Natural Rubber Latex in Biomedical Applications
Summary
Natural rubber latex (NRL) derived from the sap of Hevea brasiliensis has emerged as a versatile biomaterial across a spectrum of medical uses. Its inherent elasticity, porosity and mechanical resilience enable its transformation into membranes, dressings and scaffolds that support tissue regeneration. NRL exhibits favourable cell adhesion and angiogenic stimulation, promoting vascular ingrowth and accelerating wound closure. In guided bone regeneration, NRL membranes act as semi-permeable barriers, directing osteogenic cells while preventing fibrous tissue invasion. In drug-delivery contexts, NRL matrices permit sustained release of therapeutic agents by tuning polymerisation conditions and membrane morphology. Biocompatibility studies have confirmed minimal cytotoxicity and controlled inflammatory responses, although latex proteins may require purification or chemical modification to mitigate hypersensitivity. Recent advances focus on hybrid composites—integrating nanoparticles, growth factors or extracellular matrices—to enhance mechanical strength, biodegradability and bioactivity. The renewable nature and cost–performance balance of NRL position it as a promising material for wound dressings, bone grafts, vascular patches and implantable devices, with ongoing efforts to refine its safety profile and regulatory compliance for clinical translation.
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Natural Rubber Latex in Biomedical Applications publication trend
The graph below shows the total number of articles in natural rubber latex in biomedical applications across all publications each year (not limited to Nature Index journals).
Technical terms
Natural rubber latex (NRL): a milky fluid from Hevea brasiliensis rich in cis-1,4-polyisoprene used as a biopolymer for its elasticity and resilience.
Biocompatibility: the capacity of a material to perform its function in a host without eliciting adverse immune or toxic responses.
Guided bone regeneration (GBR): a surgical approach employing barrier membranes to direct new bone growth while excluding soft tissue infiltration.
Non-Fickian diffusion: a release mechanism in polymeric matrices where transport is governed by both diffusion and polymer relaxation or swelling.
References
- Natural rubber latex used as drug delivery system in guided bone regeneration (GBR). Materials Research (2009).
- Ciprofloxacin Release Using Natural Rubber Latex Membranes as Carrier. International Journal of Biomaterials (2014).
- Latex and natural rubber: recent advances for biomedical applications. Polímeros (2022).
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