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Journal articles on the topic 'Nanostructured architectures'

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Author: Grafiati

Published: 10 December 2022

Last updated: 28 January 2023

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1

LU, PAI, and DONGFENG XUE. "EMULSION-ASSISTED SYNTHESIS OF NICKEL SULFIDE HIERARCHICAL ARCHITECTURES." Modern Physics Letters B 23, no. 31n32 (December 30, 2009): 3843–49. http://dx.doi.org/10.1142/s0217984909021909.

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We herein demonstrated the preparation of nickel sulfide hierarchical architectures via an emulsion-assisted route in hydrothermal system. Scanning electron microscope images of the products at different reaction stages indicated that the construction of the nanostructured hierarchical nickel sulfide was accomplished through oriented attachment accompanied by an encapsulation procedure, and the as-obtained products exhibited uniform architectures assembled by various primary units (e.g. nanorods, nanosheets). In addition, the effect of different surfactants on the shape of nickel sulfide nanostructures was further studied. The results indicated that the hierarchical architectures can only be achieved with the assistance of anionic surfactant (e.g. sodium dodecyl sulfate). These as-prepared novel hierarchical nanostructures may be used in various areas, including industrial catalysis, and energy storage etc.

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2

Cho, Seong J., Se Yeong Seok, Jin Young Kim, Geunbae Lim, and Hoon Lim. "One-Step Fabrication of Hierarchically Structured Silicon Surfaces and Modification of Their Morphologies Using Sacrificial Layers." Journal of Nanomaterials 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/289256.

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Fabrication of one-dimensional nanostructures is a key issue for optical devices, fluidic devices, and solar cells because of their unique functionalities such as antireflection and superhydrophobicity. Here, we report a novel one-step process to fabricate patternable hierarchical structures consisting of microstructures and one-dimensional nanostructures using a sacrificial layer. The layer plays a role as not only a micromask for producing microstructures but also as a nanomask for nanostructures according to the etching time. Using this method, we fabricated patterned hierarchical structures, with the ability to control the shape and density of the nanostructure. The various architectures provided unique functionalities. For example, our sacrificial-layer etching method allowed nanostructures denser than what would be attainable with conventional processes to form. The dense nanostructure resulted in a very low reflectance of the silicon surface (less than 1%). The nanostructured surface and hierarchically structured surface also exhibited excellent antiwetting properties, with a high contact angle (>165°) and low sliding angle (<1°). We believe that our fabrication approach will provide new insight into functional surfaces, such as those used for antiwetting and antireflection surface applications.

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3

LIU, FEI, and DONGFENG XUE. "CHEMICAL DESIGN OF COMPLEX NANOSTRUCTURED METAL OXIDES IN SOLUTION." International Journal of Nanoscience 08, no. 06 (December 2009): 571–88. http://dx.doi.org/10.1142/s0219581x09006407.

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Nanostructured materials with controlled architectures are desirable for many applications, among which, metal oxides are especially important in optics, electronics, biology, catalysis, and energy conversions. Various chemical routes have been widely investigated for the synthesis of nanostructured metal oxide particles and films. More recently, deliberately designed chemical strategies have been used to produce particles and films composed of more complex crystal structures. In this paper, we discuss some recent progresses in the design of complex nanostructures through chemical routes, emphasize particularly on metal oxides. We first review some basic concepts involved in the fabrication of complex nanostructures, including crystal nucleation and growth, shape controlling and ripening process. We then describe more recent work on the use of different methods to synthesize a wide range of complex nanostructures, including hierarchical structures, heterostructures, as well as oriented nanowires and nanotubes. Such purposely built materials are designed, and engineered to match the physical, chemical, and structural requirements of their applications.

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4

Luo, Shiting, Limei Xu, Jinshan Li, Wenjing Yang, Minli Liu, and Lin Ma. "Facile Synthesis of MoS2 Hierarchical Nanostructures as Electrodes for Capacitor with Enhanced Pseudocapacitive Property." Nano 15, no. 01 (January 2020): 2050011. http://dx.doi.org/10.1142/s1793292020500113.

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In this work, the 3D porous hierarchical MoS2 nanostructures were prepared via a simple hydrothermal deposition method only utilizing titanium (Ti) mesh as a substrate. The as-synthesized uniform MoS2 flower-like nanostructures were assembled by nanosheets composed of several stacking layers. The curved and rough surface of cylindrical Ti wire was beneficial to assembly of MoS2 nanosheets into hierarchical architectures. Moreover, the electrochemical performance of the as-prepared MoS2 nanostructured electrodes for capacitors was also investigated. The structural advantages lead to a remarkably improved pseudocapacitive property including high capacitance and durable cycling ability.

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5

Dylla, Anthony G., Graeme Henkelman, and Keith J. Stevenson. "Lithium Insertion in Nanostructured TiO2(B) Architectures." Accounts of Chemical Research 46, no. 5 (February 20, 2013): 1104–12. http://dx.doi.org/10.1021/ar300176y.

