Bulk elastic properties of chicken embryos during somitogenesis.
We present measurements of the bulk Young's moduli of early chick embryos at Hamburger-Hamilton stage 10. Using a micropipette probe with a force constant k approximately 0.025 N/m, we applied a known force in the plane of the embryo in the anterior-posterior direction and imaged the resulting tissu...
| Published in: | BioMedical Engineering OnLine Vol. 9; pp. 19 - 20 |
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| Main Authors: | , , , , , |
| Format: | research Journal Article |
| Published: |
BioMed Central
2010
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| Online Access: | View this record in EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=105195157&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 105195157 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 1475925X 1CGX jtl: BioMedical Engineering OnLine issn: 1475925X maglogo: N pubinfo: dt: 2010 vid: 9 pid: 24147 pub: BioMed Central artinfo: ui: 105195157 NLM20353597 2010648933 10.1186/1475-925X-9-19 NLM20353597 PMC3212891 105195157 ppf: 19 ppct: 1 formats: tig: atl: Bulk elastic properties of chicken embryos during somitogenesis. aug: au: Agero U Glazier JA Hosek M Agero, Ubirajara Glazier, James A Hosek, Michael affil: The Biocomplexity Institute and Department of Physics, Swain Hall West 157, 727 E, 3rd Street, Bloomington, IN 47405-7105, USA sug: subj: Embryo Physiology Fetal Development Physiology Models, Biological Animal Studies Computer Simulation Elasticity Physiology Poultry Stress, Mechanical ab: We present measurements of the bulk Young's moduli of early chick embryos at Hamburger-Hamilton stage 10. Using a micropipette probe with a force constant k approximately 0.025 N/m, we applied a known force in the plane of the embryo in the anterior-posterior direction and imaged the resulting tissue displacements. We used a two-dimensional finite-element simulation method to model the embryo as four concentric elliptical elastic regions with dimensions matching the embryo's morphology. By correlating the measured tissue displacements to the displacements calculated from the in-plane force and the model, we obtained the approximate short time linear-elastic Young's moduli: 2.4 +/- 0.1 kPa for the midline structures (notocord, neural tube, and somites), 1.3 +/- 0.1 kPa for the intermediate nearly acellular region between the somites and area pellucida, 2.1 +/- 0.1 kPa for the area pellucida, and 11.9 +/- 0.8 kPa for the area opaca. pubtype: Academic Journal doctype: research Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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