Underwater Superoleophobic-Oleophilic Chips for Femtomolar Aflatoxins Identification  

作　　者：Liwei Cao Lizhen Wu Cheng Li Yidan Tu Hao Wu Bin Shen Jianxin Meng Xin-Qi Hao Bing Yan Feng-yu Li Fan Xia Yu Huang 

机构地区：[1]College of Chemistry and Materials Science,Jinan University,Guangzhou,Guangdong 510632,China [2]State Key Laboratory of Biogeology and Environmental Geology,Engineering Research Center of Nano-Geomaterials of Ministry of Education,Faculty of Material Science and Chemistry,China University of Geosciences,Wuhan,Hubei 430074,China [3]School of Environmental Studies,China University of Geosciences,Wuhan,Hubei 430074,China [4]Zhejiang Institute,China University of Geosciences,Hangzhou,Zhejiang 311305,China [5]School of Materials Science and Engineering,Zhengzhou University,Zhengzhou,Henan 450001,China

出　　处：《Chinese Journal of Chemistry》2022年第12期1464-1470,共7页中国化学（英文版）

基　　金：the National Natural Science Foundation of China(Nos.22090050,22090052,22176180,21874121,51803194,41807201,21874056,52003103,21974128);the National Key R&D Program of China(Nos.2016YFC1100502,2018YFE0206900);the Characteristic Innovation Projects of Guangdong Province for University(No.2018GKTSCX004);the Key Projects in Basic and Applied Research of Jjiangmen(Grant No.[2019]256);Zhejiang Provincial Natural Science Foundation of China under Grant No.LY20B050002 andNo.LD21B050001.

摘　　要：Underwater superoleophobic-oleophilic chips were developed to achieve oil extracting from aqueous solution and oil-droplet con-densing to preset microwell.The double-hierarchical(extracting-condensing)enrichment strategy drastically improves the sensitivi-ty for organic contaminants or components,whose signal amplification approaches 459.7 times that of primary solution and 25.9 times that of single condensing enrichment strategy.Low to femtomolar limit of detection(2.6×10^(-15)mol/L)sensitivity and 6 vari-ous aflatoxins or mildewed foods identification demonstrate the significance and promotion for environment monitoring,water pu-rification,and so on.

关 键 词：AFLATOXINS FLUORESCENCE NANOSTRUCTURES SENSORS Underwater superoleophobic-oleophilic 

分 类 号：O42[理学—声学]