1
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Zhang H, Jiang H, Liu X, Wang X. A review of innovative electrochemical strategies for bioactive molecule detection and cell imaging: Current advances and challenges. Anal Chim Acta 2024; 1285:341920. [PMID: 38057043 DOI: 10.1016/j.aca.2023.341920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 12/08/2023]
Abstract
Cellular heterogeneity poses a major challenge for tumor theranostics, requiring high-resolution intercellular bioanalysis strategies. Over the past decades, the advantages of electrochemical analysis, such as high sensitivity, good spatio-temporal resolution, and ease of use, have made it the preferred method to uncover cellular differences. To inspire more creative research, herein, we highlight seminal works in electrochemical techniques for biomolecule analysis and bioimaging. Specifically, micro/nano-electrode-based electrochemical techniques enable real-time quantitative analysis of electroactive substances relevant to life processes in the micro-nanostructure of cells and tissues. Nanopore-based technique plays a vital role in biosensing by utilizing nanoscale pores to achieve high-precision detection and analysis of biomolecules with exceptional sensitivity and single-molecule resolution. Electrochemiluminescence (ECL) technology is utilized for real-time monitoring of the behavior and features of individual cancer cells, enabling observation of their dynamic processes due to its capability of providing high-resolution and highly sensitive bioimaging of cells. Particularly, scanning electrochemical microscopy (SECM) and scanning ion conductance microscopy (SICM) which are widely used in real-time observation of cell surface biological processes and three-dimensional imaging of micro-nano structures, such as metabolic activity, ion channel activity, and cell morphology are introduced in this review. Furthermore, the expansion of the scope of cellular electrochemistry research by innovative functionalized electrodes and electrochemical imaging models and strategies to address future challenges and potential applications is also discussed in this review.
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Affiliation(s)
- Hao Zhang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Hui Jiang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China
| | - Xiaohui Liu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
| | - Xuemei Wang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu 210096, China.
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2
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Borges R, Gu C, Machado JD, Ewing AG. The dynamic nature of exocytosis from large secretory vesicles. A view from electrochemistry and imaging. Cell Calcium 2023; 110:102699. [PMID: 36708611 DOI: 10.1016/j.ceca.2023.102699] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/16/2023] [Accepted: 01/19/2023] [Indexed: 01/22/2023]
Abstract
In this brief review, we discuss the factors that modulate the quantum size and the kinetics of exocytosis. We also discuss the determinants which motivate the type of exocytosis from the so-called kiss-and-run to full fusion and along the intermediate mode of partial release. Kiss-and-run release comprises the transient opening of a nanometer (approx. 2 nm diameter) fusion pore between vesicle and plasma membrane allowing a small amount of release. Partial release comprises a larger more extended opening of the pore to allow a larger fraction of released vesicle content and is what is observed as normal full release in most electrochemical measurements. Partial release appears to be dominant in dense core vesicles and perhaps synaptic vesicles. The concept of partial release leads to the fraction released as a plastic component of exocytosis. Partial vesicular distension and the kinetics of exocytosis can be modulated by second messengers, physiological modulators, and drugs. This concept adds a novel point of regulation for the exocytotic process.
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Affiliation(s)
- Ricardo Borges
- Pharmacology Unit, Medical School, Universidad de la Laguna, Tenerife. Spain
| | - Chaoyi Gu
- Department of Chemistry and Molecular Biology, University of Gothenburg, Sweden
| | - José-David Machado
- Pharmacology Unit, Medical School, Universidad de la Laguna, Tenerife. Spain
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Sweden.
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3
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Sciurti E, Biscaglia F, Prontera C, Giampetruzzi L, Blasi L, Francioso L. Nanoelectrodes for Intracellular and Intercellular electrochemical detection: working principles, fabrication techniques and applications. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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4
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Hatamie A, He X, Zhang XW, Oomen PE, Ewing AG. Advances in nano/microscale electrochemical sensors and biosensors for analysis of single vesicles, a key nanoscale organelle in cellular communication. Biosens Bioelectron 2022; 220:114899. [DOI: 10.1016/j.bios.2022.114899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
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5
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Li J, Liang X, Zhong R, Liu M, Liu X, Yan HL, Zhou YG. Clinically Applicable Homogeneous Assay for Serological Diagnosis of Alpha-Fetoprotein by Impact Electrochemistry. ACS Sens 2022; 7:3216-3222. [PMID: 36240195 DOI: 10.1021/acssensors.2c01887] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Tumor protein quantification with high specificity, sensitivity, and efficiency is of great significance to enable early diagnosis and effective treatment. The existing methods for protein analysis usually suffer from high cost, time-consuming operation, and insufficient sensitivity, making them not clinically friendly. In this work, a label-free homogeneous sensor based on the nano-impact electroanalytic (NIE) technique was proposed for the detection of tumor protein marker alpha-fetoprotein (AFP). The detection principle is based on the recovery of current of single PtNP catalyzed hydrazine oxidation due to the release of the pre-adsorbed passivating aptamers on PtNPs from the competition of the stronger binding between the specific interaction of the AFP aptamer and AFP. The intrinsic one-by-one analytical ability of NIE allows highly sensitive detection, which can be further improved by reducing the reaction/incubation volume. Meanwhile, the current sensor avoids a laborious labeling procedure as well as the separation and washing steps due to the in situ characteristic of NIE. Accordingly, the current sensor enables efficient, highly sensitive, and specific AFP analysis. More importantly, the reliable detection of AFP in diluted real sera from hepatocellular carcinoma (HCC) patients is successfully achieved, indicating that the impact electrochemistry-based sensing platform has great potential to be applied in point-of-care devices for HCC liquid biopsy.
