In summary, we have demonstrated for the first me the u liza on of microalgae as unique and sustainable "biofactories" for the development of biocompa ble materials suitable for two-photon 3D laser prin ng. The two selected microalgae, O. aurita and T. striata, have been proved to be promising strains with high content in lipids. The extracted lipids were analyzed in terms of double bonds per molecule and subsequently func onalized by incorpora ng acrylate moie es as photoreac ve units.