Controlled release of aldicarb from carboxymethyl cellulose microspheres: in vitro and field applications

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dc.contributor.authorKok, FN
dc.contributor.authorArica, MY
dc.contributor.authorGencer, O
dc.contributor.authorAbak, K
dc.contributor.authorHasirci, V
dc.date.accessioned2020-06-25T17:34:38Z
dc.date.available2020-06-25T17:34:38Z
dc.date.issued1999
dc.departmentKırıkkale Üniversitesi
dc.descriptionKok, Fatma Nese/0000-0002-5093-6013
dc.description.abstractAldicarb is a carbamate pesticide that is widely used throughout the world in the protection Of crops (eg cotton, nuts, potatoes, onion, tobacco, sugar beet and sugar cane). In Turkey, especially in the Cukurova region, it is used for the control of the cotton white fly (Bemisia tabaci) which attacks cotton plants cultivated in this region. Aldicarb contamination in surface and ground water is a serious problem in several countries, partly due to its high water solubility. It is also highly toxic to mammals. In order to overcome these problems, microspheres of aldicarb were prepared using carboxymethyl cellulose (CMC) as the biodegradable support material cross-linked with aluminium chloride. A strong hysteresis behaviour was observed upon drying and reswelling. Encapsulation efficiency was in the range 12-23% and aldicarb contents of 5.7-10.3 mg per 100mg of microspheres was achieved. In vitro release was distinctly Fickian, and Higuchi constants were very close to 0.5. Release in pots revealed that only one sample had a release capability for more than four weeks. In the cotton plot much longer durations of release (more than seven weeks) were observed while a commercial granular formulation released its content immediately. It was thus possible to construct a controlled pesticide release system that prolonged the bioavailability to about eight weeks. (C) 1999 Society of Chemical Industry.en_US
dc.identifier.citationclosedAccessen_US
dc.identifier.doi10.1002/(SICI)1096-9063(199912)55:12<1194
dc.identifier.endpage1202en_US
dc.identifier.issn0031-613X
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-0033430923
dc.identifier.scopusqualityN/A
dc.identifier.startpage1194en_US
dc.identifier.urihttps://doi.org/10.1002/(SICI)1096-9063(199912)55:12<1194
dc.identifier.urihttps://hdl.handle.net/20.500.12587/2811
dc.identifier.volume55en_US
dc.identifier.wosWOS:000084918700010
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherJohn Wiley & Sons Ltden_US
dc.relation.ispartofPesticide Science
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectaldicarben_US
dc.subjectcarboxymethyl celluloseen_US
dc.subjectmicrosphereen_US
dc.subjectcontrolled releaseen_US
dc.subjectbiodegradableen_US
dc.titleControlled release of aldicarb from carboxymethyl cellulose microspheres: in vitro and field applicationsen_US
dc.typeArticle

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