Table 1.

Preparation procedure of BC (bacterial cellulose)-ZnO (nanoparticles) NPs composites.

BC Type	1 Step	2 Step	3 Step
film	soaking, 3 h in 1% trisamine solution, then 5 h in aq. solution of Zn(NO3)2∙4 H2O	BC film removing and transfer into shallow container with 0.1 M solution of NaOH for 10 min at 50 °C	rinse with distilled water until the composite pH became neutral, then drying
film	soaking, 3 h in 1% trisamine solution or DDS-Na or benzalkonium chloride for 30 min	BC film removing and transfer into shallow container, then spraying of ZnO NPs water-alcohol dispersion onto film surface	drying
powder	soaking, 3 h in 1% trisamine solution or DDS-Na or benzalkonium chloride for 30 min, sonification	transfer into vessel, then adding of ZnO NPs water-alcohol dispersion, then sonification	separation solid phase, rinse with distilled water until the composite pH became neutral, then drying