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Welden R, Das A, Krause S, Schöning MJ, Wagner PH, Wagner T. Actively Driven Light-Addressable Sensor/Actuator System for Automated pH Control for the Integration in Lab-On-A-Chip (LoC) Platforms. ACS Sens 2024; 9:1533-1544. [PMID: 38445576 DOI: 10.1021/acssensors.3c02712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
The miniaturization of microfluidic systems usually comes at the cost of more difficult integration of sensors and actuators inside the channel. As an alternative, this work demonstrates the embedding of semiconductor-based sensor and actuator technologies that can be spatially and temporally controlled from outside the channel using light. The first element is a light-addressable potentiometric sensor, consisting of an Al/Si/SiO2/Si3N4 structure, that can measure pH changes at the Si3N4/electrolyte interface. The pH value is a crucial factor in biological and chemical systems, and besides measuring, it is often important to bring the system out of equilibrium or to adjust and control precisely the surrounding medium. This can be done photoelectrocatalytically by utilizing light-addressable electrodes. These consist of a glass/SnO2:F/TiO2 structure, whereby direct charge transfer between the TiO2 and the electrolyte leads to a pH change upon irradiation. To complement the advantages of both, we integrated a light-addressable sensor with a pH sensitivity of 41.5 mV·pH-1 and a light-addressable electrode into a microfluidic setup. Here, we demonstrated a simultaneous operation with the ability to generate and record pH gradients inside a channel under static and dynamic flow conditions. The results show that dependent on the light-addressable electrode (LAE)-illumination conditions, pH changes up to ΔpH of 2.75 and of 3.52 under static and dynamic conditions, respectively, were spatially monitored by the light-addressable potentiometric sensor. After flushing with fresh buffer solution, the pH returned to its initial value. Depending on the LAE illumination, pH gradients with a maximum pH change of ΔpH of 1.42 were tailored perpendicular to the flow direction. In a final experiment, synchronous LAE illumination led to a stepwise increase in the pH inside the channel.
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Affiliation(s)
- Rene Welden
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, Jülich 52428, Germany
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, Leuven 3001, Belgium
| | - Anirban Das
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, U.K
| | - Steffi Krause
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, U.K
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, Jülich 52428, Germany
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich GmbH, Jülich 52428, Germany
| | - Patrick H Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, Jülich 52428, Germany
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, Leuven 3001, Belgium
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, Jülich 52428, Germany
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich GmbH, Jülich 52428, Germany
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2
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Wendlandt T, Koch C, Britz B, Liedek A, Schmidt N, Werner S, Gleba Y, Vahidpour F, Welden M, Poghossian A, Schöning MJ, Eber FJ, Jeske H, Wege C. Facile Purification and Use of Tobamoviral Nanocarriers for Antibody-Mediated Display of a Two-Enzyme System. Viruses 2023; 15:1951. [PMID: 37766357 PMCID: PMC10536799 DOI: 10.3390/v15091951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/11/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Immunosorbent turnip vein clearing virus (TVCV) particles displaying the IgG-binding domains D and E of Staphylococcus aureus protein A (PA) on every coat protein (CP) subunit (TVCVPA) were purified from plants via optimized and new protocols. The latter used polyethylene glycol (PEG) raw precipitates, from which virions were selectively re-solubilized in reverse PEG concentration gradients. This procedure improved the integrity of both TVCVPA and the wild-type subgroup 3 tobamovirus. TVCVPA could be loaded with more than 500 IgGs per virion, which mediated the immunocapture of fluorescent dyes, GFP, and active enzymes. Bi-enzyme ensembles of cooperating glucose oxidase and horseradish peroxidase were tethered together on the TVCVPA carriers via a single antibody type, with one enzyme conjugated chemically to its Fc region, and the other one bound as a target, yielding synthetic multi-enzyme complexes. In microtiter plates, the TVCVPA-displayed sugar-sensing system possessed a considerably increased reusability upon repeated testing, compared to the IgG-bound enzyme pair in the absence of the virus. A high coverage of the viral adapters was also achieved on Ta2O5 sensor chip surfaces coated with a polyelectrolyte interlayer, as a prerequisite for durable TVCVPA-assisted electrochemical biosensing via modularly IgG-assembled sensor enzymes.
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Affiliation(s)
- Tim Wendlandt
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
| | - Claudia Koch
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
| | - Beate Britz
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
| | - Anke Liedek
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
| | - Nora Schmidt
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
| | - Stefan Werner
- Nambawan Biotech GmbH/Now at Icon Genetics GmbH, Weinbergweg 22, 06120 Halle, Germany;
| | - Yuri Gleba
- Nomad Bioscience GmbH, Weinbergweg 22, 06120 Halle, Germany;
| | - Farnoosh Vahidpour
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; (F.V.); (M.W.); (M.J.S.)
| | - Melanie Welden
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; (F.V.); (M.W.); (M.J.S.)
| | | | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; (F.V.); (M.W.); (M.J.S.)
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Fabian J. Eber
- Department of Mechanical and Process Engineering, Offenburg University of Applied Sciences, 77652 Offenburg, Germany;
| | - Holger Jeske
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems, Molecular and Synthetic Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany; (T.W.); (C.K.); (N.S.)
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3
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Welden M, Poghossian A, Vahidpour F, Wendlandt T, Keusgen M, Christina Wege, Schöning MJ. Capacitive field-effect biosensor modified with a stacked bilayer of weak polyelectrolyte and plant virus particles as enzyme nanocarriers. Bioelectrochemistry 2023; 151:108397. [PMID: 36906982 DOI: 10.1016/j.bioelechem.2023.108397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 01/29/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023]
Abstract
This work presents a new approach for the development of field-effect biosensors based on an electrolyte-insulator-semiconductor capacitor (EISCAP) modified with a stacked bilayer of weak polyelectrolyte and tobacco mosaic virus (TMV) particles as enzyme nanocarriers. With the aim to increase the surface density of virus particles and thus, to achieve a dense immobilization of enzymes, the negatively charged TMV particles were loaded onto the EISCAP surface modified with a positively charged poly(allylamine hydrochloride) (PAH) layer. The PAH/TMV bilayer was prepared on the Ta2O5-gate surface by means of layer-by-layer technique. The bare and differently modified EISCAP surfaces were physically characterized by fluorescence microscopy, zeta-potential measurements, atomic force microscopy and scanning electron microscopy. Transmission electron microscopy was used to scrutinize the PAH effect on TMV adsorption in a second system. Finally, a highly sensitive TMV-assisted EISCAP antibiotics biosensor was realized by immobilizing the enzyme penicillinase onto the TMV surface. This PAH/TMV bilayer-modified EISCAP biosensor was electrochemically characterized in solutions with different penicillin concentrations via capacitance-voltage and constant-capacitance methods. The biosensor possessed a mean penicillin sensitivity of 113 mV/dec in a concentration range from 0.1 mM to 5 mM.
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Affiliation(s)
- Melanie Welden
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; Institute of Pharmaceutical Chemistry, Philipps University Marburg, 35032 Marburg, Germany.
| | | | - Farnoosh Vahidpour
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany.
| | - Tim Wendlandt
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70569 Stuttgart, Germany.
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, 35032 Marburg, Germany.
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70569 Stuttgart, Germany.
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany.
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Yongabi D, Khorshid M, Losada‐Pérez P, Bakhshi Sichani S, Jooken S, Stilman W, Theßeling F, Martens T, Van Thillo T, Verstrepen K, Dedecker P, Vanden Berghe P, Lettinga MP, Bartic C, Lieberzeit P, Schöning MJ, Thoelen R, Fransen M, Wübbenhorst M, Wagner P. Synchronized, Spontaneous, and Oscillatory Detachment of Eukaryotic Cells: A New Tool for Cell Characterization and Identification. Adv Sci (Weinh) 2022; 9:e2200459. [PMID: 35780480 PMCID: PMC9403630 DOI: 10.1002/advs.202200459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Despite the importance of cell characterization and identification for diagnostic and therapeutic applications, developing fast and label-free methods without (bio)-chemical markers or surface-engineered receptors remains challenging. Here, we exploit the natural cellular response to mild thermal stimuli and propose a label- and receptor-free method for fast and facile cell characterization. Cell suspensions in a dedicated sensor are exposed to a temperature gradient, which stimulates synchronized and spontaneous cell-detachment with sharply defined time-patterns, a phenomenon unknown from literature. These patterns depend on metabolic activity (controlled through temperature, nutrients, and drugs) and provide a library of cell-type-specific indicators, allowing to distinguish several yeast strains as well as cancer cells. Under specific conditions, synchronized glycolytic-type oscillations are observed during detachment of mammalian and yeast-cell ensembles, providing additional cell-specific signatures. These findings suggest potential applications for cell viability analysis and for assessing the collective response of cancer cells to drugs.
