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journal article·2024-02Open access

Bio‐Inspired Microreactors Continuously Synthesize Glucose Precursor from CO2 with an Energy Conversion Efficiency 3.3 Times of Rice

Yujiao Zhu, Fengjia Xie, Tommy Ching Kit Wun, Kecheng Li, Huan Lin, Chi Chung Tsoi, Huaping Jia, Yao Chai, Qian Zhao, Benedict Tsz‐woon Lo, Shao‐Yuan Leu, Yanwei Jia, Kangning Ren, Xuming Zhang

Advanced Science· Volume 11· Issue 6
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Source abstract

Abstract

Abstract Excessive CO2 and food shortage are two grand challenges of human society. Directly converting CO2 into food materials can simultaneously alleviate both, like what green crops do in nature. Nevertheless, natural photosynthesis has a limited energy efficiency due to low activity and specificity of key enzyme D‐ribulose‐1,5‐bisphosphate carboxylase/oxygenase (RuBisCO). To enhance the efficiency, many prior studies focused on engineering the enzymes, but this study chooses to learn from the nature to design more efficient reactors. This work is original in mimicking the stacked structure of thylakoids in chloroplasts to immobilize RuBisCO in a microreactor using the layer‐by‐layer strategy, obtaining the continuous conversion of CO2 into glucose precursor at 1.9 nmol min−1 with enhanced activity (1.5 times), stability (≈8 times), and reusability (96% after 10 reuses) relative to the free RuBisCO. The microreactors are further scaled out from one to six in parallel and achieve the production at 15.8 nmol min−1 with an energy conversion efficiency of 3.3 times of rice, showing better performance of this artificial synthesis than NPS in terms of energy conversion efficiency. The exploration of the potential of mass production would benefit both food supply and carbon neutralization.
Source: crossref · Quality: baseline

Research context

OpenAlex topics: Photosynthetic Processes and Mechanisms · Enzyme Catalysis and Immobilization · Electrochemical sensors and biosensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Applied Physics The Hong Kong Polytechnic University Kowloon Hong Kong 999077 China

Department of Chemistry Hong Kong Baptist University Kowloon Hong Kong 999077 China

Research Centre for Resources Engineering towards Carbon Neutrality (RCRE) The Hong Kong Polytechnic University Kowloon Hong Kong 999077 China

Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University Kowloon Hong Kong 999077 China

Beijing Key Laboratory for Green Catalysis and Separation Department of Chemical Engineering Beijing University of Technology Beijing 100124 China

Photonics Research Institute The Hong Kong Polytechnic University Kowloon Hong Kong 999077 China

Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Kowloon Hong Kong 999077 China

State‐Key Laboratory of Analog and Mixed‐Signal VLSI, Institute of Microelectronics Faculty of Science and Technology – ECE Faculty of Health Sciences and MoE Frontiers Science Center for Precision Oncology University of Macau Macau 999078 China

Funding

Hong Kong Polytechnic University · Innovation and Technology Commission - Hong Kong

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