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Polyhedral MnSe microparticles with specific Hg2+-suppressed oxidase-like activity: Toward a green and low-cost turn-off method for Hg2+ detection by Panwang Hu; Bangxiang Liu; Changkun Xia; Hengjia Zhu; Mengzhu Wang; Xiangheng Niu is a Engineering article available to read on EtoBox.
What is Polyhedral MnSe microparticles with specific Hg2+-suppressed oxidase-like activity: Toward a green and low-cost turn-off method for Hg2+ detection about?
With the attractive advantage of catalytic signal amplification, noble metal-based peroxidase-mimicking nanomaterials have been intensively used to establish optical methods for hypertoxic Hg2+ detection. However, in these methods the requirement of high-concentration H2O2 can lead to secondary pollution, and the noble metals used result in these assays’ high cost. Therefore, exploring new categories of enzyme mimics to develop environmentally friendly and low-cost approaches for Hg2+ sensing is highly desired. Herein we proposed a novel noble metal-free material, MnSe microparticles, featuring specific Hg2+-suppressed oxidase-like catalytic activity, to fabricate a green, cheap, and high-performance turn-off approach for Hg2+ detection. The MnSe microparticles with a polyhedral structure were obtained via a one-pot solvothermal process, showing excellent oxidase-like activity to catalyze the oxidation of colorless 3,3′,5,5′-tetramethylbenzidine (TMB) to its blue product. The introduction of Hg2+ can significantly mask their active sites via forming an inert layer of HgSe outside the MnSe microparticles, thus suppressing the TMB catalytic color reaction. Based on the turn-off princ
Who reads Polyhedral MnSe microparticles with specific Hg2+-suppressed oxidase-like activity: Toward a green and low-cost turn-off method for Hg2+ detection?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Panwang Hu; Bangxiang Liu; Changkun Xia; Hengjia Zhu; Mengzhu Wang; Xiangheng Niu
- Publisher
- Elsevier BV
- Published
- 2023
- Language
- EN
- Field
- Engineering (Physical Sciences)