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Yu X, Li H, Xu C, Xu Z, Chen S, Liu W, Zhang T, Sun H, Ge Y, Qi Z, Liu J. Liquid-Liquid Phase Separation-Mediated Photocatalytic Subcellular Hybrid System for Highly Efficient Hydrogen Production. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400097. [PMID: 38572522 PMCID: PMC11165473 DOI: 10.1002/advs.202400097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/28/2024] [Indexed: 04/05/2024]
Abstract
Plant chloroplasts have a highly compartmentalized interior, essential for executing photocatalytic functions. However, the construction of a photocatalytic reaction compartment similar to chloroplasts in inorganic-biological hybrid systems (IBS) has not been reported. Drawing inspiration from the compartmentalized chloroplast and the phenomenon of liquid-liquid phase separation, herein, a new strategy is first developed for constructing a photocatalytic subcellular hybrid system through liquid-liquid phase separation technology in living cells. Photosensitizers and in vivo expressed hydrogenases are designed to coassemble within the cell to create subcellular compartments for synergetic photocatalysis. This compartmentalization facilitates efficient electron transfer and light energy utilization, resulting in highly effective H2 production. The subcellular compartments hybrid system (HM/IBSCS) exhibits a nearly 87-fold increase in H2 production compared to the bare bacteria/hybrid system. Furthermore, the intracellular compartments of the photocatalytic reactor enhance the system's stability obviously, with the bacteria maintaining approximately 81% of their H2 production activity even after undergoing five cycles of photocatalytic hydrogen production. The research brings forward visionary prospects for the field of semi-artificial photosynthesis, offering new possibilities for advancements in areas such as renewable energy, biomanufacturing, and genetic engineering.
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Affiliation(s)
- Xiaoxuan Yu
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
- Sino‐German Joint Research Lab for Space Biomaterials and Translational TechnologySchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072China
| | - Hui Li
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
- Sino‐German Joint Research Lab for Space Biomaterials and Translational TechnologySchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072China
| | - Chengchen Xu
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
| | - Zhengwei Xu
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
| | - Shuheng Chen
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
| | - Wang Liu
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
| | - Tianlong Zhang
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
| | - Hongcheng Sun
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
| | - Yan Ge
- Sino‐German Joint Research Lab for Space Biomaterials and Translational TechnologySchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072China
| | - Zhenhui Qi
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
- Sino‐German Joint Research Lab for Space Biomaterials and Translational TechnologySchool of Life SciencesNorthwestern Polytechnical UniversityXi'an710072China
| | - Junqiu Liu
- Key Laboratory of Organosilicon Chemistry and Material TechnologyMinistry of EducationCollege of MaterialChemistry and Chemical EngineeringHangzhou Normal UniversityHangzhou311121China
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2
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Bassett S, Ding Y, Roy MK, Reisz JA, D'Alessandro A, Nagpal P, Chatterjee A. Light-Driven Metabolic Pathways in Non-Photosynthetic Biohybrid Bacteria. Chembiochem 2024; 25:e202300572. [PMID: 37861981 DOI: 10.1002/cbic.202300572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/11/2023] [Accepted: 10/19/2023] [Indexed: 10/21/2023]
Abstract
Biomanufacturing via microorganisms relies on carbon substrates for molecular feedstocks and a source of energy to carry out enzymatic reactions. This creates metabolic bottlenecks and lowers the efficiency for substrate conversion. Nanoparticle biohybridization with proteins and whole cell surfaces can bypass the need for redox cofactor regeneration for improved secondary metabolite production in a non-specific manner. Here we propose using nanobiohybrid organisms (Nanorgs), intracellular protein-nanoparticle hybrids formed through the spontaneous coupling of core-shell quantum dots (QDs) with histidine-tagged enzymes in non-photosynthetic bacteria, for light-mediated control of bacterial metabolism. This proved to eliminate metabolic constrictions and replace glucose with light as the source of energy in Escherichia coli, with an increase in growth by 1.7-fold in 75 % reduced nutrient media. Metabolomic tracking through carbon isotope labeling confirmed flux shunting through targeted pathways, with accumulation of metabolites downstream of respective targets. Finally, application of Nanorgs with the Ehrlich pathway improved isobutanol titers/yield by 3.9-fold in 75 % less sugar from E. coli strains with no genetic alterations. These results demonstrate the promise of Nanorgs for metabolic engineering and low-cost biomanufacturing.
