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Tesis sobre el tema "SERS SUBSTRAT"

Autor: Grafiati

Publicado: 22 de febrero de 2025

Última modificación: 31 de julio de 2025

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1

Gillibert, Raymond. "Développement d’un substrat SPRi/SERS pour des applications en détection moléculaire." Thesis, Sorbonne Paris Cité, 2017. http://www.theses.fr/2017USPCD003/document.

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Dans cette thèse, nous décrivons sommairement les techniques utilisées qui sont l’imagerie parrésonance plasmon de surface (SPRi) et la diffusion Raman exaltée de surface (SERS). Le butprincipal du projet Piranex dans lequel la thèse s’inscrit consiste au développement d’une biopucenanostructurée bimodale permettant le couplage des deux techniques SPRi et SERS. Cettebiopuce est constituée d’un film d’or par-dessus lequel nous avons déposé un réseau carré denanocylindres en or. Un ensemble d’études ont été effectuées pour caractériser ses propriétésplasmoniques du biocapteur afin d’en optimiser

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2

Dridi, Hamida. "Méthodologies pour la réalisation d'un substrat SERS à base de silicium poreux pour la détection de molécules chimiques et biologiques." Thesis, Rennes 1, 2015. http://www.theses.fr/2015REN1S012/document.

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Le travail de cette thèse porte sur la réalisation de substrats SERS (Surface Enhanced Raman Scattering) pour la détection d'espèce chimiques et biologiques. Il s'agit de mettre en place des méthodologies utilisant comme surface de départ celle d'une couche poreuse de silicium et un effet de Plasmon de surface induit par la présence d'un métal noble en général. Les spécificités des couches poreuses qui sont d'une part une rugosité nanométrique et d'autre part une porosité et donc une surface interne modulable ont une incidence directe sur la sensibilité de détection de molécules cibles. Nous a

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3

Iakab, Stefania-Alexandra. "Gold-Coated Black Silicon Nanostructured Surfaces for SERS and SALDI-MS Multimodal Imaging of Biological Applications." Doctoral thesis, Universitat Rovira i Virgili, 2021. http://hdl.handle.net/10803/672198.

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La caracterització in situ de la composició molecular dels teixits biològics és indispensable en la investigació clínica, farmacèutica i forense. Les tècniques d’imatge molecular, com l’espectrometria de masses d’imatge i les imatges per espectroscòpia Raman, empren materials nanoestructurats per abordar reptes com la baixa sensibilitat, l’especificitat i la resolució lateral. L’objectiu d’aquesta tesi és dissenyar, fabricar, avaluar i aplicar un substrat nanoestructurat basat en or i silici (que denominem “AuBSi”) compatible amb aplicacions d’espectrometria de masses d’imatges per desorció/io

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4

Azziz, Aicha. "Étude structurale des brins d'ADN et de leurs interactions par diffusion Raman exaltée de surface." Electronic Thesis or Diss., Le Mans, 2024. https://cyberdoc-int.univ-lemans.fr/Theses/2024/2024LEMA1024.pdf.

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Le développement de méthodes rapides et sensibles de détection et d’étude de l’ADN suscite un intérêt croissant notamment dans le domaine biomédical pour le diagnostic moléculaire.Dans ce cadre, la technique de diffusion Raman exaltée de surface (SERS) s’est révélée être un outil idéal pour l'étude de la structure des brins d'ADN et des interactions moléculaires entre deux brins d'ADN.Dans un premier temps, nous avons évalué les capacités de détection de plusieurs substrats SERS commerciaux en utilisant une solution diluée de 4-MBA. Cette étude nous a permis de déterminer quel substrat présent

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5

Rahmani, Meryem. "Analyses Raman multispectrales exaltées pour la détection de molécules sous forme de trace." Electronic Thesis or Diss., Le Mans, 2024. http://www.theses.fr/2024LEMA1004.

