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Fig. 2. STEM mass mapping of entire collagen fibrils.
(A)
dark field image of an
entire fibril formed
in vitro
by reconstitution of acid extracted calf skin collagen.
(E)
axial mass distribution (AMD) of fibril (A), obtained by measurements of STEM digi-
tal images. Panels
(B-D)
; dark field STEM montage of an entire collagen fibril
extracted from 14-d embryonic chick tendon.
(F)
; AMD of the entire collagen fibril
(B-D)
extracted from embryonic tendon. The tips show a linear AMD profile, typical of
tissue fibrils. Bar = 300 nm.
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