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Affiliation(s)
- Shane Bassett
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Yuchen Ding
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Micaela K Roy
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, 80045, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, 80045, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, 80045, USA
| | - Prashant Nagpal
- ARC Labs, Louisville, CO 80027, USA
- Sachi Bio, Inc., Louisville, CO 80027, USA
| | - Anushree Chatterjee
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
- ARC Labs, Louisville, CO 80027, USA
- Sachi Bio, Inc., Louisville, CO 80027, USA
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3
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Ding Y, Bertram JR, Nagpal P. Utilizing Atmospheric Carbon Dioxide and Sunlight in Graphene Quantum Dot-Based Nano-Biohybrid Organisms for Making Carbon-Negative and Carbon-Neutral Products. ACS APPLIED MATERIALS & INTERFACES 2023; 15:53464-53475. [PMID: 37953629 DOI: 10.1021/acsami.3c12524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Increasing emissions of greenhouse gases compounded with legacy emissions in the earth's atmosphere poses an existential threat to human survival. One potential solution is creating carbon-negative and carbon-neutral materials, specifically for commodities used heavily throughout the globe, using a low-cost, scalable, and technologically and economically feasible process that can be deployed without the need for extensive infrastructure or skill requirements. Here, we demonstrate that nickel-functionalized graphene quantum dots (GQDs) can effectively couple to nonphotosynthetic bacteria at a cellular, molecular, and optoelectronic level, creating nanobiohybrid organisms (nanorgs) that enable the utilization of sunlight to convert carbon dioxide, air, and water into high-value-added chemicals such as ammonia (NH3), ethylene (C2H4), isopropanol (IPA), 2,3-butanediol (BDO), C11-C15 methyl ketones (MKs), and degradable bioplastics poly hydroxybutyrate (PHB) with high efficiency and selectivity. We demonstrate a high turnover number (TON) of up to 108 (mol of product per mol of cells), ease of application, facile scalability (demonstrated using a 30 L tank in a lab), and sustainable generation of carbon nanomaterials from recovered bacteria for creating nanorgs without the use of any toxic chemicals or materials. These findings can have important implications for the further development of sustainable processes for making carbon-negative materials using nanorgs.
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Affiliation(s)
- Yuchen Ding
- Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - John R Bertram
- Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
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4
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Wu GK, Zhao MX, Chen SR, Sun YN, Qin SF, Wang AJ, Ye QF, Alwathnani H, You LX, Rensing C. Antioxidant CeO 2 doped with carbon dots enhance ammonia production by an electroactive Azospirillum humicireducens SgZ-5 T. CHEMOSPHERE 2023; 341:140094. [PMID: 37678589 DOI: 10.1016/j.chemosphere.2023.140094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/01/2023] [Accepted: 09/05/2023] [Indexed: 09/09/2023]
Abstract
Microbial nitrogen fixation is a fundamental process in the nitrogen cycle, providing a continuous supply of biologically available nitrogen essential for life. In this study, we combined cerium oxide-doped carbon dots (CeO2/CDs) with electroactive nitrogen-fixing bacterium Azospirillum humicireducens SgZ-5T to enhance nitrogen fixation through ammonium production. Our research demonstrates that treatment of SgZ-5T cells with CeO2/CDs (0.2 mg mL-1) resulted in a 265.70% increase in ammonium production compared to SgZ-5T cells alone. CeO2/CDs facilitate electron transfer in the biocatalytic process, thereby enhancing nitrogenase activity. Additionally, CeO2/CDs reduce the concentration of reactive oxygen species in SgZ-5T cells, leading to increased ammonium production. The upregulation of nifD, nifH and nifK gene expression upon incorporation of CeO2/CDs (0.2 mg mL-1) into SgZ-5T cells supports this observation. Our findings not only provide an economical and environmentally friendly approach to enhance biological nitrogen fixation but also hold potential for alleviating nitrogen fertilizer scarcity.
