51
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Ruan YF, Wang HY, Shi XM, Xu YT, Yu XD, Zhao WW, Chen HY, Xu JJ. Target-Triggered Assembly in a Nanopipette for Electrochemical Single-Cell Analysis. Anal Chem 2020; 93:1200-1208. [PMID: 33301293 DOI: 10.1021/acs.analchem.0c04628] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Engineered nanopipette tools have recently emerged as a powerful approach for electrochemical nanosensing, which has major implications in both fundamental biological research and biomedical applications. Herein, we describe a generic method of target-triggered assembly of aptamers in a nanopipette for nanosensing, which is exemplified by sensitive and rapid electrochemical single-cell analysis of adenosine triphosphate (ATP), a ubiquitous energy source in life and important signaling molecules in many physiological processes. Specifically, a layer of thiolated aptamers is immobilized onto a Au-coated interior wall of a nanopipette tip. With backfilled pairing aptamers, the engineered nanopipette is then used for probing intracellular ATP via the ATP-dependent linkage of the split aptamers. Due to the higher surface charge density from the aptamer assembly, the nanosensor would exhibit an enhanced rectification signal. Besides, this ATP-responsive nanopipette tool possesses excellent selectivity and stability as well as high recyclability. This work provides a practical single-cell nanosensor capable of intracellular ATP analysis. More generally, integrated with other split recognition elements, the proposed mechanism could serve as a viable basis for addressing many other important biological species.
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Affiliation(s)
- Yi-Fan Ruan
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hai-Yan Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiao-Mei Shi
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yi-Tong Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xiao-Dong Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei-Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China
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52
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Bury AG, Vincent AE, Turnbull DM, Actis P, Hudson G. Mitochondrial isolation: when size matters. Wellcome Open Res 2020; 5:226. [PMID: 33718619 PMCID: PMC7931255 DOI: 10.12688/wellcomeopenres.16300.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2020] [Indexed: 01/31/2024] Open
Abstract
Mitochondrial vitality is critical to cellular function, with mitochondrial dysfunction linked to a growing number of human diseases. Tissue and cellular heterogeneity, in terms of genetics, dynamics and function means that increasingly mitochondrial research is conducted at the single cell level. Whilst there are several technologies that are currently available for single-cell analysis, each with their advantages, they cannot be easily adapted to study mitochondria with subcellular resolution. Here we review the current techniques and strategies for mitochondrial isolation, critically discussing each technology's limitations for future mitochondrial research. Finally, we highlight and discuss the recent breakthroughs in sub-cellular isolation techniques, with a particular focus on nanotechnologies that enable the isolation of mitochondria from subcellular compartments. This allows isolation of mitochondria with unprecedented spatial precision with minimal disruption to mitochondria and their immediate cellular environment.
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Affiliation(s)
- Alexander G. Bury
- Wellcome Trust Centre for Mitochondrial Research, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
- Biosciences Institute, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
- Pollard Institute, School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Amy E. Vincent
- Wellcome Trust Centre for Mitochondrial Research, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
- Translational and Clinical Research Institute, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
| | - Doug M. Turnbull
- Wellcome Trust Centre for Mitochondrial Research, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
- Translational and Clinical Research Institute, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
| | - Paolo Actis
- Pollard Institute, School of Electronic and Electrical Engineering, University of Leeds, Leeds, LS2 9JT, UK
| | - Gavin Hudson
- Wellcome Trust Centre for Mitochondrial Research, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
- Biosciences Institute, Medical School, Newcastle University, Newcastle-upon-Tyne, NE1 7RU, UK
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53
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Madhurantakam S, Jayanth Babu K, Balaguru Rayappan JB, Maheswari Krishnan U. Fabrication of a Nano‐Interfaced Electrochemical Triglyceride Biosensor and its Potential Application towards Distinguishing Cancer and Normal Cells. ChemistrySelect 2020. [DOI: 10.1002/slct.202003771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sasya Madhurantakam
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA University Thanjavur 613 401 India
- School of Chemical & Biotechnology SASTRA University Thanjavur 613 401 India
- Department of Molecular Physiology School of Medicine Niigata University Niigata 9518103 Japan
| | - K Jayanth Babu
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA University Thanjavur 613 401 India
- School of Electrical & Electronics Engineering SASTRA University Thanjavur 613 401 India
| | - John Bosco Balaguru Rayappan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA University Thanjavur 613 401 India
- School of Electrical & Electronics Engineering SASTRA University Thanjavur 613 401 India
| | - Uma Maheswari Krishnan
- Centre for Nanotechnology & Advanced Biomaterials (CeNTAB) SASTRA University Thanjavur 613 401 India
- School of Chemical & Biotechnology SASTRA University Thanjavur 613 401 India
- School of Arts Science & Humanities (SASH) SASTRA University Thanjavur 613 401 India
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54
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McCormick HK, Dick JE. Nanoelectrochemical quantification of single-cell metabolism. Anal Bioanal Chem 2020; 413:17-24. [PMID: 32915282 DOI: 10.1007/s00216-020-02899-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/10/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022]
Abstract
At the most fundamental level, the behavior of tissue is governed by the activity of its single cells. A detailed examination of single-cell biology is necessary in order to gain a deeper understanding of disease progression. While single-cell genomics and transcriptomics are mature due to robust amplification strategies, the metabolome is difficult to quantify. Nanoelectrochemical techniques stand poised to quantify single-cell metabolism as a result of the fabrication of nanoelectrodes, which allow one to make intracellular electrochemical measurements. This article is concerned with intracellular nanoelectrochemistry, focusing on the sensitive and selective quantification of various metabolites within a single, living cell. We will review the strong literature behind this field, discuss the potential deleterious effects of passing charge inside cells, and provide future outlooks for this promising avenue of inquiry. We also present a mathematical relationship based on Faraday's Law and bulk electrolysis theory to examine the consumption of analyte within a cell due to passing charge at the nanotip.Graphical abstract.
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Affiliation(s)
- Hadley K McCormick
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jeffrey E Dick
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA. .,Lineberger Comprehensive Cancer Center, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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55
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Vaneev AN, Gorelkin PV, Garanina AS, Lopatukhina HV, Vodopyanov SS, Alova AV, Ryabaya OO, Akasov RA, Zhang Y, Novak P, Salikhov SV, Abakumov MA, Takahashi Y, Edwards CRW, Klyachko NL, Majouga AG, Korchev YE, Erofeev AS. In Vitro and In Vivo Electrochemical Measurement of Reactive Oxygen Species After Treatment with Anticancer Drugs. Anal Chem 2020; 92:8010-8014. [PMID: 32441506 DOI: 10.1021/acs.analchem.0c01256] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In vivo monitoring of reactive oxygen species (ROS) in tumors during treatment with anticancer therapy is important for understanding the mechanism of action and in the design of new anticancer drugs. In this work, a platinized nanoelectrode is placed into a single cell for detection of the ROS signal, and drug-induced ROS production is then recorded. The main advantages of this method are the short incubation time with the drug and its high sensitivity which allows the detection of low intracellular ROS concentrations. We have shown that our new method can measure the ROS response to chemotherapy in tumor-bearing mice in real-time. ROS levels were measured in vivo inside the tumor at different depths in response to doxorubicin. This work provides an effective new approach for the measurement of intracellular ROS by platinized nanoelectrodes.
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Affiliation(s)
- Alexander N Vaneev
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia
| | - Petr V Gorelkin
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia
| | - Anastasiia S Garanina
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia
| | - Helena V Lopatukhina
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia
| | - Stepan S Vodopyanov
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia
| | - Anna V Alova
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia
| | - Oxana O Ryabaya
- N. N. Blokhin National Medical Research Center of Oncology, 24 Kashirskoe shosse, Moscow 115478, Russia
| | - Roman A Akasov
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,I. M. Sechenov First Moscow State Medical University, Trubetskaya Str. 8-2, Moscow 119991, Russia
| | - Yanjun Zhang
- Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin 300052, China.,Imperial College London, Department of Medicine, London W12 0NN, United Kingdom
| | - Pavel Novak
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Imperial College London, Department of Medicine, London W12 0NN, United Kingdom
| | - Sergey V Salikhov
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia
| | - Maxim A Abakumov
- N. I. Pirogov Russian National Research Medical University, Ostrovityanova Street 1/7, Moscow 117997, Russia
| | - Yasufumi Takahashi
- Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | | | - Natalia L Klyachko
- Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia
| | - Alexander G Majouga
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia.,D. Mendeleev University of Chemical Technology of Russia, Miusskaya Square, 9, Moscow 125047, Russia
| | - Yuri E Korchev
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Imperial College London, Department of Medicine, London W12 0NN, United Kingdom
| | - Alexander S Erofeev
- National University of Science and Technology "MISiS", Leninskiy Avenue, 4, Moscow 119049, Russia.,Lomonosov Moscow State University, Chemistry Department, Leninskie Gory, 1, 3, Moscow 119991, Russia
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56
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Chen R, Alanis K, Welle TM, Shen M. Nanoelectrochemistry in the study of single-cell signaling. Anal Bioanal Chem 2020; 412:6121-6132. [PMID: 32424795 DOI: 10.1007/s00216-020-02655-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 04/02/2020] [Accepted: 04/08/2020] [Indexed: 12/28/2022]
Abstract
Label-free biosensing has been the dream of scientists and biotechnologists as reported by Vollmer and Arnold (Nat Methods 5:591-596, 2008). The ability of examining living cells is crucial to cell biology as noted by Fang (Int J Electrochem 2011:460850, 2011). Chemical measurement with electrodes is label-free and has demonstrated capability of studying living cells. In recent years, nanoelectrodes of different functionality have been developed. These nanometer-sized electrodes, coupled with scanning electrochemical microscopy (SECM), have further enabled nanometer spatial resolution study in aqueous environments. Developments in the field of nanoelectrochemistry have allowed measurement of signaling species at single cells, contributing to better understanding of cell biology. Leading studies using nanoelectrochemistry of a variety of cellular signaling molecules, including redox-active neurotransmitter (e.g., dopamine), non-redox-active neurotransmitter (e.g., acetylcholine), reactive oxygen species (ROS), and reactive nitrogen species (RNS), are reviewed here.
