13.4.3 Magnetically Modified Microbial and Algae Cells. Microbial cells, either in free or immobilized form, can be used for the preconcentration or removal of metal ions, organic and inorganic xenobiotics or biologically active compounds. ... Sze KF, Lu YJ, Wong PK (1996) Removal and recovery of copper ion (Cu 2+) from electroplating effluent ...Web