کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10141369 | 1646070 | 2019 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
RGO modified mediator free paper for electrochemical biosensing platform
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Here, a novel, simple, cost-effective, environment-friendly, non-invasive and mediator free, reduced graphene oxide (RGO) modified paper-based biosensing platform was reported. A conductive platform was generated over the ivory paper sheet via in-situ reduction of graphene oxide. The conductivity of the RGO paper was found as 0.86â¯S cmâ1. This substrate was used for deposition of cysteine capped gold nanoparticles (Cys-AuNPs) using electrophoretic deposition technique at 60â¯V for biosensing application. Scanning electron microscopic images show the deposition of Cys-AuNPs in the spherical bunch on the RGO paper. The Cys-AuNPs deposition on RGO paper was confirmed by energy-dispersive x-ray spectroscopy and X-ray photoelectron spectroscopy and used for immobilization of monoclonal antibodies. This paper-based immunosensor based on chronoamperometry technique has the ability of direct electron transfer without using any mediator. This platform can replace commercially available electrodes [Indium Tin Oxide (ITO) and fluorine-doped tin oxide (FTO)] coated glass substrate, glassy carbon and gold] for electronic and electrochemical applications including point-of-care (POC) devices.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 463, 1 January 2019, Pages 587-595
Journal: Applied Surface Science - Volume 463, 1 January 2019, Pages 587-595
نویسندگان
Kashyap Dave, Namrata Pachauri, Amit Dinda, Pratima R Solanki,