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Affiliation(s)
- Ran Chen
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Kristen Alanis
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Theresa M Welle
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA
| | - Mei Shen
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL, 61801, USA.
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57
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58
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Polymer/enzyme-modified HF-etched carbon nanoelectrodes for single-cell analysis. Bioelectrochemistry 2020; 133:107487. [PMID: 32120322 DOI: 10.1016/j.bioelechem.2020.107487] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/01/2020] [Accepted: 02/14/2020] [Indexed: 11/20/2022]
Abstract
Carbon-based nanoelectrodes fabricated by means of pyrolysis of an alkane precursor gas purged through a glass capillary and subsequently etched with HF were modified with redox polymer/enzyme films for the detection of glucose at the single-cell level. Glucose oxidase (GOx) was immobilized and electrically wired by means of an Os-complex-modified redox polymer in a sequential dip coating process. For the synthesis of the redox polymer matrix, a poly(1-vinylimidazole-co-acrylamide)-based backbone was used that was first modified with the electron transfer mediator [Os(bpy)2Cl]+ (bpy = 2,2'-bipyridine) followed by the conversion of the amide groups within the acrylamide monomer into hydrazide groups in a polymer-analogue reaction. The hydrazide groups react readily with bifunctional epoxide-based crosslinkers ensuring high film stability. Insertion of the nanometre-sized polymer/enzyme modified electrodes into adherently growing single NG108-15 cells resulted in a positive current response correlating with the intracellular glucose concentration. Moreover, the nanosensors showed a stable current output without significant loss in performance after intracellular measurements.
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59
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Alova A, Erofeev A, Gorelkin P, Bibikova T, Korchev Y, Majouga A, Bulychev A. Prolonged oxygen depletion in microwounded cells of Chara corallina detected with novel oxygen nanosensors. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:386-398. [PMID: 31563950 DOI: 10.1093/jxb/erz433] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
Primary physicochemical steps in microwounding of plants were investigated using electrochemical nano- and microprobes, with a focus on the role of oxygen in the wounding responses of individual plant cells. Electrochemical measurements of cell oxygen content were made with carbon-filled quartz micropipettes with platinum-coated tips (oxygen nanosensors). These novel platinum nanoelectrodes are useful for understanding cell oxygen metabolism and can be employed to study the redox biochemistry and biology of cells, tissues and organisms. We show here that microinjury of Chara corallina internodal cells with the tip of a glass micropipette is associated with a drastic decrease in oxygen concentration at the vicinity of the stimulation site. This decrease is reversible and lasts for up to 40 minutes. Membrane stretching, calcium influx, and cytoskeleton rearrangements were found to be essential for the localized oxygen depletion induced by cell wall microwounding. Inhibition of electron transport in chloroplasts or mitochondria did not affect the magnitude or timing of the observed response. In contrast, the inhibition of NADPH oxidase activity caused a significant reduction in the amplitude of the decrease in oxygen concentration. We suggest that the observed creation of localized anoxic conditions in response to cell wall puncture might be mediated by NADPH oxidase.
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Affiliation(s)
- Anna Alova
- Lomonosov Moscow State University, Leninskiye gory, Moscow, Russian Federation
| | - Alexander Erofeev
- Lomonosov Moscow State University, Leninskiye gory, Moscow, Russian Federation
- National University of Science and Technology 'MISIS', Moscow, Russian Federation
| | - Petr Gorelkin
- Medical Nanotechnology LLC, Skolkovo Innovation Center, Moscow, Russian Federation
| | - Tatyana Bibikova
- Lomonosov Moscow State University, Leninskiye gory, Moscow, Russian Federation
| | - Yury Korchev
- Department of Medicine, Imperial College, London, UK
- WPI Nano Life Science Institute, Kanazawa University, Kakuma-machi, Kanazawa, Japan
| | - Alexander Majouga
- Lomonosov Moscow State University, Leninskiye gory, Moscow, Russian Federation
- Dmitry Mendeleev University of Chemical Technology of Russia, Miusskaya, Moscow, Russian Federation
| | - Alexander Bulychev
- Lomonosov Moscow State University, Leninskiye gory, Moscow, Russian Federation
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60
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Marquitan M, Mark MD, Ernst A, Muhs A, Herlitze S, Ruff A, Schuhmann W. Glutamate detection at the cellular level by means of polymer/enzyme multilayer modified carbon nanoelectrodes. J Mater Chem B 2020; 8:3631-3639. [DOI: 10.1039/c9tb02461a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Carbon nanoelectrodes in the sub-micron range were modified with an enzyme cascade immobilized in a spatially separated polymer double layer system for the detection of glutamate at the cellular level.
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Affiliation(s)
- Miriam Marquitan
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- D-44780 Bochum
- Germany
| | - Melanie D. Mark
- Department of General Zoology and Neurobiology Ruhr University Bochum Universitätsstr. 150
- D-44780 Bochum
- Germany
| | - Andrzej Ernst
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- D-44780 Bochum
- Germany
| | - Anna Muhs
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- D-44780 Bochum
- Germany
| | - Stefan Herlitze
- Department of General Zoology and Neurobiology Ruhr University Bochum Universitätsstr. 150
- D-44780 Bochum
- Germany
| | - Adrian Ruff
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- D-44780 Bochum
- Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- D-44780 Bochum
- Germany
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61
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Tang Y, Yang XK, Zhang XW, Wu WT, Zhang FL, Jiang H, Liu YL, Amatore C, Huang WH. Harpagide, a natural product, promotes synaptic vesicle release as measured by nanoelectrode amperometry. Chem Sci 2019; 11:778-785. [PMID: 34123052 PMCID: PMC8146302 DOI: 10.1039/c9sc05538j] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder characterized by progressive loss of dopaminergic (DAergic) neurons and low level of dopamine (DA) in the midbrain. Recent studies suggested that some natural products can protect neurons against injury, but their role on neurotransmitter release and the underlying mechanisms remained unknown. In this work, nanoelectrode electrochemistry was used for the first time to quantify DA release inside single DAergic synapses. Our results unambiguously demonstrated that harpagide, a natural product, effectively enhances synaptic DA release and restores DA release at normal levels from injured neurons in PD model. These important protective and curative effects are shown to result from the fact that harpagide efficiently inhibits the phosphorylation and aggregation of α-synuclein by alleviating the intracellular reactive oxygen level, being beneficial for vesicle loading and recycling. This establishes that harpagide offers promising avenues for preventive or therapeutic interventions against PD and other neurodegenerative disorders. Nanoelectrode amperometry was used to monitor DA release inside single DAergic synapses, and demonstrated that harpagide effectively enhances synaptic DA release by reducing intracellular ROS generation and inhibiting α-Syn phosphorylation.![]()
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Affiliation(s)
- Yun Tang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Xiao-Ke Yang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Xin-Wei Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Wen-Tao Wu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Fu-Li Zhang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Hong Jiang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Yan-Ling Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
| | - Christian Amatore
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University Xiamen 361005 China .,PASTEUR, Departement de Chimie, Pcole Normale Superieure, PSL Research University, Sorbonne Universites, UPMC Univ. Paris 06, CNRS 24 rue Lhomond 75005 Paris France
| | - Wei-Hua Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 China
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62
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Dervisevic E, Tuck KL, Voelcker NH, Cadarso VJ. Recent Progress in Lab-On-a-Chip Systems for the Monitoring of Metabolites for Mammalian and Microbial Cell Research. SENSORS (BASEL, SWITZERLAND) 2019; 19:E5027. [PMID: 31752167 PMCID: PMC6891382 DOI: 10.3390/s19225027] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/13/2019] [Accepted: 11/14/2019] [Indexed: 12/11/2022]
Abstract
Lab-on-a-chip sensing technologies have changed how cell biology research is conducted. This review summarises the progress in the lab-on-a-chip devices implemented for the detection of cellular metabolites. The review is divided into two subsections according to the methods used for the metabolite detection. Each section includes a table which summarises the relevant literature and also elaborates the advantages of, and the challenges faced with that particular method. The review continues with a section discussing the achievements attained due to using lab-on-a-chip devices within the specific context. Finally, a concluding section summarises what is to be resolved and discusses the future perspectives.
