Дисертації з теми "Nanostructured metal"
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Eskhult, Jonas. "Electrochemical Deposition of Nanostructured Metal/Metal-Oxide Coatings." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8186.
Повний текст джерелаLi, Li. "Versatile applications of nanostructured metal oxides." Thesis, University of Cambridge, 2014. https://www.repository.cam.ac.uk/handle/1810/245303.
Повний текст джерелаAstuti, Yeni. "Bio-functionalised nanostructured metal oxide electrodes." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429459.
Повний текст джерелаPopov, M. Yu, A. P. Volkov, S. G. Buga, V. S. Bormashov, K. V. Kondrashov, R. L. Lomakin, N. V. Lyparev, V. V. Medvedev, S. A. Tarelkin, and S. A. Perfilov. "Nanostructured metal-fullerene field emission cathode." Thesis, Sumy State University, 2011. http://essuir.sumdu.edu.ua/handle/123456789/20585.
Повний текст джерела杨纯臻 and Chunzhen Yang. "Metal/metal oxide nanoparticles supported on nanostructured carbons for electrochemical applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/193414.
Повний текст джерелаpublished_or_final_version
Chemistry
Doctoral
Doctor of Philosophy
Zuo, Yong. "Nanostructured Metal Sulfides for Electrochemical Energy Conversion." Doctoral thesis, Universitat de Barcelona, 2020. http://hdl.handle.net/10803/670925.
Повний текст джерелаEn esta tesis, se produjeron y optimizaron cuatro catalizadores nanoestructurados basados en Cu2S y SnS2 para mejorar su rendimiento hacia la conversión de energía electroquímica. El Capítulo 1 presentó una introducción general para explicar la motivación del tema de tesis. En el capítulo 2, las matrices de las nanovarillas de Cu2S se sintetizaron in situ sobre un sustrato de cobre metálico para la reacción electroquímica de evolución de oxígeno (OER). Se aplicaron herramientas de caracterización adecuadas para investigar la transformación en la operación OER, durante la cual las matrices iniciales de las nanovarillas Cu2S in situ cambió a nanohilos de CuO. En particular, el CuO derivado de Cu2S mostró un rendimiento de OER significativamente mejor cuando comparado al de CuO preparado mediante el recocido. En el capítulo 3, se detalló un proceso basado en una solución de inyección en caliente para producir nanoplacas ultrafinas SnS2 (NPL). Posteriormente, se cultivóPt en su superficie mediante la reducción in situ de una sal de Pt. Posteriormente se probó el rendimiento fotoelectroquímico (PEC) de los fotoanodes hacia la oxidación del agua. Los fotoanodes de SnS2-Pt optimizados proporcionaron densidades de fotocorriente significativamente más altas que el SnS2 desnudo (seis veces). Se analizó el efecto de Pt. En el capítulo 4, se informó una tinta molecular simple para cultivar capas de SnS2 nanoestructuradas directamente sobre sustratos conductores. Tales capas nanoestructuradas en FTO se caracterizaron por excelentes densidades de fotocorriente. Se utilize la misma estrategia para producir compuestos de grafeno-SnS2, recubrimientos ternarios SnS2-xSex, capas de SnSe2 de fase pura e incluso polvo de SnS2 a gran escala. En el capítulo 5, el SnS2 nanoestructurado con diferentes morfologías se probaron como ánodos LIB en primer lugar para encontrar que los NPL de SnS2 delgados proporcionaban el mayor rendimiento. Posteriormente, se desarrolló una estrategia de síntesis coloidal para cultivar los mismos NPL de SnS2 dentro de una matriz de g-C3N4 (CN) poroso y placas de grafito (GP) y se probaron para la aplicación LIB. Tales compuestos jerárquicos SnS2/CN/GP mostraron excelentes propiedades electroquímicas, lo que se atribuye a la sinergia creada entre los tres componentes como se investigó.
Paul, Blain. "Nanostructured metal oxides as adsorbents and photocatalysts." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/41758/1/Blain_Paul_Thesis.pdf.
Повний текст джерелаGu, Yanjuan, and 谷艳娟. "Nanostructure of transition metal and metal oxide forelectrocatalysis." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B37774396.
Повний текст джерелаGu, Yanjuan. "Nanostructure of transition metal and metal oxide for electrocatalysis." Click to view the E-thesis via HKUTO, 2006. http://sunzi.lib.hku.hk/hkuto/record/B37774396.
