Готові списки джерел за темами / NICKEL NANO-PARTICLES

Добірка наукової літератури з теми "NICKEL NANO-PARTICLES"

Автор: Grafiati
Опубліковано: 11 вересня 2023

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Статті в журналах з теми "NICKEL NANO-PARTICLES"

1

Thanikachalam, J., P. Nagaraj, and S. Karthikeyan. "Preparation and characterization of nano magnetic fluid for automotive applications." Archives of Materials Science and Engineering 2, no. 96 (April 1, 2019): 49–55. http://dx.doi.org/10.5604/01.3001.0013.2384.

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Анотація:
Purpose: of this paper is to prepare a nano magnetic fluids with nano additives to have the combined characteristics of high yield stress and better magnetic properties for smart vehicles. This study focuses on increasing the sedimentation time of the fluid using suitable nano additive nickel along with graphene as fillers. Design/methodology/approach: Magnetic nano sized nickel particle based electro- magneto-rheological fluid was prepared and graphene nanoparticle with thickness less than 10nm was introduced as an additive to reduce its sedimentation. This added plate like graphene acts as filler which seals the interfaces of nickel particles and thereby it improves the resistance to sedimentation. Triton X 100 was added as the surfactant for the fluid to reduce the agglomeration of the particles. Findings: Morphology of pure nickel and graphene were examined using scanning electron microscopy (SEM) images. Research limitations/implications: The important limitations is that freely dispersed micron sized iron particles could settle over a period of time, in the form of cakes at the bottommost, and it is tedious to recuperate as dispersed phase. In this investigation, nano sized nickel particles were used as additive to reduce the sedimentation of micron sized iron particles so that, the mixture is homogeneous for extended period of time. In future, addition of different types composite additives in the magnetorheological fluid could be made for the better sedimentation control. Practical implications: The sedimentation problem is one of the major drawback in the smart fluids, which can be eliminated by adding nano particles. For conventional fluid, the complete sedimentation will occur in 2 hours while the improved nano magnetic fluid with additive has good resistance to settle the micron sized iron particle up to 10 hours. Originality/value: To prepare a low cost magnetorheological fluid with nano additives like nickel particles along with fillers as graphene nano particles. With this addition of nickel and inclusion of graphene, the sedimentation problem in magnetorheological fluids is significantly reduced. This magnetorheological fluids can be used in brakes and dampers of automobiles.
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2

Thanikachalam, J., P. Nagaraj, and S. Karthikeyan. "Preparation and characterization of nano magnetic fluid for automotive applications." Archives of Materials Science and Engineering 2, no. 95 (February 1, 2019): 67–73. http://dx.doi.org/10.5604/01.3001.0013.1732.

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Анотація:
Purpose: of this paper is to prepare a nano magnetic fluids with nano additives to have the combined characteristics of high yield stress and better magnetic properties for smart vehicles. This study focuses on increasing the sedimentation time of the fluid using suitable nano additive nickel along with graphene as fillers. Design/methodology/approach: Magnetic nano sized nickel particle based electro- magneto-rheological fluid was prepared and graphene nanoparticle with thickness less than 10nm was introduced as an additive to reduce its sedimentation. This added plate like graphene acts as filler which seals the interfaces of nickel particles and thereby it improves the resistance to sedimentation. Triton X 100 was added as the surfactant for the fluid to reduce the agglomeration of the particles. Findings: Morphology of pure nickel and graphene were examined using scanning electron microscopy (SEM) images. Research limitations/implications: The important limitations is that freely dispersed micron sized iron particles could settle over a period of time, in the form of cakes at the bottommost, and it is tedious to recuperate as dispersed phase. In this investigation, nano sized nickel particles were used as additive to reduce the sedimentation of micron sized iron particles so that, the mixture is homogeneous for extended period of time. In future, addition of different types composite additives in the magnetorheological fluid could be made for the better sedimentation control. Practical implications: The sedimentation problem is one of the major drawback in the smart fluids, which can be eliminated by adding nano particles. For conventional fluid, the complete sedimentation will occur in 2 hours while the improved nano magnetic fluid with additive has good resistance to settle the micron sized iron particle up to 10 hours. Originality/value: To prepare a low cost magnetorheological fluid with nano additives like nickel particles along with fillers as graphene nano particles. With this addition of nickel and inclusion of graphene, the sedimentation problem in magnetorheological fluids is significantly reduced. This magnetorheological fluids can be used in brakes and dampers of automobiles.
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3

Kim, Shin Dong, Soo Jin Park, and Young Seak Lee. "Nickel Decoration on Multi-Walled Carbon Nanotubes Using Multi-Step Impregnation Method." Solid State Phenomena 135 (February 2008): 77–80. http://dx.doi.org/10.4028/www.scientific.net/ssp.135.77.