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Affiliation(s)
- Derick Yongabi
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Mehran Khorshid
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Patricia Losada‐Pérez
- Faculté des SciencesExperimental Soft Matter and Thermal Physics (EST)Université Libre de BruxellesBoulevard du Triomphe ACC.2BrusselsB‐1050Belgium
| | - Soroush Bakhshi Sichani
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Stijn Jooken
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Wouter Stilman
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Florian Theßeling
- Laboratory for Systems BiologyVIB Center for MicrobiologyDepartment of Microbial and Molecular SystemsKU LeuvenGaston Geenslaan 1HeverleeB‐3001Belgium
| | - Tobie Martens
- Laboratory for Enteric Neuroscience (LENS)Department of Chronic Diseases Metabolism and AgeingKU LeuvenHerestraat 49LeuvenB‐3000Belgium
| | - Toon Van Thillo
- BiochemistryMolecular and Structural BiologyKU LeuvenCelestijnenlaan 200 GLeuvenB‐3001Belgium
| | - Kevin Verstrepen
- Laboratory for Systems BiologyVIB Center for MicrobiologyDepartment of Microbial and Molecular SystemsKU LeuvenGaston Geenslaan 1HeverleeB‐3001Belgium
| | - Peter Dedecker
- BiochemistryMolecular and Structural BiologyKU LeuvenCelestijnenlaan 200 GLeuvenB‐3001Belgium
| | - Pieter Vanden Berghe
- Laboratory for Enteric Neuroscience (LENS)Department of Chronic Diseases Metabolism and AgeingKU LeuvenHerestraat 49LeuvenB‐3000Belgium
| | - Minne Paul Lettinga
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
- Biomacromolecular Systems and Processes (IBI‐4)Research Center Jülich GmbHLeo‐Brandt‐StraßeD‐52425JülichGermany
| | - Carmen Bartic
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Peter Lieberzeit
- Faculty of ChemistryDepartment of Physical ChemistryUniversity of ViennaWähringer, Straße 38ViennaA‐1090Austria
| | - Michael J. Schöning
- Institute of Nano‐ and Biotechnologies INBAachen University of Applied SciencesHeinrich‐Mußmann‐Straße 1D‐52428JülichGermany
| | - Ronald Thoelen
- Institute for Materials ResearchHasselt UniversityWetenschapspark 1DiepenbeekB‐3590Belgium
| | - Marc Fransen
- Laboratory of Peroxisome Biology and Intracellular CommunicationDepartment of Cellular and Molecular MedicineKU LeuvenHerestraat 49LeuvenB‐3000Belgium
| | - Michael Wübbenhorst
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
| | - Patrick Wagner
- Laboratory for Soft Matter and BiophysicsDepartment of Physics and AstronomyKU LeuvenCelestijnenlaan 200 DLeuvenB‐3001Belgium
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Welden R, Komesu CAN, Wagner PH, Schöning MJ, Wagner T. Photoelectrochemical enzymatic penicillin biosensor: A proof‐of‐concept experiment. Electrochemical Science Adv 2022. [DOI: 10.1002/elsa.202100131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Rene Welden
- Institute of Nano‐ and Biotechnologies Aachen University of Applied Sciences Jülich Germany
- Laboratory for Soft Matter and Biophysics Katholieke Universiteit Leuven Leuven Belgium
| | | | - Patrick H. Wagner
- Laboratory for Soft Matter and Biophysics Katholieke Universiteit Leuven Leuven Belgium
| | - Michael J. Schöning
- Institute of Nano‐ and Biotechnologies Aachen University of Applied Sciences Jülich Germany
- Institute of Biological Information Processing (IBI‐3) Forschungszentrum Jülich Jülich Germany
| | - Torsten Wagner
- Institute of Nano‐ and Biotechnologies Aachen University of Applied Sciences Jülich Germany
- Institute of Biological Information Processing (IBI‐3) Forschungszentrum Jülich Jülich Germany
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Özsoylu D, Wagner T, Schöning MJ. Electrochemical Cell-based Biosensors for Biomedical Applications. Curr Top Med Chem 2022; 22:713-733. [DOI: 10.2174/1568026622666220304213617] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/31/2021] [Accepted: 01/30/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Electrochemical cell-based biosensors have been showing increasing interest within the last 15 years, with a large number of reports generally dealing with the sensors’ sensitivity, selectivity, stability, signal-to-noise ratio, spatiotemporal resolution, etc. However, only a few of them are now available as commercial products on the market. In this review, technological advances, current challenges and opportunities of electrochemical cell-based biosensors are presented. The article encompasses emerging studies, mainly focusing on the last five years (from 2016 to mid 2021), towards cell-based biological field-effect devices, cell-based impedimetric sensors and cell-based microelectrode arrays. In addition, special attention lies on recent progress in recording at the single-cellular level, including intracellular monitoring with high spatiotemporal resolution as well as integration into microfluidics for lab-on-a-chip applications. Moreover, a comprehensive discussion on challenges and future perspectives will address the future potential of electrochemical cell-based biosensors.
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Affiliation(s)
- Dua Özsoylu
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Jülich, Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Jülich, Germany
- Institute of Biological Information Processing (IBI-3), Research Centre Jülich GmbH, Jülich, Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Jülich, Germany
- Institute of Biological Information Processing (IBI-3), Research Centre Jülich GmbH, Jülich, Germany
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Welden M, Poghossian A, Vahidpour F, Wendlandt T, Keusgen M, Wege C, Schöning MJ. Towards Multi-Analyte Detection with Field-Effect Capacitors Modified with Tobacco Mosaic Virus Bioparticles as Enzyme Nanocarriers. Biosensors (Basel) 2022; 12:bios12010043. [PMID: 35049671 PMCID: PMC8773754 DOI: 10.3390/bios12010043] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/07/2022] [Accepted: 01/13/2022] [Indexed: 05/07/2023]
Abstract
Utilizing an appropriate enzyme immobilization strategy is crucial for designing enzyme-based biosensors. Plant virus-like particles represent ideal nanoscaffolds for an extremely dense and precise immobilization of enzymes, due to their regular shape, high surface-to-volume ratio and high density of surface binding sites. In the present work, tobacco mosaic virus (TMV) particles were applied for the co-immobilization of penicillinase and urease onto the gate surface of a field-effect electrolyte-insulator-semiconductor capacitor (EISCAP) with a p-Si-SiO2-Ta2O5 layer structure for the sequential detection of penicillin and urea. The TMV-assisted bi-enzyme EISCAP biosensor exhibited a high urea and penicillin sensitivity of 54 and 85 mV/dec, respectively, in the concentration range of 0.1-3 mM. For comparison, the characteristics of single-enzyme EISCAP biosensors modified with TMV particles immobilized with either penicillinase or urease were also investigated. The surface morphology of the TMV-modified Ta2O5-gate was analyzed by scanning electron microscopy. Additionally, the bi-enzyme EISCAP was applied to mimic an XOR (Exclusive OR) enzyme logic gate.
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Affiliation(s)
- Melanie Welden
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; (M.W.); (F.V.)
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, 35032 Marburg, Germany;
| | | | - Farnoosh Vahidpour
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; (M.W.); (F.V.)
| | - Tim Wendlandt
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70569 Stuttgart, Germany; (T.W.); (C.W.)
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, 35032 Marburg, Germany;
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70569 Stuttgart, Germany; (T.W.); (C.W.)
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany; (M.W.); (F.V.)
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
- Correspondence:
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Özsoylu D, Isik T, Demir MM, Schöning MJ, Wagner T. "On-Chip"-Cryopreservation For Cell-Based Biosensors and Lab-On-A-Chip Systems. Cryobiology 2021. [DOI: 10.1016/j.cryobiol.2021.11.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Karschuck T, Kaulen C, Poghossian A, Wagner PH, Schöning MJ. Gold nanoparticle‐modified capacitive field‐effect sensors: Studying the surface density of nanoparticles and coupling of charged polyelectrolyte macromolecules. Electrochemical Science Advances 2021. [DOI: 10.1002/elsa.202100179] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Affiliation(s)
- Tobias Karschuck
- Institute of Nano‐ und Biotechnologies Aachen University of Applied Sciences Jülich Germany
| | - Corinna Kaulen
- Institute of Nano‐ und Biotechnologies Aachen University of Applied Sciences Jülich Germany
| | | | | | - Michael J. Schöning
- Institute of Nano‐ und Biotechnologies Aachen University of Applied Sciences Jülich Germany
- Institute of Biological Information Processing (IBI‐3) Forschungszentrum Jülich Jülich Germany
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Poghossian A, Welden R, Buniatyan VV, Schöning MJ. An Array of On-Chip Integrated, Individually Addressable Capacitive Field-Effect Sensors with Control Gate: Design and Modelling. Sensors (Basel) 2021; 21:s21186161. [PMID: 34577368 PMCID: PMC8473037 DOI: 10.3390/s21186161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 11/21/2022]
Abstract
The on-chip integration of multiple biochemical sensors based on field-effect electrolyte-insulator-semiconductor capacitors (EISCAP) is challenging due to technological difficulties in realization of electrically isolated EISCAPs on the same Si chip. In this work, we present a new simple design for an array of on-chip integrated, individually electrically addressable EISCAPs with an additional control gate (CG-EISCAP). The existence of the CG enables an addressable activation or deactivation of on-chip integrated individual CG-EISCAPs by simple electrical switching the CG of each sensor in various setups, and makes the new design capable for multianalyte detection without cross-talk effects between the sensors in the array. The new designed CG-EISCAP chip was modelled in so-called floating/short-circuited and floating/capacitively-coupled setups, and the corresponding electrical equivalent circuits were developed. In addition, the capacitance-voltage curves of the CG-EISCAP chip in different setups were simulated and compared with that of a single EISCAP sensor. Moreover, the sensitivity of the CG-EISCAP chip to surface potential changes induced by biochemical reactions was simulated and an impact of different parameters, such as gate voltage, insulator thickness and doping concentration in Si, on the sensitivity has been discussed.
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Affiliation(s)
- Arshak Poghossian
- MicroNanoBio, Liebigstr. 4, 40479 Düsseldorf, Germany
- Correspondence: (A.P.); (M.J.S.)
| | - Rene Welden
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany;
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - Vahe V. Buniatyan
- Department of Microelectronics and Biomedical Devices, National Polytechnic University of Armenia (NPUA), 105 Teryan St., NPUA, Yerevan 0009, Armenia;
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany;
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich, 52425 Jülich, Germany
- Correspondence: (A.P.); (M.J.S.)
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Jablonski M, Poghossian A, Keusgen M, Wege C, Schöning MJ. Detection of plant virus particles with a capacitive field-effect sensor. Anal Bioanal Chem 2021; 413:5669-5678. [PMID: 34244834 PMCID: PMC8270236 DOI: 10.1007/s00216-021-03448-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/27/2021] [Accepted: 05/31/2021] [Indexed: 10/25/2022]
Abstract
Plant viruses are major contributors to crop losses and induce high economic costs worldwide. For reliable, on-site and early detection of plant viral diseases, portable biosensors are of great interest. In this study, a field-effect SiO2-gate electrolyte-insulator-semiconductor (EIS) sensor was utilized for the label-free electrostatic detection of tobacco mosaic virus (TMV) particles as a model plant pathogen. The capacitive EIS sensor has been characterized regarding its TMV sensitivity by means of constant-capacitance method. The EIS sensor was able to detect biotinylated TMV particles from a solution with a TMV concentration as low as 0.025 nM. A good correlation between the registered EIS sensor signal and the density of adsorbed TMV particles assessed from scanning electron microscopy images of the SiO2-gate chip surface was observed. Additionally, the isoelectric point of the biotinylated TMV particles was determined via zeta potential measurements and the influence of ionic strength of the measurement solution on the TMV-modified EIS sensor signal has been studied.
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Affiliation(s)
- Melanie Jablonski
- Institute of Nano- and Biotechnologies, FH Aachen, Heinrich-Mußmann-Str. 1, 52428, Jülich, Germany
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marbacher Weg 6-10, 35032, Marburg, Germany
| | | | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps University Marburg, Marbacher Weg 6-10, 35032, Marburg, Germany
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569, Stuttgart, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, FH Aachen, Heinrich-Mußmann-Str. 1, 52428, Jülich, Germany.
