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Storage and release of solutes and microalgae from water-in-oil emulsions stabilized by silica nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
35202 45081 2010 6 PDF Available
Title
Storage and release of solutes and microalgae from water-in-oil emulsions stabilized by silica nanoparticles
Abstract

Water-in-oil (W/O) emulsions using crop oils and stabilized by surface modified silica nanoparticles and polymeric surfactants appear to be a promising approach for storing and delivering microorganisms to aqueous environments. In these systems cells are contained within the internal phase of the emulsion. We examined two types of silica nanoparticles for stabilizing Chlorella vulgaris in W/O emulsions and release kinetics upon delivery to water. C. vulgaris was selected because of its potential for nutritional and industrial applications. We also examined the effects of silica nanoparticles on the release of a model solute NaCl. Surface modification of the nanoparticles and concentration of nanoparticles in the continuous phase had significant effects on the release of NaCl while only surface modification had an effect on the release of cells. Increasing the hydrophobicity of the nanoparticles significantly reduced the level of cell release and rate of solute release suggesting emulsion properties could be tailored to achieve the controlled release of cells and solute upon delivery.

Keywords
Fumed silica; Hydrophobic silica nanoparticles; Microalgae; Water-in-oil emulsions
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Storage and release of solutes and microalgae from water-in-oil emulsions stabilized by silica nanoparticles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 45, Issue 1, January 2010, Pages 1–6
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us