Related Experiment Video
Updated: Jan 3, 2026
Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs
Published on: November 17, 2023
High-sensitive molecularly imprinted sensor with multilayer nanocomposite for 2,6-dichlorophenol detection based on
Hongji Li1, Yan Wang2, Yue Li2
1Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, Changchun 130103, PR China; College of Environmental Science and Engineering, Jilin Normal University, Siping 136000, China; Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, PR China.
This study presents a novel sensor for detecting chlorophenols using molecularly imprinted polymers (MIPs) and surface-enhanced Raman scattering (SERS). The developed sensor demonstrates high sensitivity and selectivity for trace-level environmental monitoring.
Area of Science:
- Analytical Chemistry
- Materials Science
- Environmental Science
Background:
- Chlorophenols are significant environmental pollutants requiring sensitive detection methods.
- Traditional Surface-Enhanced Raman Scattering (SERS) lacks selectivity for complex samples.
- Molecularly Imprinted Polymers (MIPs) offer high selectivity but can reduce SERS sensitivity.
Purpose of the Study:
- To develop a novel multilayer sensor combining MIPs and SERS for enhanced chlorophenol detection.
- To improve both sensitivity and selectivity in trace-level pollutant monitoring.
- To create an environmentally friendly and scalable detection system.
Main Methods:
- Fabrication of SiO2/reduced graphene oxide/gold (SGA) composites as SERS substrates.
- Integration of MIPs with functional monomers (methacrylic acid and acrylamide) onto SGA substrates.
- Surface modification with polydopamine (pDA) and atom transfer radical polymerization (ATRP) for optimized performance.
Main Results:
- The novel SGA-MIPs sensor demonstrated enhanced SERS sensitivity.
- Improved selectivity for chlorophenol detection compared to traditional SERS.
- The sensor exhibited good sensitivity and selectivity in environmentally friendly aqueous solutions.
Conclusions:
- The developed multilayer sensor effectively balances MIP selectivity and SERS sensitivity.
- This approach offers a promising, eco-friendly method for trace chlorophenol detection.
- The sensor design is suitable for scalable environmental monitoring applications.
