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Teng T, Huang WE, Li G, Wang X, Song Y, Tang X, Dawa D, Jiang B, Zhang D. Application of magnetic-nanoparticle functionalized whole-cell biosensor array for bioavailability and ecotoxicity estimation at urban contaminated sites. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 896:165292. [PMID: 37414179 DOI: 10.1016/j.scitotenv.2023.165292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/01/2023] [Accepted: 07/01/2023] [Indexed: 07/08/2023]
Abstract
The bioavailability and ecotoxicity of pollutants are important for urban ecological systems and human health, particularly at contaminated urban sites. Therefore, whole-cell bioreporters are used in many studies to assess the risks of priority chemicals; however, their application is restricted by low throughput for specific compounds and complicated operations for field tests. In this study, an assembly technology for manufacturing Acinetobacter-based biosensor arrays using magnetic nanoparticle functionalization was developed to solve this problem. The bioreporter cells maintained high viability, sensitivity, and specificity in sensing 28 priority chemicals, seven heavy metals, and seven inorganic compounds in a high-throughput manner, and their performance remained acceptable for at least 20 d. We also tested the performance by assessing 22 real environmental soil samples from urban areas in China, and our results showed positive correlations between the biosensor estimation and chemical analysis. Our findings prove the feasibility of the magnetic nanoparticle-functionalized biosensor array to recognize the types and toxicities of multiple contaminants for online environmental monitoring at contaminated sites.
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Affiliation(s)
- Tingting Teng
- Key Laboratory of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun 130021, PR China; College of New Energy and Environment, Jilin University, Changchun 130021, PR China
| | - Wei E Huang
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK
| | - Guanghe Li
- School of Environment, Tsinghua University, Beijing 100084, PR China
| | - Xinzi Wang
- School of Environment, Tsinghua University, Beijing 100084, PR China; Suzhou Yiqing Environmental Technology Co. Ltd., Suzhou 215163, PR China
| | - Yizhi Song
- CAS Key Laboratory of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, PR China
| | - Xiaoyi Tang
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 2YQ, UK
| | - Dunzhu Dawa
- Key Laboratory of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun 130021, PR China; College of New Energy and Environment, Jilin University, Changchun 130021, PR China
| | - Bo Jiang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing 100083, PR China
| | - Dayi Zhang
- Key Laboratory of Groundwater Resources and Environment, Jilin University, Ministry of Education, Changchun 130021, PR China; College of New Energy and Environment, Jilin University, Changchun 130021, PR China.
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2
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Li S, Li Z, Tan GY, Xin Z, Wang W. In vitro allosteric transcription factor-based biosensing. Trends Biotechnol 2023; 41:1080-1095. [PMID: 36967257 DOI: 10.1016/j.tibtech.2023.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 02/15/2023] [Accepted: 03/01/2023] [Indexed: 06/18/2023]
Abstract
A biosensor is an analytical device that converts a biological response into a measurable output signal. Bacterial allosteric transcription factors (aTFs) have been utilized as a novel class of recognition elements for in vitro biosensing, which circumvents the limitations of aTF-based whole-cell biosensors (WCBs) and helps to meet the increasing requirement of small-molecule biosensors for diverse applications. In this review, we summarize the recent advances related to the configuration of aTF-based biosensors in vitro. Particularly, we evaluate the advantages of aTFs for in vitro biosensing and highlight their great potential for the establishment of robust and easy-to-implement biosensing strategies. We argue that key technical innovations and generalizable workflows will enhance the pipeline for facile construction of diverse aTF-based small-molecule biosensors.
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Affiliation(s)
- Shanshan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China
| | - Zilong Li
- State Key Laboratory of Microbial Resources, Institute of Microbiology, CAS, Beijing 100101, PR China
| | - Gao-Yi Tan
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, PR China
| | - Zhenguo Xin
- State Key Laboratory of Microbial Resources, Institute of Microbiology, CAS, Beijing 100101, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Weishan Wang
- State Key Laboratory of Microbial Resources, Institute of Microbiology, CAS, Beijing 100101, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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3
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Gheorghiu M, Polonschii C, Popescu O, Gheorghiu E. Advanced Optogenetic-Based Biosensing and Related Biomaterials. MATERIALS 2021; 14:ma14154151. [PMID: 34361345 PMCID: PMC8347019 DOI: 10.3390/ma14154151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 07/12/2021] [Accepted: 07/20/2021] [Indexed: 02/07/2023]
Abstract
The ability to stimulate mammalian cells with light, brought along by optogenetic control, has significantly broadened our understanding of electrically excitable tissues. Backed by advanced (bio)materials, it has recently paved the way towards novel biosensing concepts supporting bio-analytics applications transversal to the main biomedical stream. The advancements concerning enabling biomaterials and related novel biosensing concepts involving optogenetics are reviewed with particular focus on the use of engineered cells for cell-based sensing platforms and the available toolbox (from mere actuators and reporters to novel multifunctional opto-chemogenetic tools) for optogenetic-enabled real-time cellular diagnostics and biosensor development. The key advantages of these modified cell-based biosensors concern both significantly faster (minutes instead of hours) and higher sensitivity detection of low concentrations of bioactive/toxic analytes (below the threshold concentrations in classical cellular sensors) as well as improved standardization as warranted by unified analytic platforms. These novel multimodal functional electro-optical label-free assays are reviewed among the key elements for optogenetic-based biosensing standardization. This focused review is a potential guide for materials researchers interested in biosensing based on light-responsive biomaterials and related analytic tools.
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Affiliation(s)
- Mihaela Gheorghiu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101 Bucharest, Romania;
- Correspondence: (M.G.); (E.G.)
| | - Cristina Polonschii
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101 Bucharest, Romania;
| | - Octavian Popescu
- Molecular Biology Center, Institute for Interdisciplinary Research in Bio-Nano-Sciences, Babes-Bolyai-University, 400084 Cluj-Napoca, Romania;
- Institute of Biology Bucharest, Romanian Academy, 296 Splaiul Independentei, 060031 Bucharest, Romania
| | - Eugen Gheorghiu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101 Bucharest, Romania;
- Correspondence: (M.G.); (E.G.)
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4
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Jung Y, Coronel-Aguilera C, Doh IJ, Min HJ, Lim T, Applegate BM, Bae E. Design and application of a portable luminometer for bioluminescence detection. APPLIED OPTICS 2020; 59:801-810. [PMID: 32225212 DOI: 10.1364/ao.59.000801] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/30/2019] [Indexed: 06/10/2023]
Abstract
The silicon photomultiplier (SiPM) for low light detection has many advantages when compared to existing photon counting detectors, such as high sensitivity, low cost, robustness, and compact hardware. To facilitate the use of SiPM as a portable, field deployable device, an electrical circuit was designed consisting of an amplifier, comparator, and microcontroller. In addition, a 3D printing was used to create a portable cradle for housing the SiPM. To evaluate its detection ability, a laser experiment and bioluminescent experiments, including Pseudomonas fluorescens M3A detection, E. coli O157:H7 PhiV10nluc lysogen detection, and a luminescence-based detection of E. coli O157:H7 in ground meat using the engineered luminescent-based reporter phage PhiV10nluc, were conducted. In the same experimental setting, our previously developed smartphone-based luminometer called the bioluminescent-based analyte quantitation by smartphone and a conventional photomultiplier tube-based benchtop luminometer were used to compare detection levels and applicability for supporting luminescent phage-based pathogen detection. Results showed that the SiPM provides better performance in terms of time to detection and SNR and could be used as the light detection component of the PhiV10nluc phage-based detection format.
