title: A Novel Electrophoretic Deposited Coordination Supramolecular Network Film for Detecting Phosphate and Biophosphate.
abstract: 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 H2PO4-anions and adenosine triphosphate (ATP) in aqueous solution. The limits of detection of H2PO4-and ATP can achieve 0.68 and 1.9 μm 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-, SO4-, CO32-, NO3-, 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.
authors.affiliation: School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P.R. China.
authors.forename: Tianshu
authors.initials: T
authors.lastname: Chu
authors.affiliation: School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P.R. China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.affiliation: School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P.R. China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Materials Science & Engineering, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, P.R. China.
authors.forename: Yangyi
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Chemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia.
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng
keywords: lanthanides; luminescence; sensors; supramolecular chemistry; thin films