Fabrication of silicon quantum dots-methyl viologen nanohybrids: Turn-On-Off-On fluorescence nanoprobe for the detection of d-penicillamine
- Authors
- Rajendran, Kalimuthu; Nabeel, Mattath Mohamed; Pandian, Kannaiyan; Manikandan, Velu; Ganesan, Sivarasan; Lo, Huang-Mu; Rajendiran, Nagappan; Liu, Xinghui; Oluwafemi, Oluwatobi Samuel
- Issue Date
- Feb-2024
- Publisher
- ELSEVIER
- Keywords
- Silicon Quantum Dots; Methyl Viologen; D-Penicillamine; Turn -On -Off -On sensing; Nanohybrids
- Citation
- MICROCHEMICAL JOURNAL, v.197
- Journal Title
- MICROCHEMICAL JOURNAL
- Volume
- 197
- URI
- https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/26598
- DOI
- 10.1016/j.microc.2023.109803
- ISSN
- 0026-265X
1095-9149
- Abstract
- This study provides a straightforward, one-step hydrothermal approach for synthesizing water-soluble silicon quantum dots (SiQDs). The surface of the synthesized SiQDs is modified by the carboxylic acid functional group (A:SiQDs) after succinic anhydride treatment. The modified A:SiQDs, which emitted blue light fluorescence, showed high stability against photobleaching, thermal stability, and good water solubility. The A:SiQDs are conjugated with methyl viologen (MV2+) to develop a nanohybrid for specific D-Penicillamine (D-PA) detection with an LOD of 8 nM. The suggested sensor was effectively used to analyze D-PA in commercial pharmaceutical formulations using the conventional addition method, and it produced results with good accuracy and precision that were nearly equal to those measured.
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