- Institute of Biological Information Processing (IBI-3), Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
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12
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Wert S, Iken H, Schöning MJ, Matysik F. Development of a Temperature‐pulse Enhanced Electrochemical Glucose Biosensor and Characterization of its Stability via Scanning Electrochemical Microscopy. ELECTROANAL 2021. [DOI: 10.1002/elan.202100089] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Stefan Wert
- Institute of Analytical Chemistry, Chemo- and Biosensors University of Regensburg Universitätsstr. 31 93053 Regensburg Germany
| | - Heiko Iken
- Institute of Nano- and Biotechnologies (INB) FH Aachen, Campus Jülich Heinrich-Mußmann-Str. 1 52428 Jülich Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB) FH Aachen, Campus Jülich Heinrich-Mußmann-Str. 1 52428 Jülich Germany
| | - Frank‐Michael Matysik
- Institute of Analytical Chemistry, Chemo- and Biosensors University of Regensburg Universitätsstr. 31 93053 Regensburg Germany
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13
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Molinnus D, Drinic A, Iken H, Kröger N, Zinser M, Smeets R, Köpf M, Kopp A, Schöning MJ. Towards a flexible electrochemical biosensor fabricated from biocompatible Bombyx mori silk. Biosens Bioelectron 2021; 183:113204. [PMID: 33836429 DOI: 10.1016/j.bios.2021.113204] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/22/2021] [Accepted: 03/24/2021] [Indexed: 12/13/2022]
Abstract
In modern days, there is an increasing relevance of and demand for flexible and biocompatible sensors for in-vivo and epidermal applications. One promising strategy is the implementation of biological (natural) polymers, which offer new opportunities for flexible biosensor devices due to their high biocompatibility and adjustable biodegradability. As a proof-of-concept experiment, a biosensor was fabricated by combining thin- (for Pt working- and counter electrode) and thick-film (for Ag/AgCl quasi-reference electrode) technologies: The biosensor consists of a fully bio-based and biodegradable fibroin substrate derived from silk fibroin of the silkworm Bombyx mori combined with immobilized enzyme glucose oxidase. The flexible glucose biosensor is encapsulated by a biocompatible silicon rubber which is certificated for a safe use onto human skin. Characterization of the sensor set-up is exemplarily demonstrated by glucose measurements in buffer and Ringer's solution, while the stability of the quasi-reference electrode has been investigated versus a commercial Ag/AgCl reference electrode. Repeated bending studies validated the mechanical properties of the electrode structures. The cross-sensitivity of the biosensor against ascorbic acid, noradrenaline and adrenaline was investigated, too. Additionally, biocompatibility and degradation tests of the silk fibroin with and without thin-film platinum electrodes were carried out.
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Affiliation(s)
- Denise Molinnus
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmann-Strasse 1, 52428, Jülich, Germany
| | - Aleksander Drinic
- Fibrothelium GmbH, TRIWO Technopark Aachen, Philipsstr. 8, 52068, Aachen, Germany
| | - Heiko Iken
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmann-Strasse 1, 52428, Jülich, Germany
| | - Nadja Kröger
- Department of Plastic, Reconstructive and Aesthetic Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Max Zinser
- Department of Plastic, Reconstructive and Aesthetic Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germany
| | - Ralf Smeets
- Department of Oral and Maxillofacial Surgery, Division of Regenerative Orofacial Medicine, University Medical Center Hamburg-Eppendorf, Martinistraße 52, Hamburg, Germany
| | - Marius Köpf
- Fibrothelium GmbH, TRIWO Technopark Aachen, Philipsstr. 8, 52068, Aachen, Germany
| | - Alexander Kopp
- Fibrothelium GmbH, TRIWO Technopark Aachen, Philipsstr. 8, 52068, Aachen, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmann-Strasse 1, 52428, Jülich, Germany; Forschungszentrum Jülich GmbH, Institute of Biological Information Processing (IBI-3), Wilhelm-Johnen-Strasse 6, 52425, Jülich, Germany.
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14
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Özsoylu D, Isık T, Demir MM, Schöning MJ, Wagner T. Cryopreservation of a cell-based biosensor chip modified with elastic polymer fibers enabling ready-to-use on-site applications. Biosens Bioelectron 2021; 177:112983. [PMID: 33535119 DOI: 10.1016/j.bios.2021.112983] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 12/30/2020] [Accepted: 01/05/2021] [Indexed: 12/14/2022]
Abstract
An efficient preservation of a cell-based biosensor chip to achieve a ready-to-use on-site system is still very challenging as the chip contains a living component such as adherent mammalian cells. Herein, we propose a strategy called on-sensor cryopreservation (OSC), which enables the adherent cells to be preserved by freezing (-80 °C) on a biosensor surface, such as the light-addressable potentiometric sensor (LAPS). Adherent cells on rigid surfaces are prone to cryo-injury; thus, the surface was modified to enhance the cell recovery for OSC. It relies on i) the integration of elastic electrospun fibers composed of polyethylene vinyl acetate (PEVA), which has a high thermal expansion coefficient and low glass-transition temperature, and ii) the treatment with O2 plasma. The modified sensor is integrated into a microfluidic chip system not only to decrease the thermal mass, which is critical for fast thawing, but also to provide a precisely controlled micro-environment. This novel cryo-chip system is effective for keeping cells viable during OSC. As a proof-of-concept for the applicability of a ready-to-use format, the extracellular acidification of cancer cells (CHO-K1) was evaluated by differential LAPS measurements after thawing. Results show, for the first time, that the OSC strategy using the cryo-chip allows label-free and quantitative measurements directly after thawing, which eliminates additional post-thaw culturing steps. The freezing of the chips containing cells at the manufacturing stage and sending them via a cold-chain transport could open up a new possibility for a ready-to-use on-site system.
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Affiliation(s)
- Dua Özsoylu
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Medical Biology and Genetics, Graduate School of Health Sciences, Dokuz Eylül University, Balcova, 35340, Izmir, Turkey
| | - Tuğba Isık
- Department of Materials Science and Engineering, Izmir Institute of Technology, 35430, Izmir, Turkey; School of Chemistry, University of Bristol, Bristol, UK
| | - Mustafa M Demir
- Department of Materials Science and Engineering, Izmir Institute of Technology, 35430, Izmir, Turkey
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Biological Information Processing (IBI-3), Research Centre Jülich GmbH, 52425, Jülich, Germany.
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Biological Information Processing (IBI-3), Research Centre Jülich GmbH, 52425, Jülich, Germany.
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15
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Muschallik L, Kipp CR, Recker I, Bongaerts J, Pohl M, Gellissen M, Schöning MJ, Selmer T, Siegert P. Synthesis of α-hydroxy ketones and vicinal diols with the Bacillus licheniformis DSM 13 T butane-2,3-diol dehydrogenase. J Biotechnol 2020; 324:61-70. [PMID: 32976868 DOI: 10.1016/j.jbiotec.2020.09.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/18/2020] [Indexed: 10/23/2022]
Abstract
The enantioselective synthesis of α-hydroxy ketones and vicinal diols is an intriguing field because of the broad applicability of these molecules. Although, butandiol dehydrogenases are known to play a key role in the production of 2,3-butandiol, their potential as biocatalysts is still not well studied. Here, we investigate the biocatalytic properties of the meso-butanediol dehydrogenase from Bacillus licheniformis DSM 13T (BlBDH). The encoding gene was cloned with an N-terminal StrepII-tag and recombinantly overexpressed in E. coli. BlBDH is highly active towards several non-physiological diketones and α-hydroxyketones with varying aliphatic chain lengths or even containing phenyl moieties. By adjusting the reaction parameters in biotransformations the formation of either the α-hydroxyketone intermediate or the diol can be controlled.
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Affiliation(s)
- Lukas Muschallik
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Carina Ronja Kipp
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Inga Recker
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Johannes Bongaerts
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Martina Pohl
- IBG-1: Biotechnology, Forschungszentrum Jülich, 52425, Jülich, Germany
| | - Melanie Gellissen
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany
| | - Petra Siegert
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428, Jülich, Germany.
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16
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Poghossian A, Schöning MJ. Capacitive Field-Effect EIS Chemical Sensors and Biosensors: A Status Report. Sensors (Basel) 2020; 20:s20195639. [PMID: 33023133 PMCID: PMC7584023 DOI: 10.3390/s20195639] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/21/2020] [Accepted: 09/29/2020] [Indexed: 02/07/2023]
Abstract
Electrolyte-insulator-semiconductor (EIS) field-effect sensors belong to a new generation of electronic chips for biochemical sensing, enabling a direct electronic readout. The review gives an overview on recent advances and current trends in the research and development of chemical sensors and biosensors based on the capacitive field-effect EIS structure—the simplest field-effect device, which represents a biochemically sensitive capacitor. Fundamental concepts, physicochemical phenomena underlying the transduction mechanism and application of capacitive EIS sensors for the detection of pH, ion concentrations, and enzymatic reactions, as well as the label-free detection of charged molecules (nucleic acids, proteins, and polyelectrolytes) and nanoparticles, are presented and discussed.
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Affiliation(s)
- Arshak Poghossian
- MicroNanoBio, Liebigstr. 4, 40479 Düsseldorf, Germany
- Correspondence: (A.P.); (M.J.S.)
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
- Correspondence: (A.P.); (M.J.S.)
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17
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Molinnus D, Beging S, Lowis C, Schöning MJ. Towards a Multi-Enzyme Capacitive Field-Effect Biosensor by Comparative Study of Drop-Coating and Nano-Spotting Technique. Sensors (Basel) 2020; 20:s20174924. [PMID: 32878210 PMCID: PMC7506612 DOI: 10.3390/s20174924] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/24/2020] [Accepted: 08/29/2020] [Indexed: 02/05/2023]
Abstract
Multi-enzyme immobilization onto a capacitive field-effect biosensor by nano-spotting technique is presented. The nano-spotting technique allows to immobilize different enzymes simultaneously on the sensor surface with high spatial resolution without additional photolithographical patterning. The amount of applied enzymatic cocktail on the sensor surface can be tailored. Capacitive electrolyte-insulator-semiconductor (EIS) field-effect sensors with Ta2O5 as pH-sensitive transducer layer have been chosen to immobilize the three different (pL droplets) enzymes penicillinase, urease, and glucose oxidase. Nano-spotting immobilization is compared to conventional drop-coating method by defining different geometrical layouts on the sensor surface (fully, half-, and quarter-spotted). The drop diameter is varying between 84 µm and 102 µm, depending on the number of applied drops (1 to 4) per spot. For multi-analyte detection, penicillinase and urease are simultaneously nano-spotted on the EIS sensor. Sensor characterization was performed by C/V (capacitance/voltage) and ConCap (constant capacitance) measurements. Average penicillin, glucose, and urea sensitivities for the spotted enzymes were 81.7 mV/dec, 40.5 mV/dec, and 68.9 mV/dec, respectively.
