| 학회 |
한국화학공학회 |
| 학술대회 |
2020년 가을 (10/14 ~ 10/16, e-컨퍼런스) |
| 권호 |
26권 1호, p.694 |
| 발표분야 |
재료 |
| 제목 |
A simple paper-based colorimetric analytical device and fluorescent sensor for glucose detection by using N-doped carbon dots and metal oxide |
| 초록 |
A new strategy for fluorescent and colorimetric sensing of hydrogen peroxide (H2O2) and glucose based on metal oxides – carbon dots composite is investigated. The sensing system relates to the catalytic oxidation reaction of glucose by glucose oxidase (GOx) to produce H2O2. Metal oxides with nitrogen-doped carbon dots (MFNCDs) with an intrinsic peroxidase-like activity are synthesized and used as a catalyst to oxidize of 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2), forming a typical blue color (oxTMB) with a characteristic absorption peak at 652 nm. The fluorescence of MFNCDs/TMB can be quenched with the presence of H2O2 at 405 nm through inner filter effect (IFE) and electron transfer within MFNCDs, oxTMB, and glucose system. Hence, the fluorescence and absorbance intensity can be applied for the quantitative determination of the concentration of H2O2 and glucose. Furthermore, the colorimetric readout on the paper device based on the changing color of solution can also use to integrate with a smartphone platform to conduct an on-site analysis of glucose without using the spectrometer. |
| 저자 |
오티옌린1, 허승현1, 이혜진1, Tran Van Phuc1, Jana Jayasmita1, LinLin Wang2, Ngoc-Diem Huynh1
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| 소속 |
1울산대, 2울산대하교 |
| 키워드 |
화공재료 |
| E-Mail |
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| 원문파일 |
초록 보기 |