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6

Ilyas, Nasir, Dongyang Li, Yuhao Song, Hao Zhong, Yadong Jiang, and Wei Li. "Low-Dimensional Materials and State-of-the-Art Architectures for Infrared Photodetection." Sensors 18, no. 12 (November 27, 2018): 4163. http://dx.doi.org/10.3390/s18124163.

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Infrared photodetectors are gaining remarkable interest due to their widespread civil and military applications. Low-dimensional materials such as quantum dots, nanowires, and two-dimensional nanolayers are extensively employed for detecting ultraviolet to infrared lights. Moreover, in conjunction with plasmonic nanostructures and plasmonic waveguides, they exhibit appealing performance for practical applications, including sub-wavelength photon confinement, high response time, and functionalities. In this review, we have discussed recent advances and challenges in the prospective infrared photodetectors fabricated by low-dimensional nanostructured materials. In general, this review systematically summarizes the state-of-the-art device architectures, major developments, and future trends in infrared photodetection.

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7

dos Santos-Gómez, Lucía, Javier Zamudio-García, José M. Porras-Vázquez, Enrique R. Losilla, and David Marrero-López. "Nanostructured BaCo0.4Fe0.4Zr0.1Y0.1O3-δ Cathodes with Different Microstructural Architectures." Nanomaterials 10, no. 6 (May 30, 2020): 1055. http://dx.doi.org/10.3390/nano10061055.

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Lowering the operating temperature of solid oxide fuel cells (SOFCs) is crucial to make this technology commercially viable. In this context, the electrode efficiency at low temperatures could be greatly enhanced by microstructural design at the nanoscale. This work describes alternative microstructural approaches to improve the electrochemical efficiency of the BaCo0.4Fe0.4Zr0.1Y0.1O3-δ (BCFZY) cathode. Different electrodes architectures are prepared in a single step by a cost-effective and scalable spray-pyrolysis deposition method. The microstructure and electrochemical efficiency are compared with those fabricated from ceramic powders and screen-printing technique. A complete structural, morphological and electrochemical characterization of the electrodes is carried out. Reduced values of area specific resistance are achieved for the nanostructured cathodes, i.e., 0.067 Ω·cm2 at 600 °C, compared to 0.520 Ω·cm2 for the same cathode obtained by screen-printing. An anode supported cell with nanostructured BCFZY cathode generates a peak power density of 1 W·cm−2 at 600 °C.

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8

Mohnani, Stefan, Anna Llanes-Pallas, and Davide Bonifazi. "Mastering nanostructured materials through H-bonding recognitions at interfaces." Pure and Applied Chemistry 82, no. 4 (March 20, 2010): 917–29. http://dx.doi.org/10.1351/pac-con-10-01-06.

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The controlled engineering of functional architectures composed of π-systems with unusual opto-electronic properties is currently being investigated intensively from both fundamental research and technological application viewpoints. In particular, the exploitation of the supramolecular approach for the facile construction of multidimensional architectures, featuring cavities capable of hosting functional molecules, could be used in several applications, such as nanomedicine, molecular-based memory storage devices, and sensors. This paper highlights our recent strategies to use hydrogen-bonding interactions to prepare nanostructured functional architectures via the self-assembly of organic molecular modules studied at different interfaces.

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9

Zhuge, Fuwei, Zhi Zheng, Peng Luo, Liang Lv, Yu Huang, Huiqiao Li, and Tianyou Zhai. "Nanostructured Materials and Architectures for Advanced Infrared Photodetection." Advanced Materials Technologies 2, no. 8 (May 30, 2017): 1700005. http://dx.doi.org/10.1002/admt.201700005.

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10

Di Maria, Francesca, Mattia Zangoli, and Giovanna Barbarella. "Supramolecular Thiophene-Based Materials: A Few Examples of the Interplay between Synthesis, Optoelectronic Properties and Applications." Organic Materials 03, no. 02 (April 2021): 321–36. http://dx.doi.org/10.1055/s-0041-1730934.

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Supramolecular nanostructured thiophene based materials with optoelectronic functions are of wide current interest and are playing a crucial role in different fields of nanoscience and nanotechnology. This short review gives a concise report of some particularly interesting examples from our own work concerning thiophene-based supramolecular architectures at multiple length scales, their function and application in devices. We start with some general considerations on the great chemical diversity of thiophene derivatives and their supramolecular architectures. Then we focus on how the supramolecular organization of specific thiophene derivatives may generate nanostructures that enable new functions and applications in devices. For each example, we report the synthesis of the corresponding thiophene derivatives.1. Introduction2. Supramolecular Organization may Impart New Functions to the System3. Supramolecular and Optoelectronic Properties of Oligothiophene-S,S-dioxides4. Colloidal Nanoparticles formed by Self-Assembly of Thiophene-Based Polymers5. Conclusions and Outlook

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11

Lochmann, Stefanie, Julia Grothe, Kai Eckhardt, Desirée Leistenschneider, Lars Borchardt, and Stefan Kaskel. "Nanoimprint lithography of nanoporous carbon materials for micro-supercapacitor architectures." Nanoscale 10, no. 21 (2018): 10109–15. http://dx.doi.org/10.1039/c8nr01535j.

