Luu, Cuong Hung and Nguyen, Dinh Tien Dung and Chee, Ching Yern and Thi, Tram Chau Nguyen and Nguyen, Dong Yen Pham and Nguyen, Dai Hai and Nguyen, Cuu Khoa (2023) Thermal and redox responsive polyamidoamine dendrimer-poly(N-isopropylacrylamide) bridged by disulfide linkages for targeted and controlled drug delivery system. Journal of Applied Polymer Science, 140 (27). ISSN 0021-8995, DOI https://doi.org/10.1002/app.54108.
Full text not available from this repository.Abstract
Multifactor-responsive nanomaterials have been playing a vital role in drug delivery developments. Given the advantages of nanotechnology-based systems, employing stimuli-sensitive agents could offer a step forward to targeted drug delivery. Hence, we targeted to apply both thermal and redox-sensitive agents, which are poly(N-isopropylacrylamide) (PNIPAM) and disulfide, onto a classic platform polyamidoamine (PAMAM) dendrimer. In particular, PAMAM G3.5 was first grafted by an outermost layer composed of cystamine moieties and partially grafted with PNIPAM segments. This novel nanomaterial was successfully verified by FTIR, 1H NMR, and Raman spectroscopy. Besides, morphological and surface characteristics were observed by DLS, TEM, and zeta potential. Our novel drug delivery system displayed a spherical shape with a hydrodynamic size of 43.61 +/- 6.04 nm at 37 degrees C and 68.99 +/- 4.69 nm at 15 degrees C, which proved its thermoresponsiveness. In parallel, the response of the nanoparticles toward redox concentration variation was testified that demonstrated a controlled drug release highly depending on physiological stimuli. We have also conducted in vitro DOX release and cytocompatibility of this drug delivery system, which can premise a smart strategy for nanoengineering in targeted drug delivery for cancer therapy.
| Item Type: | Article |
|---|---|
| Funders: | National Foundation for Science & Technology Development (NAFOSTED) (104.02-2019.38) |
| Uncontrolled Keywords: | disulfide; poly(N-ispropylacrylamide); Polyamidoamine; redox-responsive; thermal-responsive |
| Subjects: | Q Science > Q Science (General) |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 28 Jul 2025 04:45 |
| Last Modified: | 28 Jul 2025 04:45 |
| URI: | http://eprints.um.edu.my/id/eprint/50787 |
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