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Au cours des dernières décennies, l'utilisation des produits phytosanitaires communément appelés pesticides a augmenté. Ces substances sont devenues de plus en plus présentes dans notre environnement, s’'accumulant ainsi dans les sols, l'air et les eaux. Ces produits, même en très faible concentration, représentent un danger pour la santé humaine, végétale et animale. Pour toutes ces raisons il est important d'encadrer l'utilisation des produits phytosanitaires en interdisant l'utilisation de certaines de ces substances et en mettant en place des réglementations pour fixer les Limites Maximale

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6

Michel, Beat A. "Phénomène, sens et substrat : pour une métaphysique phénoménologique." Thesis, Paris 10, 2020. http://www.theses.fr/2020PA100056.

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Quel est le substrat de la conscience, ou encore « qu’est-ce qui fait la conscience » ? Poser cette question revient à ne pas se satisfaire d'une réponse, qui peut paraître aller de soi, affirmant que ce substrat est le cerveau. En fait, situer le substrat de la conscience dans le corps objectif, comme partie du monde – que ce soit dans le contexte de la phénoménologie, de la philosophie de l’esprit ou du naturalisme – mène à une ontologie circulaire : la conscience dans le corps, le corps dans le monde, le monde pensé, perçu, conçu, constitué par la conscience. Or, même si toute circularité n

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7

Speed, Jonathon. "Tailoring plasmonic substrates for SERS." Thesis, University of Southampton, 2011. https://eprints.soton.ac.uk/191315/.

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SERS is a useful spectroscopic technique that was discovered 30 years ago, and has recently seen a renaissance in research. Sphere segment void (SSV) substrates have been developed as reproducible, stable SERS substrates by electrodeposition of a metal through a colloidal template. The effect of adsorbing an organic monolayer on the surface of an SSV substrate was studied, which results in a slight shift in the plasmonic absorption. This was compared with the reduction of a diazonium salt on the surface, which results in a significant increase in plasmonic absorption, attributed to a physical

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8

Eliasson, Kasper. "Quantification using SERS on a colloidal substrate." Thesis, Uppsala universitet, Fasta tillståndets fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-443582.

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This thesis explores the practical usefulness of surface enhanced Raman spectroscopy on a colloidal substrate for quantification of organic analytes in a water matrix. The method evaluated is very simple and accessible as it utilizes a commercially available hand held Raman spectrometer and citrate reduced silver colloid substrate. Spectra of 4-mercaptopyridine (Mpy) and riboflavin (Rf) samples in distilled water were recorded. A Raman enhancement factor on the order of 108 was achieved for Mpy and its limit of detection was 0.1 nM. The standard deviation of Mpy intensity was <10% for 25 nM

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9

Yan, Bo. "Rationally designed substrates for SERS biosensing." Thesis, Boston University, 2013. https://hdl.handle.net/2144/12894.

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Thesis (Ph.D.)--Boston University<br>The large electromagnetic field enhancement provided by nanostructured noble metal surfaces forms the foundation for a series of enabling optical analytical techniques, such as surface enhanced Raman spectroscopy (SERS), surface enhanced IR absorption spectroscopy (SEIRA), surface enhanced fluorescent microscopy (SEF), to name only a few. Critical sensing applications have, however, other substrate requirements than mere peak signal enhancement. The substrate needs to be reliable, provide reproducible signal enhancements, and be amenable to a combination wi

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10

Sharma, Narayan. "Solution Processable Surface Enhanced Raman Spectroscopy (SERS) Substrate." Bowling Green State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1434375587.

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11

Ahmad, Hossam [Verfasser], Heinz-Detlef [Akademischer Betreuer] Kronfeldt, Ulrike [Akademischer Betreuer] Woggon, and Frank [Akademischer Betreuer] Hubenthal. "Gold substrates for SERS and SERS/SERDS measurements in seawater and Raman measurements through long optical fibers / Hossam Ahmad. Gutachter: Heinz-Detlef Kronfeldt ; Ulrike Woggon ; Frank Hubenthal." Berlin : Technische Universität Berlin, 2014. http://nbn-resolving.de/urn:nbn:de:kobv:83-opus4-48713.