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Affiliation(s)
- Esma Dervisevic
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia;
| | - Kellie L. Tuck
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia;
| | - Nicolas H. Voelcker
- Monash Institute of Pharmaceutical Sciences (MIPS), Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia;
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Clayton, VIC 3168, Australia
- The Melbourne Centre for Nanofabrication, Australian National Fabrication Facility-Victorian Node, Clayton, VIC 3800, Australia
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Victor J. Cadarso
- Department of Mechanical and Aerospace Engineering, Monash University, Clayton, VIC 3800, Australia;
- The Melbourne Centre for Nanofabrication, Australian National Fabrication Facility-Victorian Node, Clayton, VIC 3800, Australia
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63
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Darvishi S, Pick H, Lin TE, Zhu Y, Li X, Ho PC, Girault HH, Lesch A. Tape-Stripping Electrochemical Detection of Melanoma. Anal Chem 2019; 91:12900-12908. [DOI: 10.1021/acs.analchem.9b02819] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Sorour Darvishi
- Laboratory of Physical and Analytical Electrochemistry, École Polytechnique Fédérale de Lausanne (EPFL), Valais Wallis, Rue de l’Industrie 17, CH-1950 Sion, Switzerland
| | - Horst Pick
- Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, EPFL, CH-1015 Lausanne, Switzerland
| | - Tzu-En Lin
- Institute of Biomedical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan
| | - Yingdi Zhu
- Laboratory of Physical and Analytical Electrochemistry, École Polytechnique Fédérale de Lausanne (EPFL), Valais Wallis, Rue de l’Industrie 17, CH-1950 Sion, Switzerland
| | - Xiaoyun Li
- Department of Oncology, University of Lausanne, Ch. des Boveresses 155, CH-1015 Epalinges, Switzerland
- Ludwig Institute for Cancer Research, University of Lausanne, Ch. des Boveresses 155, CH-1015 Epalinges, Switzerland
| | - Ping-Chih Ho
- Department of Oncology, University of Lausanne, Ch. des Boveresses 155, CH-1015 Epalinges, Switzerland
- Ludwig Institute for Cancer Research, University of Lausanne, Ch. des Boveresses 155, CH-1015 Epalinges, Switzerland
| | - Hubert H. Girault
- Laboratory of Physical and Analytical Electrochemistry, École Polytechnique Fédérale de Lausanne (EPFL), Valais Wallis, Rue de l’Industrie 17, CH-1950 Sion, Switzerland
| | - Andreas Lesch
- Department of Industrial Chemistry “Toso Montanari”, University of Bologna, Viale del Risorgimento 4, IT-40136 Bologna, Italy
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64
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Desbiolles BXE, de Coulon E, Bertsch A, Rohr S, Renaud P. Intracellular Recording of Cardiomyocyte Action Potentials with Nanopatterned Volcano-Shaped Microelectrode Arrays. NANO LETTERS 2019; 19:6173-6181. [PMID: 31424942 DOI: 10.1021/acs.nanolett.9b02209] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Micronanotechnology-based multielectrode arrays have led to remarkable progress in the field of transmembrane voltage recording of excitable cells. However, providing long-term optoporation- or electroporation-free intracellular access remains a considerable challenge. In this study, a novel type of nanopatterned volcano-shaped microelectrode (nanovolcano) is described that spontaneously fuses with the cell membrane and permits stable intracellular access. The complex nanostructure was manufactured following a simple and scalable fabrication process based on ion beam etching redeposition. The resulting ring-shaped structure provided passive intracellular access to neonatal rat cardiomyocytes. Intracellular action potentials were successfully recorded in vitro from different devices, and continuous recording for more than 1 h was achieved. By reporting transmembrane action potentials at potentially high spatial resolution without the need to apply physical triggers, the nanovolcanoes show distinct advantages over multielectrode arrays for the assessment of electrophysiological characteristics of cardiomyocyte networks at the transmembrane voltage level over time.
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Affiliation(s)
- B X E Desbiolles
- Laboratory of Microsystems LMIS4 , Ecole Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
| | - E de Coulon
- Group Rohr, Department of Physiology , University of Bern , 3012 Bern , Switzerland
| | - A Bertsch
- Laboratory of Microsystems LMIS4 , Ecole Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
| | - S Rohr
- Group Rohr, Department of Physiology , University of Bern , 3012 Bern , Switzerland
| | - P Renaud
- Laboratory of Microsystems LMIS4 , Ecole Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
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65
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Bettazzi F, Palchetti I. Nanotoxicity assessment: A challenging application for cutting edge electroanalytical tools. Anal Chim Acta 2019; 1072:61-74. [DOI: 10.1016/j.aca.2019.04.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 04/07/2019] [Accepted: 04/16/2019] [Indexed: 12/18/2022]
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66
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Akasov RA, Sholina NV, Khochenkov DA, Alova AV, Gorelkin PV, Erofeev AS, Generalova AN, Khaydukov EV. Photodynamic therapy of melanoma by blue-light photoactivation of flavin mononucleotide. Sci Rep 2019; 9:9679. [PMID: 31273268 PMCID: PMC6609768 DOI: 10.1038/s41598-019-46115-w] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/19/2019] [Indexed: 12/13/2022] Open
Abstract
Melanoma is one of the most aggressive and lethal form of cancer. Photodynamic therapy (PDT) is a clinically approved technique for cancer treatment, including non-melanoma skin cancer. However, the most of conventional photosensitizers are of low efficacy against melanoma due to the possible dark toxicity at high drug concentrations, melanin pigmentation, and induction of anti-oxidant defense mechanisms. In the current research we propose non-toxic flavin mononucleotide (FMN), which is a water-soluble form of riboflavin (vitamin B2) as a promising agent for photodynamic therapy of melanoma. We demonstrated selective accumulation of FMN in melanoma cells in vivo and in vitro in comparison with keratinocytes and fibroblasts. Blue light irradiation with dose 5 J/cm2 of melanoma cells pre-incubated with FMN led to cell death through apoptosis. Thus, the IC50 values of human melanoma A375, Mel IL, and Mel Z cells were in a range of FMN concentration 10–30 µM that can be achieved in tumor tissue under systemic administration. The efficiency of reactive oxygen species (ROS) generation under FMN blue light irradiation was measured in single melanoma cells by a label-free technique using an electrochemical nanoprobe in a real-time control manner. Melanoma xenograft regression in mice was observed as a result of intravenous injection of FMN followed by blue-light irradiation of tumor site. The inhibition of tumor growth was 85–90% within 50 days after PDT treatment.
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Affiliation(s)
- R A Akasov
- I.M. Sechenov First Moscow State Medical University, 119991, Trubetskaya str. 8-2, Moscow, Russia. .,Shemyakin - Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, 117997, Miklukho-Maklaya str. 16/10, Moscow, Russia. .,Federal Scientific Research Center «Crystallography and Photonics» Russian Academy of Sciences, 119333, Leninskiy Prospekt 59, Moscow, Russia. .,National University of Science and Technology «MISIS», Leninskiy Prospect 4, 119991, Moscow, Russia.
