Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 431834
Title Microfluidic preparation and self diffusion PFG-NMR analysis of monodisperse water-in-oil-in-water double emulsions
Author(s) Hughes, E.; Maan, A.A.; Acquistapace, S.; Burbidge, J.A.; Johns, M.L.; Gunes, D.Z.; Clausen, P.; Syrbe, A.; Hugo, J.; Schroën, C.G.P.H.
Source Journal of Colloid and Interface Science 389 (2013)1. - ISSN 0021-9797 - p. 147 - 156.
Department(s) Food Process Engineering
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) nuclear-magnetic-resonance - restricted diffusion - multiple emulsions - w/o/w emulsions - systems - field - echo - exchange - sizes - tool
Abstract Monodisperse water-in-oil-in-water (WOW) double emulsions have been prepared using microfluidic glass devices designed and built primarily from off the shelf components. The systems were easy to assemble and use. They were capable of producing double emulsions with an outer droplet size from 100 to 40 µm. Depending on how the devices were operated, double emulsions containing either single or multiple water droplets could be produced. Pulsed-field gradient self-diffusion NMR experiments have been performed on the monodisperse water-in-oil-in-water double emulsions to obtain information on the inner water droplet diameter and the distribution of the water in the different phases of the double emulsion. This has been achieved by applying regularization methods to the self-diffusion data. Using these methods the stability of the double emulsions to osmotic pressure imbalance has been followed by observing the change in the size of the inner water droplets over time.
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