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Journal articles on the topic 'NANOPARTICULATE FILLER'

Author: Grafiati

Published: 11 September 2023

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1

Randhawa, Kawaljit Singh, and Ashwin D. Patel. "A review on tribo-mechanical properties of micro- and nanoparticulate-filled nylon composites." Journal of Polymer Engineering 41, no. 5 (2021): 339–55. http://dx.doi.org/10.1515/polyeng-2020-0302.

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Abstract Nylon composites are of evolving interest due to their good strength, toughness, and low coefficient of friction. Various fillers like micro- and nanoparticulates of metals and metal compounds were used to enhance the mechanical and tribological properties of nylons for many years by researchers. In this paper, an overall understanding of composites, filler materials, especially particulate filler materials, application areas of polymer composites, wear of polymers, and the effect of various fillers on tribo-mechanical properties of nylons have been discussed. The detailed review is l

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2

Sobczyk-Guzenda, Anna, Paulina Boniecka, Anna Laska-Lesniewicz, Marcin Makowka, and Hieronim Szymanowski. "Micro- and Nanoparticulate Hydroxyapatite Powders as Fillers in Polyacrylate Bone Cement—A Comparative Study." Materials 13, no. 12 (2020): 2736. http://dx.doi.org/10.3390/ma13122736.

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Acrylate polymer-based bone cements constitute the most popular bonding agents used in regenerative surgery. Due to their inferior biocompatibility, however, these materials are often enriched with ceramic additives including hydroxyapatite (HAp). The aim of this paper was to perform a comparative study of the acrylate cements filled with different content (3–21%) of nano- and microscale hydroxyapatite. The work concerns a comparison of times and temperatures of the cross-linking reaction, as well as morphology, glass transition temperature, and principal mechanical properties of the resulting

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Siva Kaylasa Sundari, S., S. Shamim Rishwana, R. Ramani, and C. T. Vijayakumar. "Improvement in electrical and mechanical properties of di/trifunctional epoxies-based hybrid composites having metal organic frameworks (MOFs) as nanoparticulate filler." MRS Communications 12, no. 2 (2022): 250–56. http://dx.doi.org/10.1557/s43579-022-00170-z.

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4

Einollahi, Yashar, Amir Hooman Hemmasi, Habibollah Khademi Eslam, Esmaeil Ghasemi, and Mohammad Talaeipour. "The effect of different mineral fillers on starch/rice husk composite properties." BioResources 16, no. 1 (2021): 1772–86. http://dx.doi.org/10.15376/biores.16.1.1772-1786.

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The objective of this research was to study the feasibility of producing biodegradable thermoplastic starch rice-husk composites. The effect of different types of mineral fillers on the various properties of thermoplastic starch composites filled with rice-husk flour, an agricultural waste residue, was studied. The mineral fillers aluminum trihydrate (ATH), magnesium dihydroxide (MDH), nanoparticulate MDH, and nanoclay were studied. It was found that the addition of the mineral fillers and especially nanofillers improved the dimensional stability and the mechanical properties of the composites

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5

Campos, Luiza MP, Letícia C. Boaro, Tamiris MR Santos, et al. "Evaluation of flexural modulus, flexural strength and degree of conversion in BISGMA/TEGDMA resin filled with montmorillonite nanoparticles." Journal of Composite Materials 51, no. 7 (2016): 927–37. http://dx.doi.org/10.1177/0021998316656925.

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This study had as its main objective to evaluate the flexural properties (strength and modulus) and degree of conversion of a dimethacrylate resin containing different amounts of nanoparticulated clay Montomorillonite (MMT) as filler. A series of composites containing similar amounts (in volume) of barium glass particles was also tested as control data. Eight formulations with polymeric matrix-based BisGMA/TEGDMA (Bisphenol A Bis(2-hydroxy-3 methacryloxypropyl)Ether/Triethyleneglycol Dimethacrylate), four added with MMT and four added with barium glass in the volume concentration of 20, 30, 40

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6

Mitra, Tamoghna, Rupesh S. Bhavsar, Dave J. Adams, Peter M. Budd, and Andrew I. Cooper. "PIM-1 mixed matrix membranes for gas separations using cost-effective hypercrosslinked nanoparticle fillers." Chemical Communications 52, no. 32 (2016): 5581–84. http://dx.doi.org/10.1039/c6cc00261g.