| | - N V Sholina
- I.M. Sechenov First Moscow State Medical University, 119991, Trubetskaya str. 8-2, Moscow, Russia.,Federal Scientific Research Center «Crystallography and Photonics» Russian Academy of Sciences, 119333, Leninskiy Prospekt 59, Moscow, Russia.,FSBSI "N.N. Blokhin National medical research center for oncology" of Ministry of Health of the Russian Federation, 115478, Kashirskoe Shosse 24, Moscow, Russia
| | - D A Khochenkov
- Federal Scientific Research Center «Crystallography and Photonics» Russian Academy of Sciences, 119333, Leninskiy Prospekt 59, Moscow, Russia.,FSBSI "N.N. Blokhin National medical research center for oncology" of Ministry of Health of the Russian Federation, 115478, Kashirskoe Shosse 24, Moscow, Russia.,Togliatti State University, 445020, Belorusskaya str. 14, Togliatti, Russia
| | - A V Alova
- Lomonosov Moscow State University, 119991, Leninskiye Gory 1-3, Moscow, Russia
| | - P V Gorelkin
- Medical Nanotechnology LLC, Stroiteley 4-5-47, 119311, Moscow, Russia
| | - A S Erofeev
- Lomonosov Moscow State University, 119991, Leninskiye Gory 1-3, Moscow, Russia.,National University of Science and Technology «MISIS», Leninskiy Prospect 4, 119991, Moscow, Russia
| | - A N Generalova
- Shemyakin - Ovchinnikov Institute of Bioorganic Chemistry Russian Academy of Sciences, 117997, Miklukho-Maklaya str. 16/10, Moscow, Russia.,Federal Scientific Research Center «Crystallography and Photonics» Russian Academy of Sciences, 119333, Leninskiy Prospekt 59, Moscow, Russia
| | - E V Khaydukov
- I.M. Sechenov First Moscow State Medical University, 119991, Trubetskaya str. 8-2, Moscow, Russia.,Federal Scientific Research Center «Crystallography and Photonics» Russian Academy of Sciences, 119333, Leninskiy Prospekt 59, Moscow, Russia.,Volgograd State University, 400062, Universitetskiy Prospect, 100, Volgograd, Russia
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67
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Shin M, Wang Y, Borgus JR, Venton BJ. Electrochemistry at the Synapse. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2019; 12:297-321. [PMID: 30707593 PMCID: PMC6989097 DOI: 10.1146/annurev-anchem-061318-115434] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Electrochemical measurements of neurotransmitters provide insight into the dynamics of neurotransmission. In this review, we describe the development of electrochemical measurements of neurotransmitters and how they started with extrasynaptic measurements but now are pushing toward synaptic measurements. Traditionally, biosensors or fast-scan cyclic voltammetry have monitored extrasynaptic levels of neurotransmitters, such as dopamine, serotonin, adenosine, glutamate, and acetylcholine. Amperometry and electrochemical cytometry techniques have revealed mechanisms of exocytosis, suggesting partial release. Advances in nanoelectrodes now allow spatially resolved, electrochemical measurements in a synapse, which is only 20-100 nm wide. Synaptic measurements of dopamine and acetylcholine have been made. In this article, electrochemical measurements are also compared to optical imaging and mass spectrometry measurements, and while these other techniques provide enhanced spatial or chemical information, electrochemistry is best at monitoring real-time neurotransmission. Future challenges include combining electrochemistry with these other techniques in order to facilitate multisite and multianalyte monitoring.
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Affiliation(s)
| | | | - Jason R Borgus
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901, USA;
| | - B Jill Venton
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22901, USA;
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68
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Takahashi Y, Zhou Y, Fukuma T. [In situ chemical sensing by using scanning probe microscope]. Nihon Yakurigaku Zasshi 2019; 153:267-272. [PMID: 31178531 DOI: 10.1254/fpj.153.267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Scanning electrochemical microscopy (SECM), which utilizes microelectrodes as a probe to measure the chemicals released and consumed by cells as current signal, is a promising tool for measuring the metabolites of cells. We have improved SECM resolution for single cell imaging by miniaturizing the size of the electrode and developing hybrid system of SECM and scanning ion conductance microscopy (SICM), which utilizes nanopipette as a probe to measure live cell topography. SECM-SICM provides simultaneous imaging of concentration profiles of chemical substances and cell surface topography. Using this system, we successfully measured the release of neurotransmitters from PC12 cells. In addition, the nanoscale electrodes are useful for intracellular chemical detection by inserting the electrodes into cells and measured reactive oxygen species (ROS).
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Affiliation(s)
| | - Yuanshu Zhou
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University
| | - Takeshi Fukuma
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University
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69
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Gao R, Lin Y, Ying YL, Hu YX, Xu SW, Ruan LQ, Yu RJ, Li YJ, Li HW, Cui LF, Long YT. Wireless nanopore electrodes for analysis of single entities. Nat Protoc 2019; 14:2015-2035. [PMID: 31168087 DOI: 10.1038/s41596-019-0171-5] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 04/02/2019] [Indexed: 11/09/2022]
Abstract
Measurements of a single entity underpin knowledge of the heterogeneity and stochastics in the behavior of molecules, nanoparticles, and cells. Electrochemistry provides a direct and fast method to analyze single entities as it probes electron/charge-transfer processes. However, a highly reproducible electrochemical-sensing nanointerface is often hard to fabricate because of a lack of control of the fabrication processes at the nanoscale. In comparison with conventional micro/nanoelectrodes with a metal wire inside, we present a general and easily implemented protocol that describes how to fabricate and use a wireless nanopore electrode (WNE). Nanoscale metal deposition occurs at the tip of the nanopipette, providing an electroactive sensing interface. The WNEs utilize a dynamic ionic flow instead of a metal wire to sense the interfacial redox process. WNEs provide a highly controllable interface with a 30- to 200-nm diameter. This protocol presents the construction and characterization of two types of WNEs-the open-type WNE and closed-type WNE-which can be used to achieve reproducible electrochemical measurements of single entities. Combined with the related signal amplification mechanisms, we also describe how WNEs can be used to detect single redox molecules/ions, analyze the metabolism of single cells, and discriminate single nanoparticles in a mixture. This protocol is broadly applicable to studies of living cells, nanomaterials, and sensors at the single-entity level. The total time required to complete the protocol is ~10-18 h. Each WNE costs ~$1-$3.
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Affiliation(s)
- Rui Gao
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yao Lin
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yi-Lun Ying
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China. .,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China.
| | - Yong-Xu Hu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Su-Wen Xu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Lin-Qi Ruan
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Ru-Jia Yu
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yuan-Jie Li
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Hao-Wen Li
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Ling-Fei Cui
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Yi-Tao Long
- School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, China.,School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
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70
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Yin L, Zhang Z, Liu Y, Gao Y, Gu J. Recent advances in single-cell analysis by mass spectrometry. Analyst 2019; 144:824-845. [PMID: 30334031 DOI: 10.1039/c8an01190g] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Cells are the most basic structural units that play vital roles in the functioning of living organisms. Analysis of the chemical composition and content of a single cell plays a vital role in ensuring precise investigations of cellular metabolism, and is a crucial aspect of lipidomic and proteomic studies. In addition, structural knowledge provides a better understanding of cell behavior as well as the cellular and subcellular mechanisms. However, single-cell analysis can be very challenging due to the very small size of each cell as well as the large variety and extremely low concentrations of substances found in individual cells. On account of its high sensitivity and selectivity, mass spectrometry holds great promise as an effective technique for single-cell analysis. Numerous mass spectrometric techniques have been developed to elucidate the molecular profiles at the cellular level, including electrospray ionization mass spectrometry (ESI-MS), secondary ion mass spectrometry (SIMS), laser-based mass spectrometry and inductively coupled plasma mass spectrometry (ICP-MS). In this review, the recent advances in single-cell analysis by mass spectrometry are summarized. The strategies of different ionization modes to achieve single-cell analysis are classified and discussed in detail.
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Affiliation(s)
- Lei Yin
- Research Institute of Translational Medicine, The First Hospital of Jilin University, Jilin University, Dongminzhu Street, Changchun 130061, PR China.
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71
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Electrochemical monitoring of reactive oxygen/nitrogen species and redox balance in living cells. Anal Bioanal Chem 2019; 411:4365-4374. [PMID: 31011787 DOI: 10.1007/s00216-019-01734-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/19/2019] [Accepted: 02/27/2019] [Indexed: 10/27/2022]
Abstract
Levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in cells and cell redox balance are of great interest in live cells as they are correlated to several pathological and physiological conditions of living cells. ROS and RNS detection is limited due to their spatially restricted abundance: they are usually located in sub-cellular areas (e.g., in specific organelles) at low concentration. In this work, we will review and highlight the electrochemical approach to this bio-analytical issue. Combining electrochemical methods and miniaturization strategies, specific, highly sensitive, time, and spatially resolved measurements of cellular oxidative stress and redox balance analysis are possible. Graphical abstract In this work, we highlight and review the use of electrochemistry for the highly spatial and temporal resolved detection of ROS/RNS levels and of redox balance in living cells. These levels are central in several pathological and physiological conditions and the electrochemical approach is a vibrant bio-analytical trend in this field.