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Affiliation(s)
- Gao-Kai Wu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Meng-Xin Zhao
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Si-Ru Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Yi-Nan Sun
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Su-Fang Qin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Ai-Jun Wang
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Qun-Feng Ye
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China
| | - Hend Alwathnani
- Department of Botany and Microbiology, King Saud University, Riyadh, 11495, Saudi Arabia
| | - Le-Xing You
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, PR China.
| | - Christopher Rensing
- Institute of Environmental Microbiology, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
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5
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Ding Y, Lee CC, Hu Y, Ribbe MM, Nagpal P, Chatterjee A. Light-driven Transformation of Carbon Monoxide into Hydrocarbons using CdS@ZnS : VFe Protein Biohybrids. CHEMSUSCHEM 2023; 16:e202300981. [PMID: 37419863 DOI: 10.1002/cssc.202300981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 07/07/2023] [Indexed: 07/09/2023]
Abstract
Enzymatic Fisher-Tropsch (FT) process catalyzed by vanadium (V)-nitrogenase can convert carbon monoxide (CO) to longer-chain hydrocarbons (>C2) under ambient conditions, although this process requires high-cost reducing agent(s) and/or the ATP-dependent reductase as electron and energy sources. Using visible light-activated CdS@ZnS (CZS) core-shell quantum dots (QDs) as alternative reducing equivalent for the catalytic component (VFe protein) of V-nitrogenase, we first report a CZS : VFe biohybrid system that enables effective photo-enzymatic C-C coupling reactions, hydrogenating CO into hydrocarbon fuels (up to C4) that can be hardly achieved with conventional inorganic photocatalysts. Surface ligand engineering optimizes molecular and opto-electronic coupling between QDs and the VFe protein, realizing high efficiency (internal quantum yield >56 %), ATP-independent, photon-to-fuel production, achieving an electron turnover number of >900, that is 72 % compared to the natural ATP-coupled transformation of CO into hydrocarbons by V-nitrogenase. The selectivity of products can be controlled by irradiation conditions, with higher photon flux favoring (longer-chain) hydrocarbon generation. The CZS : VFe biohybrids not only can find applications in industrial CO removal for high-value-added chemical production by using the cheap, renewable solar energy, but also will inspire related research interests in understanding the molecular and electronic processes in photo-biocatalytic systems.
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Affiliation(s)
- Yuchen Ding
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
| | - Chi Chung Lee
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA 92697-3900, USA
| | - Yilin Hu
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA 92697-3900, USA
| | - Markus M Ribbe
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, CA 92697-3900, USA
- Department of Chemistry, University of California, Irvine, USA
| | - Prashant Nagpal
- Sachi Bio, Louisville, CO 80027, USA
- Antimicrobial Regeneration Consortium Labs, Louisville, CO 80027, USA
| | - Anushree Chatterjee
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, CO 80303, USA
- Sachi Bio, Louisville, CO 80027, USA
- Antimicrobial Regeneration Consortium Labs, Louisville, CO 80027, USA
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6
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Chen Z, Quek G, Zhu JY, Chan SJW, Cox-Vázquez SJ, Lopez-Garcia F, Bazan GC. A Broad Light-Harvesting Conjugated Oligoelectrolyte Enables Photocatalytic Nitrogen Fixation in a Bacterial Biohybrid. Angew Chem Int Ed Engl 2023; 62:e202307101. [PMID: 37438952 DOI: 10.1002/anie.202307101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/27/2023] [Accepted: 07/12/2023] [Indexed: 07/14/2023]
Abstract
We report a rationally designed membrane-intercalating conjugated oligoelectrolyte (COE), namely COE-IC, which endows aerobic N2 -fixing bacteria Azotobacter vinelandii with a light-harvesting ability that enables photosynthetic ammonia production. COE-IC possesses an acceptor-donor-acceptor (A-D-A) type conjugated core, which promotes visible light absorption with a high molar extinction coefficient. Furthermore, COE-IC spontaneously associates with A. vinelandii to form a biohybrid in which the COE is intercalated within the lipid bilayer membrane. In the presence of L-ascorbate as a sacrificial electron donor, the resulting COE-IC/A. vinelandii biohybrid showed a 2.4-fold increase in light-driven ammonia production, as compared to the control. Photoinduced enhancement of bacterial biomass and production of L-amino acids is also observed. Introduction of isotopically enriched 15 N2 atmosphere led to the enrichment of 15 N-containing intracellular metabolites, consistent with the products being generated from atmospheric N2 .
