Estimation of bisulfate in edible plant foods, dog urine, and drugs: picomolar level detection and bio-imaging in living organisms.
Alanine
/ chemistry
Animals
Artemia
/ chemistry
Bacteria
/ chemistry
Coumarins
/ chemistry
Dogs
Fluorescent Dyes
/ chemistry
Food Analysis
Glycine
/ chemistry
Humans
Hydrogen-Ion Concentration
Limit of Detection
Optical Imaging
/ methods
Permeability
Plants, Edible
/ chemistry
Sensitivity and Specificity
Sulfates
/ analysis
Water
/ chemistry
Journal
The Analyst
ISSN: 1364-5528
Titre abrégé: Analyst
Pays: England
ID NLM: 0372652
Informations de publication
Date de publication:
23 Sep 2019
23 Sep 2019
Historique:
pubmed:
6
9
2019
medline:
23
1
2020
entrez:
6
9
2019
Statut:
ppublish
Résumé
In order to explore the properties of any species in solution, the actual, i.e. equilibrium concentration of the free species should be taken into account. Researchers have not paid attention to the deprotonation equilibrium between HSO4- and SO42- while probing bisulfate ion. In this study, we have addressed this concern and developed two zwitterions, CG (coumarin-integrated glycine) and CA (coumarin-integrated alanine), for the selective detection of HSO4- at a picomolar level (50 to 325 pM) with very high binding affinity (∼108 M-1) in pure water at physiological pH. The principle of HSO4- recognition was established via UV-vis and fluorescence techniques. DFT calculations suggested that the H-bonding interactions between the probes and HSO4- are the driving force for this unforeseen selectivity. The membrane penetration ability and nontoxicity of CG/CA enable them to function as staining agents in living brine shrimps and bacteria. The use of these probes for the estimation of HSO4- in various day-to-day edible foods and drugs along with urine samples is unprecedented. The significance and novelty of this study lies in the application and development of assays for estimating bisulfate in several real-world samples that are predominantly aqueous in nature, which are the first of their kind.
Substances chimiques
Coumarins
0
Fluorescent Dyes
0
Sulfates
0
Water
059QF0KO0R
coumarin
A4VZ22K1WT
Alanine
OF5P57N2ZX
Glycine
TE7660XO1C
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM