Formulation characterization and in vitro drug release of hydrogel-thickened nanoemulsions for topical delivery of 8-methoxypsoralen.

Psoralens are lipophilic molecules used to treat skin diseases such as vitiligo and psoriasis, among them, 8-Methoxypsoralen (8-MOP) is the most used to topical skin application. Topical treatment with psoralens can be limited due to insufficient drug penetration into the skin layers. Nanoemulsions have attracted much attention due to their as dermal delivery systems for lipophilic drugs such as 8-MOP.

Dual alginate-lipid nanocarriers as oral delivery systems for amphotericin B.

Amphotericin B (AmB) is the first-choice drug to treat several fungal infections. However, due to its low solubility it can only be administrated intravenously. Nanostructured lipid carriers (NLC) have the ability to encapsulate hydrophobic drugs in an aqueous matrix, making them interesting for use in alternative drug delivery systems for AmB.

Hydrogel-thickened nanoemulsions based on essential oils for topical delivery of psoralen: Permeation and stability studies.

Nanoemulsions (NE) have attracted much attention due to their as dermal delivery systems for lipophilic drugs such as psoralens. However, NE feature low viscosity which might be unsuitable for topical application. In this work, we produced hydrogel-thickened nanoemulsions (HTN) using chitosan as thickening polymer to overcome the low viscosity attributed to NE.

Polymer-based Drug Delivery Systems Applied to Insects Repellents Devices: A Review.

Insects-borne diseases constitute a public health concern. Since there is no vaccine or curative treatment for many of these diseases, individual protection is the main approach to prevent them. Nowadays, the search for replacing synthetic molecules for insect repellents from natural sources, such as essential oils, is increasing.

Development and Evaluation of Nanoemulsions Containing Phthalocyanines for Use in Photodynamic Cancer Therapy.

This work reports the development of oil in water (o/w) nanoemulsions containing poly(ethylene oxide)-poly(propylene oxide) block copolymer surfactant for the formulation of a delivery system for endovenous zinc and chloroaluminum phthalocyanines. A solubility study suggested clove oil and its combination with ethanol as the best candidates for the oil phase composition. The nanoemulsions were obtained using a high-pressure homogenizer and analyzed for droplet size to determine their short- and long-term stability.