Počet záznamů: 1
New fluorescent-labelled nanoparticles: synthesis, characterization and interactions with cysteine and homocysteine to evaluate their stability in aqueous solution
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SYSNO ASEP 0536189 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název New fluorescent-labelled nanoparticles: synthesis, characterization and interactions with cysteine and homocysteine to evaluate their stability in aqueous solution Tvůrce(i) Scollo, Federica (UFCH-W) ORCID, RID
Seggio, M. (IT)
Torrisi, R. L. (IT)
Bua, R. O. (IT)
Zimbone, M. (IT)
Contino, A. (IT)
Maccarrone, G. (IT)Zdroj.dok. Applied Nanoscience. - : Springer - ISSN 2190-5509
Roč. 10, č. 4 (2020), s. 1157-1172Poč.str. 16 s. Jazyk dok. eng - angličtina Země vyd. SA - Saudská Arábie Klíč. slova silver nanoparticles ; gold nanoparticles ; amino-acids ; enantiorecognition ; enhancement ; copper(ii) ; adsorption ; histidine ; proteins ; cancer ; Fluorescent nanoparticles ; Dynamic light scattering ; Solution equilibria ; Spectroscopy ; Aggregation Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry Způsob publikování Omezený přístup Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000520600600014 EID SCOPUS 85077522769 DOI 10.1007/s13204-019-01241-9 Anotace Fluorescent-labelled nanoparticles conjugate the SPR of nanomaterials as well as the fluorescence properties of the capping dye. In this work, we report a study on the synthesis of fluorescent l-tyrosine (l-Tyr) and fluorescein (Fluo)-capped silver nanoparticles (AgNPs) carried out by a fine-tuning of the analytical concentration of the reagents. The AgNPs have been characterized by TEM, UV-Vis, ATR-FTIR, and photoluminescence (PL) spectroscopy and DLS. The adsorption of cysteine and homocysteine on the surface of the nanoparticles has been studied to evaluate their overall evolution in solution and their possible interactions with more complex systems, such as proteins. Opposed to homocysteine, cysteine induces aggregation either of tyrosine- and fluorescein-capped nanoparticles, which are therefore promising systems for the discrimination of biothiols. Furthermore, tyrosine-capped AgNPs, in spite of the better coordinating characteristics of this amino acid with respect to fluorescein, show aggregation abilities with cysteine greater than the fluorescein-capped ones that are unexpectedly more stable and thus less prone to aggregation phenomena. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2021 Elektronická adresa http://hdl.handle.net/11104/0313999
Počet záznamů: 1