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Nano-Enabled Seed Treatment Using Bisepoxide-Polyoxypropylenetriamine Polymeric Gel with Different Embedded Zinc
Felipe B Alves1, Adela S M Goñi1,2, Bruno A Fico1
1University of Franca, Av. Dr. Armando Salles Oliveira 201, Franca 14404-600, SP, Brazil.
Gels (Basel, Switzerland)
|March 26, 2025
Summary
Green synthesized nanocarriers (TGel) effectively deliver zinc to cucumber seeds, enhancing nutrient uptake without impacting plant physiology. This sustainable approach supports agricultural advancements in food security.
Area of Science:
- Agricultural Science
- Materials Science
- Nanotechnology
Background:
- Sustainable agriculture is crucial for global food security and nutrition.
- Amine-epoxide materials offer tunable properties for agricultural applications.
- Nutrient delivery via seed priming is an efficient agricultural strategy.
Purpose of the Study:
- To develop a green synthesized nanocarrier (TGel) for nutrient delivery in agriculture.
- To investigate the encapsulation and release of zinc (Zn) using TGel.
- To evaluate the effect of Zn-loaded TGel on cucumber plant physiology.
Main Methods:
- Catalyst-free green synthesis of TGel nanocarriers using water as a solvent.
- Characterization of TGel particle size and morphology using Transmission Electron Microscopy (TEM) and Dynamic Light Scattering (DLS).
- Analysis of Zn and EDTA interactions with TGel using theoretical bonding analysis, Micro X-ray fluorescence (μ-XRF), and Energy-dispersive X-ray fluorescence spectroscopy (EDXRF).
Main Results:
- Spherical TGel nanocarriers were synthesized, with sizes ranging from 80 nm (unloaded) to 360 nm (zinc-loaded).
- Zn cations and EDTA showed specific bonding interactions (σ-bonds and hydrogen bonds, respectively) with the TGel polymer.
- Zn distribution in cucumber seed compartments and shoots was confirmed, with no adverse effects on photosynthetic efficacy, chlorophyll, or anthocyanin indices.
Conclusions:
- Catalyst-free synthesized TGel nanocarriers are effective for zinc delivery to cucumber seeds.
- The developed nanocarrier system supports nutrient uptake and plant growth without compromising plant physiology.
- This research presents a promising sustainable nanotechnology approach for enhancing agricultural productivity.