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Affiliation(s)
- Jiebin Li
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China.,College of Biology, Hunan University, Changsha410082, P. R. China
| | - Xianghui Liang
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha410008, P. R. China
| | - Rui Zhong
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
| | - Meijuan Liu
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
| | - Xuan Liu
- Research Center, Affiliated Nanjing Hospital of Nanjing University of Chinese Medicine, Nanjing210003, P. R. China
| | - Hai-Long Yan
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
| | - Yi-Ge Zhou
- Institute of Chemical Biology and Nanomedicine (ICBN), State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha410082, P. R. China
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6
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McCarty G, Dunaway LE, Denison JD, Sombers LA. Neurotransmitter Readily Escapes Detection at the Opposing Microelectrode Surface in Typical Amperometric Measurements of Exocytosis at Single Cells. Anal Chem 2022; 94:9548-9556. [PMID: 35750055 PMCID: PMC9281607 DOI: 10.1021/acs.analchem.2c00060] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
For decades, carbon-fiber microelectrodes have been used in amperometric measurements of neurotransmitter release at a wide variety of cell types, providing a tremendous amount of valuable information on the mechanisms involved in dense-core vesicle fusion. The electroactive molecules that are released can be detected at the opposing microelectrode surface, allowing for precise quantification as well as detailed kinetic information on the stages of neurotransmitter release. However, it remains unclear how much of the catecholamine that is released into the artificial synapse escapes detection. This work examines two separate mechanisms by which released neurotransmitter goes undetected in a typical amperometric measurement. First, diffusional loss is assessed by monitoring exocytosis at single bovine chromaffin cells using carbon-fiber microelectrodes fabricated in a recessed (cavity) geometry. This creates a microsampling vial that minimizes diffusional loss of analyte prior to detection. More molecules were detected per exocytotic release event when using a recessed cavity sensor as compared to the conventional configuration. In addition, pharmacological inhibition of the norepinephrine transporter (NET), which serves to remove catecholamine from the extracellular space, increased both the size and the time course of individual amperometric events. Overall, this study characterizes distinct physical and biological mechanisms by which released neurotransmitter escapes detection at the opposing microelectrode surface, while also revealing an important role for the NET in "presynaptic" modulation of neurotransmitter release.
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Affiliation(s)
- Gregory
S. McCarty
- Department
of Chemistry and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Lars E. Dunaway
- Department
of Chemistry and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - J. Dylan Denison
- Department
of Chemistry and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
| | - Leslie A. Sombers
- Department
of Chemistry and Comparative Medicine Institute, North Carolina
State University, Raleigh, North Carolina 27695, United States
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7
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Luy J, Ameline D, Thobie‐Gautier C, Boujtita M, Lebègue E. Detection of Bacterial Rhamnolipid Toxin by Redox Liposome Single Impact Electrochemistry. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Justine Luy
- Université de Nantes CNRS CEISAM UMR 6230 44000 Nantes France
| | - Dorine Ameline
- Université de Nantes CNRS CEISAM UMR 6230 44000 Nantes France
| | | | | | - Estelle Lebègue
- Université de Nantes CNRS CEISAM UMR 6230 44000 Nantes France
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8
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Luy J, Ameline D, Thobie-Gautier C, Boujtita M, Lebègue E. Detection of Bacterial Rhamnolipid Toxin by Redox Liposome Single Impact Electrochemistry. Angew Chem Int Ed Engl 2021; 61:e202111416. [PMID: 34816575 DOI: 10.1002/anie.202111416] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Indexed: 01/05/2023]
Abstract
The detection of Rhamnolipid virulence factor produced by Pseudomonas aeruginosa involved in nosocomial infections is reported by using the redox liposome single impact electrochemistry. Redox liposomes based on 1,2-dimyristoyl-sn-glycero-3-phosphocholine as a pure phospholipid and potassium ferrocyanide as an encapsulated redox content are designed for using the interaction of the target toxin with the lipid membrane as a sensing strategy. The electrochemical sensing principle is based on the weakening of the liposomes lipid membrane upon interaction with Rhamnolipid toxin which leads upon impact at an ultramicroelectrode to the breakdown of the liposomes and the release/electrolysis of its encapsulated redox probe. We present as a proof of concept the sensitive and fast sensing of a submicromolar concentration of Rhamnolipid which is detected after less than 30 minutes of incubation with the liposomes, by the appearing of current spikes in the chronoamperometry measurement.
