Synthesis of Polydopamine Functionalized Reduced Graphene Oxide-Palladium Nanocomposite for Laccase Based Biosensor
Joint Authors
Li, Da-Wei
Luo, Lei
Lv, Peng-Fei
Lu, Ke-Yu
Wei, An-Fang
Wang, Qingqing
Wei, Qufu
Source
Bioinorganic Chemistry and Applications
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-07-05
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Graphene based 2D nanomaterials have attracted increasing attention in biosensing application due to the outstanding physicochemical properties of graphene.
In this work, palladium nanoparticles (Pd) loaded reduced graphene oxide (rGO) hybrid (rGO-Pd) was synthesized through a facile method.
Laccase (Lac) was immobilized on rGO-Pd by utilizing the self-polymerization of dopamine, which generated polydopamine (PDA).
The PDA-Lac-rGO-Pd nanocomposites were further modified on electrode surface to construct novel biosensing platform.
The obtained electrochemical biosensor was applied in the detection of catechol, achieving excellent analytic results.
Under the optimum condition, this biosensor possessed a linear range from 0.1 µM to 263 µM for catechol detection, the sensitivity reached 18.4 µA mM−1, and the detection limit was as low as 0.03 µM.
In addition, the biosensor also showed good repeatability, reproducibility, anti-interference, and stability.
Moreover, the novel Lac based biosensor was successfully used in the trace detection of catechol existing in real water environment.
American Psychological Association (APA)
Li, Da-Wei& Luo, Lei& Lv, Peng-Fei& Wang, Qingqing& Lu, Ke-Yu& Wei, An-Fang…[et al.]. 2016. Synthesis of Polydopamine Functionalized Reduced Graphene Oxide-Palladium Nanocomposite for Laccase Based Biosensor. Bioinorganic Chemistry and Applications،Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1096796
Modern Language Association (MLA)
Li, Da-Wei…[et al.]. Synthesis of Polydopamine Functionalized Reduced Graphene Oxide-Palladium Nanocomposite for Laccase Based Biosensor. Bioinorganic Chemistry and Applications No. 2016 (2016), pp.1-10.
https://search.emarefa.net/detail/BIM-1096796
American Medical Association (AMA)
Li, Da-Wei& Luo, Lei& Lv, Peng-Fei& Wang, Qingqing& Lu, Ke-Yu& Wei, An-Fang…[et al.]. Synthesis of Polydopamine Functionalized Reduced Graphene Oxide-Palladium Nanocomposite for Laccase Based Biosensor. Bioinorganic Chemistry and Applications. 2016. Vol. 2016, no. 2016, pp.1-10.
https://search.emarefa.net/detail/BIM-1096796
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1096796