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Living electrodes based on green algae in hydrogels

Journal Article


Abstract


  • Soft and living electrodes offer new possibilities for addressing the biological-electrical interface beyond the use of traditional metal based bio-electrodes. Here, we present a living electrode material from green algae "Chlorella vulgaris"embedded within alginate hydrogel and cross-linked at different calcium chloride concentrations. Mechanical, rheological, electrical and biological properties of the living electrode materials were assessed to investigate the impact of algal growth on the characteristics of resulting gels. The electrical behaviour of the algae/alginate hydrogels was characterised using electrical impedance spectroscopy. Living electrodes containing algae exhibit conductivity values of up to 4.9 ± 0.2 mS cm-1. These conductivity values were sufficient to use these living hydrogels as electrode components in simple electrical circuits.

Publication Date


  • 2021

Citation


  • Al-Mossawi, M., Warren, H., Molino, P. J., Calvert, P., & In Het Panhuis, M. (2021). Living electrodes based on green algae in hydrogels. Materials Advances, 2(4), 1369-1377. doi:10.1039/d0ma00985g

Scopus Eid


  • 2-s2.0-85122630815

Start Page


  • 1369

End Page


  • 1377

Volume


  • 2

Issue


  • 4

Abstract


  • Soft and living electrodes offer new possibilities for addressing the biological-electrical interface beyond the use of traditional metal based bio-electrodes. Here, we present a living electrode material from green algae "Chlorella vulgaris"embedded within alginate hydrogel and cross-linked at different calcium chloride concentrations. Mechanical, rheological, electrical and biological properties of the living electrode materials were assessed to investigate the impact of algal growth on the characteristics of resulting gels. The electrical behaviour of the algae/alginate hydrogels was characterised using electrical impedance spectroscopy. Living electrodes containing algae exhibit conductivity values of up to 4.9 ± 0.2 mS cm-1. These conductivity values were sufficient to use these living hydrogels as electrode components in simple electrical circuits.

Publication Date


  • 2021

Citation


  • Al-Mossawi, M., Warren, H., Molino, P. J., Calvert, P., & In Het Panhuis, M. (2021). Living electrodes based on green algae in hydrogels. Materials Advances, 2(4), 1369-1377. doi:10.1039/d0ma00985g

Scopus Eid


  • 2-s2.0-85122630815

Start Page


  • 1369

End Page


  • 1377

Volume


  • 2

Issue


  • 4