Magnetic Graphene Field-Effect Transistor Biosensor for Single-Strand DNA Detection

• Published in: Nanoscale research letters Vol. 14; no. 1; pp. 248 - 8
• Main Authors: Sun, Jinjin, Xie, Xiaohui, Xie, Ke, Xu, Shicai, Jiang, Shouzhen, Ren, Junfeng, Zhao, Yuefeng, Xu, Huaqiang, Wang, Jingjing, Yue, Weiwei
• Format: Journal Article
• Language: English
• Published: New York Springer US 24.07.2019; Springer Nature B.V; SpringerOpen
• Subjects: Aptamers; Biomolecules; Biosensor; Biosensors; Chemical vapor deposition; Chemistry and Materials Science; Complementary DNA; Deoxyribonucleic acid; DNA; Field effect transistors; Field-effect transistor; Glass substrates; Graphene; Impedance; Magnetic; Magnetic fields; Magnetic nanobeads; Materials Science; Molecular Medicine; Nano Express; Nanochemistry; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; Organic chemistry; Semiconductor devices; Signal to noise ratio; Single-stranded DNA; Transistors; Magnetic nanobeads; Magnetic; Graphene; Field-effect transistor; Biosensor; DNA

Herein, a magnetic graphene field-effect transistor biosensor was prepared through the transfer of a chemical vapor deposition graphene film onto a glass substrate to produce a sensing film and conductive channel. By fixing 1-pyrenebutanoic acid succinimidyl ester onto graphene film as an anchor, a...