@article {46304,
	title = {Sustained release insect repellent microcapsules using modified cellulose nanofibers (mCNF) as pickering emulsifier},
	journal = {Colloids and Surfaces A-Physicochemical and Engineering Aspects},
	volume = {582},
	year = {2019},
	month = {DEC },
	pages = {Article Number:123883},
	type = {Article},
	abstract = {<p>We report here an approach to encapsulate N, N-diethyl-3-methylbenzamide (DEET), an insect repellent, through interfacial polycondensation using modified cellulose nanofiber (CNF) as pickering emulsifier. We found that stearic acid functionalized CNF (mCNF) can be used to form stable pickering emulsions (oil-in-oil and water-in-oil), and further encapsulate DEET using interfacial polycondensation with very high encapsulation efficiency of about 98\%. Another major advantage of this approach is that mCNF can act both as pickering emulsifier and also strengthen the barrier properties of microcapsules resulting in significant reduction in release rate of DEET. Interpretation of the release profiles using standard mathematical models proposed by Ritger-Peppas show a factor of three reduction in release rate constant for the microcapsules reinforced with mCNF.</p>
},
	keywords = {Cellulose nanofiber, Controlled release, Microcapsules, Nanocomposite, nanoparticle, Pickering emulsion},
	issn = {0927-7757},
	doi = {10.1016/j.colsurfa.2019.123883},
	author = {Kadam, Sandip L. and Yadav, Prashant and Bhutkar, Siddhant and Patil, Vishal D. and Shukla, Parshuram G. and Shanmuganathan, Kadhiravan}
}
@article {48796,
	title = {Double encapsulation of liquid active compounds using nanoclay reinforced polyurea microcapsules},
	journal = {Colloids and Surfaces A-Physicochemical and Engineering Aspects},
	volume = {679},
	year = {2023},
	month = {DEC},
	pages = {132547},
	type = {Article},
	abstract = {<p>
	In recent years, there has been growing interest in the double encapsulation of drugs, agrochemicals, and fragrances, aiming to achieve the highest encapsulation efficiency and preserve the activity of the encapsulated core over an extended duration. However, when active ingredients in liquid form are double encapsulated, preventing the rupture of primary microcapsules during the second encapsulation process and the leakage of the encapsulated core are major challenges. This report describes a method that utilizes polyurea and starch for successful double encapsulation of dimethyl phthalate (DMP), a liquid insect-repellent, as a model active component. We demonstrate that the incorporation of 3 wt\% montmorillonite (MMT) nanoclay strengthens the polyurea wall of the primary microcapsule and prevents its rupture during double encapsulation with starch. This process facilitates the uniform distribution of polyurea microcapsules within the starch matrix and significantly improves the mechanical integrity of the nanocomposite microcapsules embedded in starch. The double-encapsulated system developed in this study significantly reduces the release rate of encapsulated DMP.</p>
},
	keywords = {Controlled release, Double encapsulation, Microcapsules, Microencapsulation, Nanocomposites, Starch matrix},
	issn = {0927-7757},
	doi = {10.1016/j.colsurfa.2023.132547},
	author = {Aher, Yogeshwar P. and Torris, Arun and Adhikari, Benu and Shukla, Ravi and Shanmuganathan, Kadhiravan}
}