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Senko O, Stepanov N, Maslova O, Akhundov R, Ismailov A, Efremenko E. Immobilized Luminescent Bacteria for the Detection of Mycotoxins under Discrete and Flow-Through Conditions. BIOSENSORS 2019; 9:E63. [PMID: 31137498 PMCID: PMC6627987 DOI: 10.3390/bios9020063] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 12/20/2022]
Abstract
A biosensitive element in the form of bacterial Photobacterium phosphoreum cells immobilized in poly(vinyl alcohol) cryogel was tested for the determination of different mycotoxins under discrete and flow-through analysis conditions. The immobilized bioluminescent cells made it possible to quantify the presence of Ochratoxin A, Sterigmatocystin, Zearalenone, and Deoxynivalenon in aqueous media in a wide range of their concentrations (0.017-56 mg/L, 0.010-33 mg/L, 0.009-14 mg/L, and 0.026-177 mg/L, respectively) via measuring the quenching of cell luminescence. The flow conditions allowed the analysis sensitivity to be improved by an order of magnitude in terms of detected concentrations. Using the immobilized luminescent bacterial cells, we have shown the possibility of evaluating the efficiency of the mycotoxins' hydrolysis under the action of enzymes. In this way, a 94 ± 4.5% efficiency of Zearalenone hydrolysis with hexahistidine-containing organophosphorus hydrolase for 1h-long treatment of the mycotoxin solution (100 mg/L) was shown.
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Affiliation(s)
- Olga Senko
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
- Emanuel Institute of Biochemical Physics, Russian Academy of Science, 119334 Moscow, Russia.
| | - Nikolay Stepanov
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
- Emanuel Institute of Biochemical Physics, Russian Academy of Science, 119334 Moscow, Russia.
| | - Olga Maslova
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Rashid Akhundov
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Anvar Ismailov
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
| | - Elena Efremenko
- Faculty of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia.
- Emanuel Institute of Biochemical Physics, Russian Academy of Science, 119334 Moscow, Russia.
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6
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Handheld Enzymatic Luminescent Biosensor for Rapid Detection of Heavy Metals in Water Samples. CHEMOSENSORS 2019. [DOI: 10.3390/chemosensors7010016] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Enzymatic luminescent systems are a promising tool for rapid detection of heavy metals ions for water quality assessment. Nevertheless, their widespread use is limited by the lack of test procedure automation and available sensitive handheld luminometers. Herein we describe integration of disposable microfluidic chips for bioluminescent enzyme-inhibition based assay with a handheld luminometer, which detection system is based on a thermally stabilized silicon photomultiplier (SiPM). Microfluidic chips were made of poly(methyl methacrylate) by micro-milling method and sealed using a solvent bonding technique. The composition of the bioluminescent system in microfluidic chip was optimized to achieve higher luminescence intensity and storage time. Results indicate that developed device provided comparable sensitivity with bench-scale PMT-based commercial luminometers. Limit of detection for copper (II) sulfate reached 2.5 mg/L for developed biosensor. Hereby we proved the concept of handheld enzymatic optical biosensors with disposable chips for bioassay. The proposed biosensor can be used as an early warning field-deployable system for rapid detection of heavy metals salts and other toxic chemicals, which affect bioluminescent signal of enzymatic reaction.
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7
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Cao J, Yao Y, Fan K, Tan G, Xiang W, Xia X, Li S, Wang W, Zhang L. Harnessing a previously unidentified capability of bacterial allosteric transcription factors for sensing diverse small molecules in vitro. SCIENCE ADVANCES 2018; 4:eaau4602. [PMID: 30498782 PMCID: PMC6261655 DOI: 10.1126/sciadv.aau4602] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/30/2018] [Indexed: 05/15/2023]
Abstract
A plethora of bacterial allosteric transcription factors (aTFs) have been identified to sense a variety of small molecules. Introduction of a novel aTF-based approach to sense diverse small molecules in vitro will signify a broad series of detection applications. Here, we found that aTFs could interact with their nicked DNA binding sites. Building from this new finding, we designed and implemented a novel aTF-based nicked DNA template-assisted signal transduction system (aTF-NAST) by using the competition between aTFs and T4 DNA ligase to bind to the nicked DNA. This aTF-NAST could reliably and modularly transduce the signal of small molecules recognized by aTFs to the ligated DNA signal, thus enabling the small molecules to be measured via various mature and robust DNA detection methods. Coupling this aTF-NAST with three DNA detection methods, we demonstrated nine novel biosensors for the detection of an antiseptic 4-hydroxybenzoic acid, a disease marker uric acid and an antibiotic tetracycline. These biosensors show impressive sensitivity and robustness in real-life analysis, highlighting the great potential of our aTF-NAST for biosensing applications.
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Affiliation(s)
- Jiaqian Cao
- State Key Laboratory of Microbial Resources and Chinese Academy of Sciences (CAS) Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, CAS, Beijing 100101, P.R. China
| | - Yongpeng Yao
- State Key Laboratory of Microbial Resources and Chinese Academy of Sciences (CAS) Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, CAS, Beijing 100101, P.R. China
| | - Keqiang Fan
- State Key Laboratory of Microbial Resources and Chinese Academy of Sciences (CAS) Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, CAS, Beijing 100101, P.R. China
| | - Gaoyi Tan
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Wensheng Xiang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
| | - Xuekui Xia
- Key Laboratory for Biosensor of Shandong Province, Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250013, P.R. China
| | - Shanshan Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, P.R. China
- Corresponding author. (L.Z.); (W.W.); (S.L.)
| | - Weishan Wang
- State Key Laboratory of Microbial Resources and Chinese Academy of Sciences (CAS) Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, CAS, Beijing 100101, P.R. China
- Corresponding author. (L.Z.); (W.W.); (S.L.)
| | - Lixin Zhang
- State Key Laboratory of Microbial Resources and Chinese Academy of Sciences (CAS) Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, CAS, Beijing 100101, P.R. China
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, P.R. China
- Corresponding author. (L.Z.); (W.W.); (S.L.)
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8
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Cevenini L, Calabretta MM, Calabria D, Roda A, Michelini E. Luciferase Genes as Reporter Reactions: How to Use Them in Molecular Biology? ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2018; 154:3-17. [PMID: 25898810 DOI: 10.1007/10_2015_325] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
: The latest advances in molecular biology have made available several biotechnological tools that take advantage of the high detectability and quantum efficiency of bioluminescence (BL), with an ever-increasing number of novel applications in environmental, pharmaceutical, food, and forensic fields. Indeed, BL proteins are being used to develop ultrasensitive binding assays and cell-based assays, thanks to their high detectability and to the availability of highly sensitive BL instruments. The appealing aspect of molecular biology tools relying on BL reactions is their general applicability in both in vitro assays, such as cell cultures or purified proteins, and in vivo settings, such as in whole-animal BL imaging. The aim of this chapter is to provide the reader with an overview of state-of-the-art bioluminescent tools based on luciferase genes, highlighting molecular biology strategies that have been applied so far, together with some selected examples.
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Affiliation(s)
- L Cevenini
- Dept. of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - M M Calabretta
- Dept. of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - D Calabria
- Dept. of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - A Roda
- Dept. of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy
| | - E Michelini
- Dept. of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
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9
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Kim BJ, Cho H, Park JH, Mano JF, Choi IS. Strategic Advances in Formation of Cell-in-Shell Structures: From Syntheses to Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706063. [PMID: 29441678 DOI: 10.1002/adma.201706063] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 11/12/2017] [Indexed: 05/24/2023]
Abstract
Single-cell nanoencapsulation, forming cell-in-shell structures, provides chemical tools for endowing living cells, in a programmed fashion, with exogenous properties that are neither innate nor naturally achievable, such as cascade organic-catalysis, UV filtration, immunogenic shielding, and enhanced tolerance in vitro against lethal factors in real-life settings. Recent advances in the field make it possible to further fine-tune the physicochemical properties of the artificial shells encasing individual living cells, including on-demand degradability and reconfigurability. Many different materials, other than polyelectrolytes, have been utilized as a cell-coating material with proper choice of synthetic strategies to broaden the potential applications of cell-in-shell structures to whole-cell catalysis and sensors, cell therapy, tissue engineering, probiotics packaging, and others. In addition to the conventional "one-time-only" chemical formation of cytoprotective, durable shells, an approach of autonomous, dynamic shellation has also recently been attempted to mimic the naturally occurring sporulation process and to make the artificial shell actively responsive and dynamic. Here, the recent development of synthetic strategies for formation of cell-in-shell structures along with the advanced shell properties acquired is reviewed. Demonstrated applications, such as whole-cell biocatalysis and cell therapy, are discussed, followed by perspectives on the field of single-cell nanoencapsulation.
