Characteristics of Initial Attachment and Biofilm Formation of Pseudomonas aeruginosa on Microplastic Surfaces

The toxic effect of microplastics on living organisms is emerging as a serious environmental issue nowadays. biofilm formed their surface by microorganisms can further increase the toxicity, but mechanism formation not yet fully understood because complexities other factors. This study aimed to identify factors with an important influence microplastic surfaces. microtiter plate assay was used evaluate biofilms Pseudomonas aeruginosa PAO1, model microorganism, four types microplastics, including polyethylene, polystyrene, polypropylene, and polytetrafluoroethylene. density found be key factor in determining amount relative water has decisive behavior microplastics. Biofilm plastics densities similar that showed remarkable differences based characteristics, whereas higher significantly influenced particle movement experimental environment. Furthermore, inhibited adding quorum quenching enzyme, suggesting QS critical provides useful information