1
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Xie RC, Gao J, Wang SC, Li H, Wang W. Optically Imaging In Situ Effects of Electrochemical Cycling on Single Nanoparticle Electrocatalysis. Anal Chem 2024. [PMID: 38285921 DOI: 10.1021/acs.analchem.3c04425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
Single-nanoparticle studies often need one or a series of nanoparticle populations that are designed with differences in a nominally particular structural parameter to clarify the structure-activity relationship (SAR). However, the heterogeneity of various properties within any population would make it rather difficult to approach an ideal one-parameter control. In situ modification ensures the same nanoparticle to be investigated and also avoids complicating effects from the otherwise often needed ex situ operations. Herein, we apply electrochemical cycling to single platinum nanoparticles and optically examine their SAR. An electrocatalytic fluorescent microscopic method is established to evaluate the apparent catalytic activity of a number of single nanoparticles toward the oxygen reduction reaction. Meanwhile, dark-field microscopy with the substrate electrode under a cyclic potential control is found to be able to assess the electrochemically active surface area (ECSA) of single nanoparticles via induced chloride redox electrochemistry. Consequently, nanoparticles with drastically increased catalytic activity are discovered to have larger ECSAs upon potential regulation, and interestingly, there are also a few particles with decreased activity, as opposed to the overall trend, that all develop a smaller ECSA in the process. The deactivated nanoparticles against the overall enhancement effects of potential cycling are revealed for the first time. As such, the SAR of single nanoparticles when subjected to an in situ structural control is optically demonstrated.
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Affiliation(s)
- Ruo-Chen Xie
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210093, China
| | - Jia Gao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210093, China
| | - Si-Cong Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210093, China
| | - Haoran Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210093, China
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210093, China
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2
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Oh H, Searles EK, Chatterjee S, Jia Z, Lee SA, Link S, Landes CF. Plasmon Energy Transfer Driven by Electrochemical Tuning of Methylene Blue on Single Gold Nanorods. ACS NANO 2023; 17:18280-18289. [PMID: 37672688 DOI: 10.1021/acsnano.3c05387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Plasmonic photocatalysis has attracted interest for its potential to generate energy-efficient reactions, but ultrafast internal conversion limits efficient plasmon-based chemistry. Resonance energy transfer (RET) to surface adsorbates offers a way to outcompete internal conversion pathways and also eliminate the need for sacrificial counter-reactions. Herein, we demonstrate RET between methylene blue (MB) and gold nanorods (AuNRs) using in situ single-particle spectroelectrochemistry. During electrochemically driven reversible redox reactions between MB and leucomethylene blue (LMB), we show that the homogeneous line width is broadened when spectral overlap between AuNR scattering and absorption of MB is maximized, indicating RET. Additionally, electrochemical oxidative oligomerization of MB allowed additional dipole coupling to generate RET at lower energies. Time-dependent density functional theory-based simulated absorption provided theoretical insight into the optical properties, as MB molecules were electrochemically oligomerized. Our findings show a mechanism for driving efficient plasmon-assisted processes by RET through the change in the chemical states of surface adsorbates.
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Affiliation(s)
- Hyuncheol Oh
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Emily K Searles
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Subhojyoti Chatterjee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Zhenyang Jia
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Stephen A Lee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Stephan Link
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Christy F Landes
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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3
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Elabbadi M, Boukouvala C, Hopper ER, Asselin J, Ringe E. Synthesis of Controllable Cu Shells on Au Nanoparticles with Electrodeposition: A Systematic in Situ Single Particle Study. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:5044-5053. [PMID: 36960102 PMCID: PMC10026066 DOI: 10.1021/acs.jpcc.2c08910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/04/2023] [Indexed: 06/18/2023]
Abstract
Bimetallic Cu on Au nanoparticles with controllable morphology and optical properties were obtained via electrochemical synthesis. In particular, multilobed structures with good homogeneity were achieved through the optimization of experimental parameters such as deposition current, charge transfer, and metal ion concentration. A hyperspectral dark field scattering setup was used to characterize the electrodeposition on a single particle level, with changes in localized surface plasmon resonance frequency correlated with deposition charge transfer and amount of Cu deposited as determined by electron microscopy. This demonstrated the ability to tune morphology and spectra through electrochemical parameters alone. Time-resolved in situ measurements of single particle spectra were obtained, giving an insight into the kinetics of the deposition process. Nucleation of multiple cubes of Cu initially occurs preferentially on the tips of Au nanoparticles, before growing and coalescing to form a multilobed, lumpy shell. Modifying the surface of Au nanoparticles by plasma treatment resulted in thicker and more uniform Cu shells.
