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Articles de revues sur le sujet « Semoconductor Nanomaterials - Electrical Properties »

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Auteur : Grafiati
Publié le 7 septembre 2023

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1

Lapekin, Nikita I., Artem A. Shestakov, Andrey E. Brester, Arina V. Ukhina et Alexander G. Bannov. « Electrical properties of compacted carbon nanomaterials ». MATEC Web of Conferences 340 (2021) : 01047. http://dx.doi.org/10.1051/matecconf/202134001047.

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In this paper, the electrical properties of various compacted carbon nanomaterials were investigated. Compacted carbon nanomaterials (carbon nanofibers, multi-walled carbon nanotubes) were compacted into cylindrical samples and the electrical properties were measured in a frequency range from 50 Hz to 1MHz.
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2

Wang Xinda, 王欣达, 廖嘉宁 Liao Jianing, 姚煜 Yao Yu, 郭伟 Guo Wei, 康慧 Kang Hui et 彭鹏 Peng Peng. « Nanojoining and Electrical Properties of Silver Nanomaterials ». Chinese Journal of Lasers 48, no 8 (2021) : 0802016. http://dx.doi.org/10.3788/cjl202148.0802016.

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Kang, Xueya, Tu Minjing, Ming Zhang et Wang Tiandiao. « Microstructure and Electrical Properties of Doped ZnO Varistor Nanomaterials ». Solid State Phenomena 99-100 (juillet 2004) : 127–32. http://dx.doi.org/10.4028/www.scientific.net/ssp.99-100.127.

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A sol-gel method of preparation doped ZnO varistor nanomaterials is described, The influences of doped ZnO nanomaterials for varistor microstructure and electrical properties (nonlinear coefficient α, breakdown voltage V1mA , dielectric constant ε, and dielectric loss tan δ) are investigated. Compared with the conventional mixed oxide technique, varistor ceramic of prepared by nanometer materials showed a more homogeneous microstructure, smaller grain sizes, higher densities and excellent electrical properties.
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Sharma, A. Deepak, et H. Basantakumar Sharma. « Electrical and Magnetic Properties of Mn-Doped BiFeO3 Nanomaterials ». Integrated Ferroelectrics 203, no 1 (22 novembre 2019) : 81–90. http://dx.doi.org/10.1080/10584587.2019.1674969.

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Wang, Jingang, Xijiao Mu et Mengtao Sun. « The Thermal, Electrical and Thermoelectric Properties of Graphene Nanomaterials ». Nanomaterials 9, no 2 (6 février 2019) : 218. http://dx.doi.org/10.3390/nano9020218.

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Graphene, as a typical two-dimensional nanometer material, has shown its uniqueapplication potential in electrical characteristics, thermal properties, and thermoelectric propertiesby virtue of its novel electronic structure. The field of traditional material modification mainlychanges or enhances certain properties of materials by mixing a variety of materials (to form aheterostructure) and doping. For graphene as well, this paper specifically discusses the use oftraditional modification methods to improve graphene’s electrical and thermoelectrical properties.More deeply, since graphene is an atomic-level thin film material, its shape and edge conformation(zigzag boundary and armchair boundary) have a great impact on performance. Therefore, thispaper reviews the graphene modification field in recent years. Through the change in the shape ofgraphene, the change in the boundary structure configuration, the doping of other atoms, and theformation of a heterostructure, the electrical, thermal, and thermoelectric properties of graphenechange, resulting in broader applications in more fields. Through studies of graphene’s electrical,thermal, and thermoelectric properties in recent years, progress has been made not only inexperimental testing, but also in theoretical calculation. These aspects of graphene are reviewed inthis paper.
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Tran Ngoc Lan, Nguyen Tran Thuat, Hoang Ngoc Lam Huong et Nguyen Van Quynh. « Effects of silver incorporation on electrical and optical properties of CuAlxOy thin films ». Journal of Military Science and Technology, FEE (23 décembre 2022) : 294–302. http://dx.doi.org/10.54939/1859-1043.j.mst.fee.2022.294-302.

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The transparent conductive property based on Ag-doped delafossite nanomaterials are attractive for optical sensing applications due to their good electrical conductivity, good optical transparent and high temperature coefficient of resistance. Several delafossite nanomaterials and Ag-doped nanomaterials have been reported, however, Ag-doped delafossite nanomaterials have not been explored, especially regarding the electrical property with high temperature coefficient of resistance. In this study, Ag-doped delafossite CuAlxOy thin films were deposited by co-sputtering techniques. The electrical properties were carried out on a 4-point prober. The optical properties were characterized on an UV-VIS spectrometer. The results on CuAlxOy doped Ag thin films showed that CuAlxOy doped Ag can be hardly applied for transparent conductive layers. However, these films exhibited relatively high temperature coefficient of resistance of about 3%/K, thus being suitable for applications in microbolometers.
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Dobrovolskaia, Marina A., et Scott E. McNeil. « Immunological properties of engineered nanomaterials ». Nature Nanotechnology 2, no 8 (29 juillet 2007) : 469–78. http://dx.doi.org/10.1038/nnano.2007.223.

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Yoo, Doo-Yeol, Ilhwan You, Hyunchul Youn et Seung-Jung Lee. « Electrical and piezoresistive properties of cement composites with carbon nanomaterials ». Journal of Composite Materials 52, no 24 (21 mars 2018) : 3325–40. http://dx.doi.org/10.1177/0021998318764809.

