绿色发射纳米集群用于水样中的基的选择性和敏感检测
Vibhuti Atulbhai Sadhu1, Sanjay Jha2, Tae Jung Park3
1Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, 395 007, Surat, Gujarat, India.
Journal of fluorescence
|January 8, 2024
概括
研究人员合成了绿色光Cassia tora纳米集群 (C. tora-MoNCs) 用于基检测. 这种新的方法提供了水样中基的敏感和可靠的检测.
科学领域:
- 绿色化学是一种绿色化学.
- 纳米材料科学科学 纳米材料科学
- 分析化学是一种分析化学.
背景情况:
- 基基 (•OH) 是关键的反应性氧物种,涉及各种化学和生物过程.
- 开发用于OH检测的敏感和选择性方法对于环境监测和理解氧化应激至关重要.
- 现有的检测方法在灵敏度,选择性或环境影响方面可能存在局限性.
研究的目的:
- 通过绿色化学方法合成新型绿色光卡西亚托拉纳米集群 (C. tora-MoNCs).
- 为了研究合成的C. tora-MoNCs的光发光特性.
- 建立一个基于光的敏感传感平台,用于检测基基 (•OH).
主要方法:
- 使用Cassia tora作为模板,通过绿色化学路线合成C. tora-MoNCs.
- 描述C. tora-MoNCs,包括大小,表面功能和光发光特性 (发射/刺激波长,量子产量).
- 使用光灭机制检测OH基,支持光寿命和斯特恩-沃尔默分析.
主要成果:
- 成功合成绿色光C. tora-MoNCs,量子产量为7.72%,发射峰值在498nm (激发在380nm).
- 这些C. tora-MoNCs的平均尺寸为3.48 ± 0.80 nm,并且具有多样化的表面功能.
- 通过光火方式证明了基的成功识别,并证实了静态火机制. 检测极限被确定为9.13 nM.
结论:
- 开发的C. tora-MoNC是有效的光探针,用于敏感和选择性检测基.
- 绿色合成方法为纳米材料制备提供了一个环保的途径.
- 基于C. tora-MoNCs的传感平台显示出对现实应用的前景,例如监测水样中的OH激素,并具有良好的回收率.
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