کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7229914 | 1470931 | 2018 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
An ultrasensitive electrochemiluminescent immunosensor based on graphene oxide coupled graphite-like carbon nitride and multiwalled carbon nanotubes-gold for the detection of diclofenac
ترجمه فارسی عنوان
یک ایمونوسنسور الکتروکیملومینسانس فوق حساس مبتنی بر اکسید گرافین همراه با نیترید کربن گرافیت مانند و نانولوله های کربنی چند ضلعی برای تشخیص دیکلوفناک
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In this study, a novel competition-type electrochemiluminescent (ECL) immunosensor for detecting diclofenac (DCF) was fabricated with graphene oxide coupled graphite-like carbon nitride (GO-g-C3N4) as signal probe for the first time. The ECL intensity of carboxylated g-C3N4 was significantly enhanced after being combined with graphene oxide (GO) which exhibited excellent charge-transport property. The sensing platform was constructed by multiwalled carbon nanotubes and gold nanoparticles (MWCNTs-AuNPs), which not only provided an effective matrix for immobilizing a large amount of coating antigen but also facilitated the electronic transmission rate to enhance the ECL intensity. Based on the synergistic effect of GO-g-C3N4 and MWCNTs-AuNPs composite, the proposed sensor showed high sensitivity, good stability, and wide linearity for the detection of DCF in the range of 0.005-1000 ng mLâ1 with a detection limit of 1.7 pg mLâ1. Furthermore, the developed immunoassay has been applied to real samples with satisfactory results. Therefore, this work provided a promising method for the detection of DCF and other small molecular compounds in the future.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biosensors and Bioelectronics - Volume 101, 15 March 2018, Pages 260-267
Journal: Biosensors and Bioelectronics - Volume 101, 15 March 2018, Pages 260-267
نویسندگان
Liuyi Hu, Jing Zheng, Kang Zhao, Anping Deng, Jianguo Li,