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 P. Macaluso, Edward L. Yellin

Research output: Contribution to journalArticle

3 Citations (Scopus)

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.

Original languageEnglish (US)
JournalASAIO Transactions
Volume37
Issue number3
StatePublished - Jul 1991

Fingerprint

Pericardium
Fiber reinforced materials
Prosthetics
Collagen
Glutaral
Mitral Valve
Tensile stress
Canidae
Tensile strain
Formaldehyde
Electron Scanning Microscopy
Rupture
Loads (forces)
Scanning electron microscopy

ASJC Scopus subject areas

  • Biophysics

Cite this

Liao, K., Frater, R. W. M., Stevenson-Smith, W., Nikolic, S. D., Macaluso, F. P., & Yellin, E. L. (1991). Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves. ASAIO Transactions, 37(3).

Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves. / Liao, Kangxiong; Frater, Robert W M; Stevenson-Smith, William; Nikolic, Srdjan D.; Macaluso, Frank P.; Yellin, Edward L.

In: ASAIO Transactions, Vol. 37, No. 3, 07.1991.

Research output: Contribution to journalArticle

Liao, K, Frater, RWM, Stevenson-Smith, W, Nikolic, SD, Macaluso, FP & Yellin, EL 1991, 'Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves', ASAIO Transactions, vol. 37, no. 3.
Liao, Kangxiong ; Frater, Robert W M ; Stevenson-Smith, William ; Nikolic, Srdjan D. ; Macaluso, Frank P. ; Yellin, Edward L. / Two-dimensional mechanical and ultrastructural correlates of bovine pericardium for prosthetic valves. In: ASAIO Transactions. 1991 ; Vol. 37, No. 3.
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