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12

Ahmad, Hossam [Verfasser], Heinz-Detlef Akademischer Betreuer] Kronfeldt, Ulrike [Akademischer Betreuer] [Woggon, and Frank [Akademischer Betreuer] Hubenthal. "Gold substrates for SERS and SERS/SERDS measurements in seawater and Raman measurements through long optical fibers / Hossam Ahmad. Gutachter: Heinz-Detlef Kronfeldt ; Ulrike Woggon ; Frank Hubenthal." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1065669534/34.

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13

Ahmad, Hossam Verfasser], Heinz-Detlef [Akademischer Betreuer] Kronfeldt, Ulrike [Akademischer Betreuer] [Woggon, and Frank [Akademischer Betreuer] Hubenthal. "Gold substrates for SERS and SERS/SERDS measurements in seawater and Raman measurements through long optical fibers / Hossam Ahmad. Gutachter: Heinz-Detlef Kronfeldt ; Ulrike Woggon ; Frank Hubenthal." Berlin : Technische Universität Berlin, 2014. http://d-nb.info/1065669534/34.

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14

Marotta, Nicole Ella. "Patterned nanoarray sers substrates for pathogen detection." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/37274.

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The objectives of the work presented were to 1) fabricate reproducible nanorod array SERS substrates, 2) detection of bacteria using nanorod substrates, 3) detection of DNA hybridization using nanorod substrates and 4) critically evaluate the sensing method. Important findings from this work are as follows. A novel method for batch fabrication of substrates for surface enhanced Raman scattering (SERS) has been developed using a modified platen machined to fit in a commercial electron beam evaporator. The use of this holder enables simultaneous deposition of silver nanorod (AgNR) arrays on

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15

Mahajan, Sumeet. "Engineering substrates for SERS : Fundamentals and applications." Thesis, University of Southampton, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533255.

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16

Callahan, Jordan J. "Silver-embedded ZSM-5 Zeolites: a Reliable SERS Substrate." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1342104242.

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17

Pereira, Anderson de Jesus. "Substratos vítreos com nanoestruturas metálicas para aplicações SERS." Universidade Federal de Viçosa, 2016. http://www.locus.ufv.br/handle/123456789/9872.

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Submitted by Marco Antônio de Ramos Chagas (mchagas@ufv.br) on 2017-03-23T17:48:32Z No. of bitstreams: 1 texto completo.pdf: 5471239 bytes, checksum: 75e65b6389b6e94ee7f496ab984437dd (MD5)<br>Made available in DSpace on 2017-03-23T17:48:32Z (GMT). No. of bitstreams: 1 texto completo.pdf: 5471239 bytes, checksum: 75e65b6389b6e94ee7f496ab984437dd (MD5) Previous issue date: 2016-08-25<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Filmes finos metálicos nanoestruturados têm despertado considerável interesse devido à sua ca- pacidade de produzir Ressonância de Plasmons de

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18

Han, Sungyub. "Optimization of Aggregating agents and SERS Substrates for SERS detection of Cotinine and trans 3'-hydroxycotinine." Scholar Commons, 2015. https://scholarcommons.usf.edu/etd/5499.

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This dissertation mainly focuses on applications of Surface Enhance Raman Scattering (SERS) to detect tobacco-related biomarkers with optimized experimental conditions (pH and aggregating agents) and SERS substrates (silica core and silver shell nanoparticles). Cotinine (COT) and trans 3-hydroxycotinine (3HC), metabolized from nicotine as one of main chemicals of tobacco, have been used as tobacco biomarkers because their half-life are longer than that of nicotine, which enable to monitor the tobacco exposure. The effects of aggregating agents and pH on SERS detection of COT and 3HC were inves

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19

Wilhelm, Manon. "Development of SERS substrates of metal nanoparticles and textile fibers." Master's thesis, Universidade de Aveiro, 2015. http://hdl.handle.net/10773/15336.