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This study investigates the effect of nanomaterials on the piezoresistive sensing capacity of cement-based composites. Three different nanomaterials—multi-walled carbon nanotubes, graphite nanofibers, and graphene oxide—were considered along with a plain mortar, and a cyclic compressive test was performed. Based on a preliminary test, the optimum flowability was determined to be 150 mm in terms of fiber dispersion. The electrical resistivity of the composites substantially decreased by incorporating 1 wt% multi-walled carbon nanotubes, but only slightly decreased by including 1 wt% graphite nanofibers and graphene oxide. This indicates that the use of multi-walled carbon nanotubes is most effective in improving the conductivity of the composites compared to the use of graphite nanofibers and graphene oxide. The fractional change in resistivity of the composites with nanomaterials exhibited similar behavior to that of the cyclic compressive load, but partial reversibility in fractional change in resistivity was obtained beyond 60% of the peak load. A linear relationship between the fractional change in resistivity and cyclic compression strain (up to 1500 με) was observed in the composites with multi-walled carbon nanotubes, and the gauge factor was found to be 166.6. It is concluded that cement-based composites with 1 wt% multi-walled carbon nanotubes can be used as piezoresistive sensors for monitoring the stress/strain generated in concrete structures.
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Pietrzak, T. K., M. Maciaszek, J. L. Nowiński, W. Ślubowska, S. Ferrari, P. Mustarelli, M. Wasiucionek, M. Wzorek et J. E. Garbarczyk. « Electrical properties of V2O5 nanomaterials prepared by twin rollers technique ». Solid State Ionics 225 (octobre 2012) : 658–62. http://dx.doi.org/10.1016/j.ssi.2011.11.017.

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Pietrzak, T. K., L. Wewior, J. E. Garbarczyk, M. Wasiucionek, I. Gorzkowska, J. L. Nowinski et S. Gierlotka. « Electrical properties and thermal stability of FePO4 glasses and nanomaterials ». Solid State Ionics 188, no 1 (avril 2011) : 99–103. http://dx.doi.org/10.1016/j.ssi.2010.11.006.

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Iqbal, Muhammad Javed, et Mah Rukh Siddiquah. « Electrical and magnetic properties of chromium-substituted cobalt ferrite nanomaterials ». Journal of Alloys and Compounds 453, no 1-2 (avril 2008) : 513–18. http://dx.doi.org/10.1016/j.jallcom.2007.06.105.

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Lin, Huo Yang. « Communication Transmission Device Based on New Nano Material ». Advanced Materials Research 722 (juillet 2013) : 9–12. http://dx.doi.org/10.4028/www.scientific.net/amr.722.9.

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Nanomaterials is an important part of the whole field of nanoscience and nanotechnology, which involves the structure, properties and applications of nanomaterials, nanomaterials preparation technology and its detection means. All the individual nanoresearch areas, such as nanoelectronics, nanochemistry and nanobiology are all involved in the study of nanomaterials. This article briefly describes the electrical, optical and optoelectronic properties of nanomaterials, and elaborates the application of New nanomaterials in communication transmission, which is designed to strengthen the exchange of learning.
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Tripathi, S. K., Jagdish Kaur, R. Ridhi, Kriti Sharma et Ramneek Kaur. « Radiation Induced Effects on Properties of Semiconducting Nanomaterials ». Solid State Phenomena 239 (août 2015) : 1–36. http://dx.doi.org/10.4028/www.scientific.net/ssp.239.1.

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The irradiation of nanomaterials with energetic particles has significant effects on the properties of target materials. In addition to the well-known detrimental effects of irradiations, they have also some beneficial effects on the properties of nanomaterials. Irradiation effect can change the morphology of the materials in a controlled manner and tailor their mechanical, structural, optical and electrical properties. Irradiation induced modifications in the properties of nanomaterials can be exploited for many useful applications. With the aim of getting better performance of electronic devices, it is necessary to discuss the irradiation induced changes in the nanomaterials. In order to improve the irradiation hardness of electronic components, it is also crucial to have a fundamental understanding of the impact of the irradiation on the defect states and transport properties of the host material. In the present article, we review some recent advances on the irradiation induced effects on the properties of semiconducting nanomaterials. We have reviewed the effect of different types of irradiations which includes γ-irradiation, electron beam irradiation, laser irradiation, swift heavy ion irradiations, thermal induced, and optical induced irradiations, etc. on the various properties of semiconducting nanomaterials. In addition, the irradiation induced defects are also discussed.
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Tripathi, S. K., Ramneek Kaur et Mamta Rani. « Oxide Nanomaterials and their Applications as a Memristor ». Solid State Phenomena 222 (novembre 2014) : 67–97. http://dx.doi.org/10.4028/www.scientific.net/ssp.222.67.

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Nowadays, oxide nanomaterials have received great attention due to their unique semiconducting, optical and electrical properties. Oxide nanomaterials exhibit these properties due to their small size, high surface area to volume ratio and great biocompatibility. The chemical activity of the oxide nanomaterials is highly enhanced by the presence of oxygen vacancies in these materials. This review article outlined the unique properties, synthesis techniques and applications of oxide nanomaterials.The important and unique properties of TiO2and ZnO nanomaterials with their possible crystal structures have been discussed. In application part, the oxide nanomaterials especially ZnO has been discussed for memory device applications. To control the performance of oxide nanomaterials for memristor device application, a better understanding of their properties is required.Table of Contents
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15

Jemima Priyadarshini, S., et D. Jude Hemanth. « Investigation of Nanomaterial Dipoles for SAR Reduction in Human Head ». Frequenz 73, no 5-6 (27 mai 2019) : 189–201. http://dx.doi.org/10.1515/freq-2018-0220.