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Affiliation(s)
- Denise Molinnus
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany; (D.M.); (S.B.); (C.L.)
| | - Stefan Beging
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany; (D.M.); (S.B.); (C.L.)
| | - Carsten Lowis
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany; (D.M.); (S.B.); (C.L.)
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, 52428 Jülich, Germany; (D.M.); (S.B.); (C.L.)
- Institute of Biological Information Processing (IBI-3), Research Center Jülich, 52425 Jülich, Germany
- Correspondence:
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18
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Welden R, Schöning MJ, Wagner PH, Wagner T. Light-Addressable Electrodes for Dynamic and Flexible Addressing of Biological Systems and Electrochemical Reactions. Sensors (Basel) 2020; 20:s20061680. [PMID: 32192226 PMCID: PMC7147159 DOI: 10.3390/s20061680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/13/2020] [Accepted: 03/13/2020] [Indexed: 01/25/2023]
Abstract
In this review article, we are going to present an overview on possible applications of light-addressable electrodes (LAE) as actuator/manipulation devices besides classical electrode structures. For LAEs, the electrode material consists of a semiconductor. Illumination with a light source with the appropiate wavelength leads to the generation of electron-hole pairs which can be utilized for further photoelectrochemical reaction. Due to recent progress in light-projection technologies, highly dynamic and flexible illumination patterns can be generated, opening new possibilities for light-addressable electrodes. A short introduction on semiconductor–electrolyte interfaces with light stimulation is given together with electrode-design approaches. Towards applications, the stimulation of cells with different electrode materials and fabrication designs is explained, followed by analyte-manipulation strategies and spatially resolved photoelectrochemical deposition of different material types.
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Affiliation(s)
- Rene Welden
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, 52428 Jülich, Germany; (R.W.); (M.J.S.)
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, 52428 Jülich, Germany; (R.W.); (M.J.S.)
- Institute of Complex Systems (ICS-8), Research Center Jülich GmbH, 52428 Jülich, Germany
| | - Patrick H. Wagner
- Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Heinrich-Mußmann-Str. 1, 52428 Jülich, Germany; (R.W.); (M.J.S.)
- Institute of Complex Systems (ICS-8), Research Center Jülich GmbH, 52428 Jülich, Germany
- Correspondence: ; Tel.: +49-241-6009-53766
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19
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Muschallik L, Molinnus D, Jablonski M, Kipp CR, Bongaerts J, Pohl M, Wagner T, Schöning MJ, Selmer T, Siegert P. Synthesis of α-hydroxy ketones and vicinal (R,R)-diols by Bacillus clausii DSM 8716T butanediol dehydrogenase. RSC Adv 2020; 10:12206-12216. [PMID: 35497574 PMCID: PMC9050739 DOI: 10.1039/d0ra02066d] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 03/05/2020] [Indexed: 12/04/2022] Open
Abstract
α-hydroxy ketones (HK) and 1,2-diols are important building blocks for fine chemical synthesis. Here, we describe the R-selective 2,3-butanediol dehydrogenase from B. clausii DSM 8716T (BcBDH) that belongs to the metal-dependent medium chain dehydrogenases/reductases family (MDR) and catalyzes the selective asymmetric reduction of prochiral 1,2-diketones to the corresponding HK and, in some cases, the reduction of the same to the corresponding 1,2-diols. Aliphatic diketones, like 2,3-pentanedione, 2,3-hexanedione, 5-methyl-2,3-hexanedione, 3,4-hexanedione and 2,3-heptanedione are well transformed. In addition, surprisingly alkyl phenyl dicarbonyls, like 2-hydroxy-1-phenylpropan-1-one and phenylglyoxal are accepted, whereas their derivatives with two phenyl groups are not substrates. Supplementation of Mn2+ (1 mM) increases BcBDH's activity in biotransformations. Furthermore, the biocatalytic reduction of 5-methyl-2,3-hexanedione to mainly 5-methyl-3-hydroxy-2-hexanone with only small amounts of 5-methyl-2-hydroxy-3-hexanone within an enzyme membrane reactor is demonstrated. Reduction of symmetric or asymmetric vicinal diketones with BcBDH leads to the synthesis of either α-hydroxyketones or vicinal diols.![]()
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Affiliation(s)
- Lukas Muschallik
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Denise Molinnus
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Melanie Jablonski
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Carina Ronja Kipp
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Johannes Bongaerts
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Martina Pohl
- IBG-1: Biotechnology
- Forschungszentrum Jülich
- 52425 Jülich
- Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
| | - Petra Siegert
- Institute of Nano- and Biotechnologies
- Aachen University of Applied Sciences
- 52428 Jülich
- Germany
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20
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Poghossian A, Jablonski M, Molinnus D, Wege C, Schöning MJ. Field-Effect Sensors for Virus Detection: From Ebola to SARS-CoV-2 and Plant Viral Enhancers. Front Plant Sci 2020; 11:598103. [PMID: 33329662 PMCID: PMC7732584 DOI: 10.3389/fpls.2020.598103] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 10/26/2020] [Indexed: 05/06/2023]
Abstract
Coronavirus disease 2019 (COVID-19) is a novel human infectious disease provoked by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Currently, no specific vaccines or drugs against COVID-19 are available. Therefore, early diagnosis and treatment are essential in order to slow the virus spread and to contain the disease outbreak. Hence, new diagnostic tests and devices for virus detection in clinical samples that are faster, more accurate and reliable, easier and cost-efficient than existing ones are needed. Due to the small sizes, fast response time, label-free operation without the need for expensive and time-consuming labeling steps, the possibility of real-time and multiplexed measurements, robustness and portability (point-of-care and on-site testing), biosensors based on semiconductor field-effect devices (FEDs) are one of the most attractive platforms for an electrical detection of charged biomolecules and bioparticles by their intrinsic charge. In this review, recent advances and key developments in the field of label-free detection of viruses (including plant viruses) with various types of FEDs are presented. In recent years, however, certain plant viruses have also attracted additional interest for biosensor layouts: Their repetitive protein subunits arranged at nanometric spacing can be employed for coupling functional molecules. If used as adapters on sensor chip surfaces, they allow an efficient immobilization of analyte-specific recognition and detector elements such as antibodies and enzymes at highest surface densities. The display on plant viral bionanoparticles may also lead to long-time stabilization of sensor molecules upon repeated uses and has the potential to increase sensor performance substantially, compared to conventional layouts. This has been demonstrated in different proof-of-concept biosensor devices. Therefore, richly available plant viral particles, non-pathogenic for animals or humans, might gain novel importance if applied in receptor layers of FEDs. These perspectives are explained and discussed with regard to future detection strategies for COVID-19 and related viral diseases.
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Affiliation(s)
| | - Melanie Jablonski
- Institute of Nano- and Biotechnologies, FH Aachen University of Applied Sciences, Jülich, Germany
- Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Marburg, Germany
| | - Denise Molinnus
- Institute of Nano- and Biotechnologies, FH Aachen University of Applied Sciences, Jülich, Germany
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
- *Correspondence: Christina Wege,
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, FH Aachen University of Applied Sciences, Jülich, Germany
- Institute of Complex Systems (ICS-8), Research Centre Jülich GmbH, Jülich, Germany
- Michael J. Schöning,
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21
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Pilas J, Selmer T, Keusgen M, Schöning MJ. Screen-Printed Carbon Electrodes Modified with Graphene Oxide for the Design of a Reagent-Free NAD +-Dependent Biosensor Array. Anal Chem 2019; 91:15293-15299. [PMID: 31674761 DOI: 10.1021/acs.analchem.9b04481] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A facile approach for the construction of reagent-free electrochemical dehydrogenase-based biosensors is presented. Enzymes and cofactors (NAD+ and Fe(CN)63-) were immobilized by modification of screen-printed carbon electrodes with graphene oxide (GO) and an additional layer of cellulose acetate. The sensor system was exemplarily optimized for an l-lactate electrode in terms of GO concentration, working potential, and pH value. The biosensor exhibited best characteristics at pH 7.5 in 100 mM potassium phosphate buffer at an applied potential of +0.250 V versus an internal pseudo Ag reference electrode. Thereby, sensor performance was characterized by a linear working range from 0.25 to 4 mM and a sensitivity of 0.14 μA mM-1. The detection principle was additionally evaluated with three other dehydrogenases (d-lactate dehydrogenase, alcohol dehydrogenase, and formate dehydrogenase, respectively). The developed reagentless biosensor array enabled simultaneous and cross-talk free determination of l-lactate, d-lactate, ethanol, and formate.
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Affiliation(s)
- Johanna Pilas
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Jülich , Germany.,Institute of Pharmaceutical Chemistry , Philipps-Universität Marburg , Marburg , Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Jülich , Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry , Philipps-Universität Marburg , Marburg , Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Jülich , Germany.,Institute of Complex Systems 8 (ICS-8) , Forschungszentrum Jülich , Jülich , Germany
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Dantism S, Röhlen D, Wagner T, Wagner P, Schöning MJ. A LAPS-Based Differential Sensor for Parallelized Metabolism Monitoring of Various Bacteria. Sensors (Basel) 2019; 19:s19214692. [PMID: 31671716 PMCID: PMC6864667 DOI: 10.3390/s19214692] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 10/23/2019] [Accepted: 10/24/2019] [Indexed: 11/21/2022]
Abstract
Monitoring the cellular metabolism of bacteria in (bio)fermentation processes is crucial to control and steer them, and to prevent undesired disturbances linked to metabolically inactive microorganisms. In this context, cell-based biosensors can play an important role to improve the quality and increase the yield of such processes. This work describes the simultaneous analysis of the metabolic behavior of three different types of bacteria by means of a differential light-addressable potentiometric sensor (LAPS) set-up. The study includes Lactobacillus brevis, Corynebacterium glutamicum, and Escherichia coli, which are often applied in fermentation processes in bioreactors. Differential measurements were carried out to compensate undesirable influences such as sensor signal drift, and pH value variation during the measurements. Furthermore, calibration curves of the cellular metabolism were established as a function of the glucose concentration or cell number variation with all three model microorganisms. In this context, simultaneous (bio)sensing with the multi-organism LAPS-based set-up can open new possibilities for a cost-effective, rapid detection of the extracellular acidification of bacteria on a single sensor chip. It can be applied to evaluate the metabolic response of bacteria populations in a (bio)fermentation process, for instance, in the biogas fermentation process.
