Patent ID: 11878910
Assignee: SINON NANO SCIENCES, INC.
Field: Materials, metallurgy (Chemistry)
Classification: CPC C | IPC C

Claim 7:
8. A composition comprising a water-soluble carbon nanoparticle including an encapsulated molecule therein, the carbon nanoparticle having a plurality of carboxylic groups and hydroxyl groups such that the carboxylic groups comprise at least about 20% of the total weight of the carbon nanoparticle, the carbon nanoparticle having a first open form having a size of about 40 nm to about 200 nm and a second closed form having a diameter of about 40 nm to about 120 nm, wherein the open form can be converted to the closed form at a pH of about 6.8 or lower and the closed form can be converted to the open form at a pH of about 7.2 or higher.