Herbal nano-ointment containing encapsulated polysaccharide in repairing of superficial ulcers

Skin wounds are appraised as a rapidly growing threat to the economy and public health. Wound management is the main goal to promote rapid repair, with functional and esthetic outcomes. Among several wound healers, ointments are the most cost-effective and highly functional.  

Here, polysaccharide was isolated from Rosa canina and structural analysis was performed by NMR, LC-MS/MS, and FTIR. Then, the polysaccharide was encapsulated in SLN through the dialysis process. Structural analysis was committed to a survey on the physical and chemical properties of polysaccharide-SLN (PS-SLN) complex by Uv-Vis spectrophotometry, dynamic light scattering (DLS), and scanning electron microscopy (SEM) technologies. The ointment was prepared by adding PS-SLN to R. canina oil and beeswax.  

The prepared PS-SLN nanoparticles had monodispersity with a size of about 217 nanometers.  The nano-ointment showed high stability with a pH of about 6 and a high density near 3256 centipoises. The skin absorption of the compounds was determined by the Franz cells. The in vitro skin absorption indicated that during the first 12 hr 36% of our nano-ointment’s skin permeation and then continued up to 12 hr to 51%. The higher healing rate of nano-ointment than positive control with no allergic effects confirmed its efficiency in wound management.  

The results indicated that the nano-ointment could be applied for the healing of scars in pre-clinical and clinical trials. Owing to effectual scar healing, nano-ointment may be effective in the treatment of other wounds including burn, diabetic and chronic ones.