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Cell growth rate of a) E. coli DH5α, c) P. aeruginosa PAO1 and e) B. subtilis 168 on the untreated, the gentamicin-coated PDMS and the CA-coated surfaces as a function of culturing time. Bacteria death rate b) E. coli DH5α, d) P. aeruginosa PAO1 and f) B. subtilis 168 on the untreated, the gentamicin-coated and the CA-coated PDMS surfaces as a function of culturing time. The CA-coated PDMS surfaces show a better antibiotic ability than the gentamicin-coated PDMS surfaces.
