文献类型： 外文期刊
作者： Yan, Wenyan 1 ; Huang, Qinle 1 ; Zhou, Lin 3 ; Lin, Xingyu 1 ;
作者机构： 1.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou 310021, Peoples R China
3.Zhejiang Univ, Inst Analyt Chem, Dept Chem, Hangzhou 310058, Peoples R China
关键词： Photoelectrochemical sensor; Nanochannel; Whole blood; Kiwifruit; Ethanol
期刊名称：BIOSENSORS & BIOELECTRONICS （ 影响因子：10.5； 五年影响因子：10.1 ）
ISSN： 0956-5663
年卷期： 2025 年 268 卷
页码：
收录情况： SCI
摘要： The development of advanced photoelectrochemical (PEC) technology for the direct detection of ethanol in complex biological sample, has become a hot topic. However, the photo-active nanomaterials, which could generate the photo-induced carriers under illumination, are susceptible to biofouling and interference in complex bio-matrices. In this work, the silica nanochannel-protected TiO2 nanomaterials was reported for the first time that enables the direct sensing of ethanol in real fruits and untreated whole blood. The modification of SNC enhanced the sensitivity of ethanol detection by promoting light absorption, electron-hole separation, and surface reaction rate of photo-active materials. Meanwhile, the biofouling macromolecules and interference signals can be effectively excluded due to the hydrophilic properties, size, and electrostatic exclusion of nanochannels. As a result, without any complex sample pretreatments, the proposed PEC sensor can be directly immersed in complex biological samples for ethanol detection, exhibiting a broad linear range (1.775 mu M-20 mM) and a low detection limit (1.2 mu M), as well as excellent reproducibility and stability. This work paves a new path for PEC sensors in real biomedical applications.
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