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Анотація:
In this work, nano-sized nickel particles were dispersed on multi-walled carbon nanotubes using multi-step impregnation method, to use them as hydrogen storage media. The dispersion degree of nickel particles on multi-walled carbon nanotubes is inversely proportional to the nickel concentration of solution. It was observed that the low nickel concentration is efficient to decorate nickel particles into the inner space. Multi-step impregnation method of MWNTs through several times with low nickel concentration is more efficient to manufacture Ni-MWNTs having well dispersed metallic nickel particles.
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4

Leela-adisorn, Uraiwan, Takuya Matsunaga, Seong Min Choi, Sawao Honda, and Hideo Awaji. "Alumina-Based Nanocomposites Fabricated by a Novel Soaking Method." Key Engineering Materials 317-318 (August 2006): 607–10. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.607.

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Nickel dispersed alumina matrix nanocomposites were fabricated using a novel soaking method. Secondary particles were introduced into the nano-pores of a porous matrix grains by a soaking method, such that γ-alumina powder was soaked in nickel nitrate solution under vacuum. During pre-calcination, nickel oxide particles were created inside of the nano-pores of γ-alumina. The alumina powders were then reduced under hydrogen atmosphere to obtain nano-sized metallic nickel embedded in γ-alumina grains. The alumina-nickel composite powders were sintered by pulse electric current sintering (PECS) technique with α-alumina seeds. The maximum strength of the alumina-nickel nanocomposites was 984 MPa after sintering at 1,450 °C with α-alumina seeds, where the specimen size was 2210 mm3. The maximum fracture toughness was 5.5 MPa·m1/2 after sintering at 1,350 °C with seeds measured by the single edge V-notched beam (SEVNB) method.
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5

Haque, K. M. A., and M. S. Hussain. "Synthesis of Nano-sized Nickel Particles by a Bottom-up Approach in the Presence of an Anionic Surfactant and a Cationic Polymer." Journal of Scientific Research 2, no. 2 (April 26, 2010): 313–21. http://dx.doi.org/10.3329/jsr.v2i2.3261.

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Nano-sized nickel particles have been synthesized by a bottom-up approach, using hydrazine as the reducing agent in the presence of an anionic surfactant - sodium-dodecyl sulphate (SDS). The effect of adding a nonionic polymer -polyvinylpyrrolidone (PVP) with an anionic surfactant has been studied at two different temperatures; the rate of reduction increased as the reaction temperature was increased from 60 to 100°C. These nano-aggregated nickel particles were characterized by using SEM with EDX facilities and TEM. TEM characterization showed the presence of spherical Ni particles as fine as 10nm in diameter. However, the SEM images showed a very spiky morphology, very small spherical shaped objects were clearly observed within these spiky structures. The combination of SDS/PVP reaction produced nano-sized nickel particles which were much finer than the reactions where SDS was used on its own. PVP has shown some dispersion power, and was found to be capable of preventing nickel particles from gradual agglomeration. Keywords: Bottom-up; SDS; PVP; 10 nm. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. DOI:10.3329/jsr.v2i2.3261 J. Sci. Res. 2 (2), 313-321 (2010)
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6

Han, Hui, Qi Heri Ma, Li Lv, and Xiao Jing Wang. "Preparation and Grain Growth Kinetic of Nickel Oxide Nano-Particles." Materials Science Forum 694 (July 2011): 133–36. http://dx.doi.org/10.4028/www.scientific.net/msf.694.133.