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12

Soares, Andrey Coatrini, Juliana Coatrini Soares, Valquiria Cruz Rodrigues, Osvaldo N. Oliveira, and Luiz Henrique Capparelli Mattoso. "Controlled molecular architectures in microfluidic immunosensors for detecting Staphylococcus aureus." Analyst 145, no. 18 (2020): 6014–23. http://dx.doi.org/10.1039/d0an00714e.

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13

Sanchez-Ballester, Noelia M., Gaulthier Rydzek, Amir Pakdel, Anjaneyulu Oruganti, Kotone Hasegawa, Masanori Mitome, Dmitri Golberg, Jonathan P. Hill, Hideki Abe, and Katsuhiko Ariga. "Nanostructured polymeric yolk–shell capsules: a versatile tool for hierarchical nanocatalyst design." Journal of Materials Chemistry A 4, no. 25 (2016): 9850–57. http://dx.doi.org/10.1039/c6ta03311c.

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14

Ilyas, Nasir, Jinyong Wang, Chunmei Li, Dongyang Li, Hao Fu, Deen Gu, Xiangdong Jiang, Fucai Liu, Yadong Jiang, and Wei Li. "Nanostructured Materials and Architectures for Advanced Optoelectronic Synaptic Devices." Advanced Functional Materials 32, no. 15 (December 22, 2021): 2110976. http://dx.doi.org/10.1002/adfm.202110976.

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15

Altamura, Davide, Teresa Sibillano, Dritan Siliqi, Liberato De Caro, and Cinzia Giannini. "Assembled Nanostructured Architectures Studied by Grazing Incidence X-Ray Scattering." Nanomaterials and Nanotechnology 2 (January 2012): 16. http://dx.doi.org/10.5772/55777.

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16

Wang, Zongjie, Fan Xia, Mahmoud Labib, Moloud Ahmadi, Haijie Chen, Jagotamoy Das, Sharif U. Ahmed, Stéphane Angers, Edward H. Sargent, and Shana O. Kelley. "Nanostructured Architectures Promote the Mesenchymal–Epithelial Transition for Invasive Cells." ACS Nano 14, no. 5 (May 5, 2020): 5324–36. http://dx.doi.org/10.1021/acsnano.9b07350.

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17

Soares, Juliana Coatrini, Flavio Makoto Shimizu, Andrey Coatrini Soares, Luciano Caseli, Jacqueline Ferreira, and Osvaldo N. Oliveira. "Supramolecular Control in Nanostructured Film Architectures for Detecting Breast Cancer." ACS Applied Materials & Interfaces 7, no. 22 (May 29, 2015): 11833–41. http://dx.doi.org/10.1021/acsami.5b03761.

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18

Kadib, Abdelkrim El, Annie Finiels, Nathalie Marcotte, and Daniel Brunel. "Self-templating amphiphilic polysiloxanes to design nanostructured silica-based architectures." Chemical Communications 49, no. 45 (2013): 5168. http://dx.doi.org/10.1039/c3cc41943f.

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19

Chen, Jenise B., Hanie Yousefi, Carine R. Nemr, Surath Gomis, Randy Atwal, Mahmoud Labib, Edward Sargent, and Shana O. Kelley. "Nanostructured Architectures for Biomolecular Detection inside and outside the Cell." Advanced Functional Materials 30, no. 37 (December 3, 2019): 1907701. http://dx.doi.org/10.1002/adfm.201907701.

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20

Haag, Jacob M., Gyanaranjan Pattanaik, and Michael F. Durstock. "Nanostructured 3D Electrode Architectures for High-Rate Li-Ion Batteries." Advanced Materials 25, no. 23 (May 6, 2013): 3238–43. http://dx.doi.org/10.1002/adma.201205079.

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21

Popescu, Simona, Maria-Elena Zarif, Cristina Dumitriu, Camelia Ungureanu, and Cristian Pirvu. "Silk Fibroin-Based Hybrid Nanostructured Coatings for Titanium Implantable Surfaces Modification." Coatings 10, no. 6 (May 28, 2020): 518. http://dx.doi.org/10.3390/coatings10060518.

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This study proposes the development of new architectures that combine nanostructured titanium surface and biodegradable polymers as a promising approach to achieve a better performance after bioactive agent incorporation. The silk fibroin protein that was extracted from silkworm Bombyx mori cocoons is important due to the remarkable characteristics, such as biocompatibility, good mechanical properties, adjustable degradation and drug stabilizing capabilities. The titanium substrate was firstly nanostructurated with TiO2 nanotubes and then coated with silk fibroin using electrospinning and electrochemical deposition. The deposited silk film ability to become a bioactive implant coating with antibacterial properties after the encapsulation of the active agents such as CeO2 was investigated. Important features of the new implant coating were analysed: surface properties, electrochemical stability in physiological simulated electrolytes, and antibacterial action against Escherichia coli. The obtained results indicate that silk fibroin bioactive layers are a potential candidate for regenerative medicine.

