Sustainable Development of Chitosan/<i>Calotropis procera</i>-Based Hydrogels to Stimulate Formation of Granulation Tissue and Angiogenesis in Wound Healing Applications

oleh: Muhammad Zahid, Maria Lodhi, Zulfiqar Ahmad Rehan, Hamna Tayyab, Talha Javed, Rubab Shabbir, Ahmed Mukhtar, Ayman EL Sabagh, Robert Adamski, Mohamed I. Sakran, Dorota Siuta

Format: Article
Diterbitkan: MDPI AG 2021-05-01

Deskripsi

The formation of new scaffolds to enhance healing magnitude is necessarily required in biomedical applications. Granulation tissue formation is a crucial stage of wound healing in which granulation tissue grows on the surface of a wound by the formation of connective tissue and blood vessels. In the present study, porous hydrogels were synthesized using chitosan incorporating latex of the <i>Calotropis procera</i> plant by using a freeze–thaw cycle to stimulate the formation of granulation tissue and angiogenesis in wound healing applications. Structural analysis through Fourier transform infrared (FTIR) spectroscopy confirmed the interaction between chitosan and <i>Calotropis procera</i>. Latex extract containing hydrogel showed slightly higher absorption than the control during water absorption analysis. Thermogravimetric analysis showed high thermal stability of the 60:40 combination of chitosan (CS) and <i>Calotropis procera</i> as compared to all other treatments and controls. A fabricated scaffold application on a chick chorioallantoic membrane (CAM) showed that all hydrogels containing latex extract resulted in a significant formation of blood vessels and regeneration of cells. Overall, the formation of connective tissues and blood capillaries and healing magnitude decreased in ascending order of concentration of extract.