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(A) Vibrating sample magnetometer (VSM) analysis of HNTs-M-chitosan (1%) and HNTs-M-chitosan (1%)-GTA-Laccase (i) HNTs-M-chitosan (1%) without magnet and (ii) HNTs-M-chitosan (1%) with magnet; and (B) zeta potential analysis of A- HNTs, B- HNTs-M, C- HNTs-M-chitosan (1%) and D- HNTs-M-chitosan (1%)-GTA-Laccase in the water solution at temperature of 25 °C.