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Affiliation(s)
- Beom Jin Kim
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - Hyeoncheol Cho
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - Ji Hun Park
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
| | - João F Mano
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193, Aveiro, Portugal
| | - Insung S Choi
- Center for Cell-Encapsulation Research, Department of Chemistry, KAIST, Daejeon, 34141, Korea
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10
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Kiprono SJ, Ullah MW, Yang G. Surface engineering of microbial cells: Strategies and applications. ACTA ACUST UNITED AC 2018. [DOI: 10.30919/es.180330] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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11
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Martín-Betancor K, Durand MJ, Thouand G, Leganés F, Fernández-Piñas F, Rodea-Palomares I. Microplate freeze-dried cyanobacterial bioassay for fresh-waters environmental monitoring. CHEMOSPHERE 2017; 189:373-381. [PMID: 28946071 DOI: 10.1016/j.chemosphere.2017.09.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 09/04/2017] [Accepted: 09/07/2017] [Indexed: 06/07/2023]
Abstract
Microorganisms have been very useful in environmental monitoring due to their constant sensing of the surrounding environment, their easy maintenance and low cost. Some freeze-dried toxicity kits based on naturally bioluminescent bacteria are commercially available and commonly used to assess the toxicity of environmental samples such as Microtox (Aliivibrio fischeri) or ToxScreen (Photobacterium leiognathi), however, due to the marine origin of these bacteria, they could not be the most appropriate for fresh-waters monitoring. Cyanobacteria are one of the most representative microorganisms of aquatic environments, and are well suited for detecting contaminants in aqueous samples. This study presents the development and application of the first freeze-dried cyanobacterial bioassay for fresh-water contaminants detection. The effects of different cell growth phases, cryoprotectant solutions, freezing protocols, rehydration solutions and incubation conditions methods were evaluated and the best combination of these parameters for freeze-drying was selected. The study includes detailed characterization of sensitivity towards reference pollutants, as well as, comparison with the standard assays. Moreover, long-term viability and sensitivity were evaluated after 3 years of storage. Freeze-dried cyanobacteria showed, in general, higher sensitivity than the standard assays and viability of the cells remained after 3 years of storage. Finally, the validation of the bioassay using a wastewater sample was also evaluated. Freeze-drying of cyanobacteria in 96-well plates presents a simple, fast and multi-assay method for environmental monitoring.
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Affiliation(s)
- Keila Martín-Betancor
- Department of Biology, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain.
| | | | | | - Francisco Leganés
- Department of Biology, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | | | - Ismael Rodea-Palomares
- Department of Biology, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049, Madrid, Spain
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12
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Dinca V, Zaharie-Butucel D, Stanica L, Brajnicov S, Marascu V, Bonciu A, Cristocea A, Gaman L, Gheorghiu M, Astilean S, Vasilescu A. Functional Micrococcus lysodeikticus layers deposited by laser technique for the optical sensing of lysozyme. Colloids Surf B Biointerfaces 2017; 162:98-107. [PMID: 29190474 DOI: 10.1016/j.colsurfb.2017.11.058] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 11/13/2017] [Accepted: 11/22/2017] [Indexed: 12/17/2022]
Abstract
Whole cell optical biosensors, made by immobilizing whole algal, bacterial or mammalian cells on various supports have found applications in several fields, from ecology and ecotoxicity testing to biopharmaceutical production or medical diagnostics. We hereby report the deposition of functional bacterial layers of Micrococcus lysodeikticus (ML) via Matrix-Assisted Pulsed Laser Evaporation (MAPLE) on poly(diallyldimethylamonium) (PDDA)-coated-glass slides and their application as an optical biosensor for the detection of lysozyme in serum. Lysozyme is an enzyme upregulated in inflammatory diseases and ML is an enzymatic substrate for this enzyme. The MAPLE-deposited bacterial interfaces were characterised by Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM), Fourier-Transformed Infrared Spectroscopy (FTIR), Raman and optical microscopy and were compared with control interfaces deposited via layer-by-layer on the same substrate. After MAPLE deposition and coating with graphene oxide (GO), ML-modified interfaces retained their functionality and sensitivity to lysozyme's lytic action. The optical biosensor detected lysozyme in undiluted serum in the clinically relevant range up to 10μgmL-1, in a fast and simple manner.
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Affiliation(s)
- Valentina Dinca
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor, 077125, Magurele, Romania
| | - Diana Zaharie-Butucel
- Nanobiophotonics Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, 42 Treboniu Laurian, Cluj-Napoca, Romania
| | - Luciana Stanica
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101, Bucharest, Romania
| | - Simona Brajnicov
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor, 077125, Magurele, Romania; University of Craiova, Faculty of Mathematics and Natural Science, 13 Alexandru Ioan Cuza, 200585, Craiova, Romania
| | - Valentina Marascu
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor, 077125, Magurele, Romania; University of Bucharest, Faculty of Physics, 405 Atomistilor, 077125, Magurele, Romania
| | - Anca Bonciu
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor, 077125, Magurele, Romania; University of Bucharest, Faculty of Physics, 405 Atomistilor, 077125, Magurele, Romania
| | - Andra Cristocea
- Fundeni Clinical Institute, Department of Gastroenterology and Hepatology, 258 Sos. Fundeni, Bucharest, Romania
| | - Laura Gaman
- "Carol Davila" University of Medicine and Pharmacy, Faculty of Medicine, Department of Biochemistry, 8 B-dul Eroilor Sanitari, 76241, Bucharest, Romania
| | - Mihaela Gheorghiu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101, Bucharest, Romania
| | - Simion Astilean
- Nanobiophotonics Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, 42 Treboniu Laurian, Cluj-Napoca, Romania
| | - Alina Vasilescu
- International Centre of Biodynamics, 1B Intrarea Portocalelor, 060101, Bucharest, Romania.
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13
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Jiang B, Li G, Xing Y, Zhang D, Jia J, Cui Z, Luan X, Tang H. A whole-cell bioreporter assay for quantitative genotoxicity evaluation of environmental samples. CHEMOSPHERE 2017; 184:384-392. [PMID: 28609744 DOI: 10.1016/j.chemosphere.2017.05.159] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 05/26/2017] [Accepted: 05/28/2017] [Indexed: 06/07/2023]
Abstract
Whole-cell bioreporters have emerged as promising tools for genotoxicity evaluation, due to their rapidity, cost-effectiveness, sensitivity and selectivity. In this study, a method for detecting genotoxicity in environmental samples was developed using the bioluminescent whole-cell bioreporter Escherichia coli recA::luxCDABE. To further test its performance in a real world scenario, the E. coli bioreporter was applied in two cases: i) soil samples collected from chromium(VI) contaminated sites; ii) crude oil contaminated seawater collected after the Jiaozhou Bay oil spill which occurred in 2013. The chromium(VI) contaminated soils were pretreated by water extraction, and directly exposed to the bioreporter in two phases: aqueous soil extraction (water phase) and soil supernatant (solid phase). The results indicated that both extractable and soil particle fixed chromium(VI) were bioavailable to the bioreporter, and the solid-phase contact bioreporter assay provided a more precise evaluation of soil genotoxicity. For crude oil contaminated seawater, the response of the bioreporter clearly illustrated the spatial and time change in genotoxicity surrounding the spill site, suggesting that the crude oil degradation process decreased the genotoxic risk to ecosystem. In addition, the performance of the bioreporter was simulated by a modified cross-regulation gene expression model, which quantitatively described the DNA damage response of the E. coli bioreporter. Accordingly, the bioluminescent response of the bioreporter was calculated as the mitomycin C equivalent, enabling quantitative comparison of genotoxicities between different environmental samples. This bioreporter assay provides a rapid and sensitive screening tool for direct genotoxicity assessment of environmental samples.
