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SEM images of P. fluorescens grown for 48 h to form biofilms on cellulose substrates after 1 h of washing with Formulation 1 (detergent-based (a,b)), Formulation 2 (enzyme-based (c,d)) and the combination of both (Formulation 1/2 (e,f)). Lower (a,c,e) and higher (b,d,f) magnifications are shown.