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22

Ku, Kang Hee. "Responsive Nanostructured Polymer Particles." Polymers 13, no. 2 (January 15, 2021): 273. http://dx.doi.org/10.3390/polym13020273.

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Responsive polymer particles with switchable properties are of great importance for designing smart materials in various applications. Recently, the self-assembly of block copolymers (BCPs) and polymer blends within evaporative emulsions has led to advances in the shape-controlled synthesis of polymer particles. Despite extensive recent progress on BCP particles, the responsive shape tuning of BCP particles and their applications have received little attention. This review provides a brief overview of recent approaches to developing non-spherical polymer particles from soft evaporative emulsions based on the physical principles affecting both particle shape and inner structure. Special attention is paid to the stimuli-responsive, shape-changing nanostructured polymer particles, i.e., design of polymers and surfactant pairs, detailed experimental results, and their applications, including the state-of-the-art progress in this field. Finally, the perspectives on current challenges and future directions in this research field are presented, including the development of surfactants with higher reversibility to multiple stimuli and polymers with unique structural functionality, and diversification of polymer architectures.

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23

McDonald, Calum, Chengsheng Ni, Paul Maguire, Paul Connor, John Irvine, Davide Mariotti, and Vladimir Svrcek. "Nanostructured Perovskite Solar Cells." Nanomaterials 9, no. 10 (October 18, 2019): 1481. http://dx.doi.org/10.3390/nano9101481.

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Over the past decade, lead halide perovskites have emerged as one of the leading photovoltaic materials due to their long carrier lifetimes, high absorption coefficients, high tolerance to defects, and facile processing methods. With a bandgap of ~1.6 eV, lead halide perovskite solar cells have achieved power conversion efficiencies in excess of 25%. Despite this, poor material stability along with lead contamination remains a significant barrier to commercialization. Recently, low-dimensional perovskites, where at least one of the structural dimensions is measured on the nanoscale, have demonstrated significantly higher stabilities, and although their power conversion efficiencies are slightly lower, these materials also open up the possibility of quantum-confinement effects such as carrier multiplication. Furthermore, both bulk perovskites and low-dimensional perovskites have been demonstrated to form hybrids with silicon nanocrystals, where numerous device architectures can be exploited to improve efficiency. In this review, we provide an overview of perovskite solar cells, and report the current progress in nanoscale perovskites, such as low-dimensional perovskites, perovskite quantum dots, and perovskite-nanocrystal hybrid solar cells.

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24

Sun, Peng. "Gas Sensors Based on Oxide Semiconductors with Porous Nanostructures." Proceedings 14, no. 1 (June 19, 2019): 13. http://dx.doi.org/10.3390/proceedings2019014013.

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Gas sensor as a device composed of sensing material coupled with signal transducer, has been acknowledged as an analytical tool for detection and quantification of inflammable, explosive or toxic gases. The gas sensors based on nanostructured oxide semiconductor endowed with excellent sensing properties have exhibited great potential application in the fields of environmental monitoring, resource exploration, medical welfare, etc. It is well known that the sensing mechanism of sensor employing oxide semiconductors is mainly that the interactions between the surface adsorbed oxygen species and target gases lead to a change in the electrical conductivity. Therefore, the gas sensing properties of oxide semiconductors are closely related with their composition, crystalline size, and microstructure. In this regard, design and preparation of oxides with novel architectures will be increasingly important in the construction of high performance gas sensors. Due to high specific surface area, low density, and good surface permeability, porous nanostructures oxide semiconductor sensing materials have attracted growing interest in recent years. In our work, we successfully prepared various porous nanostructures oxides and their composites to the construction of high performances gas sensors with enhanced sensitivity, selectivity, as well as lowered detection limit. The subsequent gas sensing measurements explicitly revealed that these oxides and composites manifested superior sensing behaviors (like much higher sensitivity and faster response speed), which can be ascribed to the porous architectures and the synergistic effects.

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25

CRESPILHO, F., M. GHICA, C. GOUVEIACARIDADE, O. OLIVEIRAJR, and C. BRETT. "Enzyme immobilisation on electroactive nanostructured membranes (ENM): Optimised architectures for biosensing." Talanta 76, no. 4 (August 15, 2008): 922–28. http://dx.doi.org/10.1016/j.talanta.2008.04.054.

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26

Hua-Feng, Pang. "Biuret-assisted formation of nanostructured In2O3 architectures and their photoluminescence properties." Journal of Luminescence 182 (February 2017): 8–14. http://dx.doi.org/10.1016/j.jlumin.2016.10.014.

