TEM analysis of apatite surface layers observed on zinc based glass polyalkenoate cements

D. Boyd; M. R. Towler; A. W. Wren; O. M. Clarkin; D. A. Tanner

doi:10.1007/s10853-007-2362-7

TEM analysis of apatite surface layers observed on zinc based glass polyalkenoate cements

D. Boyd, M. R. Towler, A. W. Wren, O. M. Clarkin, D. A. Tanner

School of Engineering

University of Limerick

Research output: Contribution to journal › Article › peer-review

Abstract

The amorphous nature and composition of the surface apatite layers observed on glass polyalkenoate cements based on zinc silicate glasses (Zn-GPCs) after immersion in simulated body fluid (SBF) have been analyzed by the transmission electron microscopy (TEM). TEM was conducted using a JEOL JEM-2011 electron microscope operated at an accelerating voltage of 200 kV. The composition elements of the surface layer indicated the presence of calcium, phosphorous, zinc, and strontium within the amorphous structure. This composition, in particular the inclusion of Zn in the structure, indicates the lack of crystallinity associated with the formation of the apatite layers observed on Zn-GPCs after immersion in SBF. Zinc based GPCs release clinically beneficial amounts of Zn²⁺ from the mantle of set cements for prolonged periods of time to inhibit bacterial colonization of the implant.

Original language	English
Pages (from-to)	1170-1173
Number of pages	4
Journal	Journal of Materials Science
Volume	43
Issue number	3
DOIs	https://doi.org/10.1007/s10853-007-2362-7
Publication status	Published - Feb 2008

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title = "TEM analysis of apatite surface layers observed on zinc based glass polyalkenoate cements",

abstract = "The amorphous nature and composition of the surface apatite layers observed on glass polyalkenoate cements based on zinc silicate glasses (Zn-GPCs) after immersion in simulated body fluid (SBF) have been analyzed by the transmission electron microscopy (TEM). TEM was conducted using a JEOL JEM-2011 electron microscope operated at an accelerating voltage of 200 kV. The composition elements of the surface layer indicated the presence of calcium, phosphorous, zinc, and strontium within the amorphous structure. This composition, in particular the inclusion of Zn in the structure, indicates the lack of crystallinity associated with the formation of the apatite layers observed on Zn-GPCs after immersion in SBF. Zinc based GPCs release clinically beneficial amounts of Zn2+ from the mantle of set cements for prolonged periods of time to inhibit bacterial colonization of the implant.",

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T1 - TEM analysis of apatite surface layers observed on zinc based glass polyalkenoate cements

AU - Boyd, D.

AU - Towler, M. R.

AU - Wren, A. W.

AU - Clarkin, O. M.

AU - Tanner, D. A.

PY - 2008/2

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N2 - The amorphous nature and composition of the surface apatite layers observed on glass polyalkenoate cements based on zinc silicate glasses (Zn-GPCs) after immersion in simulated body fluid (SBF) have been analyzed by the transmission electron microscopy (TEM). TEM was conducted using a JEOL JEM-2011 electron microscope operated at an accelerating voltage of 200 kV. The composition elements of the surface layer indicated the presence of calcium, phosphorous, zinc, and strontium within the amorphous structure. This composition, in particular the inclusion of Zn in the structure, indicates the lack of crystallinity associated with the formation of the apatite layers observed on Zn-GPCs after immersion in SBF. Zinc based GPCs release clinically beneficial amounts of Zn2+ from the mantle of set cements for prolonged periods of time to inhibit bacterial colonization of the implant.

AB - The amorphous nature and composition of the surface apatite layers observed on glass polyalkenoate cements based on zinc silicate glasses (Zn-GPCs) after immersion in simulated body fluid (SBF) have been analyzed by the transmission electron microscopy (TEM). TEM was conducted using a JEOL JEM-2011 electron microscope operated at an accelerating voltage of 200 kV. The composition elements of the surface layer indicated the presence of calcium, phosphorous, zinc, and strontium within the amorphous structure. This composition, in particular the inclusion of Zn in the structure, indicates the lack of crystallinity associated with the formation of the apatite layers observed on Zn-GPCs after immersion in SBF. Zinc based GPCs release clinically beneficial amounts of Zn2+ from the mantle of set cements for prolonged periods of time to inhibit bacterial colonization of the implant.

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TEM analysis of apatite surface layers observed on zinc based glass polyalkenoate cements

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