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Abstract The Nanomaterial is a pioneer in the field of modern research for its unique properties. Human exposure analysis is inevitable due to the rapid growth in technology. The concern for human welfare indicates a need for reduction of human exposure towards the radiation caused by the devices. The dielectric properties of the nanomaterials can be ideal for exploration in the field of biomedical engineering. Specific absorption rate (SAR) is a vital parameter for exposure analysis. This paper investigates the impact of Nanomaterials on the human exposure analysis. For this purpose, a dipole radiating structure operating at GSM frequency of 900 MHz and 1800 MHz are designed with conventional Copper material and compared with Carbon nanomaterials such as Graphene, Single-walled carbon nanotube (SWCNT) and Multi-walled carbon nanotube (MWCNT) for performance evaluation. Further, the specific absorption rate estimates absorption of radiation in IEEE Sam phantom human head with equivalent tissue properties. The comparison of calculated SAR with the radiating structures that are designed with the equivalent properties of that of Nanomaterials. The evaluation of Nanomaterial Antennas at the center frequency is estimated, and performance is evaluated. The designed Nanomaterials interact with IEEE SAM Phantom and SAR is calculated. The analysis of SAR impact with nanomaterials is investigated in this work.
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Liu, Mei, Weilin Su, Xiangzheng Qin, Kai Cheng, Wei Ding, Li Ma, Ze Cui et al. « Mechanical/Electrical Characterization of ZnO Nanomaterial Based on AFM/Nanomanipulator Embedded in SEM ». Micromachines 12, no 3 (28 février 2021) : 248. http://dx.doi.org/10.3390/mi12030248.

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ZnO nanomaterials have been widely used in micro/nano devices and structure due to special mechanical/electrical properties, and its characterization is still deficient and challenging. In this paper, ZnO nanomaterials, including nanorod and nanowire are characterized by atomic force microscope (AFM) and nanomanipulator embedded in scanning electron microscope (SEM) respectively, which can manipulate and observe simultaneously, and is efficient and cost effective. Surface morphology and mechanical properties were observed by AFM. Results showed that the average Young’s modulus of ZnO nanorods is 1.40 MPa and the average spring rate is 0.08 N/m. Electrical properties were characterized with nanomanipulator, which showed that the ZnO nanomaterial have cut-off characteristics and good schottky contact with the tungsten probes. A two-probe strategy was proposed for piezoelectric property measurement, which is easy to operate and adaptable to multiple nanomaterials. Experiments showed maximum voltage of a single ZnO nanowire is around 0.74 mV. Experiment criteria for ZnO manipulation and characterization were also studied, such as acceleration voltage, operation duration, sample preparation. Our work provides useful references for nanomaterial characterization and also theoretical basis for nanomaterials application.
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Shimakawa, Koichi. « Electrical properties of nanocrystalline media : Optical conductivity and non-Drude behavior in the terahertz frequency range ». Canadian Journal of Physics 92, no 7/8 (juillet 2014) : 696–99. http://dx.doi.org/10.1139/cjp-2013-0553.

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It is known that deviation from the Drude law is dramatic in most electronically conductive nanomaterials. A brief review of this topic is given, and it is shown that a series sequence of transport involving grains and grain boundaries produces a type of Lorentz resonance (non-Drude behavior) in nanomaterials. The physical parameters deduced from this model are reasonably good.
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18

Yurkov, G. Yu, A. S. Fionov, Yu A. Koksharov, V. V. Koleso et S. P. Gubin. « Electrical and magnetic properties of nanomaterials containing iron or cobalt nanoparticles ». Inorganic Materials 43, no 8 (août 2007) : 834–44. http://dx.doi.org/10.1134/s0020168507080055.

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Hossain, A., M. S. I. Sarker, M. K. R. Khan et M. M. Rahman. « Microstructural, morphological and electrical properties of sol-gel derived CoFe2O4 nanomaterials ». Journal of Physics : Conference Series 1086 (septembre 2018) : 012004. http://dx.doi.org/10.1088/1742-6596/1086/1/012004.

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KUMAR, R., et MUNISH KUMAR. « SIZE DEPENDENCE OF THERMOELASTIC PROPERTIES OF NANOMATERIALS ». International Journal of Nanoscience 09, no 05 (octobre 2010) : 537–42. http://dx.doi.org/10.1142/s0219581x10007113.

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A simple theoretical method is developed to study the size dependence of bulk modulus, Young modulus, and coefficient of volume thermal expansion of nanomaterials. We have considered different nanomaterials, viz., Ni (spherical, nanofilm), α-Fe (spherical), and Cu (nanowire). The results obtained are compared with the available experimental data. A good agreement between theory and experiment supports the validity of the model developed in the present work.
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Babu, J. Suresh, H. Bhavani Naga Prasanna, J. Satish Babu, Yamarthi Narasimha Rao et Surafel Mustefa Beyan. « Environmental Applications of Sorbents, High-Flux Membranes of Carbon-Based Nanomaterials ». Adsorption Science & ; Technology 2022 (2 février 2022) : 1–13. http://dx.doi.org/10.1155/2022/8218476.