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72
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Tang H, Zhu J, Wang D, Li Y. Dual-signal amplification strategy for miRNA sensing with high sensitivity and selectivity by use of single Au nanowire electrodes. Biosens Bioelectron 2019; 131:88-94. [DOI: 10.1016/j.bios.2019.02.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 01/15/2019] [Accepted: 02/01/2019] [Indexed: 12/15/2022]
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73
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Luo T, Fan L, Zhu R, Sun D. Microfluidic Single-Cell Manipulation and Analysis: Methods and Applications. MICROMACHINES 2019; 10:E104. [PMID: 30717128 PMCID: PMC6412357 DOI: 10.3390/mi10020104] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/28/2019] [Accepted: 01/30/2019] [Indexed: 12/18/2022]
Abstract
In a forest of a hundred thousand trees, no two leaves are alike. Similarly, no two cells in a genetically identical group are the same. This heterogeneity at the single-cell level has been recognized to be vital for the correct interpretation of diagnostic and therapeutic results of diseases, but has been masked for a long time by studying average responses from a population. To comprehensively understand cell heterogeneity, diverse manipulation and comprehensive analysis of cells at the single-cell level are demanded. However, using traditional biological tools, such as petri-dishes and well-plates, is technically challengeable for manipulating and analyzing single-cells with small size and low concentration of target biomolecules. With the development of microfluidics, which is a technology of manipulating and controlling fluids in the range of micro- to pico-liters in networks of channels with dimensions from tens to hundreds of microns, single-cell study has been blooming for almost two decades. Comparing to conventional petri-dish or well-plate experiments, microfluidic single-cell analysis offers advantages of higher throughput, smaller sample volume, automatic sample processing, and lower contamination risk, etc., which made microfluidics an ideal technology for conducting statically meaningful single-cell research. In this review, we will summarize the advances of microfluidics for single-cell manipulation and analysis from the aspects of methods and applications. First, various methods, such as hydrodynamic and electrical approaches, for microfluidic single-cell manipulation will be summarized. Second, single-cell analysis ranging from cellular to genetic level by using microfluidic technology is summarized. Last, we will also discuss the advantages and disadvantages of various microfluidic methods for single-cell manipulation, and then outlook the trend of microfluidic single-cell analysis.
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Affiliation(s)
- Tao Luo
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China.
| | - Lei Fan
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China.
| | - Rong Zhu
- State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China.
| | - Dong Sun
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong, China.
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China.
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74
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Vaneev A, Alova A, Erofeev A, Gorelkin P, Aleksashkin A, Beznos O, Chesnokova N, Kost O, Majouga A, Korchev Y, Klyachko N. Detecting reactive oxygen species in biological fluids by platinum nanoelectrode applying amperometric method. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2019. [DOI: 10.24075/brsmu.2018.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Reactive oxygen species (ROS) are vital metabolites in numerous biological functions. Disorders of cellular mechanisms can cause overproduction of ROS and, subsequently, oxidative damage to DNA, proteins, cells and tissues, which is associated with the pathogenesis of a number of neurodegenerative and inflammatory diseases. Development of highly sensitive, relatively simple and fast-to-implement innovative methods to detect oxidative stress requires understanding of how such disorders relate to the level of ROS. This research aimed to apply the biological fluids' ROS detection method we have developed (using the stable platinum nanoelectrode that allows assessing the level of hydrogen peroxide (H2O2) down to 1 μM) and determine the level of H2O2 in lacrimal and intraocular fluids of rabbits, as well as to investigate how the level of H2O2 changes under the influence of antioxidant therapy. The effect superoxide dismutase (SOD) nanoparticles produce on biological fluids' ROS level was shown. The level of H2O2 in lacrimal fluid increased 10 and 30 min after instillation of SOD nanoparticles. As for the intraocular fluid, H2O2 concentration starts to grow only 30 min after instillation of SOD nanoparticles, which suggests that the they penetrate the internal structures of the eye gradually. The method seems to be of value in the context of eye diseases diagnosing and treatment.
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Affiliation(s)
| | - A.V. Alova
- Lomonosov Moscow State University, Moscow
| | - A.S. Erofeev
- National University of Science and Technology "MISiS", Moscow
| | | | | | - O.V. Beznos
- Helmholtz Institute of Ophthalmology, Moscow
| | | | - O.A. Kost
- Lomonosov Moscow State University, Moscow
| | - A.M. Majouga
- Lomonosov Moscow State University, Moscow; National University of Science and Technology "MISiS", Moscow; Dmitry Mendeleev University of Chemical Technology of Russia, Moscow
| | - Y. Korchev
- Department of Medicine, Imperial College London, London, United Kingdom; WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kanazawa, Japan
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75
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TAKAHASHI Y. Bioimaging by a Scanning Probe Microscope Using Microelectrodes and Nanopipettes. BUNSEKI KAGAKU 2019. [DOI: 10.2116/bunsekikagaku.68.33] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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76
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Filice FP, Ding Z. Analysing single live cells by scanning electrochemical microscopy. Analyst 2019; 144:738-752. [DOI: 10.1039/c8an01490f] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Scanning electrochemical microscopy (SECM) offers single live cell activities along its topography toward cellular physiology and pathology.
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Affiliation(s)
- Fraser P. Filice
- Department of Chemistry
- The University of Western Ontario
- London
- Canada
| | - Zhifeng Ding
- Department of Chemistry
- The University of Western Ontario
- London
- Canada
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77
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Xue L, Cadinu P, Paulose Nadappuram B, Kang M, Ma Y, Korchev Y, Ivanov AP, Edel JB. Gated Single-Molecule Transport in Double-Barreled Nanopores. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38621-38629. [PMID: 30360085 PMCID: PMC6243394 DOI: 10.1021/acsami.8b13721] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Single-molecule methods have been rapidly developing with the appealing prospect of transforming conventional ensemble-averaged analytical techniques. However, challenges remain especially in improving detection sensitivity and controlling molecular transport. In this article, we present a direct method for the fabrication of analytical sensors that combine the advantages of nanopores and field-effect transistors for simultaneous label-free single-molecule detection and manipulation. We show that these hybrid sensors have perfectly aligned nanopores and field-effect transistor components making it possible to detect molecular events with up to near 100% synchronization. Furthermore, we show that the transport across the nanopore can be voltage-gated to switch on/off translocations in real time. Finally, surface functionalization of the gate electrode can also be used to fine tune transport properties enabling more active control over the translocation velocity and capture rates.
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Affiliation(s)
- Liang Xue
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
| | - Paolo Cadinu
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
| | | | - Minkyung Kang
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
| | - Ye Ma
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
| | - Yuri Korchev
- Department
of Medicine, Imperial College London, London W12 0NN, U.K.
| | - Aleksandar P. Ivanov
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- E-mail: (A.P.I)
| | - Joshua B. Edel
- Department of Chemistry, Imperial College London, Exhibition Road, London SW7 2AZ, U.K.
- E-mail: (J.B.E.)
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78
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Qian RC, Lv J, Long YT. Ultrafast Mapping of Subcellular Domains via Nanopipette-Based Electroosmotically Modulated Delivery into a Single Living Cell. Anal Chem 2018; 90:13744-13750. [DOI: 10.1021/acs.analchem.8b04159] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ruo-Can Qian
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 200237 Shanghai, P.R. China
| | - Jian Lv
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 200237 Shanghai, P.R. China
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 200237 Shanghai, P.R. China
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79
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Neves MMPDS, Martín-Yerga D. Advanced Nanoscale Approaches to Single-(Bio)entity Sensing and Imaging. BIOSENSORS 2018; 8:E100. [PMID: 30373209 PMCID: PMC6316691 DOI: 10.3390/bios8040100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 10/11/2018] [Accepted: 10/23/2018] [Indexed: 01/01/2023]
Abstract
Individual (bio)chemical entities could show a very heterogeneous behaviour under the same conditions that could be relevant in many biological processes of significance in the life sciences. Conventional detection approaches are only able to detect the average response of an ensemble of entities and assume that all entities are identical. From this perspective, important information about the heterogeneities or rare (stochastic) events happening in individual entities would remain unseen. Some nanoscale tools present interesting physicochemical properties that enable the possibility to detect systems at the single-entity level, acquiring richer information than conventional methods. In this review, we introduce the foundations and the latest advances of several nanoscale approaches to sensing and imaging individual (bio)entities using nanoprobes, nanopores, nanoimpacts, nanoplasmonics and nanomachines. Several (bio)entities such as cells, proteins, nucleic acids, vesicles and viruses are specifically considered. These nanoscale approaches provide a wide and complete toolbox for the study of many biological systems at the single-entity level.
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Affiliation(s)
| | - Daniel Martín-Yerga
- Department of Chemical Engineering, KTH Royal Institute of Technology, 100-44 Stockholm, Sweden.
