Fig. 4From: Melanin-embedded materials effectively remove hexavalent chromium (CrVI) from aqueous solutionEffect of drying method (a) and alginate content (b) on sorption efficiency of CrVI on IMB and CMB. (UD: undrying; LTD: low temperature drying; HTD: high temperature drying; FD: freezing drying). Three asterisks indicate significant difference (p < 0.001) between IMB and CMB by the Student’s t testBack to article page