Hydrogen-bonding 2D coordination polymer for enzyme-free electrochemical glucose sensing

Abstract

Regular detection of blood glucose levels is a critical indicator for effective diabetes management. Owing to the intrinsic highly sensitive nature of enzymes, the performance of enzymatic glucose sensors is...

Proton-Conductive and Electrochemical-Sensitive Sensing Behavior of a New Mn(II) Chain Coordination Polymer

“…Currently, CPs are being used in the electrochemical fields, including fuel cells, supercapacitors, − and batteries, , due to their electrochemical activity. Especially, some redox-active pristine CPs exhibited excellent electrocatalytic activity − and attracted new attentions in nonenzymatic electrochemical sensing for some analytes. ,, For example, two novel CPs with anthracene derivatives, 1D {[Zn­(L)­(DMF) 2 ]} n and 3D {[Cd­(L)­(DMF)]·DMF} n [H 2 L = 4,4′-(9,10-anthracenediyl)­dicinnamic acid], show electrochemical sensing toward H 2 O 2 (linear range: 0.2–1.4 mM) . The introduction of melamine (Mel) into CPs has been proved to be an efficient approach to realize nonenzymatic glucose sensing because Mel-based CPs can accumulate glucose on the CP-modified electrode through hydrogen bonding.…”

“…Especially, some redox-active pristine CPs exhibited excellent electrocatalytic activity 46−51 and attracted new attentions in nonenzymatic electrochemical sensing for some analytes. 18,19,52 52 The novel MOF-525 was fabricated for the efficient determination of NO 2 − (linear range: 20−800 μM, LOD: 2.1 μM). 54 Meanwhile, the study of CPs in electrochemical sensing is still at an initial stage.…”

“…A novel 2D Zn­(II)-CP based on biphenyl-4,4′-dicarboxylate (BPDC 2– ) and melamine (Mel), [Zn 2 (BPDC)­Mel 0.5 ]·0.6­(DMF), was constructed. It shows interesting nonenzymatic sensing to glucose (linear range: 5.6–5.56 mM, LOD: 0.56 μM) . The novel MOF-525 was fabricated for the efficient determination of NO 2 – (linear range: 20–800 μM, LOD: 2.1 μM) .…”

Preparation, characterization, and electrochemical sensing performance of a novel pristine Cd-MOF and its composite with carbon nanotubes

“…The research progress in the field of redox active MOFs shows that they may act as the ideal platform for the development of efficient electrochemical devices such as supercapacitors, [19][20][21][22][23][24] ion storage systems, 25,26 and electrochemical sensors. [27][28][29][30][31][32][33][34][35] Among them, low dimensional 2D MOFs have attracted more and more attention due to their exposed functional groups and open interfaces. 36,37 Their functional groups and large specific surface areas can provide more functional sites for proton migration and the adsorption of suitable analytes, which can synergistically improve the efficiency of proton transfer and catalysis.…”