文献类型： 外文期刊

作者： Niu Feng; Xuewen Peng; Zhipan Wang; Xiaoping Yu; Xuping Shentu; and Yiping Chen

期刊名称： Analytical Chemistry

ISSN： 0003-2700

年卷期： 2023 年

页码：

收录情况： SCIE（2023版） ; ; EI（2023版）

摘要： Pursuing convenient operations and precise testing have become an urgent requirement in clinical diagnosis, treatment, and prognosis. Label-free detection is desirable for obviating the labeling process while maintaining high sensitivity and efficiency. Here, we used the dual properties of highly selective antibody−antigen recognition and potential signaling of biomolecules to construct a label-free electroosmotic flow-driven microchannel (LF-EMB) biosensor based on an antibody−antigen biorecognition-induced charge quenching theory proposed herein. The LF-EMB consists of a one-step immune-reaction, onebutton portable device, and supporting microfluidic chip, providing a highpowered tool for rapid on-site testing. The LF-EMB quantified interleukin-6 and kanamycin levels down to 1 pg/mL and 5 pg/mL, respectively, with the whole analysis completed within 35 min. The outstanding sensitivity and detection speed of the constructed LF-EMB provide a convenient option for the quantitative detection of inflammatory markers and antibiotics.

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