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Affiliation(s)
- Justine Luy
- Université de Nantes, CNRS, CEISAM UMR 6230, 44000, Nantes, France
| | - Dorine Ameline
- Université de Nantes, CNRS, CEISAM UMR 6230, 44000, Nantes, France
| | | | | | - Estelle Lebègue
- Université de Nantes, CNRS, CEISAM UMR 6230, 44000, Nantes, France
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9
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Hatamie A, Ren L, Zhang X, Ewing AG. Vesicle Impact Electrochemical Cytometry to Determine Carbon Nanotube-Induced Fusion of Intracellular Vesicles. Anal Chem 2021; 93:13161-13168. [PMID: 34499839 PMCID: PMC8495673 DOI: 10.1021/acs.analchem.1c01462] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Carbon nanotube (CNT)-modified electrodes are used to obtain new measurements of vesicle content via amperometry. We have investigated the interaction between CNTs and isolated adrenal chromaffin vesicles (as a model) by vesicle impact electrochemical cytometry. Our data show that the presence of CNTs not only significantly increased the vesicular catecholamine number from 2,250,000 ± 112,766 molecules on a bare electrode to 3,880,000 ± 686,573 molecules on CNT/carbon fiber electrodes but also caused an enhancement in the maximum intensity of the current, which implies the existence of strong interactions between vesicle biolayers and CNTs and an altered electroporation process. We suggest that CNTs might perturb and destabilize the membrane structure of intracellular vesicles and cause the aggregation or fusion of vesicles into new vesicles with larger size and higher content. Our findings are consistent with previous computational and experimental results and support the hypothesis that CNTs as a mediator can rearrange the phospholipid bilayer membrane and trigger homotypic fusion of intracellular vesicles.
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Affiliation(s)
- Amir Hatamie
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Lin Ren
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Xinwei Zhang
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296 Gothenburg, Sweden
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10
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Glucagon-like peptide-1 receptor controls exocytosis in chromaffin cells by increasing full-fusion events. Cell Rep 2021; 36:109609. [PMID: 34433018 DOI: 10.1016/j.celrep.2021.109609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/02/2021] [Accepted: 08/04/2021] [Indexed: 11/21/2022] Open
Abstract
Agonists for glucagon-like-peptide-1 receptor (GLP-1R) are currently used for the treatment of type 2 diabetes and obesity. Their benefits have been centered on pancreas and hypothalamus, but their roles in other organ systems are not well understood. We studied the action of GLP-1R on secretions of adrenal medulla. Exendin-4, a synthetic analog of GLP-1, increases the synthesis and the release of catecholamines (CAs) by increasing cyclic AMP (cAMP) production, without apparent participation of cAMP-regulated guanine nucleotide exchange factor (Epac). Exendin-4, when incubated for 24 h, increases CA synthesis by promoting the activation of tyrosine hydroxylase. Short incubation (20 min) increases the quantum size of exocytotic events by switching exocytosis from partial to full fusion. Our results give a strong support to the role of GLP-1 in the fine control of exocytosis.
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11
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Asadpour F, Zhang XW, Mazloum-Ardakani M, Mirzaei M, Majdi S, Ewing AG. Vesicular release dynamics are altered by the interaction between the chemical cargo and vesicle membrane lipids. Chem Sci 2021; 12:10273-10278. [PMID: 34447531 PMCID: PMC8336585 DOI: 10.1039/d1sc02247d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 06/25/2021] [Indexed: 01/07/2023] Open
Abstract
The release of the cargo from soft vesicles, an essential process for chemical delivery, is mediated by multiple factors. Among them, the regulation by the interaction between the chemical cargo species and the vesicular membrane, widely existing in all vesicles, has not been investigated to date. Yet, these interactions hold the potential to complicate the release process. We used liposomes loaded with different monoamines, dopamine (DA) and serotonin (5-HT), to simulate vesicular release and to monitor the dynamics of chemical release from isolated vesicles during vesicle impact electrochemical cytometry (VIEC). The release of DA from liposomes presents a longer release time compared to 5-HT. Modelling the release time showed that DA filled vesicles had a higher percentage of events where the time for the peak fall was better fit to a double exponential (DblExp) decay function, suggesting multiple kinetic steps in the release. By fitting to a desorption-release model, where the transmitters adsorbed to the vesicle membrane, the dissociation rates of DA and 5-HT from the liposome membrane were estimated. DA has a lower desorption rate constant, which leads to slower DA release than that observed for 5-HT, whereas there is little difference in pore size. The alteration of vesicular release dynamics due to the interaction between the chemical cargo and vesicle membrane lipids provides an important mechanism to regulate vesicular release in chemical and physiological processes. It is highly possible that this introduces a fundamental chemical regulation difference between transmitters during exocytosis.
