About: Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure

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Description	Surface-enhanced Raman scattering (SERS) is a powerful technique of Raman signal detection of substances at a low concentration level. it allows observation of structural details of films with very small thicknesses. It is possible to achieve the enhancement of Raman signal of species located on the surface of properly prepared SERS-active substrates of up to ca 10(6). One of the main requirements for the substrate to be SERS-active is the proper roughness of the surface. In this work different SERS-active Au and Ag substrates suitable for spectral mapping were prepared using procedures which consisted of electrochemical deposition of metal layer and further roughening with oxidation-reduction cycles (ORC) treatment. The nanostructures of the metal surfaces were tested using atomic force microscopy (AFM). Monolayers formed both by covalent and noncovalent linkages to the metal surface were detected and Raman spectral maps were then measured. Roughening procedure of the substrates was optimized and its Surface-enhanced Raman scattering (SERS) is a powerful technique of Raman signal detection of substances at a low concentration level. it allows observation of structural details of films with very small thicknesses. It is possible to achieve the enhancement of Raman signal of species located on the surface of properly prepared SERS-active substrates of up to ca 10(6). One of the main requirements for the substrate to be SERS-active is the proper roughness of the surface. In this work different SERS-active Au and Ag substrates suitable for spectral mapping were prepared using procedures which consisted of electrochemical deposition of metal layer and further roughening with oxidation-reduction cycles (ORC) treatment. The nanostructures of the metal surfaces were tested using atomic force microscopy (AFM). Monolayers formed both by covalent and noncovalent linkages to the metal surface were detected and Raman spectral maps were then measured. Roughening procedure of the substrates was optimized and its (en) Povrchem-zesílený Ramanův rozptyl (SERS) je velmi účinná technika detekce Ramanova signálu látek na jejich nízké koncentrační úrovni. Metoda umožňuje pozorování strukturních detailů filmů o velmi malé tloušťce. Je možné dosáhnout zesílení Ramanova signálu i o více než 6 řádů pro specie lokalizované v bezprostřední blízkosti povrchu vhodně připraveného SERS-aktivního substrátu. Jedním z hlavních požadavků kladených na substrát, aby byl SERS-aktivní, je patřičné zdrsnění povrchu. V této práci byly připraveny různé Au a Ag SERS-aktivní substráty vhodné pro spektrální mapování za použití postupů, které spočívají v elektrochemické deposici kovové vrstvy a následném zdrsňování oxidačně-redukčními cykly. Nanostruktury na povrchu kovu byly zkoumány mikroskopií atomárních sil (AFM). Monovrstvy vytvořené jak kovalentními, tak i nekovalentními vazbami látek k povrchu kovu byly spektrálně detegovány a následně byly měřeny Ramanovy spektrální mapy. Postupy zdrsňování substrátů byly optimalizovány a byl diskutován (cs)
Title	Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure Příprava velkoplošných SERS-aktivních substrátů pro Ramanovo spektrální mapování a testování jejich povrchových nanostruktur (cs) Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure (en)
skos:prefLabel	Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure Příprava velkoplošných SERS-aktivních substrátů pro Ramanovo spektrální mapování a testování jejich povrchových nanostruktur (cs) Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure (en)
skos:notation	RIV/60461373:22340/08:00020220!RIV09-AV0-22340___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(KAN208240651)
http://linked.open...iv/cisloPeriodika	3-4
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Hasal, Pavel Matějka, Pavel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola chemicko-technologická v Praze / Fakulta chemicko-inženýrská
http://linked.open...dnocenehoVysledku	389040
http://linked.open...ai/riv/idVysledku	RIV/60461373:22340/08:00020220
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SERS-active substrate; AFM; nanostructure; spectral map; assembled monolayer (en)
http://linked.open.../riv/klicoveSlovo	assembled monolayer spectral map AFM nanostructure SERS-active substrate
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[9887B5AE77A7]
http://linked.open...i/riv/nazevZdroje	Surface Interface Anal.
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Study of interactions of biological macromolecules and nanolayers with a view to research of polymer microfluidic biosensors and therapeutic nanoparticles
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	40
http://linked.open...iv/tvurceVysledku	Hasal, Pavel Matějka, Pavel Čejková, Jitka Prokopec, Vadym
http://linked.open...ain/vavai/riv/wos	000255486200105
issn	0142-2421
number of pages	7 (xsd:int)
http://localhost/t...ganizacniJednotka	22340
is http://linked.open...avai/riv/vysledek of	Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure Preparation of SERS-active substrates with large surface area for Raman spectral mapping and testing of their surface nanostructure

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