Počet záznamů: 1  

New fluorescent-labelled nanoparticles: synthesis, characterization and interactions with cysteine and homocysteine to evaluate their stability in aqueous solution

  1. 1.
    SYSNO ASEP0536189
    Druh ASEPJ - Článek v odborném periodiku
    Zařazení RIVJ - Článek v odborném periodiku
    Poddruh JČlánek ve WOS
    NázevNew 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. 1157-1172
    Poč.str.16 s.
    Jazyk dok.eng - angličtina
    Země vyd.SA - Saudská Arábie
    Klíč. slovasilver nanoparticles ; gold nanoparticles ; amino-acids ; enantiorecognition ; enhancement ; copper(ii) ; adsorption ; histidine ; proteins ; cancer ; Fluorescent nanoparticles ; Dynamic light scattering ; Solution equilibria ; Spectroscopy ; Aggregation
    Vědní obor RIVCF - Fyzikální chemie a teoretická chemie
    Obor OECDPhysical chemistry
    Způsob publikováníOmezený přístup
    Institucionální podporaUFCH-W - RVO:61388955
    UT WOS000520600600014
    EID SCOPUS85077522769
    DOI10.1007/s13204-019-01241-9
    AnotaceFluorescent-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.
    PracovištěÚstav fyzikální chemie J.Heyrovského
    KontaktMichaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
    Rok sběru2021
    Elektronická adresahttp://hdl.handle.net/11104/0313999
Počet záznamů: 1  

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