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Affiliation(s)
- Farzaneh Asadpour
- Department of Chemistry and Molecular Biology, University of Gothenburg 41296 Gothenburg Sweden .,Department of Chemistry, Faculty of Science, Yazd University Yazd 89195-741 Iran
| | - Xin-Wei Zhang
- Department of Chemistry and Molecular Biology, University of Gothenburg 41296 Gothenburg Sweden
| | | | - Meysam Mirzaei
- Department of Materials Science and Engineering, School of Engineering, Shiraz University Shiraz Iran
| | - Soodabeh Majdi
- Department of Chemistry and Molecular Biology, University of Gothenburg 41296 Gothenburg Sweden
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg 41296 Gothenburg Sweden
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12
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Combined electrochemistry and mass spectrometry imaging to interrogate the mechanism of action of modafinil, a cognition-enhancing drug, at the cellular and sub-cellular level. QRB DISCOVERY 2021. [PMID: 37529675 PMCID: PMC10392688 DOI: 10.1017/qrd.2021.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
AbstractModafinil is a mild psychostimulant-like drug enhancing wakefulness, improving attention and developing performance in various cognitive tasks, but its mechanism of action is not completely understood. This is the first combination of amperometry, electrochemical cytometry and mass spectrometry to interrogate the mechanism of action of a drug, here modafinil, at cellular and sub-cellular level. We employed single-cell amperometry (SCA) and intracellular vesicle impact electrochemical cytometry (IVIEC) to investigate the alterations in exocytotic release and vesicular catecholamine storage following modafinil treatment. The SCA results reveal that modafinil slows down the exocytosis process so that, the number of catecholamines released per exocytotic event is enhanced in the modafinil-treated cells. Also, IVIEC results offer an upregulation effect of modafinil on the vesicular catecholamine storage. Mass spectrometry imaging by time-of-flight secondary ion mass spectrometry (ToF-SIMS) illustrates that treatment with modafinil reduces the cylindrical-shaped phosphatidylcholine at the cellular membrane, while the high curvature lipids with conical structures such as phosphatidylethanolamine and phosphatidylinositol are elevated after modafinil treatment. Combining the results obtained by SCA, IVIEC and ToF-SIMS suggests that modafinil-treated cells release a larger portion of their vesicular content at least in part by changing the lipid composition of the cell membrane, suggesting regulation of cognition.
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13
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Bordanaba-Florit G, Royo F, Kruglik SG, Falcón-Pérez JM. Using single-vesicle technologies to unravel the heterogeneity of extracellular vesicles. Nat Protoc 2021; 16:3163-3185. [PMID: 34135505 DOI: 10.1038/s41596-021-00551-z] [Citation(s) in RCA: 109] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 03/31/2021] [Indexed: 12/12/2022]
Abstract
Extracellular vesicles (EVs) are heterogeneous lipid containers with a complex molecular cargo comprising several populations with unique roles in biological processes. These vesicles are closely associated with specific physiological features, which makes them invaluable in the detection and monitoring of various diseases. EVs play a key role in pathophysiological processes by actively triggering genetic or metabolic responses. However, the heterogeneity of their structure and composition hinders their application in medical diagnosis and therapies. This diversity makes it difficult to establish their exact physiological roles, and the functions and composition of different EV (sub)populations. Ensemble averaging approaches currently employed for EV characterization, such as western blotting or 'omics' technologies, tend to obscure rather than reveal these heterogeneities. Recent developments in single-vesicle analysis have made it possible to overcome these limitations and have facilitated the development of practical clinical applications. In this review, we discuss the benefits and challenges inherent to the current methods for the analysis of single vesicles and review the contribution of these approaches to the understanding of EV biology. We describe the contributions of these recent technological advances to the characterization and phenotyping of EVs, examination of the role of EVs in cell-to-cell communication pathways and the identification and validation of EVs as disease biomarkers. Finally, we discuss the potential of innovative single-vesicle imaging and analysis methodologies using microfluidic devices, which promise to deliver rapid and effective basic and practical applications for minimally invasive prognosis systems.
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Affiliation(s)
- Guillermo Bordanaba-Florit
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Spain.
| | - Félix Royo
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Madrid, Spain
| | - Sergei G Kruglik
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Laboratoire Jean Perrin, Paris, France
| | - Juan M Falcón-Pérez
- Exosomes Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Basque Research and Technology Alliance (BRTA), Derio, Spain. .,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (Ciberehd), Madrid, Spain. .,Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
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14
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Lakard S, Pavel IA, Lakard B. Electrochemical Biosensing of Dopamine Neurotransmitter: A Review. BIOSENSORS 2021; 11:179. [PMID: 34204902 PMCID: PMC8229248 DOI: 10.3390/bios11060179] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 12/17/2022]
Abstract
Neurotransmitters are biochemical molecules that transmit a signal from a neuron across the synapse to a target cell, thus being essential to the function of the central and peripheral nervous system. Dopamine is one of the most important catecholamine neurotransmitters since it is involved in many functions of the human central nervous system, including motor control, reward, or reinforcement. It is of utmost importance to quantify the amount of dopamine since abnormal levels can cause a variety of medical and behavioral problems. For instance, Parkinson's disease is partially caused by the death of dopamine-secreting neurons. To date, various methods have been developed to measure dopamine levels, and electrochemical biosensing seems to be the most viable due to its robustness, selectivity, sensitivity, and the possibility to achieve real-time measurements. Even if the electrochemical detection is not facile due to the presence of electroactive interfering species with similar redox potentials in real biological samples, numerous strategies have been employed to resolve this issue. The objective of this paper is to review the materials (metals and metal oxides, carbon materials, polymers) that are frequently used for the electrochemical biosensing of dopamine and point out their respective advantages and drawbacks. Different types of dopamine biosensors, including (micro)electrodes, biosensing platforms, or field-effect transistors, are also described.
