“…First used by Bremer et al to visualize biofilms (Bremer et al, 1992), AFM has been mainly applied to gain valuable insights in biofilm structure and mechanisms underlying adhesion, as well as single-and multi-strain biofilm formation (Figure 12) (Boyd et al, 2014;Cabral et al, 2014;Lim et al, 2011;Ovchinnikova et al, 2013;Potthoff et al, 2015). It has also proven useful for quantitative biofilm analysis, especially to confirm findings obtained by quantitative (viable count, CV staining) or other imaging (light microscopy, SEM) techniques (Ansari et al, 2013;Chatterjee et al, 2014;Li et al, 2015;Salunke et al, 2014). Among the characteristics of the sample surface examined, height and roughness analyses from AFM images allow quantification of biofilm biomass in terms of thickness and EPS amount, respectively (Ansari et al, 2013;Chatterjee et al, 2014;Danin et al, 2015;Li et al, 2015;Mangalappalli-Illathu et al, 2008;Nandakumar et al, 2004;Qin et al, 2009;Sharma et al, 2010).…”