The Analytical Application of Quenching Phenomena of CdTe Quantum Dot Nanoparticles

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00131836" target="_blank" >RIV/00216224:14310/23:00131836 - isvavai.cz</a>

Result on the web

<a href="http://www.mdpi.com/2304-6740/11/9/373" target="_blank" >http://www.mdpi.com/2304-6740/11/9/373</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/inorganics11090373" target="_blank" >10.3390/inorganics11090373</a>

Result language

angličtina

Original language name

The Analytical Application of Quenching Phenomena of CdTe Quantum Dot Nanoparticles

Original language description

This paper is devoted to the synthesis and application of CdTe quantum dot (QD) nanoparticles covered with organic ligands containing a thiol group, mostly mercaptopropionic acid (MPA) and glutathione (GSH). The simple one-step synthetic procedure was optimized to prepare greater quantities of nanoparticles for analytical purposes. The prepared CdTe QD nanoparticles were characterized by various analytical techniques, and their interaction with some metal ions (Cu(II), Pb(II), and Hg(II)) was studied by using luminescence spectroscopy in both steady-state and time-resolved modes. The mathematical analysis of the quenching effect of Cu(II) ions on the luminescence of CdTe QD nanoparticles shows that the static contribution is mostly responsible for the overall effect, but experimental conditions, such as pH, ionic strength, or the concentration of nanoparticles in aqueous solution, could also be important. The presence of metal ions in the form of a metal complex species could play an important role, and this phenomenon could be used to tune the selectivity of the quenching process. These findings have been utilized for the development of an analytical procedure for the detection and quantitative analysis of Cu(II) and Pb(II) ions in environmental water samples. In practice, this procedure could be easily implemented in a microplate format to increase throughput.

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

10402 - Inorganic and nuclear chemistry

Project

<a href="/en/project/LTC20044" target="_blank" >LTC20044: Thermodynamic and kinetic investigations of metal complexes of polydentate ligands for biomedical, analytical and industrial applications</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2023

Confidentiality

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

Name of the periodical

Inorganics

ISSN

2304-6740

e-ISSN

2304-6740

Volume of the periodical

11

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

1-16

UT code for WoS article

001073579700001

EID of the result in the Scopus database

2-s2.0-85172866889