In situ-immobilization of two model cyanobacterial strains in ceramic structures: A new biohybrid material for photobioreactor applications

• Cyanobacteria were successfully immobilized within magnesium phosphate cements.
• The survival of the cyanobacteria was effected by the hydraulic setting reaction.
• Viability and photoactivity could be maintained for at least 4 weeks.

Two cyanobacterial strains, Synechocystis sp. PCC 6803 and Nostoc punctiforme ATCC 29133 were immobilized within magnesium phosphate based cements, showing a viability and activity for at least 4 weeks. These biohybrids are considered as an alternative photobioreactor material for bioremediation or an improved yield of biotechnologically relevant molecules.