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Affiliation(s)
| | | | - Boris Lakard
- Institut UTINAM, UMR CNRS 6213, University of Bourgogne Franche-Comté, 16 Route de Gray, 25030 Besançon, France; (S.L.); (I.-A.P.)
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15
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Zhao H, Ma J, Zuo X, Li F. Electrochemical Analysis for Multiscale Single Entities on the Confined Interface
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000722] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Haipei Zhao
- School of Chemistry and Chemical Engineering, and Institute of Translational Medicine Shanghai Jiao Tong University Shanghai 200240 China
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Jinliang Ma
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Xiaolei Zuo
- School of Chemistry and Chemical Engineering, and Institute of Translational Medicine Shanghai Jiao Tong University Shanghai 200240 China
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
| | - Fan Li
- Institute of Molecular Medicine, Shanghai Key Laboratory for Nucleic Acid Chemistry and Nanomedicine, Renji Hospital, School of Medicine Shanghai Jiao Tong University Shanghai 200127 China
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16
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Lee J, Lee J, Song S, Kim B. Single Microcystis Detection Through Electrochemical Collision Events on Ultramicroelectrodes. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jeeho Lee
- Department of Chemistry Sookmyung Women's University Seoul 04310 South Korea
| | - Jungeun Lee
- Department of Chemistry Sookmyung Women's University Seoul 04310 South Korea
| | - Sua Song
- Department of Chemistry Sookmyung Women's University Seoul 04310 South Korea
| | - Byung‐Kwon Kim
- Department of Chemistry Sookmyung Women's University Seoul 04310 South Korea
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17
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Barlow ST, Figueroa B, Fu D, Zhang B. Membrane Tension Modifies Redox Loading and Release in Single Liposome Electroanalysis. Anal Chem 2021; 93:3876-3882. [PMID: 33596378 DOI: 10.1021/acs.analchem.0c04536] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Here, we present a study of how liposomes are loaded and release their contents during their electrochemical detection. We loaded 200 nm liposomes with a redox mediator, ferrocyanide, and used amperometry to detect their collision on a carbon-fiber microelectrode (CFE). We found that we could control the favorability of their electroporation process and the amount of ferrocyanide released by modifying the osmolarity of the buffer in which the liposomes were suspended. Interestingly, we observed that the quantity of the released ferrocyanide varied significantly with buffer osmolarity in a nonmonotonic fashion. Using stimulated Raman scattering (SRS), we confirmed that this behavior was partly explained by fluctuations in the intravesicular redox concentration in response to osmotic pressure. To our surprise, the redox concentration obtained from SRS was much greater than that obtained from amperometry, implying that liposomes may release only a fraction of their contents during electroporation. Consistent with this hypothesis, we observed barrages of electrochemical signals that far exceeded the frequency predicted by Poisson statistics, suggesting that single liposomes can collide with the CFE and electroporate multiple times. With this study, we have resolved some outstanding questions surrounding electrochemical detection of liposomes while extending observations from giant unilamellar vesicles to 200 nm liposomes with high temporal resolution and sensitivity.
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Affiliation(s)
- Samuel T Barlow
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Benjamin Figueroa
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Dan Fu
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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18
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Mass Spectrometric Imaging of Plasma Membrane Lipid Alteration Correlated with Amperometrically Measured Activity-Dependent Plasticity in Exocytosis. Int J Mol Sci 2020; 21:ijms21249519. [PMID: 33327662 PMCID: PMC7765135 DOI: 10.3390/ijms21249519] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 12/11/2020] [Accepted: 12/11/2020] [Indexed: 11/28/2022] Open
Abstract
The mechanism of synaptic plasticity and its link to memory formation are of interest, yet relatively obscure, especially the initial chemical change in the cell membrane following transmitter release. To understand the chemical mechanism of plasticity, we studied how repetitive stimuli regulate certain membrane lipid species to enhance exocytotic release using mass spectrometric imaging. We found that increasing high-curvature lipid species and decreasing low-curvature lipids in the cell membrane favor the formation of a longer-lasting exocytotic fusion pore, resulting in higher release fraction for individual exocytotic events. The lipid changes observed following repetitive stimuli are similar to those after exposure to the cognitive enhancing drug, methylphenidate, examined in a previous study, and offer an interesting point of view regarding the link between plasticity and memory and cognition.
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19
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Neumann EK, Djambazova KV, Caprioli RM, Spraggins JM. Multimodal Imaging Mass Spectrometry: Next Generation Molecular Mapping in Biology and Medicine. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:2401-2415. [PMID: 32886506 PMCID: PMC9278956 DOI: 10.1021/jasms.0c00232] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Imaging mass spectrometry has become a mature molecular mapping technology that is used for molecular discovery in many medical and biological systems. While powerful by itself, imaging mass spectrometry can be complemented by the addition of other orthogonal, chemically informative imaging technologies to maximize the information gained from a single experiment and enable deeper understanding of biological processes. Within this review, we describe MALDI, SIMS, and DESI imaging mass spectrometric technologies and how these have been integrated with other analytical modalities such as microscopy, transcriptomics, spectroscopy, and electrochemistry in a field termed multimodal imaging. We explore the future of this field and discuss forthcoming developments that will bring new insights to help unravel the molecular complexities of biological systems, from single cells to functional tissue structures and organs.
