Interfacing living unicellular algae cells with biocompatible polyelectrolyte-stabilised magnetic nanoparticles

Macromolecular Bioscience
Rawil F FakhrullinVesselin N Paunov

Abstract

Green algae are a promising platform for the development of biosensors and bioelectronic devices. Here we report a reliable single-step technique for the functionalisation of living unicellular green algae Chlorella pyrenoidosa with biocompatible 15 nm superparamagnetic nanoparticles stabilised with poly(allylamine hydrochloride). The magnetised algae cells can be manipulated and immobilised using external permanent magnets. The distribution of the nanoparticles on the cell walls of C. pyrenoidosa was studied by optical and fluorescence microscopy, TEM, SEM and EDX spectroscopy. The viability and the magnetic properties of the magnetised algae are studied in comparison with the native cells. The technique may find a number of potential applications in biotechnology and bioelectronics.

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Citations

Oct 15, 2013·Colloids and Surfaces. B, Biointerfaces·Sha Wang, Zhiguang Guo
May 20, 2011·Langmuir : the ACS Journal of Surfaces and Colloids·Renata T MinullinaRawil F Fakhrullin
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Jun 10, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Svetlana A KonnovaRawil F Fakhrullin
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Jan 8, 2013·Chemical Communications : Chem Comm·Svetlana A KonnovaRawil F Fakhrullin
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