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Dissertations / Theses on the topic 'Gold coated zinc oxide nanoparticles'

Author: Grafiati

Published: 11 December 2022

Last updated: 31 July 2025

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1

English, Michael David. "Gold coating of silica and zinc oxide nanoparticles by the surface reduction of gold(I) chloride." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/51084/1/Michael_English_Thesis.pdf.

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The possibility of a surface inner sphere electron transfer mechanism leading to the coating of gold via the surface reduction of gold(I) chloride on metal and semi-metal oxide nanoparticles was investigated. Silica and zinc oxide nanoparticles are known to have very different surface chemistry, potentially leading to a new class of gold coated nanoparticles. Monodisperse silica nanoparticles were synthesised by the well known Stöber protocol in conjunction with sonication. The nanoparticle size was regulated solely by varying the amount of ammonia solution added. The presence of surface hy

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2

Fernando, Joseph F. S. "Crystal seeding and photochemistry of gold-zinc oxide hybrid nanoparticles." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/101206/1/Joseph_Fernando_Thesis.pdf.

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This project investigated the synthesis of hybrid nanoparticles of gold and zinc oxide by using photodeposition and crystal seeding approach. The study extended our understanding of the factors that determine nanocrystal size, shape and ratio of gold and zinc oxide in the hybrid system. Control at this scale is important from a materials-engineering viewpoint and for technological applications such as nonlinear optics, photocatalysis and photovoltaics. This research found that nonlinear optical absorption of zinc oxide can be enhanced by several orders of magnitude by coupling zinc oxide nanop

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3

Van, Zandt Nicholas L. "Aqueous Fabrication of Pristine and Oxide Coated ZnSe Nanoparticles." Wright State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=wright1623356039586297.

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4

Lynn, Madeleine E. "Synthesis of silica and gold coated gadolinium oxide nanoparticles for magnetic resonance imaging." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/116750/1/Madeleine_Lynn_Thesis.pdf.

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Gadolinium oxide nanoparticles were coated with silica and functionalised with gold and anti-PSMA antibodies, to create an MRI contrast agent for potential use in the detection of prostate cancer. This work is presented as an alternative to toxic gadolinium based contrast agents, while maintaining high contrast abilities and the potential for selective cell targeting.

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5

Bolyard, Stephanie Carbone. "Fate of Coated Zinc Oxide in Municipal Solid Waste Landfills." Master's thesis, University of Central Florida, 2012. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5133.

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Given the increase in nanomaterial (NM) use in consumer products and the large fraction of waste placed in landfills worldwide, the probability of these products reaching municipal solid waste (MSW) landfills at the end of their useful life is high. Since nanotechnology use is still in its early stages, there are currently no regulations pertaining to the disposal of NMs and their fate in MSW landfills is still unknown. Understanding the fate of NMs in MSW landfills is vital to ensure the proper handling of these novel materials from cradle to grave; such research will provide information on h

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6

Kwiatkowski, Maciej. "ZnO(core)/TiO2(shell) composites: influence of TiO2 microstructure, N-doping and decoration with Au nanoparticles on photocatalytic and photoelectrochemical activity." Doctoral thesis, Bourgogne Franche-Comté, 2017. https://depotuw.ceon.pl/handle/item/2244.

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Efficient use of renewable energies is one of the most difficult technological challenges facing humanity. Among all renewable energy sources, the sunlight is considered as the most abundant and accessible one. To convert it into usable and controllable form, the modern technology relies on generation of electron-hole pairs in semiconductors upon light absorption. The obtained separated charge carriers possess extra energy brought by the converted sunlight which can be further utilized in various ways. Currently, the most common approach consists in its direct transformation into electricity i

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7

Bergman, Kathryn N. "Biomineralization of inorganic nanostructures using protein surfaces." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/22674.

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Thesis (M. S.)--Materials Science and Engineering, Georgia Institute of Technology, 2008.<br>Committee Chair: Tsukruk, Vladimir; Committee Member: Kalaitzidou, Kyriaki; Committee Member: Valeria Milam.

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8

HSU, HUAI-SHENG, and 許懷升. "Magneto-Optical Property of Gold-Coated Cobalt Zinc Oxide Nanorod." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/yv8crs.

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碩士<br>國立屏東大學<br>應用物理系碩士班<br>106<br>Naonmaterials that magnetic materials hybridize with zinc oxide have been extensively studied, because of their potential about improvement in photocatalytic reactions and using external magnetic field control photodevice. However, it is still unclear how to control or change the optical properties after coating magnetic material on nanomaterials. In this paper we will introduce the use of gold to change the magnetic absorption of Co/ZnO NRs. After coating gold, it was found that charge be transferred at the interface of cobalt and zinc oxide, that can make n

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9

Tsai, Chia-Chou, and 蔡嘉洲. "Zinc-decorated silica-coated gold nanoparticles for rapid screening and purification of bovine hemoglobin." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/60575229010918070793.

