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Zhongyang Zhang, Yumeng Chen, Lasse Hyldgaard Klausen, Sebastian Amland Skaanvik, Dan Wang, Jianfeng Chen, Mingdong Dong
Engineering 2023, Volume 24, Issue 5, Pages 102-113 doi: 10.1016/j.eng.2022.09.016
Microalgae are a group of microscopic eukaryotic organisms that can transform carbon dioxide into diverse bioactive compounds through photosynthesis using chlorophyll a. Over the past decade, biohybrid materials comprising live microalgae and other biocompatible components have exhibited tremendous potential in solving many medical challenges, such as oncotherapy, tissue reconstruction, and drug delivery. Microalgae immobilized within conventional biomaterials can maintain their photosynthetic activity for an extended period of time, thereby providing local oxygen and working as biocompatible interfacing materials for regulating cell activities. The motility of microalgae has also inspired the development of biohybrid microrobots, in which drug molecules can be bound to the surface of microalgae via noncovalent adsorption and delivered to the target area through precisely controlled locomotion. Moreover, the autofluorescence, phototaxis, and biomass production of microalgae can be integrated into the design of novel biohybrid materials with versatile functions. Furthermore, through appropriate genetic manipulation, engineered microalgae can endow biohybrid materials with novel properties, such as specific cell-targeting capability and the local release of recombinant proteins from algae cells—technologies that show promise for promoting and diversifying the clinical use of microalgae-based biohybrid materials (MBBMs) in several fields of biomedicine. Herein, we summarize the fabrication, physiology, and locomotion ability of MBBMs; we then review typical and recent reports on the use of MBBMs in the biomedical field; finally, we provide critical discussions on the challenges and future perspectives of MBBMs.
Keywords： Biointerface Microalgae Biohybrid materials Microrobots
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