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Carbon-based nanomaterials have unique and controllable properties, making it possible to find and treat environmental challenges. There are several environmental applications for carbon-based nanoparticles: sorbents, membranes, antimicrobial agents, and sensors. According to this review, carbon-based nanomaterials have a variety of environmental benefits. This article also looks at prospective uses of nanomaterials in environmental systems, utilizing carbonaceous nanoparticles as a guide for their physical, chemical, and electrical properties.
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Qu, Juntian, et Xinyu Liu. « Recent Advances on SEM-Based In Situ Multiphysical Characterization of Nanomaterials ». Scanning 2021 (9 juin 2021) : 1–16. http://dx.doi.org/10.1155/2021/4426254.

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Functional nanomaterials possess exceptional mechanical, electrical, and optical properties which have significantly benefited their diverse applications to a variety of scientific and engineering problems. In order to fully understand their characteristics and further guide their synthesis and device application, the multiphysical properties of these nanomaterials need to be characterized accurately and efficiently. Among various experimental tools for nanomaterial characterization, scanning electron microscopy- (SEM-) based platforms provide merits of high imaging resolution, accuracy and stability, well-controlled testing conditions, and the compatibility with other high-resolution material characterization techniques (e.g., atomic force microscopy), thus, various SEM-enabled techniques have been well developed for characterizing the multiphysical properties of nanomaterials. In this review, we summarize existing SEM-based platforms for nanomaterial multiphysical (mechanical, electrical, and electromechanical) in situ characterization, outline critical experimental challenges for nanomaterial optical characterization in SEM, and discuss potential demands of the SEM-based platforms to characterizing multiphysical properties of the nanomaterials.
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Gao, Jing, Yujin Ji, Youyong Li, Jun Zhong et Xuhui Sun. « The morphological effect on electronic structure and electrical transport properties of one-dimensional carbon nanostructures ». RSC Advances 7, no 34 (2017) : 21079–84. http://dx.doi.org/10.1039/c7ra01492a.

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Zong, Jia-Qi, Shu-Feng Zhang, Wei-Xiao Ji, Chang-Wen Zhang, Ping Li et Pei-Ji Wang. « Electric structure and optical properties of ReS2 nanomaterials ». Superlattices and Microstructures 122 (octobre 2018) : 262–67. http://dx.doi.org/10.1016/j.spmi.2018.07.040.

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Kardan Moghaddam, Hossein, Mohamad Reza Maraki et Amir Rajaei. « Application of Carbon Nanotubes(CNT) on The Computer Science and Electrical Engineering:A Review ». International Journal of Reconfigurable and Embedded Systems (IJRES) 9, no 1 (1 mars 2020) : 61. http://dx.doi.org/10.11591/ijres.v9.i1.pp61-82.

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In recent years, dimensions and sizes of components and parts in the<br />computer and electronic industries have been steadily reducing, as they are<br />now considered very tiny tools and there is always a need to store and<br />process information stronger. Nanotubes have poor magnetic properties. If<br />nanotubes are covered by ferromagnetic nanoparticles, their magnetic<br />properties can be improved and they can be used in the manufacture of<br />nanoelectronic devices in the computer and electronic industries. In addition<br />to reviewing the structure and properties of materials made using different<br />nanomaterials for use in the computer and electronic industries, the present<br />paper aimed to study different applications of nanomaterials, especially<br />carbon nanotubes, in the manufacture of electronic devices. The present<br />study showed that the corporation of nanomaterials into electronic devices is<br />a promising approach for future applications which can revolutionize the<br />computer industry.
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Du, Mingrui, Hongwen Jing, Yuan Gao, Haijian Su et Hongyuan Fang. « Carbon nanomaterials enhanced cement-based composites : advances and challenges ». Nanotechnology Reviews 9, no 1 (12 mars 2020) : 115–35. http://dx.doi.org/10.1515/ntrev-2020-0011.

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AbstractCarbon nanomaterials, predominantly carbon nanofibers, carbon nanotubes, graphene, graphene nanoplates, graphene oxide and reduced graphene oxide, possess superior chemical, physical and mechanical properties. They have been successfully introduced into ordinary Portland cement to give enhancements in terms of mechanical properties, durability and electrical/thermal conductivity, and to modify the functional properties, converting conventional cement-based materials into stronger, smarter and more durable composites. This paper provides a comprehensive review of the properties of carbon nanomaterials, current developments and novel techniques in carbon nanomaterials enhanced cement-based composites (CN-CBCs). Further study of the applications of CN-CBCs at industrial scale is also discussed.
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27

Cohen-Karni, Tzahi. « (Invited) Multi-Modality Input/Output Interfaces with Tissue and Cells Using Nanocarbons ». ECS Meeting Abstracts MA2022-01, no 8 (7 juillet 2022) : 705. http://dx.doi.org/10.1149/ma2022-018705mtgabs.

