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Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass. / Pickup, D. M.; Valappil, S. P.; Moss, R. M. et al.
In: Journal of Materials Science: Materials in Medicine, Vol. 44, No. 7, 01.04.2009, p. 1858-1867.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Pickup, DM, Valappil, SP, Moss, RM, Twyman, HL, Guerry, P, Smith, ME, Wilson, M, Knowles, JC & Newport, RJ 2009, 'Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass', Journal of Materials Science: Materials in Medicine, vol. 44, no. 7, pp. 1858-1867. https://doi.org/10.1007/s10853-008-3237-2

APA

Pickup, D. M., Valappil, S. P., Moss, R. M., Twyman, H. L., Guerry, P., Smith, M. E., Wilson, M., Knowles, J. C., & Newport, R. J. (2009). Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass. Journal of Materials Science: Materials in Medicine, 44(7), 1858-1867. https://doi.org/10.1007/s10853-008-3237-2

Vancouver

Pickup DM, Valappil SP, Moss RM, Twyman HL, Guerry P, Smith ME et al. Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass. Journal of Materials Science: Materials in Medicine. 2009 Apr 1;44(7):1858-1867. doi: 10.1007/s10853-008-3237-2

Author

Pickup, D. M. ; Valappil, S. P. ; Moss, R. M. et al. / Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass. In: Journal of Materials Science: Materials in Medicine. 2009 ; Vol. 44, No. 7. pp. 1858-1867.

Bibtex

@article{fb613ffb1182466da8023ac08449e157,
title = "Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass",
abstract = "A sol-gel preparation of Ga-doped phosphate-based glass with potential application in antimicrobial devices has been developed. Samples of composition (CaO)(0.30)(Na2O)(0.20-x) (Ga2O3) (x) (P2O5)(0.50) where x = 0 and 0.03 were prepared, and the structure and properties of the gallium-doped sample compared with those of the sample containing no gallium. Analysis of the P-31 MAS NMR data demonstrated that addition of gallium to the sol-gel reaction increases the connectivity of the phosphate network at the expense of hydroxyl groups. This premise is supported by the results of the elemental analysis, which showed that the gallium-free sample contains significantly more hydrogen and by FTIR spectroscopy, which revealed a higher concentration of -OH groups in that sample. Ga K-edge extended X-ray absorption fine structure and X-ray absorption near-edge structure data revealed that the gallium ions are coordinated by six oxygen atoms. In agreement with the X-ray absorption data, the high-energy XRD results also suggest that the Ga3? ions are octahedrally coordinated with respect to oxygen. Antimicrobial studies demonstrated that the sample containing Ga3+ ions had significant activity against Staphylococcus aureus compared to the control.",
keywords = "X-RAY-ABSORPTION, P-31 MAS-NMR, FINE-STRUCTURE, STREPTOCOCCUS-SANGUIS, IRON-METABOLISM, GALLIUM, DIFFRACTION, TRANSITION, BIOFILMS, CRYSTAL",
author = "Pickup, {D. M.} and Valappil, {S. P.} and Moss, {R. M.} and Twyman, {H. L.} and Paul Guerry and Smith, {Mark E.} and M. Wilson and Knowles, {J. C.} and Newport, {R. J.}",
year = "2009",
month = apr,
day = "1",
doi = "10.1007/s10853-008-3237-2",
language = "English",
volume = "44",
pages = "1858--1867",
journal = "Journal of Materials Science: Materials in Medicine",
issn = "1573-4838",
publisher = "Kluwer Academic Publishers",
number = "7",

}

RIS

TY - JOUR

T1 - Preparation, structural characterisation and antibacterial properties of Ga-doped sol-gel phosphate-based glass

AU - Pickup, D. M.

AU - Valappil, S. P.

AU - Moss, R. M.

AU - Twyman, H. L.

AU - Guerry, Paul

AU - Smith, Mark E.

AU - Wilson, M.

AU - Knowles, J. C.

AU - Newport, R. J.

PY - 2009/4/1

Y1 - 2009/4/1

N2 - A sol-gel preparation of Ga-doped phosphate-based glass with potential application in antimicrobial devices has been developed. Samples of composition (CaO)(0.30)(Na2O)(0.20-x) (Ga2O3) (x) (P2O5)(0.50) where x = 0 and 0.03 were prepared, and the structure and properties of the gallium-doped sample compared with those of the sample containing no gallium. Analysis of the P-31 MAS NMR data demonstrated that addition of gallium to the sol-gel reaction increases the connectivity of the phosphate network at the expense of hydroxyl groups. This premise is supported by the results of the elemental analysis, which showed that the gallium-free sample contains significantly more hydrogen and by FTIR spectroscopy, which revealed a higher concentration of -OH groups in that sample. Ga K-edge extended X-ray absorption fine structure and X-ray absorption near-edge structure data revealed that the gallium ions are coordinated by six oxygen atoms. In agreement with the X-ray absorption data, the high-energy XRD results also suggest that the Ga3? ions are octahedrally coordinated with respect to oxygen. Antimicrobial studies demonstrated that the sample containing Ga3+ ions had significant activity against Staphylococcus aureus compared to the control.

AB - A sol-gel preparation of Ga-doped phosphate-based glass with potential application in antimicrobial devices has been developed. Samples of composition (CaO)(0.30)(Na2O)(0.20-x) (Ga2O3) (x) (P2O5)(0.50) where x = 0 and 0.03 were prepared, and the structure and properties of the gallium-doped sample compared with those of the sample containing no gallium. Analysis of the P-31 MAS NMR data demonstrated that addition of gallium to the sol-gel reaction increases the connectivity of the phosphate network at the expense of hydroxyl groups. This premise is supported by the results of the elemental analysis, which showed that the gallium-free sample contains significantly more hydrogen and by FTIR spectroscopy, which revealed a higher concentration of -OH groups in that sample. Ga K-edge extended X-ray absorption fine structure and X-ray absorption near-edge structure data revealed that the gallium ions are coordinated by six oxygen atoms. In agreement with the X-ray absorption data, the high-energy XRD results also suggest that the Ga3? ions are octahedrally coordinated with respect to oxygen. Antimicrobial studies demonstrated that the sample containing Ga3+ ions had significant activity against Staphylococcus aureus compared to the control.

KW - X-RAY-ABSORPTION

KW - P-31 MAS-NMR

KW - FINE-STRUCTURE

KW - STREPTOCOCCUS-SANGUIS

KW - IRON-METABOLISM

KW - GALLIUM

KW - DIFFRACTION

KW - TRANSITION

KW - BIOFILMS

KW - CRYSTAL

U2 - 10.1007/s10853-008-3237-2

DO - 10.1007/s10853-008-3237-2

M3 - Journal article

VL - 44

SP - 1858

EP - 1867

JO - Journal of Materials Science: Materials in Medicine

JF - Journal of Materials Science: Materials in Medicine

SN - 1573-4838

IS - 7

ER -