期刊
ANALYTICAL CHEMISTRY
卷 88, 期 24, 页码 12204-12209出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.6b03190
关键词
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资金
- Ministry of Education, Singapore [MOE2013-T2-1-056, ARC 35/13]
- National Research Foundation (NRF), Prime Minister's Office, Singapore under CREATE programme
- Singapore-MIT Alliance for Research and Technology (SMART) BioSystems and Micro mechanics (BioSyM) IRG
- Czech Science Foundation (GACR) [16-05167S]
There is huge interest in biosensors as a result of the demand for personalized medicine. In biomolecular detection, transition-metal dichalcogenides (TMDs) can be used as signal-enhancing elements. Herein, we utilize a solution-based electrochemical exfoliation technique with bipolar electrodes to manufacture MoSe2 nanolabels for biomolecular detection. Prepared MoSe2 nanoparticles (NPs) exhibit electrocatalytic activity toward the hydrogen evolution reaction (HER), and such a property allows it to act as a robust label for magneto immunoassays toward protein detection. The magneto-immunoassay also displayed good selectivity, a wide linear range of 2 to 500 ng mL(-1), high sensitivity (LOD = 1.23 ng mL(-1)) and reproducibility (RSD = 9.7%). These findings establish the viability and reproducibility of such an exfoliation technique for TMD nanolabels for the development of low costs and efficient biosensing systems.
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