1
|
Frei H. Controlled electron transfer by molecular wires embedded in ultrathin insulating membranes for driving redox catalysis. PHOTOSYNTHESIS RESEARCH 2023:10.1007/s11120-023-01061-7. [PMID: 38108928 DOI: 10.1007/s11120-023-01061-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 11/09/2023] [Indexed: 12/19/2023]
Abstract
Organic bilayers or amorphous silica films of a few nanometer thickness featuring embedded molecular wires offer opportunities for chemically separating while at the same time electronically connecting photo- or electrocatalytic components. Such ultrathin membranes enable the integration of components for which direct coupling is not sufficiently efficient or stable. Photoelectrocatalytic systems for the generation or utilization of renewable energy are among the most prominent ones for which ultrathin separation layers open up new approaches for component integration for improving efficiency. Recent advances in the assembly and spectroscopic, microscopic, and photoelectrochemical characterization have enabled the systematic optimization of the structure, energetics, and density of embedded molecular wires for maximum charge transfer efficiency. The progress enables interfacial designs for the nanoscale integration of the incompatible oxidation and reduction catalysis environments of artificial photosystems and of microbial (or biomolecular)-abiotic systems for renewable energy.
Collapse
Affiliation(s)
- Heinz Frei
- Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, University of California, Berkeley, CA, 94720, USA.
| |
Collapse
|
2
|
Moreland AS, Limwongyut J, Holton SJ, Bazan GC. Structural modulation of membrane-intercalating conjugated oligoelectrolytes decouples outer membrane permeabilizing and antimicrobial activities. Chem Commun (Camb) 2023; 59:12172-12175. [PMID: 37747122 DOI: 10.1039/d3cc02861e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
We report a series of membrane-intercalating conjugated oligoelectrolytes (MICOEs) to probe how structural features impact bacterial membrane integrity and antibiotic activity. Minimum inhibitory concentrations (MICs) and outer membrane (OM) permeability correlated to different structural parameters suggesting that the antimicrobial mechanism is not related to OM permeabilization. However, lipid order parameters and MICs correlated to the same structural feature suggesting a possible link.
Collapse
Affiliation(s)
- Alex S Moreland
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| | | | - Samuel J Holton
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
| | - Guillermo C Bazan
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA 93106, USA
- Department of Chemistry, National University of Singapore 117544, Singapore
- Department of Chemical and Biomolecular Engineering, National University of Singapore 117544, Singapore.
| |
Collapse
|
3
|
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 .
Collapse
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
| |
Collapse
|
4
|
Quek G, Vázquez RJ, McCuskey SR, Lopez-Garcia F, Bazan GC. An n-Type Conjugated Oligoelectrolyte Mimics Transmembrane Electron Transport Proteins for Enhanced Microbial Electrosynthesis. Angew Chem Int Ed Engl 2023; 62:e202305189. [PMID: 37222113 DOI: 10.1002/anie.202305189] [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: 04/12/2023] [Revised: 05/22/2023] [Accepted: 05/24/2023] [Indexed: 05/25/2023]
Abstract
Interfacing bacteria as biocatalysts with an electrode provides the basis for emerging bioelectrochemical systems that enable sustainable energy interconversion between electrical and chemical energy. Electron transfer rates at the abiotic-biotic interface are, however, often limited by poor electrical contacts and the intrinsically insulating cell membranes. Herein, we report the first example of an n-type redox-active conjugated oligoelectrolyte, namely COE-NDI, which spontaneously intercalates into cell membranes and mimics the function of endogenous transmembrane electron transport proteins. The incorporation of COE-NDI into Shewanella oneidensis MR-1 cells amplifies current uptake from the electrode by 4-fold, resulting in the enhanced bio-electroreduction of fumarate to succinate. Moreover, COE-NDI can serve as a "protein prosthetic" to rescue current uptake in non-electrogenic knockout mutants.
Collapse
Affiliation(s)
- Glenn Quek
- Departments of Chemistry and Chemical & Biomolecular Engineering, Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, 119077, Singapore, Singapore
| | - Ricardo Javier Vázquez
- Departments of Chemistry and Chemical & Biomolecular Engineering, Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, 119077, Singapore, Singapore
| | - Samantha R McCuskey
- Departments of Chemistry and Chemical & Biomolecular Engineering, Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, 119077, Singapore, Singapore
| | - Fernando Lopez-Garcia
- Departments of Chemistry and Chemical & Biomolecular Engineering, Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, 119077, Singapore, Singapore
| | - Guillermo C Bazan
- Departments of Chemistry and Chemical & Biomolecular Engineering, Institute for Functional Intelligent Materials (I-FIM), National University of Singapore, 119077, Singapore, Singapore
| |
Collapse
|
5
|
Zhou C, Chia GWN, Yong KT. Membrane-intercalating conjugated oligoelectrolytes. Chem Soc Rev 2022; 51:9917-9932. [PMID: 36448452 DOI: 10.1039/d2cs00014h] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
By acting as effective biomimetics of the lipid bilayers, membrane-intercalating conjugated oligoelectrolytes (MICOEs) can spontaneously insert themselves into both synthetic lipid bilayers and biological membranes. The modular and intentional molecular design of MICOEs enable a range of applications, such as bioproduction, biocatalysis, biosensing, and therapeutics. This tutorial review provides a structural evolution of MICOEs, which originated from the broader class of conjugated molecules, and analyses the drivers behind this evolutionary process. Various representative applications of MICOEs, accompanied by insights into their molecular design principles, will be reviewed separately. Perspectives on the current challenges and opportunities in research on MICOEs will be discussed at the end of the review to highlight their potential as unconventional and value-added materials for biological systems.
Collapse
Affiliation(s)
- Cheng Zhou
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China. .,Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Geraldine W N Chia
- Department of Chemistry, National University of Singapore, Singapore 117543, Singapore
| | - Ken-Tye Yong
- School of Biomedical Engineering, The University of Sydney, Sydney 2006, New South Wales, Australia.
| |
Collapse
|
6
|
Wang YX, Hou N, Liu XL, Mu Y. Advances in interfacial engineering for enhanced microbial extracellular electron transfer. BIORESOURCE TECHNOLOGY 2022; 345:126562. [PMID: 34910968 DOI: 10.1016/j.biortech.2021.126562] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 06/14/2023]
Abstract
The extracellular electron transfer (EET) efficiency between electroactive microbes (EAMs) and electrode is a key factor determining the development of microbial electrochemical technology (MET). Currently, the low EET efficiency of EAMs limits the application of MET in the fields of organic matter degradation, electric energy production, seawater desalination, bioremediation and biosensing. Enhancement of the interaction between EAMs and electrode by interfacial engineering methods brings bright prospects for the improvement of the EET efficiency of EAMs. In view of the research in recent years, this mini-review systematically summarizes various interfacial engineering strategies ranging from electrode surface modification to hybrid biofilm formation, then to single cell interfacial engineering and intracellular reformation for promoting the electron transfer between EAMs and electrode, focusing on the applicability and limitations of these methodologies. Finally, the possible key directions, challenges and opportunities for future interfacial engineering to strengthen the microbial EET are proposed in this mini-review.
Collapse
Affiliation(s)
- Yi-Xuan Wang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Nannan Hou
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Xiao-Li Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China
| | - Yang Mu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, China.
| |
Collapse
|
7
|
Tang H, Liu Y, Li B, Shang B, Yang J, Zhang C, Yang L, Chen K, Wang W, Liu J. Water-soluble PANI:PSS designed for spontaneous non-disruptive membrane penetration and direct intracellular photothermal damage on bacteria. Bioact Mater 2021; 6:4758-4771. [PMID: 34136724 PMCID: PMC8166762 DOI: 10.1016/j.bioactmat.2021.05.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 05/12/2021] [Accepted: 05/12/2021] [Indexed: 12/11/2022] Open
Abstract
The major challenge in the field of antibacterial agents is to overcome the low-permeability of bacteria cell membranes that protects the cells against diverse drugs. In this work, water-soluble polyaniline (PANI)-poly (p-styrenesulfonic acid) (PSS) (PANI:PSS) is found to spontaneously penetrate bacteria cellular membranes in a non-disruptive way, leaving no evidence of membrane poration/disturbance or cell death, thus avoiding side effects caused by cationic ammonia groups in traditional ammonia-containing antibacterial agents. For aqueous synthesis, which is important for biocompatibility, the polymer is synthesized via an enzyme-mimetic route relying on the catalysis of a nanozyme. Owing to its fluorescent properties, the localization of as-prepared PANI:PSS is determined by the confocal microscope, and the results confirm its rapid entry into bacteria. Under 808 nm near-infrared (NIR) irradiation, the internalized PANI:PSS generates local hyperthermia and destroys bacteria highly efficiently from inside the cells due to its excellent photothermal effects. Staphylococcus aureus (S. aureus), M ethicillin-resistant Staphylococcus aureus (MRSA) and Escherichia coli (E. coli) could be effectively eliminated as well as the corresponding bacterial biofilms. Results of in vivo antibacterial experiments demonstrate excellent antibacterial activities of the water-soluble PANI:PSS without side effects. Therefore, the prepared water-soluble polymer in this study has great potential in the treatment of various bacterial infections.
