Viscoelasticity of Holothurian Body Wall

DOI PDF 被引用文献2件
  • Tatsuo Motokawa
    The University of the Ryukyus Nakagusuku 1 Department of Biology , , Okinawa, 901-24 Japan

抄録

<jats:title>ABSTRACT</jats:title> <jats:p>Stress-relaxation tests and creep tests were performed on the bodywall dermis of two sea cucumbers, Actinopyga echinites (Jäger) and Holothuria leucospilota Brandt. These viscoelastic connective tissues had mechanical properties which agreed well with those of a four-element mechanical model composed of two Maxwell elements connected in parallel. The elastic stiffness of the dermis of Actinopyga was 1·7 MPa and that of Holothuria was 0·42 MPa. The viscosity of the dermis showed great variation of more than two orders. Chemical stimulation with artificial sea water containing 100 mm potassium increased the viscosity but not elasticity. The viscosity change is suggested to be caused by the change in weak (non-covalent) bonds between macromolecules which constitute the dermis.</jats:p>

収録刊行物

被引用文献 (2)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