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Affiliation(s)
- Bo Jiang
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, People's Republic of China; School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Guanghe Li
- School of Environment, Tsinghua University, Beijing, 100084, People's Republic of China.
| | - Yi Xing
- School of Energy and Environmental Engineering, University of Science & Technology Beijing, Beijing, 100083, People's Republic of China.
| | - Dayi Zhang
- Lancaster Environment Center, Lancaster University, Lancaster, LA1 4YQ, UK
| | - Jianli Jia
- School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing, 100083, People's Republic of China
| | - Zhisong Cui
- The First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, People's Republic of China
| | - Xiao Luan
- The First Institute of Oceanography, State Oceanic Administration, Qingdao, 266061, People's Republic of China
| | - Hui Tang
- School of Chemical and Environmental Engineering, China University of Mining & Technology, Beijing, 100083, People's Republic of China
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14
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New methodologies in screening of antibiotic residues in animal-derived foods: Biosensors. Talanta 2017; 175:435-442. [PMID: 28842013 DOI: 10.1016/j.talanta.2017.07.044] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 05/15/2017] [Accepted: 07/13/2017] [Indexed: 01/05/2023]
Abstract
Antibiotics are leading medicine asset for fighting against microbial infection, but also one of the important causes of death worldwide. Many antibiotics used as therapeutics and growth promotion agents in animals can lead to antibiotic residues in animal-derived food which harm the health of people. Hence, it is vital to screen antibiotic residues in animal derived foods. Typical methods for screening antibiotic residues are based on microbiological growth inhibition and immunological analyses. However these two methods have some disadvantages, such as poor sensitive, lack of specificity and etc. Therefore, it is necessary to develop simple, more efficient and high sensitive screening methods of antibiotic residues. These assays have been introduced for the screening of numerous food samples. Biosensors are emerging methods, applied in screening antibiotic residues in animal-derived foods. Two types of biosensors, whole-cell based biosensors and surface plasmon resonance-based sensors have been extensively used. Their advantages include portability, small sample requirement, high sensitivity and good specificity over the traditional screening methods.
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15
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Ahmed NB, Ronsin O, Mouton L, Sicard C, Yéprémian C, Baumberger T, Brayner R, Coradin T. The physics and chemistry of silica-in-silicates nanocomposite hydrogels and their phycocompatibility. J Mater Chem B 2017; 5:2931-2940. [PMID: 32263986 DOI: 10.1039/c7tb00341b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Silicates-in-silica nanocomposite hydrogels obtained from sodium silicates/colloidal silica mixtures have previously been found to be useful for bacterial encapsulation. However the extension of synthesis conditions and the understanding of their impact on the silica matrix would widen the applicability of this process in terms of encapsulated organisms and the host properties. Here the influence of silicates and the colloidal silica concentration as well as pH conditions on the gel time, the optical properties, the structural and mechanical properties of silica matrices was studied. We show that gel formation is driven by silicate condensation but that the aggregation of silica colloids also has a major influence on the transparency and structure of the nanocomposites. Three different photosynthetic organisms, cyanobacteria Anabaena flos-aquae and two microalgae Chorella vulgaris and Euglena gracilis, were used as probes of the phycocompatibility of the process. The three organisms were highly sensitive to the silicate concentration, which impacts both the gelation time and ionic strength conditions. The Ludox content was crucial for cyanobacteria as it strongly impacts the Young's modulus of the matrices. The detrimental effect of acidic pH on cell suspension was compensated by the silica network. Overall, it is now possible to select optimal encapsulation conditions based on the physiology of the targeted cells, opening wide perspectives for the design of biosensors and bioreactors.
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Affiliation(s)
- Nada Ben Ahmed
- Sorbonne Universités, UPMC Univ Paris 06, CNRS, Collège de France, UMR 7574, Laboratoire de Chimie de la Matière Condensée de Paris, 4 place Jussieu, F-75005 Paris, France.
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16
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Yang J, Li J, Li X, Wang X, Yang Y, Kawazoe N, Chen G. Nanoencapsulation of individual mammalian cells with cytoprotective polymer shell. Biomaterials 2017; 133:253-262. [PMID: 28445804 DOI: 10.1016/j.biomaterials.2017.04.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 04/10/2017] [Accepted: 04/12/2017] [Indexed: 12/25/2022]
Abstract
Nanoencapsulation of individual mammalian cells has great potential in biomedical, biotechnological and bioelectronic applications. However, existing techniques for cell nanoencapsulation generally yield short sustaining period and loose structure of encapsulation shell, which fails to meet the long-term cytoprotection and immunosuppression requirements. Here, we report a mild method to realize the nanoencapsulation of individual mammalian cells by layer-by-layer (LbL) assembly of gelatin inner layer and cross-linking of poly(ethylene glycol) (PEG) outer layer through thiol-click chemistry. With the present method, the encapsulated individual HeLa cells showed a high viability, long persistence period and effective resistance against macro external entities and high physical stress. Moreover, on-demand cell release could also be achieved by selective cleavage of succinimide thioether linkage in the outer PEG layer. The approach presented here may provide a new and versatile method for the cleavable nanoencapsulation of individual mammalian cells.
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Affiliation(s)
- Jianmin Yang
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Jingchao Li
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Xiaomeng Li
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Xinlong Wang
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Yingjun Yang
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan
| | - Naoki Kawazoe
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan
| | - Guoping Chen
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan; Department of Materials Science and Engineering, Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8577, Japan; Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
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17
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Li S, Zhou L, Yao Y, Fan K, Li Z, Zhang L, Wang W, Yang K. A platform for the development of novel biosensors by configuring allosteric transcription factor recognition with amplified luminescent proximity homogeneous assays. Chem Commun (Camb) 2017; 53:99-102. [DOI: 10.1039/c6cc07244e] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using isolated allosteric transcription factors as recognition elements, a versatile platform was established in vitro to develop sensitive biosensors for the detection of various chemicals.
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Affiliation(s)
- Shanshan Li
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
| | - Li Zhou
- Institute of Health Sciences
- Anhui University
- Hefei
- China
| | - Yongpeng Yao
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
| | - Keqiang Fan
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
| | - Zilong Li
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
| | - Lixin Zhang
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
| | - Weishan Wang
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
| | - Keqian Yang
- State Key Laboratory of Microbial Resources
- Institute of Microbiology
- Chinese Academy of Sciences
- 100101 Beijing
- China
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18
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Descamps ECT, Meunier D, Brutesco C, Prévéral S, Franche N, Bazin I, Miclot B, Larosa P, Escoffier C, Fantino JR, Garcia D, Ansaldi M, Rodrigue A, Pignol D, Cholat P, Ginet N. Semi-autonomous inline water analyzer: design of a common light detector for bacterial, phage, and immunological biosensors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:66-72. [PMID: 27838908 DOI: 10.1007/s11356-016-8010-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 10/26/2016] [Indexed: 06/06/2023]
Abstract
The use of biosensors as sensitive and rapid alert systems is a promising perspective to monitor accidental or intentional environmental pollution, but their implementation in the field is limited by the lack of adapted inline water monitoring devices. We describe here the design and initial qualification of an analyzer prototype able to accommodate three types of biosensors based on entirely different methodologies (immunological, whole-cell, and bacteriophage biosensors), but whose responses rely on the emission of light. We developed a custom light detector and a reaction chamber compatible with the specificities of the three systems and resulting in statutory detection limits. The water analyzer prototype resulting from the COMBITOX project can be situated at level 4 on the Technology Readiness Level (TRL) scale and this technical advance paves the way to the use of biosensors on-site.