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Affiliation(s)
- Shahriar Dantism
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
- Department of Physics and Astronomy, Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium.
| | - Désirée Röhlen
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
- Institute of Complex Systems (ICS-8), Research Centre Jülich GmbH, Wilhelm-Johnen-Straße 1, 52425 Jülich, Germany.
| | - Patrick Wagner
- Department of Physics and Astronomy, Laboratory for Soft Matter and Biophysics, KU Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium.
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
- Institute of Complex Systems (ICS-8), Research Centre Jülich GmbH, Wilhelm-Johnen-Straße 1, 52425 Jülich, Germany.
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23
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Arreola J, Keusgen M, Wagner T, Schöning MJ. Combined calorimetric gas- and spore-based biosensor array for online monitoring and sterility assurance of gaseous hydrogen peroxide in aseptic filling machines. Biosens Bioelectron 2019; 143:111628. [PMID: 31476599 DOI: 10.1016/j.bios.2019.111628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/09/2019] [Accepted: 08/21/2019] [Indexed: 10/26/2022]
Abstract
A combined calorimetric gas- and spore-based biosensor array is presented in this work to monitor and evaluate the sterilization efficacy of gaseous hydrogen peroxide in aseptic filling machines. H2O2 has been successfully measured under industrial conditions. Furthermore, the effect of H2O2 on three different spore strains , namely Bacillus atrophaeus, Bacillus subtilis and Geobacillus stearothermophilus, has been investigated by means of SEM, AFM and impedimetric measurements. In addition, the sterilization efficacy of a spore-based biosensor and the functioning principle are addressed and discussed: the sensor array is convenient to be used in aseptic food industry to guarantee sterile packages.
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Affiliation(s)
- Julio Arreola
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6-10, 35032 Marburg, Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6-10, 35032 Marburg, Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Complex Systems 8 (ICS-8), Research Centre Jülich GmbH, 52425, Jülich, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Complex Systems 8 (ICS-8), Research Centre Jülich GmbH, 52425, Jülich, Germany.
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24
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Cornelis P, Givanoudi S, Yongabi D, Iken H, Duwé S, Deschaume O, Robbens J, Dedecker P, Bartic C, Wübbenhorst M, Schöning MJ, Heyndrickx M, Wagner P. Sensitive and specific detection of E. coli using biomimetic receptors in combination with a modified heat-transfer method. Biosens Bioelectron 2019; 136:97-105. [DOI: 10.1016/j.bios.2019.04.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/03/2019] [Accepted: 04/14/2019] [Indexed: 12/31/2022]
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25
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Dantism S, Röhlen D, Selmer T, Wagner T, Wagner P, Schöning MJ. Quantitative differential monitoring of the metabolic activity of Corynebacterium glutamicum cultures utilizing a light-addressable potentiometric sensor system. Biosens Bioelectron 2019; 139:111332. [PMID: 31132723 DOI: 10.1016/j.bios.2019.111332] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 04/29/2019] [Accepted: 05/15/2019] [Indexed: 10/26/2022]
Abstract
Applying biosensors for evaluation of the extracellular acidification of microorganisms in various biotechnological fermentation processes is on demand. An early stage detection of disturbances in the production line would avoid costly interventions related to metabolically inactive microorganisms. Furthermore, the determination of the number of living cells through cell plating procedure after cultivations is known as time- and material-consuming. In this work, a differential light-addressable potentiometric sensor (LAPS) system was developed to monitor the metabolic activity of Corynebacterium glutamicum (C. glutamicum ATCC13032) as typical microorganism in fermentation processes. In this context, the number of living cells in suspensions was directly determined utilizing the read-out principle of the LAPS system. The planar sensor surface of the LAPS design allows to fixate 3D-printed multi-chamber structures, which enables differential measurements. In this way, undesirable external influences such as pH variations of the medium and sensor signal drift can be compensated.
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Affiliation(s)
- Shahriar Dantism
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Department of Physics and Astronomy, Soft-Matter Physics and Biophysics Section, KU Leuven, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Désirée Röhlen
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Complex Systems (ICS-8), Research Centre Jülich GmbH, 52425, Jülich, Germany
| | - Patrick Wagner
- Department of Physics and Astronomy, Soft-Matter Physics and Biophysics Section, KU Leuven, Celestijnenlaan 200 D, 3001, Leuven, Belgium
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), Aachen University of Applied Sciences, Campus Jülich, 52428, Jülich, Germany; Institute of Complex Systems (ICS-8), Research Centre Jülich GmbH, 52425, Jülich, Germany.
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26
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Poghossian A, Geissler H, Schöning MJ. Rapid methods and sensors for milk quality monitoring and spoilage detection. Biosens Bioelectron 2019; 140:111272. [PMID: 31170654 DOI: 10.1016/j.bios.2019.04.040] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 04/19/2019] [Accepted: 04/19/2019] [Indexed: 11/24/2022]
Abstract
Monitoring of food quality, in particular, milk quality, is critical in order to maintain food safety and human health. To guarantee quality and safety of milk products and at the same time deliver those as soon as possible, rapid analysis methods as well as sensitive, reliable, cost-effective, easy-to-use devices and systems for process control and milk spoilage detection are needed. In this paper, we review different rapid methods, sensors and commercial systems for milk spoilage and microorganism detection. The main focus lies on chemical sensors and biosensors for detection/monitoring of the well-known indicators associated with bacterial growth and milk spoilage such as changes in pH value, conductivity/impedance, adenosine triphosphate level, concentration of dissolved oxygen and produced CO2. These sensors offer several advantages, like high sensitivity, fast response time, minimal sample preparation, miniaturization and ability for real-time monitoring of milk spoilage. In addition, electronic-nose- and electronic-tongue systems for the detection of characteristic volatile and non-volatile compounds related to microbial growth and milk spoilage are described. Finally, wireless sensors and color indicators for intelligent packaging are discussed.
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Affiliation(s)
- Arshak Poghossian
- Institute of Nano- and Biotechnologies, FH Aachen, Campus Jülich, 52428, Jülich, Germany.
| | | | - Michael J Schöning
- Institute of Nano- and Biotechnologies, FH Aachen, Campus Jülich, 52428, Jülich, Germany.
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27
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28
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Röhlen DL, Pilas J, Dahmen M, Keusgen M, Selmer T, Schöning MJ. Toward a Hybrid Biosensor System for Analysis of Organic and Volatile Fatty Acids in Fermentation Processes. Front Chem 2018; 6:284. [PMID: 30065922 PMCID: PMC6056648 DOI: 10.3389/fchem.2018.00284] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 06/22/2018] [Indexed: 11/13/2022] Open
Abstract
Monitoring of organic acids (OA) and volatile fatty acids (VFA) is crucial for the control of anaerobic digestion. In case of unstable process conditions, an accumulation of these intermediates occurs. In the present work, two different enzyme-based biosensor arrays are combined and presented for facile electrochemical determination of several process-relevant analytes. Each biosensor utilizes a platinum sensor chip (14 × 14 mm2) with five individual working electrodes. The OA biosensor enables simultaneous measurement of ethanol, formate, d- and l-lactate, based on a bi-enzymatic detection principle. The second VFA biosensor provides an amperometric platform for quantification of acetate and propionate, mediated by oxidation of hydrogen peroxide. The cross-sensitivity of both biosensors toward potential interferents, typically present in fermentation samples, was investigated. The potential for practical application in complex media was successfully demonstrated in spiked sludge samples collected from three different biogas plants. Thereby, the results obtained by both of the biosensors were in good agreement to the applied reference measurements by photometry and gas chromatography, respectively. The proposed hybrid biosensor system was also used for long-term monitoring of a lab-scale biogas reactor (0.01 m3) for a period of 2 months. In combination with typically monitored parameters, such as gas quality, pH and FOS/TAC (volatile organic acids/total anorganic carbonate), the amperometric measurements of OA and VFA concentration could enhance the understanding of ongoing fermentation processes.
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Affiliation(s)
| | - Johanna Pilas
- Institute of Nano- and Biotechnologies, FH Aachen, Jülich, Germany
- Institute of Pharmaceutical Chemistry, Philipps-Universität Marburg, Marburg, Germany
| | | | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps-Universität Marburg, Marburg, Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies, FH Aachen, Jülich, Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, FH Aachen, Jülich, Germany
- Institute of Complex Systems 8, Forschungszentrum Jülich, Jülich, Germany
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29
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Poghossian A, Jablonski M, Koch C, Bronder TS, Rolka D, Wege C, Schöning MJ. Field-effect biosensor using virus particles as scaffolds for enzyme immobilization. Biosens Bioelectron 2018; 110:168-174. [DOI: 10.1016/j.bios.2018.03.036] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/01/2018] [Accepted: 03/16/2018] [Indexed: 11/27/2022]
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30
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Bronder TS, Jessing MP, Poghossian A, Keusgen M, Schöning MJ. Detection of PCR-Amplified Tuberculosis DNA Fragments with Polyelectrolyte-Modified Field-Effect Sensors. Anal Chem 2018; 90:7747-7753. [PMID: 29770694 DOI: 10.1021/acs.analchem.8b01807] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Field-effect-based electrolyte-insulator-semiconductor (EIS) sensors were modified with a bilayer of positively charged weak polyelectrolyte (poly(allylamine hydrochloride) (PAH)) and probe single-stranded DNA (ssDNA) and are used for the detection of complementary single-stranded target DNA (cDNA) in different test solutions. The sensing mechanism is based on the detection of the intrinsic molecular charge of target cDNA molecules after the hybridization event between cDNA and immobilized probe ssDNA. The test solutions contain synthetic cDNA oligonucleotides (with a sequence of tuberculosis mycobacteria genome) or PCR-amplified DNA (which origins from a template DNA strand that has been extracted from Mycobacterium avium paratuberculosis-spiked human sputum samples), respectively. Sensor responses up to 41 mV have been measured for the test solutions with DNA, while only small signals of ∼5 mV were detected for solutions without DNA. The lower detection limit of the EIS sensors was ∼0.3 nM, and the sensitivity was ∼7.2 mV/decade. Fluorescence experiments using SybrGreen I fluorescence dye support the electrochemical results.
