nanoparticle; pharmaceutical or cosmetic composition; use; method for improving the stability of a retinoid method for improving the dispersibility of a retinoid; method for providing sustained release of a retinoid; method for increasing skin penetration of a retinoid; method for increasing drug encapsulation tumor accumulation; method for reducing drug accumulation in non-tumor bearing tissues; method for reducing the toxicity of a retinoid; method for reducing skin irritation classification of a topically applied encapsulant retinoid comprising a plurality of nanoparticles; method of preparing a nanoparticle

摘要

The invention encompasses nanoparticle assemblies and methods for preparing nanoparticle and compositions comprising such nanoparticles for use in topical or skin applications. The invention further encompasses methods of complexing various molecular and cellular entities to the nanoparticles using the resulting nanoparticles of the invention as delivery devices. The nanoparticles can be used for a variety of applications, such as treating cancer, targeting tumors, reducing the toxicity of a drug in vivo, increasing the efficacy of a complexed agent in vivo, protecting a complexed agent against degradation, increasing skin penetration and retention of drugs, and enhancing the water solubility/dispersibility of a drug or other agent.