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80
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Filice FP, Li MSM, Ding Z. Simulation Assisted Nanoscale Imaging of Single Live Cells with Scanning Electrochemical Microscopy. ADVANCED THEORY AND SIMULATIONS 2018. [DOI: 10.1002/adts.201800124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Fraser P. Filice
- Department of ChemistryUniversity of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Michelle S. M. Li
- Department of ChemistryUniversity of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
| | - Zhifeng Ding
- Department of ChemistryUniversity of Western Ontario 1151 Richmond Street London Ontario N6A 5B7 Canada
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81
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Ortiz-Ledón CA, Zoski CG. Fabrication of Glass-Insulated Ultramicrometer to Submicrometer Carbon Fiber Electrodes to Support a Single Nanoparticle and Nanoparticle Ensembles in Electrocatalytic Investigations. Anal Chem 2018; 90:12616-12624. [DOI: 10.1021/acs.analchem.8b02785] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- César A. Ortiz-Ledón
- Center for Electrochemistry, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Cynthia G. Zoski
- Center for Electrochemistry, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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82
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Cao X, Mu L, Chen M, Bu C, Liang S, She G, Shi W. Single Silicon Nanowire‐Based Fluorescent Sensor for Endogenous Hypochlorite in an Individual Cell. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201800213] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Xingxing Cao
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lixuan Mu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Min Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Congcong Bu
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Sen Liang
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Guangwei She
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Wensheng Shi
- Key Laboratory of Photochemical Conversion and Optoelectronic MaterialsTechnical Institute of Physics and ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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83
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Song J, Xu C, Huang S, Lei W, Ruan Y, Lu H, Zhao W, Xu J, Chen H. Ultrasmall Nanopipette: Toward Continuous Monitoring of Redox Metabolism at Subcellular Level. Angew Chem Int Ed Engl 2018; 57:13226-13230. [DOI: 10.1002/anie.201808537] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Juan Song
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Cong‐Hui Xu
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Shi‐Zhen Huang
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Wen Lei
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Yi‐Fan Ruan
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Hai‐Jie Lu
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Jing‐Juan Xu
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
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84
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Song J, Xu C, Huang S, Lei W, Ruan Y, Lu H, Zhao W, Xu J, Chen H. Ultrasmall Nanopipette: Toward Continuous Monitoring of Redox Metabolism at Subcellular Level. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808537] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Juan Song
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Cong‐Hui Xu
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Shi‐Zhen Huang
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Wen Lei
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Yi‐Fan Ruan
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Hai‐Jie Lu
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Jing‐Juan Xu
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for, Life Science and Collaborative Innovation Center of, Chemistry for Life SciencesSchool of Chemistry and Chemical EngineeringNanjing University Nanjing 210023 China
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85
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Bozem M, Knapp P, Mirčeski V, Slowik EJ, Bogeski I, Kappl R, Heinemann C, Hoth M. Electrochemical Quantification of Extracellular Local H 2O 2 Kinetics Originating from Single Cells. Antioxid Redox Signal 2018; 29:501-517. [PMID: 28314376 PMCID: PMC6056260 DOI: 10.1089/ars.2016.6840] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
AIMS H2O2 is produced by all eukaryotic cells under physiological and pathological conditions. Due to its enormous relevance for cell signaling at low concentrations and antipathogenic function at high concentrations, precise quantification of extracellular local hydrogen peroxide concentrations ([H2O2]) originating from single cells is required. RESULTS Using a scanning electrochemical microscope and bare platinum disk ultramicroelectrodes, we established sensitive long-term measurements of extracellular [H2O2] kinetics originating from single primary human monocytes (MCs) ex vivo. For the electrochemical techniques square wave voltammetry, cyclic and linear scan voltammetry, and chronoamperometry, detection limits for [H2O2] were determined to be 5, 50, and 500 nM, respectively. Following phorbol ester stimulation, local [H2O2] 5-8 μm above a single MC increased by 3.4 nM/s within the first 10 min before reaching a plateau. After extracellular addition of H2O2 to an unstimulated MC, the local [H2O2] decreased on average by 4.2 nM/s due to degradation processes of the cell. Using the scanning mode of the setup, we found that H2O2 is evenly distributed around the producing cell and can still be detected up to 30 μm away from the cell. The electrochemical single-cell measurements were validated in MC populations using electron spin resonance spectroscopy and the Amplex® UltraRed assay. Innovation and Conclusion: We demonstrate a highly sensitive, spatially, and temporally resolved electrochemical approach to monitor dynamics of production and degradation processes for H2O2 separately. Local extracellular [H2O2] kinetics originating from single cells is quantified in real time. Antioxid. Redox Signal. 29, 501-517.
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Affiliation(s)
- Monika Bozem
- 1 Department of Biophysics, Faculty of Medicine, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University , Homburg, Germany
| | - Phillip Knapp
- 1 Department of Biophysics, Faculty of Medicine, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University , Homburg, Germany
| | - Valentin Mirčeski
- 2 Institute of Chemistry, Faculty of Natural Sciences and Mathematics, Ss Kiril i Metodij University , Skopje, Macedonia
| | - Ewa J Slowik
- 1 Department of Biophysics, Faculty of Medicine, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University , Homburg, Germany
| | - Ivan Bogeski
- 1 Department of Biophysics, Faculty of Medicine, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University , Homburg, Germany .,3 Cardiovascular Physiology, University Medical Center, University of Göttingen , Göttingen, Germany
| | - Reinhard Kappl
- 1 Department of Biophysics, Faculty of Medicine, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University , Homburg, Germany
| | | | - Markus Hoth
- 1 Department of Biophysics, Faculty of Medicine, Center for Integrative Physiology and Molecular Medicine (CIPMM), Saarland University , Homburg, Germany
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86
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Huang L, Li Z, Lou Y, Cao F, Zhang D, Li X. Recent Advances in Scanning Electrochemical Microscopy for Biological Applications. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1389. [PMID: 30096895 PMCID: PMC6119995 DOI: 10.3390/ma11081389] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/24/2018] [Accepted: 07/28/2018] [Indexed: 12/17/2022]
Abstract
Scanning electrochemical microscopy (SECM) is a chemical microscopy technique with high spatial resolution for imaging sample topography and mapping specific chemical species in liquid environments. With the development of smaller, more sensitive ultramicroelectrodes (UMEs) and more precise computer-controlled measurements, SECM has been widely used to study biological systems over the past three decades. Recent methodological breakthroughs have popularized SECM as a tool for investigating molecular-level chemical reactions. The most common applications include monitoring and analyzing the biological processes associated with enzymatic activity and DNA, and the physiological activity of living cells and other microorganisms. The present article first introduces the basic principles of SECM, followed by an updated review of the applications of SECM in biological studies on enzymes, DNA, proteins, and living cells. Particularly, the potential of SECM for investigating bacterial and biofilm activities is discussed.
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Affiliation(s)
- Luyao Huang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Ziyu Li
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Yuntian Lou
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Fahe Cao
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China.
| | - Dawei Zhang
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
| | - Xiaogang Li
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China.
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87
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Cao JT, Wang YL, Zhang JJ, Dong YX, Liu FR, Ren SW, Liu YM. Immuno-Electrochemiluminescent Imaging of a Single Cell Based on Functional Nanoprobes of Heterogeneous Ru(bpy)32+@SiO2/Au Nanoparticles. Anal Chem 2018; 90:10334-10339. [DOI: 10.1021/acs.analchem.8b02141] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Jun-Tao Cao
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan 464000, P.R.China
| | - Yu-Ling Wang
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan 464000, P.R.China
| | - Jing-Jing Zhang
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan 464000, P.R.China
| | - Yu-Xiang Dong
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan 464000, P.R.China
| | - Fu-Rao Liu
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan 464000, P.R.China
| | - Shu-Wei Ren
- Xinyang Central Hospital, Xinyang, Henan 464000, P.R.China
| | - Yan-Ming Liu
- College of Chemistry and Chemical Engineering, Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains, Xinyang Normal University, Xinyang, Henan 464000, P.R.China
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88
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Haldavnekar R, Venkatakrishnan K, Tan B. Non plasmonic semiconductor quantum SERS probe as a pathway for in vitro cancer detection. Nat Commun 2018; 9:3065. [PMID: 30076296 PMCID: PMC6076273 DOI: 10.1038/s41467-018-05237-x] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 06/20/2018] [Indexed: 12/17/2022] Open
Abstract
Surface-enhanced Raman scattering (SERS)-based cancer diagnostics is an important analytical tool in early detection of cancer. Current work in SERS focuses on plasmonic nanomaterials that suffer from coagulation, selectivity, and adverse biocompatibility when used in vitro, limiting this research to stand-alone biomolecule sensing. Here we introduce a label-free, biocompatible, ZnO-based, 3D semiconductor quantum probe as a pathway for in vitro diagnosis of cancer. By reducing size of the probes to quantum scale, we observed a unique phenomenon of exponential increase in the SERS enhancement up to ~106 at nanomolar concentration. The quantum probes are decorated on a nano-dendrite platform functionalized for cell adhesion, proliferation, and label-free application. The quantum probes demonstrate discrimination of cancerous and non-cancerous cells along with biomolecular sensing of DNA, RNA, proteins and lipids in vitro. The limit of detection is up to a single-cell-level detection.
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Affiliation(s)
- Rupa Haldavnekar
- Ultrashort Laser Nanomanufacturing Research Facility, Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
- BioNanoInterface Facility, Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada
| | - Krishnan Venkatakrishnan
- Ultrashort Laser Nanomanufacturing Research Facility, Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada.
- BioNanoInterface Facility, Department of Mechanical and Industrial Engineering, Ryerson University, 350 Victoria Street, Toronto, M5B 2K3, ON, Canada.
