Detection of Hg2+ ions in aqueous medium using an indole-based fluorescent probe: Experimental and theoretical investigations
Result description
Mercury pollution is a widespread danger to human health and environment. Due to limitations associated with the existing Hg2+ chemosensors, development of new, efficient and selective chemosensors capable of sensing mercury ions in aqueous medium remains a demanding area of research. In this regard, an indole-based fluorescent probe has been synthesized and characterized by detailed spectroscopic analysis. The probe showed a high selectivity and sensitivity towards Het by giving significant fluorescence quenching over other tested cations in H2O/DMF (7:3, v/v) medium. The association constant (K-a) was 6.4 x 10(3) M-1 between sensor and Hg2+. The detection limit of sensor to Hg2+ was found to be 0.143 mu M (143 nM). The experimental results have been verified with Density Functional Theory.
Keywords
coumarinchemosensorfluorescencequenchingmercuryDFT calculations
The result's identifiers
Result code in IS VaVaI
Result on the web
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Detection of Hg2+ ions in aqueous medium using an indole-based fluorescent probe: Experimental and theoretical investigations
Original language description
Mercury pollution is a widespread danger to human health and environment. Due to limitations associated with the existing Hg2+ chemosensors, development of new, efficient and selective chemosensors capable of sensing mercury ions in aqueous medium remains a demanding area of research. In this regard, an indole-based fluorescent probe has been synthesized and characterized by detailed spectroscopic analysis. The probe showed a high selectivity and sensitivity towards Het by giving significant fluorescence quenching over other tested cations in H2O/DMF (7:3, v/v) medium. The association constant (K-a) was 6.4 x 10(3) M-1 between sensor and Hg2+. The detection limit of sensor to Hg2+ was found to be 0.143 mu M (143 nM). The experimental results have been verified with Density Functional Theory.
Czech name
—
Czech description
—
Classification
Type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Molecular Liquids
ISSN
0167-7322
e-ISSN
—
Volume of the periodical
248
Issue of the periodical within the volume
Dec
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
668-677
UT code for WoS article
000418314400081
EID of the result in the Scopus database
2-s2.0-85032270481
Basic information
Result type
Jimp - Article in a specialist periodical, which is included in the Web of Science database
OECD FORD
Physical chemistry
Year of implementation
2017