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27

Wang, Zhenming, Kefeng Wang, Xiong Lu, Chen Li, Lu Han, Chaoming Xie, Yaling Liu, Shuxin Qu, and Guanming Zhen. "Nanostructured Architectures by Assembling Polysaccharide-Coated BSA Nanoparticles for Biomedical Application." Advanced Healthcare Materials 4, no. 6 (February 5, 2015): 927–37. http://dx.doi.org/10.1002/adhm.201400684.

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28

Gibert-Roca, Martí, Pau Molet, Agustín Mihi, and Mariano Campoy-Quiles. "Near infrared organic photodetectors based on enhanced charge transfer state absorption by photonic architectures." Journal of Materials Chemistry C 8, no. 28 (2020): 9688–96. http://dx.doi.org/10.1039/d0tc02295k.

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Solution processed organic photodetectors with a nanostructured active layer in the shape of a photonic crystal exhibit an improved NIR response, below the band gap of the active layer materials, that can be tuned by varying the lattice parameter.

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29

Andrle, Anna, Philipp Hönicke, Grzegorz Gwalt, Philipp-Immanuel Schneider, Yves Kayser, Frank Siewert, and Victor Soltwisch. "Shape- and Element-Sensitive Reconstruction of Periodic Nanostructures with Grazing Incidence X-ray Fluorescence Analysis and Machine Learning." Nanomaterials 11, no. 7 (June 23, 2021): 1647. http://dx.doi.org/10.3390/nano11071647.

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The characterization of nanostructured surfaces with sensitivity in the sub-nm range is of high importance for the development of current and next-generation integrated electronic circuits. Modern transistor architectures for, e.g., FinFETs are realized by lithographic fabrication of complex, well-ordered nanostructures. Recently, a novel characterization technique based on X-ray fluorescence measurements in grazing incidence geometry was proposed for such applications. This technique uses the X-ray standing wave field, arising from an interference between incident and the reflected radiation, as a nanoscale sensor for the dimensional and compositional parameters of the nanostructure. The element sensitivity of the X-ray fluorescence technique allows for a reconstruction of the spatial element distribution using a finite element method. Due to a high computational time, intelligent optimization methods employing machine learning algorithms are essential for timely provision of results. Here, a sampling of the probability distributions by Bayesian optimization is not only fast, but it also provides an initial estimate of the parameter uncertainties and sensitivities. The high sensitivity of the method requires a precise knowledge of the material parameters in the modeling of the dimensional shape provided that some physical properties of the material are known or determined beforehand. The unknown optical constants were extracted from an unstructured but otherwise identical layer system by means of soft X-ray reflectometry. The spatial distribution profiles of the different elements contained in the grating structure were compared to scanning electron and atomic force microscopy and the influence of carbon surface contamination on the modeling results were discussed. This novel approach enables the element sensitive and destruction-free characterization of nanostructures made of silicon nitride and silicon oxide with sub-nm resolution.

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Hadden, Matthew, David Martinez-Martin, Ken-Tye Yong, Yogambha Ramaswamy, and Gurvinder Singh. "Recent Advancements in the Fabrication of Functional Nanoporous Materials and Their Biomedical Applications." Materials 15, no. 6 (March 13, 2022): 2111. http://dx.doi.org/10.3390/ma15062111.

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Functional nanoporous materials are categorized as an important class of nanostructured materials because of their tunable porosity and pore geometry (size, shape, and distribution) and their unique chemical and physical properties as compared with other nanostructures and bulk counterparts. Progress in developing a broad spectrum of nanoporous materials has accelerated their use for extensive applications in catalysis, sensing, separation, and environmental, energy, and biomedical areas. The purpose of this review is to provide recent advances in synthesis strategies for designing ordered or hierarchical nanoporous materials of tunable porosity and complex architectures. Furthermore, we briefly highlight working principles, potential pitfalls, experimental challenges, and limitations associated with nanoporous material fabrication strategies. Finally, we give a forward look at how digitally controlled additive manufacturing may overcome existing obstacles to guide the design and development of next-generation nanoporous materials with predefined properties for industrial manufacturing and applications.

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Kumar, Sarode Krishna, Sourav Ghosh, Sairam K. Malladi, Jagjit Nanda, and Surendra K. Martha. "Nanostructured Silicon–Carbon 3D Electrode Architectures for High-Performance Lithium-Ion Batteries." ACS Omega 3, no. 8 (August 21, 2018): 9598–606. http://dx.doi.org/10.1021/acsomega.8b00924.

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Radhakrishnan, Thulasi, and N. Sandhyarani. "Pt-Ag nanostructured 3D architectures: A tunable catalyst for methanol oxidation reaction." Electrochimica Acta 298 (March 2019): 835–43. http://dx.doi.org/10.1016/j.electacta.2018.12.151.

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Viani, Lucas, Lars Poulsen Tolbod, Mikael Jazdzyk, Greta Patrinoiu, Fabrizio Cordella, Andrea Mura, Giovanni Bongiovanni, et al. "Spatial Control of 3D Energy Transfer in Supramolecular Nanostructured Host−Guest Architectures." Journal of Physical Chemistry B 113, no. 31 (August 6, 2009): 10566–70. http://dx.doi.org/10.1021/jp904415z.