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My team’s efforts are focused on three major thrusts: (i) synthesis and in depth mechanistic investigation of the unique emergent optical, thermal, electrical and electrochemical properties of novel hybrid-nanomaterials and nanomaterials topologies composed on one-dimensional and two-dimensional building blocks, (ii) application and characterization of hybrid-nanomaterials interfaces with cells and tissue, and (iii) development and engineering of nanomaterials-based platforms to interrogate and affect the electrical properties of tissue and cells such as cardiomyocytes, and neurons, with a specific focus to understand electrical signal transduction in complex 3D cellular assemblies. Major questions we strive to answer are: Can we make materials and platforms that are tailored to allow seamless and stable integration with cells and tissue enabling sensing and actuation? Can hybrid-nanomaterials allow new insights about biological processes, e.g., tissue development and disease progression? In this talk I will describe our recent efforts in tackling these challenges. Our highly flexible bottom-up nanomaterials synthesis capabilities allow us to form unique hybrid-nanomaterials that can be used in various input/output bioelectrical interfaces, i.e., bioelectrical platforms for chemical and physical sensing and actuation. We developed a breakthrough bioelectrical interface, a 3D self-rolled biosensor arrays (3D-SR-BAs) of either active field effect transistors or passive microelectrodes to measure both cardiac and neural spheroids electrophysiology in 3D. This approach enables electrophysiological investigation and monitoring of the complex signal transduction in 3D cellular assemblies toward an organ-on-an-electronic-chip (organ-on-e-chip) platform for tissue maturation investigations and development of drugs for disease treatment. Utilizing graphene, a two-dimensional (2D) atomically thin carbon allotrope, we demonstrated a new technique to simultaneously record the intracellular electrical activity of multiple excitable cells with ultra-microelectrodes that can be as small as the size as an axon ca. 2µm in size. The outstanding electrochemical properties of our hybrid-nanomaterials allowed us to develop electrical sensors and actuators, e.g., sensors to explore the brain chemistry and sensors/actuators that are deployed in a large volumetric muscle loss animal model. Finally, using the unique optical properties of nanocarbons, e.g., graphene-based hybrid-nanomaterials and 2D nanocarbides (MXene), we have formed remote, non-genetic bioelectrical interfaces with excitable cells and modulated cellular and network activity with high precision and low needed energy. In summary, the exceptional synthetic control and flexible assembly of nanomaterials provide powerful tools for fundamental studies and applications in life science and potentially seamlessly merge nanomaterials-based platforms with cells, fusing nonliving and living systems together.
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Abbasi, Fateme, Nasibeh Hajilary et Mashallah Rezakazemi. « Antibacterial properties of MXene-based nanomaterials : A review ». Materials Express 12, no 1 (1 janvier 2022) : 34–48. http://dx.doi.org/10.1166/mex.2022.2138.

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MXenes are new two-dimensional (2D) nanoscale materials with strong hydrophobicity, flexibility, and remarkable mechanical strength. MXenes have attracted attention in a wide range of applications due to their unique electrical properties, magnetic properties, and catalytic properties, and ability to form diverse nanocomposites with a variety of materials including carbon nanotubes (CNTs), metal oxides, metal–organic frameworks (MOFs), and organic polymers. MXene-based nanomaterials have demonstrated great potential in antibacterial processes owing to their excellent electrochemical performance, high surface area, and remarkable hydrophilicity. MXene nanomaterials are incredibly effective against a wide variety of bacteria and have undergone extensive research because of their strong bactericidal activities. In this paper, we review all types of MXenes, their different synthesis methods and then summarize the recent advances on antibacterial applications of MXenes under various conditions and bacterial load. This review intends to provide valuable insight and inspiration for the further development of effective and safe MXene-based nanomaterials with antibacterial properties.
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Ansari, Mohammad Omaish, Kalamegam Gauthaman, Abdurahman Essa, Sidi A. Bencherif et Adnan Memic. « Graphene and Graphene-Based Materials in Biomedical Applications ». Current Medicinal Chemistry 26, no 38 (3 janvier 2019) : 6834–50. http://dx.doi.org/10.2174/0929867326666190705155854.

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: Nanobiotechnology has huge potential in the field of regenerative medicine. One of the main drivers has been the development of novel nanomaterials. One developing class of materials is graphene and its derivatives recognized for their novel properties present on the nanoscale. In particular, graphene and graphene-based nanomaterials have been shown to have excellent electrical, mechanical, optical and thermal properties. Due to these unique properties coupled with the ability to tune their biocompatibility, these nanomaterials have been propelled for various applications. Most recently, these two-dimensional nanomaterials have been widely recognized for their utility in biomedical research. In this review, a brief overview of the strategies to synthesize graphene and its derivatives are discussed. Next, the biocompatibility profile of these nanomaterials as a precursor to their biomedical application is reviewed. Finally, recent applications of graphene-based nanomaterials in various biomedical fields including tissue engineering, drug and gene delivery, biosensing and bioimaging as well as other biorelated studies are highlighted.
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He, Xiaoai, Aijuan Lu, Jin Cheng, Junfang Chen, Qianhui Song, Wenfang Liu et Chuanpin Chen. « Overview of the Application of Flow Microreactors in the Synthesis of Silver Nanomaterials ». Nano 12, no 11 (novembre 2017) : 1730002. http://dx.doi.org/10.1142/s179329201730002x.

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The unique electrical, optical and biological properties of silver nanomaterials have attracted significant attention of many researchers. Since the size and shape of silver nanomaterials have significant effects on the properties of silver nanomaterials, extensive research has focused on synthesis and characterization of silver nanomaterials. However, almost all of the syntheses of silver nanomaterials were carried out in traditional batch reactors, which typically suffer from inhomogeneous mixing and corresponding spatial variations under reaction conditions, ultimately leading to poor quality of the final nanomaterials. Recently, the emerging microfluidic technology not only furnishes novel strategies for the synthesis of silver nanomaterials but also brings great opportunities and impetus to improve the quality and yield of silver nanomaterials due to enhanced mass and heat transfer. The current paper reviews recent achievements in the synthesis of silver nanomaterials in flow microreactors. Various strategies adopted for the synthesis of silver nanomaterials in microreactors are presented and compared, including synthesis in single-phase and multi-phase flow microreactors. In addition, the factors that affect the size and size distribution of silver nanomaterials in flow microreactors synthesis are also discussed briefly.
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Hao, Lu, Changyi Dong, Lifeng Zhang, Kaiming Zhu et Demei Yu. « Polypyrrole Nanomaterials : Structure, Preparation and Application ». Polymers 14, no 23 (25 novembre 2022) : 5139. http://dx.doi.org/10.3390/polym14235139.