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Affiliation(s)
- Elodie C T Descamps
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France
| | - Damien Meunier
- AP2E, 240, rue Louis de Broglie, Les Méridiens Bâtiment A, CS90537, 13593, Aix-en-Provence, France
| | - Catherine Brutesco
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France
| | - Sandra Prévéral
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France
| | - Nathalie Franche
- Laboratoire de Chimie Bactérienne, UMR7283, Centre National de la Recherche Scientifique, Aix-Marseille Université, Marseille, France
| | - Ingrid Bazin
- Laboratoire de Génie de L'Environnement industriel, École des Mines d'Alès, CEDEX, 6 Avenue de Clavières, 30319, Alès, France
| | - Bertrand Miclot
- AP2E, 240, rue Louis de Broglie, Les Méridiens Bâtiment A, CS90537, 13593, Aix-en-Provence, France
| | - Philippe Larosa
- AP2E, 240, rue Louis de Broglie, Les Méridiens Bâtiment A, CS90537, 13593, Aix-en-Provence, France
| | - Camille Escoffier
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France
| | - Jean-Raphael Fantino
- Laboratoire de Chimie Bactérienne, UMR7283, Centre National de la Recherche Scientifique, Aix-Marseille Université, Marseille, France
| | - Daniel Garcia
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France
| | - Mireille Ansaldi
- Laboratoire de Chimie Bactérienne, UMR7283, Centre National de la Recherche Scientifique, Aix-Marseille Université, Marseille, France
| | - Agnès Rodrigue
- Université de Lyon, Lyon, F-69003, INSA de Lyon, F-69621, CNRS, UMR5240, Microbiologie, Adaptation et Pathogénie, Villeurbanne, Université Lyon 1, F-69622, Lyon, France
| | - David Pignol
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France
| | - Pierre Cholat
- AP2E, 240, rue Louis de Broglie, Les Méridiens Bâtiment A, CS90537, 13593, Aix-en-Provence, France
| | - Nicolas Ginet
- CEA, DRF, BIAM, Lab Bioenerget Cellulaire, 13108, Saint-Paul-lez-Durance, France.
- CNRS, UMR Biol Veget & Microbiol Environ, 13108, Saint-Paul-lez-Durance, France.
- Aix-Marseille Université, 13108, Saint-Paul-lez-Durance, France.
- Laboratoire de Chimie Bactérienne, UMR7283, Centre National de la Recherche Scientifique, Aix-Marseille Université, Marseille, France.
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19
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Hunt JP, Schinn SM, Jones MD, Bundy BC. Rapid, portable detection of endocrine disrupting chemicals through ligand-nuclear hormone receptor interactions. Analyst 2017; 142:4595-4600. [DOI: 10.1039/c7an01540b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Recent advances in biosensing technology are enabling rapid and portable detection of nuclear hormone receptor ligand endocrine disrupting chemicals.
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Affiliation(s)
- J. Porter Hunt
- Department of Chemical Engineering
- Brigham Young University
- Provo
- USA
| | - Song-Min Schinn
- Department of Chemical Engineering
- Brigham Young University
- Provo
- USA
| | - Matthew D. Jones
- Department of Chemical Engineering
- Brigham Young University
- Provo
- USA
| | - Bradley C. Bundy
- Department of Chemical Engineering
- Brigham Young University
- Provo
- USA
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20
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Kuncová G, Ishizaki T, Solovyev A, Trögl J, Ripp S. The Repetitive Detection of Toluene with Bioluminescence Bioreporter Pseudomonas putida TVA8 Encapsulated in Silica Hydrogel on an Optical Fiber. MATERIALS 2016; 9:ma9060467. [PMID: 28773598 PMCID: PMC5456779 DOI: 10.3390/ma9060467] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Revised: 06/02/2016] [Accepted: 06/07/2016] [Indexed: 12/20/2022]
Abstract
Living cells of the lux-based bioluminescent bioreporter Pseudomonas putida TVA8 were encapsulated in a silica hydrogel attached to the distal wider end of a tapered quartz fiber. Bioluminescence of immobilized cells was induced with toluene at high (26.5 mg/L) and low (5.3 mg/L) concentrations. Initial bioluminescence maxima were achieved after >12 h. One week after immobilization, a biofilm-like layer of cells had formed on the surface of the silica gel. This resulted in shorter response times and more intensive bioluminescence maxima that appeared as rapidly as 2 h after toluene induction. Considerable second bioluminescence maxima were observed after inductions with 26.5 mg toluene/L. The second and third week after immobilization the biosensor repetitively and semiquantitatively detected toluene in buffered medium. Due to silica gel dissolution and biofilm detachment, the bioluminescent signal was decreasing 20-32 days after immobilization and completely extinguished after 32 days. The reproducible formation of a surface cell layer on the wider end of the tapered optical fiber can be translated to various whole cell bioluminescent biosensor devices and may serve as a platform for in-situ sensors.
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Affiliation(s)
- Gabriela Kuncová
- Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135, 16500 Praha 6, Czech Republic.
| | - Takayuki Ishizaki
- Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135, 16500 Praha 6, Czech Republic.
| | - Andrey Solovyev
- Institute of Chemical Process Fundamentals of the CAS, v.v.i., Rozvojová 135, 16500 Praha 6, Czech Republic.
| | - Josef Trögl
- Faculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, Králova Výšina 3132/7, 40096 Ústí nad Labem, Czech Republic.
| | - Steven Ripp
- Center for Environmental Biotechnology, The University of Tennessee, 676 Dabney Hall, Knoxville, TN 37996, USA.
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21
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Jarque S, Bittner M, Hilscherová K. Freeze-drying as suitable method to achieve ready-to-use yeast biosensors for androgenic and estrogenic compounds. CHEMOSPHERE 2016; 148:204-210. [PMID: 26807940 DOI: 10.1016/j.chemosphere.2016.01.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Revised: 01/08/2016] [Accepted: 01/09/2016] [Indexed: 06/05/2023]
Abstract
Recombinant yeast assays (RYAs) have been proved to be a suitable tool for the fast screening of compounds with endocrine disrupting activities. However, ready-to-use versions more accessible to less equipped laboratories and field studies are scarce and far from optimal throughputs. Here, we have applied freeze-drying technology to optimize RYA for the fast assessment of environmental compounds with estrogenic and androgenic potencies. The effects of different cryoprotectants, initial optical density and long-term storage were evaluated. The study included detailed characterization of sensitivity, robustness and reproducibility of the new ready-to-use versions, as well as comparison with the standard assays. Freeze-dried RYAs showed similar dose-responses curves to their homolog standard assays, with Lowest Observed Effect Concentration (LOEC) and Median effective Concentration (EC50) of 1 nM and 7.5 nM for testosterone, and 0.05 nM and 0.5 nM for 17β-estradiol, respectively. Freeze-dried cells stored at 4 °C retained maximum sensitivity up to 2 months, while cells stored at -18 °C showed no decrease in sensitivity throughout the study (10 months). This ready-to-use RYA is easily accessible and may be potentially used for on-site applications.
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Affiliation(s)
- Sergio Jarque
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5/753, Brno CZ62500, Czech Republic
| | - Michal Bittner
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5/753, Brno CZ62500, Czech Republic
| | - Klára Hilscherová
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5/753, Brno CZ62500, Czech Republic.
