Summary
This narrative review synthesises current knowledge on chitosan-based polymeric nanoparticles as tools for sustainable agriculture, with emphasis on nitric oxide-releasing nanosystems. The authors argue that these nanotechnologies offer multifunctional platforms for enhancing plant stress resilience, improving water use efficiency, and reducing environmental impact through controlled release of bioactive compounds and decreased agrochemical dependency. The review considers both present challenges and future opportunities for safe deployment of such nanotechnologies in agricultural systems.
Regional applicability
The findings are internationally applicable and relevant to United Kingdom farming, particularly as UK agriculture faces increasing pressure to improve productivity and resilience under climate variability whilst reducing chemical inputs. Chitosan nanoparticle technologies could support UK adoption of regenerative and sustainable farming practices, though regulatory pathways and cost-effectiveness for UK-scale deployment would require further evaluation.
Key measures
Structural and functional properties of chitosan nanoparticles; plant physiological responses; water use efficiency; oxidative stress regulation; crop performance under drought and salinity stress; eco-efficiency metrics.
Outcomes reported
The review examines how chitosan-based polymeric nanoparticles, particularly nitric oxide-releasing nanosystems, can enhance plant resilience to abiotic stress and improve crop performance under drought and salinity conditions. It evaluates the role of these nanotechnologies in supporting sustainable farming practices through targeted delivery and reduced agrochemical reliance.
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