Повний текст джерелаCruickshank, Amy Clare. "Nanostructured Metal Electrodes for Wool Processing and Electroanalysis." Thesis, University of Canterbury. Chemistry, 2007. http://hdl.handle.net/10092/3853.
Повний текст джерелаAlwhshe, Brnyia Omar Salem. "Synthesis and applications of nanostructured metal oxide films." Thesis, University of Sussex, 2016. http://sro.sussex.ac.uk/id/eprint/65099/.
Повний текст джерелаChao, Michelle (Michelle L. ). "Hydrophobic nanostructured glass surfaces using metal dewetting process." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111342.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (page 18).
This project aims to create a hydrophobic surface through a top down fabrication process of a nanostructure surface on a glass surface. The nanostructure is created through reactive ion etching utilizing silver as a mask. The silver mask is the result of a solid state thermal dewetting process which is controlled by varying the temperature and time of the process. Using this fabrication process, contact angles up to 137 degrees was achieved. Further surface modification resulted in contact angles exceeding 150 degrees. Superhydrophobic surfaces were made with the addition of a secondary roughness feature and the a PDMS coating.
by Michelle Chao.
S.B.
Murata, Yusuke. "Synthesis, Characterization and Application of Nanostructured Metal Oxides." Kyoto University, 2004. http://hdl.handle.net/2433/147421.
Повний текст джерела0048
新制・課程博士
博士(エネルギー科学)
甲第10975号
エネ博第86号
新制||エネ||24(附属図書館)
UT51-2004-G822
京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻
(主査)教授 足立 基齊, 教授 尾形 幸生, 教授 片桐 晃
学位規則第4条第1項該当
Wang, John S. "Pseudocapacitive effects in nanostructured transition metal oxide materials." Diss., Restricted to subscribing institutions, 2008. http://proquest.umi.com/pqdweb?did=1680034181&sid=11&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Повний текст джерелаCa, Diep Vu. "NANOSTRUCTURED ASSEMBLIES FOR SOLID PHASE EXTRACTION OF METAL IONS." Miami University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1107552000.
Повний текст джерелаPavasupree, Sorapong. "New aspects of nanostructured metal oxides as energy materials." Kyoto University, 2006. http://hdl.handle.net/2433/143794.
Повний текст джерела0048
新制・課程博士
博士(エネルギー科学)
甲第12420号
エネ博第127号
新制||エネ||32(附属図書館)
24256
UT51-2006-J411
京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻
(主査)教授 吉川 暹, 教授 八尾 健, 教授 萩原 理加
学位規則第4条第1項該当
Zhou, Lite. "Novel Nanostructured Metal Oxides for Efficient Solar Energy Conversion." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/510.
Повний текст джерелаMAGAGNA, STEFANO. "Thermoelectric nanostructured silicon obtained by Metal-assisted Chemical Etching." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2021. http://hdl.handle.net/10281/312087.
Повний текст джерелаThe necessity of sustainability in energy production and the continuous increasing of global warming, which leads to tremendous consequences, are among the most complicated challenges facedby humanity along its history. Reduction of the energy wastes anda strong energetic efficiency improvement are the most relevant solutions proposed, since nearly the 60 % of the energy generated around the world is wasted as heat. The possibility to recover even a small amount of this wasted energy could lead to a significant decrease of CO2 emission. Thermoelectric devices can actively contribute to this cause sincethey allow to generate electrical power even with small temperature gradients and without moving parts. Their efficiency is described by the figure of merit zT. Therefore, an ideal thermoelectric material should have, at the same time,good electrical properties combined to a low thermal conductivity ,a difficult challenge considering that, normally, a good electrical conductor is also a good thermal conductor. However, property modification at nanoscale opened a new pathway in thermoelectric materials research. The work of this PhD thesis is focused on the nanostructuration of a non-toxic, earth-abundant material such as Silicon. Due to the high thermal conductivity, bulk silicon is not suitable for thermoelectric application. Anyway, nanostructuration offers efficient and innovative ways to lower silicon thermal conductivity and to open novel opportunities to its usage as thermoelectric material. In the first part, the mechanism of Silver-assisted Chemical etching (SaCE), a one-step method chosen for the production of silicon NW will be presented. Particularly, the results of anextended analysis of the interplay among doping level and type of silicon, nanowire morphology and the parameters controlling thechemistry of SaCE will be shown. SaCE occurs at the outer substrate surface as a result of Si extrusion by sinking self-propelled