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Mestrado em Ciência e Engenharia de Materiais<br>Noble metallic nanostructures are well-known materials that present interesting physical and chemical properties, especially the surface plasmon resonance involved in the surface-enhanced Raman signal (SERS) of molecules adsorbed at the metal surface. Since its discovery, the SERS method is a highly studied analysis technique that allows detecting molecules at very low concentration. Numerous works are currently leaded to develop more efficient SERS substrates to lower the detection limit. Also, the development of more convenient substrates, eve

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20

Merces, Leandro 1989. "Nanomembranas tensionadas : ilhas de InAs em substratos complacentes de Si e microtubos metálicos enrolados como um sensor SERS para monocamadas auto organizadas." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/276952.

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Orientadores: Christoph Friedrich Deneke, Eduardo Granado Monteiro da Silva<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Física Gleb Wataghin<br>Made available in DSpace on 2018-08-25T16:50:29Z (GMT). No. of bitstreams: 1 MercesSilva_Leandrodas_M.pdf: 8926273 bytes, checksum: 010f49f410852b0ba0278adfc3e091fa (MD5) Previous issue date: 2014<br>Resumo: Nanomembranas livres são definidas como filmes ultrafinos constituídos por metais, óxidos ou semicondutores, com espessuras nanométricas e vastas áreas superficiais. São obtidas em geral por um processo de subcorro

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21

Wijesuriya, Shavini. "Fabrication and optimisation of SERS substrates for medical diagnostics and monitoring." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12694.

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Surface enhanced Raman spectroscopy (SERS) has great potential for design of next generation point-of-care (POC) diagnostic devices. However, its practical application in medical diagnosis is limited due to high cost of SERS substrates. The goal for this thesis was to develop affordable SERS substrates, and demonstrate their efficacy in the detection and assay of a Raman probe and diabetes biomarkers, using 514nm and 1064nm Raman spectrometers. Rapid and less energy intensive methods were optimised for manufacturing three categories of SERS substrates: 1) chemically roughened silver (Ag) metal

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22

Pelfrey, Suzanne Helen. "Tuneable photonic crystal structures as highly reproducible surface enhanced Raman (SERS) substrates." Thesis, University of Southampton, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494729.

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SERS is a very useful analytical technique which was discovered over 30 years ago, however it has never fulfilled its potential due to inherently irreproducible surfaces used to enhance the Raman signals. If a robust and reliable surface was to be produced SERS could have applications in trace drug detection and catalytic reactions amongst others. Gold nanostructured void surfaces have been produced which yield full control over the enhancement, simply by tuning the surface to the correct layer wavelength. It was discovered that SER signals varied depending on the void size and film thickness,

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23

ESPOSITO, ALESSANDRO. "Sviluppo e caratterizzazione di substrati SERS label-free per analisi di biofluidi e applicazioni biomediche." Doctoral thesis, Università degli Studi di Trieste, 2022. http://hdl.handle.net/11368/3030740.

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Surface Enhanced Raman spectroscopy is a powerful analytical technique, in which are combined high sensitivity and chemical species recognition, which are provided by the surface signal enhancement and the vibrational fingerprinting of the Raman spectroscopy, respectively. Thus, the inelastic scattering (or Raman scattering) of the light is used to capture so-called Raman active vibrations in presence of an external source of light. On the base of this phenomenon, unique vibration can allow identifying with high selectivity a tremendous number of chemical structures. But, Raman scattering is d

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24

Dogan, Uzeyir. "Preparation And Characterization Of Surface Enhanced Raman Scattering Substrate Through Electro Deposition Of Silver-pedot Film On Ito Glass Surface." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613667/index.pdf.

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Detection of chemicals is a vital part of chemistry. For this reason, many detection systems are developed by scientists and every detection system has its own advantages. Raman spectroscopy is one of these detection systems having many advantages. However, this technique suffers from low signal intensity disadvantage. By developing a well prepared substrate, this problem can be easily solved<br>moreover, even single molecule detection can be possible. In this study, a novel surface enhanced Raman scattering (SERS) substrate was prepared in two steps: In the first step, ethylenedioxythiophene

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25

ZALAFFI, MARIA SOLE. "Metal nanostructures decorated with silver nanostars: a novel highly efficient SERS substrate for dyes and pigments detection." Doctoral thesis, Università degli Studi di Trieste, 2020. http://hdl.handle.net/11368/2963765.

