Biomimetic core-shell structure for uv-resistant nanocarriers in agrochemicals
A biomimetic core-shell nanocarrier system uses polydopamine and lignin to enhance UV resistance and stability of pesticide delivery in sunlight-exposed environments. This innovative approach combines UV protection and biodegradability for improved agrochemical performance.
Overview
The biomimetic core-shell nanocarrier system offers an innovative solution for enhancing the UV resistance and stability of pesticide delivery in agrochemical applications. Inspired by natural UV-protection mechanisms found in insect cuticles, this system employs a core of pesticide-loaded nanoparticles surrounded by a hybrid shell of polydopamine (PDA) and lignin. PDA provides effective UV shielding, while lignin contributes to structural stability and biodegradability, creating a sustainable approach to agrochemical delivery in environments exposed to sunlight.
Technical specifications
Key features:
- Core-shell design: Pesticide-loaded nanoparticles form the core with a PDA-lignin hybrid shell.
- UV protection: PDA offers broad-spectrum UV absorption (200–400 nm), enhancing the photostability of agrochemicals.
- Biodegradability: Lignin improves the environmental sustainability of the delivery system.
- Nanoparticle preparation: Co-formulation with tea saponin and zein via anti-solvent precipitation yields nanoparticles with excellent leaf deposition and dispersion.
- Stability and morphology analysis: Characterized by TEM, DLS, and zeta potential analysis.
Technology readiness level
This technology is at TRL 3, indicating that it has been demonstrated in a laboratory setting. Future validation includes testing pesticide-loaded nanoparticles for morphology, stability, and photostability, as well as insecticidal efficacy under controlled conditions.
About Dalian University of Technology
Dalian University of Technology is a leading public research university in northeast China with a strong engineering core and broad interdisciplinary programs. Industry partners engage through co-located laboratories, joint research institutes, and specialized testing and prototyping facilities. A university-affiliated science and technology park and proximity to the Dalian High-Tech Zone give companies convenient access to talent, facilities, and regional supply chains. Research is supported by competitive national funding in China, including the National Natural Science Foundation of China and the Ministry of Science and Technology, plus provincial and industry support. A dedicated technology transfer office supports IP strategy, licensing, startup incubation, and collaborative agreements.
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