The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data

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https://doi.org/10.1088/0953-8984/19/41/415116
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The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data. / Pickup, D. M.; Ahmed, I.; Guerry, P. et al.
In: Journal of Physics: Condensed Matter, Vol. 19, No. 41, 415116, 01.10.2007.

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

Harvard

Pickup, DM, Ahmed, I, Guerry, P, Knowles, JC, Smith, ME & Newport, RJ 2007, 'The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data', Journal of Physics: Condensed Matter, vol. 19, no. 41, 415116. https://doi.org/10.1088/0953-8984/19/41/415116

APA

Pickup, D. M., Ahmed, I., Guerry, P., Knowles, J. C., Smith, M. E., & Newport, R. J. (2007). The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data. Journal of Physics: Condensed Matter, 19(41), Article 415116. https://doi.org/10.1088/0953-8984/19/41/415116

Vancouver

Pickup DM, Ahmed I, Guerry P, Knowles JC, Smith ME, Newport RJ. The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data. Journal of Physics: Condensed Matter. 2007 Oct 1;19(41):415116. doi: 10.1088/0953-8984/19/41/415116

Author

Pickup, D. M. ; Ahmed, I. ; Guerry, P. et al. / The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data. In: Journal of Physics: Condensed Matter. 2007 ; Vol. 19, No. 41.

Bibtex

@article{8eaa1c400e024796ad5a8fbf98f72f59,

title = "The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data",

abstract = "Neutron diffraction and P-31 nuclear magnetic resonance spectroscopy were used to probe the structure of phosphate glass biomaterials of general composition (CaO)(0.5-x) (Na2O)(x) (P2O5)(0.5) (x = 0, 0.1 and 0.5). The results suggest that all three glasses have structures based on chains of Q(2) phosphate groups. Clear structural differences are observed between the glasses containing Na2O and CaO. The P-O bonds to bridging and non-bridging oxygens are less well resolved in the neutron data from the samples containing CaO, suggesting a change in the nature of the bonding as the field strength of the cation increases Na+ -> Ca2(+). In the (CaO)(0.5)(P2O5)(0.5) glass most of the Ca2+ ions are present in isolated CaOx polyhedra whereas in the (Na2O)(0.5) (P2O5)(0.5) glass the NaOx polyhedra share edges leading to a Na-Na correlation. The results of the structural study are related to the properties of the (CaO)(0.4) (Na2O)(0.1) (P2O5)(0.5) biomaterial.",

author = "Pickup, {D. M.} and I. Ahmed and P. Guerry and Knowles, {J. C.} and Smith, {Mark E.} and Newport, {R. J.}",

year = "2007",

month = oct,

day = "1",

doi = "10.1088/0953-8984/19/41/415116",

language = "English",

volume = "19",

journal = "Journal of Physics: Condensed Matter",

issn = "0953-8984",

publisher = "IOP Publishing Ltd",

number = "41",

}

RIS

TY - JOUR

T1 - The structure of phosphate glass biomaterials from neutron diffraction and P-31 nuclear magnetic resonance data

AU - Pickup, D. M.

AU - Ahmed, I.

AU - Guerry, P.

AU - Knowles, J. C.

AU - Smith, Mark E.

AU - Newport, R. J.

PY - 2007/10/1

Y1 - 2007/10/1

N2 - Neutron diffraction and P-31 nuclear magnetic resonance spectroscopy were used to probe the structure of phosphate glass biomaterials of general composition (CaO)(0.5-x) (Na2O)(x) (P2O5)(0.5) (x = 0, 0.1 and 0.5). The results suggest that all three glasses have structures based on chains of Q(2) phosphate groups. Clear structural differences are observed between the glasses containing Na2O and CaO. The P-O bonds to bridging and non-bridging oxygens are less well resolved in the neutron data from the samples containing CaO, suggesting a change in the nature of the bonding as the field strength of the cation increases Na+ -> Ca2(+). In the (CaO)(0.5)(P2O5)(0.5) glass most of the Ca2+ ions are present in isolated CaOx polyhedra whereas in the (Na2O)(0.5) (P2O5)(0.5) glass the NaOx polyhedra share edges leading to a Na-Na correlation. The results of the structural study are related to the properties of the (CaO)(0.4) (Na2O)(0.1) (P2O5)(0.5) biomaterial.

AB - Neutron diffraction and P-31 nuclear magnetic resonance spectroscopy were used to probe the structure of phosphate glass biomaterials of general composition (CaO)(0.5-x) (Na2O)(x) (P2O5)(0.5) (x = 0, 0.1 and 0.5). The results suggest that all three glasses have structures based on chains of Q(2) phosphate groups. Clear structural differences are observed between the glasses containing Na2O and CaO. The P-O bonds to bridging and non-bridging oxygens are less well resolved in the neutron data from the samples containing CaO, suggesting a change in the nature of the bonding as the field strength of the cation increases Na+ -> Ca2(+). In the (CaO)(0.5)(P2O5)(0.5) glass most of the Ca2+ ions are present in isolated CaOx polyhedra whereas in the (Na2O)(0.5) (P2O5)(0.5) glass the NaOx polyhedra share edges leading to a Na-Na correlation. The results of the structural study are related to the properties of the (CaO)(0.4) (Na2O)(0.1) (P2O5)(0.5) biomaterial.

U2 - 10.1088/0953-8984/19/41/415116

DO - 10.1088/0953-8984/19/41/415116

M3 - Journal article

VL - 19

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 0953-8984

IS - 41

M1 - 415116

ER -

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