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The detection of artistic molecules such as dyes and/or pictorial binders employed in the field of Cultural Heritage requires more and more sensitive techniques. The surface enhanced Raman spectroscopy (SERS) represents a valuable option due to its ability to reveal molecules adsorbed or bound onto nanostructured interfaces. In order to maximize the enhancement of the Raman effect, different Ag and Au nanomaterials where bound together to produce hierarchical structures. In particular, silver nanostars (AgNSs) were chosen because of the strong enhancement caused by their anisotropic shape and

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26

Panarin, Andrei Yu. "Mise au point, étude et applications de matériaux poreux recouverts d'argent en tant que substrats SERS-actifs." Paris 6, 2010. http://www.theses.fr/2010PA066084.

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27

Pacaud, Mathias. "Synthesis and physico-chemical evaluation of gold nanoflowers (AuNFs) as new substrates for bioanalytical SERS." Thesis, Tours, 2019. http://www.theses.fr/2019TOUR3804.

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Un immense intérêt est porté sur les nanostructures métalliques anisotropes d’or (AuNFs) qui s’explique par les propriétés uniques qu’elles procurent et qui peuvent servir dans divers domaines, notamment dans le biomédicale. On cherche à maitriser leurs propriétés optiques liées aux oscillations collectives d’électrons de surface appelées plasmons. Elles possèdent une bande de résonance plasmonique localisée de surface (LSPR, comme localized surface plasmon resonance) située dans le rouge - proche infrarouge (> 600 nm). Leur capacité d’interagir avec la lumière rouge - proche IR (fenêtre op

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28

Weber, Verena. "Plasmonic nanostructures for the realization of sensor based on surface enhanced Raman spectroscopy." Doctoral thesis, Università degli studi di Padova, 2014. http://hdl.handle.net/11577/3423838.

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The field of Plasmonics deals with interaction processes between an electromagnetic radiation of appropriate wavelength and the conduction electrons of a metal. The induced collective oscillation of the electrons is called Plasmon Resonance. The Localized Surface Plasmon Resonance (LSPR) occur when the excitation involves surface electrons of nanostructures with dimensions less or comparable to the excitation wavelength. The excitation causes a strong enhancement of the local field around the metal nanostructure, which, combined with Raman Spectroscopy, could be very interesting for molecular

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29

Vabbilisetty, Pratima. "Fabrication and Characterization of Substrate Materials for Trace Analytical Measurements by Surface Enhanced Raman Scattering (SERS) Spectroscopy Technique." Connect to resource online, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1231794465.

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30

Gorunmez, Zohre. "Finite-Difference Time-Domain (FDTD) Modeling of Nanoscale Plasmonic Substrates for Surface-Enhanced Raman Spectroscopy (SERS)." University of Cincinnati / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1563296001850111.

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31

Pierre-Bolivar, Marie Carmelle Serviane. "Synthesis and characterization of perm-selective SERS-active silica-coated gold nanospheres for the direct detection of small molecules." Diss., University of Iowa, 2013. https://ir.uiowa.edu/etd/5042.

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Noble metal nanomaterials have numerous uses in plasmonic and surface enhanced Raman scattering (SERS) detection applications; however, upon the addition of analytes, nanomaterials often undergo uncontrolled aggregation which leads to inconsistent signal intensities. To overcome this limitation, the effect of gold nanosphere concentration, column purification, and surface chemistry functionalization using internally etched silica stabilization methods was investigated on SERS assays for small molecule detection. Nanostructure composition, size, shape, stability, surface chemistry, optical prop

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32

Lima, Leandro Holanda Fernandes de. "Síntese e caracterização de compósitos de nanotubos de carbono e nanopartículas de prata e sua aplicação como substrato SERS." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/46/46136/tde-22102013-102146/.

