通过循环德克斯特林纳米海绵对胺电荷转移探针进行主机-客机介导的调制,用于水相化物检测
Sourav Mondal1, Suvendu Paul2, Nilanjan Dey1
1Department of Chemistry, Birla Institute of Technology and Science Pilani, Pilani. Hyderabad. Telangana 50078, India.
Langmuir : the ACS journal of surfaces and colloids
|September 25, 2025
概括
我们开发了以胺为基础的光探针,用于检测化物离子. 这些探测器显示增强的光当复杂的环极素 (CDs),特别是环极素纳米海绵 (NS),使灵敏的检测.
科学领域:
- 超分子化学 超分子化学
- 分析化学 分析化学
- 材料科学 材料科学 材料科学
背景情况:
- 胺衍生物是功能材料的多功能构建块.
- 环极 (CD) 和它们的纳米海绵 (NS) 是分子封装的有效宿主.
- 开发有选择性和敏感的探针,以检测水性介质中的有毒离子仍然是一个挑战.
研究的目的:
- 设计和合成胺功能化的电荷转移探头.
- 研究这些探针与β-cyclodextrin (β-CD) 和其纳米海绵 (NS) 衍生物的宿主-客人相互作用.
- 评估这些超分子组件在检测有毒化物离子 (-CN) 的潜力.
主要方法:
- 合成了两个具有不同合长度的胺功能化的电荷转移探头.
- 谱光分析 (光谱学,异性变异) 用于研究宿主-宿客复杂化.
- 约伯的情节分析和约束常数的确定.
- 计算和对接研究以阐明绑定相互作用.
- 在β-CD的存在下对化物离子的探针反应的评估.
主要成果:
- 一个带有延长结合的探针显示了聚合诱导的水中火,但在β-CD复合时光增强.
- 与β-CD的复杂化导致~2.3倍的光增强和1:1的纳入复杂 (Kb = 6866 M-1).
- β-CD NS进一步增强了光 (约8.9倍),表现优于原生β-CD.
- 较长的合探头在β-CD复合体中选择性地检测出化离子 (~4.1倍),具有增强的结合亲和力.
- 计算研究支持了关于结合相互作用的实验发现.
结论:
- 皮里米丁功能化的探头可以与β-CD及其NS形成包含综合体.
- 该β-CD/NS系统提高了光传感的探针性能.
- 开发的系统为有毒化离子的选择性水相传感提供了一个有希望的策略.
- 超分子组件为开发先进的化学传感器提供了一个可行的平台.
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