Toughness anisotropy in feather keratin

被引:14
作者
Bonser, RHC [1 ]
Saker, L [1 ]
Jeronimidis, G [1 ]
机构
[1] Univ Reading, Ctr Biomimet, Reading RG6 6AY, Berks, England
关键词
D O I
10.1023/B:JMSC.0000021474.75864.ff
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The presence of mechanical anisotropy in β-keratin composite was analyzed. Cutting tests on the samples of keratin were carried out. The molecular structures of α- and β-keratin were compared. Despite the differences in the molecular structures of the two types of keratins, the toughness of the two appeared to be quite similar. The presence of multi-directionality in feather keratin was identified qualitatively. Most keratin molecules were oriented predominantly axially.
引用
收藏
页码:2895 / 2896
页数:2
相关论文
共 6 条
[1]   The Young's modulus of ostrich claw keratin [J].
Bonser, RHC .
JOURNAL OF MATERIALS SCIENCE LETTERS, 2000, 19 (12) :1039-1040
[2]   Existence of various structural zones in keratinous tissues revealed by X-ray microdiffraction [J].
Busson, B ;
Engström, P ;
Doucet, J .
JOURNAL OF SYNCHROTRON RADIATION, 1999, 6 :1021-1030
[3]   Young's modulus varies with differential orientation of keratin in feathers [J].
Cameron, GJ ;
Wess, TJ ;
Bonser, RHC .
JOURNAL OF STRUCTURAL BIOLOGY, 2003, 143 (02) :118-123
[4]   MOLECULAR ORIENTATION OF SOME KERATINS [J].
EARLAND, C ;
STELL, JGP ;
BLAKEY, PR .
NATURE, 1962, 196 (4861) :1287-&
[5]   Ranking the fracture toughness of thin mammalian soft tissues using the scissors cutting test [J].
Pereira, BP ;
Lucas, PW ;
SweeHin, T .
JOURNAL OF BIOMECHANICS, 1997, 30 (01) :91-94
[6]  
VINCENT JFV, 1992, BIOMECHANICS MAT PRA, P193