کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7229639 | 1470926 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A sensitive electrochemical nonenzymatic biosensor for the detection of H2O2 released from living cells based on ultrathin concave Ag nanosheets
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Facile synthesis of ultrathin two-dimensional metallic nanosheets with special physical and chemical properties is still challenging. In this work, ultrathin silver nanosheets were synthesized through the galvanic replacement reaction between silver nitrate and Cu microcages without using any surfactant at room temperature. The as-prepared Ag nanosheets (NSs) were concave and had a thickness of sub-10â¯nm. And the nanosheets exhibited excellent H2O2 detection property with a high sensitivity of about 320.3â¯uAâ¯mMâ1 cmâ2 and a low detection limit of 0.17â¯ÂµM in a wide linear range of 5-6000â¯Î¼M, and a fast response time (less than 2â¯s). Besides, the real-time detection of H2O2 induced from living HeLa and SH-SY5Y cells were also achieved, indicating the potential application of as-prepared Ag NSs in monitoring physiological and dynamic in-clinic pathological processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 106, 30 May 2018, Pages 29-36
Journal: Biosensors and Bioelectronics - Volume 106, 30 May 2018, Pages 29-36
نویسندگان
Bo Ma, Chuncai Kong, Xuanxuan Hu, Ke Liu, Qiang Huang, Jian Lv, Wenjing Lu, Xiaojing Zhang, Zhimao Yang, Sen Yang,