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Images of the ESFHM formed in three voltages of 60VDC (a), 80VDC (b), 100VDC (c) and 120VDC (c). In all the photographs, 2 mL of silk aqueous solution (20 mg/mL, Urea/LiBr, pH 6.55) was added to the cathode chamber and electrolyzing for 80 min.
