Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves

Kangxiong Liao; Robert W.M. Frater; William Stevenson-Smith; Srdjan D. Nikolic; Frank Macaluso; Edward L. Yellin

Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves

Kangxiong Liao, Robert W.M. Frater, William Stevenson-Smith, Srdjan D. Nikolic, Frank Macaluso, Edward L. Yellin

Cell Biology

Research output: Contribution to journal › Conference article › peer-review

3 Scopus citations

Abstract

Scanning electron microscopy of bovine pericardium (BP) shows anisotropic collagen fiber orientation (CFO). We studied the effect of CFO on the breaking strength of longitudinal (L) and transverse (T) strips cut from six pieces of fresh (Fr), glutaraldehyde (Glu)-, or formaldehyde (For)-fixed BP loaded at constant rate until rupture. Maximum tensile stress (St_max) and strain (Sn_max) were measured. The St_max of L strips were larger than T ones in all groups, and Sn_max was the same. Similar results were also observed in 10 pieces of Glu fixed normal canine mitral valves (MV). Maximum tensile stress is obtained when the load is parallel to CFO in both canine MV and BP.

Original language	English (US)
Pages (from-to)	M349-M351
Journal	ASAIO Transactions
Volume	37
Issue number	3
State	Published - Jul 1991

ASJC Scopus subject areas

Biophysics

Cite this

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title = "Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves",

abstract = "Scanning electron microscopy of bovine pericardium (BP) shows anisotropic collagen fiber orientation (CFO). We studied the effect of CFO on the breaking strength of longitudinal (L) and transverse (T) strips cut from six pieces of fresh (Fr), glutaraldehyde (Glu)-, or formaldehyde (For)-fixed BP loaded at constant rate until rupture. Maximum tensile stress (Stmax) and strain (Snmax) were measured. The Stmax of L strips were larger than T ones in all groups, and Snmax was the same. Similar results were also observed in 10 pieces of Glu fixed normal canine mitral valves (MV). Maximum tensile stress is obtained when the load is parallel to CFO in both canine MV and BP.",

author = "Kangxiong Liao and Frater, {Robert W.M.} and William Stevenson-Smith and Nikolic, {Srdjan D.} and Frank Macaluso and Yellin, {Edward L.}",

year = "1991",

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language = "English (US)",

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T1 - Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves

AU - Liao, Kangxiong

AU - Frater, Robert W.M.

AU - Stevenson-Smith, William

AU - Nikolic, Srdjan D.

AU - Macaluso, Frank

AU - Yellin, Edward L.

PY - 1991/7

Y1 - 1991/7

N2 - Scanning electron microscopy of bovine pericardium (BP) shows anisotropic collagen fiber orientation (CFO). We studied the effect of CFO on the breaking strength of longitudinal (L) and transverse (T) strips cut from six pieces of fresh (Fr), glutaraldehyde (Glu)-, or formaldehyde (For)-fixed BP loaded at constant rate until rupture. Maximum tensile stress (Stmax) and strain (Snmax) were measured. The Stmax of L strips were larger than T ones in all groups, and Snmax was the same. Similar results were also observed in 10 pieces of Glu fixed normal canine mitral valves (MV). Maximum tensile stress is obtained when the load is parallel to CFO in both canine MV and BP.

AB - Scanning electron microscopy of bovine pericardium (BP) shows anisotropic collagen fiber orientation (CFO). We studied the effect of CFO on the breaking strength of longitudinal (L) and transverse (T) strips cut from six pieces of fresh (Fr), glutaraldehyde (Glu)-, or formaldehyde (For)-fixed BP loaded at constant rate until rupture. Maximum tensile stress (Stmax) and strain (Snmax) were measured. The Stmax of L strips were larger than T ones in all groups, and Snmax was the same. Similar results were also observed in 10 pieces of Glu fixed normal canine mitral valves (MV). Maximum tensile stress is obtained when the load is parallel to CFO in both canine MV and BP.

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M3 - Conference article

C2 - 1751181

AN - SCOPUS:0026192566

SN - 0889-7190

VL - 37

SP - M349-M351

JO - ASAIO Transactions

JF - ASAIO Transactions

IS - 3

ER -

Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves

Abstract

ASJC Scopus subject areas

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