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Affiliation(s)
- Mohsen Elabbadi
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge, United Kingdom CB3 0FS
- Department
of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom CB2 3EQ
| | - Christina Boukouvala
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge, United Kingdom CB3 0FS
- Department
of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom CB2 3EQ
| | - Elizabeth R. Hopper
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge, United Kingdom CB3 0FS
- Department
of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom CB2 3EQ
- Department
of Chemical Engineering and Biotechnology, University of Cambridge, West Cambridge Site, Philippa Fawcett Drive, Cambridge, United Kingdom CB3 0AS
| | - Jérémie Asselin
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge, United Kingdom CB3 0FS
- Department
of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom CB2 3EQ
| | - Emilie Ringe
- Department
of Materials Science and Metallurgy, University
of Cambridge, 27 Charles Babbage Road, Cambridge, United Kingdom CB3 0FS
- Department
of Earth Sciences, University of Cambridge, Downing Street, Cambridge, United Kingdom CB2 3EQ
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4
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Searles EK, Gomez E, Lee S, Ostovar B, Link S, Landes CF. Single-Particle Photoluminescence and Dark-Field Scattering during Charge Density Tuning. J Phys Chem Lett 2023; 14:318-325. [PMID: 36603176 DOI: 10.1021/acs.jpclett.2c03566] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Single-particle spectroelectrochemistry provides optical insight into understanding physical and chemical changes occurring on the nanoscale. While changes in dark-field scattering during electrochemical charging are well understood, changes to the photoluminescence of plasmonic nanoparticles under similar conditions are less studied. Here, we use correlated single-particle photoluminescence and dark-field scattering to compare their plasmon modulation at applied potentials. We find that changes in the emission of a single gold nanorod during charge density tuning of intraband photoluminescence can be attributed to changes in the Purcell factor and absorption cross section. Finally, modulation of interband photoluminescence provides an additional constructive observable, giving promise for establishing dual channel sensing in spectroelectrochemical measurements.
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Affiliation(s)
- Emily K Searles
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas77005, United States
| | - Eric Gomez
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas77005, United States
| | - Stephen Lee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas77005, United States
| | - Behnaz Ostovar
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas77005, United States
| | - Stephan Link
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas77005, United States
| | - Christy F Landes
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas77005, United States
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5
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Lee H, Kim K, Kang CM, Choo A, Han D, Kim J. In Situ Confocal Fluorescence Lifetime Imaging of Nanopore Electrode Arrays with Redox Active Fluorogenic Amplex Red. Anal Chem 2023; 95:1038-1046. [PMID: 36577440 DOI: 10.1021/acs.analchem.2c03742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Direct imaging of electrochemical processes on electrode surfaces is a central part of understanding spatially heterogeneous electrochemical processes on the surfaces. Herein, we report a strategy for the spatially resolved imaging of local faradaic processes on nanoscale electrochemical interfaces. This strategy is based on fluorescence lifetime imaging microscopy (FLIM) with the use of Amplex Red as a fluorogenic redox probe. After verifying the capability of Amplex Red for fluorescence lifetime imaging, we demonstrated the turn-on FLIM-based imaging of faradaic processes on the electrochemical interfaces of different dimensions. In particular, we achieved spatially resolved visualization of the local electrochemical processes occurring on even nanopore electrode arrays as well as conventional microelectrodes, including disk-shaped ultramicroelectrodes and interdigitated array microelectrodes.
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Affiliation(s)
- Hyein Lee
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul02447, Republic of Korea
| | - Kyoungsoo Kim
- Department of Chemistry, The Catholic University of Korea, Bucheon14662, Gyeonggi-do, Republic of Korea
| | - Chung Mu Kang
- Electrochemistry Laboratory, Advanced Institutes of Convergence Technology, Suwon16229, Gyeonggi-do, Republic of Korea
| | - Aeri Choo
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul02447, Republic of Korea
| | - Donghoon Han
- Department of Chemistry, The Catholic University of Korea, Bucheon14662, Gyeonggi-do, Republic of Korea
| | - Joohoon Kim
- Department of Chemistry, Research Institute for Basic Sciences, Kyung Hee University, Seoul02447, Republic of Korea.,KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul02447, Republic of Korea
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6
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Xu X, Valavanis D, Ciocci P, Confederat S, Marcuccio F, Lemineur JF, Actis P, Kanoufi F, Unwin PR. The New Era of High-Throughput Nanoelectrochemistry. Anal Chem 2023; 95:319-356. [PMID: 36625121 PMCID: PMC9835065 DOI: 10.1021/acs.analchem.2c05105] [Citation(s) in RCA: 34] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiangdong Xu
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.
