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Recently, the Huang Qing research group of the Institute of Technology, Biology and Agricultural Engineering, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, and the Wang Qi research group of the Institute of Plasma Physics cooperated to treat graphene oxide with low-temperature plasma, and found that the sterilization ability of treated graphene oxide was significantly improved
.
In this study, low-temperature plasma was used to treat graphene oxide and its sterilization effect was studied, and it was found that graphene oxide treated with hydrogen plasma could cause inactivation of nearly 90% of bacteria at a concentration of 0.
02mg/mL, which was much higher than the sterilization ability
of untreated graphene oxide.
Through the study of the mechanism, plasma treatment can not only effectively reduce graphene and reduce its size, but also lead to an increase in surface defects of graphene oxide, forming multiple irregular columnar or needle-like protrusions, which in turn leads to the leakage of cellular inclusions and bacterial death
.
The study shows that low-temperature plasma can be used as an effective physical treatment method to modify graphene-like materials and improve their antibacterial and sterilization ability
.
