Fig. 4From: Investigations of biofilms formed on silica in contact with aqueous formulations containing laccase and maltodextrinSurface composition obtained by XPS for bio-functionalised SiO2/Si substrates. Substrate in contact with the laccase mixture suspension for distinct contact times: a Attenuation of the Si2p substrate signal and nitrogen surface concentration [N] of the biopolymer adsorbates; b surface concentration ratio [N]/[C]Back to article page