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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Qu, Peng Jiang, Xiangyu Liu, Jinhua Geng, Fenghua Xu, Maotian Wang, Yongxiang |
| Description | Country affiliation: China Author Affiliation: Jiang X ( College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.); Geng F ( Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.); Wang Y ( Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China. Electronic address: wangyx2006@pku.edu.cn.); Liu J ( Key Laboratory for Flexible Electronics, Institute of Advanced Materials (IAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China.); Qu P ( Henan Key Laboratory Cultivation Base of Nanobiological Analytical Chemistry, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, China.); Xu M ( College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China) |
| Abstract | Quantitative fluorescence turn-on and colorimetric detection of glutathione (GSH) with rapid speed, low cost have attained much attention. Herein, we developed a sensitive fluorescence turn-on and colorimetric sensor for GSH based on the inner-filter effect (IFE), which is the first time to select oxTMB and TMPyP as the IFE absorber and fluorophore pair, respectively. The absorption band of oxTMB matches well with the emission band of TMPyP in the IFE-based fluorescent assay. In the absence of GSH, the absorption peak of oxTMB at 652nm significantly overlaps with the emission of TMPyP, resulting in the efficient IFE and inhibition of the fluorescence of TMPyP. In the presence of GSH, the absorption intensity at 652nm decreases, generating the recovery of the fluorescence of TMPyP. Therefore, this approach is demonstrated to be a novel candidate for detection of GSH, with high sensitivity and selectivity. The linear dynamic range for the concentrations of GSH is between 0.1µM to 20µM along with a limit of detection (LOD) of about 30nM (calculated LOD as 3σ/slope). Finally, this novel sensor was successfully applied for GSH detection in fetal calf serum, and satisfactory recovery was achieved. |
| ISSN | 09565663 |
| Journal | Biosensors and Bioelectronics |
| Volume Number | 81 |
| e-ISSN | 18734235 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2016-07-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Biotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nanoscience and Nanotechnology Medicine Biophysics Biomedical Engineering Biotechnology Electrochemistry |
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