Engineered Smart Gating Nanochannels for High Performance in Formaldehyde Detection and Removal

Bioinspired nanochannels for smart mass transport control have shown great potential for various applications in nanofluids, biosensing, and separation. Here, a nanochannel‐based smart responsive platform exhibiting high formaldehyde (HCHO) sensitivity is designed and successfully fabricated by func...

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Bibliographic Details
Published in:Advanced functional materials 2019-04, Vol.29 (14), p.n/a
Main Authors: Wu, Kai, Kong, Xiang‐Yu, Xiao, Kai, Wei, Yan, Zhu, Congcong, Zhou, Ru, Si, Mengting, Wang, Jijiang, Zhang, Yuqi, Wen, Liping
Format: Article
Language:English
Subjects:
Biomimetics
Charge density
Cultivation
Electronic design automation
Ethylenediamine
Formaldehyde
HCHO detection
HCHO removal
ion transport
Materials science
Nanochannels
Nanofluids
Stem cells
Surface charge
Wettability
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Summary:Bioinspired nanochannels for smart mass transport control have shown great potential for various applications in nanofluids, biosensing, and separation. Here, a nanochannel‐based smart responsive platform exhibiting high formaldehyde (HCHO) sensitivity is designed and successfully fabricated by functionalizing the inner pore surface with ethylenediamine (EDA). By employing the nucleophilic addition reaction between HCHO and EDA immobilized on the nanochannels, the artificial nanochannels can switch from an open state to a closed state with the increase in HCHO. This is because the surface charge density and the wettability of the nanochannels change along with the HCHO immobilization. Meanwhile, the EDA‐functionalized platform can hold a large amount of HCHO due to the abundant nanochannels of the membrane, so it presents a significant ability to remove HCHO in complex matrices. Also, the cultivation of mesenchymal stem cells in media containing HCHO can achieve excellent vitality in the presence of the EDA‐functionalized nanochannels materials. This work paves an avenue for designing and developing bioinspired nanochannel based platform for harmful compounds detection and removal. By employing the nucleophilic addition reaction between formaldehyde (HCHO) and ethylenediamine immobilized on the nanochannels, a smart responsive platform exhibiting high HCHO sensitivity and a significant ability to remove HCHO in complex matrices is designed and successfully fabricated. This work paves an avenue for designing and developing a bioinspired nanochannel‐based platform for harmful compounds detection and removal.
ISSN:1616-301X
1616-3028
DOI:10.1002/adfm.201807953