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Liquid-Liquid Phase Separation-Mediated Photocatalytic Subcellular Hybrid System for Highly Efficient Hydrogen
Xiaoxuan Yu1,2, Hui Li1,2, Chengchen Xu1
1Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|April 4, 2024
Summary
Researchers created a novel photocatalytic system within living cells using liquid-liquid phase separation. This compartmentalization significantly boosts hydrogen production and stability for renewable energy applications.
Area of Science:
- Biotechnology
- Renewable Energy
- Artificial Photosynthesis
Background:
- Plant chloroplasts utilize compartmentalization for efficient photocatalysis.
- Creating similar photocatalytic compartments in inorganic-biological hybrid systems (IBS) remains a challenge.
Purpose of the Study:
- To develop a novel strategy for constructing photocatalytic subcellular hybrid systems within living cells.
- To mimic chloroplast compartmentalization for enhanced photocatalysis.
Main Methods:
- Utilized liquid-liquid phase separation technology to create intracellular compartments.
- Coassembled photosensitizers and in vivo expressed hydrogenases within these compartments.
- Investigated hydrogen (H2) production and system stability through cyclic photocatalysis.
Main Results:
- Achieved synergetic photocatalysis within engineered subcellular compartments.
- Demonstrated a significant 87-fold increase in H2 production compared to control systems.
- The hybrid system maintained 81% of its H2 production activity after five cycles, indicating enhanced stability.
Conclusions:
- Successfully engineered intracellular compartments for efficient and stable photocatalysis using liquid-liquid phase separation.
- This approach offers a promising platform for advancing semi-artificial photosynthesis.
- Opens new avenues for renewable energy, biomanufacturing, and genetic engineering.
