Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6610082 | Electrochimica Acta | 2015 | 30 Pages |
Abstract
Three-dimensional nanocomposite of reduced oxide graphene (rGO) and Cu/Cu2O nanocrystal (3D Cu/Cu2O@rGO) was synthesized via a one-step low-temperature co-reduction method and further used as an electrochemical sensor for detecting ractopamine (RAC). In comparison with pristine Cu2O nanospheres and porous rGO, ractopamine antibody (RACanti) prefers to anchor onto the surface of 3D Cu/Cu2O@rGO nanocomposite because of its multi-functionality, which subsequently leads to more sensitive RAC detection. The developed electrochemical biosensor based on 3D Cu/Cu2O@rGO nanocomposite adsorbed with RACanti showed a low detection limit of 7.5 pg mLâ1 within the range of 0.1 ng mLâ1 to 10 ng mLâ1 for detecting RAC. Furthermore, interference from other lean meat powders, urine components, and metal ions, such as salbutamol, clenbuterol hydrochloride, uric acid, urea, K+, Na+, Mg2+, and Ca2+, associated with RAC analysis can be effectively inhibited. The strategy offers a new pathway for rapid RAC analysis and shows a promising prospect in food safety.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Minghua Wang, Mengmeng Kang, Chuanpan Guo, Shaoming Fang, Linghao He, Chunxiao Jia, Gaihong Zhang, Bing Bai, Wei Zong, Zhihong Zhang,