大学化学 >> 2022, Vol. 37 >> Issue (12): 2111060.doi: 10.3866/PKU.DXHX202111060

化学实验 上一篇    下一篇

碳化钛介导原位还原的无标签可视化银离子检测综合实验设计

董宁宁1,2, 许琳琪2, 熊峰2, 闫博宇2, 李昆1,2,3,*(), 郭栋才2,3   

  1. 1 化学生物传感与计量学国家重点实验室, 长沙 410082
    2 湖南大学化学化工学院, 长沙 410082
    3 化学国家级实验教学示范中心(湖南大学), 长沙 410082
  • 收稿日期:2021-11-22 录用日期:2021-12-16 发布日期:2022-02-10
  • 通讯作者: 李昆 E-mail:kunli@hnu.edu.cn
  • 作者简介:李昆, Email: kunli@hnu.edu.cn
  • 基金资助:
    国家自然科学基金(21807032);湖南大学中央高校本科教育教学改革专项(2021);湖南省普通高等学校教学改革研究项目(HNJG-2021-0343)

Design of a Comprehensive Experiment: Titanium Carbide MXenes Mediated In Situ Reduction for Label-Free and Visualized Sensing of Silver Ions

Ningning Dong1,2, Linqi Xu2, Feng Xiong2, Boyu Yan2, Kun Li1,2,3,*(), Dongcai Guo2,3   

  1. 1 State Key Laboratory of Chemo/Biosensing and Chemometrics, Changsha 410082, China
    2 College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
    3 National Demonstration Center for Experimental Chemistry Education (Hunan University), Changsha 410082, China
  • Received:2021-11-22 Accepted:2021-12-16 Published:2022-02-10
  • Contact: Kun Li E-mail:kunli@hnu.edu.cn

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摘要：

选取切合本科教学实际的科研前沿成果，将无机材料的制备和表征、光学分析方法的建立和应用融会在一起，为学生呈现了完整的课题研究流程。基于碳化钛介导的原位还原，构建了免标记、可视化的等离激元传感光学方法，实现了对样品中银离子的高灵敏、特异性检测。本实验有助于学生掌握纳米分析化学的研究范式，养成探索创新的科研思维习惯，并激发学习兴趣和科研报国热情。

关键词: 研究型综合实验, 碳化钛, 银离子, 无标签, 比色传感

Abstract:

We select advanced scientific research results that are suitable for undergraduate laboratory teaching. In order to present a complete process of scientific researches for students, the preparation and characterization of inorganic materials, as well as the establishment and application of optical analysis methods are integrated in this experiment. On the basis of titanium carbide mediated in situ reduction, a label-free, visualized plasmonic sensing method was constructed to achieve highly sensitive and selective detection of silver ions. The implementation of this experiment will not only help students grasp the research paradigm of nanoanalytical chemistry and develop a habit of innovative scientific thinking, but also stimulate students' interests in studying and enthusiasm to science for serving our country.

Key words: Research-oriented comprehensive experiment, Titanium carbide, Silver ions, Label-free, Colorimetric sensing