期刊
BIOSENSORS & BIOELECTRONICS
卷 140, 期 -, 页码 32-39出版社
ELSEVIER ADVANCED TECHNOLOGY
DOI: 10.1016/j.bios.2019.111330
关键词
Mo2C nanoparticles; Chemical reduction; Folic acid; Molecular imprinting polymer; Pyrrole
类别
资金
- National Research Foundation of Korea - Ministry of Education [2015M3A7B7045194, 2017R1C1B5076952, 2012R1A6A1029029]
- MOTIE [10052928]
- KSRC (Korea Semiconductor Research Consortium)
- Korea Institute of Energy Technology Evaluation and Planning
- Ministry of Trade, Industry and Energy of the Republic of Korea [20172010106080]
- Kwangwoon University
- Korea Evaluation Institute of Industrial Technology (KEIT) [10052928, 20172010106080] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Herein, we propose a facile chemical reduction method to synthesize the molybdenum carbide (Mo2C) nanoparticles and its application for the electrochemical detection of folic acid (FA) through imprinting technique. Raman scattering, photoelectron spectroscopy and electron microscopy techniques were employed to study the properties of Mo2C nanoparticles. FA imprinting was carried out in the presence of pyrrole monomer over Mo2C modified glassy carbon electrode (GCE). The proposed sensor showed the detection behavior for wide range of FA concentrations from 0.01 mu M to 120 mu M with an excellent LOD value of 4 nM and good selectivity toward FA as compared to other co-existing species in real samples. The fabricated MIP-Mo2C/GCE sensors were able to be replicated with similar to 1.9% RSD, and their reproduced sensor offered good repeatability (RSD; 1.6%) and stability.
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