Receptor modified gold and silver nanoparticles: effect on interactions with oxoanions

Autor:	Lenka Veverková, Pavel Žvátora, Kamil Záruba, Vladimír Král
Rok vydání:	2012
Předmět:	Circular dichroism Chemistry Inorganic chemistry Supramolecular chemistry Ionic bonding Nanoparticle Biochemistry Porphyrin Combinatorial chemistry Silver nanoparticle Analytical Chemistry chemistry.chemical_compound Colloidal gold Electrochemistry Environmental Chemistry Spectroscopy Conjugate
Zdroj:	The Analyst. 138(1)
ISSN:	1364-5528
Popis:	Herein we present a supramolecular non-covalent approach for the modification of gold nanoparticles (GNPs) and silver nanoparticles (SNPs) with porphyrin derivatives. The immobilization of porphyrin derivatives was carried out by two different procedures of ionic interaction. The first one was direct immobilization of the conjugate on nanoparticles and the second one was immobilization of the conjugate on 3-mercaptopropanoic acid (MPA) premodified gold nanoparticles. Such modified nanoparticles were used for interactions with selected oxoanions. The interactions were studied by UV-Vis absorption spectroscopy and electronic circular dichroism. The results showed a dependence of interaction with oxoanions on the immobilization procedures of porphyrin derivatives on the nanoparticle surface.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc3157912adfc3f8091e103764e473a9 https://pubmed.ncbi.nlm.nih.gov/23133826 Zobrazit plný text záznamu