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22
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Mankiewicz-Boczek J, Karwaciak I, Ratajewski M, Gągała I, Jurczak T, Zalewski M, Pułaski Ł. Application of cellular biosensors for detection of atypical toxic bioactivity in microcystin-containing cyanobacterial extracts. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2015; 168:1-10. [PMID: 26398929 DOI: 10.1016/j.aquatox.2015.09.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 09/04/2015] [Accepted: 09/08/2015] [Indexed: 06/05/2023]
Abstract
Despite the focus of most ecotoxicological studies on cyanobacteria on a select group of cyanotoxins, especially microcystins, a growing body of evidence points to the involvement of other cyanobacterial metabolites in deleterious health effects. In the present study, original, self-developed reporter gene-based cellular biosensors, detecting activation of the main human xenobiotic stress response pathways, PXR and NFkappaB, were applied to detect novel potentially toxic bioactivities in extracts from freshwater microcystin-producing cyanobacterial blooms. Crude and purified extracts from cyanobacteria containing varying levels of microcystins, and standard microcystin-LR were tested. Two cellular biosensor types applied in this study, called NHRTOX (detecting PXR activation) and OXIBIOS (detecting NFkappaB activation), successfully detected potentially toxic or immunomodulating bioactivities in cyanobacterial extracts. The level of biosensor activation was comparable to control cognate environmental toxins. Despite the fact that extracts were derived from microcystin-producing cyanobacterial blooms and contained active microcystins, biosensor-detected bioactivities were shown to be unrelated to microcystin levels. Experimental results suggest the involvement of environmental toxins (causing a response in NHRTOX) and lipopolysaccharides (LPS) or other cell wall components (causing a response in OXIBIOS) in the potentially harmful bioactivity of investigated extracts. These results demonstrate the need for further identification of cyanobacterial metabolites other than commonly studied cyanotoxins as sources of health risk, show the usefulness of cellular biosensors for this purpose and suggest a novel, more holistic approach to environmental monitoring.
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Affiliation(s)
- Joanna Mankiewicz-Boczek
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 3 Tylna, 90-364 Łódź, Poland; Department of Applied Ecology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha, 90-237 Łódź, Poland.
| | - Iwona Karwaciak
- Laboratory of Transcriptional Regulation, Institute of Medical Biology of the Polish Academy of Sciences, 106 Lodowa, 93-232 Łódź, Poland
| | - Marcin Ratajewski
- Laboratory of Transcriptional Regulation, Institute of Medical Biology of the Polish Academy of Sciences, 106 Lodowa, 93-232 Łódź, Poland
| | - Ilona Gągała
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 3 Tylna, 90-364 Łódź, Poland
| | - Tomasz Jurczak
- Department of Applied Ecology, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha, 90-237 Łódź, Poland
| | - Maciej Zalewski
- European Regional Centre for Ecohydrology of the Polish Academy of Sciences, 3 Tylna, 90-364 Łódź, Poland
| | - Łukasz Pułaski
- Laboratory of Transcriptional Regulation, Institute of Medical Biology of the Polish Academy of Sciences, 106 Lodowa, 93-232 Łódź, Poland; Department of Molecular Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, 12/16 Banacha, 90-237 Łódź, Poland.
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23
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Shemer B, Palevsky N, Yagur-Kroll S, Belkin S. Genetically engineered microorganisms for the detection of explosives' residues. Front Microbiol 2015; 6:1175. [PMID: 26579085 PMCID: PMC4625088 DOI: 10.3389/fmicb.2015.01175] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Accepted: 10/12/2015] [Indexed: 01/14/2023] Open
Abstract
The manufacture and use of explosives throughout the past century has resulted in the extensive pollution of soils and groundwater, and the widespread interment of landmines imposes a major humanitarian risk and prevents civil development of large areas. As most current landmine detection technologies require actual presence at the surveyed areas, thus posing a significant risk to personnel, diverse research efforts are aimed at the development of remote detection solutions. One possible means proposed to fulfill this objective is the use of microbial bioreporters: genetically engineered microorganisms “tailored” to generate an optical signal in the presence of explosives’ vapors. The use of such sensor bacteria will allow to pinpoint the locations of explosive devices in a minefield. While no study has yet resulted in a commercially operational system, significant progress has been made in the design and construction of explosives-sensing bacterial strains. In this article we review the attempts to construct microbial bioreporters for the detection of explosives, and analyze the steps that need to be undertaken for this strategy to be applicable for landmine detection.
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Affiliation(s)
- Benjamin Shemer
- Department of Plant and Environmental Sciences, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Noa Palevsky
- Department of Plant and Environmental Sciences, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Sharon Yagur-Kroll
- Department of Plant and Environmental Sciences, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem Jerusalem, Israel
| | - Shimshon Belkin
- Department of Plant and Environmental Sciences, The Alexander Silberman Institute of Life Sciences, The Hebrew University of Jerusalem Jerusalem, Israel
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Pospíšilová M, Kuncová G, Trögl J. Fiber-Optic Chemical Sensors and Fiber-Optic Bio-Sensors. SENSORS (BASEL, SWITZERLAND) 2015; 15:25208-59. [PMID: 26437407 PMCID: PMC4634516 DOI: 10.3390/s151025208] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 09/08/2015] [Accepted: 09/14/2015] [Indexed: 02/06/2023]
Abstract
This review summarizes principles and current stage of development of fiber-optic chemical sensors (FOCS) and biosensors (FOBS). Fiber optic sensor (FOS) systems use the ability of optical fibers (OF) to guide the light in the spectral range from ultraviolet (UV) (180 nm) up to middle infrared (IR) (10 μm) and modulation of guided light by the parameters of the surrounding environment of the OF core. The introduction of OF in the sensor systems has brought advantages such as measurement in flammable and explosive environments, immunity to electrical noises, miniaturization, geometrical flexibility, measurement of small sample volumes, remote sensing in inaccessible sites or harsh environments and multi-sensing. The review comprises briefly the theory of OF elaborated for sensors, techniques of fabrications and analytical results reached with fiber-optic chemical and biological sensors.
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Affiliation(s)
- Marie Pospíšilová
- Czech Technical University, Faculty of Biomedical Engeneering, Nám. Sítná 3105, 27201 Kladno, Czech Republic.
| | - Gabriela Kuncová
- Institute of Chemical Process Fundamentals, ASCR, Rozvojová 135, 16500 Prague, Czech Republic.
| | - Josef Trögl
- Faculty of Environment, Jan Evangelista Purkyně University in Ústí nad Labem, KrálovaVýšina 3132/7, 40096 Ústí nad Labem, Czech Republic.
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Bittner M, Jarque S, Hilscherová K. Polymer-immobilized ready-to-use recombinant yeast assays for the detection of endocrine disruptive compounds. CHEMOSPHERE 2015; 132:56-62. [PMID: 25797899 DOI: 10.1016/j.chemosphere.2015.02.063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2014] [Revised: 02/17/2015] [Accepted: 02/26/2015] [Indexed: 06/04/2023]
Abstract
Recombinant yeast assays (RYAs) constitute a suitable tool for the environmental monitoring of compounds with endocrine disrupting activities, notably estrogenicity and androgenicity. Conventional procedures require yeast reconstitution from frozen stock, which usually takes several days and demands additional equipment. With the aim of applying such assays to field studies and making them more accessible to less well-equipped laboratories, we have optimized RYA by the immobilization of Saccharomyces cerevisiae cells in three different polymer matrices - gelatin, Bacto agar, and Yeast Extract Peptone Dextrose agar - to obtain a ready-to-use version for the fast assessment of estrogenic and androgenic potencies of compounds and environmental samples. Among the three matrices, gelatin showed the best results for both testosterone (androgen receptor yeast strain; AR-RYA) and 17β-estradiol (estrogen receptor yeast strain; ER-RYA). AR-RYA was characterized by a lowest observed effect concentration (LOEC), EC50 and induction factor (IF) of 1nM, 2.2nM and 51, respectively. The values characterizing ER-RYA were 0.4nM, 1.8nM, and 63, respectively. Gelatin immobilization retained yeast viability and sensitivity for more than 90d of storage at 4°C. The use of the immobilized yeast reduced the assay duration to only 3h without necessity of sterile conditions. Because immobilized RYA can be performed either in multiwell microplates or glass tubes, it allows multiple samples to be tested at once, and easy adaptation to existing portable devices for direct in-field applications.
