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Type: Artigo de periódico
Title: Observation of geometric structure of collagen molecules by atomic force microscopy
Author: Baranauskas, V
Vidal, BC
Parizotto, NA
Abstract: Atomic force microscopy was used to study the geometric structure of collagen fibrils and molecules of rat calcanean tendon tissues. The authors found that the diameter of the fibrils ranged from 124 to 170 nm, and their geometric form suggested a helical winding with spectral period from 59.4 to 61.7 nm, close to the band dimensions reported by electron microscopy. At high magnification, the surface of these bands revealed images that probably correspond to the almost crystalline array of collagen molecules, with the triple helix structure almost visible. The typical helix width is 1.43 nm, with main periods of 1.15 and 8.03 nm, very close to the dimensions reported by X-ray diffraction.
Subject: atomic force microscopy
collagen molecules
collagen fibrils
rat tendon
Country: EUA
Editor: Humana Press Inc
Citation: Applied Biochemistry And Biotechnology. Humana Press Inc, v. 69, n. 2, n. 91, n. 97, 1998.
Rights: fechado
Identifier DOI: 10.1007/BF02919391
Date Issue: 1998
Appears in Collections:Unicamp - Artigos e Outros Documentos

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