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Enhancing Cellular Internalization of Single-Chain Polymer Nanoparticles via Polyplex Formation.


ABSTRACT: Intracellular delivery of nanoparticles is crucial in nanomedicine to reach optimal delivery of therapeutics and imaging agents. Single-chain polymer nanoparticles (SCNPs) are an interesting class of nanoparticles due to their unique site range of 5-20 nm. The intracellular delivery of SCNPs can be enhanced by using delivery agents. Here, a positive polymer is used to form polyplexes with SCNPs, similar to the strategy of protein and gene delivery. The size and surface charge of the polyplexes were evaluated. The cellular uptake showed rapid uptake of SCNPs via polyplex formation, and the cytosolic delivery of the SCNPs was presented by confocal microscopy. The ability of SCNPs to act as nanocarriers was further explored by conjugation of doxorubicin.

SUBMITTER: Hamelmann NM 

PROVIDER: S-EPMC9748935 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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Enhancing Cellular Internalization of Single-Chain Polymer Nanoparticles via Polyplex Formation.

Hamelmann Naomi M NM   Uijttewaal Sjoerd S   Hujaya Sry D SD   Paulusse Jos M J JMJ  

Biomacromolecules 20221116 12


Intracellular delivery of nanoparticles is crucial in nanomedicine to reach optimal delivery of therapeutics and imaging agents. Single-chain polymer nanoparticles (SCNPs) are an interesting class of nanoparticles due to their unique site range of 5-20 nm. The intracellular delivery of SCNPs can be enhanced by using delivery agents. Here, a positive polymer is used to form polyplexes with SCNPs, similar to the strategy of protein and gene delivery. The size and surface charge of the polyplexes w  ...[more]

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