Related Experiment Video
Updated: Dec 10, 2025
Engineering Molecular Recognition with Bio-mimetic Polymers on Single Walled Carbon Nanotubes
Published on: January 10, 2017
Nanochannel sensor for sensitive and selective adamantanamine detection based on host-guest competition
Zhipeng Xie1, Mingfeng Yang2, Le Luo2
1School of Chemistry and Chemical Engineering, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou, 510006, China; The State Key Laboratory of Refractories and Metallurgy, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China.
A new nanochannel sensor detects adamantanamine (ADA) abuse in poultry. This host-guest competition method offers a rapid, sensitive, and reproducible way to identify illegal veterinary drugs, ensuring human health safety.
Area of Science:
- Analytical Chemistry
- Nanotechnology
- Food Safety
Background:
- Adamantanamine (ADA) abuse in poultry poses risks to human health.
- Current methods for ADA detection may lack speed, sensitivity, or cost-effectiveness.
Purpose of the Study:
- To develop a rapid, ultrasensitive, and cost-effective method for ADA detection.
- To establish a nanochannel sensor utilizing host-guest competition for quantitative ADA analysis.
Main Methods:
- Fabrication of a conical nanochannel sensor functionalized with p-toluidine.
- Assembly of the nanochannel with Cucurbit [7]uril (CB [7]) to create a host-guest system.
- Detection of ADA based on ionic current changes due to host-guest competition and hydrophobicity shifts.
Main Results:
- The nanochannel sensor achieved sensitive ADA detection in a linear range of 10-1000 nM.
- The limit of detection for ADA was determined to be 4.54 nM.
- The sensor demonstrated high sensitivity, excellent reproducibility, and reliability.
Conclusions:
- A novel nanochannel sensor platform for small-molecule drug detection was successfully developed.
- The host-guest competition strategy offers a simple and effective approach for detecting illegal veterinary drugs like ADA.
- This method provides a reliable tool for ensuring food safety and preventing human health issues.
