Premium
A Novel Electrophoretic Deposited Coordination Supramolecular Network Film for Detecting Phosphate and Biophosphate
Author(s) -
Chu Tianshu,
Zhang Feng,
Wang Yi,
Yang Yangyi,
Ng Seik Weng
Publication year - 2017
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201700114
Subject(s) - electrophoretic deposition , lanthanide , supramolecular chemistry , europium , luminescence , indium tin oxide , aqueous solution , ligand (biochemistry) , chemistry , materials science , inorganic chemistry , thin film , ion , crystallography , crystal structure , nanotechnology , organic chemistry , optoelectronics , coating , receptor , biochemistry
A series of new lanthanide coordination supramolecular networks (CSNs) based on nalidixic acid (HNA) ligand were designed and synthesized. Their crystal structures were determined by single‐crystal XRD techniques. Thin films of these compounds were first successfully deposited on indium tin oxide (ITO) glass through one‐step electrophoretic deposition under mild conditions. The europium CSN film exhibits intense red emission and can act as a highly sensitive luminescent sensor for H 2 PO 4 − anions and adenosine triphosphate (ATP) in aqueous solution. The limits of detection of H 2 PO 4 − and ATP can achieve 0.68 and 1.9 μ m respectively. The sensing mechanism was further explored through fluorescence and UV techniques. The fabricated sensor also showed excellent selectivity towards these phosphates in the presence of other coexisting ions (F − , Cl − , Br − , I − , SO 4 − , CO 3 2− , NO 3 − , and AcO − ) without interference. Moreover, we demonstrated the feasibility of using this sensor to detect ATP in bovine serum samples, suggesting the potential value of application in real biosystems.