Ag particles which causes Si flakes to be exposed at the outer solution-substrate. Here, the etching actually occurs through either 2- or 4-electron electrochemical oxidation of Si. NW surface is found to be either porous (potholed) or crystalline depending on the predominant electrochemical process. The prevalence of either 2- or4-electron processes is controlled by the material resistivity andtherefore by the voltage sensed by silicon. Two-electron processes occur at low voltages for conductive, heavily doped Si,and causes the formation of superficially potholed NWs. Four-electron processes occur for weakly doped Si and lead to fully crystalline NWs.Secondly, the production, by means of SaCE, and the characterization of a recently introduced category of material, the so-called Nanophononic Metamaterial (NPM), will be presented. This material is composed by an array of silicon nanopillars on top of a silicon thin film. The hybridization of the locally-resonant phonon modes introduced by the NWs with membrane phonon modes leads to a thermal conductivity reduction. NPM demonstrates to retain electrical and thermal conductivity of the wafer from which it is etched. Preliminary thermal measurements showed a thermal conductivity reduction of 2/3 with respect of bulk silicon. In the third part, the characterization of heavily doped Si NWs arrays, produced by SaCE, will be presented. This kind of arrays shows very low thermal conductivity (around 2 W/ (m K)) and a Seebeck coefficient comparable with that of heavily doped bulk silicon. Anyway, due to the presence of the substrate (very thick if compared with NWs length), it is complicated to have a precise measurement of NW resistivity. To overcome this issue, a new structure exclusively made of NWs and free from any substrate contribution will be presented.
Jain, Prashant K. "Plasmons in assembled metal nanostructures." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/28207.
Повний текст джерелаCommittee Chair: El-Sayed, Mostafa A.; Committee Member: Lyon, L. Andrew; Committee Member: Sherrill, C. David; Committee Member: Wang, Zhong Lin; Committee Member: Whetten, Robert L.
Cao, Shuai. "Nanostructured metal-organic frameworks and their amorphization, carbonization and applications." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.707948.
Повний текст джерелаAjayi, Olawale Adebimpe. "DC and RF Characterization of High Frequency ALD Enhanced Nanostructured Metal-Insulator-Metal Diodes." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5166.
Повний текст джерелаChen, Jingyi. "Synthesis and utilization of metal nanostructures /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/11547.
Повний текст джерелаKojima, Robert Wataru. "Nanostructured composites conducting polymers and metal salts and their applications /." Diss., Restricted to subscribing institutions, 2010. http://proquest.umi.com/pqdweb?did=2026906701&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.
Повний текст джерелаYi, Jue-Min. "Diffraction of single holes through planar and nanostructured metal films." Phd thesis, Université de Strasbourg, 2013. http://tel.archives-ouvertes.fr/tel-01018454.
Повний текст джерелаGonçalves, Alexandre Amormino Dos Santos. "Development of Nanostructured Ceramic Catalysts Based on Mixed Metal Oxides." Kent State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=kent1543412496976455.
Повний текст джерелаCibrev, Dejan. "Photoelectrocatalytic and photoelectrochromic properties of composite nanostructured metal oxide films." Doctoral thesis, Universidad de Alicante, 2019. http://hdl.handle.net/10045/99689.
Повний текст джерелаLam, Koon Fung. "Selective adsorption of metal ions by chemically-modified MCM-41 /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?EVNG%202006%20LAM.
Повний текст джерелаBansal, Shubhra. "Characterization of Nanostructured Metals and Metal Nanowires for Ultra-High Density Chip-to-Package Interconnections." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14041.
Повний текст джерелаMott, Derrick M. "Synthesis, characterization, and catalysis of metal nanoparticles." Diss., Online access via UMI:, 2008.
Знайти повний текст джерелаMasson, Sian Esther. "The detection of VOCs using sensors based on nanostructured metal oxides." Thesis, Bangor University, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.443647.
Повний текст джерелаMarwan, Jan. "The electrodeposition and electrochemical properties of nanostructured (Hâ‚-e) metal films." Thesis, University of Southampton, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252369.
Повний текст джерелаFigueras, Valls Marc. "Nanostructured transition metal carbides as potential catalysts for greenhouse gases conversion." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/673020.
