Adsorption and release of siRNA from porous silica.

ABSTRACT: Porous silica particles are potential transfection agents for nucleic acid-based therapies because of their large specific surface areas and pore volumes and the ease with which they can be chemically modified to maximize the loading of cargo and to effect targeting in vivo. Here, we present a systematic study of the effects of pore size and pore modification on the adsorption and release of short, interfering RNA (siRNA) from a mesoporous silica particle developed in our laboratory. Using adsorption isotherms and release experiments, we found that the short polyamine diethylenetriamine was the best chemical modification for achieving both the adsorption and release of large amounts of siRNA. The degree of functionalization with diethylenetriamine caused drastic changes in the loading capa

SUBMITTER: Steinbacher JL 

PROVIDER: S-EPMC3997627 | biostudies-literature | 2014 Apr

REPOSITORIES: biostudies-literature