Abstract: Provided are a pharmaceutical composition for preventing or treating a coronavirus infection or infectious disease, a composition for disinfection, and a health functional food or feed composition, all including nano-sized graphene oxide, and a method of using the same. Since the nano-sized graphene oxide or a complex thereof has anti-coronavirus activity, the graphene oxide may be used for prevention or treatment of a coronavirus infection, or disinfection of coronaviruses.

Abstract: Provided is a scalp or hair care composition including a nano-carbon structure. The nano-carbon structure can retain moisture of the scalp or hair even in a small amount, and relieve inflammation of the scalp to increase a hair and scalp care effect. In addition, the nano-carbon structure has the advantage of being applicable to various mixtures due to maximized dispersibility.

Abstract: The present invention pertains to a composition for preventing and treating cancer through mitochondrial metabolism regulation, wherein the composition contains a nanographene structure. It has been confirmed that a specific inhibitory activity on the NIX-dependent pathway among the mitophagy mechanisms in cancer cells inhibits mitochondrial degradation, and thus damaged mitochondria accumulate in the cancer cells, and apoptosis of the cancer cells is induced as a result. Therefore, the composition according to the present invention exhibits excellent anticancer effects that can be applied to various diseases related to the accumulation of abnormal cells, without causing resistance or toxicity, and can thus be effectively used as a cancer prevention or treatment agent or an anticancer treatment adjuvant.