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碩士<br>國立高雄海洋科技大學<br>水產食品科學研究所<br>99<br>At the nanoscale, the nanoparticles have showed a different character of physics and chemistry from their bulk because of the effect of small scale, surface effect and quantum effect. Among all the nanoparticles, the gold ones are widely used in examining bio-molecules because they have special optical property and splendid biocompatible. In this study, we want to develop the nanoparticles possessing rapid screening and purification of bovine hemoglobin by combining the special optical property of gold nanoparticles and metal affinity chromatography. In t

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10

RUSTAMADI, SAPTO WIJANARKO, and SAPTO WIJANARKO RUSTAMADI. "Gold Nanoparticles Immobilized on Zinc Oxide Nanoparticles for Photodegradation and SERS Detection of Water Pollutants." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/nn6442.

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碩士<br>國立臺灣科技大學<br>材料科學與工程系<br>106<br>Zinc oxide nanoparticles (ZnO NPs) were successfully synthesized by hydro thermal methods and then annealing at varied temperature (200, 300, 400, 500, 600 and 700oC). Furthermore, gold nanoparticles (Au NPs) were immobilized on the dimercaptosuccinic acid (DMSA) modified ZnO NPs (Au-ZnO NPs) for the photodegradation and surface enhanced Raman scattering (SERS) detection of the water pollutants, such as methylene blue. The effects of the particle size of ZnO NPs at varied annealing temperatures were investigated. The morphology of ZnO NPs and Au NPs were ev

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11

HUANG, YU-HAO, and 黃禹皓. "Enhanced field emission properties of zinc oxide nanorods adsorbed with gold nanoparticles." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/z675mg.

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12

Hsu, Ya-Hong, and 徐雅虹. "Detection of MicroRNA by Faraday Magneto-Optical Effect and DNA-Mediated Gold-Coated Iron Oxide Magnetic Nanoparticles." Thesis, 2019. http://ndltd.ncl.edu.tw/cgi-bin/gs32/gsweb.cgi/login?o=dnclcdr&s=id=%22107NCHU5759012%22.&searchmode=basic.

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碩士<br>國立中興大學<br>奈米科學研究所<br>107<br>In this study, the gold nanoparticles were coated on the surface of γ-Fe2O3 magnetic nanoparticles by using iteration method to form gold-coated iron oxide magnetic nanoparticles (γ-Fe2O3@Au NPs). The X-ray diffraction (XRD), UV-visible spectrum (UV-Vis), nanoparticle and zeta Potential Analyzer (DLS), transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) were used to make sure the core-shell structure. MicroRNA is a non-invasive biomarker in blood, and the concentration of microRNA is closely related to the development of the disease

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13

Ou, Jen-Hung, and 歐任弘. "Transparent, high-sensitive zinc oxide-based thin-film transistors with gold nanoparticles structure for visible photodetecting devices." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/xz3rk5.

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碩士<br>國立交通大學<br>材料科學與工程學系奈米科技碩博士班<br>106<br>In this thesis, we fabricated a non-toxic zinc oxide (ZnO) material as the semiconducting channel layer for thin-film transistor (TFT) by using simple and low-temperature processing method. The thin-film transistors can be operated at low voltage, and it can be a photo-detector for sensing the visible light. The thin-film transistors exhibited good electrical switching characteristics which have very low leakage current in the non-working region, in contrast, they have relatively higher saturation drain current in the working region. In this study, w

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14

Lin, Kuan, and 林寬. "Highly Transparent Photodetector based on Zinc Oxide Thin-Film Transistors with Gold Nanoparticles Structure via Low Temperature Fabrication." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/3294q3.

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碩士<br>國立交通大學<br>材料科學與工程學系奈米科技碩博士班<br>108<br>In this thesis, a highly transparent thin film transistor (TFT) is fabricated on a conductive oxide glass substrate under low temperature. Zinc oxide (ZnO) and gold nanoparticles (AuNPs) are used as the main materials, and the fabricated photosensor is capable of sensing ultra violet (UV) and visible light. ZnO is used as the conductive channel material, which possesses high carrier mobility, high transparency, and is non-toxic. ZnO is often used in UV photosensors because the band gap is 3.3 eV and has the ability to absorb UV light. The ZnO thin fi

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15

Chen, Jian-Ming, and 陳建銘. "Study of Magneto-Optical Faraday Effect Enhancement in Gold-Coated Iron Oxide Nanoparticles and Application of Alzheimer ''s Disease Detection." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/45073739785326359316.

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碩士<br>國立中興大學<br>奈米科學研究所<br>105<br>In this study, γ-Fe2O3 nanoparticles are used as the core and gold were deposited on the surface of γ-Fe2O3 nanoparticles by using the iteration method to form the γ-Fe2O3@Au nanoparticles. The X-ray diffraction (XRD), UV-visible spectrum (UV-vis), superconducting quantum interference device (SQUID), laser diffraction particle size analyzer (DLS), transmission electron microscopy (TEM) and energy dispersive spectrometers (EDS) were used to make sure the gold were actually coated on the γ-Fe2O3 nanoparticles. Then γ-Fe2O3@Au nanoparticles were applied to the de

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