| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 742449 | Sensors and Actuators B: Chemical | 2012 | 8 Pages |
Abstract
New polydopamine (PDA)-laccase (Lac)-Fe3O4 magnetic polymeric bionanocomposites (MPBNCs) were prepared through one-pot Lac-catalyzed oxidation of dopamine in an aqueous suspension containing Lac, magnetic Fe3O4 nanoparticles and dopamine. A PDA-Lac-Fe3O4/Au electrode was prepared by facile and efficient magnetic separation/immobilization of the MPBNCs on a magnetic Au electrode for biosensing of hydroquinone (HQ), giving a sensitivity of 374 μA mmol−1 L cm−2, a limit of detection of 30 nmol L−1, as well as good selectivity and stability. The biosensing electrode was also used for HQ analysis in real sample matrices with satisfactory results.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Yunyong Li, Cong Qin, Chao Chen, Yingchun Fu, Ming Ma, Qingji Xie,