Jiangsu Collaborative Innovation Center of Biomedical Functional Materials;
Jiangsu Key Laboratory of Bio-functional Materials;
School of Chemistry and Materials Science;
Nanjing Normal University;
Nanjing;
210023;
PR China;
Jiangsu Engineering Research Center of Interfacial Chemistry;
Nanjing University;
Nanjing;
210093;
PR China;
Block polymers; Polymeric coating; Metallic substrates; Polycations; Antibacterial property;