Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
2006-1-30
pubmed:abstractText
Mineralised tissues, such as bone, consist of two material phases: collagen protein fibrils that form the structural models upon which the mineral, calcium hydroxyapatite, is subsequently deposited. Collagen and mineral are removed in a three-dimensional manner by osteoclasts during bone turnover in skeletal growth or repair, and matrix proteins are replaced by the synthetic activity of osteoblasts and then calcify. The resolution of atomic force microscopy and use of unmodified, fully calcified samples has enabled the imaging of the overall bone and dentine structure, including collagen and mineral phases. Mineral crystals, in the diameter size range of 225 nm up to 1.4 microm, were found in unmodified bone and dentine respectively. D-banded collagen is observed in dentine after acid treatment and in bone after osteoclast-mediated matrix resorption; axial periodicity values of approximately 67 and 69 nm are observed, respectively. These experimental approaches have enabled the structure of mineralised tissues to be examined in native samples and will facilitate the study of bone structure in important clinical disorders of the skeleton, such as osteoporosis.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1478-1581
pubmed:author
pubmed:issnType
Print
pubmed:volume
152
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
183-6
pubmed:dateRevised
2007-8-13
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Mineralised tissues as nanomaterials: analysis by atomic force microscopy.
pubmed:affiliation
Bone and Mineral Centre, Department of Medicine, University College London, London WC1E 6BT, UK.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't