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 456441
Title Natural amphiphilic proteins as tri-block Janus particles: Self-sorting into thermo-responsive gels
Author(s) Vries, A. de; Nikiforidis, K.; Scholten, E.
Source Europhysics Letters 107 (2014)5. - ISSN 0295-5075 - 6 p.
Department(s) Physics and Physical Chemistry of Foods
Publication type Refereed Article in a scientific journal
Publication year 2014
Keyword(s) zein proteins - percolation - hydrogels - colloids
Abstract Design of particles for controlled assembly into complex 3D structure has been extensively investigated. However, their use in the preparation of such 3D structures has received less attention due to low availability. Here, we use a Janus-type particle in the form of a tri-block of natural origin, the protein zein, to create such 3D structures in the form of a thermo-responsive gel. Assembly behaviour of the tri-blocks can be initiated onto spherical hydrophobic surfaces, which leads to stacking of the tri-blocks into a space-spanning network. Rheological behaviour is dependent on the interplay between the hydrophobic interactions between the tri-blocks and the solvent quality, and can be used to alter the temperature at which the network collapses and the gel strength decreases by two orders of magnitude, representing a more fluid-like behaviour.
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