- Keenan Research Center for Biomedical Science, St. Michael's Hospital, 30 Bond Street, Toronto, M5B 1W8, ON, Canada.
| | - Bo Tan
- Nanocharacterization Laboratory, Department of Aerospace Engineering, Ryerson University, 350 Victoria Street, Toronto, ON, M5B 2K3, Canada
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89
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Affiliation(s)
- Kosuke Ino
- Graduate School of Engineering; Tohoku University; 6-6-11 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Yuji Nashimoto
- Graduate School of Engineering; Tohoku University; 6-6-11 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
- Frontier Research Institute for Interdisciplinary Sciences; Tohoku University; 6-3 Aramaki-aza Aoba, Aoba-ku Sendai 980-8578 Japan
| | - Noriko Taira
- Graduate School of Engineering; Tohoku University; 6-6-11 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
| | - Javier Ramon Azcon
- Institute for Bioengineering of Catalonia (IBEC); The Barcelona Institute of Science and Technology; Baldiri Reixac 10-12 08028 Barcelona Spain
| | - Hitoshi Shiku
- Graduate School of Engineering; Tohoku University; 6-6-11 Aramaki-aza Aoba, Aoba-ku Sendai 980-8579 Japan
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90
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Xia J, Zhou J, Zhang R, Jiang D, Jiang D. Gold-coated polydimethylsiloxane microwells for high-throughput electrochemiluminescence analysis of intracellular glucose at single cells. Anal Bioanal Chem 2018; 410:4787-4792. [PMID: 29862432 DOI: 10.1007/s00216-018-1160-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 04/29/2018] [Accepted: 05/24/2018] [Indexed: 01/12/2023]
Abstract
In this communication, a gold-coated polydimethylsiloxane (PDMS) chip with cell-sized microwells was prepared through a stamping and spraying process that was applied directly for high-throughput electrochemiluminescence (ECL) analysis of intracellular glucose at single cells. As compared with the previous multiple-step fabrication of photoresist-based microwells on the electrode, the preparation process is simple and offers fresh electrode surface for higher luminescence intensity. More luminescence intensity was recorded from cell-retained microwells than that at the planar region among the microwells that was correlated with the content of intracellular glucose. The successful monitoring of intracellular glucose at single cells using this PDMS chip will provide an alternative strategy for high-throughput single-cell analysis. Graphical abstract ᅟ.
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Affiliation(s)
- Juan Xia
- Department of Respiratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Junyu Zhou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210092, Jiangsu, China
| | - Ronggui Zhang
- Department of Urinary Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210092, Jiangsu, China
| | - Depeng Jiang
- Department of Respiratory Medicine, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, 400010, China.
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91
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Advances and Perspectives in Chemical Imaging in Cellular Environments Using Electrochemical Methods. CHEMOSENSORS 2018. [DOI: 10.3390/chemosensors6020024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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92
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Brasiliense V, Clausmeyer J, Berto P, Tessier G, Combellas C, Schuhmann W, Kanoufi F. Monitoring Cobalt-Oxide Single Particle Electrochemistry with Subdiffraction Accuracy. Anal Chem 2018; 90:7341-7348. [DOI: 10.1021/acs.analchem.8b00649] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Vitor Brasiliense
- Université
Sorbonne Paris Cité, Université Paris Diderot, ITODYS,
CNRS UMR 7086, 15 rue Jean-Antoine de Baïf, F-75013 Paris, France
| | - Jan Clausmeyer
- Analytical Chemistry—Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum, Germany
| | - Pascal Berto
- Université
Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics
Laboratory, CNRS UMR 8250, 45 Rue des Saints Pères, F-75006 Paris, France
| | - Gilles Tessier
- Université
Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics
Laboratory, CNRS UMR 8250, 45 Rue des Saints Pères, F-75006 Paris, France
| | - Catherine Combellas
- Université
Sorbonne Paris Cité, Université Paris Diderot, ITODYS,
CNRS UMR 7086, 15 rue Jean-Antoine de Baïf, F-75013 Paris, France
| | - Wolfgang Schuhmann
- Analytical Chemistry—Center for Electrochemical Sciences (CES), Ruhr-Universität Bochum, Universitätsstraße 150, D-44780 Bochum, Germany
| | - Frédéric Kanoufi
- Université
Sorbonne Paris Cité, Université Paris Diderot, ITODYS,
CNRS UMR 7086, 15 rue Jean-Antoine de Baïf, F-75013 Paris, France
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93
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Novel method for rapid toxicity screening of magnetic nanoparticles. Sci Rep 2018; 8:7462. [PMID: 29748550 PMCID: PMC5945642 DOI: 10.1038/s41598-018-25852-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Accepted: 04/30/2018] [Indexed: 01/06/2023] Open
Abstract
Iron oxide nanoparticles have attracted a great deal of research interest and have been widely used in bioscience and clinical research including as contrast agents for magnetic resonance imaging, hyperthermia and magnetic field assisted radionuclide therapy. It is therefore important to develop methods, which can provide high-throughput screening of biological responses that can predict toxicity. The use of nanoelectrodes for single cell analysis can play a vital role in this process by providing relatively fast, comprehensive, and cost-effective assessment of cellular responses. We have developed a new method for in vitro study of the toxicity of magnetic nanoparticles (NP) based on the measurement of intracellular reactive oxygen species (ROS) by a novel nanoelectrode. Previous studies have suggested that ROS generation is frequently observed with NP toxicity. We have developed a stable probe for measuring intracellular ROS using platinized carbon nanoelectrodes with a cavity on the tip integrated into a micromanipulator on an upright microscope. Our results show a significant difference for intracellular levels of ROS measured in HEK293 and LNCaP cancer cells before and after exposure to 10 nm size iron oxide NP. These results are markedly different from ROS measured after cell incubation with the same concentration of NP using standard methods where no differences have been detected. In summary we have developed a label-free method for assessing nanoparticle toxicity using the rapid (less than 30 minutes) measurement of ROS with a novel nanoelectrode.
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94
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Kubon M, Hartmann H, Moschallski M, Burkhardt C, Link G, Werner S, Lavalle P, Urban G, Vrana NE, Stelzle M. Multimodal Chemosensor-Based, Real-Time Biomaterial/Cell Interface Monitoring. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/adbi.201700236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Massimo Kubon
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
| | - Hanna Hartmann
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
| | - Meike Moschallski
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
| | - Claus Burkhardt
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
| | - Gorden Link
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
| | - Simon Werner
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
| | - Philippe Lavalle
- Institut National de la Santé et de la Recherche Médicale; INSERM Unité 1121, 11 rue Humann 67085 Strasbourg Cedex France
- Fédération de Médecine Translationnelle de Strasbourg; Fédération de Recherche Matériaux et Nanosciences Grand Est (FRMNGE); Faculté de Chirurgie Dentaire; Université de Strasbourg; 67000 Strasbourg France
| | - Gerald Urban
- IMTEK - Institute for Microsystems Engineering; University of Freiburg; Georges-Köhler-Allee 103/EG D-79110 Freiburg Germany
| | - Nihal Engin Vrana
- Institut National de la Santé et de la Recherche Médicale; INSERM Unité 1121, 11 rue Humann 67085 Strasbourg Cedex France
- Protip Medical; 8 Place de l'Hopital, 67000 Strasbourg France
| | - Martin Stelzle
- NMI Natural and Medical Sciences Institute at the University of Tübingen; Markwiesenstrasse 55 D-72770 Reutlingen Germany
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95
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Lin TE, Rapino S, Girault HH, Lesch A. Electrochemical imaging of cells and tissues. Chem Sci 2018; 9:4546-4554. [PMID: 29899947 PMCID: PMC5969511 DOI: 10.1039/c8sc01035h] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 04/09/2018] [Indexed: 01/10/2023] Open
Abstract
This minireview summarizes the recent achievements of electrochemical imaging platforms to map cellular functions in biological specimens using electrochemical scanning nano/micro-probe microscopy and 2D chips containing microelectrode arrays.
The technological and experimental progress in electrochemical imaging of biological specimens is discussed with a view on potential applications for skin cancer diagnostics, reproductive medicine and microbial testing. The electrochemical analysis of single cell activity inside cell cultures, 3D cellular aggregates and microtissues is based on the selective detection of electroactive species involved in biological functions. Electrochemical imaging strategies, based on nano/micrometric probes scanning over the sample and sensor array chips, respectively, can be made sensitive and selective without being affected by optical interference as many other microscopy techniques. The recent developments in microfabrication, electronics and cell culturing/tissue engineering have evolved in affordable and fast-sampling electrochemical imaging platforms. We believe that the topics discussed herein demonstrate the applicability of electrochemical imaging devices in many areas related to cellular functions.
