AI Article Synopsis
- Researchers created nanoparticles using a biocompatible copolymer (mPEG--P(D,L)LA) to deliver the anticancer drug oxaliplatin through a method called nanoprecipitation.
- They found that increasing the hydrophobic part of the copolymer led to larger nanoparticles, growing from 32 nm to 56 nm in size.
- The study also revealed that shorter hydrophobic blocks allowed for better loading efficiency of oxaliplatin, achieving a maximum loading content of 3.8% with 76% encapsulation efficiency when using the shorter chains.
Article Abstract
Nanoparticles based on biocompatible methoxy poly(ethylene glycol)--poly(D,L-lactide) (mPEG--P(D,L)LA) copolymers as potential vehicles for the anticancer agent oxaliplatin were prepared by a nanoprecipitation technique. It was demonstrated that an increase in the hydrophobic PLA block length from 62 to 173 monomer units leads to an increase of the size of nanoparticles from 32 to 56 nm. Small-angle X-ray scattering studies confirmed the "core-corona" structure of mPEG--P(D,L)LA nanoparticles and oxaliplatin loading. It was suggested that hydrophilic oxaliplatin is adsorbed on the core-corona interface of the nanoparticles during the nanoprecipitation process. The oxaliplatin loading content decreased from 3.8 to 1.5% wt./wt. (with initial loading of 5% wt./wt.) with increasing PLA block length. Thus, the highest loading content of the anticancer drug oxaliplatin with its encapsulation efficiency of 76% in mPEG--P(D,L)LA nanoparticles can be achieved for block copolymer with short hydrophobic block.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7865450 | PMC |
| http://dx.doi.org/10.3390/molecules26030602 | DOI Listing |
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