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Addition of a cheap, nanoparticulate, hypercrosslinked polymer “sponge” to the high-free-volume glassy polymer PIM-1 gives mixed matrix membranes with enhanced permeability and improved aging behaviour.

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7

Melo-Silva, T. C. F., C. L. Melo-Silva, C. F. Carvalho, A. B. Teixeira, J. F. C. Lins, and J. P. Gouvêa. "Evaluation of Mechanical Properties of Composite Materials Used in Dentistry Varying the Inorganic Composition." Materials Science Forum 820 (June 2015): 320–24. http://dx.doi.org/10.4028/www.scientific.net/msf.820.320.

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The aim of this study was to determine the hardness and the elasticity modulus of the two composite resins base of BISGMA with different inorganic particles: a nanoparticulated with a ceramic withload, (Filtek Z350XT-3M) with and without thermal activation and a microhybrid with no ceramic load (Opallis-FGM). The samples were prepared and subjected to the tests of Vickers hardness (Shimadzu HMV) and acoustic excitation pulse (Sonelastic ®). The samples were divided into three groups: G1-Filtek Z350 XT; G2-Filtek Z350XT MO (subject to further polymerization microwave) and G3-Opallis. The result

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8

TabkhPaz, Majid, Dong-Yeob Park, Patrick C. Lee, Ron Hugo, and Simon S. Park. "Development of nanocomposite coatings with improved mechanical, thermal, and corrosion protection properties." Journal of Composite Materials 52, no. 8 (2017): 1045–60. http://dx.doi.org/10.1177/0021998317720001.

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In this study, new composite coatings are fabricated and investigated for their applications as the metal coating. The studied coatings consist of two-layered composites with various nanoparticulates as fillers in a polymeric matrix (styrene acrylic). The first layer bonded to the steel plate uses a combination of zinc particles, multi-walled carbon nanotubes, and graphene nanoplatelets. For the second layer, hexagonal boron nitride with high electrical insulation properties is added to the matrix. The morphology of the nanoparticulates is conducted using a scanning electron microscope. The co

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9

Gomoll, Andreas H., Wolfgang Fitz, Richard D. Scott, Thomas S. Thornhill, and Anuj Bellare. "Nanoparticulate fillers improve the mechanical strength of bone cement." Acta Orthopaedica 79, no. 3 (2008): 421–27. http://dx.doi.org/10.1080/17453670710015349.

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10

Ghadami, F., M. R. Dadfar, and M. Kazazi. "Hot-cured epoxy-nanoparticulate-filled nanocomposites: Fracture toughness behavior." Engineering Fracture Mechanics 162 (August 2016): 193–200. http://dx.doi.org/10.1016/j.engfracmech.2016.05.016.

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11

Kovačević, Vera, Domagoj Vrsaljko, Sanja Lučić Blagojević, and Mirela Leskovac. "Adhesion parameters at the interface in nanoparticulate filled polymer systems." Polymer Engineering & Science 48, no. 10 (2008): 1994–2002. http://dx.doi.org/10.1002/pen.21132.

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12

Wei, Xue Yong, and Kyle Jiang. "Synthesis and Characterization of Nanoparticulate Strengthened Nickel Microcomponents." Advances in Science and Technology 54 (September 2008): 299–304. http://dx.doi.org/10.4028/www.scientific.net/ast.54.299.

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In this study, microcomponents of nickel (Ni) based nanocomposite were obtained by electrochemical co-deposition of Ni and alumina (Al2O3) nanoparticles into the microfabricated photoresist moulds from a nickel sulfamate bath with the presence of multi-wall carbon nanotubes (MWCNTs). The examination of dispersion behaviour of Al2O3 nanoparticles in nickel sulfamate bath with MWCNTs showed that the surfaces of the fillers are positively charged in a wide range of pH value, which favours the co-deposition of Al2O3 nanoparticles and MWCNTs with Ni. Results of SEM and EDX characterizations showed

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Gunes, I. Sedat, Feina Cao, and Sadhan C. Jana. "Evaluation of nanoparticulate fillers for development of shape memory polyurethane nanocomposites." Polymer 49, no. 9 (2008): 2223–34. http://dx.doi.org/10.1016/j.polymer.2008.03.021.