| | | | - Paolo Ciocci
- Université
Paris Cité, ITODYS, CNRS, F-75013 Paris, France
| | - Samuel Confederat
- School
of Electronic and Electrical Engineering and Pollard Institute, University of Leeds, Leeds LS2 9JT, U.K.,Bragg
Centre for Materials Research, University
of Leeds, Leeds LS2 9JT, U.K.
| | - Fabio Marcuccio
- School
of Electronic and Electrical Engineering and Pollard Institute, University of Leeds, Leeds LS2 9JT, U.K.,Bragg
Centre for Materials Research, University
of Leeds, Leeds LS2 9JT, U.K.,Faculty
of Medicine, Imperial College London, London SW7 2AZ, United Kingdom
| | | | - Paolo Actis
- School
of Electronic and Electrical Engineering and Pollard Institute, University of Leeds, Leeds LS2 9JT, U.K.,Bragg
Centre for Materials Research, University
of Leeds, Leeds LS2 9JT, U.K.,
| | | | - Patrick R. Unwin
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, U.K.,
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7
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Lemineur JF, Wang H, Wang W, Kanoufi F. Emerging Optical Microscopy Techniques for Electrochemistry. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2022; 15:57-82. [PMID: 35216529 DOI: 10.1146/annurev-anchem-061020-015943] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
An optical microscope is probably the most intuitive, simple, and commonly used instrument to observe objects and discuss behaviors through images. Although the idea of imaging electrochemical processes operando by optical microscopy was initiated 40 years ago, it was not until significant progress was made in the last two decades in advanced optical microscopy or plasmonics that it could become a mainstream electroanalytical strategy. This review illustrates the potential of different optical microscopies to visualize and quantify local electrochemical processes with unprecedented temporal and spatial resolution (below the diffraction limit), up to the single object level with subnanoparticle or single-molecule sensitivity. Developed through optically and electrochemically active model systems, optical microscopy is now shifting to materials and configurations focused on real-world electrochemical applications.
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Affiliation(s)
| | - Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;
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8
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Boccorh DK, Macdonald PA, Boyle CW, Wain AJ, Berlouis LEA, Wark AW. A universal polymer shell-isolated nanoparticle (SHIN) design for single particle spectro-electrochemical SERS sensing using different core shapes. NANOSCALE ADVANCES 2021; 3:6415-6426. [PMID: 36133494 PMCID: PMC9416900 DOI: 10.1039/d1na00473e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 09/20/2021] [Indexed: 06/16/2023]
Abstract
Shell-isolated nanoparticles (SHINs) have attracted increasing interest for non-interfering plasmonic enhanced sensing in fields such as materials science, biosensing, and in various electrochemical systems. The metallic core of these nanoparticles is isolated from the surrounding environment preventing direct contact or chemical interaction with the metal surface, while still being close enough to enable localized surface plasmon enhancement of the Raman scattering signal from the analyte. This concept forms the basis of the shell isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) technique. To date, the vast majority of SHIN designs have focused on SiO2 shells around spherical nanoparticle cores and there has been very limited published research considering alternatives. In this article, we introduce a new polymer-based approach which provides excellent control over the layer thickness and can be applied to plasmonic metal nanoparticles of various shapes and sizes without compromising the overall nanoparticle morphology. The SHIN layers are shown to exhibit excellent passivation properties and robustness in the case of gold nanosphere (AuNP) and anisotropic gold nanostar (AuNS) core shapes. In addition, in situ SHINERS spectro-electrochemistry measurements performed on both SHIN and bare Au nanoparticles demonstrate the utility of the SHIN coatings. Correlated confocal Raman and SEM mapping was achieved to clearly establish single nanoparticle SERS sensitivity. Finally, confocal in situ SERS mapping enabled visualisation of the redox related molecular structure changes occurring on an electrode surface in the vicinity of individual SHIN-coated nanoparticles.