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Affiliation(s)
- Zhongxin Chen
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
| | - Glenn Quek
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Ji-Yu Zhu
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Samuel J W Chan
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
| | - Sarah J Cox-Vázquez
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
| | - Fernando Lopez-Garcia
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
| | - Guillermo C Bazan
- Department of Chemistry, National University of Singapore, Singapore, 117543, Singapore
- Institute for Functional Intelligent Materials, National University of Singapore, Singapore, 117544, Singapore
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, 117585, Singapore
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7
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Evstigneeva SS, Chumakov DS, Tumskiy RS, Khlebtsov BN, Khlebtsov NG. Detection and imaging of bacterial biofilms with glutathione-stabilized gold nanoclusters. Talanta 2023; 264:124773. [PMID: 37320983 DOI: 10.1016/j.talanta.2023.124773] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 05/25/2023] [Accepted: 06/05/2023] [Indexed: 06/17/2023]
Abstract
Bacterial biofilms colonize chronic wounds and surfaces of medical devices, thus making the development of reliable methods for imaging and detection of biofilms crucial. Although fluorescent identification of bacteria is sensitive and non-destructive, the lack of biofilm-specific fluorescent dyes limits the application of this technique to biofilm detection. Here, we demonstrate, for the first time, that fluorescent glutathione-stabilized gold nanoclusters (GSH-AuNCs) without targeting ligands can specifically interact with extracellular matrix components of Gram-negative and Gram-positive bacterial biofilms resulting in fluorescent staining of bacterial biofilms. By contrast, fluorescent bovine serum albumin-stabilized gold nanoclusters and 11-mercaptoundecanoic acid - stabilized gold nanoclusters do not stain the extracellular matrix of biofilms. According to molecular docking studies, GSH-AuNCs show affinity to several targets in extracellular matrix, including amyloid-anchoring proteins, matrix proteins and polysaccharides. Some experimental evidence was obtained for the interaction of GSH-AuNCs with the lipopolysaccharide (LPS) that was isolated from the matrix of Azospirillum baldaniorum biofilms. Based on GSH-AuNCs properties, we propose a new fluorescent method for the measurement of biofilm biomass with a limit of detection 1.7 × 105 CFU/mL. The sensitivity of the method is 10-fold higher than the standard biofilm quantification with the crystal violet assay. There is a good linear relationship between the fluorescence intensity from the biofilms and the number of CFU from the biofilms in the range from 2.6 × 105 to 6.7 × 107 CFU/mL. The developed nanocluster-mediated method of biofilm staining was successfully applied for quantitative detection of biofilm formation on urinary catheter surface. The presented data suggest that fluorescent GSH-AuNCs can be used to diagnose medical device-associated infections.
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Affiliation(s)
- S S Evstigneeva
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia.
| | - D S Chumakov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - R S Tumskiy
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia
| | - B N Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia; Institute of Physics, Saratov State University, 410012, Saratov, Russia
| | - N G Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), 410049 13 Prospekt Entuziastov, Saratov, 410049, Russia; Institute of Physics, Saratov State University, 410012, Saratov, Russia
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8
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Zhang J, Liu L, Chen X. Pushing hybrids to the limits. Nat Catal 2022. [DOI: 10.1038/s41929-022-00878-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Guan X, Erşan S, Hu X, Atallah TL, Xie Y, Lu S, Cao B, Sun J, Wu K, Huang Y, Duan X, Caram JR, Yu Y, Park JO, Liu C. Maximizing light-driven CO 2 and N 2 fixation efficiency in quantum dot-bacteria hybrids. Nat Catal 2022; 5:1019-1029. [PMID: 36844635 PMCID: PMC9956923 DOI: 10.1038/s41929-022-00867-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 09/30/2022] [Indexed: 11/11/2022]
Abstract
Integrating light-harvesting materials with microbial biochemistry is a viable approach to produce chemicals with high efficiency from the air, water, and sunlight. Yet it remains unclear whether all absorbed photons in the materials can be transferred through the material-biology interface for solar-to-chemical production and whether the presence of materials beneficially affect the microbial metabolism. Here we report a microbe-semiconductor hybrid by interfacing CO2/N2-fixing bacterium Xanthobacter autotrophicus with CdTe quantum dots for light-driven CO2 and N2 fixation with internal quantum efficiencies of 47.2 ± 7.3% and 7.1 ± 1.1%, respectively, reaching the biochemical limits of 46.1% and 6.9% imposed by the stoichiometry in biochemical pathways. Photophysical studies suggest fast charge-transfer kinetics at the microbe-semiconductor interfaces, while proteomics and metabolomics indicate a material-induced regulation of microbial metabolism favoring higher quantum efficiencies compared to the biological counterparts alone.