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Neste trabalho foram produzidos compósitos de nanotubos de carbono contendo nanopartículas de prata, os quais foram testados como substratos SERS (Surface-enhanced Raman Spectroscopy) na detecção do cristal violeta. Para obter tais compósitos foram necessárias modificações de nanotubos de carbono através de funcionalizações químicas para inserção de grupos carboxila e tiol, capazes de interferir no crescimento de nanopartículas metálicas através de um processo de redução térmica do acetato de prata sobre a superfície das amostras de nanotubo. Para a preparação de tais compósitos foram utilizad

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33

Habouti, Salah [Verfasser]. "Herstellung substratgestützter, nanoporöser Aluminiumoxid-Template und ihre Anwendung für die Präparation von hocheffizienten SERS-Substraten / Salah Habouti." Kiel : Universitätsbibliothek Kiel, 2015. http://d-nb.info/1065232918/34.

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34

DALLA, MARTA SILVIA. "Development of nanostructured substrates for quantification of anticancer drugs in biofluids with Surface Enhanced Raman Scattering (SERS)." Doctoral thesis, Università degli Studi di Trieste, 2017. http://hdl.handle.net/11368/2908137.

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To date, therapeutic drug monitoring (TDM), that is the quantification of anticancer drugs in biofluids of oncological patients, is expensive and time consuming. Such a quantitative determination is crucial for a successful chemotherapic treatment due to the high interpatient variability of the anticancer drugs levels in biofluids. A frequent TDM turns out to be necessary to limit as far as possible the heavy side-effects of the treatment. Thus, the development of a new Point Of Care (POC) tool for a faster and less expensive TDM is highly desirable. Surface Enhanced Raman Scattering (SERS) is

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35

Mareš, Petr. "Depozice Ga a GaN nanostruktur na křemíkový a grafenový substrát." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231443.

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Presented thesis is focused on the study of properties of Ga and GaN nanostructures on graphene. In the theoretical part of the thesis a problematics of graphene and GaN fabrication is discussed with a focus on the relation of Ga and GaN to graphene. The experimental part of the thesis deals with the depositions of Ga on transferred CVD-graphene on SiO2. The samples are analyzed by various methods (XPS, AFM, SEM, Raman spectroscopy, EDX). The properties of Ga on graphene are discussed with a focus on the surface enhanced Raman scattering effect. Furthermore, a deposition of Ga on exfoliated gr

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36

Letourneau, Guillaume. "Mouvements de sels en substrats organiques pour la culture de la tomate de serre." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/26776/26776.pdf.

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Létourneau, Guillaume. "Mouvements de sels en substrats organiques pour la culture de la tomate de serre." Master's thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/22399.

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L'utilisation de substrats composés de sous produits peut être envisagée par les producteurs serricoles pour diminuer leurs impacts environnementaux et favoriser un développement durable de l'industrie. Pour la culture de la tomate, des mélanges de sciures et de tourbe ont démontré leur potentiel, mais ces substrats sont sujets à une accumulation problématique de sels en cours de culture. Cette étude vise l'obtention d'une meilleure compréhension des phénomènes liés aux mouvements de sels dans les substrats de culture. Un essai de culture en serre de la tomate a été réalisé pour effectuer un s

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38

Alam, Md Khorshed. "Fabrication of surface enhanced Raman spectroscopy (SERS) active substrates based on vertically aligned nitrogen doped carbon nanotube forest." Thesis, Umeå universitet, Institutionen för fysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-101573.

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This thesis work describes the fabrication and surface enhanced Raman spectroscopy (SERS) characterization of vertically aligned nitrogen (N) doped multi walled carbon nanotube (MWCNT) forests coated by silver (Ag) and gold (Au) nanoparticles. In the present work, the CNT forests were grown from a catalyst metal layer by the chemical vapor deposition (CVD) process at temperature of 800 oC and a physical vapor deposition (PVD) and annealing processes were applied subsequently for the evaporation and diffusion of noble metal nanoparticles on the forest. Transistor patterning of 20, 50 and 100 μm

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39

Sanci, Rukiye. "Synthesis Of Colloidal Silver Particles With Different Sizes By Seeding Approach For Surface Enhanced Raman Scattering (sers) Studies." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611076/index.pdf.