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Affiliation(s)
- Tzu-En Lin
- Laboratory of Physical and Analytical Electrochemistry (LEPA) , École Polytechnique Fédéderale de Lausanne , EPFL Valais Valais , Rue de l'Industrie 17 , CP 440 , 1951 Sion , Switzerland .
| | - Stefania Rapino
- Chemistry Department "Giacomo Ciamician" , University of Bologna , Via Selmi 2 , 40126 Bologna , Italy
| | - Hubert H Girault
- Laboratory of Physical and Analytical Electrochemistry (LEPA) , École Polytechnique Fédéderale de Lausanne , EPFL Valais Valais , Rue de l'Industrie 17 , CP 440 , 1951 Sion , Switzerland .
| | - Andreas Lesch
- Laboratory of Physical and Analytical Electrochemistry (LEPA) , École Polytechnique Fédéderale de Lausanne , EPFL Valais Valais , Rue de l'Industrie 17 , CP 440 , 1951 Sion , Switzerland .
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96
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Ying YL, Hu YX, Gao R, Yu RJ, Gu Z, Lee LP, Long YT. Asymmetric Nanopore Electrode-Based Amplification for Electron Transfer Imaging in Live Cells. J Am Chem Soc 2018. [PMID: 29529376 DOI: 10.1021/jacs.7b12106] [Citation(s) in RCA: 172] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Capturing real-time electron transfer, enzyme activity, molecular dynamics, and biochemical messengers in living cells is essential for understanding the signaling pathways and cellular communications. However, there is no generalizable method for characterizing a broad range of redox-active species in a single living cell at the resolution of cellular compartments. Although nanoelectrodes have been applied in the intracellular detection of redox-active species, the fabrication of nanoelectrodes to maximize the signal-to-noise ratio of the probe remains challenging because of the stringent requirements of 3D fabrication. Here, we report an asymmetric nanopore electrode-based amplification mechanism for the real-time monitoring of NADH in a living cell. We used a two-step 3D fabrication process to develop a modified asymmetric nanopore electrode with a diameter down to 90 nm, which allowed for the detection of redox metabolism in living cells. Taking advantage of the asymmetric geometry, the above 90% potential drop at the two terminals of the nanopore electrode converts the faradaic current response into an easily distinguishable bubble-induced transient ionic current pattern. Therefore, the current signal was amplified by at least 3 orders of magnitude, which was dynamically linked to the presence of trace redox-active species. Compared to traditional wire electrodes, this wireless asymmetric nanopore electrode exhibits a high signal-to-noise ratio by increasing the current resolution from nanoamperes to picoamperes. The asymmetric nanopore electrode achieves the highly sensitive and selective probing of NADH concentrations as low as 1 pM. Moreover, it enables the real-time nanopore monitoring of the respiration chain (i.e., NADH) in a living cell and the evaluation of the effects of anticancer drugs in an MCF-7 cell. We believe that this integrated wireless asymmetric nanopore electrode provides promising building blocks for the future imaging of electron transfer dynamics in live cells.
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Affiliation(s)
- Yi-Lun Ying
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Yong-Xu Hu
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Rui Gao
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Ru-Jia Yu
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Zhen Gu
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
| | - Luke P Lee
- Biomedical Institute for Global Health Research and Technology , National University of Singapore , 117599 Singapore.,Departments of Bioengineering, Electrical Engineering, and Computer Sciences , ∥Berkeley Sensor and Actuator Center , and ⊥Biophysics Graduate Program , University of California , Berkeley , California 94720 , United States
| | - Yi-Tao Long
- Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering , East China University of Science and Technology , Shanghai 200237 , PR China
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97
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Zhang J, Zhou J, Pan R, Jiang D, Burgess JD, Chen HY. New Frontiers and Challenges for Single-Cell Electrochemical Analysis. ACS Sens 2018; 3:242-250. [PMID: 29276834 DOI: 10.1021/acssensors.7b00711] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Previous measurements of cell populations might obscure many important cellular differences, and new strategies for single-cell analyses are urgently needed to re-examine these fundamental biological principles for better diagnosis and treatment of diseases. Electrochemistry is a robust technique for the analysis of single living cells that has the advantages of minor interruption of cellular activity and provides the capability of high spatiotemporal resolution. The achievements of the past 30 years have revealed significant information about the exocytotic events of single cells to elucidate the mechanisms of cellular activity. Currently, the rapid developments of micro/nanofabrication and optoelectronic technologies drive the development of multifunctional electrodes and novel electrochemical approaches with higher resolution for single cells. In this Perspective, three new frontiers in this field, namely, electrochemical microscopy, intracellular analysis, and single-cell analysis in a biological system (i.e., neocortex and retina), are reviewed. The unique features and remaining challenges of these techniques are discussed.
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Affiliation(s)
- Jingjing Zhang
- The
State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China
| | - Junyu Zhou
- The
State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China
| | - Rongrong Pan
- The
State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China
| | - Dechen Jiang
- The
State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China
| | - James D. Burgess
- Department
of Medical Laboratory, Imaging, and Radiologic Sciences, College of
Allied Health Sciences, Augusta University, Augusta, Georgia 30912, United States
| | - Hong-Yuan Chen
- The
State Key Laboratory of Analytical Chemistry for Life Science, School
of Chemistry and Chemical Engineering, Nanjing University, Jiangsu 210093, China
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98
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Takahashi Y, Ida H, Matsumae Y, Komaki H, Zhou Y, Kumatani A, Kanzaki M, Shiku H, Matsue T. 3D electrochemical and ion current imaging using scanning electrochemical-scanning ion conductance microscopy. Phys Chem Chem Phys 2018; 19:26728-26733. [PMID: 28951914 DOI: 10.1039/c7cp05157c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Local cell-membrane permeability and ionic strength are important factors for maintaining the functions of cells. Here, we measured the spatial electrochemical and ion concentration profile near the sample surface with nanoscale resolution using scanning electrochemical microscopy (SECM) combined with scanning ion-conductance microscopy (SICM). The ion current feedback system is an effective way to control probe-sample distance without contact and monitor the kinetic effect of mediator regeneration and the chemical concentration profile. For demonstrating 3D electrochemical and ion concentration mapping, we evaluated the reaction rate of electrochemical mediator regeneration on an unbiased conductor and visualized inhomogeneous permeability and the ion concentration 3D profile on a single fixed adipocyte cell surface.
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Affiliation(s)
- Yasufumi Takahashi
- WPI-Advanced Institute for Materials Research, Tohoku University, 980-8577, Japan.
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99
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Abstract
Metabolomics, the characterization of metabolites and their changes within biological systems, has seen great technological and methodological progress over the past decade. Most metabolomic experiments involve the characterization of the small-molecule content of fluids or tissue homogenates. While these microliter and larger volume metabolomic measurements can characterize hundreds to thousands of compounds, the coverage of molecular content decreases as sample sizes are reduced to the nanoliter and even to the picoliter volume range. Recent progress has enabled the ability to characterize the major molecules found within specific individual cells. Especially within the brain, a myriad of cell types are colocalized, and oftentimes only a subset of these cells undergo changes in both healthy and pathological states. Here we highlight recent progress in mass spectrometry-based approaches used for single cell metabolomics, emphasizing their application to neuroscience research. Single cell studies can be directed to measuring differences between members of populations of similar cells (e.g., oligodendrocytes), as well as characterizing differences between cell types (e.g., neurons and astrocytes), and are especially useful for measuring changes occurring during different behavior states, exposure to diets and drugs, neuronal activity, and disease. When combined with other omics approaches such as transcriptomics, and with morphological and physiological measurements, single cell metabolomics aids fundamental neurochemical studies, has great potential in pharmaceutical development, and should improve the diagnosis and treatment of brain diseases.
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Affiliation(s)
- Meng Qi
- Department of Chemistry and the Beckman Institute, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Marina C Philip
- Department of Chemistry and the Beckman Institute, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Ning Yang
- Department of Chemistry and the Beckman Institute, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
| | - Jonathan V Sweedler
- Department of Chemistry and the Beckman Institute, University of Illinois at Urbana-Champaign , Urbana, Illinois 61801, United States
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100
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Löffler T, Wilde P, Öhl D, Chen YT, Tschulik K, Schuhmann W. Evaluation of the intrinsic catalytic activity of nanoparticles without prior knowledge of the mass loading. Faraday Discuss 2018; 210:317-332. [DOI: 10.1039/c8fd00029h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
We propose a method enabling the evaluation of intrinsic catalytic activity of nanoparticles based on the diffusion-limited steady-state current.
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Affiliation(s)
- Tobias Löffler
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Ruhr-Universität Bochum
- Bochum
- Germany
| | - Patrick Wilde
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Ruhr-Universität Bochum
- Bochum
- Germany
| | - Denis Öhl
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Ruhr-Universität Bochum
- Bochum
- Germany
| | - Yen-Ting Chen
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Ruhr-Universität Bochum
- Bochum
- Germany
| | - Kristina Tschulik
- Micro- & Nano-Electrochemistry – Center for Electrochemical Sciences (CES)
- Ruhr-Universität Bochum
- Bochum
- Germany
| | - Wolfgang Schuhmann
- Analytical Chemistry – Center for Electrochemical Sciences (CES)
- Ruhr-Universität Bochum
- Bochum
- Germany
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