Повний текст джерелаEn els darreres dècades, diversos estudis han revelat la precària situació climàtica que està amenaçant totes les formes de vida a la terra, inclosa la humanitat, encara que de vegades tendim a ignorar la fragilitat de la nostra situació. Irònicament, l’espècie humana és l’origen del ràpid canvi climàtic, principalment per practicar activitats insostenibles, com el consum no regulat de combustibles fòssils, la desforestació excessiva, l’agricultura extensiva i la ramaderia intensiva. Totes aquestes pràctiques han augmentat la concentració de gasos d’efecte hivernacle a l’atmosfera, produint un ràpid augment de la temperatura mitjana de la Terra amb conseqüències notables fins i tot durant la nostra vida. No obstant això, la comunitat científica està realitzant diversos esforços per revertir la alarmant situació climàtica, fins i tot si la societat actua amb retard. Una de les rutes de treball implica l’ús de catalitzadors per capturar i convertir els gasos d’efecte hivernacle en productes químics menys nocius i més útils. Aquesta ruta ha trobat en els carburs de metalls de transició (TMC) candidats competents que podrien tenir un impacte important en la reactivitat esmentada. L’aspecte més interessant dels TMCs és la seva capacitat per catalitzar aquestes reaccions de transformació a baixes temperatures i per suportar diversos cicles de reacció sense degradar-se. Precisament, aquesta Tesi revela i analitza diversos mecanismes de reacció implicats en les reaccions de transformació dels gasos d’efecte hivernacle catalitzades pels TMC, concretament, centrant-se en les nanopartícules de MoCy, que encara romanen inexplorades. Aquesta tesi combina enfocaments experimentals i teòrics per explicar les evidències experimentals observades, on les nanopartícules de MoC sintetitzades suportades sobre Au (111) són capaces d’activar el metà a temperatura ambient, hidrogenar CO2 i actuar com a esponges H2 superiors respecte a les superfícies netes de MoC. A més, altres descobriments importants han estat revelats, com ara la reconstrucció d’algunes superfícies de TMC/TMN i la naturalesa química intrínseca de les nanopartícules de MoC netes pel que fa a les reaccions d’hidrogenació. En general, la present dissertació té la intenció de fomentar nous esforços en el desenvolupament de catalitzadors basats en TMCs que puguin ser utilitzats a nivell industrial. La secció experimental d’aquesta tesi s’ha dut a terme al Brookhaven National Laboratory pel grup del professor J. A. Rodriguez, mentre que la part computacional i l’anàlisi de resultats s’ha dut a terme a la present institució, la Universitat de Barcelona. Els resultats obtinguts han donat lloc a diverses publicacions conjuntes.
Gcilitshana, Oko Unathi. "Supercapacitor electrode materials based on nanostructured conducting polymers and metal oxides." Thesis, University of the Western Cape, 2013. http://hdl.handle.net/11394/3532.
Повний текст джерелаKitiyanan, Athapol. "Dye-sensitized solar cell using nanostructured TiO2-based binary metal oxides." Kyoto University, 2006. http://hdl.handle.net/2433/143796.
Повний текст джерела0048
新制・課程博士
博士(エネルギー科学)
甲第12422号
エネ博第129号
新制||エネ||32(附属図書館)
24258
UT51-2006-J413
京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻
(主査)教授 吉川 暹, 教授 八尾 健, 教授 萩原 理加
学位規則第4条第1項該当
Oloye, Olawale. "Design and engineering of nanostructured liquid metal composites for catalytic applications." Thesis, Queensland University of Technology, 2022. https://eprints.qut.edu.au/227405/1/Olawale_Oloye_Thesis.pdf.
Повний текст джерелаSayeed, Md Abu. "Electrochemical fabrication of nanostructured metal oxides for the oxygen evolution reaction." Thesis, Queensland University of Technology, 2018. https://eprints.qut.edu.au/116769/1/Md%20Abu_Sayeed_Thesis.pdf.
Повний текст джерелаSibanyoni, Johannes Mlandu. "Nanostructured light weight hydrogen storage materials." University of the Western Cape, 2012. http://hdl.handle.net/11394/4631.
Повний текст джерелаThe main objective of this study was to advance kinetic performances of formation and decomposition of magnesium hydride by design strategies which include high energy ball milling in hydrogen (HRBM), in combination with the introduction of catalytic/dopant additives. In this regard, the transformation of Mg → MgH2 by high energy reactive ball milling in hydrogen atmosphere (HRBM) of Mg with various additives to yield nanostructured composite hydrogen storage materials was studied using in situ pressure-temperature monitoring that allowed to get time-resolved results about hydrogenation behaviour during HRBM. The as-prepared and re-hydrogenated nanocomposites were characterized using XRD, high-resolution SEM and TEM, as well as measurements of the mean particle size. Dehydrogenation performances of the nanocomposites were studied by DSC / TGA and TDS; and the re-hydrogenation behaviour was investigated using Sieverts volumetric technique.