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14

Vrsaljko, Domagoj, Mirela Leskovac, Sanja Lučić Blagojević, and Vera Kovačević. "Interphase phenomena in nanoparticulate filled polyurethane/poly(vinyl acetate) polymer systems." Polymer Engineering & Science 48, no. 10 (2008): 1931–38. http://dx.doi.org/10.1002/pen.21055.

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15

Anuar, Hazleen, S. B. Abd Razak, N. Md Kahar, and N. A. Jamal. "Effects of High Energy Radiation on Mechanical Properties of PP/EPDM Nanocomposite." Advanced Materials Research 264-265 (June 2011): 738–42. http://dx.doi.org/10.4028/www.scientific.net/amr.264-265.738.

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Nanocomposites are the materials that are created by introducing nanoparticulates that always referred to as filler into the matrix. Blends of polypropylene (PP)/ethylene propylene diene monomer (EPDM)/Montmorillonite (MMT) were treated by compatibilizer MAPP and irradiation of electron beam. The effects on mechanical properties for both samples were compared with the untreated nanocomposites. Because each samples used different portion of clay loading, the effects of clay loading on mechanical properties is also observed. The sample is characterized by using Transmission Electron Microscope (

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16

Kilian, Olaf, Sabine Wenisch, Srikanth Karnati, et al. "Observations on the microvasculature of bone defects filled with biodegradable nanoparticulate hydroxyapatite." Biomaterials 29, no. 24-25 (2008): 3429–37. http://dx.doi.org/10.1016/j.biomaterials.2008.05.003.

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17

Finke, Benedikt, Clara Sangrós Giménez, Arno Kwade, and Carsten Schilde. "Viscosity Model for Nanoparticulate Suspensions Based on Surface Interactions." Materials 14, no. 11 (2021): 2752. http://dx.doi.org/10.3390/ma14112752.

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In this paper, a widely mechanistic model was developed to depict the rheological behaviour of nanoparticulate suspensions with solids contents up to 20 wt.%, based on the increase in shear stress caused by surface interaction forces among particles. The rheological behaviour is connected to drag forces arising from an altered particle movement with respect to the surrounding fluid. In order to represent this relationship and to model the viscosity, a hybrid modelling approach was followed, in which mechanistic relationships were paired with heuristic expressions. A genetic algorithm was utili

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18

Finke, Benedikt, Arno Kwade, and Carsten Schilde. "Numerical Simulation of the Rheological Behavior of Nanoparticulate Suspensions." Materials 13, no. 19 (2020): 4288. http://dx.doi.org/10.3390/ma13194288.

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Nanoparticles significantly alter the rheological properties of a polymer or monomeric resin with major effect on the further processing of the materials. In this matter, especially the influence of particle material and disperse properties on the viscosity is not yet understood fully, but can only be modelled to some extent empirically after extensive experimental effort. In this paper, a numerical study on an uncured monomeric epoxy resin, which is filled with boehmite nanoparticles, is presented to elucidate the working principles, which govern the rheological behavior of nanoparticulate su

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19

Keyoonwong, Wiwat, Yi Guo, Masatoshi Kubouchi, Saiko Aoki, and Tetsuya Sakai. "Corrosion Behavior of Three Nanoclay Dispersion Methods of Epoxy/Organoclay Nanocomposites." International Journal of Corrosion 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/924283.

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The aims of this study, firstly, to obtain high degree of clay exfoliation in the epoxy matrix by three dispersion methods such as normal mixing, shear mixing, and high-speed mixing and, secondly, to investigate corrosion behavior of epoxy/organoclay nanocomposite, immersion test, weight change, and penetration behavior were conducted. From the three mixing methods, the high-speed mixing method showed larger clay interlayer distance, smaller clay aggregate, and more homogeneity and expectedly resulted in high anticorrosive properties. Penetration depths of these nanocomposites showed a small d

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20

Aravindan, Vanchiappan, and Palanisamy Vickraman. "Nanoparticulate AlO(OH)n filled polyvinylidenefluoride-co-hexafluoropropylene based microporous membranes for lithium ion batteries." Journal of Renewable and Sustainable Energy 1, no. 2 (2009): 023108. http://dx.doi.org/10.1063/1.3122671.

