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In situ cell separation and immobilization of bacterial cells for biodesulfurization were developed by using superparamagnetic Fe 3 O 4 nanoparticles (NPs). The Fe 3 O 4 NPs were synthesized by coprecipitation followed by modification with ammonium oleate. The surface-modified NPs were monodispersed and the particle size was about 13nm with 50.8emu/g saturation magnetization...
Pseudomonas delafieldii was immobilized in magnetic polyvinyl alcohol (PVA) beads using a hydrophilic magnetic fluid, which was prepared by a co-precipitation method. The beads had distinct super-paramagnetic properties and were compared with immobilized cells in non-magnetic PVA beads. Their desulfurizing activity was increased slightly from 8.7 to 9 mmol sulfur kg−1 (dry cell) h−1. The main advantages...
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