Graphene and CdS nanocomposite: A facile interface for construction of DNA-based electrochemical biosensor and its application to the determination of phenformin

• Published in: Colloids and surfaces, B, Biointerfaces Vol. 110; pp. 8 - 14
• Main Authors: Zeng, Lijiao, Wang, Rui, Zhu, Lihua, Zhang, Jingdong
• Format: Journal Article
• Language: English
• Published: Netherlands Elsevier B.V 01.10.2013
• Subjects: adenine; Adenines; aqueous solutions; Biosensing Techniques; Biosensors; cadmium; Cadmium Compounds - chemical synthesis; Cadmium Compounds - chemistry; colloids; Deoxyribonucleic acid; Diffraction; DNA; DNA - chemistry; Electrochemical biosensor; Electrochemical Techniques; electrochemistry; Electrodes; electron transfer; Fourier transform infrared spectroscopy; Graphene; Graphene/CdS; Graphite - chemistry; guanine; Guanines; Molecular Structure; Nanocomposite; nanocomposites; Nanocomposites - chemistry; Nanostructure; oxidation; Phenformin; Phenformin - analysis; scanning electron microscopy; Sulfides - chemical synthesis; Sulfides - chemistry; temperature; ultraviolet-visible spectroscopy; X-ray diffraction; Graphene/CdS; Nanocomposite; Electrochemical biosensor; DNA; Phenformin

•Graphene/CdS nanocomposite was synthesized with a low temperature process.•GR-CdS possessed outstanding electrochemical performance for electron transfer.•Electrochemical response of DNA on electrode was significantly promoted by GR-CdS.•DNA/GR-CdS biosensor showed sensitive electrochemical respons...