Department of Clinical Laboratory;
The Affiliated Drum Tower Hospital of Nanjing University Medical School;
Nanjing 210008;
China;
Department of Geriatrics;
The Second Affiliated Hospital;
Key Laboratory for Aging&Disease;
Nanjing Medical University;
Nanjing 210011;
China;
College of Life Science;
Yangtze University;
Jingzhou 434025;
China;
Department of Technical Services;
Jiangsu Provincial Center for Disease Prevention and Control;
Nanjing 210009;
China;
Spermine; Silver; nanoparticles; Staphylococcus; aureus; Synagistic; effect; Antimicrobial;