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A simple method for constructing magnetic Escherichia coli
Magnetic force can serve as an ideal way to control the spatial behavior of microorganisms, because of its flexibility and penetrability. By incubation with the biocompatible compound, ammonium ferric citrate, as an iron source, we magnetized Escherichia coli, the most programmable chassis in synthetic biology. To enhance the magnetization efficiency, the ferritin protein, FtnA, from E. coli was cloned and overexpressed in strain BL21(DE3). The magnetization effect was observed within 30 mindoi:10.1101/010249 fatcat:iijcvkjzkjettfd7nquddxpsta