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Pregled bibliografske jedinice broj: 254424

Zbornik radova

Autori: Miljanić, Snežana; Frkanec, Leo; Meić, Zlatko; Žinić, Mladen
Naslov: Surface-Enhanced Raman Scattering Study of the Silver Nanoparticle-Hydrogel Composite
Izvornik: Abstract Book. 1st European Chemistry Congress / Horvai, Gyorgy ; Bombicz, Petra ; Androsits, Beata (ur.). - Budapest :
Skup: 1st European Chemistry Congress
Mjesto i datum: Budimpešta, Mađarska, 27-31.08.2006.
Ključne riječi: hidrogel; koloid srebra; površinski aktivirano Ramanovo raspršenje
Sažetak:
To obtain detailed information on the molecular self-assembly process of small organic molecules in various solvents numerous spectroscopic methods have been applied [1]. Due to limitations in use of these techniques caused by low gelator concentration and water as a gelling medium an innovative approach employing surface-enhanced Raman scattering (SERS) has been demonstrated. Bis-(S)-phenylalanine oxalyl amide acts as an efficient low molecular weight organic gelator of water having ability to form a thermoreversible and stable gel with a silver colloidal solution too. While a FT Raman spectrum of the gelling substance in hydrogel was not obtained, intense bands in the SER spectrum indicated the gelator molecules attached to the silver colloidal particles within the gel structure. Based on concentration and temperature dependent SER spectra adsorption mechanism of the gelling aminoacid oxalyl amide onto particle surface as well as dominant intermolecular interactions involved in nanocomposite hydrogel formation will be discussed. [1] Estroff L. A., Hamilton A. D.: Chem. Rev. 104, 1201-1217, 2004.
Vrsta sudjelovanja: Poster
Vrsta prezentacije u zborniku: Sažetak
Vrsta recenzije: Nema recenziju
Projekt / tema: 0119641
Izvorni jezik: ENG
Kategorija: Znanstveni
Znanstvena područja:
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