Table 2.

Antimicrobial hydrogels loaded with ZnO nanoparticles.

Nanocomposite Hydrogel	Loading of ZnO Nanoparticles	Antimicrobial Activity against	Applications	Ref.
Gum acacia/poly sodium acrylate/ZnO	In situ preparation by hydrothermal method	E. coli	Antimicrobial	[64]
Alginate/gum acacia/ZnO	Addition of ZnO-NPs during the synthesis of hydrogel	P. aeruginosa, B. cereus	Wound dressing	[19]
Poly(ethylene glycol) methyl ether methacrylate modified ZnO (ZnO-PEGMA)/4-azidobenzoic agarose (AG-N3) IPN hydrogel	Addition of ZnO-NPs to PEGMA	S. aureus, E. coli	Wound dressing	[145]
Chitosan/ZnO flexible, microporous hydrogel	Incorporation of ZnO-NPs into hydrogel	S. aureus, E.coli	Wound dressing	[146]
Genipin-crosslinked chitosan (GC), poly(ethylene glycol) (PEG)/ZnO/Ag	Incorporation of ZnO and Ag nanoparticles into hydrogel matrix	E. coli, P. aeruginosa, S. aureus, B. subtilis	Wound dressing	[147]