title: Ordered carbohydrate-derived porous carbons immobilized gold nanoparticles as a new electrode material for electrocatalytical oxidation and determination of nicotinamide adenine dinucleotide.
abstract: The ordered carbohydrate-derived porous carbons (OC-DPCs) were first functionalized with thiol groups (-SH) and then immobilized with gold nanoparticles (AuNPs). The Au-SH-OC-DPCs were characterized by CHN analysis, transmission electron microscopy (TEM), fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), and x-ray diffraction (XRD). The Au-SH-OC-DPCs were applied for the fabrication of a new electrochemical sensor. The electrocatalytic capabilities of the new sensor were tested by the oxidation of nicotinamide adenine dinucleotide (NADH) in a 0.1 M Robinson buffer solution (pH 7.0) using cyclic voltammetry (CV), linear sweep voltammetry (LSV), and differential pulse voltammetry (DPV). The Au-SH-OC-DPCs showed a good voltammetric performance in the electrochemical detection of NADH with a low detection limit (1.0 nM), high sensitivity (4.934 μA/μM), and wide linear concentration range (5.0 nM-10 µM).
authors.affiliation: Department of Chemistry, Shahid Beheshti University, G. C.; PO Box 19396-4716, Tehran, Iran.
authors.forename: Hadi
authors.initials: H
authors.lastname: Hosseini
authors.affiliation: Department of Chemistry, Shahid Beheshti University, G. C.; PO Box 19396-4716, Tehran, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Behbahani
authors.affiliation: Department of Chemistry, Shahid Beheshti University, G. C.; PO Box 19396-4716, Tehran, Iran.
authors.forename: Mojtaba
authors.initials: M
authors.lastname: Mahyari
authors.affiliation: Faculty of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran.
authors.forename: Hanif
authors.initials: H
authors.lastname: Kazerooni
authors.affiliation: Department of Chemistry, Shahid Beheshti University, G. C.; PO Box 19396-4716, Tehran, Iran. Electronic address: akbr_bagheri@yahoo.com.
authors.forename: Akbar
authors.initials: A
authors.lastname: Bagheri
authors.affiliation: Department of Chemistry, Shahid Beheshti University, G. C.; PO Box 19396-4716, Tehran, Iran.
authors.forename: Ahmad
authors.initials: A
authors.lastname: Shaabani
mesh_terms: D015374:Biosensing Techniques / Q000295:instrumentation; D002244:Carbon / Q000737:chemistry*; D055664:Electrochemical Techniques / Q000295:instrumentation*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D057230:Limit of Detection; D053768:Metal Nanoparticles / Q000737:chemistry*; D009243:NAD / Q000032:analysis*; D010084:Oxidation-Reduction; D016062:Porosity
chemical_list: D009243:NAD; D002244:Carbon; D006046:Gold
keywords: Electrochemical biosensor; Gold nanoparticles; Mesoporous carbon materials; Nicotinamide adenine dinucleotide; Ordered carbohydrate-derived porous carbons