Investigation of the nanofibrillar morphology in silk fibers by small angle X-ray scattering and atomic force microscopy.

Abstract:

:Small angle X-ray scattering (SAXS) and atomic force microscopy (AFM) measurements have been shown to be consistent with the presence of nanofibrils in the cocoon silk of Bombyx mori and the dragline silk of Nephila clavipes. The transverse dimensions and correlation lengths range from > 59 to 220 nm and in the axial direction from > 80 to 230 nm. Also, the two-dimensional Fourier transforms of the height profiles of AFM topographic images of interior surfaces of B. mori follow a power law approximately the same as that for the Porod region of the SAXS data. In this manner, the AFM can be used to help remove ambiguity about the scatterers responsible for SAXS patterns.

journal_name

Int J Biol Macromol

authors

Miller LD,Putthanarat S,Eby RK,Adams WW

doi

10.1016/s0141-8130(99)00024-0

keywords:

subject

Has Abstract

pub_date

1999-03-01 00:00:00

pages

159-65

issue

2-3

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(99)00024-0

journal_volume

24

pub_type

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