Construction and Characterization of a Novel Sustained-Release Delivery System for Hydrophobic Pesticides Using Biodegradable Polydopamine-Based Microcapsules

• DOI: 10.1021/acs.jafc.8b00877
• Publication Date: 2018-05-30T20:01:07Z
• Authors: Aihua Zou; Ying Yang; Jiagao Cheng; Vasil M. Garamus; Na Li
• Keywords: Thermogravimetric analysis; Environmental Pollution

Microcapsule formulations have been highly desirable and widely developed for effective utilization of pesticides environmental pollution reduction. However, commercial traditional microcapsule λ-cyhalothrin (LC) were prepared by complicated synthesis procedures thereby specific organic solvents needed. In this work, LC was encapsulated into versatile, robust, biodegradable polydopamine (PDA) microcapsules self-polymerization dopamine. LC-loaded PDA characterized transmission electron microscopy (TEM), small-angle X-ray scattering (SAXS), thermogravimetric analysis measurements (TGA). uniform morphology with nanoscale, decent loading content (>50.0% w/w), good physicochemical stability sustained release properties. The bioassay against housefly (Musca domestica) showed that the bioactivity long-term efficiency superior to formulation. All these results demonstrated could be applied as a formulation fewer side effects higher delivery.