Cellulosic particle-based pickering emulsions for controlled nutrient delivery
A novel Pickering emulsion technology utilizing cellulose acetate particles (CAPs) for controlled nutrient delivery in turf fertilization. This biodegradable, surfactant-free emulsion allows for the encapsulation of both hydrophilic and hydrophobic nutrients, offering a sustainable alternative to conventional fertilizers.
Overview
The cellulosic particle-based Pickering emulsion represents a breakthrough in controlled nutrient delivery systems for turf fertilization. By leveraging cellulose acetate particles (CAPs) as stabilizers, this technology eliminates the need for traditional polymer coatings used in slow-release fertilizers. The emulsion can encapsulate water-soluble nutrients in its aqueous phase and hydrophobic nutrients in the oil phase, allowing for tailored nutrient release. This innovation reduces environmental impact and manufacturing complexity, offering a sustainable and efficient solution for agriculture.
Technical specifications
- Stabilization: Utilizes cellulose acetate particles (CAPs) for emulsion stability without surfactants.
- Encapsulation: Dual-phase system for hydrophilic nutrients (e.g., urea, MAP) and hydrophobic nutrients (e.g., abscisic acid).
- Customization: Nutrient release can be tailored by adjusting particle concentration, droplet size, oil/water ratio, and emulsion microstructure.
- Characterization: Stability and morphology assessed using SEM, confocal microscopy, DLS, and rheology.
Technology readiness level
Currently at TRL 4, this technology has demonstrated stable formulations and controlled release in laboratory settings. Further validation is planned through turfgrass growth chamber and greenhouse studies to optimize formulation stability, nutrient release, and agronomic performance.
About North Carolina State University
North Carolina State University is a large, comprehensive public land‑grant research university in Raleigh. Its on‑campus research and technology park co‑locates corporate R&D groups, government partners, and faculty labs, enabling shared facilities, prototyping, and agile contracting. Located in North Carolina’s Research Triangle, partners tap a dense regional ecosystem while engaging through a statewide extension network and a mature co‑op program that deliver field deployment and workforce pipelines. Multiple pilot and demonstration facilities support scale‑up and validation toward pre‑commercial readiness. Research is supported by competitive funding from major federal agencies, including NSF, USDA, DOE, and DOD, and a dedicated technology transfer office with clear IP pathways helps accelerate commercialization.
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