Collapse
Affiliation(s)
- Huanfeng Tang
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Yifan Liu
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Bing Li
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China
| | - Bo Shang
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Jiacheng Yang
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Congrou Zhang
- Tianjin Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, And Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Lijun Yang
- Tianjin Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, And Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| | - Kezheng Chen
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Wei Wang
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Jianfeng Liu
- Lab of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
- Tianjin Key Laboratory of Radiopharmacokinetics for Innovative Drugs, Chinese Academy of Medical Sciences, And Institute of Radiation Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300192, PR China
| |
Collapse
|
8
|
McCuskey SR, Chatsirisupachai J, Zeglio E, Parlak O, Panoy P, Herland A, Bazan GC, Nguyen TQ. Current Progress of Interfacing Organic Semiconducting Materials with Bacteria. Chem Rev 2021; 122:4791-4825. [PMID: 34714064 DOI: 10.1021/acs.chemrev.1c00487] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Microbial bioelectronics require interfacing microorganisms with electrodes. The resulting abiotic/biotic platforms provide the basis of a range of technologies, including energy conversion and diagnostic assays. Organic semiconductors (OSCs) provide a unique strategy to modulate the interfaces between microbial systems and external electrodes, thereby improving the performance of these incipient technologies. In this review, we explore recent progress in the field on how OSCs, and related materials capable of charge transport, are being used within the context of microbial systems, and more specifically bacteria. We begin by examining the electrochemical communication modes in bacteria and the biological basis for charge transport. Different types of synthetic organic materials that have been designed and synthesized for interfacing and interrogating bacteria are discussed next, followed by the most commonly used characterization techniques for evaluating transport in microbial, synthetic, and hybrid systems. A range of applications is subsequently examined, including biological sensors and energy conversion systems. The review concludes by summarizing what has been accomplished so far and suggests future design approaches for OSC bioelectronics materials and technologies that hybridize characteristic properties of microbial and OSC systems.
Collapse
Affiliation(s)
- Samantha R McCuskey
- Department of Chemistry, National University of Singapore, Singapore 119077, Singapore
| | - Jirat Chatsirisupachai
- Center for Polymers and Organic Solids & Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States.,Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, Thailand
| | - Erica Zeglio
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm 17177, Sweden
| | - Onur Parlak
- Dermatology and Venereology Division, Department of Medicine(Solna), Karolinska Institute, Stockholm 17177, Sweden.,AIMES Center of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm 17177, Sweden
| | - Patchareepond Panoy
- Center for Polymers and Organic Solids & Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States.,Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, Thailand
| | - Anna Herland
- Division of Micro and Nanosystems, School of Electrical Engineering and Computer Science, KTH Royal Institute of Technology, Stockholm 17177, Sweden.,AIMES Center of Integrated Medical and Engineering Sciences, Department of Neuroscience, Karolinska Institute, Stockholm 17177, Sweden
| | - Guillermo C Bazan
- Department of Chemistry, National University of Singapore, Singapore 119077, Singapore
| | - Thuc-Quyen Nguyen
- Center for Polymers and Organic Solids & Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
| |
Collapse
|
9
|
Improved Microbial Fuel Cell Performance by Engineering E. coli for Enhanced Affinity to Gold. ENERGIES 2021. [DOI: 10.3390/en14175389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Microorganism affinity for surfaces can be controlled by introducing material binding motifs into proteins such as fimbrial tip and outer membrane proteins. Here, controlled surface affinity is used to manipulate and enhance electrical power production in a typical bioelectrochemical system, a microbial fuel cell (MFC). Specifically, gold-binding motifs of various affinity were introduced into two scaffolds in Escherichia coli: eCPX, a modified version of outer membrane protein X (OmpX), and FimH, the tip protein of the fimbriae. The behavior of these strains on gold electrodes was examined in small-scale (240 µL) MFCs and 40 mL U-tube MFCs. A clear correlation between the affinity of a strain for a gold surface and the peak voltage produced during MFC operation is shown in the small-scale MFCs; strains displaying peptides with high affinity for gold generate potentials greater than 80 mV while strains displaying peptides with minimal affinity to gold produce potentials around 30 mV. In the larger MFCs, E. coli strains with high affinity to gold exhibit power densities up to 0.27 mW/m2, approximately a 10-fold increase over unengineered strains lacking displayed peptides. Moreover, in the case of the modified FimH strains, this increased power production is sustained for five days.
Collapse
|
10
|
Xu B, Li Z, Jiang Y, Chen M, Chen B, Xin F, Dong W, Jiang M. Recent advances in the improvement of bi-directional electron transfer between abiotic/biotic interfaces in electron-assisted biosynthesis system. Biotechnol Adv 2021; 54:107810. [PMID: 34333092 DOI: 10.1016/j.biotechadv.2021.107810] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 07/06/2021] [Accepted: 07/26/2021] [Indexed: 12/18/2022]
Abstract
As an important biosynthesis technology, electron-assisted biosynthesis (EABS) system can utilize exogenous electrons to regulate the metabolic network of microorganisms, realizing the biosynthesis of high value-added chemicals and CO2 fixation. Electrons play crucial roles as the energy carriers in the EABS process. In fact, efficient interfacial electron transfer (ET) is the decisive factor to realize the rapid energy exchange, thus stimulating the biosynthesis of target metabolic products. However, due to the interfacial resistance of ET between the abiotic solid electrode and biotic microbial cells, the low efficiency of interfacial ET has become a major bottleneck, further limiting the practical application of EABS system. As the cell membrane is insulated, even the cell membrane embedded electron conduit (no matter cytochromes or channel protein for shuttle transferring) to increase the cell membrane conductivity, the ET between membrane electron conduit and electrode surface is kinetically restricted. In this review, the pathway of bi-directional interfacial ET in EABS system was summarized. Furthermore, we reviewed representative milestones and advances in both the anode outward interfacial ET (from organism to electrode) and cathode inward interfacial ET (from electrode to organism). Here, new insights from the perspectives of material science and synthetic biology were also proposed, which were expected to provide some innovative opinions and ideas for the following in-depth studies.
Collapse
Affiliation(s)
- Bin Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China
| | - Zhe Li
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University, Nanjing 211800, PR China
| | - Yujia Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China
| | - Minjiao Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China
| | - Boryann Chen
- Department of Chemical and Materials Engineering, National I-Lan University, I-Lan 26047, Taiwan
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211800, PR China
| | - Weiliang Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211800, PR China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing, 211800, PR China.
| |
Collapse
|
11
|
Chen M, Liu X, Cheng F, Lu X, Tong Y. Oxygen-deficient TiO2 decorated carbon paper as advanced anodes for microbial fuel cells. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2020.137468] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
12
|
Zhou X, Lv F, Huang Y, Liu L, Wang S. Biohybrid Conjugated Polymer Materials for Augmenting Energy Conversion of Bioelectrochemical Systems. Chemistry 2020; 26:15065-15073. [PMID: 32428308 DOI: 10.1002/chem.202002041] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Indexed: 12/22/2022]
Abstract
Bioelectrochemical systems (BESs) provide favorable opportunities for the sustainable conversion of energy from biological metabolism. Biological photovoltaics (BPVs) and microbial fuel cells (MFCs) respectively realize the conversion of renewable solar energy and bioenergy into electrical energy by utilizing electroactive biological extracellular electron transfer, however, along with this energy conversion progress, relatively poor durability and low output performance are challenges as well as opportunities. Advances in improving bio-electrode interface compatibility will help to solve the problem of insufficient performance and further have a far-reaching impact on the development of bioelectronics. Conjugated polymers (CPs) with specific optical and electrical properties (absorption and emission spectra, energy band structure and electrical conductivity) afforded by π-conjugated backbones are conducive to enhancing the electron generation and output capacity of electroactive organisms. Furthermore, the water solubility, functionality, biocompatibility and mechanical properties optimized through appropriate modification of side chain provide a more adaptive contact interface between biomaterials and electrodes. In this minireview, we summarize the prominent contributions of CPs in the aspect of augmenting the photovoltaic response of BPVs and power supply of MFCs, and specifically discussed the role of CPs with expectation to provide inspirations for the design of bioelectronic devices in the future.
