کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
742646 1462088 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A label-free electrochemiluminescence immunosensor based on silver nanoparticle hybridized mesoporous carbon for the detection of Aflatoxin B1
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
A label-free electrochemiluminescence immunosensor based on silver nanoparticle hybridized mesoporous carbon for the detection of Aflatoxin B1
چکیده انگلیسی

A novel electrochemiluminescence (ECL) immunosensor was fabricated for the detection of Aflatoxin B1 (AFB1) by luminol functionalized with silver nanoparticles which were loaded on mesoporous carbon (luminol-AgNPs@MC) as antibody carriers and sensing platform. The immunosensor was prepared by modifying luminol-AgNPs@MC which conjugated AFB1 antibody (anti-AFB1) on glassy carbon electrode. The use of single-step cycle pulse can limit the consecutive reaction between luminol and H2O2 and can be efficient to keep luminol ECL intensity. This proposed method is simple, fast, sensitive, specific, stable and reliable. The results show that the ECL immunosensor has high sensitivity for AFB1 with a linear range from 0.1 pg/mL to 50 ng/mL and a low detection limit of 50 fg/mL. This work reveals that the luminol-AgNPs@MC is excellent sensing platform for the fabrication of simple and sensitive immunosensors. Our study provided a promising technique for the quality inspection of agricultural products.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 202, 31 October 2014, Pages 53–59
نویسندگان
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