Reference : Hybrid photosynthetic materials derived from microalgae Cyanidium caldarium encapsula...
Scientific journals : Article
Life sciences : Biotechnology
Physical, chemical, mathematical & earth Sciences : Chemistry
http://hdl.handle.net/2268/137483
Hybrid photosynthetic materials derived from microalgae Cyanidium caldarium encapsulated within silica gel
English
Rooke, J. C. [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Chimie > Chimie des Matériaux Inorganiques > >]
Léonard, Alexandre mailto [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Chimie > Chimie des Matériaux Inorganiques > >]
Meunier, C. F. [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Chimie > Chimie des Matériaux Inorganiques > >]
Sarmento, H. [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Biologie > Laboratory of Freshwater Ecology, URBO > >]
Descy, J.-P. [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Biologie > Laboratory of Freshwater Ecology, URBO > >]
Su, B.-L. [Facultés Universitaires Notre-Dame de la Paix - Namur - FUNDP > Chimie > Chimie des Matériaux Inorganiques > >]
2010
Journal of Colloid and Interface Science
344
2
348-352
Yes (verified by ORBi)
International
0021-9797
1095-7103
[en] Biomineralization ; Cellular interaction ; Cyanidium caldarium ; Encapsulation ; Photosynthesis ; Silica ; Immobilisation ; Micro-algae
[en] Cyanidium caldarium (Tilden) Geitler SAG 16.91 has been encapsulated within a porous silica host structure to target novel photosynthetic hybrid materials suitable for use in solar cells or CO2 fixation. C. caldarium cells are both thermophilic and acidophilic; on account of these tolerances the hybrid materials could be employed in more extreme heat conditions. TEM highlights that the external cell membrane can remain intact after encapsulation. The images reveal an alignment of silica gel around the external membrane of the cell, providing evidence that the cell wall acts as both a nucleation and polymerisation site for silica species and that the silica scaffold formed by the aggregation of colloidal particles, generates a porosity that can facilitate the transport of nutrients towards the cell. Epifluorescence microscopy and UV-visible spectroscopy have revealed the preservation of photosynthetic apparatus post-immobilisation. Productivity studies showed how the presence of silica nanoparticles within the matrix can adversely interact with the exterior cellular structures preventing the production of oxygen through photosynthesis. © 2009 Elsevier Inc. All rights reserved.
http://hdl.handle.net/2268/137483
10.1016/j.jcis.2009.12.053

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