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Sticking particles ...
Sticking particles to solid surfaces using Moringa oleifera proteins as a glue
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- Nouhi, Shirin (author)
- Uppsala universitet,Materialfysik
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- Pascual, Marc (author)
- Uppsala universitet,Materialfysik
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- Hellsing, Maja S. (author)
- Uppsala universitet,Materialfysik
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- Kwaambwa, Habauka M. (author)
- Namibia University of Science and Technology,Namibia University of Science and Technology, Faculty of Health and Applied Sciences, Private Bag 13388, 13 Storch Street, Windhoek, Namibia
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- Skoda, Maximilian W.A. (author)
- STFC Rutherford Appleton Laboratory,Rutherford Appleton Laboratory, Harwell, Didcot OX11 0QX, United Kingdom
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- Höök, Fredrik, 1966 (author)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Applied Physics, Chalmers University of Technology, Gothenburg, Sweden
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- Rennie, Adrian R., 1957- (author)
- Uppsala universitet,Materialfysik
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(creator_code:org_t)
- Elsevier BV, 2018
- 2018
- English.
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In: Colloids and Surfaces B: Biointerfaces. - : Elsevier BV. - 0927-7765 .- 1873-4367. ; 168, s. 68-75
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Abstract
Subject headings
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- Experimental studies have been made to test the idea that seed proteins from Moringa oleifera which are novel, natural flocculating agents for many particles could be used to promote adhesion at planar interfaces and hence provide routes to useful nanostructures. The proteins bind irreversibly to silica interfaces. Surfaces that had been exposed to protein solutions and rinsed were then exposed to dispersions of sulfonated polystyrene latex. Atomic force microscopy was used to count particle density and identified that the sticking probability was close to 1. Measurements with a quartz crystal microbalance confirmed the adhesion and indicated that repeated exposures to solutions of Moringa seed protein and particles increased the coverage. Neutron reflectivity and scattering experiments indicate that particles bind as a monolayer. The various results show that the 2S albumin seed protein can be used to fix particles at interfaces and suggest routes for future developments in making active filters or improved interfaces for photonic devices.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Biologi -- Biofysik (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Biophysics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- Quartz
- Surface scattering
- Latex particles
- Moringa oleifera
- Adhesion
- Physics with spec. in Atomic, Molecular and Condensed Matter Physics
Publication and Content Type
- art (subject category)
- ref (subject category)
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