Collapse
Affiliation(s)
- Xin Zhou
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Fengting Lv
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yiming Huang
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Libing Liu
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shu Wang
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| |
Collapse
|
13
|
Jeon Y, Jeon MS, Shin J, Jin S, Yi J, Kang S, Kim SC, Cho BK, Lee JK, Kim DR. 3D Printed Bioresponsive Devices with Selective Permeability Inspired by Eggshell Membrane for Effective Biochemical Conversion. ACS APPLIED MATERIALS & INTERFACES 2020; 12:30112-30119. [PMID: 32517464 DOI: 10.1021/acsami.0c06669] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Eggshell membrane has selective permeability that enables gas or liquid molecules to pass through while effectively preventing migration of microbial species. Herein, inspired by the architecture of the eggshell membrane, we employ three-dimensional (3D) printing techniques to realize bioresponsive devices with excellent selective permeability for effective biochemical conversion. The fabricated devices show 3D conductive carbon nanofiber membranes in which precultured microbial cells are controllably deployed. The resulting outcome provides excellent selective permeability between chemical and biological species, which enables acquisition of target responses generated by biological species confined within the device upon input signals. In addition, electrically conductive carbon nanofiber networks provide a platform for real-time monitoring of metabolism of microbial cells in the device. The suggested platform represents an effort to broaden microbial applications by constructing biologically programmed devices for desired responses enabled by designated deployment of engineered cells in a securely confined manner within enclosed membranes using 3D printing methods.
Collapse
Affiliation(s)
- Yale Jeon
- School of Mechanical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Min Soo Jeon
- School of Mechanical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Jongoh Shin
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Sangrak Jin
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jonghun Yi
- School of Mechanical Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Seulgi Kang
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Sun Chang Kim
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Intelligent Synthetic Biology Center, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Byung-Kwan Cho
- Department of Biological Sciences, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
- Intelligent Synthetic Biology Center, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jung-Kul Lee
- Department of Chemical Engineering, Konkuk University, Seoul 05029, Republic of Korea
| | - Dong Rip Kim
- School of Mechanical Engineering, Hanyang University, Seoul 04763, Republic of Korea
- Institute of Nano Science and Technology, Hanyang University, Seoul 04763, Republic of Korea
| |
Collapse
|
14
|
Suwara J, Lukasik B, Zurawinski R, Pawlowska R, Chworos A. Highly Fluorescent Distyrylnaphthalene Derivatives as a Tool for Visualization of Cellular Membranes. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E951. [PMID: 32093301 PMCID: PMC7078901 DOI: 10.3390/ma13040951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2020] [Revised: 02/14/2020] [Accepted: 02/15/2020] [Indexed: 11/16/2022]
Abstract
Fluorescent imaging, which is an important interdisciplinary field bridging research from organic chemistry, biochemistry and cell biology has been applied for multi-dimensional detection, visualization and characterization of biological structures and processes. Especially valuable is the possibility to monitor cellular processes in real time using fluorescent probes. In this work, conjugated oligoelectrolytes and neutral derivatives with the distyrylnaphthalene core (SN-COEs) were designed, synthetized and tested for biological properties as membrane-specific fluorescent dyes for the visualization of membrane-dependent cellular processes. The group of tested compounds includes newly synthesized distyrylnaphthalene derivatives (DSNNs): a trimethylammonium derivative (DSNN-NMe3+), a phosphonate derivative (DSNN-P), a morpholine derivative (DSNN-Mor), a dihydroxyethylamine derivative (DSNN-DEA), a phosphonate potassium salt (DSNN-POK), an amino derivative (DSNN-NH2) and pyridinium derivative (DSNN-Py+). All compounds were tested for their biological properties, including cytotoxicity and staining efficiency towards mammalian cells. The fluorescence intensity of SN-COEs incorporated into cellular structures was analyzed by fluorescence activated cell sorting (FACS) and photoluminescence spectroscopy. The cytotoxicity results have shown that all tested SN-COEs can be safely used in the human and animal cell studies. Fluorescence and confocal microscopy observations confirm that tested COEs can be applied as fluorescent probes for the visualization of intracellular membrane components in a wide range of different cell types, including adherent and suspension cells. The staining procedure may be performed under both serum free and complete medium conditions. The presented studies have revealed the interesting biological properties of SN-COEs and confirmed their applicability as dyes for staining the membranous structures of eukaryotic cells, which may be useful for visualization of wide range of biological processes dependent of the extra-/intracellular communications and/or based on the remodeling of cellular membranes.
Collapse
Affiliation(s)
| | | | | | - Roza Pawlowska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (J.S.); (B.L.); (R.Z.)
| | - Arkadiusz Chworos
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland; (J.S.); (B.L.); (R.Z.)
| |
Collapse
|
15
|
Strategies for improving the electroactivity and specific metabolic functionality of microorganisms for various microbial electrochemical technologies. Biotechnol Adv 2019; 39:107468. [PMID: 31707076 DOI: 10.1016/j.biotechadv.2019.107468] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 11/02/2019] [Accepted: 11/04/2019] [Indexed: 01/31/2023]
Abstract
Electroactive microorganisms, which possess extracellular electron transfer (EET) capabilities, are the basis of microbial electrochemical technologies (METs) such as microbial fuel and electrolysis cells. These are considered for several applications ranging from the energy-efficient treatment of waste streams to the production of value-added chemicals and fuels, bioremediation, and biosensing. Various aspects related to the microorganisms, electrodes, separators, reactor design, and operational or process parameters influence the overall functioning of METs. The most fundamental and critical performance-determining factor is, however, the microorganism-electrode interactions. Modification of the electrode surfaces and microorganisms for optimizing their interactions has therefore been the major MET research focus area over the last decade. In the case of microorganisms, primarily their EET mechanisms and efficiencies along with the biofilm formation capabilities, collectively considered as microbial electroactivity, affect their interactions with the electrodes. In addition to electroactivity, the specific metabolic or biochemical functionality of microorganisms is equally crucial to the target MET application. In this article, we present the major strategies that are used to enhance the electroactivity and specific functionality of microorganisms pertaining to both anodic and cathodic processes of METs. These include simple physical methods based on the use of heat and magnetic field along with chemical, electrochemical, and growth media amendment approaches to the complex procedure-based microbial bioaugmentation, co-culture, and cell immobilization or entrapment, and advanced toolkit-based biofilm engineering, genetic modifications, and synthetic biology strategies. We further discuss the applicability and limitations of these strategies and possible future research directions for advancing the highly promising microbial electrochemistry-driven biotechnology.
Collapse
|
16
|
Ren L, McCuskey SR, Moreland A, Bazan GC, Nguyen TQ. Tuning Geobacter sulfurreducens biofilm with conjugated polyelectrolyte for increased performance in bioelectrochemical system. Biosens Bioelectron 2019; 144:111630. [DOI: 10.1016/j.bios.2019.111630] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/17/2019] [Accepted: 08/22/2019] [Indexed: 12/12/2022]
|
17
|
Zeglio E, Rutz AL, Winkler TE, Malliaras GG, Herland A. Conjugated Polymers for Assessing and Controlling Biological Functions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806712. [PMID: 30861237 DOI: 10.1002/adma.201806712] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 01/15/2019] [Indexed: 05/20/2023]
Abstract
The field of organic bioelectronics is advancing rapidly in the development of materials and devices to precisely monitor and control biological signals. Electronics and biology can interact on multiple levels: organs, complex tissues, cells, cell membranes, proteins, and even small molecules. Compared to traditional electronic materials such as metals and inorganic semiconductors, conjugated polymers (CPs) have several key advantages for biological interactions: tunable physiochemical properties, adjustable form factors, and mixed conductivity (ionic and electronic). Herein, the use of CPs in five biologically oriented research topics, electrophysiology, tissue engineering, drug release, biosensing, and molecular bioelectronics, is discussed. In electrophysiology, implantable devices with CP coating or CP-only electrodes are showing improvements in signal performance and tissue interfaces. CP-based scaffolds supply highly favorable static or even dynamic interfaces for tissue engineering. CPs also enable delivery of drugs through a variety of mechanisms and form factors. For biosensing, CPs offer new possibilities to incorporate biological sensing elements in a conducting matrix. Molecular bioelectronics is today used to incorporate (opto)electronic functions in living tissue. Under each topic, the limits of the utility of CPs are discussed and, overall, the major challenges toward implementation of CPs and their devices to real-world applications are highlighted.
