▎ 摘　　要

NOVELTY - Hydro-solvo-thermal graphene oxide synthesis to obtain potassium-doped graphene oxide involves collecting and preparing Quercus ilex fruit for hydro-solvo-thermal graphene oxide synthesis, solvothermal grinding Quercus ilex fruit in solvent mixture to obtain crushed extract paste of brown solid residue, coefficient separating by centrifuging brown residue to obtain uniform brownish solution, nano filtering uniform brownish solution using nylon filter paper to obtain clear brownish solution, drying clear brownish solution in oven to evaporate solvent mixture to obtain dried brown potassium-doped graphene oxide solid, and performing bio-sensing and bio-imaging natural occurring source based on potassium-doped graphene oxide. USE - The method is used for hydro-solvo-thermal graphene oxide synthesizing to obtain potassium-doped graphene oxide for bio-sensing and bio-imaging (claimed). ADVANTAGE - The method provides natural source of potassium from fruit to support human beings, shows 7% potassium in fruit, relates simple and single step procedure for mass scale production of graphene for biomedical application, objects production of high-quality mass production of potassium doped graphene, and rectifies qualitative use of potassium-doped graphene for bio-imaging applications with eco-friendly approach.