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Affiliation(s)
- Elizabeth K Neumann
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, Tennessee 37205, United States
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
| | - Katerina V Djambazova
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, Tennessee 37235, United States
| | - Richard M Caprioli
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, Tennessee 37205, United States
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, Tennessee 37235, United States
- Department of Pharmacology, Vanderbilt University, 2220 Pierce Avenue, Nashville, Tennessee 37232, United States
- Department of Medicine, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
| | - Jeffrey M Spraggins
- Department of Biochemistry, Vanderbilt University, 607 Light Hall, Nashville, Tennessee 37205, United States
- Mass Spectrometry Research Center, Vanderbilt University, 465 21st Avenue S #9160, Nashville, Tennessee 37235, United States
- Department of Chemistry, Vanderbilt University, 7330 Stevenson Center, Station B 351822, Nashville, Tennessee 37235, United States
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20
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He C, Tao M, Zhang C, He Y, Xu W, Liu Y, Zhu W. Microelectrode-Based Electrochemical Sensing Technology for in Vivo Detection of Dopamine: Recent Developments and Future Prospects. Crit Rev Anal Chem 2020; 52:544-554. [PMID: 32852227 DOI: 10.1080/10408347.2020.1811946] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Dopamine (DA) is an essential type of neurotransmitter in the central nervous system. DA neurons usually exist as nuclei which are mainly found in the ventral tegmental area (VTN) and substantia nigra pars compacta (SNc). Parkinson's disease, epilepsy, schizophrenia and other diseases are all related to the abnormal metabolism of DA. Compared with traditional DA detection methods such as spectrophotometry and electrophoresis, electrochemical sensing technology has high detection efficiency, high sensitivity, fast and convenient real-time detection, which is recognized as the most effective method for measuring neurotransmitters in vivo. The working electrode of an electrochemical sensor can be generally divided into the conventional electrode and the microelectrode according to its size. The microelectrode shows excellent properties such as high sensitivity, high temporal resolution, and high spatial resolution while detecting DA, which makes it possible to detect neurotransmitters in vivo. In order to further investigate the role of DA in regulating action, emotion, and cognition, and to further clarify the relationship between DA abnormalities or lack and neurological diseases such as Parkinson, more and more researchers apply microelectrode-based electrochemistry sensing technology to detect DA in vivo. This article reviews recent applications of microelectrodes and the latest researches in DA detection in vivo, focusing on the following three types of microelectrodes: (1) non-nanomaterial-modified carbon fiber microelectrodes (CFE); (2) nanomaterial-modified microelectrodes; (3) microelectrode arrays (MEA).
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Affiliation(s)
- Cailing He
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Mengdan Tao
- School of Pharmacy, Nanjing Medical University, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Chenxi Zhang
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Yifang He
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Wei Xu
- School of Pharmacy, Nanjing Medical University, Nanjing, China
| | - Yan Liu
- School of Pharmacy, Nanjing Medical University, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
| | - Wanying Zhu
- School of Pharmacy, Nanjing Medical University, Nanjing, China.,Key Laboratory of Targeted Intervention of Cardiovascular Disease, Collaborative Innovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, China
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21
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Lee J, Kang Y, Chang J, Song J, Kim BK. Determination of Serotonin Concentration in Single Human Platelets through Single-Entity Electrochemistry. ACS Sens 2020; 5:1943-1948. [PMID: 32498511 DOI: 10.1021/acssensors.0c00267] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
This research introduces a method to directly detect serotonin in a single platelet through single-entity electrochemistry. Platelets isolated from human blood were analyzed by cyclic voltammetry and current-time measurements. When a single platelet collides with an ultramicroelectrode, serotonin inside the platelet is oxidized at the electrode surface, and an anodic current peak is consequently observed during measurement. The concentration of serotonin can be determined by integrating this peak current. In addition, this method can be used to determine the platelet concentration. Analysis of the collision frequency of platelets can provide information about the platelet concentration in the blood. As a result, platelet levels and serotonin concentrations in single platelets can be measured quickly and easily.
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Affiliation(s)
- Jungeun Lee
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Republic of Korea
| | - Yeji Kang
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Republic of Korea
| | - Jinho Chang
- Department of Chemistry and Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul 04763, Republic of Korea
| | - Jaewoo Song
- Department of Laboratory Medicine, Yonsei University College of Medicine, Severance Children’s Hospital, Seoul 03722, Republic of Korea
| | - Byung-Kwon Kim
- Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Republic of Korea
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22
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Gorman BL, Brunet MA, Pham SN, Kraft ML. Measurement of Absolute Concentration at the Subcellular Scale. ACS NANO 2020; 14:6414-6419. [PMID: 32510923 DOI: 10.1021/acsnano.0c04285] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The concentration of a pharmaceutical drug or bioactive metabolite within the target organelle influences the effects elicited by the drug or metabolite. Although the relative concentrations of many compounds of interest within subcellular compartments have been measured, measurements of absolute concentrations in the organelle remain elusive. In this Perspective, we discuss a significant advance in using nano secondary ion mass spectrometry (nanoSIMS) to measure the absolute concentration of a 13C-labeled metabolite within secretory vesicles, as reported by Thomen et al. in the April issue of ACS Nano.