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Mihai, Marcela, Iuliana Stoica, and Simona Schwarz. "pH-sensitive nanostructured architectures based on synthetic and/or natural weak polyelectrolytes." Colloid and Polymer Science 289, no. 12 (June 11, 2011): 1387–96. http://dx.doi.org/10.1007/s00396-011-2462-4.

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35

Nisticò, Roberto. "Block copolymers for designing nanostructured porous coatings." Beilstein Journal of Nanotechnology 9 (August 29, 2018): 2332–44. http://dx.doi.org/10.3762/bjnano.9.218.

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Highly ordered porous coatings find applications in many fields, such as nanotechnology, microfluidics and nanofluidics, membrane separation, and sensing. In recent years, there has been great interest regarding the synthesis of isoporous and well-ordered (in)organic coatings for the production of highly selective functional membranes. Among the different strategies that have been proposed to date for preparing these porous thin coatings, one simple route involves the use of self-assembled amphiphilic block copolymers either as the porogen (acting as sacrificial templating agents for the production of inorganic architectures) or as a source of the porogen (by self-assembly for the production of polymeric substrates). Therefore, an extended discussion around the exploitation of block copolymers is proposed here in this review, using polystyrene-block-polyethylene oxide (PS-b-PEO) as the model substrate, and critical points are highlighted.

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Puglisi, R. A. "Towards Ordered Silicon Nanostructures through Self-Assembling Mechanisms and Processes." Journal of Nanomaterials 2015 (2015): 1–20. http://dx.doi.org/10.1155/2015/586458.

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The design and development of innovative architectures for memory storage and energy conversion devices are at the forefront of current research efforts driving us towards a sustainable future. However, issues related to the cost, efficiency, and reliability of current technologies are still severely limiting their overtake of the standard designs. The use of ordered nanostructured silicon is expected to overcome these limitations and push the advancement of the alternative technologies. Specifically, self-assembling of block copolymers has been recognized as a promising and cost-effective approach to organize silicon nanostructures. This work reviews some of the most important findings on block copolymer self-assembling and complements those with the results of new experimental studies. First of all, a quantitative analysis is presented on the ordering and fluctuations expected in the synthesis of silicon nanostructures by using standard synthesis methods like chemical vapour deposition. Then the effects of the several parameters guiding the ordering mechanisms in the block copolymer systems, such as film thickness, molecular weight, annealing conditions, solvent, and substrate topography are discussed. Finally, as a proof of concept, an in-house developed example application to solar cells is presented, based on silicon nanostructures resulting from self-assembling of block copolymers.

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Jalil, Abdur Rehman, Peter Schüffelgen, Helen Valencia, Michael Schleenvoigt, Christoph Ringkamp, Gregor Mussler, Martina Luysberg, Joachim Mayer, and Detlev Grützmacher. "Selective Area Epitaxy of Quasi-1-Dimensional Topological Nanostructures and Networks." Nanomaterials 13, no. 2 (January 15, 2023): 354. http://dx.doi.org/10.3390/nano13020354.

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Quasi-one-dimensional (1D) topological insulators hold the potential of forming the basis of novel devices in spintronics and quantum computing. While exposure to ambient conditions and conventional fabrication processes are an obstacle to their technological integration, ultra-high vacuum lithography techniques, such as selective area epitaxy (SAE), provide all the necessary ingredients for their refinement into scalable device architectures. In this work, high-quality SAE of quasi-1D topological insulators on templated Si substrates is demonstrated. After identifying the narrow temperature window for selectivity, the flexibility and scalability of this approach is revealed. Compared to planar growth of macroscopic thin films, selectively grown regions are observed to experience enhanced growth rates in the nanostructured templates. Based on these results, a growth model is deduced, which relates device geometry to effective growth rates. After validating the model experimentally for various three-dimensional topological insulators (3D TIs), the crystal quality of selectively grown nanostructures is optimized by tuning the effective growth rates to 5 nm/h. The high quality of selectively grown nanostructures is confirmed through detailed structural characterization via atomically resolved scanning transmission electron microscopy (STEM).

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Sun, Jing, Xi Jiang, Reidar Lund, Kenneth H. Downing, Nitash P. Balsara, and Ronald N. Zuckermann. "Self-assembly of crystalline nanotubes from monodisperse amphiphilic diblock copolypeptoid tiles." Proceedings of the National Academy of Sciences 113, no. 15 (March 28, 2016): 3954–59. http://dx.doi.org/10.1073/pnas.1517169113.

