This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1016/j.polymer.2016.01.012 in citations.
Small-angle neutron scattering studies of alginate as biomineralizing agent and scale initiator
Small-angle neutron scattering studies of alginate as biomineralizing agent and scale initiator
Alginate is an important part of the extracellular polymeric substances excreted by microorganisms giving rise to biofouling on reverse osmosis membranes in desalination plants for water treatment. We present a small-angle neutron scattering study on aggregation of alginate when exposed to an aqueou...
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Personal Name(s): | Dahdal, Y. N. |
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Pipich, V. / Rapaport, H. / Oren, Y. / Kasher, R. / Schwahn, D. (Corresponding author) | |
Contributing Institute: |
Neutronenstreuung; ICS-1 Neutronenstreuung; JCNS-1 JCNS-FRM-II; JCNS-FRM-II |
Published in: | Polymer, 85 (2016) S. 77 - 88 |
Imprint: |
Oxford
Elsevier Science
2016
|
DOI: |
10.1016/j.polymer.2016.01.012 |
Document Type: |
Journal Article |
Research Program: |
Jülich Centre for Neutron Research (JCNS) FRM II / MLZ Soft Matter, Health and Life Sciences |
Subject (ZB): | |
Publikationsportal JuSER |
Alginate is an important part of the extracellular polymeric substances excreted by microorganisms giving rise to biofouling on reverse osmosis membranes in desalination plants for water treatment. We present a small-angle neutron scattering study on aggregation of alginate when exposed to an aqueous salt solution simulating the reverse osmosis concentrate of a wastewater reclamation plant. We explored the behavior of alginate as dissolved molecule and as grafted to the surface of gold nanoparticles thereby simulating the condition of alginate attached at the surface of a membrane. The behavior of dissolved and grafted alginate was different when exposed to the simulation solution. The dissolved alginate aggregates to a gel like structure whereas the grafted alginate induces formation of 0.2 μm large particles. These particles form stable composites within few seconds with volume fraction of about half mineral and half gold nano-particles. |