Engineering of 2D Ti3C2 MXene Surface Charge and Its Influence on Biological Properties.

ABSTRACT: Current trends in the field of MXenes emphasize the importance of controlling their surface features for successful application in biotechnological areas. The ability to stabilize the surface properties of MXenes has been demonstrated here through surface charge engineering. It was thus determined how changing the surface charges of two-dimensional (2D) Ti3C2 MXene phase flakes using cationic polymeric poly-L-lysine (PLL) molecules affects the colloidal and biological properties of the resulting hybrid 2D nanomaterial. Electrostatic adsorption of PLL on the surface of delaminated 2D Ti3C2 flakes occurs efficiently, leads to changing an MXene's negative surface charge toward a positive value, which can also be effectively managed through pH changes. Analysis of bioactive properties revealed

SUBMITTER: Rozmyslowska-Wojciechowska A 

PROVIDER: S-EPMC7287753 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature