Carbon nanodots and method for synthesizing the same, wherein the method at least comprises the following steps: providing a ginger juice, heating the ginger juice with a predetermined temperature for a predetermined time period to make the ginger juice carbonized and transformed to carbon nanomaterials containing carbides centrifuging the carbon nanomaterials containing the carbides to obtain a supernatant and after filtrating the supernatant, dialyzing the supernatant to obtain a solution of carbon nanodots. In addition, each one of the carbon nanodots synthesized by the above method residues in some curcumin molecules, exhibiting a growth inhibition effect to liver cancer cell. Accordingly, use of producing pharmaceutical agents for treating liver tumor can also be derived from the same.一種碳奈米點及其合成方法,該方法至少包括如下步驟:提供一薑汁,以一預定溫度對該薑汁加熱一預定時間,以使該薑汁碳化並形成含有碳化物的碳奈米材料;對該含有碳化物的碳奈米材料進行離心以取得上清液;以及過濾該上清液後,對該上清液進行透析處理,從而獲得一碳奈米點懸浮溶液。本發明還藉上述方法提供一種碳奈米點,其表面具有薑黃素分子,藉此抑制肝腫瘤的增殖,並發展出碳奈米點作為製造治療肝腫瘤的醫藥的用途。
