Staphylococcus aureus Newman, ATCC 43300 and RJ-2 (MRSA) were provided by Min Li (Shanghai Jiao Tong University). Mingqiang Qiao (Nankai University) provided the Pseudomonas aeruginosa PAO1. Enterococcus faecalis ATCC 29212, Acinetobacter baumannii ATCC 1195, Klebsiella pneumoniae ATCC 700603, Escherichia coli ATCC 25922, and S. aureus ATCC 29213 were provided by Juncai Luo (Tiandiren Biotech). Staphylococcus epidermidis ATCC 12228 was provided by Di Qu (Fudan University). Clinical strains concluding SA 76 (MRSA) and PA47 were collected in the Third Xiangya Hospital, Central South University (She et al., 2020b (link)). All the Gram-positive strains were cultured in tryptic soy broth (TSB) or brain–heart infusion broth (BHI) (Solarbio, Beijing, China). Gram-negative strains were cultured in Luria–Bertani broth (LB) (Solarbio) medium. CC, tobramycin, ciprofloxacin, clindamycin, vancomycin, teicoplanin, and oxacillin were purchased from the MedChem Express, while gentamicin and amikacin were bought from Aladdin (Shanghai, China) and were dissolved in DMSO or deionized water.
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