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(A) Effect of glutaraldehyde on P. fluorescens biofilm inactivation. Error bars indicate standard deviation of three biological replicates. (B) Regrowth of a 72-h-old biofilm following exposure to glutaraldehyde. The 72-h-old biofilms were treated with various glutaraldehyde concentrations for 10 min at room temperature. Following treatment, biofilms were washed and regrown in fresh medium. The viability was measured after 24 h of regrowth. A570, absorbance at 570 nm.
