November 18, 2025 — Vibrio bacteria are major pathogens in the aquaculture industry, triggering vibriosis—a disease that can cause mortality rates of up to 90% within two days. This not only results in billions of dollars in economic losses globally but also poses a threat to food safety through contaminated aquatic products. Conventional detection methods for Vibrio require three to five days to yield results, and they often involve additional sterilization steps, making it nearly impossible to promptly control the spread of Vibrio infections.
To address this challenge, a research team led by Prof. Chen Lingxin from the Yantai Institute of Coastal Zone Research of the Chinese Academy of Sciences, has developed edged-satellite AuAg nanoparticles (ES-AuAgNPs). These nanoparticles (NPs) boast several characteristics, including alloyed Ag/Au composition, an edge-satellite structural design, and integrated antimicrobial components.
Collectively, these properties equip ES-AuAgNPs with enhanced peroxidase (POD)-like catalytic activity, surface-enhanced Raman scattering (SERS) performance, and antibacterial capabilities. This study was recently published in Advanced Science.