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Affiliation(s)
- Xun Guan
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Sevcan Erşan
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Xiangchen Hu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Timothy L. Atallah
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
- Department of Chemistry and Biochemistry, Denison University, Granville, Ohio 43023, United States
| | - Yongchao Xie
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Shengtao Lu
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Bocheng Cao
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
- Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Jingwen Sun
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Ke Wu
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Yu Huang
- Department of Materials Science and Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Xiangfeng Duan
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Justin R. Caram
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Yi Yu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - Junyoung O. Park
- Department of Chemical and Biomolecular Engineering, University of California Los Angeles, Los Angeles, California 90095, United States
| | - Chong Liu
- Department of Chemistry and Biochemistry, University of California Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California Los Angeles, Los Angeles, California 90095, United States
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10
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Zhu H, Wang S, Wang Y, Song C, Yao Q, Yuan X, Xie J. Gold nanocluster with AIE: A novel photodynamic antibacterial and deodorant molecule. Biomaterials 2022; 288:121695. [PMID: 35989188 DOI: 10.1016/j.biomaterials.2022.121695] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 07/15/2022] [Accepted: 07/21/2022] [Indexed: 11/02/2022]
Abstract
Designing long-lasting yet high-efficiency antimicrobial and deodorant agents is an everlasting goal for environmental and public health. Here we present the design of AIE-featured Au nanoclusters (NCs) for visible-light-driven antibacterial and deodorant applications. Owing to the intriguing AIE traits, the good harvest of visible-light, and rich surface chemistry, the AIE-featured Au NCs unprecedentedly exhibit excellent visible-light-driven antibacterial activities against gram-positive (≥98.5%) and gram-negative bacteria (≥99.94%), which is resulted from their photodynamic producibility of abundant reactive oxygen species including O2•-, •OH and H2O2 via O2 reduction and subsequent H2O2 oxidation. In addition, the Au NCs are demonstrated to be biocompatible, and easy to be deployed for downstream antibacterial and deodorant applications. For example, the Au NCs-modified domestic materials (e.g., latex, ceramic glaze, organic fiber, and clothings) achieve long-lasting antibacterial efficiency of 99% and deodorant efficiency of >97.9% under visible-light irradiation. This work may shed light on designing novel AIE-featured metal NCs with photodynamic antibacterial and deodorant functions, enabling metal NCs and corresponding downstream materials to step into the photodynamic antibacterial and deodorant era.
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Affiliation(s)
- Haiguang Zhu
- School of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao, 266042, PR China
| | - Shanshan Wang
- School of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao, 266042, PR China
| | - Yaru Wang
- School of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao, 266042, PR China
| | - Chuanwen Song
- School of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao, 266042, PR China
| | - Qiaofeng Yao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, PR China
| | - Xun Yuan
- School of Materials Science and Engineering, Qingdao University of Science and Technology (QUST), 53 Zhengzhou Rd., Shibei District, Qingdao, 266042, PR China.
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585, Singapore; Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, PR China.
