School of Engineering and Advanced Technology, Massey University, Palmerston North, New Zealand.
J Agric Food Chem. 2010 May 12;58(9):5286-91. doi: 10.1021/jf100436c.
SAXS has been applied to structural determination in leather. The SAXS beamline at the Australian Synchrotron provides 6 orders of magnitude dynamic range, enabling a rich source of structural information from scattering patterns of leather sections. SAXS patterns were recorded for q from 0.004 to 0.223 A(-1). Collagen d spacing varied across ovine leather sections from 63.8 nm in parts of the corium up to 64.6 nm in parts of the grain. The intensity of the collagen peak at q = 0.06 A(-1) varied by 1 order of magnitude across ovine leather sections with the high-intensity region in the corium and the low intensity in the grain. The degree of fiber orientation and the dispersion of the orientation has been quantified in leather. It is shown how the technique provides a wealth of useful information that may be used to characterize and compare leathers, skin, and connective tissue.
小角散射（SAXS）已被应用于皮革的结构测定。澳大利亚同步加速器的 SAXS 光束线提供了 6 个数量级的动态范围，使皮革切片的散射图谱能够提供丰富的结构信息来源。记录了 q 值从 0.004 到 0.223 A(-1)的 SAXS 图谱。在绵羊皮的不同部位，胶原 d 间距从真皮部分的 63.8nm 变化到粒面部分的 64.6nm。在 q = 0.06 A(-1)处胶原峰的强度在绵羊皮的不同部位相差 1 个数量级，真皮部分的强度较高，粒面部分的强度较低。纤维取向的程度和取向的分散度在皮革中已经被量化。本文展示了该技术如何提供大量有用的信息，可用于表征和比较皮革、皮肤和结缔组织。
