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Pregled bibliografske jedinice broj: 350403

Časopis

Autori: Miljanić, Snežana; Frkanec, Leo; Biljan, Tomislav; Meić, Zlatko; Žinić, Mladen
Naslov: Surface-Enhanced Raman Scattering on Colloid Gels Originated from Low Molecular Weight Gelator
Izvornik: Journal of Raman Spectroscopy (0377-0486) 39 (2008), 12; 1799-1804
Vrsta rada: članak
Ključne riječi: gel; gold colloid; low molecular weight organic gelator; silver colloid; surface-enhanced Raman scattering
Sažetak:
Surface-enhanced Raman scattering (SERS) on silver and gold colloid gels formed by a low molecular weight organic gelator, bis-(S-phenylalanine) oxalyl amide, was obtained. Strong Raman signals dominate in SERS spectra of hydrogels containing silver nanoparticles prepared by citrate and borohydride reduction methods, whereas broad bands of low intensity are detected in spectra of gold colloid gels. Resemblance between Raman spectrum of the crystalline substance and SERS spectra of the silver nanoparticle-hydrogel composites implies electromagnetic nature of the signal enhancement. A change in Raman intensity of the benzene and amide II bands caused by temperature and concentration increase indicates that the gelling molecules are strongly attached through the benzene moieties to the metal nanoparticles while participating in gel formation by intermolecular hydrogen bonding between the adjacent oxalyl amide groups. Transmission electron microscopy reveals a dense gel structure in the close vicinity of the enhancing metal particles for both silver colloid gels.
Projekt / tema: 119-1191342-2959, 098-0982904-2912
Izvorni jezik: ENG
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Kemija
URL Internet adrese: http://www3.interscience.wiley.com/journal/119876566/abstract
http://www3.interscience.wiley.com/user/accessdenied?ID=119876566&Act=2138&Code=4719&Page=/cgi-bin/fulltext/119876566/PDFSTART
Broj citata:
Altmetric:
DOI: 10.1002/jrs.2039
URL cjelovitog teksta:
Google Scholar: Surface-Enhanced Raman Scattering on Colloid Gels Originated from Low Molecular Weight Gelator
Upisao u CROSBI: miljanic@chempmf.hr (miljanic@chempmf.hr), 12. Svi. 2008. u 10:46 sati



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