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Representative SEM micrograph of nanoparticles formulated via sulfate gelation with Na2SO4. (A) chitosan nanoparticles, (B) thiolated chitosan (NAP-C) nanoparticles, (C) DOX-NAC-C nanoparticles, (D) ASOND-NAC-C nanoparticles demonstrate a spherical, uniform shape with a particle size of 150–300 nm.
Abbreviations: DOX, doxorubicin; NAC-C, N-acetyl cysteine-chitosan; NAP-C, N-acetyl penicillamine-chitosan; ASOND, antisense oligonucleotide; SEM, scanning electron microscope.