Collapse
Affiliation(s)
- Erica Zeglio
- School of Materials Science and Engineering, UNSW Sydney, Sydney, NSW, 2052, Australia
- Department of Micro and Nanosystems, KTH Royal Institute of Technology, 10044, Stockholm, Sweden
| | - Alexandra L Rutz
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Ave., Cambridge, CB3 0FA, UK
| | - Thomas E Winkler
- Department of Micro and Nanosystems, KTH Royal Institute of Technology, 10044, Stockholm, Sweden
| | - George G Malliaras
- Electrical Engineering Division, Department of Engineering, University of Cambridge, 9 JJ Thomson Ave., Cambridge, CB3 0FA, UK
| | - Anna Herland
- Department of Micro and Nanosystems, KTH Royal Institute of Technology, 10044, Stockholm, Sweden
- Swedish Medical Nanoscience Center, Department of Neuroscience, Karolinska Institute, 17177, Stockholm, Sweden
| |
Collapse
|
18
|
Wang B, Queenan BN, Wang S, Nilsson KPR, Bazan GC. Precisely Defined Conjugated Oligoelectrolytes for Biosensing and Therapeutics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1806701. [PMID: 30698856 DOI: 10.1002/adma.201806701] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/25/2018] [Indexed: 06/09/2023]
Abstract
Conjugated oligoelectrolytes (COEs) are a relatively new class of synthetic organic molecules with, as of yet, untapped potential for use in organic optoelectronic devices and bioelectronic systems. COEs also offer a novel molecular approach to biosensing, bioimaging, and disease therapy. Substantial progress has been made in the past decade at the intersection of chemistry, materials science, and the biological sciences developing COEs and their polymer analogues, namely, conjugated polyelectrolytes (CPEs), into synthetic systems with biological and biomedical utility. CPEs have traditionally attracted more attention in arenas of sensing, imaging, and therapy. However, the precisely defined molecular structures and interactions of COEs offer potential key advantages over CPEs, including higher reliability and fluorescence quantum efficiency, larger diversity of subcellular targeting strategies, and improved selectivity to biomolecules. Here, the unique-and sometimes overlooked-properties of COEs are discussed and the noticeable progress in their use for biological sensing, imaging, and therapy is reviewed.
Collapse
Affiliation(s)
- Bing Wang
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Bridget N Queenan
- Department of Mechanical Engineering, Neuroscience Research Institute, University of California, Santa Barbara, CA, 93106, USA
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - K Peter R Nilsson
- Division of Chemistry, Department of Physics, Chemistry and Biology, Linköping University, Linköping, SE, -581 83, Sweden
| | - Guillermo C Bazan
- Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| |
Collapse
|
19
|
Zhou C, Chia GWN, Ho JCS, Moreland AS, Seviour T, Liedberg B, Parikh AN, Kjelleberg S, Hinks J, Bazan GC. A Chain-Elongated Oligophenylenevinylene Electrolyte Increases Microbial Membrane Stability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1808021. [PMID: 30908801 DOI: 10.1002/adma.201808021] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 02/18/2019] [Indexed: 06/09/2023]
Abstract
A novel conjugated oligoelectrolyte (COE) material, named S6, is designed to have a lipid-bilayer stabilizing topology afforded by an extended oligophenylenevinylene backbone. S6 intercalates biological membranes acting as a hydrophobic support for glycerophospholipid acyl chains. Indeed, Escherichia coli treated with S6 exhibits a twofold improvement in butanol tolerance, a relevant feature to achieve within the general context of modifying microorganisms used in biofuel production. Filamentous growth, a morphological stress response to butanol toxicity in E. coli, is observed in untreated cells after incubation with 0.9% butanol (v/v), but is mitigated by S6 treatment. Real-time fluorescence imaging using giant unilamellar vesicles reveals the extent to which S6 counters membrane instability. Moreover, S6 also reduces butanol-induced lipopolysaccharide release from the outer membrane to further maintain cell integrity. These findings highlight a deliberate effort in the molecular design of a chain-elongated COE to stabilize microbial membranes against environmental challenges.
Collapse
Affiliation(s)
- Cheng Zhou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Geraldine W N Chia
- Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Interdisciplinary Graduate School, Nanyang Technological University, Singapore, 639798, Singapore
| | - James C S Ho
- Centre for Biomimetic Sensor Science, School of Materials Science & Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Alex S Moreland
- Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, University of California, Santa Barbara, CA, 93106, USA
| | - Thomas Seviour
- Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Bo Liedberg
- Interdisciplinary Graduate School, Nanyang Technological University, Singapore, 639798, Singapore
- Centre for Biomimetic Sensor Science, School of Materials Science & Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Atul N Parikh
- Centre for Biomimetic Sensor Science, School of Materials Science & Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Department of Chemistry, Chemical Engineering, Biomedical Engineering,, and Materials Science & Engineering, University of California, Davis, CA, 95616, USA
| | - Staffan Kjelleberg
- Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Jamie Hinks
- Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Guillermo C Bazan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore, 639798, Singapore
- Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, University of California, Santa Barbara, CA, 93106, USA
| |
Collapse
|
20
|
Nanomaterials for facilitating microbial extracellular electron transfer: Recent progress and challenges. Bioelectrochemistry 2018; 123:190-200. [DOI: 10.1016/j.bioelechem.2018.05.005] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 05/03/2018] [Accepted: 05/03/2018] [Indexed: 11/23/2022]
|
21
|
Zou L, Qiao Y, Li CM. Boosting Microbial Electrocatalytic Kinetics for High Power Density: Insights into Synthetic Biology and Advanced Nanoscience. ELECTROCHEM ENERGY R 2018. [DOI: 10.1007/s41918-018-0020-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
22
|
Goenka R, Mukherji S, Ghosh PC. Characterization of electrochemical behaviour of Escherichia coli MTCC 1610 in a microbial fuel cell. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.biteb.2018.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
23
|
Guan LZ, Zhao L, Wan YJ, Tang LC. Three-dimensional graphene-based polymer nanocomposites: preparation, properties and applications. NANOSCALE 2018; 10:14788-14811. [PMID: 30052244 DOI: 10.1039/c8nr03044h] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Motivated by the unique structure and outstanding properties of graphene, three-dimensional (3D) graphene-based polymer nanocomposites (3D-GPNCs) are considered as new generation materials for various multi-functional applications. This review presents an overview of the preparation, properties and applications of 3D-GPNCs. Three main approaches for fabricating 3D-GPNCs, namely 3D graphene based template, polymer particle/foam template, and organic molecule cross-linked graphene, are introduced. A thorough investigation and comparison of the mechanical, electrical and thermal properties of 3D-GPNCs are performed and discussed to understand their structure-property relationship. Various potential applications of 3D-GPNCs, including energy storage and conversion, electromagnetic interference shielding, oil/water separation, and sensors, are reviewed. Finally, the current challenges and outlook of these emerging 3D-GPNC materials are also discussed.
Collapse
Affiliation(s)
- Li-Zhi Guan
- Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121 Zhejiang, PR China.
| | | | | | | |
Collapse
|
24
|
Limwongyut J, Liu Y, Chilambi GS, Seviour T, Hinks J, Mu Y, Bazan GC. Interactions of a paracyclophane-based conjugated oligoelectrolyte with biological membranes. RSC Adv 2018; 8:39849-39853. [PMID: 35558200 PMCID: PMC9091243 DOI: 10.1039/c8ra08069k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 11/14/2018] [Indexed: 11/21/2022] Open
Abstract
We report a non-planar conjugated oligoelectrolyte as a membrane permeabilizing material and its membrane interactions compared to the linear analog.
Collapse
Affiliation(s)
- Jakkarin Limwongyut
- Center for Polymers and Organic Solids
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- USA
| | - Yang Liu
- School of Biological Sciences
- Nanyang Technological University
- Singapore
| | - Gayatri Shankar Chilambi
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE)
- Nanyang Technological University
- Singapore
| | - Thomas Seviour
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE)
- Nanyang Technological University
- Singapore
| | - Jamie Hinks
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE)
- Nanyang Technological University
- Singapore
| | - Yuguang Mu
- School of Biological Sciences
- Nanyang Technological University
- Singapore
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- USA
| |
Collapse
|
25
|
Seviour TW, Hinks J. Bucking the current trend in bioelectrochemical systems: a case for bioelectroanalytics. Crit Rev Biotechnol 2017; 38:634-646. [DOI: 10.1080/07388551.2017.1380599] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Thomas William Seviour
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - Jamie Hinks
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| |
Collapse
|
26
|
Milczarek J, Pawlowska R, Zurawinski R, Lukasik B, Garner LE, Chworos A. Fluorescence and confocal imaging of mammalian cells using conjugated oligoelectrolytes with phenylenevinylene core. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2017; 170:40-48. [PMID: 28388462 DOI: 10.1016/j.jphotobiol.2017.03.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2016] [Accepted: 03/25/2017] [Indexed: 01/10/2023]
Affiliation(s)
- Justyna Milczarek
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Remigiusz Zurawinski
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Beata Lukasik
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland
| | - Logan E Garner
- National Renewable Energy Laboratory, 15013 Denver W Pkwy, Golden, CO 80401, USA
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Lodz, Poland.