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In the past decade, nanostructured polypyrrole (PPy) has been widely studied because of its many specific properties, which have obvious advantages over bulk-structured PPy. This review outlines the main structures, preparation methods, physicochemical properties, potential applications, and future prospects of PPy nanomaterials. The preparation approaches include the soft micellar template method, hard physical template method and templateless method. Due to their excellent electrical conductivity, biocompatibility, environmental stability and reversible redox properties, PPy nanomaterials have potential applications in the fields of energy storage, biomedicine, sensors, adsorption and impurity removal, electromagnetic shielding, and corrosion resistant. Finally, the current difficulties and future opportunities in this research area are discussed.
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Panda, Sayak Subhra, Howard E. Katz et John D. Tovar. « Solid-state electrical applications of protein and peptide based nanomaterials ». Chemical Society Reviews 47, no 10 (2018) : 3640–58. http://dx.doi.org/10.1039/c7cs00817a.

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Jiwanti, Prastika K., Brasstira Y. Wardhana, Laurencia G. Sutanto, Diva Meisya Maulina Dewi, Ilmanda Zalzabhila Danistya Putri et Ilmi Nur Indira Savitri. « Recent Development of Nano-Carbon Material in Pharmaceutical Application : A Review ». Molecules 27, no 21 (4 novembre 2022) : 7578. http://dx.doi.org/10.3390/molecules27217578.

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Carbon nanomaterials have attracted researchers in pharmaceutical applications due to their outstanding properties and flexible dimensional structures. Carbon nanomaterials (CNMs) have electrical properties, high thermal surface area, and high cellular internalization, making them suitable for drug and gene delivery, antioxidants, bioimaging, biosensing, and tissue engineering applications. There are various types of carbon nanomaterials including graphene, carbon nanotubes, fullerenes, nanodiamond, quantum dots and many more that have interesting applications in the future. The functionalization of the carbon nanomaterial surface could modify its chemical and physical properties, as well as improve drug loading capacity, biocompatibility, suppress immune response and have the ability to direct drug delivery to the targeted site. Carbon nanomaterials could also be fabricated into composites with proteins and drugs to reduce toxicity and increase effectiveness in the pharmaceutical field. Thus, carbon nanomaterials are very effective for applications in pharmaceutical or biomedical systems. This review will demonstrate the extraordinary properties of nanocarbon materials that can be used in pharmaceutical applications.
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Abbas, Samer Saad, Raouf Mahmood Raouf et Harith Hasoon Al-Moameri. « Preparation of Calcium Titanate Nanoparticles with Investigate the Thermal and Electrical Properties by Incorporating Epoxy ». Materials Science Forum 1083 (6 avril 2023) : 13–22. http://dx.doi.org/10.4028/p-ep913a.

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In recent years, the materials industry has begun to develop in the directions on enabling the effect of nanomaterials. Nanomaterials are one of the most basic materials that have helped in the development of industrial technology because of their unique properties. These properties make them spread in many areas, especially in the electrical and thermal. Still, traditional materials, at present, suffer from issues that restrict their use, such as thermal conductivity and electrical conductivity. Currently, nanomaterials owing to outstanding performance those traditional materials do not possess. In contrast, scientists have recently focused their efforts on increasing the (electrical and thermal) applications of epoxy resins. In this study, we combined nanoparticles (CaTiO3) with type epoxy resin (Quickmast 105) with different concentrations of CaTiO3 (0, 0.01, 0.02, 0.03, 0.04, 0.05 wt%) by casting. Several tests such as thermal conductivity, thermal expansion, electrical conductivity, dielectric constant and dielectric loss have been carried out. The test results showed a significant increase in thermal conductivity with increasing concentrations of nanoparticles in epoxy, decreasing thermal expansion by 28%, and increasing AC conductivity for all concentrations. The relative permittivity (dielectric constant) of epoxy nanocomposites remains nearly constant with increasing frequency. For dielectric loss, it can be seen that the epoxy nanocomposite's tan values are increasing also with high concentrations.
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Deng, Yuanxiang. « Electrical Properties of New Carbon-Based Magnetic Nanomaterials and Spintronic Device Design ». Integrated Ferroelectrics 226, no 1 (3 juin 2022) : 125–39. http://dx.doi.org/10.1080/10584587.2022.2061201.

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Bokobza, Liliane. « Mechanical and Electrical Properties of Elastomer Nanocomposites Based on Different Carbon Nanomaterials ». C 3, no 4 (12 avril 2017) : 10. http://dx.doi.org/10.3390/c3020010.

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Dimou, Angeliki-Eirini, Christina-Margarita Charalampidou, Zoi S. Metaxa, Stavros K. Kourkoulis, Ioannis Karatasios, Georgios Asimakopoulos et Nikolaos D. Alexopoulos. « Mechanical and electrical properties of hydraulic lime pastes reinforced with carbon nanomaterials ». Procedia Structural Integrity 28 (2020) : 1694–701. http://dx.doi.org/10.1016/j.prostr.2020.10.144.