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21

Li, Ning, Dinesh S. Kommireddy, Yuri Lvov, Wilna Liebenberg, Louwrens R. Tiedt, and Melgardt M. De Villiers. "Nanoparticle Multilayers: Surface Modification of Photosensitive Drug Microparticles for Increased Stability and In Vitro Bioavailability." Journal of Nanoscience and Nanotechnology 6, no. 9 (2006): 3252–60. http://dx.doi.org/10.1166/jnn.2006.421.

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The results of this study report the novel use of electrostatic layer-by-layer nanoassembly of biocompatible nanoparticulate TiO2 multilayers to coat irregular nifedipine (NF) microcrystals to increase the photostability of the drug when exposed to simulated sunlight and to increase the dissolution rate and possibly the bioavailability of the drug after oral administration. The photostability of NF microcrystals (35 μm) coated with multiple bilayers of positively charged PDDA and negatively charged nanosized TiO2 particles (20–25 nm) was measured when exposed to an illuminance of 12 W/m2 corre

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22

Sonawane, Pradip S., Santoshkumar S. Biradar, S. Radhakrishnan, and B. D. Kulkarni. "Role of ionic diffusion in polymer gel mediated growth (PMG) technique for the synthesis of nanoparticulate fillers." Materials Chemistry and Physics 105, no. 2-3 (2007): 348–53. http://dx.doi.org/10.1016/j.matchemphys.2007.04.071.

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23

Soto, K. F., K. M. Garza, Y. Shi, and L. E. Murr. "Direct contact cytotoxicity assays for filter-collected, carbonaceous (soot) nanoparticulate material and observations of lung cell response." Atmospheric Environment 42, no. 9 (2008): 1970–82. http://dx.doi.org/10.1016/j.atmosenv.2007.12.027.

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24

Olson, Carol, Dirk Veldman, Klaas Bakker, and Frank Lenzmann. "Characterization of the Pore Filling of Solid State Dye Sensitized Solar Cells with Photoinduced Absorption Spectroscopy." International Journal of Photoenergy 2011 (2011): 1–11. http://dx.doi.org/10.1155/2011/513089.

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Near steady-state photoinduced absorption (PIA) and UV-Vis absorption spectroscopy are used to characterize the pore filling of spiro-MeOTAD (2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenylamine)9,9′-spirobifluorene) into the nanoparticulate TiO2electrode of a solid-state dye-sensitized solar cell (ssDSC). The volumetric ratio of filled to unfilled pore volumes, as well as the optical signature of interacting chemical species, that is, the hole-transfer yield (HTY), are investigated. PIA spectroscopy is used to measure the HTY, relative to the amount of spiro-MeOTAD present, without needing to dete

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25

Gunes, I. Sedat, César Pérez-Bolivar, Feina Cao, Guillermo A. Jimenez, Pavel Anzenbacher, and Sadhan C. Jana. "Analysis of non-covalent interactions between the nanoparticulate fillers and the matrix polymer as applied to shape memory performance." Journal of Materials Chemistry 20, no. 17 (2010): 3467. http://dx.doi.org/10.1039/b922027e.

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26

Lo, Samantha, and Mh Busra Fauzi. "Current Update of Collagen Nanomaterials—Fabrication, Characterisation and Its Applications: A Review." Pharmaceutics 13, no. 3 (2021): 316. http://dx.doi.org/10.3390/pharmaceutics13030316.

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Tissue engineering technology is a promising alternative approach for improvement in health management. Biomaterials play a major role, acting as a provisional bioscaffold for tissue repair and regeneration. Collagen a widely studied natural component largely present in the extracellular matrix (ECM) of the human body. It provides mechanical stability with suitable elasticity and strength to various tissues, including skin, bone, tendon, cornea and others. Even though exogenous collagen is commonly used in bioscaffolds, largely in the medical and pharmaceutical fields, nano collagen is a relat

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27

Zhang, He, Gang Han, and Gerhard Litscher. "Traditional Acupuncture Meets Modern Nanotechnology: Opportunities and Perspectives." Evidence-Based Complementary and Alternative Medicine 2019 (July 16, 2019): 1–9. http://dx.doi.org/10.1155/2019/2146167.