Cho, Joungmo. "Computational studies of reacting flows with applications in nanoscale materials synthesis." Amherst, Mass. : University of Massachusetts Amherst, 2009. http://scholarworks.umass.edu/dissertations/AAI3372259/.
Повний текст джерелаZheng, Jie. "Fluorescent noble metal nanoclusters." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-04182005-161511/.
Повний текст джерелаWang, Zhong Lin, Committee Member ; Whetten, Robert L., Committee Member ; El-Sayed, Mostafa A., Committee Member ; Dickson, Robert M., Committee Chair ; Lyon, Andrew L., Committee Member.
Arbiol, i. Cobos Jordi. "Metal Additive Distribution in TiO2 and SnO2 Semiconductor Gas Sensor Nanostructured Materials." Doctoral thesis, Universitat de Barcelona, 2001. http://hdl.handle.net/10803/1503.
Повний текст джерелаIn the present work, we have been especially interested in the study of the different ways of metal additive distribution in the most common SGS materials used nowadays and furthermore in the physical and chemical sensing properties they can achieve.
Gràcia, Lanas Sara Isabel. "Fluoride and metal ions removal from water by adsorption on nanostructured materials." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/403774.
Повний текст джерелаNowadays the environmental pollution is a great global enemy, being one of the problems that most affect the whole world. This PhD thesis focuses on the elimination of certain aqueous contaminants, such as fluoride or different metal ions. Nanostructured materials have been applied as innovative adsorption method to remove the aforementioned pollutants. These materials present a high surface area in a very small volume, being ideal materials for the treatment of wastewater. The first chapter of the thesis focuses on the removal of fluoride from contaminated water. Hierarchical alumina microspheres (HAM) have been selected as the optimum material, due to their high surface area and porosity, as well as the stability of the material. HAM have been synthesized using the published methodology with significant modifications, and have subsequently been fully characterized with techniques such as SEM, TEM, XRD, DLS or BET. Potentiometric studies have been performed to determine the fluoride remaining in solution. The obtained results have been adjusted with the Langmuir and Freundlich model to describe the adsorption mechanism. Accurate data on the enthalpy associated to the adsorption process allow the design of the best conditions both for the uptake and for the eventual successive release of a given chemical species. In previous works, the enthalpy associated to fluoride adsorption (∆Hads) has been calculated by the van’t Hoff equation. However, many studies considered the discrepancies between enthalpy obtained directly (ITC) and from van’t Hoff equation and evidenced the large uncertainties associated to the latter method. In this work, ITC is applied for the first time to obtain direct determination of ∆Hads for fluoride ion adsorption by HAM to provide independent and more robust thermodynamic parameters. The second part of the thesis focuses on the removal of heavy and precious metals from contaminated water. In this case, magnetic nanoparticles (SPION, Super Paramagentic Iron Oxide Nanoparticles) have been chosen as adsorbent. Magnetic materials may represent an interesting tool for the removal/recovery of metal ions from aqueous media, as they can be dispersed in the sample and easily recovered by using a magnetic field. However, for the adsorption of metal ions, the unmodified SPION has been demonstrated to have a small adsorption capacity. One of the advantages of this material is that its surface is easily modifiable by adding an organic ligand. Therefore, following the HSAB theory, ligands with functional groups such as -SH or -RSR- have been selected for SPION modification. The aim of this study is to synthesize and functionalize SPION with sulphur containing groups for the selective removal of heavy metals and for the recovery of precious metals from water, characterizing the adsorption processes in terms of loading capacity and thermodynamic parameters. SPION have been synthesized and functionalized with 3-mercaptopropionic acid (3-MPA) following the procedure published in the literature and then characterized by SEM, TEM, BET, FT-IR, XRD and TGA, while the metal adsorption process has been studied using a new methodology, which combines ICP and ITC. While in previous works ΔHads (adsorption enthalpy) related to metal adsorption have been calculated by the van’t Hoff equation, ITC is applied for the first time for the direct determination of ΔHads. Data obtained by ICP have been fitted with a Langmuir isotherm to obtain the value of the adsorption constant (Kads). Then, the Kads has been used to calculate the free metal concentration for each titrant addition in the calorimetric titrations in order to fit the experimental heat and ultimately obtain the ΔHads value for the metal adsorption. Moreover, ITC is also applied as a screening of the adsorbent material, in order to discriminate the optimal candidate for metal removal/recovery applications.
