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Preparation and evaluation of multifunctional envelope-type nano device loading siRNA
Hongli Yin1, Aizhen Mu2, Yong Sun1
1School of Pharmacy, Qingdao University, Qingdao, P. R. China.
Artificial Cells, Nanomedicine, and Biotechnology
|May 17, 2014
Summary
Multifunctional envelope-type nano devices (MENDs) efficiently encapsulate siRNA, showing excellent plasma stability and nearly 100% transfection efficiency in cellular assays.
Area of Science:
- Nanotechnology
- Biomedical Engineering
- Drug Delivery
Background:
- RNA interference (RNAi) therapeutics require effective delivery systems.
- Nanoparticle-based carriers are crucial for protecting siRNA and facilitating cellular uptake.
Purpose of the Study:
- To develop and characterize multifunctional envelope-type nano devices (MENDs) for siRNA delivery.
- To evaluate the physicochemical properties, stability, and transfection efficiency of MENDs.
Main Methods:
- siRNA was loaded into MENDs using the lipid film hydration method.
- MEND characteristics were assessed for shape, particle size, zeta potential, and encapsulation efficiency (EE).
- Plasma stability and in vitro transfection efficiency were evaluated.
Main Results:
- MENDs exhibited uniform particle size and a positive zeta potential.
- High siRNA encapsulation efficiency (86.4%) was achieved.
- MENDs demonstrated significant plasma stability with no siRNA degradation after 48h in 50% serum.
- Nearly 100% transfection efficiency was observed at 500 nM siRNA concentration.
Conclusions:
- MENDs are a promising nanocarrier for siRNA delivery.
- The developed MEND formulation offers excellent stability and high transfection efficacy.
- MENDs hold potential for advancing RNAi-based therapeutic applications.
