Preparation of ultrasensitive SERS tapes based on single-layer 1T′-TMD composites for rapid food safety monitoring
Hong Kong is highly dependent on imported food, making effective safety monitoring crucial. Current detection methods are often time-consuming, expensive and instrument-dependent. Surface-enhanced Raman scattering (SERS) offers rapid, sensitive and non-destructive detection of food contaminants. This project develops novel SERS tapes utilizing single-layer 1T′ transition metal dichalcogenide (TMD) composites, including metal@1T′-TMD core-shell heterostructures, enabling ultrasensitive detection of bacteria and pesticide residues in food. Compared with existing commercial methods, this technology provides ultrahigh sensitivity, low cost, and high reusability, holding strong potential for food safety monitoring.
Dr Li Zijian* (Postdoc, Department of Chemistry, City University of Hong Kong)
Mr Wang Chao (PhD, Department of Chemistry, City University of Hong Kong)
Miss Long Xinyue (PhD, Department of Chemistry, City University of Hong Kong)
Mr Sun Shaoyang (PhD, Department of Chemistry, City University of Hong Kong)
Dr Zhai Wei (Postdoc, Department of Chemistry, City University of Hong Kong)
Miss Tang Jiabei (PhD, Department of Chemistry, City University of Hong Kong)
* Person-in-charge
(Info based on the team's application form)
- CityU HK Tech 300 Seed Fund (2025)