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Affiliation(s)
- Thomas S Bronder
- Institute of Nano- and Biotechnologies , FH Aachen , Campus Jülich , 52428 Jülich , Germany.,Institute of Complex Systems Bioelectronics (ICS-8) , Forschungszentrum Jülich GmbH , 52425 Jülich , Germany
| | - Max P Jessing
- Institute of Nano- and Biotechnologies , FH Aachen , Campus Jülich , 52428 Jülich , Germany
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies , FH Aachen , Campus Jülich , 52428 Jülich , Germany.,Institute of Complex Systems Bioelectronics (ICS-8) , Forschungszentrum Jülich GmbH , 52425 Jülich , Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry , Philipps University Marburg , 35037 Marburg , Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies , FH Aachen , Campus Jülich , 52428 Jülich , Germany.,Institute of Complex Systems Bioelectronics (ICS-8) , Forschungszentrum Jülich GmbH , 52425 Jülich , Germany
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31
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Molinnus D, Muschallik L, Gonzalez LO, Bongaerts J, Wagner T, Selmer T, Siegert P, Keusgen M, Schöning MJ. Development and characterization of a field-effect biosensor for the detection of acetoin. Biosens Bioelectron 2018; 115:1-6. [PMID: 29783080 DOI: 10.1016/j.bios.2018.05.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/27/2018] [Accepted: 05/10/2018] [Indexed: 11/19/2022]
Abstract
A capacitive electrolyte-insulator-semiconductor (EIS) field-effect biosensor for acetoin detection has been presented for the first time. The EIS sensor consists of a layer structure of Al/p-Si/SiO2/Ta2O5/enzyme acetoin reductase. The enzyme, also referred to as butane-2,3-diol dehydrogenase from B. clausii DSM 8716T, has been recently characterized. The enzyme catalyzes the (R)-specific reduction of racemic acetoin to (R,R)- and meso-butane-2,3-diol, respectively. Two different enzyme immobilization strategies (cross-linking by using glutaraldehyde and adsorption) have been studied. Typical biosensor parameters such as optimal pH working range, sensitivity, hysteresis, linear concentration range and long-term stability have been examined by means of constant-capacitance (ConCap) mode measurements. Furthermore, preliminary experiments have been successfully carried out for the detection of acetoin in diluted white wine samples.
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Affiliation(s)
- Denise Molinnus
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany; Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Wilhelm-Roser-Str. 2, 35032 Marburg, Germany
| | - Lukas Muschallik
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
| | - Laura Osorio Gonzalez
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
| | - Johannes Bongaerts
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
| | - Petra Siegert
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Wilhelm-Roser-Str. 2, 35032 Marburg, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Campus Jülich, Heinrich-Mußmannstr. 1, 52428 Jülich, Germany; Institute of Complex Systems 8 (ICS-8), Research Center Jülich, Wilhelm-Johnen-Str. 6, 52425 Jülich, Germany.
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32
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Pilas J, Yazici Y, Selmer T, Keusgen M, Schöning MJ. Application of a Portable Multi-Analyte Biosensor for Organic Acid Determination in Silage. Sensors (Basel) 2018; 18:E1470. [PMID: 29738487 PMCID: PMC5982779 DOI: 10.3390/s18051470] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 04/25/2018] [Accepted: 05/03/2018] [Indexed: 12/03/2022]
Abstract
Multi-analyte biosensors may offer the opportunity to perform cost-effective and rapid analysis with reduced sample volume, as compared to electrochemical biosensing of each analyte individually. This work describes the development of an enzyme-based biosensor system for multi-parametric determination of four different organic acids. The biosensor array comprises five working electrodes for simultaneous sensing of ethanol, formate, d-lactate, and l-lactate, and an integrated counter electrode. Storage stability of the biosensor was evaluated under different conditions (stored at +4 °C in buffer solution and dry at −21 °C, +4 °C, and room temperature) over a period of 140 days. After repeated and regular application, the individual sensing electrodes exhibited the best stability when stored at −21 °C. Furthermore, measurements in silage samples (maize and sugarcane silage) were conducted with the portable biosensor system. Comparison with a conventional photometric technique demonstrated successful employment for rapid monitoring of complex media.
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Affiliation(s)
- Johanna Pilas
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
- Institute of Pharmaceutical Chemistry, Philipps-Universität Marburg, 35037 Marburg, Germany.
| | - Yasemen Yazici
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry, Philipps-Universität Marburg, 35037 Marburg, Germany.
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB), FH Aachen, Heinrich-Mußmann-Straße 1, 52428 Jülich, Germany.
- Institute of Complex Systems 8 (ICS-8); Forschungszentrum Jülich GmbH, Wilhelm-Johnen-Straße 1, 52425 Jülich, Germany.
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33
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Oberländer J, Mayer M, Greeff A, Keusgen M, Schöning MJ. Spore-based biosensor to monitor the microbicidal efficacy of gaseous hydrogen peroxide sterilization processes. Biosens Bioelectron 2018; 104:87-94. [DOI: 10.1016/j.bios.2017.12.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 12/15/2017] [Accepted: 12/26/2017] [Indexed: 10/18/2022]
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34
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Rodrigues RT, Morais PV, Nordi CSF, Schöning MJ, Siqueira JR, Caseli L. Carbon Nanotubes and Algal Polysaccharides To Enhance the Enzymatic Properties of Urease in Lipid Langmuir-Blodgett Films. Langmuir 2018; 34:3082-3093. [PMID: 29397738 DOI: 10.1021/acs.langmuir.7b04317] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Algal polysaccharides (extracellular polysaccharides) and carbon nanotubes (CNTs) were adsorbed on dioctadecyldimethylammonium bromide Langmuir monolayers to serve as a matrix for the incorporation of urease. The physicochemical properties of the supramolecular system as a monolayer at the air-water interface were investigated by surface pressure-area isotherms, surface potential-area isotherms, interfacial shear rheology, vibrational spectroscopy, and Brewster angle microscopy. The floating monolayers were transferred to hydrophilic solid supports, quartz, mica, or capacitive electrolyte-insulator-semiconductor (EIS) devices, through the Langmuir-Blodgett (LB) technique, forming mixed films, which were investigated by quartz crystal microbalance, fluorescence spectroscopy, and field emission gun scanning electron microscopy. The enzyme activity was studied with UV-vis spectroscopy, and the feasibility of the thin film as a urea sensor was essayed in an EIS sensor device. The presence of CNT in the enzyme-lipid LB film not only tuned the catalytic activity of urease but also helped to conserve its enzyme activity. Viability as a urease sensor was demonstrated with capacitance-voltage and constant capacitance measurements, exhibiting regular and distinctive output signals over all concentrations used in this work. These results are related to the synergism between the compounds on the active layer, leading to a surface morphology that allowed fast analyte diffusion owing to an adequate molecular accommodation, which also preserved the urease activity. This work demonstrates the feasibility of employing LB films composed of lipids, CNT, algal polysaccharides, and enzymes as EIS devices for biosensing applications.
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Affiliation(s)
- Raul T Rodrigues
- Institute of Environmental, Chemical and Pharmaceutical Sciences , Federal University of São Paulo (UNIFESP) , 09913-030 Diadema , São Paulo , Brazil
| | - Paulo V Morais
- Institute of Exact Sciences, Natural and Education , Federal University of Triângulo Mineiro (UFTM) , 38064-200 Uberaba , Minas Gerais , Brazil
- Interdisciplinary Laboratory of Electrochemistry and Ceramics, Chemistry Institute , São Paulo State University , 14800-900 Araraquara , São Paulo , Brazil
| | - Cristina S F Nordi
- Institute of Environmental, Chemical and Pharmaceutical Sciences , Federal University of São Paulo (UNIFESP) , 09913-030 Diadema , São Paulo , Brazil
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Campus Jülich , 52428 Jülich , Germany
- Institute of Complex Systems (ICS-8) , Forschungszentrum Jülich , 52425 Jülich , Germany
| | - José R Siqueira
- Institute of Exact Sciences, Natural and Education , Federal University of Triângulo Mineiro (UFTM) , 38064-200 Uberaba , Minas Gerais , Brazil
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences , Federal University of São Paulo (UNIFESP) , 09913-030 Diadema , São Paulo , Brazil
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35
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Koch C, Poghossian A, Schöning MJ, Wege C. Penicillin Detection by Tobacco Mosaic Virus-Assisted Colorimetric Biosensors. Nanotheranostics 2018; 2:184-196. [PMID: 29577021 PMCID: PMC5865271 DOI: 10.7150/ntno.22114] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 12/23/2017] [Indexed: 02/06/2023] Open
Abstract
The presentation of enzymes on viral scaffolds has beneficial effects such as an increased enzyme loading and a prolonged reusability in comparison to conventional immobilization platforms. Here, we used modified tobacco mosaic virus (TMV) nanorods as enzyme carriers in penicillin G detection for the first time. Penicillinase enzymes were conjugated with streptavidin and coupled to TMV rods by use of a bifunctional biotin-linker. Penicillinase-decorated TMV particles were characterized extensively in halochromic dye-based biosensing. Acidometric analyte detection was performed with bromcresol purple as pH indicator and spectrophotometry. The TMV-assisted sensors exhibited increased enzyme loading and strongly improved reusability, and higher analysis rates compared to layouts without viral adapters. They extended the half-life of the sensors from 4 - 6 days to 5 weeks and thus allowed an at least 8-fold longer use of the sensors. Using a commercial budget-priced penicillinase preparation, a detection limit of 100 µM penicillin was obtained. Initial experiments also indicate that the system may be transferred to label-free detection layouts.
