Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl- β -Cyclodextrin
In the face of a growing human population and increased urbanization, the demand for pesticides will simply rise. Farmers must escalate yields on increasingly fewer farm acres. However, the risks of pesticides, whether real or perceived, may force changes in the way these chemicals are used. Scienti...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2013/825206 |
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| author | Sofia Benfeito Tiago Rodrigues Jorge Garrido Fernanda Borges E. Manuela Garrido |
| author_facet | Sofia Benfeito Tiago Rodrigues Jorge Garrido Fernanda Borges E. Manuela Garrido |
| author_sort | Sofia Benfeito |
| collection | DOAJ |
| description | In the face of a growing human population and increased urbanization, the demand for pesticides will simply rise. Farmers must escalate yields on increasingly fewer farm acres. However, the risks of pesticides, whether real or perceived, may force changes in the way these chemicals are used. Scientists are working toward pest control plans that are environmentally sound, effective, and profitable. In this context the development of new pesticide formulations which may improve application effectiveness, safety, handling, and storage can be pointed out as a solution. As a contribution to the area, the microencapsulation of the herbicide oxadiargyl (OXA) in (2-hydroxypropyl)-β-cyclodextrin (HP-β-CD) was performed. The study was conducted in different aqueous media (ultrapure water and in different pH buffer solutions). In all cases an increment of the oxadiargyl solubility as a function of the HP-β-CD concentration that has been related to the formation of an inclusion complex was verified. UV-Vis and NMR experiments allowed concluding that the stoichiometry of the OXA/HP-β-CD complex formed is 1 : 1. The gathered results can be regarded as an important step for its removal from industrial effluents and/or to increase the stabilizing action, encapsulation, and adsorption in water treatment plants. |
| format | Article |
| id | doaj-art-114bf8ea71f34b71a7449670ae30b925 |
| institution | Kabale University |
| issn | 1537-744X |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-114bf8ea71f34b71a7449670ae30b9252025-02-03T07:24:56ZengWileyThe Scientific World Journal1537-744X2013-01-01201310.1155/2013/825206825206Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl- β -CyclodextrinSofia Benfeito0Tiago Rodrigues1Jorge Garrido2Fernanda Borges3E. Manuela Garrido4Departamento de Engenharia Química, Instituto Superior de Engenharia do Porto (ISEP), Instituto Politécnico do Porto, 4200-072 Porto, PortugalDepartamento de Engenharia Química, Instituto Superior de Engenharia do Porto (ISEP), Instituto Politécnico do Porto, 4200-072 Porto, PortugalDepartamento de Engenharia Química, Instituto Superior de Engenharia do Porto (ISEP), Instituto Politécnico do Porto, 4200-072 Porto, PortugalCIQ/Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, 4169-007 Porto, PortugalDepartamento de Engenharia Química, Instituto Superior de Engenharia do Porto (ISEP), Instituto Politécnico do Porto, 4200-072 Porto, PortugalIn the face of a growing human population and increased urbanization, the demand for pesticides will simply rise. Farmers must escalate yields on increasingly fewer farm acres. However, the risks of pesticides, whether real or perceived, may force changes in the way these chemicals are used. Scientists are working toward pest control plans that are environmentally sound, effective, and profitable. In this context the development of new pesticide formulations which may improve application effectiveness, safety, handling, and storage can be pointed out as a solution. As a contribution to the area, the microencapsulation of the herbicide oxadiargyl (OXA) in (2-hydroxypropyl)-β-cyclodextrin (HP-β-CD) was performed. The study was conducted in different aqueous media (ultrapure water and in different pH buffer solutions). In all cases an increment of the oxadiargyl solubility as a function of the HP-β-CD concentration that has been related to the formation of an inclusion complex was verified. UV-Vis and NMR experiments allowed concluding that the stoichiometry of the OXA/HP-β-CD complex formed is 1 : 1. The gathered results can be regarded as an important step for its removal from industrial effluents and/or to increase the stabilizing action, encapsulation, and adsorption in water treatment plants.http://dx.doi.org/10.1155/2013/825206 |
| spellingShingle | Sofia Benfeito Tiago Rodrigues Jorge Garrido Fernanda Borges E. Manuela Garrido Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl- β -Cyclodextrin The Scientific World Journal |
| title | Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl-
β
-Cyclodextrin |
| title_full | Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl-
β
-Cyclodextrin |
| title_fullStr | Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl-
β
-Cyclodextrin |
| title_full_unstemmed | Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl-
β
-Cyclodextrin |
| title_short | Host-Guest Interaction between Herbicide Oxadiargyl and Hydroxypropyl-
β
-Cyclodextrin |
| title_sort | host guest interaction between herbicide oxadiargyl and hydroxypropyl β cyclodextrin |
| url | http://dx.doi.org/10.1155/2013/825206 |
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