| |
Collapse
|
27
|
|
28
|
Kirchhofer ND, Rengert ZD, Dahlquist FW, Nguyen TQ, Bazan GC. A Ferrocene-Based Conjugated Oligoelectrolyte Catalyzes Bacterial Electrode Respiration. Chem 2017. [DOI: 10.1016/j.chempr.2017.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
29
|
Li S, Cheng C, Thomas A. Carbon-Based Microbial-Fuel-Cell Electrodes: From Conductive Supports to Active Catalysts. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1602547. [PMID: 27991684 DOI: 10.1002/adma.201602547] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Revised: 09/08/2016] [Indexed: 06/06/2023]
Abstract
Microbial fuel cells (MFCs) have attracted considerable interest due to their potential in renewable electrical power generation using the broad diversity of biomass and organic substrates. However, the difficulties in achieving high power densities and commercially affordable electrode materials have limited their industrial applications to date. Carbon materials, which can exhibit a wide range of different morphologies and structures, usually possess physiological activity to interact with microorganisms and are therefore fast-emerging electrode materials. As the anode, carbon materials can significantly promote interfacial microbial colonization and accelerate the formation of extracellular biofilms, which eventually promotes the electrical power density by providing a conductive microenvironment for extracellular electron transfer. As the cathode, carbon-based materials can function as catalysts for the oxygen-reduction reaction, showing satisfying activities and efficiencies nowadays even reaching the performance of Pt catalysts. Here, first, recent advancements on the design of carbon materials for anodes in MFCs are summarized, and the influence of structure and surface functionalization of different types of carbon materials on microorganism immobilization and electrochemical performance is elucidated. Then, synthetic strategies and structures of typical carbon-based cathodes in MFCs are briefly presented. Furthermore, future applications of carbon-electrode-based MFC devices in the energy, environmental, and biological fields are discussed, and the emerging challenges in transferring them from laboratory to industrial scale are described.
Collapse
Affiliation(s)
- Shuang Li
- Functional Materials, Department of Chemistry, Technische Universität Berlin, Hardenbergstr. 40, 10623, Berlin, Germany
| | - Chong Cheng
- Department of Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195, Berlin, Germany
| | - Arne Thomas
- Functional Materials, Department of Chemistry, Technische Universität Berlin, Hardenbergstr. 40, 10623, Berlin, Germany
| |
Collapse
|
30
|
Yuan H, Xing C, Fan Y, Chai R, Niu R, Zhan Y, Peng F, Qi J. Carbon Dioxide-Controlled Assembly of Water-Soluble Conjugated Polymers Catalyzed by Carbonic Anhydrase. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201600726] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Indexed: 12/19/2022]
Affiliation(s)
- Hongbo Yuan
- School of Materials Science and Engineering; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Chengfen Xing
- School of Materials Science and Engineering; Hebei University of Technology; Tianjin 300401 P. R. China
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Yibing Fan
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Ran Chai
- School of Materials Science and Engineering; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Ruimin Niu
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Yong Zhan
- School of Materials Science and Engineering; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Fei Peng
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P. R. China
| | - Junjie Qi
- Key Laboratory of Hebei Province for Molecular Biophysics; Institute of Biophysics; Hebei University of Technology; Tianjin 300401 P. R. China
| |
Collapse
|
31
|
Zhao CE, Gai P, Song R, Chen Y, Zhang J, Zhu JJ. Nanostructured material-based biofuel cells: recent advances and future prospects. Chem Soc Rev 2017; 46:1545-1564. [DOI: 10.1039/c6cs00044d] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The review provides comprehensive discussions about electrode materials of BFCs and prospects of this technology for real-word applications.
Collapse
Affiliation(s)
- Cui-e Zhao
- State key Laboratory of Analytical Chemistry for Life Science
- Collaborative Innovation of Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Panpan Gai
- State key Laboratory of Analytical Chemistry for Life Science
- Collaborative Innovation of Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Rongbin Song
- State key Laboratory of Analytical Chemistry for Life Science
- Collaborative Innovation of Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Ying Chen
- State key Laboratory of Analytical Chemistry for Life Science
- Collaborative Innovation of Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jianrong Zhang
- State key Laboratory of Analytical Chemistry for Life Science
- Collaborative Innovation of Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| | - Jun-Jie Zhu
- State key Laboratory of Analytical Chemistry for Life Science
- Collaborative Innovation of Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210093
| |
Collapse
|
32
|
Łukasik B, Milczarek J, Pawlowska R, Żurawiński R, Chworos A. Facile synthesis of fluorescent distyrylnaphthalene derivatives for bioapplications. NEW J CHEM 2017. [DOI: 10.1039/c7nj00004a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthesis of a novel type of distyrylnaphthalene derivative and their application as molecular fluorescent probes for bioimaging.
Collapse
Affiliation(s)
- Beata Łukasik
- Department of Heteroorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Justyna Milczarek
- Department of Bioorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Roza Pawlowska
- Department of Bioorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Remigiusz Żurawiński
- Department of Heteroorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| | - Arkadiusz Chworos
- Department of Bioorganic Chemistry
- The Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Łódź
- Poland
| |
Collapse
|
33
|
Cheng Q, Call DF. Hardwiring microbes via direct interspecies electron transfer: mechanisms and applications. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2016; 18:968-80. [PMID: 27349520 DOI: 10.1039/c6em00219f] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Multicellular microbial communities are important catalysts in engineered systems designed to treat wastewater, remediate contaminated sediments, and produce energy from biomass. Understanding the interspecies interactions within them is therefore essential to design effective processes. The flow of electrons within these communities is especially important in the determination of reaction possibilities (thermodynamics) and rates (kinetics). Conventional models of electron transfer incorporate the diffusion of metabolites generated by one organism and consumed by a second, frequently referred to as mediated interspecies electron transfer (MIET). Evidence has emerged in the last decade that another method, called direct interspecies electron transfer (DIET), may occur between organisms or in conjunction with electrically conductive materials. Recent research has suggested that DIET can be stimulated in engineered systems to improve desired treatment goals and energy recovery in systems such as anaerobic digesters and microbial electrochemical technologies. In this review, we summarize the latest understanding of DIET mechanisms, the associated microorganisms, and the underlying thermodynamics. We also critically examine approaches to stimulate DIET in engineered systems and assess their effectiveness. We find that in most cases attempts to promote DIET in mixed culture systems do not yield the improvements expected based on defined culture studies. Uncertainties of other processes that may be co-occurring in real systems, such as contaminant sorption and biofilm promotion, need to be further investigated. We conclude by identifying areas of future research related to DIET and its application in biological treatment processes.
Collapse
Affiliation(s)
- Qiwen Cheng
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Campus Box 7908, Raleigh, NC 27695, USA.
| | - Douglas F Call
- Department of Civil, Construction, and Environmental Engineering, North Carolina State University, Campus Box 7908, Raleigh, NC 27695, USA.
| |
Collapse
|
34
|
Yan H, Rengert ZD, Thomas AW, Rehermann C, Hinks J, Bazan GC. Influence of molecular structure on the antimicrobial function of phenylenevinylene conjugated oligoelectrolytes. Chem Sci 2016; 7:5714-5722. [PMID: 30034711 PMCID: PMC6021957 DOI: 10.1039/c6sc00630b] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 05/28/2016] [Indexed: 01/08/2023] Open
Abstract
Structure/property relationships were obtained to understand the antimicrobial function of conjugated oligoelectrolytes toward Gram-negative and Gram-positive bacteria.
Conjugated oligoelectrolytes (COEs) with phenylenevinylene (PV) repeat units are known to spontaneously intercalate into cell membranes. Twelve COEs, including seven structures reported here for the first time, were investigated for the relationship between their membrane disrupting properties and structural modifications, including the length of the PV backbone and the presence of either a tetraalkylammonium or a pyridinium ionic pendant group. Optical characteristics and interactions with cell membranes were determined using UV-Vis absorption and photoluminescence spectroscopies, and confocal microscopy. Toxicity tests on representative Gram-positive (Enterococcus faecalis) and Gram-negative (Escherichia coli) bacteria reveal generally greater toxicity to E. faecalis than to E. coli and indicate that shorter molecules have superior antimicrobial activity. Increased antimicrobial potency was observed in three-ring COEs appended with pyridinium ionic groups but not with COEs with four or five PV repeat units. Studies with mutants having cell envelope modifications indicate a possible charge based interaction with pyridinium-appended compounds. Fluorine substitutions on COE backbones result in structures that are less toxic to E. coli, while the addition of benzothiadiazole to COE backbones has no effect on increasing antimicrobial function. A weakly membrane-intercalating COE with only two PV repeat units allowed us to determine the synthetic limitations as a result of competition between solubility in aqueous media and association with cell membranes. We describe, for the first time, the most membrane disrupting structure achievable within two homologous series of COEs and that around a critical three-ring backbone length, structural modifications have the most effect on antimicrobial activity.
