Ashok Singh Yadav,
Seema Verma,
Sahil Mehta,
Santosh Singh Yadav,
Trivender Kumar,
- Assistant Professor, Department of Botany, Satish Chandra College, Ballia, Uttar Pradesh, India
- Professor, Department of Zoology, Satish Chandra College, Ballia, Uttar Pradesh, India
- Assistant Professor, Department of Botany, Hansraj College, University of Delhi, Delhi, New Delhi, India
- Assistant professor, Department of Botany, Asha P.G. College, Sikhari Ghazipur, Uttar Pradesh, India
- Assistant Professor, Department of Chemistry, Satish Chandra College, Ballia, Uttar Pradesh, India
Abstract
The conventional method of drug delivery is plagued with instability, low targeting and low bioavailability. A solution to these shortcomings is the use of polymersomes, artificial vesicles that are produced through self-assembly of amphiphilic block copolymer, and they are suggested as universal nanoscale carriers. They have stiff, tunable membranes (thickness = 2–50 nm) due to accurate control of polymer chemistry, chain length, and hydrophilic mass fraction (f), which allows predictability of the drug loading and programmable release kinetics. Stimuli-responsive Polymersomes. Polymersomes can be designed to be responsive to stimuli (pH, redox/ROS, temperature/LCST) and disease-specific (disease-signal) delivery by modulating block composition (e.g., PEG-b-PCL/PLA, PMOXA-b-PDMS), glass transition (Tg), and critical packing parameter. PEGylation of surfaces or zwitterionic coronas decreases opsonisation and increases circulation, whereas click-chemistry (azide-alkyne, thiol-maleimide) and EDC/NHS-based coupling allow site-specific functionalization with antibodies, peptides, sugars, vitamins or small molecules to result in receptor-mediated targeting and further endosomal escape. The use of degradable polyesters (PLA, PLGA, PCL) or ROS-cleavable blocks (PPS) gives controllable biodegradation and good pharmacokinetics. In contrast, RAFT/ATRP synthesis pathways give low-dispersity (Đ) materials that can be scaled up by microfluidics, dual asymmetric centrifugation, or tangential-flow processing. Polymersomes mimic cellular membranes: they can be loaded with hydrophilic, hydrophobic and macromolecular cargos (proteins, peptides, nucleic acids) and reduce off-target toxicity by the rigidity of the membrane and steric stabilisation. This regulated discharge profile and biomimetic architecture locate polymersomes as second-generation macromolecular platforms in nanomedicine, having the potential to repair and regenerate tissues in systemic environments. Their formation, structure-property-function, and workflow relationships, highly developed surface chemistry, and scalable production make them an important emerging part of developing highly efficient, targeted drug-delivery systems.
Keywords: Polymersomes, block copolymers, nanocarriers, targeted drug delivery, surface functionalization, stimuli-responsive release.
[This article belongs to Journal of Polymer & Composites ]
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Journal of Polymer & Composites
| Volume | 14 | |
| Issue | 05 | |
| Received | 05/02/2026 | |
| Accepted | 16/06/2026 | |
| Published | 10/08/2026 | |
| Publication Time | 186 Days |