![Quantitative SERS Detection of Uric Acid via Formation of Precise Plasmonic Nanojunctions within Aggregates of Gold Nanoparticles and Cucurbit[n]uril](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F61682.jpg&w=3840&q=50)
Emerging sensing platforms based on Cucurbit[n]uril functionalized gold nanoparticles and electrodes.
Tao Ma1, Shuai Chang1, Jin He2
1The State Key Laboratory of Refractories and Metallurgy, Coal Conversion and New Carbon Materials Hubei Key Laboratory, School of Chemistry & Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, China. feng_liang@whu.edu.cn.
Chemical Communications (Cambridge, England)
|December 6, 2023
Summary
Cucurbit[n]urils (CB[n]s) coupled with gold nanoparticles and electrodes create advanced sensing platforms. These supramolecular junctions enable single-molecule analysis for better understanding of chemical interactions.
Area of Science:
- Supramolecular Chemistry
- Nanomaterials Science
- Analytical Chemistry
Background:
- Cucurbit[n]urils (CB[n]s) are synthetic macrocycles with unique host-guest properties, attracting significant research interest.
- Gold nanoparticles (Au NPs) and electrodes offer excellent physicochemical properties for sensing applications.
- Combining CB[n]s with Au NPs and electrodes forms novel sensing platforms.
Purpose of the Study:
- To review the preparation of CB[n]-functionalized Au NPs and electrodes.
- To outline the construction and application of supramolecular junctions for sensing.
- To discuss single-molecule analysis in CB[n]-based sensing platforms.
Main Methods:
- Recognition Tunneling (RT)
- Surface-Enhanced Raman Spectroscopy (SERS)
- Single-Molecule Force Spectroscopy (SMFS)
- Electrochemical Sensing (ECS)
Main Results:
- Progress in preparing CB[n]-functionalized Au NPs and electrodes is detailed.
- The construction and application of supramolecular junctions for sensing are discussed.
- Methods for single-molecule analysis using these platforms are highlighted.
Conclusions:
- Supramolecular junctions are crucial for single-molecule analysis in CB[n]-based sensing.
- These platforms offer insights into supramolecular interactions and chemical reactions.
- Future developments and challenges in CB[n]-mediated sensing are considered.