Collapse
Affiliation(s)
- Hengjing Yan
- Department of Chemistry and Biochemistry , Center for Polymers and Organic Solids , University of California Santa Barbara , Santa Barbara , CA , USA .
| | - Zachary D Rengert
- Department of Chemistry and Biochemistry , Center for Polymers and Organic Solids , University of California Santa Barbara , Santa Barbara , CA , USA .
| | - Alexander W Thomas
- Department of Chemistry and Biochemistry , Center for Polymers and Organic Solids , University of California Santa Barbara , Santa Barbara , CA , USA .
| | - Carolin Rehermann
- Department of Chemistry , Ludwig-Maximilians-Universität München , Germany
| | - Jamie Hinks
- Singapore Centre for Environmental Life Sciences Engineering , Nanyang Technological University , Singapore .
| | - Guillermo C Bazan
- Department of Chemistry and Biochemistry , Center for Polymers and Organic Solids , University of California Santa Barbara , Santa Barbara , CA , USA . .,Department of Materials , University of California Santa Barbara , Santa Barbara , CA , USA
| |
Collapse
|
35
|
Wang W, You S, Gong X, Qi D, Chandran BK, Bi L, Cui F, Chen X. Bioinspired Nanosucker Array for Enhancing Bioelectricity Generation in Microbial Fuel Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:270-275. [PMID: 26550771 DOI: 10.1002/adma.201503609] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2015] [Revised: 09/13/2015] [Indexed: 06/05/2023]
Abstract
A bioinspired active anode with a suction effect is demonstrated for microbial fuel cells by constructing polypyrrole (PPy) nanotubular arrays on carbon textiles. The oxygen in the inner space of the nanosucker can be depleted by micro-organisms with the capability of facul-tative respiration, forming a vacuum, which then activates the electrode to draw the microorganism by suction and thus improve the bioelectricity generation.
Collapse
Affiliation(s)
- Wei Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, P. R. China
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Shijie You
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, P. R. China
| | - Xiaobo Gong
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, P. R. China
| | - Dianpeng Qi
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Bevita K Chandran
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| | - Lanpo Bi
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, P. R. China
| | - Fuyi Cui
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, P. R. China
| | - Xiaodong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 639798, Singapore
| |
Collapse
|
36
|
Catania C, Ajo-Franklin C, Bazan GC. Membrane permeabilization by conjugated oligoelectrolytes accelerates whole-cell catalysis. RSC Adv 2016. [DOI: 10.1039/c6ra23083k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Conjugated oligoelectrolytes (COE) increase outer membrane permeability inEscherichia coli,improve transport of small molecules through the cell envelope and thus accelerate whole-cell catalysis.
Collapse
Affiliation(s)
- Chelsea Catania
- Materials Department
- University of California
- Santa Barbara 93106
- USA
| | - Caroline M. Ajo-Franklin
- Physical Biosciences Division
- Materials Science Division and Synthetic Biology Institute
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Guillermo C. Bazan
- Center for Polymers and Organic Solids
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara 93106
- USA
| |
Collapse
|
37
|
Catania C, Thomas AW, Bazan GC. Tuning cell surface charge in E. coli with conjugated oligoelectrolytes. Chem Sci 2015; 7:2023-2029. [PMID: 29899927 PMCID: PMC5968544 DOI: 10.1039/c5sc03046c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 11/29/2015] [Indexed: 12/28/2022] Open
Abstract
Conjugated oligoelectrolytes intercalate into and associate with membranes, thereby changing the surface charge of microbes, as determined by zeta potential measurements.
Cationic conjugated oligoelectrolytes (COEs) varying in length and structural features are compared with respect to their association with E. coli and their effect on cell surface charge as determined by zeta potential measurements. Regardless of structural features, at high staining concentrations COEs with longer molecular dimensions associate less, but neutralize the negative surface charge of E. coli to a greater degree than shorter COEs.
Collapse
Affiliation(s)
- Chelsea Catania
- Materials Department , University of California , Santa Barbara , CA 93106 , USA
| | - Alexander W Thomas
- Center for Polymers and Organic Solids , Department of Chemistry and Biochemistry , University of California , Santa Barbara , CA 93106 , USA .
| | - Guillermo C Bazan
- Materials Department , University of California , Santa Barbara , CA 93106 , USA.,Center for Polymers and Organic Solids , Department of Chemistry and Biochemistry , University of California , Santa Barbara , CA 93106 , USA .
| |
Collapse
|
38
|
Liu J, Hou H, Chen X, Bazan GC, Kashima H, Logan BE. Conjugated oligoelectrolyte represses hydrogen oxidation by Geobacter sulfurreducens in microbial electrolysis cells. Bioelectrochemistry 2015; 106:379-82. [DOI: 10.1016/j.bioelechem.2015.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Revised: 06/27/2015] [Accepted: 07/08/2015] [Indexed: 11/28/2022]
|
39
|
Zhao S, Li Y, Yin H, Liu Z, Luan E, Zhao F, Tang Z, Liu S. Three-dimensional graphene/Pt nanoparticle composites as freestanding anode for enhancing performance of microbial fuel cells. SCIENCE ADVANCES 2015; 1:e1500372. [PMID: 26702430 PMCID: PMC4681333 DOI: 10.1126/sciadv.1500372] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 09/01/2015] [Indexed: 05/27/2023]
Abstract
Microbial fuel cells (MFCs) are able to directly convert about 50 to 90% of energy from oxidation of organic matters in waste to electricity and have great potential application in broad fields such as wastewater treatment. Unfortunately, the power density of the MFCs at present is significantly lower than the theoretical value because of technical limitations including low bacteria loading capacity and difficult electron transfer between the bacteria and the electrode. We reported a three-dimensional (3D) graphene aerogel (GA) decorated with platinum nanoparticles (Pt NPs) as an efficient freestanding anode for MFCs. The 3D GA/Pt-based anode has a continuous 3D macroporous structure that is favorable for microorganism immobilization and efficient electrolyte transport. Moreover, GA scaffold is homogenously decorated with Pt NPs to further enhance extracellular charge transfer between the bacteria and the anode. The MFCs constructed with 3D GA/Pt-based anode generate a remarkable maximum power density of 1460 mW/m(2), 5.3 times higher than that based on carbon cloth (273 mW/m(2)). It deserves to be stressed that 1460 mW/m(2) obtained from the GA/Pt anode shows the superior performance among all the reported MFCs inoculated with Shewanella oneidensis MR-1. Moreover, as a demonstration of the real application, the MFC equipped with the freestanding GA/Pt anode has been successfully applied in driving timer for the first time, which opens the avenue toward the real application of the MFCs.
Collapse
Affiliation(s)
- Shenlong Zhao
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150080, China
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Yuchen Li
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150080, China
| | - Huajie Yin
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Zhouzhou Liu
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150080, China
| | - Enxiao Luan
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150080, China
| | - Feng Zhao
- Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
| | - Zhiyong Tang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Shaoqin Liu
- State Key Laboratory of Urban Water Resource and Environment (Harbin Institute of Technology), Harbin 150080, China
| |
Collapse
|
40
|
Hinks J, Wang Y, Matysik A, Kraut R, Kjelleberg S, Mu Y, Bazan GC, Wuertz S, Seviour T. Increased Microbial Butanol Tolerance by Exogenous Membrane Insertion Molecules. CHEMSUSCHEM 2015; 8:3718-3726. [PMID: 26404512 DOI: 10.1002/cssc.201500194] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2015] [Revised: 07/13/2015] [Indexed: 06/05/2023]
Abstract
Butanol is an ideal biofuel, although poor titers lead to high recovery costs by distillation. Fluidization of microbial membranes by butanol is one of the major factors limiting titers in butanol-producing bioprocesses. Starting with the hypothesis that certain membrane insertion molecules would stabilize the lipid bilayer in the presence of butanol, we applied a combination of in vivo and in vitro techniques within an in silico framework to describe a new approach to achieve solvent tolerance in bacteria. Single-molecule tracking of a model supported bilayer showed that COE1-5C, a five-ringed oligo-polyphenylenevinylene conjugated oligoelectrolyte (COE), reduced the diffusion rate of phospholipids in a microbially derived lipid bilayer to a greater extent than three-ringed and four-ringed COEs. Furthermore, COE1-5C treatment increased the specific growth rate of E. coli K12 relative to a control at inhibitory butanol concentrations. Consequently, to confer butanol tolerance to microbes by exogenous means is complementary to genetic modification of strains in industrial bioprocesses, extends the physiological range of microbes to match favorable bioprocess conditions, and is amenable with complex and undefined microbial consortia for biobutanol production. Molecular dynamics simulations indicated that the π-conjugated aromatic backbone of COE1-5C likely acts as a hydrophobic tether for glycerophospholipid acyl chains by enhancing bilayer integrity in the presence of high butanol concentrations, which thereby counters membrane fluidization. COE1-5C-mitigated E. coli K12 membrane depolarization by butanol is consistent with the hypothesis that improved growth rates in the presence of butanol are a consequence of improved bilayer stability.