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Saleem, M., et A. Mishra. « On the structural, optical and electrical properties of Cu2+ doped Zn0.94Cd0.06O nanomaterials ». Chinese Journal of Physics 61 (octobre 2019) : 166–79. http://dx.doi.org/10.1016/j.cjph.2019.06.017.

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Lyson-Sypien, B., A. Czapla, M. Lubecka, E. Kusior, K. Zakrzewska, M. Radecka, A. Kusior, A. G. Balogh, S. Lauterbach et H. J. Kleebe. « Gas sensing properties of TiO2–SnO2 nanomaterials ». Sensors and Actuators B : Chemical 187 (octobre 2013) : 445–54. http://dx.doi.org/10.1016/j.snb.2013.01.047.

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SIRGHIE, Alexandru, Mihai OPROESCU, Gabriel Vasile IANA et Adriana Gabriela PLAIASU. « Nanostructured materials for CBRNdetection ». University of Pitesti. Scientific Bulletin - Automotive Series 30, no 1 (1 novembre 2020) : 1–8. http://dx.doi.org/10.26825/bup.ar.2020.009.

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Nanomaterials are gaining significance in technological applications due to their chemical, physical, and mechanical properties and enhanced performance when compared with their bulkier counterparts. The synthesis of nanostructured materials has led to a significant increase in properties (thermal, optical, electrical, magnetic, mechanical) as well as the discovery of materials with new properties due the fact that at the nanoscale the materials have a high surface area Most applications of nanomaterials in sensors are related to their synthesis. In this paper we report recent trends in applications of various nanomaterials such as nanoparticles, carbon nanotubes, nanowires andgraphene to detect CBRN agents.
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Fometu, Sandra Senyo, Guohua Wu, Lin Ma et Joan Shine Davids. « A review on the biological effects of nanomaterials on silkworm (Bombyx mori) ». Beilstein Journal of Nanotechnology 12 (12 février 2021) : 190–202. http://dx.doi.org/10.3762/bjnano.12.15.

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The production of high-quality silkworm silk is of importance in sericulture in addition to the production of biomass, silk proteins, and animal feed. The distinctive properties of nanomaterials have the potential to improve the development of various sectors including medicine, cosmetics, and agriculture. The application of nanotechnology in sericulture not only improves the survival rate of the silkworm, promotes the growth and development of silkworm, but also improves the quality of silk fiber. Despite the positive contributions of nanomaterials, there are a few concerns regarding the safety of their application to the environment, in humans, and in experimental models. Some studies have shown that some nanomaterials exhibit toxicity to tissues and organs of the silkworm, while other nanomaterials exhibit therapeutic properties. This review summarizes some reports on the biological effects of nanomaterials on silkworm and how the application of nanomaterials improves sericulture.
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Wang, Ailing, et Ping Wang. « Analysis of Load-Bearing Electrical Properties of Composite Materials Based on Homogenization Theory ». Science of Advanced Materials 14, no 10 (1 octobre 2022) : 1582–88. http://dx.doi.org/10.1166/sam.2022.4371.

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In this study, the broadband dielectric spectrum of polyimide composites was examined using the homogenization theory. The findings demonstrate that the addition of boron nitride nanosheets (BNNSs) and silver nanoparticles (AgNPs) causes an increase in conductivity, dielectric constant, and dielectric loss of the composites but does not result in a surge in the three parameters; the results also demonstrate that an increase in temperature causes an increase in dielectric constant and dielectric loss of the composites. In addition, temperature has a bigger impact on the dielectric loss than it does on the dielectric constant. An increase in the amount of polarized charges and a shallower bulk trap depth can result from the addition of nanomaterials, according to research on thermally stimulated current in composite materials. The presence of the interfacial region, which made it simple to cause charge accumulation and simple to form conduction current, is primarily responsible for the significant increase in bulk conductivity of the composites at 50 Hz that occurred with the addition of more nanomaterials. The large rise in bulk conductivity of the composites at 50 Hz that happened with the addition of more nanomaterials is mostly due to the existence of the interfacial region, which made it simple to produce charge buildup and simple to form conduction current. The variation in volume conductivity when the doping ratio is less than 10 vol% is not significant due to AgNPs’ low concentration and ambiguous contribution to the conduction current. As the polarization temperature rises, the amount of polarization charges increases, but it has minimal effect on the bulk trap depth of the composites.
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Forrest, David R., et U. (Balu) Balachandran. « Carbon Covetic Nanomaterials Show Promise ». AM&P Technical Articles 175, no 6 (1 septembre 2017) : 30–31. http://dx.doi.org/10.31399/asm.amp.2017-06.p030.

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Abstract A recently discovered nanocarbon phase, first imaged to atomic resolution in 2012, is being exploited to increase the electrical and thermal conductivity of metals and alloys. These unique materials, known as carbon covetic nanomaterials or covetics for short, represent an opportunity to improve energy efficiency over a wide range of applications using low-cost raw materials and scalable processes. This article briefly describes the structure, properties, and potential applications for covetics.
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Zhang, Jin, et S. A. Meguid. « Piezoelectricity of 2D nanomaterials : characterization, properties, and applications ». Semiconductor Science and Technology 32, no 4 (24 mars 2017) : 043006. http://dx.doi.org/10.1088/1361-6641/aa5cfb.

