title: NiCu Alloy Nanoparticle-Loaded Carbon Nanofibers for Phenolic Biosensor Applications.
abstract: NiCu alloy nanoparticle-loaded carbon nanofibers (NiCuCNFs) were fabricated by a combination of electrospinning and carbonization methods. A series of characterizations, including SEM, TEM and XRD, were employed to study the NiCuCNFs. The as-prepared NiCuCNFs were then mixed with laccase (Lac) and Nafion to form a novel biosensor. NiCuCNFs successfully achieved the direct electron transfer of Lac. Cyclic voltammetry and linear sweep voltammetry were used to study the electrochemical properties of the biosensor. The finally prepared biosensor showed favorable electrocatalytic effects toward hydroquinone. The detection limit was 90 nM (S/N = 3), the sensitivity was 1.5 µA µM(-1), the detection linear range was 4 × 10(-7)-2.37 × 10(-6) M. In addition, this biosensor exhibited satisfactory repeatability, reproducibility, anti-interference properties and stability. Besides, the sensor achieved the detection of hydroquinone in lake water.
authors.affiliation: Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China. ldw19900323@163.com.|Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA. ldw19900323@163.com.
authors.forename: Dawei
authors.initials: D
authors.lastname: Li
authors.affiliation: Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China. vl1403979894@sina.com.
authors.forename: Pengfei
authors.initials: P
authors.lastname: Lv
authors.affiliation: Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA. jzhu14@ncsu.edu.
authors.forename: Jiadeng
authors.initials: J
authors.lastname: Zhu
authors.affiliation: Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA. ylu14@ncsu.edu.
authors.forename: Yao
authors.initials: Y
authors.lastname: Lu
authors.affiliation: Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA. cchen20@ncsu.edu.
authors.forename: Chen
authors.initials: C
authors.lastname: Chen
authors.affiliation: Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695-8301, USA. xiangwu_zhang@ncsu.edu.
authors.forename: Xiangwu
authors.initials: X
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China. qfwei@jiangnan.edu.cn.
authors.forename: Qufu
authors.initials: Q
authors.lastname: Wei
mesh_terms: D015374:Biosensing Techniques / Q000379:methods*; D002244:Carbon / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D060106:Lakes / Q000737:chemistry; D053768:Metal Nanoparticles; D057139:Nanofibers / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*
chemical_list: D010636:Phenols; C062136:nickel copper alloy; D002244:Carbon; D003300:Copper; D009532:Nickel
keywords: NiCu alloy nanoparticles; carbon nanofibers; electrospinning; laccase; phenolic biosensor