2. Academic Validation
  3. Influence of Cedar Essential Oil on Physical and Biological Properties of Hemostatic, Antibacterial, and Antioxidant Polyvinyl Alcohol/Cedar Oil/Kaolin Composite Hydrogels

Influence of Cedar Essential Oil on Physical and Biological Properties of Hemostatic, Antibacterial, and Antioxidant Polyvinyl Alcohol/Cedar Oil/Kaolin Composite Hydrogels

  • Pharmaceutics. 2022 Nov 29;14(12):2649. doi: 10.3390/pharmaceutics14122649.
Tamer M Tamer 1,  Maysa M Sabet 2,  Zahrah A H Alhalili 3,  Ahmed M Ismail 4,  Mohamed S Mohy-Eldin 1,  Mohamed A Hassan 5 6
Affiliations

Affiliations

  • 1 Polymer Materials Research Department, Advanced Technologies and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.
  • 2 Central Laboratory, Faculty of Agriculture, Ain Sham University, Cairo 11241, Egypt.
  • 3 Department of Chemistry, Faculty of Sciences and Arts in Sajir, Shaqra University, Dawadmi 11912, Saudi Arabia.
  • 4 Basic Science Department-Arab Academy for Science, Technology and Maritime Transport, Aswan Branch, Aswan 81511, Egypt.
  • 5 Protein Research Department, Genetic Engineering and Biotechnology Research Institute (GEBRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria 21934, Egypt.
  • 6 University Medical Center Göttingen, Georg-August-University, 37073 Göttingen, Germany.
PMID: 36559143 DOI: 10.3390/pharmaceutics14122649
Abstract

Polyvinyl alcohol (PVA) is a safe and biodegradable polymer. Given the unique physical and chemical properties of PVA, we physically cross-linked PVA with kaolin (K) and cedar essential oil (Ced) using the freeze-thawing approach to fabricate PVA/Ced/K Sponge hydrogels as hemostatic, Antibacterial, and antioxidant wound healing Materials. The physicochemical characteristics of PVA/Ced/K hydrogels, including water swelling profiles and gel fractions, were surveyed. Additionally, the functional groups of hydrogels were explored by Fourier transform infrared spectroscopy (FTIR), while their microstructures were studied using scanning electron microscopy (SEM). Furthermore, the thermal features of the hydrogels were probed by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). Evidently, alterations in cedar concentrations resulted in significant variations in size, water uptake profiles, and hydrolytic degradation of the hydrogels. The incorporation of cedar into the PVA/K endowed the hydrogels with significantly improved Antibacterial competency against Bacillus cereus (B. cereus) and Escherichia coli (E. coli). Moreover, PVA/Ced/K exhibited high scavenging capacities toward ABTS•+ and DPPH free radicals. Beyond that, PVA/Ced/K hydrogels demonstrated hemocompatibility and fast blood clotting performance in addition to biocompatibility toward fibroblasts. These findings accentuate the prospective implementation of PVA/Ced/K composite hydrogel as a wound dressing.

Keywords

PVA; cedar essential oil; fast clotting dressing; hydrogel; kaolin; wound dressing.

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