Nano-bioceramic production via mechano-chemical conversion (Ultrasonication)

Oktar, FN; Agathopoulos, S; Ozyegin, LS; Turner, IG; Gunduz, O; Demirkol, N; Brück, S; Ben-Nissan, B; Samur, R; Kayali, ES; Aktas, C

Nano-bioceramic production via mechano-chemical conversion (Ultrasonication)

Oktar, FN Agathopoulos, S Ozyegin, LS Turner, IG Gunduz, O Demirkol, N Brück, S Ben-Nissan, B Samur, R Kayali, ES Aktas, C

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Publication Type:: Journal Article
Citation:: Key Engineering Materials, 2013, 529-530 (1), pp. 609 - 614
Issue Date:: 2013-01-01

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Field	Value	Language
dc.contributor.author	Oktar, FN	en_US
dc.contributor.author	Agathopoulos, S	en_US
dc.contributor.author	Ozyegin, LS	en_US
dc.contributor.author	Turner, IG	en_US
dc.contributor.author	Gunduz, O	en_US
dc.contributor.author	Demirkol, N	en_US
dc.contributor.author	Brück, S	en_US
dc.contributor.author	Ben-Nissan, B	en_US
dc.contributor.author	Samur, R	en_US
dc.contributor.author	Kayali, ES	en_US
dc.contributor.author	Aktas, C	en_US
dc.date.issued	2013-01-01	en_US
dc.identifier.citation	Key Engineering Materials, 2013, 529-530 (1), pp. 609 - 614	en_US
dc.identifier.isbn	9783037855171	en_US
dc.identifier.issn	1013-9826	en_US
dc.identifier.uri	http://hdl.handle.net/10453/28040
dc.description.abstract	The production of nano-calcium phosphate powders, such as HA (hydroxyapatite), from synthetic chemicals can be expensive and time consuming. The skeleton or shells of sea creatures (e.g. sea urchins, shells, corals) could be an alternative source of materials to produce very fine and even nano-structured calcium phosphate biomaterial powders. Ηydrothermal conversion under very high pressures or methods such as hot-plating (chemical) or ultrasonication (mechano-chemical), have been proposed to transform naturally derived CaCO3, e.g. aragonite, into apatite based materials. The aim of the present work was to prepare inexpensive nano-sized HA and TCP bioceramics powders from a local sea snail shells as a possible raw material for HA/TCP bioceramics. Empty shells of a local sea snail (Nassarius hinia reticulatus) from Marmara Sea, Turkey were collected from a beach near Istanbul. The collected shells were ground to a particle size <75μm. Thermal analyses (DTA/TGA) were performed to determine the exact CaCO3 content and thermal behavior. The raw powder was suspended in an aqueous media which was placed in an ultrasonic bath. The temperature was set at 80°C for 15min. Then, an equivalent (to CaO content) amount of H3PO 4 was added drop by drop very gently into the solution. The reaction continued for 8h, following which the liquid component was evaporated off in an incubator at 100°C for 24h. The dried sediment was collected and heat treated at two different temperatures, 400 and 800°C. The morphology of the powders produced was examined using SEM. The crystalline phases were indentified using X-ray analysis. © (2013) Trans Tech Publications, Switzerland.	en_US
dc.relation.ispartof	Key Engineering Materials	en_US
dc.relation.isbasedon	10.4028/www.scientific.net/KEM.529-530.609	en_US
dc.subject.classification	Materials	en_US
dc.title	Nano-bioceramic production via mechano-chemical conversion (Ultrasonication)	en_US
dc.type	Journal Article
utslib.citation.volume	1	en_US
utslib.citation.volume	529-530	en_US
utslib.for	0912 Materials Engineering	en_US
utslib.for	09 Engineering	en_US
dc.location.activity	Fukuoka, Japan	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - CHT - Health Technologies
utslib.copyright.status	closed_access
pubs.issue	1	en_US
pubs.publication-status	Published	en_US
pubs.volume	529-530	en_US

Abstract:

The production of nano-calcium phosphate powders, such as HA (hydroxyapatite), from synthetic chemicals can be expensive and time consuming. The skeleton or shells of sea creatures (e.g. sea urchins, shells, corals) could be an alternative source of materials to produce very fine and even nano-structured calcium phosphate biomaterial powders. Ηydrothermal conversion under very high pressures or methods such as hot-plating (chemical) or ultrasonication (mechano-chemical), have been proposed to transform naturally derived CaCO3, e.g. aragonite, into apatite based materials. The aim of the present work was to prepare inexpensive nano-sized HA and TCP bioceramics powders from a local sea snail shells as a possible raw material for HA/TCP bioceramics. Empty shells of a local sea snail (Nassarius hinia reticulatus) from Marmara Sea, Turkey were collected from a beach near Istanbul. The collected shells were ground to a particle size <75μm. Thermal analyses (DTA/TGA) were performed to determine the exact CaCO3 content and thermal behavior. The raw powder was suspended in an aqueous media which was placed in an ultrasonic bath. The temperature was set at 80°C for 15min. Then, an equivalent (to CaO content) amount of H3PO 4 was added drop by drop very gently into the solution. The reaction continued for 8h, following which the liquid component was evaporated off in an incubator at 100°C for 24h. The dried sediment was collected and heat treated at two different temperatures, 400 and 800°C. The morphology of the powders produced was examined using SEM. The crystalline phases were indentified using X-ray analysis. © (2013) Trans Tech Publications, Switzerland.

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