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Affiliation(s)
- Claudia Koch
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70569 Stuttgart, Germany
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, FH Aachen, Campus Jülich, 52428 Jülich, Germany
- Institute of Complex Systems (ICS-8), Forschungszentrum Jülich GmbH, 52525 Jülich, Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, FH Aachen, Campus Jülich, 52428 Jülich, Germany
- Institute of Complex Systems (ICS-8), Forschungszentrum Jülich GmbH, 52525 Jülich, Germany
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, 70569 Stuttgart, Germany
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Molinnus D, Hardt G, Siegert P, Willenberg HS, Poghossian A, Keusgen M, Schöning MJ. Detection of Adrenaline in Blood Plasma as Biomarker for Adrenal Venous Sampling. ELECTROANAL 2018. [DOI: 10.1002/elan.201800026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Denise Molinnus
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich, Heinrich-Mußmannstr. 1 52428 Jülich Germany
- Institute of Pharmaceutical Chemistry; Philipps-University Marburg; Wilhelm-Roser-Str. 2 35032 Marburg Germany
| | - Gabriel Hardt
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich, Heinrich-Mußmannstr. 1 52428 Jülich Germany
| | - Petra Siegert
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich, Heinrich-Mußmannstr. 1 52428 Jülich Germany
| | - Holger S. Willenberg
- Devision of Endocrinology and Metabolism; Rostock University Medical Center; Ernst-Heydemann-Str. 6 18057 Rostock Germany
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich, Heinrich-Mußmannstr. 1 52428 Jülich Germany
- Institute of Complex Systems 8 (ICS-8); Research Center Jülich; Wilhelm-Johnen-Str. 6 52425 Jülich Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry; Philipps-University Marburg; Wilhelm-Roser-Str. 2 35032 Marburg Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich, Heinrich-Mußmannstr. 1 52428 Jülich Germany
- Institute of Complex Systems 8 (ICS-8); Research Center Jülich; Wilhelm-Johnen-Str. 6 52425 Jülich Germany
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Abstract
Nanotubular tobacco mosaic virus (TMV) particles and RNA-free lower-order coat protein (CP) aggregates have been employed as enzyme carriers in different diagnostic layouts and compared for their influence on biosensor performance. In the following, we describe a label-free electrochemical biosensor for improved glucose detection by use of TMV adapters and the enzyme glucose oxidase (GOD). A specific and efficient immobilization of streptavidin-conjugated GOD ([SA]-GOD) complexes on biotinylated TMV nanotubes or CP aggregates was achieved via bioaffinity binding. Glucose sensors with adsorptively immobilized [SA]-GOD, and with [SA]-GOD cross-linked with glutardialdehyde, respectively, were tested in parallel on the same sensor chip. Comparison of these sensors revealed that TMV adapters enhanced the amperometric glucose detection remarkably, conveying highest sensitivity, an extended linear detection range and fastest response times. These results underline a great potential of an integration of virus/biomolecule hybrids with electronic transducers for applications in biosensorics and biochips. Here, we describe the fabrication and use of amperometric sensor chips combining an array of circular Pt electrodes, their loading with GOD-modified TMV nanotubes (and other GOD immobilization methods), and the subsequent investigations of the sensor performance.
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Affiliation(s)
- Claudia Koch
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Jülich, Germany
| | - Christina Wege
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Jülich, Germany.
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Koushanpour A, Gamella M, Guo Z, Honarvarfard E, Poghossian A, Schöning MJ, Alexandrov K, Katz E. Ca2+-Switchable Glucose Dehydrogenase Associated with Electrochemical/Electronic Interfaces: Applications to Signal-Controlled Power Production and Biomolecular Release. J Phys Chem B 2017; 121:11465-11471. [DOI: 10.1021/acs.jpcb.7b11151] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ashkan Koushanpour
- Department
of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
| | - Maria Gamella
- Department
of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
| | - Zhong Guo
- Institute
for Molecular Bioscience, The University of Queensland, Brisbane QLD 4072, Australia
| | - Elham Honarvarfard
- Department
of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
| | - Arshak Poghossian
- Institute
of Nano- and Biotechnologies, FH Aachen, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Mußmann-Str.
1, D-52428 Jülich, Germany
- Institute
of Complex Systems (ICS-8), Research Centre Jülich GmbH, D-52425 Jülich, Germany
| | - Michael J. Schöning
- Institute
of Nano- and Biotechnologies, FH Aachen, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Mußmann-Str.
1, D-52428 Jülich, Germany
- Institute
of Complex Systems (ICS-8), Research Centre Jülich GmbH, D-52425 Jülich, Germany
| | - Kirill Alexandrov
- Institute
for Molecular Bioscience, The University of Queensland, Brisbane QLD 4072, Australia
| | - Evgeny Katz
- Department
of Chemistry and Biomolecular Science, Clarkson University, Potsdam, New York 13699-5810, United States
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Scholl FA, Morais PV, Gabriel RC, Schöning MJ, Siqueira JR, Caseli L. Carbon Nanotubes Arranged As Smart Interfaces in Lipid Langmuir-Blodgett Films Enhancing the Enzymatic Properties of Penicillinase for Biosensing Applications. ACS Appl Mater Interfaces 2017; 9:31054-31066. [PMID: 28816431 DOI: 10.1021/acsami.7b08095] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this paper, carbon nanotubes (CNTs) were incorporated in penicillinase-phospholipid Langmuir and Langmuir-Blodgett (LB) films to enhance the enzyme catalytic properties. Adsorption of the penicillinase and CNTs at dimyristoylphosphatidic acid (DMPA) monolayers at the air-water interface was investigated by surface pressure-area isotherms, vibrational spectroscopy, and Brewster angle microscopy. The floating monolayers were transferred to solid supports through the LB technique, forming mixed DMPA-CNTs-PEN films, which were investigated by quartz crystal microbalance, vibrational spectroscopy, and atomic force microscopy. Enzyme activity was studied with UV-vis spectroscopy and the feasibility of the supramolecular device nanostructured as ultrathin films were essayed in a capacitive electrolyte-insulator-semiconductor (EIS) sensor device. The presence of CNTs in the enzyme-lipid LB film not only tuned the catalytic activity of penicillinase but also helped conserve its enzyme activity after weeks, showing increased values of activity. Viability as penicillin sensor was demonstrated with capacitance/voltage and constant capacitance measurements, exhibiting regular and distinctive output signals over all concentrations used in this work. These results may be related not only to the nanostructured system provided by the film, but also to the synergism between the compounds on the active layer, leading to a surface morphology that allowed a fast analyte diffusion because of an adequate molecular accommodation, which also preserved the penicillinase activity. This work therefore demonstrates the feasibility of employing LB films composed of lipids, CNTs, and enzymes as EIS devices for biosensing applications.
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Affiliation(s)
- Fabio A Scholl
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP) , 09913-030 Diadema, São Paulo, Brazil
| | - Paulo V Morais
- Institute of Exact Sciences, Natural and Education, Federal University of Triângulo Mineiro (UFTM) , 38064-200 Uberaba, Minas Gerais, Brazil
| | - Rayla C Gabriel
- Institute of Exact Sciences, Natural and Education, Federal University of Triângulo Mineiro (UFTM) , 38064-200 Uberaba, Minas Gerais, Brazil
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies (INB) , FH Aachen, Campus Jülich, 52428 Jülich, Germany
- Peter Grünberg Institute (PGI-8) , Forschungszentrum Jülich, 52425 Jülich, Germany
| | - José R Siqueira
- Institute of Exact Sciences, Natural and Education, Federal University of Triângulo Mineiro (UFTM) , 38064-200 Uberaba, Minas Gerais, Brazil
| | - Luciano Caseli
- Institute of Environmental, Chemical and Pharmaceutical Sciences, Federal University of São Paulo (UNIFESP) , 09913-030 Diadema, São Paulo, Brazil
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Röhlen DL, Pilas J, Schöning MJ, Selmer T. Development of an Amperometric Biosensor Platform for the Combined Determination of l-Malic, Fumaric, and l-Aspartic Acid. Appl Biochem Biotechnol 2017; 183:566-581. [DOI: 10.1007/s12010-017-2578-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/02/2017] [Indexed: 02/08/2023]
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Muschallik L, Molinnus D, Bongaerts J, Pohl M, Wagner T, Schöning MJ, Siegert P, Selmer T. (R,R)-Butane-2,3-diol dehydrogenase from Bacillus clausii DSM 8716 T: Cloning and expression of the bdhA-gene, and initial characterization of enzyme. J Biotechnol 2017; 258:41-50. [PMID: 28793235 DOI: 10.1016/j.jbiotec.2017.07.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 06/09/2017] [Accepted: 07/21/2017] [Indexed: 12/01/2022]
Abstract
The gene encoding a putative (R,R)-butane-2,3-diol dehydrogenase (bdhA) from Bacillus clausii DSM 8716T was isolated, sequenced and expressed in Escherichia coli. The amino acid sequence of the encoded protein is only distantly related to previously studied enzymes (identity 33-43%) and exhibited some uncharted peculiarities. An N-terminally StrepII-tagged enzyme variant was purified and initially characterized. The isolated enzyme catalyzed the (R)-specific oxidation of (R,R)- and meso-butane-2,3-diol to (R)- and (S)-acetoin with specific activities of 12U/mg and 23U/mg, respectively. Likewise, racemic acetoin was reduced with a specific activity of up to 115U/mg yielding a mixture of (R,R)- and meso-butane-2,3-diol, while the enzyme reduced butane-2,3-dione (Vmax 74U/mg) solely to (R,R)-butane-2,3-diol via (R)-acetoin. For these reactions only activity with the co-substrates NADH/NAD+ was observed. The enzyme accepted a selection of vicinal diketones, α-hydroxy ketones and vicinal diols as alternative substrates. Although the physiological function of the enzyme in B. clausii remains elusive, the data presented herein clearly demonstrates that the encoded enzyme is a genuine (R,R)-butane-2,3-diol dehydrogenase with potential for applications in biocatalysis and sensor development.
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Affiliation(s)
- Lukas Muschallik
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Denise Molinnus
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Johannes Bongaerts
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Martina Pohl
- IBG-1: Biotechnology, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Petra Siegert
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany
| | - Thorsten Selmer
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, 52428 Jülich, Germany.
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42
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Dantism S, Takenaga S, Wagner T, Wagner P, Schöning MJ. Differential imaging of the metabolism of bacteria and eukaryotic cells based on light-addressable potentiometric sensors. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2017.05.196] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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43
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Yoshinobu T, Miyamoto KI, Werner CF, Poghossian A, Wagner T, Schöning MJ. Light-Addressable Potentiometric Sensors for Quantitative Spatial Imaging of Chemical Species. Annu Rev Anal Chem (Palo Alto Calif) 2017; 10:225-246. [PMID: 28375701 DOI: 10.1146/annurev-anchem-061516-045158] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A light-addressable potentiometric sensor (LAPS) is a semiconductor-based chemical sensor, in which a measurement site on the sensing surface is defined by illumination. This light addressability can be applied to visualize the spatial distribution of pH or the concentration of a specific chemical species, with potential applications in the fields of chemistry, materials science, biology, and medicine. In this review, the features of this chemical imaging sensor technology are compared with those of other technologies. Instrumentation, principles of operation, and various measurement modes of chemical imaging sensor systems are described. The review discusses and summarizes state-of-the-art technologies, especially with regard to the spatial resolution and measurement speed; for example, a high spatial resolution in a submicron range and a readout speed in the range of several tens of thousands of pixels per second have been achieved with the LAPS. The possibility of combining this technology with microfluidic devices and other potential future developments are discussed.