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Nickel oxide nano-particles were prepared successfully by thermal decomposition of the β-Ni(OH)2 in this work. The precursor β-Ni(OH)2 was obtained by the chemical precipitation reaction of Ni(NO3)2 and KOH at near room temperature. The grain growth kinetic of nano-sized nickel oxide for thermal treatment process was studied by means of isothermal and isochronal annealing. The results showed the precursor β-Ni(OH)2 is spindle alike shape, which can transform entirely into cubic NiO nano-particles when calcinated at temperature higher than 280°C. The NiO nano-particles grew up with the increasing of the calcinating temperature and the prolonging of the calcinatiing time. Moreover, we found that to tune the annealing temperature is more available for size controlling than to vary the annealing time. The grain growth kinetic of NiO nano-particles is found to follow the equation D7 = 1.946×1017•t•exp(-1.466×103/RT), where the grain growth exponent and an activation energy are n=7 and Ea=146.56KJ/mol, respectively.
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7

Zhang, Cun Lai, and Zhong Bao Shao. "Production of Nano NiO Particle with Chemical Precipitation Method and their Characteristics." Applied Mechanics and Materials 217-219 (November 2012): 245–51. http://dx.doi.org/10.4028/www.scientific.net/amm.217-219.245.

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Nano nickel oxide (NiO) particles were synthesized by a homogeneous precipitation method using NiCl2 as starting material and CO(NH2)2 as precipitant. Proper amount of NP-10 and appropriate organic solvent were added in the preparation process as dispersant. The chemical composition and properties were characterized by means of transmission electron microscope, X-ray diffractometer, and thermo gravimetry-differential thermal analyzer. The effects of reactant ratio, reaction temperature, reaction time, surfactant concentration, organic modifier concentration, agglomeration temperature as well as other reaction conditions on the appearances, size and dispersity degree of nano particles were investigated. The experiment results show that homogenous nano NiO particles were obtained by reacting nickel oxide and urea with a weight ration of 1:5 for 6 h at 80°C, then calcining for 2 h at 300°C. Adding surfactant NP-10 and organic solvent butanol to reaction system increases the dispersity and decreases the particle size of nano nickel oxide.
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8

Barkule, Ram S., D. V. Kurmude, A. V. Raut, N. N. Waghule, K. M. Jadhav, and D. R. Shengule. "Structural and Electrical Conductivity Studies in Nickel Ferrite Nano-Particles." Solid State Phenomena 209 (November 2013): 177–81. http://dx.doi.org/10.4028/www.scientific.net/ssp.209.177.

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Abstract: The magnetic nano-particles of nickel ferrite were synthesized successfully by sol-gel auto-combustion method using high purity metal nitrates and citric acid as chelating agent. The as prepared powder of nickel ferrite was sintered at 5500C for 5 hr to obtain good crystalline phase and was used for further study. The X-ray diffraction technique was employed to confirm the single phase formation of nickel ferrite nano-particles. The X-ray diffraction pattern shows the Bragg’s peak which belongs to cubic spinel structure. The values of lattice constant, X-ray density, oxygen parameter and radii of tetrahedral and octahedral sites were calculated from XRD data. The average crystallite size was estimated using Scherrer’s formula and found to be 6 nm. The temperature dependence of the electrical conductivity plot shows the kink, which can be attributed to ferromagnetic-paramagnetic transition. The activation energy obtained from resistivity plots in paramagnetic region is found to be more than that in ferrimagnetic region. The conduction mechanism in these nickel ferrite nano-particles has been discussed on the basis of hopping of electrons.
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9

Cihlářová, Petra, Jiří Švejcar, and Vàclav Sklenička. "Microstructure and Mechanical Properties of Electrodeposited Nickel and its Particle-Reinforced Nanocomposite." Materials Science Forum 567-568 (December 2007): 205–8. http://dx.doi.org/10.4028/www.scientific.net/msf.567-568.205.

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Анотація:
There are two types of experimental material used – pure nickel and its nano-composite reinforced with nano-sized SiO2. These materials were produced by TU Clausthal, Germany. The results have shown that the creep resistance of the nickel nano-composite reinforced with nanosized SiO2 particles is higher in comparison with non-reinforced nickel. The mechanism responsible for creep behaviour is the dislocation creep at 293 K and at elevated temperatures the dislocation creep is controlled by grain boundary sliding.
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10

Yao, Y. D., Y. Y. Chen, M. F. Tai, D. H. Wang, and H. M. Lin. "Magnetic anisotropy effects in nano-cluster nickel particles." Materials Science and Engineering: A 217-218 (October 1996): 281–85. http://dx.doi.org/10.1016/s0921-5093(96)10326-9.