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The folding and assembly of sequence-defined polymers into precisely ordered nanostructures promises a class of well-defined biomimetic architectures with specific function. Amphiphilic diblock copolymers are known to self-assemble in water to form a variety of nanostructured morphologies including spheres, disks, cylinders, and vesicles. In all of these cases, the predominant driving force for assembly is the formation of a hydrophobic core that excludes water, whereas the hydrophilic blocks are solvated and extend into the aqueous phase. However, such polymer systems typically have broad molar mass distributions and lack the purity and sequence-defined structure often associated with biologically derived polymers. Here, we demonstrate that purified, monodisperse amphiphilic diblock copolypeptoids, with chemically distinct domains that are congruent in size and shape, can behave like molecular tile units that spontaneously assemble into hollow, crystalline nanotubes in water. The nanotubes consist of stacked, porous crystalline rings, and are held together primarily by side-chain van der Waals interactions. The peptoid nanotubes form without a central hydrophobic core, chirality, a hydrogen bond network, and electrostatic or π–π interactions. These results demonstrate the remarkable structure-directing influence of n-alkane and ethyleneoxy side chains in polymer self-assembly. More broadly, this work suggests that flexible, low–molecular-weight sequence-defined polymers can serve as molecular tile units that can assemble into precision supramolecular architectures.

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Wu, Huimeng, Feng Bai, Zaicheng Sun, Raid E. Haddad, Daniel M. Boye, Zhongwu Wang, Jian Yu Huang, and Hongyou Fan. "Nanostructured Gold Architectures Formed through High Pressure-Driven Sintering of Spherical Nanoparticle Arrays." Journal of the American Chemical Society 132, no. 37 (September 22, 2010): 12826–28. http://dx.doi.org/10.1021/ja105255d.

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Kulkarni, Mohit Rameshchandra, Rohit Abraham John, Mayank Rajput, Naveen Tiwari, Natalia Yantara, Anh Chien Nguyen, and Nripan Mathews. "Transparent Flexible Multifunctional Nanostructured Architectures for Non-optical Readout, Proximity, and Pressure Sensing." ACS Applied Materials & Interfaces 9, no. 17 (April 19, 2017): 15015–21. http://dx.doi.org/10.1021/acsami.6b16840.

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Gunkel-Grabole, Gesine, Cornelia Palivan, and Wolfgang Meier. "Nanostructured Surfaces through Immobilization of Self-Assembled Polymer Architectures Using Thiol-Ene Chemistry." Macromolecular Materials and Engineering 302, no. 4 (January 20, 2017): 1600363. http://dx.doi.org/10.1002/mame.201600363.

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Yu, Xiujun, Hongxia Lu, Qi Li, Yunlong Zhao, Liwei Zhang, Bingbing Fan, Deliang Chen, Hailong Wang, Hongliang Xu, and Rui Zhang. "Hydrothermal synthesis and characterization of micro/nanostructured ZnSn(OH)6/ZnO composite architectures." Crystal Research and Technology 46, no. 11 (August 26, 2011): 1175–80. http://dx.doi.org/10.1002/crat.201100355.

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Dehghan Banadaki, Arash, and Amir Kajbafvala. "Recent Advances in Facile Synthesis of Bimetallic Nanostructures: An Overview." Journal of Nanomaterials 2014 (2014): 1–28. http://dx.doi.org/10.1155/2014/985948.

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Nobel metal nanomaterials with interesting physical and chemical properties are ideal building blocks for engineering and tailoring nanoscale structures for specific technological applications. Bimetallic nanomaterials consisting of magnetic metals and noble metals have attracted much interest for their promising potentials in many fields including magnetic sensors, catalysts, optical detection, and biomedical applications. Particularly, effective control of the size, shape, architecture, and compositional microstructure of metal nanomaterials plays an important role in enhancing their functionality and application potentials, for example, in fuel cells, optical and biomedical sensing. This paper focuses on recent advances in controllable synthesis of bimetallic nanostructured materials. Recent contributions in controllable synthesis of bimetallic nanomaterials with different architectures including nanoparticles, nanowires, nanosheets, or nanotubes and their assemblies are presented in this paper. A wide range of facile synthesis methods are covered herein with high emphasis on wet chemical methods owing to their facility of use, efficacy, and smaller environmental footprint.

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Prosa, Mario, Margherita Bolognesi, Lucia Fornasari, Gerardo Grasso, Laura Lopez-Sanchez, Franco Marabelli, and Stefano Toffanin. "Nanostructured Organic/Hybrid Materials and Components in Miniaturized Optical and Chemical Sensors." Nanomaterials 10, no. 3 (March 7, 2020): 480. http://dx.doi.org/10.3390/nano10030480.

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In the last decade, biochemical sensors have brought a disruptive breakthrough in analytical chemistry and microbiology due the advent of technologically advanced systems conceived to respond to specific applications. From the design of a multitude of different detection modalities, several classes of sensor have been developed over the years. However, to date they have been hardly used in point-of-care or in-field applications, where cost and portability are of primary concern. In the present review we report on the use of nanostructured organic and hybrid compounds in optoelectronic, electrochemical and plasmonic components as constituting elements of miniaturized and easy-to-integrate biochemical sensors. We show how the targeted design, synthesis and nanostructuring of organic and hybrid materials have enabled enormous progress not only in terms of modulation and optimization of the sensor capabilities and performance when used as active materials, but also in the architecture of the detection schemes when used as structural/packing components. With a particular focus on optoelectronic, chemical and plasmonic components for sensing, we highlight that the new concept of having highly-integrated architectures through a system-engineering approach may enable the full expression of the potential of the sensing systems in real-setting applications in terms of fast-response, high sensitivity and multiplexity at low-cost and ease of portability.

