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dc.contributor.authorNguyen, Hai Son
dc.contributor.authorVu, Thi Kim Phan
dc.contributor.authorTran, Thi Mai
dc.contributor.authorNguyen, Manh Hung
dc.date.accessioned2024-11-22T19:11:21Z
dc.date.available2024-11-22T19:11:21Z
dc.date.issued2923-03-06
dc.identifier.urihttps://vinspace.edu.vn/handle/VIN/457
dc.description.abstractThe primary goal of glucose sensing at the point of care is to identify glucose concentrations within the diabetes range. However, lower glucose levels also pose a severe health risk. In this paper, we propose quick, simple, and reliable glucose sensors based on the absorption and photoluminescence spectra of chitosan-capped ZnS-doped Mn nanomaterials in the range of 0.125 to 0.636 mM glucose, corresponding to 2.3 mg/dL to 11.4 mg/dL. The detection limit was 0.125 mM (or 2.3 mg/dL), much lower than the hypoglycemia level of 70 mg/dL (or 3.9 mM). Chitosan-capped ZnS-doped Mn nanomaterials retain their optical properties while improving sensor stability. This study reports for the first time how the sensors’ efficacy was affected by chitosan content from 0.75 to 1.5 wt.%. The results showed that 1 wt.% chitosan-capped ZnS-doped Mn is the most sensitive, selective, and stable material. We also tested the biosensor with glucose in phosphate-buffered saline. In the same range of 0.125 to 0.636 mM, the chitosan-coated ZnS-doped Mn sensors exhibited better sensitivity than in a working water environment.en_US
dc.language.isoen_USen_US
dc.subjectchitosanen_US
dc.subjectglucoseen_US
dc.subjectsensoren_US
dc.subjectzns-doped mnen_US
dc.subjectoptical biosensoren_US
dc.subjectuv–visen_US
dc.subjectphotoluminescenceen_US
dc.titleOptical glucose sensors based on chitosan-capped ZnS-doped Mn nanomaterialsen_US
dc.typeArticleen_US


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  • Tran Thi Mai, PhD [8]
    Assistant Professor - College of Engineering and Computer Science

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