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Affiliation(s)
- Delali K Boccorh
- Centre for Molecular Nanometrology, Technology and Innovation Centre, Dept. of Pure & Applied Chemistry, University of Strathclyde 99 George St Glasgow G1 1RD UK +44 (0)141 548 3084
- National Physical Laboratory Hampton Road Teddington TW11 0LW UK
| | - Peter A Macdonald
- Centre for Molecular Nanometrology, Technology and Innovation Centre, Dept. of Pure & Applied Chemistry, University of Strathclyde 99 George St Glasgow G1 1RD UK +44 (0)141 548 3084
| | - Colm W Boyle
- Centre for Molecular Nanometrology, Technology and Innovation Centre, Dept. of Pure & Applied Chemistry, University of Strathclyde 99 George St Glasgow G1 1RD UK +44 (0)141 548 3084
| | - Andrew J Wain
- National Physical Laboratory Hampton Road Teddington TW11 0LW UK
| | - Leonard E A Berlouis
- Dept. of Pure & Applied Chemistry, University of Strathclyde 295 Cathedral St Glasgow G1 1XL UK
| | - Alastair W Wark
- Centre for Molecular Nanometrology, Technology and Innovation Centre, Dept. of Pure & Applied Chemistry, University of Strathclyde 99 George St Glasgow G1 1RD UK +44 (0)141 548 3084
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9
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Pan S, Li X, Yadav J. Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance. Phys Chem Chem Phys 2021; 23:19120-19129. [PMID: 34524292 DOI: 10.1039/d1cp02801d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review describes recent progress of spectroelectrochemistry (SEC) analysis of single metallic nanoparticles (NPs) which have strong surface plasmon resonance properties. Dark-field scattering (DFS), photoluminescence (PL), and electrogenerated chemiluminescence (ECL) are three commonly used optical methods to detect individual NPs and investigate their local redox activities in an electrochemical cell. These SEC methods are highly dependent on a strong light-scattering cross-section of plasmonic metals and their electrocatalytic characteristics. The surface chemistry and the catalyzed reaction mechanism of single NPs and their chemical transformations can be studied using these SEC methods. Recent progress in the experimental design and fundamental understanding of single-NP electrochemistry and catalyzed reactions using DFS, PL, and ECL is described along with selected examples from recent publications in this field. Perspectives on the challenges and possible solutions for these SEC methods and potential new directions are discussed.
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Affiliation(s)
- Shanlin Pan
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Xiao Li
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Jeetika Yadav
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
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10
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Gabler T, Krześniak A, Janik M, Myśliwiec A, Koba M, Buczyńska J, Jönsson-Niedziółka M, Smietana M. Electrochemistry in an optical fiber microcavity - optical monitoring of electrochemical processes in picoliter volumes. LAB ON A CHIP 2021; 21:2763-2770. [PMID: 34047326 DOI: 10.1039/d1lc00324k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, we demonstrate a novel method for multi-domain analysis of properties of analytes in volumes as small as picoliters, combining electrochemistry and optical measurements. A microcavity in-line Mach-Zehnder interferometer (μIMZI) obtained in a standard single-mode optical fiber using femtosecond laser micromachining was able to accommodate a microelectrode and optically monitor electrochemical processes inside the fiber. The interferometer shows exceptional sensitivity to changes in the optical properties of analytes in the microcavity. We show that the optical readout follows the electrochemical reactions. Here, the redox probe (ferrocenedimethanol) undergoing reactions of oxidation and reduction changes the optical properties of the analyte (refractive index and absorbance) that are monitored using the μIMZI. Measurements have been supported by numerical analysis of both optical and electrochemical phenomena. On top of the capability of the approach to perform analysis on a microscale, the difference between oxidized and reduced forms in the near-infrared region can be measured using the μIMZI, which is hardly possible using other optical techniques. The proposed multi-domain concept is a promising approach for highly reliable and ultrasensitive chemo- and biosensing.
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Affiliation(s)
- Tomasz Gabler
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warsaw, Poland.
| | - Andrzej Krześniak
- Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Monika Janik
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warsaw, Poland. and Gdańsk University of Technology, Department of Metrology and Optoelectronics, Gabriela Narutowicza 11/12, 80-233 Gdańsk, Poland
| | - Anna Myśliwiec
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warsaw, Poland.
| | - Marcin Koba
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warsaw, Poland. and National Institute of Telecommunications, Szachowa 1, 04-894 Warsaw, Poland
| | - Joanna Buczyńska
- Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Martin Jönsson-Niedziółka
- Polish Academy of Sciences, Institute of Physical Chemistry, Kasprzaka 44/52, 01-224 Warsaw, Poland.
| | - Mateusz Smietana
- Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662 Warsaw, Poland.