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Acupuncture is an ancient method in traditional Chinese medicine (TCM). Usually acupuncture needles are inserted into the body to achieve therapeutic effects. However, there are still some challenges to achieve consensuses. What is the essence or anatomy of acupuncture meridians? How does acupuncture work? How to improve acupuncture clinical therapeutic effect? These questions may be addressed by highlighting recent developments in innovative nanotechnology. The aim of this review is to elucidate the possible applications and future potential of nanotechnology in acupuncture. Nanoparticles are

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28

Neu‐Baker, Nicole M., Adrienne C. Eastlake, and Sara A. Brenner. "Sample preparation method for visualization of nanoparticulate captured on mixed cellulose ester filter media by enhanced darkfield microscopy and hyperspectral imaging." Microscopy Research and Technique 82, no. 6 (2019): 878–83. http://dx.doi.org/10.1002/jemt.23231.

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29

Kasper, Jennifer Y., M. Iris Hermanns, Annette Kraegeloh, W. Roth, C. James Kirkpatrick, and Ronald E. Unger. "In Vitro Entero-Capillary Barrier Exhibits Altered Inflammatory and Exosomal Communication Pattern after Exposure to Silica Nanoparticles." International Journal of Molecular Sciences 20, no. 13 (2019): 3301. http://dx.doi.org/10.3390/ijms20133301.

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The intestinal microvasculature (iMV) plays multiple pathogenic roles during chronic inflammatory bowel disease (IBD). The iMV acts as a second line of defense and is, among other factors, crucial for the innate immunity in the gut. It is also the therapeutic location in IBD targeting aggravated leukocyte adhesion processes involving ICAM-1 and E-selectin. Specific targeting is stressed via nanoparticulate drug vehicles. Evaluating the iMV in enterocyte barrier models in vitro could shed light on inflammation and barrier-integrity processes during IBD. Therefore, we generated a barrier model b

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30

Park, Barry, Barry Park, Patricia A. Martin, et al. "Preliminaryin vitroinvestigation of the potential health effects of Optisol™, a nanoparticulate manganese modified titanium dioxide UV-filter used in certain sunscreen products." Nanotoxicology 3, no. 2 (2009): 73–90. http://dx.doi.org/10.1080/17435390802691786.

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31

Kilian, Olaf, Sabine Wenisch, Volker Alt, et al. "Effects of platelet factors on biodegradation and osteogenesis in metaphyseal defects filled with nanoparticular hydroxyapatite—an experimental study in minipigs." Growth Factors 25, no. 3 (2007): 191–201. http://dx.doi.org/10.1080/08977190701687585.

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32

Doherty, Stephen A., David D. Hile, Donald L. Wise, Jackie Y. Ying, Stephen T. Sonis, and Debra J. Trantolo. "Nanoparticulate Hydroxyapatite Enhances the Bioactivity of a Resorbable Bone Graft." MRS Proceedings 735 (2002). http://dx.doi.org/10.1557/proc-735-c6.4.

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ABSTRACTA nanoparticulate-hydroxyapatite filler augmented osteointegration within a resorbable polymer based bone graft substitute designed for orthopaedic and periodontal applications. The unsaturated polyester poly(propylene glycol-co-fumaric acid) (PPF), was used to prepare the bone graft substitute. The nanoparticulate-hydroxyapatite filler was examined in terms of biocompatibility, bony ingrowth and mechanical stability in a rat calvarial defect model. The nano-hydroxyapatite fillerwas compared against a commercially available micrometer-sized hydroxyapatite(HA) filler. Histological analy

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33

Barhoumi Meddeb, A., and Z. Ounaies. "Interphase-assisted suppression of electrode polarization in nanoparticulate-elastomeric composites." Journal of Applied Physics 133, no. 15 (2023). http://dx.doi.org/10.1063/5.0141243.

