Fabrication of magnetic bio-Au nanoclusters by using SlaA-layer ghosts of Sulfolobus acidocaldarius as a template

	Nanotech 2011 Vol. 3 Nanotechnology 2011: Bio Sensors, Instruments, Medical, Environment and Energy Chapter 3: Bio Nano Materials
	Fabrication of magnetic bio-Au nanoclusters by using SlaA-layer ghosts of Sulfolobus acidocaldarius as a template
Authors:	S. Selenska-Pobell, T. Reitz, A. Geissler, T. Herrmannsdörfer, M. Merroun
Affilation:	Forschungszentrum Dresden Rossendorf, DE
Pages:	189 - 192
Keywords:	bio-Au, paramagnetic nanoparticles, S-layer
Abstract:	We demonstrate that the outermost proteinaceous surface layer SlaA of the thermo acidophilic archaeon Sulfolobus acidocaldarius is an excellent matrix for preparation of bio-Au nanoclusters. The archaeal bio-Au nanoparticles are significantly bigger and possess considerably different physical properties then those formed on some bacterial S-layers and studied earlier. To our knowledge, this is the first report on constructing of highly ordered Au nanoparticles on an archaeal S-layer. These bio-Au nano structures possess some advantageous properties, such as high stability to high temperatures, acidic and mechanical stress, in comparison to those formerly constructed on bacterial S-layers. Moreover, in contrast to Au as a bulk noble metal and to the bacterial bio-Au, the archaeal bio-Au nanoparticles possess unique magnetic properties.
ISBN:	978-1-4398-7138-6
Pages:	852
Hardcopy:	$199.95

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