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Affiliation(s)
- Tatsuo Yoshinobu
- Department of Biomedical Engineering, Tohoku University, Sendai 980-8579, Japan;
- Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Ko-Ichiro Miyamoto
- Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
| | | | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Jülich Campus, Jülich 52428, Germany
- Peter Grünberg Institute, Research Centre Jülich GmbH, Jülich 52425, Germany
| | - Torsten Wagner
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Jülich Campus, Jülich 52428, Germany
- Peter Grünberg Institute, Research Centre Jülich GmbH, Jülich 52425, Germany
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Jülich Campus, Jülich 52428, Germany
- Peter Grünberg Institute, Research Centre Jülich GmbH, Jülich 52425, Germany
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44
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Molinnus D, Poghossian A, Keusgen M, Katz E, Schöning MJ. Coupling of Biomolecular Logic Gates with Electronic Transducers: From Single Enzyme Logic Gates to Sense/Act/Treat Chips. ELECTROANAL 2017. [DOI: 10.1002/elan.201700208] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Denise Molinnus
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich Heinrich-Mußmannstr. 1 52428 Jülich Germany
- Institute of Pharmaceutical Chemistry; Philipps-University Marburg; Wilhelm-Roser-Str. 2 35032 Marburg Germany
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich Heinrich-Mußmannstr. 1 52428 Jülich Germany
- Peter Grünberg Institute (PGI-8, Bioelectronics); Research Center Jülich; Wilhelm-Johnen-Str. 6 52425 Jülich Germany
| | - Michael Keusgen
- Institute of Pharmaceutical Chemistry; Philipps-University Marburg; Wilhelm-Roser-Str. 2 35032 Marburg Germany
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science; Clarkson University, NY; 13699-5810 Potsdam USA
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies (INB); FH Aachen; Campus Jülich Heinrich-Mußmannstr. 1 52428 Jülich Germany
- Peter Grünberg Institute (PGI-8, Bioelectronics); Research Center Jülich; Wilhelm-Johnen-Str. 6 52425 Jülich Germany
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45
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Scheja S, Domanskyi S, Gamella M, Wormwood KL, Darie CC, Poghossian A, Schöning MJ, Melman A, Privman V, Katz E. Glucose‐Triggered Insulin Release from Fe
3+
‐Cross‐linked Alginate Hydrogel: Experimental Study and Theoretical Modeling. Chemphyschem 2017; 18:1541-1551. [DOI: 10.1002/cphc.201700195] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Sabrina Scheja
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
- Institute of Nano- and Biotechnologies, FH Aachen Aachen University of Applied Sciences, Campus Jülich Heinrich-Mußmann-Str. 1 52428 Jülich Germany
| | - Sergii Domanskyi
- Department of Physics Clarkson University Potsdam NY 13699-5820 USA
| | - Maria Gamella
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
| | - Kelly L. Wormwood
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
| | - Costel C. Darie
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, FH Aachen Aachen University of Applied Sciences, Campus Jülich Heinrich-Mußmann-Str. 1 52428 Jülich Germany
- Peter Grünberg Institute (PGI-8), Research Centre Jülich GmbH 52425 Jülich Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, FH Aachen Aachen University of Applied Sciences, Campus Jülich Heinrich-Mußmann-Str. 1 52428 Jülich Germany
- Peter Grünberg Institute (PGI-8), Research Centre Jülich GmbH 52425 Jülich Germany
| | - Artem Melman
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
| | - Vladimir Privman
- Department of Physics Clarkson University Potsdam NY 13699-5820 USA
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699-5810 USA
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Honarvarfard E, Gamella M, Channaveerappa D, Darie CC, Poghossian A, Schöning MJ, Katz E. Electrochemically Stimulated Insulin Release from a Modified Graphene‐functionalized Carbon Fiber Electrode. ELECTROANAL 2017. [DOI: 10.1002/elan.201700095] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Elham Honarvarfard
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699–5810 USA
| | - Maria Gamella
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699–5810 USA
| | - Devika Channaveerappa
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699–5810 USA
| | - Costel C. Darie
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699–5810 USA
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, FH Aachen, Aachen University of Applied Sciences Campus Jülich Heinrich-Mußmann-Str. 1 D-52428 Jülich Germany
- Peter Grünberg Institute (PGI-8) Research Centre Jülich GmbH D-52425 Jülich Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, FH Aachen, Aachen University of Applied Sciences Campus Jülich Heinrich-Mußmann-Str. 1 D-52428 Jülich Germany
- Peter Grünberg Institute (PGI-8) Research Centre Jülich GmbH D-52425 Jülich Germany
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science Clarkson University Potsdam NY 13699–5810 USA
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Gamella M, Zakharchenko A, Guz N, Masi M, Minko S, Kolpashchikov DM, Iken H, Poghossian A, Schöning MJ, Katz E. DNA Computing Systems Activated by Electrochemically-triggered DNA Release from a Polymer-brush-modified Electrode Array. ELECTROANAL 2017; 29:398-408. [PMID: 29379265 PMCID: PMC5786385 DOI: 10.1002/elan.201600389] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 06/23/2016] [Indexed: 12/23/2022]
Abstract
An array of four independently wired indium tin oxide (ITO) electrodes was used for electrochemically stimulated DNA release and activation of DNA-based Identity, AND and XOR logic gates. Single-stranded DNA molecules were loaded on the mixed poly(N,N-di-methylaminoethyl methacrylate) (PDMAEMA)/poly-(methacrylic acid) (PMAA) brush covalently attached to the ITO electrodes. The DNA deposition was performed at pH 5.0 when the polymer brush is positively charged due to protonation of tertiary amino groups in PDMAE-MA, thus resulting in electrostatic attraction of the negatively charged DNA. By applying electrolysis at -1.0 V(vs. Ag/AgCl reference) electrochemical oxygen reduction resulted in the consumption of hydrogen ions and local pH increase near the electrode surface. The process resulted in recharging the polymer brush to the negative state due to dissociation of carboxylic groups of PMAA, thus repulsing the negatively charged DNA and releasing it from the electrode surface. The DNA release was performed in various combinations from different electrodes in the array assembly. The released DNA operated as input signals for activation of the Boolean logic gates. The developed system represents a step forward in DNA computing, combining for the first time DNA chemical processes with electronic input signals.
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Affiliation(s)
- Maria Gamella
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5810, USA, http://people.clarkson.edu/~ekatz/
| | - Andrey Zakharchenko
- Nanostructured Materials Lab, The University of Georgia, Athens, GA 30602, USA
| | - Nataliia Guz
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5810, USA, http://people.clarkson.edu/~ekatz/
| | - Madeline Masi
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5810, USA, http://people.clarkson.edu/~ekatz/
| | - Sergiy Minko
- Nanostructured Materials Lab, The University of Georgia, Athens, GA 30602, USA
| | - Dmitry M. Kolpashchikov
- Chemistry Department, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL 32816-2366, USA
| | - Heiko Iken
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Muβmann-Str. 1, D-52428 Jülich, Germany
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Muβmann-Str. 1, D-52428 Jülich, Germany
- Institute of Bio- and Nanosystems, Research Centre Jülich, GmbH, D-52425 Jülich Germany
| | - Michael J. Schöning
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Muβmann-Str. 1, D-52428 Jülich, Germany
- Institute of Bio- and Nanosystems, Research Centre Jülich, GmbH, D-52425 Jülich Germany
| | - Evgeny Katz
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY 13699-5810, USA, http://people.clarkson.edu/~ekatz/
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48
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Katz E, Poghossian A, Schöning MJ. Enzyme-based logic gates and circuits-analytical applications and interfacing with electronics. Anal Bioanal Chem 2016; 409:81-94. [PMID: 27900435 DOI: 10.1007/s00216-016-0079-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 10/27/2016] [Accepted: 11/03/2016] [Indexed: 12/24/2022]
Abstract
The paper is an overview of enzyme-based logic gates and their short circuits, with specific examples of Boolean AND and OR gates, and concatenated logic gates composed of multi-step enzyme-biocatalyzed reactions. Noise formation in the biocatalytic reactions and its decrease by adding a "filter" system, converting convex to sigmoid response function, are discussed. Despite the fact that the enzyme-based logic gates are primarily considered as components of future biomolecular computing systems, their biosensing applications are promising for immediate practical use. Analytical use of the enzyme logic systems in biomedical and forensic applications is discussed and exemplified with the logic analysis of biomarkers of various injuries, e.g., liver injury, and with analysis of biomarkers characteristic of different ethnicity found in blood samples on a crime scene. Interfacing of enzyme logic systems with modified electrodes and semiconductor devices is discussed, giving particular attention to the interfaces functionalized with signal-responsive materials. Future perspectives in the design of the biomolecular logic systems and their applications are discussed in the conclusion. Graphical Abstract Various applications and signal-transduction methods are reviewed for enzyme-based logic systems.
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Affiliation(s)
- Evgeny Katz
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, USA.
| | - Arshak Poghossian
- Institute of Nano- and Biotechnologies, FH Aachen, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Mußmann-Str. 1, 52428, Jülich, Germany. .,Peter Grünberg Institute (PGI-8), Research Centre Jülich GmbH, 52425, Jülich, Germany.
| | - Michael J Schöning
- Institute of Nano- and Biotechnologies, FH Aachen, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Mußmann-Str. 1, 52428, Jülich, Germany. .,Peter Grünberg Institute (PGI-8), Research Centre Jülich GmbH, 52425, Jülich, Germany.
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Hamad EM, Bilatto SER, Adly NY, Correa DS, Wolfrum B, Schöning MJ, Offenhäusser A, Yakushenko A. Inkjet printing of UV-curable adhesive and dielectric inks for microfluidic devices. Lab Chip 2016; 16:70-4. [PMID: 26627046 DOI: 10.1039/c5lc01195g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Bonding of polymer-based microfluidics to polymer substrates still poses a challenge for Lab-On-a-Chip applications. Especially, when sensing elements are incorporated, patterned deposition of adhesives with curing at ambient conditions is required. Here, we demonstrate a fabrication method for fully printed microfluidic systems with sensing elements using inkjet and stereolithographic 3D-printing.
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Affiliation(s)
- E M Hamad
- Biomedical Engineering Department, School of Applied Medical Sciences, German Jordanian University, Amman, Jordan
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Poghossian A, Katz E, Schöning MJ. Enzyme logic AND-Reset and OR-Reset gates based on a field-effect electronic transducer modified with multi-enzyme membrane. Chem Commun (Camb) 2015; 51:6564-7. [PMID: 25771862 DOI: 10.1039/c5cc01362c] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Capacitive field-effect sensors modified with a multi-enzyme membrane have been applied for an electronic transduction of biochemical signals processed by enzyme-based AND-Reset and OR-Reset logic gates. The local pH change at the sensor surface induced by the enzymatic reaction was used for the activation of the Reset function for the first time.
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Affiliation(s)
- A Poghossian
- Institute of Nano- and Biotechnologies, Aachen University of Applied Sciences, Campus Jülich, Heinrich-Mußmann-Str. 1, D-52428 Jülich, Germany.
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