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Дисертації з теми "NICKEL NANO-PARTICLES"

1

Jao, Kuang-Yu, and 饒光宇. "NANO-NICKEL PARTICLES: SYNTHESIS, CHARACTERIZATION AND CATALYTIC HYDROGENATION." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/76200721127317623980.

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Анотація:
碩士
東海大學
化學系
93
The hydrogenation of cinnamaldehyde(CALD)、citronellal(CTN) and t,t,c-1,5,9-cyclododecatriene(CDT) has been studied using a fixed- bed, integral-flow reactor and a batch reactor. Pd/Si-MCM-48, Ni/Si-MCM-41, Ni( nano ), Ni( 325 mesh ) and Ni( 100 mesh ) were utilized as catalysts. These materials were characterized with XRD, particle size analysis, TEM, N2 adsorption, FT-IR, TPD of NH3 and TPR of H2. Ni/MCM-41 exhibits hexagonal structure with Ni aggregates of nanometer size and low Lewis acidity. The mean size of nano-Ni particles and that of Ni ( 325 mesh ) are 20 nm and 30 μm, respectively. However, Ni containing Si-MCM-41 has higher reduction temperature than nano-nickel particle. In the reaction of CALD over (X%)Pd/Si-MCM-48 catalysts, the catalytic activity enhances with the Pd content and the main product is hydrocinnamaldehyde. The Ni ( nano ) catalyst shows better catalytic activities in the hydrogenation of both CALD and CTN. Different reaction paths are observed for the CTN reaction using Ni/Si-MCM-41 and Ni particles that are attributed to the apparent difference of catalyst acidity. With Ni/Si-MCM-41, the major product is isopulegol (IPG) that is formed via isomerization of CTN on the catalyst Lewis acid sites. With Ni particles, successive hydrogenation yields citronellol (CTNOL). These catalysts were applied to the hydrogenation of CDT at 10 bar of H2 in a batch reactor using methylcyclohexane as the solvent. The system is free of diffusional limitation at 800 rpm, and good catalytic activity is attained at the reaction temperature of 50℃. The Ni( nano ) catalyst exhibits much better results than other catalysts.
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2

Wu, Wen-Shian, and 吳文獻. "Low Temperature Induced Crystallization of Amorphous Silicon Film by Nano Nickel Particles." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/71187833068262688104.

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Анотація:
碩士
國立屏東科技大學
機械工程系所
95
In this research, we use nano nickel particles mixed with alcohol to apply on the silicon substrate, along with a high temperature oven to lower the nano nickel particles’ temperature in order to obtain grain. Meanwhile, we change the different parameters, like the annealing temperature and times of a high temperature Muffle Furnace to measure the ultra structures of the surface of Silicon Film, element analysis, and the changes of poly-silicon, by using FE-SEM, XRD, and Ramna, respectively, for observing and recording, the particular effects of these factors. The consequence shows that in the annealing temperature of – 400℃, there was some poly-silicon grown in an hour; the growth rate is 10 times faster than using a furnace for annealing. In the same annealing time, the higher the temperature is, the faster the poly-silicon grows and gets smaller. In the same annealing temperature, the longer the time spent, the bigger the silicon crystalline grows.
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3

PARIDA, OM PRAKASH. "SYNTHESIS AND STUDIES OF POLYURETHANE BASED CONDUCTING ADHESIVES WITH ZINC AND NICKEL NANO-PARTICLES AS FILLERS." Thesis, 2016. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15217.

