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Statements

Subject Item
n2:RIV%2F60461373%3A22310%2F12%3A43895885%21RIV14-GA0-22310___
rdf:type
skos:Concept n15:Vysledek
dcterms:description
In this chapter, modification of the surfaces of glass and polymers by plasma discharge and subsequent grafting with different thiols (mercaptoethanol, cysteamine, biphenyldithiol and ethanedithiol) is discussed. Thiols are expected to be fixed via one of their functional groups -OH, -SH or -NH2 to reactive sites activated by the plasma treatment. The remaining -SH group is then allowed to interact with gold nanoobjects (nanoparticles or nanorods). The main goal of this study is to examine the effect of the plasma treatment and the thiol grafting on the binding of gold nanoobjects on the substrate surface. Gold nanoparticles and nanorods were characterized by TEM microscopy and UV-Vis spectroscopy. Surface chemistry and structure of polymers and glass (pristine, plasma modified and grafted) were studied by FTIR, UV-Vis and XPS spectroscopy and by electrokinetic analyses. Surface morphology of samples was examined by AFM microscopy. Finally, the adhesion and proliferation of cells was studied by in vitro method and mechanical properties of Au deposited nanolayers were determined (e.g. adhesion) by nanoindentation measurement. Our measurements show the grafting of plasma activated polymer surface with dithiol and gold significantly increases adhesion of deposited Au nanolayer on polymer. Plasma treatment of the polymer followed with grafting gold nanoparticles significantly increases the attractiveness of the polymer surface to the adhesion and growth of cells. In this chapter, modification of the surfaces of glass and polymers by plasma discharge and subsequent grafting with different thiols (mercaptoethanol, cysteamine, biphenyldithiol and ethanedithiol) is discussed. Thiols are expected to be fixed via one of their functional groups -OH, -SH or -NH2 to reactive sites activated by the plasma treatment. The remaining -SH group is then allowed to interact with gold nanoobjects (nanoparticles or nanorods). The main goal of this study is to examine the effect of the plasma treatment and the thiol grafting on the binding of gold nanoobjects on the substrate surface. Gold nanoparticles and nanorods were characterized by TEM microscopy and UV-Vis spectroscopy. Surface chemistry and structure of polymers and glass (pristine, plasma modified and grafted) were studied by FTIR, UV-Vis and XPS spectroscopy and by electrokinetic analyses. Surface morphology of samples was examined by AFM microscopy. Finally, the adhesion and proliferation of cells was studied by in vitro method and mechanical properties of Au deposited nanolayers were determined (e.g. adhesion) by nanoindentation measurement. Our measurements show the grafting of plasma activated polymer surface with dithiol and gold significantly increases adhesion of deposited Au nanolayer on polymer. Plasma treatment of the polymer followed with grafting gold nanoparticles significantly increases the attractiveness of the polymer surface to the adhesion and growth of cells.
dcterms:title
Gold nano-objects grafting on substrates for tissue and electronics engineering Gold nano-objects grafting on substrates for tissue and electronics engineering
skos:prefLabel
Gold nano-objects grafting on substrates for tissue and electronics engineering Gold nano-objects grafting on substrates for tissue and electronics engineering
skos:notation
RIV/60461373:22310/12:43895885!RIV14-GA0-22310___
n15:predkladatel
n16:orjk%3A22310
n3:aktivita
n9:P
n3:aktivity
P(GBP108/12/G108)
n3:dodaniDat
n12:2014
n3:domaciTvurceVysledku
n7:7940904 n7:9735208 n7:8407029 n7:2029057
n3:druhVysledku
n13:C
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
138276
n3:idVysledku
RIV/60461373:22310/12:43895885
n3:jazykVysledku
n17:eng
n3:klicovaSlova
UV-Vis spectroscopy; FTIR; XPS; gold nanoobjects; grafting; Substrates
n3:klicoveSlovo
n11:gold%20nanoobjects n11:Substrates n11:grafting n11:XPS n11:FTIR n11:UV-Vis%20spectroscopy
n3:kontrolniKodProRIV
[ECE598B3DE50]
n3:mistoVydani
Trivandrem
n3:nazevEdiceCisloSvazku
Neuveden
n3:nazevZdroje
Recent Research Developments in Materials Science
n3:obor
n21:JJ
n3:pocetDomacichTvurcuVysledku
4
n3:pocetStranKnihy
293
n3:pocetTvurcuVysledku
5
n3:projekt
n19:GBP108%2F12%2FG108
n3:rokUplatneniVysledku
n12:2012
n3:tvurceVysledku
Kvítek, Ondřej Siegel, Jakub Kolská, Zdeňka Řezníčková, Alena Švorčík, Václav
s:numberOfPages
26
n18:hasPublisher
Research Signpost
n20:isbn
978-81-308-0466-8
n10:organizacniJednotka
22310