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相关概念视频

Photoluminescence: Applications01:14

Photoluminescence: Applications

406
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
406

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基于高量子收益率的多元组件确定"开启-关闭"碳量子点传感器.

Xiang Li1, Jun Wu1, Xiashi Zhu1

  • 1College of Chemistry and Chemical Engineering, College of Guangling, Yangzhou University, Yangzhou 225002, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
|November 20, 2023
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概括

-硫-联合化碳量子点 (CQD) 提供了一个高度光的"开启-关闭"传感器. 这种传感器可以检测多种分析物,显示出药物检测应用的巨大潜力.

关键词:
阿尔吉尼因 (Arginine) 是一种素.亚斯科布酸是什么? 亚斯科布酸是一种碳量子点是一个量子点.铁 (III) 是一种铁.光感应器上的光感应器上的光.希斯蒂丁因 (Histidine) 是一种氨酸.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 分析化学 分析化学
  • 纳米技术 纳米技术

背景情况:

  • 碳量子点 (CQD) 是具有独特光学特性的新兴纳米材料.
  • 开发用于多种分析物的敏感和选择性传感器在各种领域至关重要,包括药物检测.
  • 基于光的传感提供了诸如高灵敏度和实时监控等优势.

研究的目的:

  • 为了合成新型的 ((N) - 硫 ((S) - ((Na ((I)) 联合化CQDs.
  • 构建一个光"开启-关闭-开启"传感器,用于检测多个分析物.
  • 为了研究传感机制并评估传感器的性能.

主要方法:

  • 一个步骤的N,S,Na (I) 联合化CQD的热水合成.
  • 一个光"开关"传感器的制造.
  • 通过Fe(III) 灭CQD的光,并通过亚斯科布酸 (Asc),氨酸 (Arg) 和氨酸 (His) 恢复.
  • 用光谱分析来研究光机制.

主要成果:

  • 合成的CQD显示出高光量子产量 (24.58%) 和优良的光学性能.
  • 传感器显示出快速响应,高灵敏度,稳定性,选择性和反干扰能力.
  • 实现了对多种分析物的同时确定,并获得了令人满意的恢复率.
  • 阐明了"开启-关闭"光机制.

结论:

  • 与N,S,Na (I) 联合合的CQD是传感器开发的有希望的光材料.
  • 开发的CQDs光传感器有效用于同时检测多个分析物.
  • 碳纳米功能化材料具有通过光传感检测药物检测的巨大潜力.