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The present work has been carried out with an objective to synthesize a PU based electrically conductive adhesive (ECA) using metallic fillers such as Zinc and Nickel. For the better dispersion of fillers in polymeric matrix, the filler used in the present studies were of nano-range. The solder that has dominated the present day electronic industry has many inherent demerits and drawbacks. It is associated with health hazards and bad environmental impacts due to presence of lead in it. To overcome these health hazards, the researchers have been exploring the field of ECAs to find a suitable replacement. The future of present day electronics industry depends upon the research and development work done in the field of conducting adhesive. Commonly used ECA is epoxy and filler based conducing adhesive. But the strength of epoxy substrate is less. Hence, we have tried to enhance the conductivity of polyurethane based adhesive. We have used metallic filler to enhance the conductivity of the PU based adhesives to develop ECA. Along with conductivity it is desirable to have good mechanical strength of the sample should be good. Thus, conductivity along with good mechanical strength of ECA that can have potential for the replacement of solder technology in future. In the present studies, we have used with zinc and nickel nano-particle as fillers with the polyurethane adhesive. The comparison of conductivity and mechanical strength of the adhesives using different fillers was done. It was observed that the conductivity of PU was enhanced with addition of metallic filler.
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4

Whalen, Casey Allen. "Dispersion and Characterization of Nickel Nanostrands in Thermoset and Thermoplastic Polymers." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10686.

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Nickel Nanostrands (NiNS) are nano-particles that are highly branched and have a high aspect ratio. These particles show promise as excellent additives to composites when electrical conductivity is desired. Unfortunately, there is very little research done on dispersing powdered NiNS in various polymer matrices. This thesis covers the research in dispersing NiNS in three separate polymer systems, and related composite processing and characterization. An aromatic polyimide (CP2) is first used as a thermoplastic matrix and attempts to incorporate NiNS via an in-situ processing technique concurrent with in-situ polymerization are detailed. Epoxy is then used as a representative thermoset where the NiNS are dispersed in the resin before a hardener is added. The last polymer tested is thermoplastic Polyvinylidene Fluoride (PVDF). NiNS are introduced to this polymer in a solution mixture. Once dispersed, the PVDF solution is heated until the solvent evaporates leaving a PVDF melt containing NiNS, which is subsequently cooled. Samples of all three polymer nano-composites are created and dispersion is observed with an optical microscope. Using DSC, DMA and dielectric spectroscopy, thermal, mechanical and electrical properties are measured and analyzed. Results for the CP2 nano-composites showed that during the cure phase, the NiNS settled to the bottom of the films resulting in a non-dispersed composite. This result highlighted the difference between NiNS and other more conventional nano-particles, namely that the NiNS are larger and heavier, therefore are not 'locked into' a dispersed state by the polymer chains. Several techniques were investigated for dispersing NiNS in the epoxy matrix. A method without solvent was shown to be the most effective and resulted in a well-dispersed nano-composite that showed increases in electrical conductivity and dielectric constant as NiNS concentration increases. Enhancement in storage modulus was observed above the composite's Tg as well. PVDF nano-composites also showed good dispersion and a general increase in electrical properties. Below Tg, storage modulus decreases at first before a slight recovery with increasing NiNS. Beyond Tg, the opposite effect is observed. FTIR measurements for the PVDF were also taken and showed no significant changes in the polymer morphology with additions of NINS.
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5

Greeshma, T. "Electric Stimuli as Instructive Cues to Guide Cellular Differentiation on Electrically Conductive Biomaterial Substrates in vitro." Thesis, 2015. http://etd.iisc.ac.in/handle/2005/3938.

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Directing differential cellular response by manipulating the physical characteristics of the material is regarded as a key challenge in biomaterial implant design and tissue engineering. In developing various biomaterials, the influence of substrate properties, like surface topography, stiffness and wettability on the cell functionality has been investigated widely. However, such study to probe into the influence of substrate conductivity on cell fate processes is rather limited. The need for such an understanding is based on the fact that specific tissues in the body are electrically active in nature, such as in brain, heart and skeletal muscle. These tissues make use of electrical conductivity as an effective cue for tissue homeostasis, development, regeneration and so on. Moreover, understanding the importance of underlying conductivity in basic biological processes is essential in developing electrically conductive biomaterials with the ability to simulate normal electrophysiology of the body by interfacing with bioelectric fields in cells and tissues. Electrical stimulation and charge conduction can regulate numerous intracellular signalling pathways, can interact with cytoskeleton proteins to modulate the morphology, increase protein synthesis and on the more can favor the ECM protein conformational changes. On these grounds, the present dissertation illustrates that persistent electrical activation influences the multipotency of hMSCs and acts like a promoter towards selective differentiation of hMSCs into neural/cardiomyogenic or osteogenic lineage. Besides, continual exposure to electric field stimulated conducting culture environments lead to growth arrest while enhancing differentiation. In total, this dissertation suggests the dominant role of conductivity in inducing my oblast differentiation and hMSc lineage commitment that involves EF stimulated in vitro culture conditions. Also, a knowledge base with qualitative and quantitative understanding of stem cells and their response to substrate physical properties and external field effect was developed through this comprehensive study. Such an improved understanding of the ability of hMSCs in sensing electrical conductivity may lead to the development of culture additives/conditions that better induce directed stem cell differentiation.
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6

