Electrochemical synthesis, characterization of Ir-Zn containing coordination polymer, and application in oxygen and glucose sensing.

摘要: A simple and sensitive biosensor array based on phosphorescence detection that is able to detect oxygen glucose in human serum, respectively, has been developed. We demonstrate an electrochemical method as a fast, effective, tunable, versatile means of growing sensing material. This material, crystalline iridium(III)–Zn(II) coordination polymers, namely Ir–Zne, was grown stainless steel mesh then doped sol–gel matrix. The emission Ir–Zne ascribed metal-to-ligand charge transfer transition (MLCT). noteworthy oxygen-sensing properties were also evaluated. optimal conditions with deduced KSV value 3.55 5 V 30 °C for 1 hour. Moreover, the short response time (23 s) recovery (21 toward have measured. reversibility experiment carried out eleven cycles. resulting >70% intensity each cycle demonstrated high degree reproducibility during process. limit could be 0.050% gaseous oxygen. substrate subsequently built up under oxidase encapsulated hydrogel immobilized egg membrane by layer-by-layer method. Once solution injected into this array, content depleted simultaneously concomitant increase polymers. linear dynamic range determination 0.1–6.0 mM, correlation coefficient (R2) 0.9940 (y = 0.75 [glucose] + 0.539), less than 120 s. minimum detectable concentration calculated 0.05 mM from three times signal noise. photophysical material effects buffer concentration, pH, interference, matrix effect, temperature, stability studied detail. successfully applied serum.