کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6481408 | 1398100 | 2017 | 9 صفحه PDF | دانلود رایگان |
- The Ag-Au core-shell BNPs are synthesized and characterized
- Ag-Au core-shell BNPs modified (Ag-Au/GCE) has been examined for L-methionine oxidation/sensing by using electrochemical method.
- The Ag-Au/GCE exhibited good performance for the detection of L-methionine
The Ag-Au core-shell bimetal nanoparticles (BNPs) was prepared using chemical reduction method. The prepared Ag-Au core-shell BNPs were characterized by UV-Visible (UV-Vis) spectroscopy, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS) pattern. These results showed the Ag-Au BNPs exhibited core-shell shape. The Ag-Au core-shell BNPs was examined towards electrocatalytic oxidation of l-methionine (l-Met) by cyclic voltammetry (CV), linear sweep voltammetry (LSV) and chronoamperometry. According to the results, l-Met is determined with detection limit of 30 μM. Interference studies in biological buffer was also studied.
96
Journal: Materials Science and Engineering: C - Volume 70, Part 1, 1 January 2017, Pages 656-664