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23
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24
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Lebègue E, Barrière F, Bard AJ. Lipid Membrane Permeability of Synthetic Redox DMPC Liposomes Investigated by Single Electrochemical Collisions. Anal Chem 2020; 92:2401-2408. [DOI: 10.1021/acs.analchem.9b02809] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Estelle Lebègue
- Université de Nantes, CNRS, CEISAM UMR 6230, F-44000 Nantes, France
| | - Frédéric Barrière
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes - UMR 6226, F-35000 Rennes, France
| | - Allen J. Bard
- Center for Electrochemistry, Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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25
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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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26
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Ren L, Dowlatshahi Pour M, Malmberg P, Ewing AG. Altered Lipid Composition of Secretory Cells Following Exposure to Zinc Can Be Correlated to Changes in Exocytosis. Chemistry 2019; 25:5406-5411. [PMID: 30762272 DOI: 10.1002/chem.201900010] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Indexed: 12/20/2022]
Abstract
A micromolar concentration of zinc has been shown to significantly change the dynamics of exocytosis as well as the vesicle contents in a model cell line, providing direct evidence that zinc regulates neurotransmitter release. To provide insight into how zinc modulates these exocytotic processes, neurotransmitter release and vesicle content were compared with single cell amperometry and intracellular impact vesicle cytometry with a range of zinc concentrations. Additionally, time-of-flight secondary ion mass spectrometry (ToF-SIMS) images of lipid distributions in the cell membrane after zinc treatment correlate to changes in exocytosis. By combining electrochemical techniques and mass spectrometry imaging, we proposed a mechanism by which zinc changes the fusion pore and the rate of neurotransmitter release by changing lipid distributions and results in the modulation of synaptic strength and plasticity.
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Affiliation(s)
- Lin Ren
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Masoumeh Dowlatshahi Pour
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
- Chemical Imaging Infrastructure, CII, University of Gothenburg and Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Per Malmberg
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
- Chemical Imaging Infrastructure, CII, University of Gothenburg and Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Andrew G Ewing
- Chemical Imaging Infrastructure, CII, University of Gothenburg and Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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27
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Zhu W, Gu C, Dunevall J, Ren L, Zhou X, Ewing AG. Combined Amperometry and Electrochemical Cytometry Reveal Differential Effects of Cocaine and Methylphenidate on Exocytosis and the Fraction of Chemical Release. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813717] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wanying Zhu
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
- School of PharmacyNanjing Medical University Longmian Avenue 101 Nanjing 210029 China
| | - Chaoyi Gu
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
| | - Johan Dunevall
- Department of Chemistry and Chemical EngineeringChalmers University of Technology Kemivägen 10 41296 Gothenburg Sweden
| | - Lin Ren
- Department of Chemistry and Chemical EngineeringChalmers University of Technology Kemivägen 10 41296 Gothenburg Sweden
| | - Xuemin Zhou
- School of PharmacyNanjing Medical University Longmian Avenue 101 Nanjing 210029 China
| | - Andrew G. Ewing
- Department of Chemistry and Molecular BiologyUniversity of Gothenburg Kemivägen 10 41296 Gothenburg Sweden
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28
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Zhu W, Gu C, Dunevall J, Ren L, Zhou X, Ewing AG. Combined Amperometry and Electrochemical Cytometry Reveal Differential Effects of Cocaine and Methylphenidate on Exocytosis and the Fraction of Chemical Release. Angew Chem Int Ed Engl 2019; 58:4238-4242. [PMID: 30688389 PMCID: PMC6519382 DOI: 10.1002/anie.201813717] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Revised: 01/08/2019] [Indexed: 11/18/2022]
Abstract
Amperometry with nanotip electrodes has been applied to show cocaine and methylphenidate not only trigger declines in vesicle content and exocytotic catecholamine release in a model cell line but also differentially change the fraction of transmitter released from each individual vesicle. In addition, cocaine accelerates exocytotic release dynamics while they remain unchanged after methylphenidate treatment. The parameters from pre‐spike feet for the two drugs are also in opposition, suggesting this aspect of release is affected differentially. As cocaine and methylphenidate are psychostimulants with similar pharmacologic action but have opposite effects on cognition, these results might provide a missing link between the regulation of exocytosis and vesicles and the effect of this regulation on cognition, learning, and memory. A speculative chemical mechanism of the effect of these drugs on vesicle content and exocytosis is presented.
