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(a) SAXS profiles for samples containing 2.7 wt% sodium alginate and 25 mM CaCl2 without HNTs (circles) and with 5.4 vol% HNTs (squares) in water. (b) ESEM picture for sample containing 2.7 wt% sodium alginate and 25 mM CaCl2 with 5.4 vol% HNTs.
