Document Detail


Development of controlled release formulations of imidacloprid employing novel nano-ranged amphiphilic polymers.
MedLine Citation:
PMID:  22375594     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Amphiphilic copolymers, synthesized from poly (ethylene glycols) and various aliphatic diacids, which self assemble into nano-micellar aggregates in aqueous media, were used to develop controlled release (CR) formulations of imidacloprid [1-(6 chloro-3-pyridinyl methyl)-N- nitro imidazolidin-2- ylideneamine] using encapsulation technique. High solubilisation power and low critical micelle concentration (CMC) of these amphiphilic polymers may increase the efficacy of formulations. Formulations were characterised by Infrared (IR) spectroscopy, Dynamic Light Scattering (DLS) and Transmission Electron Microscope (TEM). Encapsulation efficiency, loading capacity and stability after accelerated storage test of the developed formulations were checked. The kinetics of imidacloprid release in water from the different formulations was studied. Release from the commercial formulation was faster than the CR formulations. The diffusion exponent (n value) of imidacloprid, in water ranged from 0.22 to 0.37 in the tested formulations. While the time taken for release of 50 % of imidacloprid ranged from 2.32 to 9.31 days for the CR formulations. The developed CR formulations can be used for efficient pest management in different crops.
Authors:
Totan Adak; Jitendra Kumar; N A Shakil; S Walia
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes     Volume:  47     ISSN:  1532-4109     ISO Abbreviation:  J Environ Sci Health B     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-03-01     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7607167     Medline TA:  J Environ Sci Health B     Country:  England    
Other Details:
Languages:  eng     Pagination:  217-25     Citation Subset:  IM    
Affiliation:
a Division of Agricultural Chemicals, Indian Agricultural Research Institute , New Delhi , India.
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