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Ono, Takahito, Chia-cheng Fan et Masayoshi Esashi. « Micro instrumentation for characterizing thermoelectric properties of nanomaterials ». Journal of Micromechanics and Microengineering 15, no 1 (24 septembre 2004) : 1–5. http://dx.doi.org/10.1088/0960-1317/15/1/001.

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Dang, Chao, Mingyang Liu, Zhiwei Lin et Wei Yan. « Selenium nanomaterials enabled flexible and wearable electronics ». Chemical Synthesis 3, no 2 (2023) : 14. http://dx.doi.org/10.20517/cs.2022.33.

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Selenium (Se), as an intriguing chalcogenide semiconductor, has traditionally been used for solar energy harvesting. The recent development of nanoscience and nanotechnology has enabled a myriad of Se nanomaterials with compelling structures and unique features. Compared with other chalcogens, Se nanomaterials possess anisotropic crystalline structure, intrinsic chirality, and high reactivity, as well as unique optical, electrical, photoconductive, and piezoelectrical properties. The integration of these Se nanomaterials with technologically important materials, such as conductors and semiconductors, over flexible, bendable, stretchable, and highly curved substrates offer a new generation of Se nanomaterial-based flexible and wearable electronics. In this mini review, we survey the recent scientific and technological breakthroughs in Se nanomaterials-enabled flexible and wearable electronics. We highlight the synthesis, fabrication, morphologies, structure, and properties (optical, electrical, optoelectrical, photovoltaic, and piezoelectric) of Se nanomaterials as well as their integration into innovative functional devices that deliver higher forms of applications across smart sensing, health care, and energy domains. We conclude with a critical analysis of existing challenges and opportunities that will trigger the continued progress of the field.
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Wu, Hong, et Rui Li. « Properties of Bismuth Telluride Nanomaterials : A Computer Simulation Study ». Journal of Nanoelectronics and Optoelectronics 12, no 11 (1 novembre 2017) : 1199–202. http://dx.doi.org/10.1166/jno.2017.2270.

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Bayan, E. M., T. G. Lupeiko, L. E. Pustovaya et M. G. Volkova. « Synthesis and photocatalytic properties of Sn–TiO2 nanomaterials ». Journal of Advanced Dielectrics 10, no 01n02 (février 2020) : 2060018. http://dx.doi.org/10.1142/s2010135x20600188.

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Sn-doped TiO2 nanomaterials were synthesized by sol–gel method. It was shown the phase compositions and phase transitions change with the introduction of different tin amounts (0.5–20[Formula: see text]mol.%). X-ray powder diffraction was used to study the effect of different tin amounts on the anatase–rutile phase transition. It was found that the introduction of ions increases the thermal stability of anatase modifications. The material’s photocatalytic activity was studied in reaction with a model pollutant (methylene blue) photodegradation under UV and visible light activation. The best photocatalytic properties were shown for material, which contains 5[Formula: see text]mol.% of Sn.
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Abu Owida, Hamza, Nidal M. Turab et Jamal Al-Nabulsi. « Carbon nanomaterials advancements for biomedical applications ». Bulletin of Electrical Engineering and Informatics 12, no 2 (1 avril 2023) : 891–901. http://dx.doi.org/10.11591/eei.v12i2.4310.

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The development of new technologies has helped tremendously in delivering timely, appropriate, acceptable, and reasonably priced medical treatment. Because of developments in nanoscience, a new class of nanostructures has emerged. Nanomaterials, because of their small size, display exceptional physio-chemical capabilities such as enhanced absorption and reactivity, increased surface area, molar extinction coefficients, tunable characteristics, quantum effects, and magnetic and optical properties. Researchers are interested in carbon-based nanomaterials due to their unique chemical and physical properties, which vary in thermodynamic, biomechanical, electrical, optical, and structural aspects. Due to their inherent properties, carbon nanomaterials, including fullerenes, graphene, carbon nanotubes (CNTs), and carbon nanofibers (CNFs), have been intensively studied for biomedical applications. This article is a review of the most recent findings about the development of carbon-based nanomaterials for use in biosensing, drug delivery, and cancer therapy, among other things.
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Goyal, Monika. « Study of size effect on thermophysical properties of metallic nanosolids ». High Temperatures-High Pressures 52, no 1 (2023) : 19–36. http://dx.doi.org/10.32908/hthp.v52.1305.

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In the present study, a phenomenological model based on thermodynamic variables is developed to study the thermophysical properties of nanomaterials with respect to size in nanoscale. The model input parameters are lattice packing fraction depending on crystal structure and atomic diameter of nanosolid. The shape parameter is incorporated in the model to study the variation in physical properties of metallic nanosolids with shape. The size and shape effect on melting temperature 𝑇𝑀𝑁, Debye temperature θ𝐷𝑁, Specific heat capacity 𝐶𝑁, thermal conductivity 𝐾𝑁 and electrical conductivity σ𝑁 is studied in metallic nanosolids. It is observed from the results obtained that both melting temperature and Debye temperature get reduced with reduction in size of nanosolid. Also Thermal conductivity and electrical conductivity in nanosolids decrease as size reduces. This is due to the increase in the number of surface atoms with size reduction and pronounced quantum confinement in nanomaterials. Also, the drastic change in number of surface atoms with the change in shape of the nanomaterial of same size brings about change in its thermophysical properties. The present model results are found consistent with the available experimental and simulated results of previous workers and may be useful for experimental researchers exploring the physical properties of nanomaterials.
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