Detection of Sugars via Chirality Induced in Europium(III) Compounds

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F16%3A00463989" target="_blank" >RIV/61388963:_____/16:00463989 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11310/16:10330448 RIV/00216208:11320/16:10330448

Result on the web

<a href="http://dx.doi.org/10.1021/acs.analchem.6b02505" target="_blank" >http://dx.doi.org/10.1021/acs.analchem.6b02505</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.analchem.6b02505" target="_blank" >10.1021/acs.analchem.6b02505</a>

Result language

angličtina

Original language name

Detection of Sugars via Chirality Induced in Europium(III) Compounds

Original language description

Detection and resolution of simple monosaccharides are difficult tasks because their structure is quite similar. The present study shows that circularly polarized luminescence (CPL) induced in europium complexes provides very specific spectral patterns for fructose, mannose, glucose, and galactose. Differences were also observed between bare Eu3+ ion and its complexes, when interacting with these sugars. The CPL spectra were measured on a Raman optical activity (ROA) spectrometer, which ensured high fluorescence intensity owing to the strong 532 nm laser excitation. The induced fluorescence was recorded in the same spectrum as the vibrational Raman bands. On the basis of the ligand field theory, most fluorescence spectral peaks could be assigned to f-shell europium transitions. Additional information on the interaction of the lanthanide with the sugar component was provided by measurement of time-dependent fluorescence, as formation of different complexes led to variations in fluorescence decay times. In nuclear magnetic resonance (NMR), the paramagnetic metal ion interacting with the sugars caused specific changes in C-13 chemical shifts. The spectroscopic data and molecular dynamics modeling showed that the interaction between the monosaccharides and Eu ion is rather weak due to the competition of the OH sugar groups with water molecules. However, multiple binding modes are possible, which contributes to the complexity and specificity of the spectra. The induced chirality and fluorescence spectra thus appear to be convenient means for monosaccharide detection and identification.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

—

Project

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

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Analytical Chemistry

ISSN

0003-2700

e-ISSN

—

Volume of the periodical

88

Issue of the periodical within the volume

17

Country of publishing house

US - UNITED STATES

Number of pages

8

Pages from-to

8878-8885

UT code for WoS article

000382805900074

EID of the result in the Scopus database

2-s2.0-84986003626