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Affiliation(s)
- Wanying Zhu
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden.,School of Pharmacy, Nanjing Medical University, Longmian Avenue 101, Nanjing, 210029, China
| | - Chaoyi Gu
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Johan Dunevall
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Lin Ren
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Kemivägen 10, 41296, Gothenburg, Sweden
| | - Xuemin Zhou
- School of Pharmacy, Nanjing Medical University, Longmian Avenue 101, Nanjing, 210029, China
| | - Andrew G Ewing
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemivägen 10, 41296, Gothenburg, Sweden
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29
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30
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Direct Electrolysis and Detection of Single Nanosized Water Emulsion Droplets in Organic Solvent Using Stochastic Collisions. ELECTROANAL 2018. [DOI: 10.1002/elan.201800726] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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31
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Liu Y, Xu C, Yu P, Chen X, Wang J, Mao L. Counting and Sizing of Single Vesicles/Liposomes by Electrochemical Events. ChemElectroChem 2018. [DOI: 10.1002/celc.201800616] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Yang Liu
- Research Center for Analytical Sciences Department of Chemistry, College of SciencesNortheastern University Box 332 Shenyang 110819 China
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of ChemistryThe Chinese Academy of Sciences (CAS) Beijing 100190 China
| | - Cong Xu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of ChemistryThe Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of ChemistryThe Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xuwei Chen
- Research Center for Analytical Sciences Department of Chemistry, College of SciencesNortheastern University Box 332 Shenyang 110819 China
| | - Jianhua Wang
- Research Center for Analytical Sciences Department of Chemistry, College of SciencesNortheastern University Box 332 Shenyang 110819 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of ChemistryThe Chinese Academy of Sciences (CAS) Beijing 100190 China
- University of Chinese Academy of Sciences Beijing 100049 China
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32
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Ho TL, Hoang NT, Lee J, Park JH, Kim BK. Determining mean corpuscular volume and red blood cell count using electrochemical collision events. Biosens Bioelectron 2018; 110:155-159. [DOI: 10.1016/j.bios.2018.03.053] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 03/21/2018] [Accepted: 03/22/2018] [Indexed: 01/12/2023]
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33
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Shen M, Qu Z, DesLaurier J, Welle TM, Sweedler JV, Chen R. Single Synaptic Observation of Cholinergic Neurotransmission on Living Neurons: Concentration and Dynamics. J Am Chem Soc 2018; 140:7764-7768. [PMID: 29883110 DOI: 10.1021/jacs.8b01989] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Acetylcholine, the first neurotransmitter identified more than a century ago, plays critical roles in human activities and health; however, its synaptic concentration dynamics have remained unknown. Here, we demonstrate the in situ simultaneous measurements of synaptic cholinergic transmitter concentration and release dynamics. We used nanoscale electroanalytical methods: nanoITIES electrode of 15 nm in radius and nanoresolved scanning electrochemical microscopy (SECM). Time-resolved in situ measurements unveiled information on synaptic acetylcholine concentration and release dynamics of living Aplysia neurons. The measuring technique enabled the quantitative sensing of acetylcholine with negligible interference of other ionic and redox-active species. We measured cholinergic transmitter concentrations very close to the synapse, with values as high as 2.4 mM. We observed diverse synaptic transmitter concentration dynamics consisting of singlet, doublet and multiplet events with a signal-to-noise ratio of 6 to 130. The unprecedented details about synaptic neurotransmission unveiled are instrumental for understanding brain communication and diseases in a way distinctive from extra-synaptic studies.
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Affiliation(s)
- Mei Shen
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Matthews Avenue , Urbana , Illinois 61801 , United States
| | - Zizheng Qu
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Matthews Avenue , Urbana , Illinois 61801 , United States
| | - Justin DesLaurier
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Matthews Avenue , Urbana , Illinois 61801 , United States
| | - Theresa M Welle
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Matthews Avenue , Urbana , Illinois 61801 , United States
| | - Jonathan V Sweedler
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Matthews Avenue , Urbana , Illinois 61801 , United States
| | - Ran Chen
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Matthews Avenue , Urbana , Illinois 61801 , United States
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34
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Hoang NTT, Lee J, Lee B, Kim HY, Lee J, Nguyen TL, Seo M, Kim SY, Kim BK. Observing Phase Transition of a Temperature-Responsive Polymer Using Electrochemical Collisions on an Ultramicroelectrode. Anal Chem 2018; 90:7261-7266. [DOI: 10.1021/acs.analchem.8b00437] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Nhung T. T. Hoang
- Department of Chemistry, The Research Institute of Natural Sciences, Sookmyung Women’s University, Seoul, 04310, South Korea
| | | | | | - Hae-Young Kim
- Department of Chemistry, The Research Institute of Natural Sciences, Sookmyung Women’s University, Seoul, 04310, South Korea
| | - Jungeun Lee
- Department of Chemistry, The Research Institute of Natural Sciences, Sookmyung Women’s University, Seoul, 04310, South Korea
| | - Truc Ly Nguyen
- Department of Chemistry, The Research Institute of Natural Sciences, Sookmyung Women’s University, Seoul, 04310, South Korea
| | | | | | - Byung-Kwon Kim
- Department of Chemistry, The Research Institute of Natural Sciences, Sookmyung Women’s University, Seoul, 04310, South Korea
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