Development and Evaluation of a Controlled Release System of TBH Herbicide Using Alginate Microparticles
| Autor: | Luciana Sgarbi Rossino, Sidney Macias Dourado Júnior, Eloiza da Silva Nunes, Daniela Macedo Faria, Renata Pereira Marques, João Pedro Lopes do Nascimento, Jeferson Aparecido Moreto |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Calcium alginate Carrier system 0211 other engineering and technologies Nanotechnology 02 engineering and technology Biodegradable Polymer chemistry.chemical_compound Tebuthiuron Controlled release General Materials Science Leaching (agriculture) Microencapsulation Materials of engineering and construction. Mechanics of materials 021110 strategic defence & security studies Aqueous solution Mechanical Engineering food and beverages 021001 nanoscience & nanotechnology Condensed Matter Physics Biodegradable polymer Weed control Chemical engineering chemistry Mechanics of Materials TA401-492 Particle size 0210 nano-technology |
| Zdroj: | Materials Research, Volume: 20, Issue: 1, Pages: 225-235, Published: 22 DEC 2016 Materials Research, Vol 20, Iss 1, Pp 225-235 (2016) Materials Research v.20 n.1 2017 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
| Popis: | The development of controlled delivery system formulations has received increasing interest in the agriculture area. Tebuthiuron (TBH) is the most commonly used herbicide for weed control in sugar cane and cotton crops. The TBH and some of its metabolites are detected in surface water by leaching process, evidencing contamination and the need for an efficient process to decrease pesticide residues. The development of a controlled system release appears as a good solution. The present investigation aimed to study the development and evaluation of alginate microparticles as a delivery system for the TBH. The calcium alginate microparticles were prepared from the crosslinking of sodium alginate by Ca++ containing varied amounts of TBH supplied in CaCl2 aqueous solution. The particle size and morphological analysis of microparticles were determined by optical microscopy (OM) and by field emission gun scanning electron microscopy (FEG-SEM). The encapsulation efficiency and release of TBH studies was accessed by UV-vis spectroscopy. The results show that the polymeric microparticles containing TBH can be obtained successfully through a simple method and is suitable as a controlled release carrier system for herbicides and can be effective for controlling weeds. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|