SEM image of collagen which is finely striated with a repeat spacing of 20 nm. This may be the first time this kid of structure has been observed this way by SEM because previous attempted used much thicker layers of gold, thereby covering up the detail that is now being resolved.
Coating Device: Osmium Plasam Coater
Coating Material: Osmium
Coating Thickness: Not available
Accelerating Voltage: 5 kV
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