Greeshma, T. "Electric Stimuli as Instructive Cues to Guide Cellular Differentiation on Electrically Conductive Biomaterial Substrates in vitro." Thesis, 2015. http://etd.iisc.ernet.in/2005/3938.

Повний текст джерела
Анотація:
Directing differential cellular response by manipulating the physical characteristics of the material is regarded as a key challenge in biomaterial implant design and tissue engineering. In developing various biomaterials, the influence of substrate properties, like surface topography, stiffness and wettability on the cell functionality has been investigated widely. However, such study to probe into the influence of substrate conductivity on cell fate processes is rather limited. The need for such an understanding is based on the fact that specific tissues in the body are electrically active in nature, such as in brain, heart and skeletal muscle. These tissues make use of electrical conductivity as an effective cue for tissue homeostasis, development, regeneration and so on. Moreover, understanding the importance of underlying conductivity in basic biological processes is essential in developing electrically conductive biomaterials with the ability to simulate normal electrophysiology of the body by interfacing with bioelectric fields in cells and tissues. Electrical stimulation and charge conduction can regulate numerous intracellular signalling pathways, can interact with cytoskeleton proteins to modulate the morphology, increase protein synthesis and on the more can favor the ECM protein conformational changes. On these grounds, the present dissertation illustrates that persistent electrical activation influences the multipotency of hMSCs and acts like a promoter towards selective differentiation of hMSCs into neural/cardiomyogenic or osteogenic lineage. Besides, continual exposure to electric field stimulated conducting culture environments lead to growth arrest while enhancing differentiation. In total, this dissertation suggests the dominant role of conductivity in inducing my oblast differentiation and hMSc lineage commitment that involves EF stimulated in vitro culture conditions. Also, a knowledge base with qualitative and quantitative understanding of stem cells and their response to substrate physical properties and external field effect was developed through this comprehensive study. Such an improved understanding of the ability of hMSCs in sensing electrical conductivity may lead to the development of culture additives/conditions that better induce directed stem cell differentiation.
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Частини книг з теми "NICKEL NANO-PARTICLES"

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Saha, R. K., S. Mohamed, and T. I. Khan. "Effect of Coating Parameters on the Electrodeposition of Nickel Containing Nano-Sized Alumina Particles." In Ceramic Transactions Series, 39–50. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118144442.ch4.

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2

Ferreira, L.-M. P., E. Bayraktar, I. Miskioglu, and M.-H. Robert. "Design of Magnetic Aluminium (AA356) Composites (AMCs) Reinforced with Nano Fe3O4, and Recycled Nickel: Copper Particles." In Mechanics of Composite, Hybrid and Multifunctional Materials, Volume 5, 93–100. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-95510-0_12.

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3

Jao, Kuang-Yu, Chen-Hun Hsu, and An-Nan Ko. "Nano-Nickel particles and nickel supported on Si-MCM-41: Synthesis, characterization and catalytic hydrogenation." In Molecular Sieves: From Basic Research to Industrial Applications, Proceedings of the 3rd International Zeolite Symposium (3rd FEZA), 1501–8. Elsevier, 2005. http://dx.doi.org/10.1016/s0167-2991(05)80503-8.

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4

Li, Jianliang, Dangsheng Xiong, Yongkun Qin, and Rajnesh Tyagi. "Tribological Behavior of Ni-Based Self-Lubricating Composites at Elevated Temperatures." In Processing Techniques and Tribological Behavior of Composite Materials, 72–106. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-7530-8.ch003.

