Fabrication of colloidosomes at low temperature for the encapsulation of thermally sensitive compounds

Autor: Alexander F. Routh, Samia Laïb
Přispěvatelé: Department of Chemical Engineering and BP Institute, University of Cambridge [UK] (CAM), Laïb, Samia
Rok vydání: 2008
Předmět:
Sodium Acetate
Sintering
02 engineering and technology
01 natural sciences
MESH: Plant Oils
Colloid and Surface Chemistry
Pulmonary surfactant
Sunflower Oil
chemistry.chemical_classification
MESH: Sodium Acetate
MESH: Surface-Active Agents
Temperature
MESH: Polystyrenes
Polymer
MESH: Sodium Hydroxide
021001 nanoscience & nanotechnology
MESH: Temperature
Surfaces
Coatings and Films

Electronic
Optical and Magnetic Materials

MESH: Acrylates
Acrylates
MESH: Colloids
0210 nano-technology
Glass transition
MESH: Ethanol
Materials science
Fabrication
MESH: Microscopy
Electron
Scanning

010402 general chemistry
Phase Transition
Biomaterials
Surface-Active Agents
Oil phase
Alkanes
MESH: Water
Plant Oils
Sodium Hydroxide
MESH: Particle Size
Colloids
Particle Size
[SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials
Ethanol
Aqueous two-phase system
Water
0104 chemical sciences
[SDV.IB.BIO] Life Sciences [q-bio]/Bioengineering/Biomaterials
MESH: Alkanes
Chemical engineering
chemistry
Colloidal particle
Microscopy
Electron
Scanning

Polystyrenes
MESH: Phase Transition
Zdroj: Journal of Colloid and Interface Science
Journal of Colloid and Interface Science, Elsevier, 2008, 317 (1), pp.121-9. ⟨10.1016/j.jcis.2007.09.019⟩
ISSN: 0021-9797
1095-7103
DOI: 10.1016/j.jcis.2007.09.019
Popis: International audience; A method using safe and mild conditions to prepare water-core colloidosomes of a few micrometers in size is examined. Using poly(styrene-co-butylacrylate) colloidal particles of 180 nm in size, with a low-temperature glass transition of 30 or 42 degrees C, the self-assembly into micrometer-sized water-core polymer shell particles is demonstrated. The effect of oil phase type, surfactant and cosolvent, sintering time, and the method of transfer into an aqueous phase are all examined. The work demonstrates the production of water-core rigid-shell colloidosomes at low temperatures, between 35 and 65 degrees C.
Databáze: OpenAIRE