Abstract
Multiple functionalization of nanoparticles has attracted great interest in drug delivery. In this paper, polymeric amphiphiles of polyethylenimine (PEI) conjugated with methoxy poly(ethylene glycol) aldehyde (mPEG-CHO), poly(ε caprolactone) aldehyde (PCL-CHO) and pyrene-1-carboxaldehyde (Py-CHO) were synthesized via Schiff’s reaction. The conjugates self-assembled into nanoparticles with pH-sensitivity to load anticancer drug doxorubicin (DOX), further coated with hyaluronic acid (HA) for tumor targeting. The mean size of nanoparticles was about 100nm and the stability of the nanoparticles was well in aqueous solution. The nanoparticles coated with HA showed faster disassembly in acidic solution, resulting in faster drug release in the medium with pH 5.0 compared to uncoated nanoparticles. Moreover, the nanoparticles exhibited an endosomal escape function to accelerate the release of DOX in cancer cells, which led to low IC50s to kill breast cancer cells (4T1) and liver cancer cells (HepG2) in vitro.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