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Анотація:
This chapter illustrates the effect of the addition of solid lubricants on the high temperature friction and wear behavior of Ni-based composites. Ni-based composites containing solid lubricant particles both in nano and micrometer range have been fabricated through powder metallurgy route. In order to explore the possible synergetic action of a combination of low and high temperature solid lubricant, nano or micro powders of two or more solid lubricants were added in the composites. This chapter introduces the fabrication of the Ni-based self-lubricating composites containing graphite and/or MoS2, Ag and/or rare earth, Ag and/or hBN as solid lubricants and their friction and wear behavior at room and elevated temperatures. The chapter also includes information on some lubricating composite coatings such as electro-deposited nickel-base coating containing graphite, MoS2, or BN and graphene and their tribological characteristics.
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5

Francis Luther King, M., and S. Sherin Nithya. "Applications of Nanoparticles in the Cosmetic Field." In Sustainable Utilization of Nanoparticles and Nanofluids in Engineering Applications, 102–29. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-9135-5.ch005.

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Анотація:
Nanotechnology is a cutting-edge scientific discipline that focuses on manipulating matter at the nanoscale scale to create new and useful materials, gadgets, and systems (1–100 nm). One of the most rapidly expanding, and commercially viable niches in the cosmetics industry is the use of micellar nanoparticles in these products. The improved qualities of the nano-sized particles in terms of colour, transparency, solubility, etc., are largely responsible for the extensive impact of nanotechnology in the cosmetics sectors. Cosmetics use a wide variety of nano materials, including nanosomes, liposomes, fullerenes, solid lipid nanoparticles, etc. Recent worries about the potential dangers of nano cosmetics have prompted the cosmetics industry to restrict the use of nanotechnology in cosmetics and push for stricter regulations requiring a thorough safety review of the products before they hit store shelves. This chapter looks at the latest developments in nano-sized materials for use in cosmetics in an effort to address these problems despite the not-so-obvious hidden hazards.
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Тези доповідей конференцій з теми "NICKEL NANO-PARTICLES"

1

Satya, A. T., T. Gnanasekaran, A. Bharathi, Alka B. Garg, R. Mittal, and R. Mukhopadhyay. "Magnetisation Studies on Nickel Nano Particles." In SOLID STATE PHYSICS, PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010. AIP, 2011. http://dx.doi.org/10.1063/1.3605917.

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2

Sundaram, Dilip S., Vigor Yang, and Puneesh Puri. "Thermo-Mechanical Behavior of Nickel-Coated Nano-Aluminum Particles." In 49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-606.

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3

Iizuka, Tomonori, Yasunori Tanaka, Kazuhito Kamei, Masakazu Inagaki, Norihiro Murakawa, and Kohei Tatsumi. "High-temperature-resistant interconnection by using Nickel Nano-particles for power devices packaging." In 2016 International Symposium on Semiconductor Manufacturing (ISSM). IEEE, 2016. http://dx.doi.org/10.1109/issm.2016.7934521.

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4

Matkowski, Przemyslaw K., Tomasz Falat, and Andrzej Moscicki. "Reliability of Interconnections Made of Sintered Silver Nano Particles." In ASME 2015 International Technical Conference and Exhibition on Packaging and Integration of Electronic and Photonic Microsystems collocated with the ASME 2015 13th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ipack2015-48795.

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This study investigates the effect of silver paste composition on reliability of sintered silver interconnections. The interconnections are formed between SMD 1206 chip jumpers and electroless nickel immersion gold (ENIG) coating of FR4 printed circuit board (PCB) solder pads. They are made of pastes that vary in their composition (various proportions of micro and nano particles). The sintering process was conducted in convective oven. After the process the interconnections were subjected to X-Ray inspection in order to characterize the structure of interconnections (presence of voids, total surface of interconnection etc.). During accelerated reliability tests the PCBs were subjected to combined temperature cycling and vibration loading. During the tests daisy chains of interconnections were connected to dedicated programmable multichannel event detector developed in LIPEC lab. The event detector is able to detect and store information about object condition based on the real-time resistance measurements and applied novel algorithm of event detection. Failure modes were confirmed by using X-Ray computed tomography. The paper presents results of comparative Weibull analysis.
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5

Pradhan, Somarpita, Kajal Mondal, and Partha Roy Chaudhuri. "Response of nano Crystalline Cobalt-doped Nickel Ferrite Particles in Magnetic Field Detection Experiments." In JSAP-OSA Joint Symposia. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/jsap.2014.18a_c3_8.