Pruna, Morales Raquel. "Transparent nanostructured metal oxides for chemical biosensors: towards point-of-care environments." Doctoral thesis, Universitat de Barcelona, 2019. http://hdl.handle.net/10803/667646.
Повний текст джерелаExiste una creciente necesidad de desarrollar sistemas de punto de cuidado (POC) innovadores, versátiles y de bajo coste, capaces de detectar enfermedades en estadios de desarrollo tempranos. Un sistema POC consiste en un biosensor integrado en un sistema electrónico y eventualmente un sistema microfluídico que gestione las muestras de fluidos biológicos. El objetivo general de esta tesis es investigar distintas posibilidades de mejorar la tecnología POC. Los sistemas biosensores actualmente integrados en sistemas POC son limitados, y requieren de métodos que se apoyen en un potente sistema electrónico. Para esto, se requiere por un lado de sustratos adecuados que permitan tanto el acoplo de biomoléculas como la detección de reacciones químicas ocurridas en su superficie; por otro lado, es necesaria una potente circuitería electrónica que pueda ser miniaturizada y de bajo consumo. Los biosensores electroquímicos y ópticos han tomado mucha relevancia en sistemas POC debido a su alta sensibilidad y especificidad, aunque éstas pueden verse gravemente afectadas por la miniaturización de los dispositivos. Por ello, la elevada relación superficie-volumen que presentan las nanoestructuras las hace especialmente interesantes para biodetección. En esta tesis, se propone el óxido de indio dopado con estaño (ITO) nanoestructurado como material de electrodo de trabajo en biosensores electroquímicos. En la primera parte de esta tesis se han estudiado las propiedades del ITO, y se ha caracterizado eléctrica, óptica, electroquímica y estructuralmente, a partir de muestras preparadas sobre silicio y sobre vidrio mediante evaporación por haz de electrones. Se ha estudiado su interacción con moléculas crosslinkers, y se han realizado varios inmunoensayos usando el ITO nanoestructurado como sustrato. Se han estudiado distintos mecanismos de medida de sensores electroquímicos; por espectroscopía de impedancias se han detectado distintas concentraciones del biomarcador TNF-α. Se ha diseñado la electrónica necesaria para realizar medidas de amperometría con dos electrodos, así como de potenciometría, ensayando este último sistema con ITO nanoestructurado y modificado sensible a cambios de pH. En síntesis, esta tesis recoge algunas propuestas para la mejora de los sistemas POC actuales, tanto en la cuestión biosensora como en la parte electrónica, usando para las medidas y pruebas de concepto un biomarcador importante en el ámbito biomédico.
Rattanavoravipa, Thitima. "Studies on surface modification of nanostructured metal oxide for hybrid solar cells." Kyoto University, 2009. http://hdl.handle.net/2433/126414.
Повний текст джерела0048
新制・課程博士
博士(エネルギー科学)
甲第14965号
エネ博第208号
新制||エネ||46(附属図書館)
27403
UT51-2009-M879
京都大学大学院エネルギー科学研究科エネルギー基礎科学専攻
(主査)准教授 佐川 尚, 教授 八尾 健, 教授 萩原 理加
学位規則第4条第1項該当
Coleman, Nicholas Richard Boldero. "Direct liquid crystal templating of mesoporous silica and platinum." Thesis, University of Southampton, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302011.
Повний текст джерелаJohnson, Ryan David. "Adhesion and deformation during thermocompression bonding of vertically aligned carbon nanotube turfs to metallized substrates." Pullman, Wash. : Washington State University, 2008. http://www.dissertations.wsu.edu/Thesis/Fall2008/r_johnson_120808.pdf.
Повний текст джерелаTitle from PDF title page (viewed on Mar. 3, 2009). "Department of Mechanical and Materials Engineering." Includes bibliographical references.
Olea, Mejía Oscar Fernando Brostow Witold. "Micro and nano composites composed of a polymer matrix and a metal disperse phase." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5135.
Повний текст джерелаSu, Zixue. "Porous anodic metal oxides." Thesis, University of St Andrews, 2010. http://hdl.handle.net/10023/1019.
Повний текст джерелаFung, Kin-Hung. "Theoretical study of the plasmonic modes of metal nanoparticle arrays and their optical responses /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?PHYS%202008%20FUNG.
Повний текст джерелаOgbazghi, Asmerom Yemane. "Conductance through Nanometer-scale Metal-to-Graphite Contacts." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6872.
Повний текст джерелаKijak, Anna M. "Analytical Preconcentration Systems Based on Nanostructured Materials." Miami University / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=miami1049915571.
Повний текст джерела