Table 4. Importance of the nanoparticles loaded hydrogels in skin tissue regeneration.

Formulation	Author	Importance	Reference
Silver nanoparticle-embedded PVP hydrogel	Khampieng et al (2014)	• Anti-bacterial activity at the site of damaged skin tissue.	50
Sodium alginate/ polyvinyl alcohol hydrogel loaded with 5-hydroxymethyl furfural and silver nanoparticles.	Kong et al (2019)	• Antioxidant potential. • Moisture retaining property.	51
Nano silver incorporated PVP/ Carrageenan hydrogel.	Singh et al (2015)	• Hindered the fluid accumulation during exudation of wounds.	52