کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8020905 | 1517266 | 2014 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A novel hydrogen peroxide biosensor based on immobilized hemoglobin in 3D flower-like MoS2 microspheres structure
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A three-dimensional flower-like MoS2 microspheres were prepared and employed to immobilize hemoglobin (Hb) in order to fabricate a novel biosensor. The products were characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The electrochemical properties of the designed Nafion/Hb/MoS2/GC electrode were investigated by the cyclic voltammograms (CVs). The experimental results show that MoS2 was three-dimensional flower-like microspheres assembled by bent flakes with thickness of about several nanometers, and the diameter of these spheres was approximate 600 nm. Moreover, there were many pores with different diameters consisting of nanosheets on the surface of the MoS2 hierarchical structures. The resulting biosensor displayed a high sensitivity, good reproducibility and long-time stability, and the wide linear range and detection limit was 20-180 μmol Lâ1 and 6.7 μmol Lâ1 for the detection of H2O2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 122, 1 May 2014, Pages 182-185
Journal: Materials Letters - Volume 122, 1 May 2014, Pages 182-185
نویسندگان
Hui Liu, Xing Su, Congyue Duan, Xiaonan Dong, Zhenfeng Zhu,