Preparation and Characterization of Chitosan/Zinc Oxide Nanoparticles for Imparting Antimicrobial and UV Protection to Cotton Fabric

Table 1

The antibacterial activity and UPF rating of bleached cotton fabric treated by chitosan/ZnO nanoparticles.

Concentration of chitosan/ZnO nanoparticles (%)	Inhibition zone (mm)		UPF rating
	S. aureus	E. coli
0.0^a	—	—	1.5
0.5	5	7	3.5
1	9	10	4.8
2	11	12	6.0
4	11	13	8.3

^aRepresents the untreated bleached cotton fabric.
Condition used: cotton fabric treated by chitosan/ZnO nanoparticles (0.75%) at pickup 100%, dried at 100°C for 10 min, and then cured at 170°C for 5 min.