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Extended conformations resulting from molecular combing in HA deposited on prehydrated mica, observed in tapping-mode atomic force microscopy (TMAFM) height images. Bar = 500 nm. Z range 1–2 nm. (A). Low molecular weight bacterial HA deposited from 7 μg/mL solution in 10 mM MgCl2. (B) Low molecular weight pig skin HA deposited from 2 μg/mL solution in 10 mM MgCl2.