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In this study, silver nanorods and nanospheroids were prepared both in aqueous solution and on the surface of glass slides through seed-mediated growth approach at room temperature and used as a surface enhanced Raman scattering (SERS) substrate. The synthesis of metallic nanorods was started with the production of silver nanospheres as seed utilizing sodium borohydride and trisodium citrate as reducing and capping agents, respectively. These seeds were then added to a growth solution containing additional silver salt, ascorbic acid and cetyltrimethylammonium bromide (CTAB.) Nanorod preparati

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Oliveira, Karolyne Vilela de. "Desenvolvimento de substrato para uso com efeito Raman intensificado por superfície (SERS – Surface-Enhanced Raman Scattering) e aplicações para compostos modelo." reponame:Repositório Institucional da UnB, 2015. http://dx.doi.org/10.26512/2015.12.D.20361.

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Dissertação (mestrado)—Universidade de Brasília, Instituto de Química, 2015.<br>Submitted by Fernanda Percia França (fernandafranca@bce.unb.br) on 2016-05-06T15:01:10Z No. of bitstreams: 1 2015_KarolyneVileladeOliveira.pdf: 4124843 bytes, checksum: a896d190db2a100ab397386387efb480 (MD5)<br>Approved for entry into archive by Raquel Viana(raquelviana@bce.unb.br) on 2016-05-23T18:18:59Z (GMT) No. of bitstreams: 1 2015_KarolyneVileladeOliveira.pdf: 4124843 bytes, checksum: a896d190db2a100ab397386387efb480 (MD5)<br>Made available in DSpace on 2016-05-23T18:18:59Z (GMT). No. of bitstreams: 1 20

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Sant\'Ana, Antonio Carlos. "Caracterização do ácido esquárico e materiais derivados por espectrocopia Raman intensificada (uso de substratos metálicos SERS de alto desempenho)." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/46/46132/tde-28112006-141248/.

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Nesta tese foram utilizadas as espectroscopias de espalhamento Raman intensificado pela superficie(Surface-EnhancedRaman Scattering- SERS) e Raman ressonante para monitorar a adsorção e o comportamento faradáico do ácido esquárico e seus derivados, além de um sal de transferência de carga de esquarato e tetratiofulvaleno e dois copolímeros de esquarato e pirróis. Outro tema desenvolvido neste estudo foi a construção de substratos SERS-ativos de elevado desempenho. A técnica SERS tem sido campo de grande interesse desde a detecção do espectro aman de uma única molécula, em 1997.O desenvolvimen

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Prokopec, V., J. Čejková, M. Singh, P. Matějka, and F. Štěpánek. "Use of Vibrational Spectroscopic Techniques for the Characterization of Structured Particles for Chemical Robots." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35158.

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This work is aimed at utilization of vibrational spectroscopic techniques for characterization of several types of structural particles suitable for the construction of chemical robots. Several case studies are presented and discussed: (i) PNIPAM-coated silica particles, (ii) surface-functionalized magnetic nanoparticles modified by citric and oleic acid, (iii) nanocomposit SERS-active substrates consisting of self-assembled monolayers of linear α,ω-aliphatic diammines with different lengths on Ag metal surface and a flat Ag electrode followed by testing of sensing activity of AD/NPs syst

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Bárdy, Stanislav. "Depozice Ga a GaN nanostruktur na vodíkem modifikovaný grafenový substrát." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254312.

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In this work we studied gallium on graphene. Depositions were done by Molecular beam epitaxy. We observed Raman enhancement and peak shifts by individual Ga islands. Simulation confirmed our assumption, that the enhancement is based on plasmonics effect that is also the main contribution of Surface-enhanced Raman spectroscopy. Another result is hydrogenation of graphene before deposition does have an effect on Ga structure and reduces diffusion length of Ga atoms.

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Combs, Zachary Allen. "Advanced substrate design for label-free detection of trace organic and biological molecules." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50314.

