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Thomas N, Lima D, Trinh D, Kuss S. Temperature Effect on the Electrochemical Current Response during Scanning Electrochemical Microscopy of Living Cells. Anal Chem 2023; 95:17962-17967. [PMID: 38029336 PMCID: PMC10720632 DOI: 10.1021/acs.analchem.3c03716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/17/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
Scanning electrochemical microscopy (SECM) is being used increasingly to monitor electrochemical processes at the interface of living cells and electrodes. This allows the detection and quantification of biomarkers that further the understanding of various diseases. Rapid SECM experiments are often carried out without monitoring the analyte solution temperature or are performed at room temperature. The reported research demonstrates that temperature control is crucial during SECM imaging of living cells to obtain reliable data. In this study, a SECM-integrated thermostatic ring on the sample stage enabled imaging of living biological cells in a constant height mode at various temperatures. Two-dimensional line scans were conducted while scanning single Adenocarcinoma Cervical cancer (HeLa) cells. Numerical modeling was carried out to evaluate the effect of the temperature on the electrochemical current response of living cells to compare the apparent heterogeneous rate constant (k0), representing cellular reaction kinetics. This study reveals that even slight temperature variations of approximately 2 °C affect the reaction kinetics of single living cells, altering the measured current during SECM.
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Affiliation(s)
- Nikita Thomas
- Chemistry
Department, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
| | - Dhésmon Lima
- Chemistry
Department, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
| | - Dao Trinh
- Laboratoire
des Sciences de l’ Ingenieur Pour l’Environment UMR-7536
CNRS, Université de la Rochelle, Avenue Michel Crépeau, 17042 La Rochelle, France
| | - Sabine Kuss
- Chemistry
Department, University of Manitoba, Winnipeg, MB, Canada R3T 2N2
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Fan A, Chen J, Li N, Guo H, Li X, Zhang L, Shao H. Probing Ca2+-induced electron transfer on the surface of self-assembled monolayer using SECM. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Huang Y, Pi C, Cui X, Wu Y. Palladium(II)‐Catalyzed Enantioselective C−H Alkenylation of Ferrocenecarboxylic Acid. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901195] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Yanzhen Huang
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Chao Pi
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Xiuling Cui
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
| | - Yangjie Wu
- College of Chemistry, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan UniversitiesZhengzhou University Zhengzhou 450052 People's Republic of China
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Dauphin-Ducharme P, Arroyo-Currás N, Plaxco KW. High-Precision Electrochemical Measurements of the Guanine-, Mismatch-, and Length-Dependence of Electron Transfer from Electrode-Bound DNA Are Consistent with a Contact-Mediated Mechanism. J Am Chem Soc 2019; 141:1304-1311. [PMID: 30605323 DOI: 10.1021/jacs.8b11341] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Despite 25 years' effort, serious questions remain regarding the mechanism(s) underlying electron transfer through (or from) electrode-bound double-stranded DNA. In part this is because a control experiment regarding the putatively critical role of guanine bases in the most widely proposed transport mechanism (hopping from guanine to guanine through the π-stack) appears to be lacking from the prior literature. In response, we have employed chronoamperometry, which allows for high-precision determination of electron transfer rates, to characterize transfer to a redox reporter appended onto electrode-bound DNA duplexes. Specifically, we have measured the effects of guanines and base mismatches on the electron transfer rate associated with such constructs. Upon doing so, we find that, counter to prior reports, the transfer rate is, to within relatively tight experimental confidence intervals, unaffected by either. Parallel studies of the dependence of the electron transfer rate on the length of the DNA suggest that transfer from this system obeys a "collision" mechanism in which the redox reporter physically contacts the electrode surface prior to the exchange of electrons.
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Affiliation(s)
- Philippe Dauphin-Ducharme
- Department of Chemistry and Biochemistry , University of California Santa Barbara , Santa Barbara , California 93106 , United States.,Center for Bioengineering , University of California Santa Barbara , Santa Barbara , California 93106 , United States
| | - Netzahualcóyotl Arroyo-Currás
- Department of Pharmacology and Molecular Sciences , Johns Hopkins School of Medicine , Baltimore , Maryland 21205 , United States
| | - Kevin W Plaxco
- Department of Chemistry and Biochemistry , University of California Santa Barbara , Santa Barbara , California 93106 , United States.,Center for Bioengineering , University of California Santa Barbara , Santa Barbara , California 93106 , United States
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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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Stragliotto MF, Fernández JL, Dassie SA, Giacomelli CE. An integrated experimental-theoretical approach to understand the electron transfer mechanism of adsorbed ferrocene-terminated alkanethiol monolayers. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2017.12.091] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Takahashi Y, Kumatani A, Shiku H, Matsue T. Scanning Probe Microscopy for Nanoscale Electrochemical Imaging. Anal Chem 2016; 89:342-357. [DOI: 10.1021/acs.analchem.6b04355] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yasufumi Takahashi
- Division
of Electrical Engineering and Computer Science, Kanazawa University, Kanazawa 920-1192, Japan
- Precursory
Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Saitama 332-0012, Japan
| | - Akichika Kumatani
- Advanced
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Graduate
School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
| | - Hitoshi Shiku
- Department
of Applied Chemistry, Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Tomokazu Matsue
- Advanced
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan
- Graduate
School of Environmental Studies, Tohoku University, Sendai 980-8579, Japan
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Mousavi MF, Mirsian S, Noori A, Ilkhani H, Sarparast M, Moradi N, Bathaie SZ, Mehrgardi MA. BSA-templated Pb Nanocluster as a Biocompatible Signaling Probe for Electrochemical EGFR Immunosensing. ELECTROANAL 2016. [DOI: 10.1002/elan.201600537] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Mir F. Mousavi
- Department of Chemistry; Tarbiat Modares University; Tehran 14115-175 Iran
| | - Samaneh Mirsian
- Department of Chemistry; Tarbiat Modares University; Tehran 14115-175 Iran
| | - Abolhassan Noori
- Department of Chemistry; Tarbiat Modares University; Tehran 14115-175 Iran
| | - Hoda Ilkhani
- Department of Chemistry; Tarbiat Modares University; Tehran 14115-175 Iran
| | - Morteza Sarparast
- Department of Chemistry; Tarbiat Modares University; Tehran 14115-175 Iran
| | - Nasrin Moradi
- Department of Chemistry; Tarbiat Modares University; Tehran 14115-175 Iran
| | - S. Zahra Bathaie
- Department of Clinical Biochemistry, Faculty of Medical Sciences; Tarbiat Modares University; Tehran 14115-111 Iran
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