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Dai, Sheng. "(Invited) Self-Assembly Synthesis and Interfacial Control of Electrode Architectures." ECS Meeting Abstracts MA2022-02, no. 1 (October 9, 2022): 24. http://dx.doi.org/10.1149/ma2022-02124mtgabs.

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Enhancement in electrochemical energy storage resides in tailored nanotextures resulting from making electrode materials with controlled compositions and structures. The complex interplay of solvent and solute structures and dynamics at charged interfaces, the transport of electrolyte ions into and out of pores, solvation/desolvation processes occurring in pores approaching bare-ion dimensions, and formation of interfaces via chemical reactions are all important parameters. Herein, several self-assembly synthesis methods for carbon and oxide composites as electrode materials for energy storage will be discussed. The objective of this talk is to demonstrate that nanostructured carbons and oxides derived from soft-template synthesis not only entail a high storage capacity but also, most importantly, can be made to have a significantly enhanced electronic & ionic conductivities and storage capacities. These enhanced transport properties in electrode architectures are the key to providing a high-rate capability for the corresponding energy storage systems.

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Nagaraj, Mamatha. "Liquid Crystals Templating." Crystals 10, no. 8 (July 27, 2020): 648. http://dx.doi.org/10.3390/cryst10080648.

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Liquid crystal templating is a versatile technique to create novel organic and inorganic materials with nanoscale features. It exploits the self-assembled architectures of liquid crystal phases as scaffolds. This article focuses on some of the key developments in lyotropic and thermotropic liquid crystals templating. The procedures that were employed to create templated structures and the applications of these novel materials in various fields including mesoporous membranes, organic electronics, the synthesis of nanostructured materials and photonics, are described.

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KNOLL, WOLFGANG, MING-YONG HAN, XINHENG LI, JOSE-LUIS HERNANDEZ-LOPEZ, ABHIJIT MANNA, KLAUS MÜLLEN, FUMIO NAKAMURA, et al. "NANOSCOPIC BUILDING BLOCKS FROM POLYMERS, METALS, AND SEMICONDUCTORS FOR HYBRID ARCHITECTURES." Journal of Nonlinear Optical Physics & Materials 13, no. 02 (June 2004): 229–41. http://dx.doi.org/10.1142/s0218863504001815.

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This paper describes some of our efforts in the area of nanostructured thin film architectures. The resulting interfacial hybrid assemblies are built from (1) organic/polymeric objects based on dendrimer systems, from (2) surface-functionalized Au nanoparticles, and (3) from a variety of semiconducting quantum dots. Dendrimers as polymeric building blocks with a strictly monodisperse particle size distribution in the nanometer range can be functionalized in the core, the scaffold, or at the periphery, thus offering interesting hybrid materials for a wide range of applications. The combination with Au clusters and their local surface plasmon resonances suggests new strategies for optoelectronic devices or unconventional bio-sensor platforms. The possibility of tuning the luminescent properties of semiconducting nanoparticles by size or compositional bandgap engineering complements the assembly kit with building blocks for supramolecular thin film nanocomposite materials.

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Liu, Yali, Pengfei Zhang, Junmin Liu, Tao Wang, Qisheng Huo, Li Yang, Lei Sun, Zhen-An Qiao, and Sheng Dai. "Gold Cluster–CeO2 Nanostructured Hybrid Architectures as Catalysts for Selective Oxidation of Inert Hydrocarbons." Chemistry of Materials 30, no. 23 (November 15, 2018): 8579–86. http://dx.doi.org/10.1021/acs.chemmater.8b03624.

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Shen, Liming, Ningzhong Bao, Kazumichi Yanagisawa, Arunava Gupta, Kazunari Domen, and Craig A. Grimes. "Controlled Synthesis and Assembly of Nanostructured ZnO Architectures by a Solvothermal Soft Chemistry Process." Crystal Growth & Design 7, no. 12 (December 2007): 2742–48. http://dx.doi.org/10.1021/cg0705409.

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Poudineh, Mahla, Zongjie Wang, Mahmoud Labib, Moloud Ahmadi, Libing Zhang, Jagotamoy Das, Sharif Ahmed, Stephane Angers, and Shana O. Kelley. "Three-Dimensional Nanostructured Architectures Enable Efficient Neural Differentiation of Mesenchymal Stem Cells via Mechanotransduction." Nano Letters 18, no. 11 (October 10, 2018): 7188–93. http://dx.doi.org/10.1021/acs.nanolett.8b03313.

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