Low-cost and Highly Sensitive PFAS Detection Using Surface-enhanced Stimulated Raman Spectroscopy and Big Data Mining

This project, a collaboration between University of South Wales, Bangor University, and Airbus Defence and Space, addresses a major environmental and health issue while advancing both academic and industrial fields.

PFAS chemicals, used in products like non-stick cookware and firefighting foams, are known for accumulating in the environment and human body, which can lead to health risks such as cancer and liver damage. Detecting and managing PFAS in aircraft materials is crucial for protecting long-term environmental health and reducing harmful chemicals in the atmosphere.

Dr Li's innovative approach uses Surface-Enhanced Stimulated Raman Spectroscopy (SESRS) to create a high-resolution, portable tool that replaces costly, bulky optical spectrum analysers (OSAs), making it perfect for industrial use.

The project uses a new graphene oxide membrane and nanoparticles to enhance detection signals. Cost-effective lasers and a lock-in amplifier improve sensitivity, allowing quick detection of low PFAS levels. The project also includes AI for data analysis, in collaboration with Bangor University, focusing on aerospace applications.