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The electrical properties of polymer nanocomposites are governed by the behavior of the internal charges. In particular, the interphase around the nanoparticles strongly influences the distribution and mobility of charge carriers within the nanocomposites, which, in turn, impacts the performance of these materials. In this work, we probe the internal charge behavior in the presence of nanoparticles with a focus on the low-frequency regime using a suite of techniques. By investigating the depolarizing currents and the dependence of the dielectric properties on the frequency and temperature, we

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34

Jeffcoat, Paris, Cary Di Lernia, and Elizabeth New. "Letting the Market Decide? The Rise – and Regulatory Risks – of the Australian Nanotechnology Industry." University of New South Wales Law Journal 46, no. 2 (2023). http://dx.doi.org/10.53637/eggy8437.

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In 2022, the European Union moved to ban the use of titanium dioxide as a food additive after it had been on the market for over four decades, due to safety concerns related to the additive’s nanoparticulate nature. Marking a significant backflip in the international regulatory approach to consumer products containing nano-objects, the global shifting of regulatory gears following the decision has already begun to filter through to domestic policymaking, with regulator Food Standards Australia New Zealand forced to reconsider their regulatory approach to the additive, which remains largely per

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35

FRANK, Luana, Waldemir Francisco VIEIRA JUNIOR, Roberta Tarkany BASTING, Cecília Pedroso TURSSI, Flávia Lucisano Botelho do AMARAL, and Fabiana Mantovani Gomes FRANÇA. "Effect of acid challenge and photoactivation distance on microhardness and roughness of flow bulk-fill composite resins." Revista de Odontologia da UNESP 51 (2022). http://dx.doi.org/10.1590/1807-2577.03222.

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Abstract Introduction composite resins are indicated to the reconstruction of proximal walls and the evaluation of properties of flow bulk-fill composite resins exposed to acid challenge is necessary. Objective to evaluate the microhardness and roughness at different depths of photoactivation of bulk-fill flow composites (Filtek Bulk Fill Flow; SureFil SDR Flow; Tetric N Ceram Bulk fill) and conventional composite resin (control, Filtek Z350 XT) subjected to acid challenge. Material and method forty composites brick shaped specimens (3x3x4 mm) were made using a polyacetal matrix. To simulate p

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Garhwal Jha, Sunena, Deepali Tomar, and Sunil Jawla. "Neurotoxic Effects of Nanoparticles and Their Pathogenesis." Pharmaceutical Nanotechnology 11 (June 2, 2023). http://dx.doi.org/10.2174/2211738511666230602143628.

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Abstract: A recent study on the deployment of nanoparticles in the consumer and healthcare sectors has shown highly serious safety concerns. This is despite the fact that nanoparticles offer a vast array of applications and great promise. According to studies on how nanoparticles interact with neurons, the central nervous system experiences both negative and positive impacts (CNS). With a maximum concentration of 0.1-1.0 wt.%, nanoparticles can be incorporated into materials to impart antibacterial and antiviral properties. Depending on the host or base materials utilised, this concentration m

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Yang, Z., Z. W. Liu, R. P. Allaker, et al. "A review of nanoparticle functionality and toxicity on the central nervous system." Journal of The Royal Society Interface 7, suppl_4 (2010). http://dx.doi.org/10.1098/rsif.2010.0158.focus.

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Although nanoparticles have tremendous potential for a host of applications, their adverse effects on living cells have raised serious concerns recently for their use in the healthcare and consumer sectors. As regards the central nervous system (CNS), research data on nanoparticle interaction with neurons has provided evidence of both negative and positive effects. Maximal application dosage of nanoparticles in materials to provide applications such as antibacterial and antiviral functions is approximately 0.1–1.0 wt%. This concentration can be converted into a liquid phase release rate (leach

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38

Kuehr, Sebastian, Noemi Diehle, Ralf Kaegi, and Christian Schlechtriem. "Ingestion of bivalve droppings by benthic invertebrates may lead to the transfer of nanomaterials in the aquatic food chain." Environmental Sciences Europe 33, no. 1 (2021). http://dx.doi.org/10.1186/s12302-021-00473-3.

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Abstract Background Manufactured nanomaterials (MNMs) are released into the environment in increasing quantities. Consequently, MNMs also reach the aquatic environment, where they can interact with different organisms. Previous studies have already shown that filter-feeding bivalves can ingest nanomaterials from the surrounding water leading to higher concentration of the material. Furthermore, they have been shown to be vectors for environmental chemicals and pathogens to other organisms, as their feces/pseudofeces (F/pF) play a crucial role as a food source for other species. We exposed biva

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