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Affiliation(s)
- Michal Bittner
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, CZ-62500 Brno, Czech Republic
| | - Sergio Jarque
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, CZ-62500 Brno, Czech Republic
| | - Klára Hilscherová
- Masaryk University, Faculty of Science, RECETOX, Kamenice 5, CZ-62500 Brno, Czech Republic.
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26
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Fernandez-López R, Ruiz R, de la Cruz F, Moncalián G. Transcription factor-based biosensors enlightened by the analyte. Front Microbiol 2015; 6:648. [PMID: 26191047 PMCID: PMC4486848 DOI: 10.3389/fmicb.2015.00648] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 06/15/2015] [Indexed: 01/17/2023] Open
Abstract
Whole cell biosensors (WCBs) have multiple applications for environmental monitoring, detecting a wide range of pollutants. WCBs depend critically on the sensitivity and specificity of the transcription factor (TF) used to detect the analyte. We describe the mechanism of regulation and the structural and biochemical properties of TF families that are used, or could be used, for the development of environmental WCBs. Focusing on the chemical nature of the analyte, we review TFs that respond to aromatic compounds (XylS-AraC, XylR-NtrC, and LysR), metal ions (MerR, ArsR, DtxR, Fur, and NikR) or antibiotics (TetR and MarR). Analyzing the structural domains involved in DNA recognition, we highlight the similitudes in the DNA binding domains (DBDs) of these TF families. Opposite to DBDs, the wide range of analytes detected by TFs results in a diversity of structures at the effector binding domain. The modular architecture of TFs opens the possibility of engineering TFs with hybrid DNA and effector specificities. Yet, the lack of a crisp correlation between structural domains and specific functions makes this a challenging task.
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Affiliation(s)
| | | | | | - Gabriel Moncalián
- Departamento de Biología Molecular and Instituto de Biomedicina y Biotecnología de Cantabria, Universidad de Cantabria – Consejo Superior de Investigaciones CientíficasSantander, Spain
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27
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Jensen CD, Müeller C. Predictor–Response Analysis of Fiber Optic Enzymatic Biosensors Constructed with Nonmodified E. coli BL21 (DE3) pGELAF+ Sensing 1,2-Dichloroethane. Appl Biochem Biotechnol 2015; 176:987-98. [DOI: 10.1007/s12010-015-1623-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 04/06/2015] [Indexed: 11/27/2022]
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Jiang B, Song Y, Zhang D, Huang WE, Zhang X, Li G. The influence of carbon sources on the expression of the recA gene and genotoxicity detection by an Acinetobacter bioreporter. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2015; 17:835-843. [PMID: 25764502 DOI: 10.1039/c4em00692e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Bacterial whole-cell bioreporters are practical and reliable analytical tools to assess the toxicity and bioavailability of environmental contaminants, yet evidence has shown that their performance could be affected by different carbon sources. This paper evaluated the influence of carbon sources on the recA gene (ACIAD1385) in a DNA damage-inducible recA::luxCDABE Acinetobacter bioreporter and optimized the induction conditions for its practical application in environmental monitoring. Different carbon sources, including LB, potassium acetate (MMA), sodium citrate (MMC), sodium pyruvate (MMP), and sodium succinate (MMS), significantly influenced (p < 0.05) the bioluminescence intensity of the genotoxicity bioreporter. A reverse transcription quantitative PCR (RT-qPCR) showed the different expression levels of the DNA damage-inducible gene recA (p < 0.05), suggesting that carbon sources influenced the DNA damage response in the Acinetobacter bioreporter at the transcriptional level. Additionally, proteomic analysis identified 122 proteins that were differentially expressed after exposure to mitomycin C in defined media and LB, and 5 of them were related to the DNA damage response, indicating the effects of carbon sources on the DNA damage response in Acinetobacter at the translational level. The repression effect caused by the rich medium, LB, was possibly related to the mechanism of carbon catabolite repression. Our results suggest that the practical application of Acinetobacter bioreporters to the genotoxicity assessment of polycyclic aromatic hydrocarbon (PAH)-contaminated soils could be significantly improved by using a standard medium of defined composition, as this could increase their sensitivity.
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Affiliation(s)
- Bo Jiang
- School of Environment, Tsinghua University, Beijing, 100084, PR China.
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29
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Eltzov E, Slobodnik V, Ionescu RE, Marks RS. On-line biosensor for the detection of putative toxicity in water contaminants. Talanta 2015; 132:583-90. [DOI: 10.1016/j.talanta.2014.09.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 09/17/2014] [Accepted: 09/20/2014] [Indexed: 10/24/2022]
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Park JH, Choi IS, Yang SH. Peptide-catalyzed, bioinspired silicification for single-cell encapsulation in the imidazole-buffered system. Chem Commun (Camb) 2015; 51:5523-5. [DOI: 10.1039/c4cc08544b] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Cytoprotective silica encapsulation of individual yeast cells is achieved by a peptide-catalyzed silicification under mild conditions, inspired by glass sponges.
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Affiliation(s)
- Ji Hun Park
- Center for Cell-Encapsulation Research
- Department of Chemistry
- KAIST
- Daejeon 305-701
- Korea
| | - Insung S. Choi
- Center for Cell-Encapsulation Research
- Department of Chemistry
- KAIST
- Daejeon 305-701
- Korea
| | - Sung Ho Yang
- Department of Chemistry Education
- Korea National University of Education
- Chungbuk 363-791
- Korea
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31
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Gabriel GVM, Viviani VR. Novel application of pH-sensitive firefly luciferases as dual reporter genes for simultaneous ratiometric analysis of intracellular pH and gene expression/location. Photochem Photobiol Sci 2014; 13:1661-70. [PMID: 25285909 DOI: 10.1039/c4pp00278d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Firefly luciferases are widely used as bioluminescent reporter genes for bioimaging and biosensors. Aiming at simultaneous analyses of different gene expression and cellular events, luciferases and GFPs that exhibit distinct bioluminescence and fluorescence colors have been coupled with each promoter, making dual and multicolor reporter systems. Despite their wide use, firefly luciferase bioluminescence spectra are pH-sensitive, resulting in a typical large red shift at acidic pH, a side-effect that may affect some bioanalytical purposes. Although some intracellular pH-indicators employ dual color and fluorescent dyes, none has been considered to benefit from the characteristic spectral pH-sensitivity of firefly luciferases to monitor intracellular pH-associated stress, an important indicator of cell homeostasis. Here we demonstrate a linear relationship between the ratio of intensities in the green and red regions of the bioluminescence spectra and pH using firefly luciferases cloned in our laboratory (Macrolampis sp2 and Cratomorphus distinctus), allowing estimation of E. coli intracellular pH, thus providing a new analytical method for ratiometric intracellular pH-sensing. This is the first dual reporter system that employs a single luciferase gene to simultaneously monitor intracellular pH using spectral changes, and gene expression and/or ATP concentration using the bioluminescence intensity, showing great potential for real time bioanalysis of intracellular processes associated with metabolic changes such as apoptosis, cell death, inflammation and tissue acidification, among the other physiological changes.
