Maturing conditions of bimetallic nanocomposites as a new factor influencing Au-Ag synergism and impact of Cu (II) and/or Fe (III) on luminescence

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15640%2F25%3A73627278" target="_blank" >RIV/61989592:15640/25:73627278 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/25:73627278

Result on the web

<a href="https://royalsocietypublishing.org/doi/epdf/10.1098/rsos.241385" target="_blank" >https://royalsocietypublishing.org/doi/epdf/10.1098/rsos.241385</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1098/rsos.241385" target="_blank" >10.1098/rsos.241385</a>

Result language

angličtina

Original language name

Maturing conditions of bimetallic nanocomposites as a new factor influencing Au-Ag synergism and impact of Cu (II) and/or Fe (III) on luminescence

Original language description

Gold–silver synergism has been well documented in many scientific works dealing with luminescent nanostructures that are exploitable in biomedical and environmental application. Frequently, the ratio of Au : Ag in synthetic mixtures was varied to influence the extent of Au–Ag synergism of the resulting luminescent gold–silver nanoclusters (GSNCs). However, in our approach, a new step, maturing under differing conditions using the same Au : Ag ratio (5 : 1), has been investigated systematically for the very first time. As referent systems, monometallic gold nanoclusters (AuNCs) and protein treated by the conditions of synthesis and maturing were prepared and investigated. The selected types of maturing conditions led to distinct changes in fluorescence characteristics and, consequently, Au–Ag synergism extent (evaluated as the ratio of fluorescence quantum yields of GSNCs versus AuNCs). The best synergism was obtained for GSNCs matured at 37°C for 2.5 h. The stability of luminescent signal of these GSNCs was tested in the presence of an excess (to 20 mM) of Cu(II) and/or Fe(III) ions (crucial cofactors in living systems). The same metallic ion concentration caused different extents of GSNC luminescence quenching, for which a plausible reasoning is suggested.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

21001 - Nano-materials (production and properties)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Royal Society Open Science

ISSN

2054-5703

e-ISSN

—

Volume of the periodical

12

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

20

Pages from-to

"241385-1"-"241385-20"

UT code for WoS article

001402059700003

EID of the result in the Scopus database

2-s2.0-85216192803