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Jisha Annie Geevarghese,
Chitra Khanwelkar,
Rashmi Gudur,
Bijoy Kumar Panda,
- , Krishna Institute of Pharmacy, Krishna Vishwa Vidyapeeth (Deemed to be University), Karad, Maharashtra, India
- , Krishna Institute of Medical Sciences, Krishna Vishwa Vidyapeeth (Deemed to be University), Karad, Maharashtra, India
- , Krishna Institute of Medical Sciences, Krishna Vishwa Vidyapeeth (Deemed to be University), Karad-415539, Maharashtra, India
- , Krishna Institute of Pharmacy, Krishna Vishwa Vidyapeeth (Deemed to be University), Karad, Maharashtra, India
Abstract
Polymer chemistry has revolutionized pharmaceutical technology by enabling the development of advanced drug delivery systems with improved precision, stability, and therapeutic outcomes. This review explores the role of polymer design, synthesis, and functionalization in the development of responsive and targeted drug carriers. Emphasis is placed on various types of polymers—biodegradable, synthetic, natural, and stimuli-responsive—and their suitability for drug delivery platforms such as nanoparticles, micelles, hydrogels, dendrimers, and implants. The physicochemical properties of polymers, including architecture, crosslinking, and functional group availability, are discussed in relation to their drug loading efficiency, release kinetics, and bioavailability. The paper also details polymer synthesis techniques, including free radical and ring-opening polymerization, as well as green chemistry approaches aimed at sustainability. Case studies in oncology, vaccine delivery, gene therapy, and transdermal systems illustrate real-world applications. Additionally, regulatory and industrial considerations are addressed, highlighting the translational potential of polymer-based systems. This review underscores the interdisciplinary integration of polymer science and pharmaceutical technology, presenting polymer chemistry as a cornerstone for next-generation therapeutics. Future research directions focus on personalized medicine, responsive delivery systems, and scalable manufacturing of safe, effective polymer-based therapeutics.
Keywords: polymer chemistry, drug delivery, nanocarriers, hydrogels, smart polymers, PLGA, controlled release, pharmaceutical technology.
Jisha Annie Geevarghese, Chitra Khanwelkar, Rashmi Gudur, Bijoy Kumar Panda. Polymer Chemistry-Driven Approaches for Improved Therapeutic Delivery. Journal of Polymer and Composites. 2025; 13(06):-.
Jisha Annie Geevarghese, Chitra Khanwelkar, Rashmi Gudur, Bijoy Kumar Panda. Polymer Chemistry-Driven Approaches for Improved Therapeutic Delivery. Journal of Polymer and Composites. 2025; 13(06):-. Available from: https://journals.stmjournals.com/jopc/article=2025/view=224235
References
- Sethi B, Kumar V, Mahato K, Coulter DW, Mahato RI. Recent advances in drug delivery and targeting to the brain. Journal of Controlled Release. 2022 Oct 1;350:668-87.
- Wei P, Cornel EJ, Du J. Ultrasound-responsive polymer-based drug delivery systems. Drug Delivery and Translational Research. 2021 Aug;11:1323-39.
- Roy D, Cambre JN, Sumerlin BS. Future perspectives and recent advances in stimuli-responsive materials. Prog Polym Sci. 2010;35(1-2):278–301.
- Qiu Y, Park K. Environment-sensitive hydrogels for drug delivery. Adv Drug Deliv Rev. 2012;64:49–60.
- Makadia HK, Siegel SJ. Poly lactic-co-glycolic acid (PLGA) as biodegradable controlled drug delivery carrier. Polymers (Basel). 2011;3(3):1377–1397.
- Zhang Y-R, Lin R, Li H-J, et al. Strategies for improving the efficiency of polymer-based drug delivery systems. Nat Sci Rev. 2021;8(1):nwaa010.
- Veronese FM, Mero A. The impact of PEGylation on biological therapies. BioDrugs. 2008;22(5):315–329.
- Kumari, A., Yadav, S. K., & Yadav, S. C. (2010). Biodegradable polymeric nanoparticles based drug delivery systems. Colloids and Surfaces B: Biointerfaces, 75(1), 1–18.
- Peppas, N. A., Bures, P., Leobandung, W., & Ichikawa, H. (2000). Hydrogels in pharmaceutical formulations. European Journal of Pharmaceutics and Biopharmaceutics, 50(1), 27–46.
- Khandare, J., & Minko, T. (2006). Polymer–drug conjugates: Progress in polymeric prodrugs. Progress in Polymer Science, 31(4), 359–397.
- Qiu, Y., & Park, K. (2001). Environment-sensitive hydrogels for drug delivery. Advanced Drug Delivery Reviews, 53(3), 321–339.