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11
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Koh S, Choi Y, Lee I, Kim GM, Kim J, Park YS, Lee SY, Lee DC. Light-Driven Ammonia Production by Azotobacter vinelandii Cultured in Medium Containing Colloidal Quantum Dots. J Am Chem Soc 2022; 144:10798-10808. [DOI: 10.1021/jacs.2c01886] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Sungjun Koh
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for the NanoCentury, KAIST, Daejeon 34141, Republic of Korea
| | - Yoojin Choi
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Metabolic and Biomolecular Engineering National Research Laboratory, BioProcess Engineering Research Center and Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Ilsong Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for the NanoCentury, KAIST, Daejeon 34141, Republic of Korea
| | - Gui-Min Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for the NanoCentury, KAIST, Daejeon 34141, Republic of Korea
| | - Jayeong Kim
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for the NanoCentury, KAIST, Daejeon 34141, Republic of Korea
| | - Young-Shin Park
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Sang Yup Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- Metabolic and Biomolecular Engineering National Research Laboratory, BioProcess Engineering Research Center and Institute for the BioCentury, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
| | - Doh C. Lee
- Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 34141, Republic of Korea
- KAIST Institute for the NanoCentury, KAIST, Daejeon 34141, Republic of Korea
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Suri M, Mohamed Z, Bint E Naser SF, Mao X, Chen P, Daniel S, Hanrath T. Bioelectronic Platform to Investigate Charge Transfer between Photoexcited Quantum Dots and Microbial Outer Membranes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:15799-15810. [PMID: 35344337 DOI: 10.1021/acsami.1c25032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Photosynthetic semiconductor biohybrids (PSBs) convert light energy to chemical energy through photo-driven charge transfer from nanocrystals to microorganisms that perform bioreactions of interest. Initial proof-of-concept PSB studies with an emphasis on enhanced CO2 conversion have been encouraging; however, bringing the broad prospects of PSBs to fruition is contingent on establishing a firm fundamental understanding of underlying interfacial charge transfer processes. We introduce a bioelectronic platform that reduces the complexity of PSBs by focusing explicitly on interactions between colloidal quantum dots (QDs), microbial outer membranes, and native, small-molecule redox mediators. Our model platform employs a standard three-electrode electrochemical cell with supported outer membranes of Pseudomonas aeruginosa, pyocyanin redox mediators, and semiconducting CdSe QDs dispersed in an aqueous electrolyte. We present a comprehensive electrochemical analysis of this platform via electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and chronoamperometry (CA). EIS reveals the formation and electronic properties of supported outer membrane films. CV reveals the electrochemically active surface area of P. aeruginosa outer membranes and that pyocyanin is the sole species that performs redox with these outer membranes under sweeping applied potential. CA demonstrates that photoexcited charge transfer in this system is driven by the reduction of pyocyanin at the QD surface followed by diffusion of reduced pyocyanin through the outer membrane. The broad applicability of this platform across many bacterial species, QD architectures, and controlled environmental conditions affords the possibility to define design principles for future PSB systems to synergistically integrate concurrent advances in genetically engineered organisms and inorganic nanomaterials.
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Affiliation(s)
- Mokshin Suri
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Zeinab Mohamed
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Samavi Farnush Bint E Naser
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Xianwen Mao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Susan Daniel
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
- Meinig School of Biomedical Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Tobias Hanrath
- Robert F. Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
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Ye J, Hu A, Ren G, Chen M, Zhou S, He Z. Biophotoelectrochemistry for renewable energy and environmental applications. iScience 2021; 24:102828. [PMID: 34368649 PMCID: PMC8326206 DOI: 10.1016/j.isci.2021.102828] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Biophotoelectrochemistry (BPEC) is an interdisciplinary research field and combines bioelectrochemistry and photoelectrochemistry through the utilization of the catalytic abilities of biomachineries and light harvesters to accomplish the production of energy or chemicals driven by solar energy. The BPEC process may act as a new approach for sustainable green chemistry and waste minimization. This review provides the state-of-the-art introduction of BPEC basics and systems, with a focus on light harvesters and biocatalysts, configurations, photoelectron transfer mechanisms, and the potential applications in energy and environment. Several examples of BPEC applications are discussed including H2 production, CO2 reduction, chemical synthesis, pollution control, and biogeochemical cycle of elements. The challenges about BPEC systems are identified and potential solutions are proposed. The review aims to encourage further research of BPEC toward development of practical BPEC systems for energy and environmental applications.
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Affiliation(s)
- Jie Ye
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Andong Hu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Guoping Ren
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Man Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shungui Zhou
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhen He
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
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