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6

Soliman, Haytham, Jonathan Phillips, Claudia Luhrs, Hugo Zea, and Zayd C. Leseman. "Aerosol Synthesis of Nano and Micro-Scale Zero Valent Nickel Particles From Oxide Precursors." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39075.

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In this work a novel aerosol method, derived from the batch Reduction/Expansion Synthesis (RES) method, for production of nano / micro-scale metal particles from oxides and hydroxides is presented. In the Aersosol-RES (A-RES) method, an aerosol, consisting of a physical mixture of urea and metal oxide or hydroxides, is passed through a heated oven (1000 °C) with a residence time of the order of 1 second, producing pure (zero valent) metal particles. It appears that the process is flexible regarding metal or alloy identity, allows control of particle size and can be readily scaled to very large throughput. Current work is focused on creating nanoparticles of metal and metal alloy using this method. Although this is primarily a report on observations, some key elements of the chemistry are clear. In particular, the reducing species produced by urea decomposition are the primary agents responsible for reduction of oxides and hydroxides to metal. It is also likely that the rapid expansion that takes place when solid/liquid urea decomposes to form gas species influences the final morphology of the particles.
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7

Omprakash, S., A. P. Gnana Prakash, and P. S. Naik. "AC conductivity and dielectric studies on nickel ferrite nano-particles synthesized by sol gel technique." In 16th International Workshop on Physics of Semiconductor Devices, edited by Monica Katiyar, B. Mazhari, and Y. N. Mohapatra. SPIE, 2012. http://dx.doi.org/10.1117/12.925306.

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8

Melinda Wolanin and Czarena Crofcheck. "Utilization of Submicron and Nano-sized Nickel Particles to Facilitate Recovery of Histidine-tagged Proteins." In 2006 Portland, Oregon, July 9-12, 2006. St. Joseph, MI: American Society of Agricultural and Biological Engineers, 2006. http://dx.doi.org/10.13031/2013.21980.

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9

Dempsey, Sarah J., Alexander J.Webb, Adam Graham, David Bloor, Del Atkinson, and Marek Szablewski. "Vapor sensing properties of a conductive polymer composite containing Nickel particles with nano-scale surface features." In 2013 IEEE 13th International Conference on Nanotechnology (IEEE-NANO). IEEE, 2013. http://dx.doi.org/10.1109/nano.2013.6720830.

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10

Morales Corredor, Mónica, S. Cucatti, J. J. S. Acuuna, O. Antonin, M. C. Hugon, N. Marsot, B. Bouchet-Fabre, T. Minea, and F. Alvarez. "Influence of the nano-structure and composition of titanium nitride based substrate on the carbon nanotubes grown by CVD." In 13th International Conference on Plasma Surface Engineering September 10 - 14, 2012, in Garmisch-Partenkirchen, Germany. Linköping University Electronic Press, 2013. http://dx.doi.org/10.3384/wcc2.43-46.

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We present a study of the influence of the substrate nano-structure and composition on the morphological properties of the carbon nanotubes (CNTs) by sequentially growing in situ TiNx:Oy film, dispersed nickel catalyst particles, and CNTs obtained by CVD. The results show that the stoichiometry and the nanostructures of the substrate intervene in the growing process. Particular attention is pay to the influence of oxygen on the CNT growths. The results show that O prevents the coarsening of the catalyst nickel particles, avoiding the surface diffusion mobility of the precursor atoms involved in the nanotubes growth (Ostwald ripening)1. The dependence of the size and density of the CNTs on the amount of O present in the substrate are reported and discussed. The experimental findings show that, besides acting as diffusion barrier between the catalyst particles and the silicon, the substrate also influences the kinetics of growth of carbon nanotubes.
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