They will function as biological vaccine passports: required to enter stores, gyms & to travel.
The quantum dots (S10C5H QDs encapsulated in poly(methyl methacrylate) microspheres) can be detected with adapted smartphones for use in real-world settings: https://t.co/XOl1igDscb
— Nicolas Hulscher, MPH (@NicHulscher) October 11, 2025