Collapse
Affiliation(s)
- Jamie Hinks
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, 637551, Singapore.
| | - Yaofeng Wang
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Artur Matysik
- Division of Molecular Genetics and Cell Biology, School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Rachel Kraut
- Division of Molecular Genetics and Cell Biology, School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Staffan Kjelleberg
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, 637551, Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
- Centre for Marine BioInnovation and School of Biotechnology and Bimolecular Sciences, University of New South Wales, Sydney, 2052, Australia
| | - Yuguang Mu
- School of Biological Sciences, Nanyang Technological University, Singapore, 637551, Singapore
| | - Guillermo C Bazan
- Department of Chemistry & Biochemistry and Materials, Center for Polymers and Organic Solids, University of California, Santa Barbara, California, 93106, USA
| | - Stefan Wuertz
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, 637551, Singapore
- Department of Civil and Environmental Engineering, University of California, Davis, California, 95616, USA
| | - Thomas Seviour
- Singapore Centre for Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, 637551, Singapore.
| |
Collapse
|
41
|
Ngaw CK, Wang VB, Liu Z, Zhou Y, Kjelleberg S, Zhang Q, Tan TTY, Loo SCJ. Enhancement in hydrogen evolution using Au-TiO 2 hollow spheres with microbial devices modified with conjugated oligoelectrolytes. NPJ Biofilms Microbiomes 2015; 1:15020. [PMID: 28721235 PMCID: PMC5515218 DOI: 10.1038/npjbiofilms.2015.20] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 08/16/2015] [Accepted: 08/20/2015] [Indexed: 11/15/2022] Open
Abstract
Objective: Although photoelectrochemical (PEC) water splitting heralds the emergence of the hydrogen economy, the need for external bias and low efficiency stymies the widespread application of this technology. By coupling water splitting (in a PEC cell) to a microbial fuel cell (MFC) using Escherichia coli as the biocatalyst, this work aims to successfully demonstrate a sustainable hybrid PEC–MFC platform functioning solely by biocatalysis and solar energy, at zero bias. Through further chemical modification of the photo-anode (in the PEC cell) and biofilm (in the MFC), the performance of the hybrid system is expected to improve in terms of the photocurrent generated and hydrogen evolved. Methods: The hybrid system constitutes the interconnected PEC cell with the MFC. Both PEC cell and MFC are typical two-chambered systems housing the anode and cathode. Au-TiO2 hollow spheres and conjugated oligoelectrolytes were synthesised chemically and introduced to the PEC cell and MFC, respectively. Hydrogen evolution measurements were performed in triplicates. Results: The hybrid PEC–MFC platform generated a photocurrent density of 0.35 mA/cm2 (~70× enhancement) as compared with the stand-alone P25 standard PEC cell (0.005 mA/cm2) under one-sun illumination (100 mW/cm2) at zero bias (0 V vs. Pt). This increase in photocurrent density was accompanied by continuous H2 production. No H2 was observed in the P25 standard PEC cell whereas H2 evolution rate was ~3.4 μmol/h in the hybrid system. The remarkable performance is attributed to the chemical modification of E. coli through the incorporation of novel conjugated oligoelectrolytes in the MFC as well as the lower recombination rate and higher photoabsorption capabilities in the Au-TiO2 hollow spheres electrode. Conclusions: The combined strategy of photo-anode modification in PEC cells and chemically modified MFCs shows great promise for future exploitation of such synergistic effects between MFCs and semiconductor-based PEC water splitting.
Collapse
Affiliation(s)
- Chee Keong Ngaw
- Energy Research Institute @ NTU (ERI@N), Interdisciplinary Graduate School, Nanyang Technological University, Singapore, Singapore.,Solar Fuels Laboratory, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore.,Solar Fuels Laboratory, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Victor Bochuan Wang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.,Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - Zhengyi Liu
- Solar Fuels Laboratory, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Yi Zhou
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Staffan Kjelleberg
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore.,School of Biotechnology and Biomolecular Sciences and Centre for Marine Bio-Innovation, The University of New South Wales, Sydney, New South Wales, Australia
| | - Qichun Zhang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Timothy Thatt Yang Tan
- Solar Fuels Laboratory, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Say Chye Joachim Loo
- Solar Fuels Laboratory, School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.,School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore.,Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| |
Collapse
|
42
|
Zhao CE, Chen J, Ding Y, Wang VB, Bao B, Kjelleberg S, Cao B, Loo SCJ, Wang L, Huang W, Zhang Q. Chemically Functionalized Conjugated Oligoelectrolyte Nanoparticles for Enhancement of Current Generation in Microbial Fuel Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14501-14505. [PMID: 26079170 DOI: 10.1021/acsami.5b03990] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Water-soluble conjugated oligoelectrolyte nanoparticles (COE NPs), consisting of a cage-like polyhedral oligomeric silsesquioxanes (POSS) core equipped at each end with pendant groups (oligo(p-phenylenevinylene) electrolyte, OPVE), have been designed and demonstrated as an efficient strategy in increasing the current generation in Escherichia coli microbial fuel cells (MFCs). The as-prepared COE NPs take advantage of the structure of POSS and the optical properties of the pendant groups, OPVE. Confocal laser scanning microscopy showed strong photoluminescence of the stained cells, indicating spontaneous accumulation of COE NPs within cell membranes. Moreover, the electrochemical performance of the COE NPs is superior to that of an established membrane intercommunicating COE, DSSN+ in increasing current generation, suggesting that these COE NPs thus hold great potential to boost the performance of MFCs.
Collapse
Affiliation(s)
- Cui-e Zhao
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Jia Chen
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Yuanzhao Ding
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | - Victor Bochuan Wang
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | | | - Staffan Kjelleberg
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
- ∥School of Biotechnology and Biomolecular Sciences and Centre for Marine Bio-innovation, The University of New South Wales, Sydney New South Wales 2052, Australia
| | - Bin Cao
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
- ⊥School of Civil and Environmental Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | - Say Chye Joachim Loo
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- §Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551, Singapore
| | | | | | - Qichun Zhang
- †School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- ∇Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| |
Collapse
|
43
|
Gwozdzinska P, Pawlowska R, Milczarek J, Garner LE, Thomas AW, Bazan GC, Chworos A. Phenylenevinylene conjugated oligoelectrolytes as fluorescent dyes for mammalian cell imaging. Chem Commun (Camb) 2015; 50:14859-61. [PMID: 25322778 DOI: 10.1039/c4cc06478j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Conjugated phenylenevinylene oligoelectrolytes, which consist of a phenylenevinylene core equipped at each end with hydrophilic pendent groups, are shown to be good candidates for mammalian cell membrane staining. When used in the micromolar concentration range, they express low to moderate cell toxicity for selected regular and cancerous cell lines as tested for adherent and suspension cells.
Collapse
Affiliation(s)
- Paulina Gwozdzinska
- Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90363 Lodz, Poland.
| | | | | | | | | | | | | |
Collapse
|
44
|
Johansson PK, Jullesson D, Elfwing A, Liin SI, Musumeci C, Zeglio E, Elinder F, Solin N, Inganäs O. Electronic polymers in lipid membranes. Sci Rep 2015; 5:11242. [PMID: 26059023 PMCID: PMC4462020 DOI: 10.1038/srep11242] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 05/14/2015] [Indexed: 12/26/2022] Open
Abstract
Electrical interfaces between biological cells and man-made electrical devices exist in many forms, but it remains a challenge to bridge the different mechanical and chemical environments of electronic conductors (metals, semiconductors) and biosystems. Here we demonstrate soft electrical interfaces, by integrating the metallic polymer PEDOT-S into lipid membranes. By preparing complexes between alkyl-ammonium salts and PEDOT-S we were able to integrate PEDOT-S into both liposomes and in lipid bilayers on solid surfaces. This is a step towards efficient electronic conduction within lipid membranes. We also demonstrate that the PEDOT-S@alkyl-ammonium:lipid hybrid structures created in this work affect ion channels in the membrane of Xenopus oocytes, which shows the possibility to access and control cell membrane structures with conductive polyelectrolytes.