- Gil, E. S., & Hudson, S. M. (2004). Stimuli-reponsive polymers and their bioconjugates. Progress in Polymer Science, 29(12), 1173–1222.
- Ulijn, R. V., & Bibi, N. (2010). Enzyme-responsive materials: A new class of smart biomaterials. Chemical Society Reviews, 39(9), 3351–3357.
- Matyjaszewski, K., & Xia, J. (2001). Atom transfer radical polymerization. Chemical Reviews, 101(9), 2921–2990. https://doi.org/10.1021/cr940534g
- Carraher, C. E. (2017). Introduction to Polymer Chemistry (4th ed.). CRC Press.
- Albertsson, A. C., & Varma, I. K. (2003). Recent developments in ring opening polymerization of lactones for biomedical applications. Biomacromolecules, 4(6), 1466–1486. https://doi.org/10.1021/bm0342472
- Bhattarai, N., Gunn, J., & Zhang, M. (2010). Chitosan-based hydrogels for controlled, localized drug delivery. Advanced Drug Delivery Reviews, 62(1), 83–99. https://doi.org/10.1016/j.addr.2009.07.019
- Lutz, J. F., Zarafshani, Z., & Hoth, A. (2008). Click chemistry in polymer and materials science. Polymer Chemistry, 1(1), 15–32. https://doi.org/10.1039/B9PY00205F
- Danhier, F., Feron, O., & Préat, V. (2010). To exploit the tumor microenvironment: Passive and active tumor targeting of nanocarriers for anti-cancer drug delivery. Journal of Controlled Release, 148(2), 135–146. https://doi.org/10.1016/j.jconrel.2010.08.027
- Knop, K., Hoogenboom, R., Fischer, D., & Schubert, U. S. (2010). Poly(ethylene glycol) in drug delivery: Pros and cons as well as potential alternatives. Angewandte Chemie International Edition, 49(36), 6288–6308. https://doi.org/10.1002/anie.200902672
- Sheldon, R. A. (2016). Biocatalysis and green chemistry. In Biocatalysis in Organic Synthesis: The Retrosynthesis Approach (pp. 1–23). Royal Society of Chemistry. https://doi.org/10.1039/9781782622691-00001
- Mehta, R., Kumar, V., Bhunia, H., & Upadhyay, S. N. (2005). Synthesis of poly(lactic acid): A review. Journal of Macromolecular Science, Part C: Polymer Reviews, 45(4), 325–349. https://doi.org/10.1080/15583720500304057
- Kwon, G. S., & Okano, T. (1996). Polymeric micelles as new drug carriers. Advanced Drug Delivery Reviews, 21(2), 107–116. https://doi.org/10.1016/0169-409X(96)00011-3
- Lozinsky, V. I. (2008). Cryogels on the basis of natural and synthetic polymers: Preparation, properties and application. Russian Chemical Reviews, 77(10), 909–927. https://doi.org/10.1070/RC2008v077n10ABEH003827
- Kesharwani, P., Iyer, A. K., Gajbhiye, V., & Tekade, R. K. (2014). Poly(amidoamine) dendrimer based hybrid nanocarrier for targeted delivery of chemotherapy drugs. Journal of Drug Targeting, 22(9), 768–786. https://doi.org/10.3109/1061186X.2014.944592
- Frechet, J. M. J. (2001). Dendrimers and other dendritic macromolecules: From building blocks to functional assemblies in nanoscience and nanotechnology. Journal of Polymer Science Part A: Polymer Chemistry, 39(11), 1529–1536. https://doi.org/10.1002/pola.10010
- Shive, M. S., & Anderson, J. M. (1997). Biodegradation and biocompatibility of PLA and PLGA microspheres. Advanced Drug Delivery Reviews, 28(1), 5–24. https://doi.org/10.1016/S0169-409X(97)00048-3
- Zhang, L., Gu, F. X., Chan, J. M., Wang, A. Z., Langer, R. S., & Farokhzad, O. C. (2008). Nanoparticles in medicine: Therapeutic applications and developments. Clinical Pharmacology & Therapeutics, 83(5), 761–769. https://doi.org/10.1038/sj.clpt.6100400
- Greenwald, R. B., Choe, Y. H., McGuire, J., & Conover, C. D. (2003). Effective drug delivery by PEGylated drug conjugates. Advanced Drug Delivery Reviews, 55(2), 217–250. https://doi.org/10.1016/S0169-409X(02)00180-1
- Loftsson, T., & Brewster, M. E. (2010). Pharmaceutical applications of cyclodextrins: Basic science and product development. Journal of Pharmacy and Pharmacology, 62(11), 1607–1621. https://doi.org/10.1111/j.2042-7158.2010.01139.x
