| Popis: |
Nanocrystals are a feasible system to improve the aqueous solubility of poorly soluble compounds. Orodispersible films (ODFs) offer a rapid release of the drug in the mouth and are preferred for patients with dysphagia or paediatrics. The objective of the current study was to develop resveratrol (RES) nanocrystal-loaded ODFs. RES nanocrystals were prepared by antisolvent precipitation in the existence of Poloxamer 188 as a polymeric stabilizer. Polyvinyl alcohol was used for the preparation of the ODFs by using the solvent casting method. Then, RES nanocrystals were incorporated into the films. Particle size (PS), polydispersity index (PDI), and zeta potential (ZP) values were measured for nanocrystals. ODFs were characterized, and bioadhesion, disintegration, and in vitro release studies were performed. RES nanocrystals were obtained with 631 nm PS, 0.314 PDI and − 14.3 ZP values. Over 90% of RES nanocrystals were loaded in ODFs, which were approximately 75 µm in thickness. The thermal and crystal properties of nanocrystals in ODFs were preserved regarding DSC and FTIR analyses. Homogenous distribution in smooth films was observed on SEM. Mechanical properties and bioadhesion forces were found to be appropriate for ODFs. The disintegration time was found below 30 seconds for nanocrystal loaded films. RES nanocrystal loaded film formulations showed > 85% release in 5 minutes, significantly higher (p |