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To truly realize and exploit the extremely powerful information given from surface-enhanced Raman scattering (SERS) spectroscopy, it is critical to develop an understanding of how to design highly sensitive and selective substrates, produce specific and label-free spectra of target analytes, and fabricate long-lasting and in-the-field ready platforms for trace detection applications. The study presented in this dissertation investigated the application of two- and three-dimensional substrates composed of highly-ordered metal nanostructures. These systems were designed to specifically detect

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BERNARD, AGNES. "Mise au point de substrats actifs en sers (surface-enhanced raman spectroscopy) et application a l'analyse de traces de polluants en milieux aqueux." Paris, Institut national d'agronomie de Paris Grignon, 1997. http://www.theses.fr/1997INAP0019.

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En vue d'evaluer l'impact des produits chimiques sur l'environnement aquatique, l'industrie chimique cherche a developper des methodes analytiques lui permettant de controler rapidement la concentration de ces produits en solution aqueuse a l'etat de traces. Les techniques analytiques ne sont que rarement applicables directement aux solutions aqueuses. Pour cela, nous avons envisage l'utilisation de la spectrometrie de diffusion raman. Cette technique etant peu sensible, nous nous sommes interesses a l'effet surface-enhanced raman spectroscopy, phenomene qui permet d'amplifier le signal raman

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Hong, Seongmin. "Optimization, Modification and Application of Gold Nanoparticles as the Substrates of Surface Enhanced Raman Spectroscopy." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4819.

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Huang, Wen-Chi, and 黃文岐. "Study of recyclable SERS substrates." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/838v2z.

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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>107<br>This study attempted to develop recyclable and reusable SERS samples, and prepared separately powder type samples and substrate type samples for discussion. 　　The first part is to prepare a powder sample with a magnetic and SERS composite structure. Iron oxide (FexOy) with different magnetic properties (Strong or weak magnetic) or different structures (hollow or solid) are used as the core. The experimental results show that the sample prepared by hollow structure and magnetic iron oxide as the core [(H)Fe3O4@SiO2@Ag] has good magnetic and SERS performance.

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Lee, Cheng-Tao, and 李政道. "SERS in pre-blasted tungsten mold to press silvers as SERS-active substrates." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/64307816930700280213.

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Hsu, Jui-Hung, and 徐瑞鴻. "Silver Nanostructure for Efficient SERS Substrate and Electrochemical Detection." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/29hu8t.

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碩士<br>國立東華大學<br>光電工程學系<br>105<br>First, we use a simple dip-coating route to deposit silver nanowires (Ag NWs) on coffee filter (CF), which would function as a new type substrates of SERS and non-enzyme biosensor for detecting the H2O2 in this study. For SERS, the Ag NW/CF substrate exhibits low detection limit of 1x10-11 M for 4-Aminothiophenol (4-ATP). And for biosensor, the Ag NW/CF electrode exhibits detection limit of 0.1 mM and high sensitivity of 219 mAmM-1cm-2 for detection of H2O2 in concentration range 100 M ~ 25 mM. In order to find out the way to enhance the efficiency in the dete

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Wiercigroch, Ewelina. "Projektowanie nanoczujników SERS do detekcji markerów chorobowych." Praca doktorska, 2021. https://ruj.uj.edu.pl/xmlui/handle/item/289862.

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Selektywna i szybka detekcja biomarkerów w złożonych próbkach biologicznych ma zasadnicze znaczenie w wykrywaniu chorób, wdrażaniu skutecznego leczenia oraz monitorowania skuteczności wprowadzanych terapii. Rozwój narzędzi diagnostycznych, które umożliwiają ich lokalizację, a także ilościową ocenę z wysoką czułością i niezawodnością, przyczyniają się do lepszej i szybszej diagnostyki, co ma ogromny wpływ na rokowania pacjenta i jego szanse przeżycia. Testy oparte na reakcjach immunologicznych są jednymi z najczęściej stosowanych metod w wielu obszarach diagnostyki klinicznej oraz badań naukowy

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