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首页> 外文期刊>Nano letters >Aquaporin-Inspired CPs/AAO Nanochannels for the EffectiveDetection of HCHO: Importance of a Hydrophilic/Hydrophobic JanusDevice for High-Performance Sensing
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Aquaporin-Inspired CPs/AAO Nanochannels for the EffectiveDetection of HCHO: Importance of a Hydrophilic/Hydrophobic JanusDevice for High-Performance Sensing

机译：Aquaporin-Inspired CPs/AAO Nanochannels for the EffectiveDetection of HCHO: Importance of a Hydrophilic/Hydrophobic JanusDevice for High-Performance Sensing

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摘要

Probe reactivity has long been considered to play a key role inartificial nanochannel sensors, but systematic studies of membrane wettability ondetection performance are currently lacking. Inspired by biological aquaporins, wedeveloped an effective strategy to regulate the hydrophilic/hydrophobic balance bythe controllable in situ assembly of coordination polymers (CPs) using BDC-NH2on anodic aluminum oxide (AAO) nanochannels to promote HCHO detection. Wefound that the hydrophobic/hydrophilic balance in CP/AAO heterosomes playssignificant roles in the effective detection of HCHO. The hydrophobic AAO barrierlayer is necessary to support the confinement effect, while the hydrophilic CPsurface is favorable for HCHO to access the channels and then condense with theresponsive amine to generate a new imine. The optimized CP/AAO Janus deviceshows excellent performance in the quantitative analysis of HCHO over a widerange from 100 pM to 1 mM by monitoring the rectified ionic current

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