Intracellular biosynthesis of superparamagnetic 2-lines ferri-hydrite nanoparticles using Euglena gracilis microalgae

The intracellular biosynthesis of superparamagnetic (blocking temperature 5.6 K) 2-lines ferrihydrite (Fh2L) nanoparticles was observed within living Euglena gracilis microalgae.

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► In this study we use Euglena gracilis euglenoid microalgae to synthesize ferrihydrite nanoparticles.
► These nanoparticles were obtained intracelullary.
► These hybrid materials present a superparamagnetic behavior with blocking temperature equal to 5.6 K.