Mahmoud Bahreloloum Tabatabai, Mohammad Mirjalili, Fatemeh Yazdiyan, Seyedhossein Hekmatimoghaddam,
Volume 22, Issue 1 (4-2019)
Abstract
Background and Aim: The aim of this study was to assess the applied characteristics of wound covers containing nanoliposomic essential oil of ajwain, with suitable antimicrobial properties and lack of cytotoxicity.
Materials and Methods: Liposomal formulations of the ajwain essential oil containing DSPE-PEG, cholesterol, span60 and SPC80 were prepared using a thin layer method. The rooting and spray methods on a cellulose fabric were used to produce skin wound cover. In addition to in vitro intracellular penetration and measurement of minimum inhibitory concentration of the product, textile characteristics, antimicrobial activity and 96 hours release of the essence in the wound cover were studied.
Ethical Considerations: In this study, all principles of research ethics were considered.
Findings: The loading efficiency of the liposomal formulation was more than 85%. The small particle dispersion index (PDI = 0.02) in the form of the PEGylated formulation indicates optimal dispersion of the particles which reduces the buildup of the drug in the cutaneous application. The standard AATCC microbial test showed inhibitory effect of the wound cover on bacteria, especially E. coli. Textile tests indicated acceptable properties of the produced wound cover, too.
Conclusion: Altogether, this wound cover showed acceptable features in combating the two selected bacteria responsible for infectious skin ulcers.
Rouhollah Hemmati Bushehri, Mahmoud Reza Jaafari, Ghasem Mosayebi, Ali Ghazavi, Ali Ganji,
Volume 27, Issue 6 (1-2025)
Abstract
Introduction: Nowadays, plant-derived compound is widely used in medical treatment as complementary therapies. Rosemary is one of these plants that have anti-angiogenic and anti-tumor effects. However, low solubility and low bioavailability lead to limited use of this compound. To overcome this limitation, the use of liposomes is beneficial. So, this study aimed to prepare liposomes containing rosemary alcoholic extract to obtain the best formulation with best properties to use in the antitumor study.
Methods: Liposomes were prepared by Thin-Film-Hydration method in different ratios of rosemary extract, hydrogenated-soybean-phosphatidylcholine (HSPC), Cholesterol, and mPEG2000 (F1-F6). The characterization of nanoliposomes includes size, PDI (Poly dispersity index), zeta potential, encapsulation efficiency, and release rate was measured.
Results: The results showed that the average particle size and zeta potential were 113.4 nm and -10.8 mV, respectively. Encapsulation efficiency showed a range of 60- 90%. The average release rate of the extract was about 60%. Also, the results showed that the F1 formulation was transparent, had appropriate properties, and did not precipitate. F2 formulation was not transparent. F3-F4 formulations were precipitated, and F5-F6 formulations did not achieve the appropriate size.
Conclusions: This study proved that F1 formulation in a ratio of 55:30:5 HSPC/chol/mPEG2000 is the best formulation for the preparation of nanoliposomes containing rosemary alcoholic extract to achieve the best properties for use in cancer studies.