Collapse
Affiliation(s)
- Patrik K. Johansson
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
- Current address: National ESCA Surface Analysis Center for Biomedical Problems, Department of Bioengineering, University of Washington, Seattle, WA, US-98195, United States
| | - David Jullesson
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
- Current address: Systems and Synthetic Biology, Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-41296, Gothenburg, Sweden
| | - Anders Elfwing
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
| | - Sara I. Liin
- Department of Clinical and Experimental Medicine, Linköping University, SE-58185, Linköping, Sweden
| | - Chiara Musumeci
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
| | - Erica Zeglio
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
| | - Fredrik Elinder
- Department of Clinical and Experimental Medicine, Linköping University, SE-58185, Linköping, Sweden
| | - Niclas Solin
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
| | - Olle Inganäs
- Biomolecular and Organic Electronics, Department of Physics Chemistry and Biology, Linköping University, SE-58183, Linköping, Sweden
| |
Collapse
|
45
|
Yan H, Catania C, Bazan GC. Membrane-intercalating conjugated oligoelectrolytes: impact on bioelectrochemical systems. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:2958-2973. [PMID: 25846107 DOI: 10.1002/adma.201500487] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 06/04/2023]
Abstract
Conjugated oligoelectrolytes (COEs), molecules that are defined by a π-delocalized backbone and terminal ionic pendant groups, have been previously demonstrated to effectively reduce charge-injection/extraction barriers at metal/organic interfaces in thin-film organic-electronic devices. Recent studies demonstrate a spontaneous affinity of certain COEs to intercalate into, and align within, lipid bilayers in an ordered orientation, thereby allowing modification of membrane properties and the functions of microbes in bioelectrochemical and photosynthetic systems. Several reports have provided evidence of enhanced current generation and bioproduction. Mechanistic approaches suggest that COEs influence microbial extracellular electron transport to abiotic electrode surfaces via more than one proposed pathway, including direct electron transfer and meditated electron transfer. Molecular dynamics simulations as a function of molecular structure suggest that insertion of cationic COEs results in membrane thinning as the lipid phosphate head groups are drawn toward the center of the bilayer. Since variations in molecular structures, especially the length of the conjugated backbone, distribution of ionic groups, and hydrophobic substitutions, show an effect on their antimicrobial properties, preferential cell localization, and microbial selection, it is promising to further design novel membrane-intercalating molecules based on COEs for practical applications, including energy generation, environmental remediation, and antimicrobial treatment.
Collapse
Affiliation(s)
- Hengjing Yan
- Department of Chemistry and Biochemistry, Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Chelsea Catania
- Department of Materials, University of California at Santa Barbara, Santa Barbara, CA, 93106, USA
| | - Guillermo C Bazan
- Department of Chemistry and Biochemistry, Center for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara, CA, 93106, USA
- Department of Materials, University of California at Santa Barbara, Santa Barbara, CA, 93106, USA
- King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
46
|
Hinks J, Poh WH, Chu JJH, Loo JSC, Bazan GC, Hancock LE, Wuertz S. Oligopolyphenylenevinylene-conjugated oligoelectrolyte membrane insertion molecules selectively disrupt cell envelopes of Gram-positive bacteria. Appl Environ Microbiol 2015; 81:1949-58. [PMID: 25576607 PMCID: PMC4345381 DOI: 10.1128/aem.03355-14] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 12/26/2014] [Indexed: 12/11/2022] Open
Abstract
The modification of microbial membranes to achieve biotechnological strain improvement with exogenous small molecules, such as oligopolyphenylenevinylene-conjugated oligoelectrolyte (OPV-COE) membrane insertion molecules (MIMs), is an emerging biotechnological field. Little is known about the interactions of OPV-COEs with their target, the bacterial envelope. We studied the toxicity of three previously reported OPV-COEs with a selection of Gram-negative and Gram-positive organisms and demonstrated that Gram-positive bacteria are more sensitive to OPV-COEs than Gram-negative bacteria. Transmission electron microscopy demonstrated that these MIMs disrupt microbial membranes and that this occurred to a much greater degree in Gram-positive organisms. We used a number of mutants to probe the nature of MIM interactions with the microbial envelope but were unable to align the membrane perturbation effects of these compounds to previously reported membrane disruption mechanisms of, for example, cationic antimicrobial peptides. Instead, the data support the notion that OPV-COEs disrupt microbial membranes through a suspected interaction with diphosphatidylglycerol (DPG), a major component of Gram-positive membranes. The integrity of model membranes containing elevated amounts of DPG was disrupted to a greater extent by MIMs than those prepared from Escherichia coli total lipid extracts alone.
Collapse
Affiliation(s)
- Jamie Hinks
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - Wee Han Poh
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore
| | - Justin Jang Hann Chu
- Laboratory of Molecular RNA Virology and Antiviral Strategies, Department of Microbiology, Yong Loo Lin School of Medicine, National University Health System, National University of Singapore, Singapore, Singapore
| | - Joachim Say Chye Loo
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore School of Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Guillermo C Bazan
- Department of Chemistry & Biochemistry and Materials, Center for Polymers and Organic Solids, University of California, Santa Barbara, California, USA
| | - Lynn E Hancock
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas, USA
| | - Stefan Wuertz
- Singapore Centre on Environmental Life Sciences Engineering (SCELSE), Nanyang Technological University, Singapore, Singapore School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, Singapore Department of Civil and Environmental Engineering, University of California, Davis, California, USA
| |
Collapse
|
47
|
Zhao CE, Wu J, Ding Y, Wang VB, Zhang Y, Kjelleberg S, Loo JSC, Cao B, Zhang Q. Hybrid Conducting Biofilm with Built-in Bacteria for High-Performance Microbial Fuel Cells. ChemElectroChem 2015. [DOI: 10.1002/celc.201402458] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
48
|
Song W, Yin C, Jiang R, Lu X, Quan Y, Tian C, Li J, Hu W, Sun P, Deng W, Fan Q, Huang W. A macrocyclic oligoelectrolyte as a facial platform for absorbing hyaluronic acid oligomers for targeted cancer cellular imaging. Polym Chem 2015. [DOI: 10.1039/c5py00633c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A macrocyclic oligoelectrolyte with a unique 3D rigid structure modified by hyaluronic acid was developed for targeted cancer cellular imaging, for the first time.
Collapse
|
49
|
Thomas AW, Catania C, Garner LE, Bazan GC. Pendant ionic groups of conjugated oligoelectrolytes govern their ability to intercalate into microbial membranes. Chem Commun (Camb) 2015; 51:9294-7. [DOI: 10.1039/c5cc01724f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The ionic groups of lipid membrane intercalating conjugated oligoelectrolytes affect their interaction with E. coli and application in microbial fuel cells.
Collapse
Affiliation(s)
- A. W. Thomas
- Center for Polymers and Organic Solids
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- USA
| | - C. Catania
- Materials Department
- University of California
- Santa Barbara
- USA
| | | | - G. C. Bazan
- Center for Polymers and Organic Solids
- Department of Chemistry and Biochemistry
- University of California
- Santa Barbara
- USA
| |
Collapse
|
50
|
Synergistic microbial consortium for bioenergy generation from complex natural energy sources. ScientificWorldJournal 2014; 2014:139653. [PMID: 25097866 PMCID: PMC4109225 DOI: 10.1155/2014/139653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Accepted: 06/16/2014] [Indexed: 11/24/2022] Open
Abstract
Microbial species have evolved diverse mechanisms for utilization of complex carbon sources. Proper combination of targeted species can affect bioenergy production from natural waste products. Here, we established a stable microbial consortium with Escherichia coli and Shewanella oneidensis in microbial fuel cells (MFCs) to produce bioenergy from an abundant natural energy source, in the form of the sarcocarp harvested from coconuts. This component is mostly discarded as waste. However, through its usage as a feedstock for MFCs to produce useful energy in this study, the sarcocarp can be utilized meaningfully. The monospecies S. oneidensis system was able to generate bioenergy in a short experimental time frame while the monospecies E. coli system generated significantly less bioenergy. A combination of E. coli and S. oneidensis in the ratio of 1 : 9 (v : v) significantly enhanced the experimental time frame and magnitude of bioenergy generation. The synergistic effect is suggested to arise from E. coli and S. oneidensis utilizing different nutrients as electron donors and effect of flavins secreted by S. oneidensis. Confocal images confirmed the presence of biofilms and point towards their importance in generating bioenergy in MFCs.
Collapse
|