- Higuchi, T. (1963). Mechanism of sustained-action medication. Theoretical analysis of rate of release of solid drugs dispersed in solid matrices. Journal of Pharmaceutical Sciences, 52(12), 1145–1149. https://doi.org/10.1002/jps.2600521210
- Peppas, N. A., & Sahlin, J. J. (1989). A simple equation for the description of solute release. III. Coupling of diffusion and relaxation. International Journal of Pharmaceutics, 57(2), 169–172. https://doi.org/10.1016/0378-5173(89)90306-2
- Siew, A., Le, H., Thiovolet, M., Gellert, P., Schatzlein, A. G., & Uchegbu, I. F. (2012). Enhanced oral absorption of hydrophobic and hydrophilic drugs using quaternary ammonium palmitoyl glycol chitosan nanoparticles. Molecular Pharmaceutics, 9(1), 14–28. https://doi.org/10.1021/mp200305f
- Verma, S., Lan, Y., Gokhale, R., & Burgess, D. J. (2013). Quality by design approach to understand the process of lyophilization. International Journal of Pharmaceutics, 447(1-2), 8–17. https://doi.org/10.1016/j.ijpharm.2013.02.012
- Barenholz, Y. (2012). Doxil® — the first FDA-approved nano-drug: Lessons learned. Journal of Controlled Release, 160(2), 117–134. https://doi.org/10.1016/j.jconrel.2012.03.020
- Pandey, A., Singh, D., & Singh, M. (2019). Formulation and evaluation of polymeric nanoparticles of imatinib mesylate. Pharmaceutical Nanotechnology, 7(3), 190–196. https://doi.org/10.2174/2211738507666190712153706
- Alderman, D. A. (1984). A review of cellulose ethers in hydrophilic matrices for oral controlled-release dosage forms. International Journal of Pharmaceutics, 14(1), 1–30. https://doi.org/10.1016/0378-5173(84)90003-9
- Prausnitz, M. R., & Langer, R. (2008). Transdermal drug delivery. Nature Biotechnology, 26(11), 1261–1268. https://doi.org/10.1038/nbt.1504
- Mohan, T., Verma, P., & Rao, D. N. (2013). Novel polymeric nanoparticles for vaccine delivery. Indian Journal of Medical Research, 138(5), 687–706.
- van der Lubben, I. M., Verhoef, J. C., Borchard, G., & Junginger, H. E. (2003). Chitosan and its derivatives in mucosal drug and vaccine delivery. European Journal of Pharmaceutical Sciences, 14(3), 201–207. https://doi.org/10.1016/S0928-0987(01)00201-4
- Godbey, W. T., Wu, K. K., & Mikos, A. G. (2001). Poly(ethylenimine)-mediated gene delivery affects endothelial cell function and viability. Biomaterials, 22(5), 471–480. https://doi.org/10.1016/S0142-9612(00)00201-2
- Ratner, B. D., Hoffman, A. S., Schoen, F. J., & Lemons, J. E. (2004). Biomaterials science: An introduction to materials in medicine (2nd ed.). Academic Press.
- Danhier, F., Ansorena, E., Silva, J. M., Coco, R., Le Breton, A., & Préat, V. (2012). PLGA-based nanoparticles: An overview of biomedical applications. Journal of Controlled Release, 161(2), 505–522. https://doi.org/10.1016/j.jconrel.2012.01.043
- Zhou, Y., Wang, J., Gu, Z., Wang, S., Zhu, C., & Yung, B. C. (2020). Immunogenicity of nanocarriers. Advanced Drug Delivery Reviews, 156, 139–151. https://doi.org/10.1016/j.addr.2020.07.013
- Okada, H. (1997). One- and three-month release injectable microspheres of the LH-RH superagonist leuprorelin acetate. Advanced Drug Delivery Reviews, 28(1), 43–70. https://doi.org/10.1016/S0169-409X(97)00043-0
- Cleland, J. L. (1998). Solvent evaporation processes for the production of controlled release biodegradable microsphere formulations for therapeutic proteins. Advanced Drug Delivery Reviews, 28(1), 85–97. https://doi.org/10.1016/S0169-409X(97)00046-6
- Desai, K. G. H. (2012). Challenges and strategies in scale-up and manufacturing of polymer-based nanoparticles for drug delivery. Advanced Drug Delivery Reviews, 64(13), 1419–1430. https://doi.org/10.1016/j.addr.2012.09.009
- Crommelin, D. J. A., de Vlieger, J. S. B., & Burgess, D. J. (2020). Drug product development for the back of the eye. Springer.

Journal of Polymer & Composites
| Volume | 13 |
| 06 | |
| Received | 13/05/2025 |
| Accepted | 29/05/2025 |
| Published | 21/08/2025 |
| Publication Time | 100 Days |
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