Matches in SemOpenAlex for { <https://semopenalex.org/work/W4310458530> ?p ?o ?g. }
- W4310458530 abstract "Abstract Polyethylenimine (PEI) is a commonly used cationic polymer for small‐interfering RNA (siRNA) delivery due to its high transfection efficiency at low commercial cost. However, high molecular weight PEI is cytotoxic and thus, its practical application is limited. In this study, different formulations of low molecular weight PEI (LMW‐PEI) based copolymers polyethylenimine‐ g ‐polycaprolactone (PEI–PCL) (800 Da–40 kDa) and PEI–PCL–PEI (5–5–5 kDa) blended with or without polyethylene glycol‐ b ‐polycaprolactone (PEG–PCL) (5 kDa‐4 kDa) are investigated to prepare nanoparticles via nanoprecipitation using a solvent displacement method with sizes ≈100 nm. PEG–PCL can stabilize the nanoparticles, improve their biocompatibility, and extend their circulation time in vivo. The nanoparticles composed of PEI–PCL–PEI and PEG–PCL show higher siRNA encapsulation efficiency than PEI–PCL/PEG–PCL based nanoparticles at low N/P ratios, higher cellular uptake, and a gene silencing efficiency of ≈40% as a result of the higher molecular weight PEI blocks. These results suggest that the PEI–PCL–PEI/PEG–PCL nanoparticle system could be a promising vehicle for siRNA delivery at minimal synthetic effort." @default.
- W4310458530 created "2022-12-10" @default.
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- W4310458530 date "2022-12-09" @default.
- W4310458530 modified "2023-09-27" @default.
- W4310458530 title "Synthesis and Application of Low Molecular Weight PEI‐Based Copolymers for siRNA Delivery with Smart Polymer Blends" @default.
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- W4310458530 doi "https://doi.org/10.1002/mabi.202200409" @default.
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