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Affiliation(s)
- Gabriele V M Gabriel
- Laboratory of Biochemistry and Biotechnology of Bioluminescence, Department of Physics, Chemistry and Mathematics, Federal University of São Carlos (UFSCar), Sorocaba, SP, Brazil.
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Nano-labelled cells-a functional tool in biomedical applications. Curr Opin Pharmacol 2014; 18:84-90. [PMID: 25271175 DOI: 10.1016/j.coph.2014.09.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 08/30/2014] [Accepted: 09/13/2014] [Indexed: 01/04/2023]
Abstract
Nanotechnology offers an unprecedented number of opportunities for biomedical research, utilizing the unusual functionalities of nanosized materials. Here we describe the recent advances in fabrication and utilization of nanoparticle-labelled cells. We present a brief overview of the most promising techniques, namely layer-by-layer polyelectrolyte assembly on cells and intracellular and extracellular labelling with magnetic nanoparticles. Several important practical application of nanofucntionalized cells, including tissue engineering and tumour therapy, are reviewed.
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Park JH, Kim K, Lee J, Choi JY, Hong D, Yang SH, Caruso F, Lee Y, Choi IS. A Cytoprotective and Degradable Metal-Polyphenol Nanoshell for Single-Cell Encapsulation. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405905] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Park JH, Kim K, Lee J, Choi JY, Hong D, Yang SH, Caruso F, Lee Y, Choi IS. A Cytoprotective and Degradable Metal-Polyphenol Nanoshell for Single-Cell Encapsulation. Angew Chem Int Ed Engl 2014; 53:12420-5. [DOI: 10.1002/anie.201405905] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Indexed: 01/27/2023]
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35
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Michelini E, Cevenini L, Calabretta MM, Calabria D, Roda A. Exploiting in vitro and in vivo bioluminescence for the implementation of the three Rs principle (replacement, reduction, and refinement) in drug discovery. Anal Bioanal Chem 2014; 406:5531-9. [PMID: 24908412 DOI: 10.1007/s00216-014-7925-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 05/22/2014] [Accepted: 05/23/2014] [Indexed: 12/21/2022]
Abstract
Bioluminescence-based analytical tools are suitable for high-throughput and high-content screening assays, finding widespread application in several fields related to the drug discovery process. Cell-based bioluminescence assays, because of their peculiar advantages of predictability, possibility of automation, multiplexing, and miniaturization, seem the most appealing tool for the high demands of the early stages of drug screening. Reporter gene technology and the bioluminescence resonance energy transfer principle are widely used, and receptor binding studies of new agonists/antagonists for a variety of human receptors expressed in different cell lines can be performed. Moreover, bioluminescence can be used for in vitro and in vivo real-time monitoring of pathophysiological processes within living cells and small animals. New luciferases and substrates have recently arrived on the market, further expanding the spectrum of applications. A new generation of probes are also emerging that promise to revolutionize the preclinical imaging market. This formidable toolbox is demonstrated to facilitate the implementation of the three Rs principle in the early drug discovery process, in compliance with ethical and responsible research to reduce cost and improve the reliability and predictability of results.
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Affiliation(s)
- Elisa Michelini
- Department of Chemistry "G. Ciamician, University of Bologna, Via Selmi 2, 40126, Bologna, Italy,
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36
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Cytoprotective Silica Coating of Individual Mammalian Cells through Bioinspired Silicification. Angew Chem Int Ed Engl 2014; 53:8056-9. [DOI: 10.1002/anie.201402280] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 05/08/2014] [Indexed: 11/07/2022]
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37
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Lee J, Choi J, Park JH, Kim MH, Hong D, Cho H, Yang SH, Choi IS. Cytoprotective Silica Coating of Individual Mammalian Cells through Bioinspired Silicification. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201402280] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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38
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Park JH, Yang SH, Lee J, Ko EH, Hong D, Choi IS. Nanocoating of single cells: from maintenance of cell viability to manipulation of cellular activities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2001-2010. [PMID: 24452932 DOI: 10.1002/adma.201304568] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 10/28/2013] [Indexed: 06/03/2023]
Abstract
The chronological progresses in single-cell nanocoating are described. The historical developments in the field are divided into biotemplating, cytocompatible nanocoating, and cells in nano-nutshells, depending on the main research focuses. Each subfield is discussed in conjunction with the others, regarding how and why to manipulate living cells by nanocoating at the single-cell level.
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Affiliation(s)
- Ji Hun Park
- Center for Cell-Encapsulation Research, Department of Chemistry KAIST, Daejeon, 305-701, Korea
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Roda A, Cevenini L, Borg S, Michelini E, Calabretta MM, Schüler D. Bioengineered bioluminescent magnetotactic bacteria as a powerful tool for chip-based whole-cell biosensors. LAB ON A CHIP 2013; 13:4881-4889. [PMID: 24193113 DOI: 10.1039/c3lc50868d] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper describes the generation of genetically engineered bioluminescent magnetotactic bacteria (BL-MTB) and their integration into a microfluidic analytical device to create a portable toxicity detection system. Magnetospirillum gryphiswaldense strain MSR-1 was bioengineered to constitutively express a red-emitting click beetle luciferase whose bioluminescent signal is directly proportional to bacterial viability. The magnetic properties of these bacteria have been exploited as "natural actuators" to transfer the cells in the chip from the reaction to the detection area, optimizing the chip's analytical performance. A robust and cost-effective biosensor for the evaluation of sample toxicity, named MAGNETOX, based on lens-free contact imaging detection, has been developed. A microfluidic chip has been fabricated using multilayered black and transparent polydimethyl siloxane (PDMS) in which BL-MTB are incubated for 30 min with the sample, then moved by microfluidics, trapped, and concentrated in detection chambers by an array of neodymium-iron-boron magnets. The chip is placed in contact with a cooled CCD via a fiber optic taper to perform quantitative bioluminescence imaging after addition of luciferin substrate. A model toxic compound (dimethyl sulfoxide, DMSO) and a bile acid (taurochenodeoxycholic acid, TCDCA) were used to investigate the analytical performance of the MAGNETOX. Incubation with DMSO and TCDCA drastically reduces the bioluminescent signal in a dose-related manner. The generation of bacteria that are both magnetic and bioluminescent combines the advantages of easy 2D cell handling with ultra sensitive detection, offering undoubted potential to develop cell-based biosensors integrated into microfluidic chips.
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Affiliation(s)
- Aldo Roda
- Laboratory of Analytical and Bioanalytical Chemistry, Department of Chemistry "G. Ciamician", Alma Mater Studiorum-University of Bologna, Via Selmi 2, 40126 Bologna, Italy.
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Bio-inspired encapsulation and functionalization of living cells with artificial shells. Colloids Surf B Biointerfaces 2013; 113:483-500. [PMID: 24120320 DOI: 10.1016/j.colsurfb.2013.09.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 12/25/2022]
Abstract
In nature, most single cells do not have structured shells to provide extensive protection apart from diatoms and radiolarians. Fabrication of biomimetic structures based on living cells encapsulated with artificial shells has a great impact on the area of cell-based sensors and devices as well as fundamental studies in cell biology. The past decade has witnessed a rapid increase of research concerning the new fabrication strategies, functionalization and applications of this kind of encapsulated cells. In this review, the latest fabrication strategies on how to encapsulate living cells with functional shells based on the diversity of artificial shells are discussed: hydrogel matrix shells, sol-gel shells, polymeric shells, and induced mineral shells. Classical different types of artificial shells are introduced and their advantages and disadvantages are compared and explained. The biomedical applications of encapsulated cells with particular emphasis on cell implant protection, cell separation, biosensors, cell therapy and tissue engineering are also described and a recap of this review and the future perspectives on these active areas is given finally.
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