Microneedles mediated-dermal delivery of Vitamin C: Formulation, characterization, cytotoxicity, and enhancement of stability.

Vitamin C (VIT C) is an antioxidant that prevents skin aging. Although dermal delivery is one of the most effective routes to transport VIT C to the skin, the impact of this route can be limited by the barrier function of the (SC). Additionally, VIT C rapidly oxidized and degraded under light and temperature.

Microemulsions as Lipid Nanosystems Loaded into Thermoresponsive In Situ Microgels for Local Ocular Delivery of Prednisolone.

This study aimed to develop and evaluate thermoresponsive in situ microgels for the local ocular delivery of prednisolone (PRD) (PRD microgels) to improve drug bioavailability and prolong ocular drug residence time. Lipid nanosystems of PRD microemulsions (PRD-MEs) were prepared and evaluated at a drug concentration of 0.25-0.

Concentration of a microemulsion influences the mechanical properties of ibuprofen in situ microgels.

The aim of this study was to develop an ibuprofen microemulsion (IBU-ME) incorporated into in situ gels (microgels) for local delivery into periodontal pockets. The IBU-ME was prepared at a concentration of 1% w/v IBU. Various concentrations of the thermosensitive Pluronic® F127 (P127) solution and a series of combinations of the P127 solution and IBU-ME at a 1:1 ratio were initially developed and tested to determine their sol-gel transition temperatures (T).