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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.6b04574
|2 doi
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|a pubmed24n0894.xml
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|a (DE-627)NLM268458472
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|a (NLM)28135096
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Hughes, Erik A B
|e verfasserin
|4 aut
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|a Biologically Analogous Calcium Phosphate Tubes from a Chemical Garden
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 07.05.2018
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|a Date Revised 07.05.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Calcium phosphate (CaPO4) tubes with features comparable to mineralized biological microstructures, such as Haversian canals, were grown from a calcium gel/phosphate solution chemical garden system. A significant difference in gel mass in response to high and low solute phosphate equivalent environments existed within 30 min of solution layering upon gel (p = 0.0067), suggesting that the nature of advective movement between gel and solution is dependent on the solution concentration. The transport of calcium cations (Ca2+) and phosphate anions (PO43-) was quantified and changes in pH were monitored to explain the preferential formation of tubes within a PO43- concentration range of 0.5-1.25 M. Ingress from the anionic solution phase into the gel followed by the liberation of Ca2+ ions from the gel was found to be essential for acquiring self-assembled tubular CaPO4 structures. Tube analysis by scanning electron microscopy (SEM), X-ray diffraction (XRD), and micro X-ray florescence (μ-XRF) revealed hydroxyapatite (HA, Ca10(PO4)6(OH)2) and dicalcium phosphate dihydrate (DCPD, CaHPO4·2H2O) phases organized in a hierarchical manner. Notably, the tubule diameters ranged from 100 to 150 μm, an ideal size for the permeation of vasculature in biological hard tissue
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Williams, Richard L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cox, Sophie C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Grover, Liam M
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 33(2017), 8 vom: 28. Feb., Seite 2059-2067
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:33
|g year:2017
|g number:8
|g day:28
|g month:02
|g pages:2059-2067
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|u http://dx.doi.org/10.1021/acs.langmuir.6b04574
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