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11
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Liu X, Wang X, Ye S, Li R, Li H. A One-Two-Three Multifunctional System for Enhanced Imaging and Detection of Intracellular MicroRNA and Chemogene Therapy. ACS APPLIED MATERIALS & INTERFACES 2021; 13:27825-27835. [PMID: 34124898 DOI: 10.1021/acsami.1c04353] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Simultaneous imaging, diagnosis, and therapy can offer an effective strategy for cancer treatment. However, the complex probe design, poor drug release efficiency, and multidrug resistance remain tremendous challenges to cancer treatment. Here, a novel one-two-three system is built for enhanced imaging and detection of miRNA-21 (miR-21) overexpressed in cancer cell and chemogene therapy. The system consists of dual-mode DNA robot nanoprobes assembled by two types of hairpin DNAs and three-way branch DNAs modified on gold nanoparticles, with intercalating anticancer drugs (doxorubicin), into DNA duplex GC base pairs. In the system, via intracellular ATP-accelerated cyclic reaction triggered by miR-21, fluorescence and SERS signals were alternated with DNA structure switch, and the precise SERS detection of miRNA and fluorescence imaging oriented "on-demand" release of two types of anticancer drugs (anti-miR-21 and Dox) are achieved. Thus, "one-two-three" means one kind of miR-21-triggered endogenous substance accelerated cyclic reaction, two modes of signal switch, and three functions including enhanced imaging, detection, and comprehensive treatment. The one-two-three system has some notable merits. First, ATP as an endogenous substance promotes DNA structure switching and accelerates the cyclic reaction. Second, the treatment with a dual-mode signal switch is more reliable and accurate and can provide more abundant information than a single-mode treatment platform. Thus, the imaging and detection of intracellular miRNA and effective comprehensive therapy are realized. In vivo results indicate that the system can provide new insights and strategies for diagnosis and therapy.
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Affiliation(s)
- Xun Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P R China
| | - Xingxiang Wang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P R China
| | - Sujuan Ye
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P R China
| | - Ronghua Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE; College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P R China
| | - Hongxia Li
- Weifang Customs, Yuqing East Street, No.15789, High tech District, Weifang 261000, Shandong Province, China
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12
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Lemineur JF, Noël JM, Combellas C, Kanoufi F. Optical monitoring of the electrochemical nucleation and growth of silver nanoparticles on electrode: From single to ensemble nanoparticles inspection. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114043] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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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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14
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Strange LE, Yadav J, Garg S, Shinde PS, Hill JW, Hill CM, Kung P, Pan S. Investigating the Redox Properties of Two-Dimensional MoS 2 Using Photoluminescence Spectroelectrochemistry and Scanning Electrochemical Cell Microscopy. J Phys Chem Lett 2020; 11:3488-3494. [PMID: 32286830 DOI: 10.1021/acs.jpclett.0c00769] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Control over photophysical and chemical properties of two-dimensional (2D) transition metal dichalcogenides (TMDs) is the key to advance their applications in next-generation optoelectronics. Although chemical doping and surface modification with plasmonic metals have been reported to tune the photophysical and catalytic properties of 2D TMDs, there have been few reports of tuning optical properties using dynamic electrochemical control of electrode potential. Herein, we report (1) the photoluminescence (PL) enhancement and red-shift in the PL spectrum of 2D MoS2, synthesized by chemical vapor deposition and subsequent transfer onto an indium tin oxide electrode, upon electrochemical anodization and (2) spatial heterogeneities in its photoelectrochemical (PEC) activities. Spectroelectrochemistry shows that positive electrochemical bias causes an initial ten-fold increase in the PL intensity followed by a quick decrease in the enhancement. The PL enhancement and spectrum red-shift are associated with the decrease in nonradiative decay rates of excitons formed upon electrochemical anodization of 2D MoS2. Additionally, scanning electrochemical cell microscopy (SECCM) study shows that the 2D MoS2 crystal is spatially sensitive to PEC oxidation at positive potentials. SECCM also shows a photocurrent increase caused by spatially heterogeneous edge-type defect sites of the crystal.
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Affiliation(s)
| | | | | | | | - Joshua W Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Caleb M Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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15
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Śmietana M, Koba M, Sezemsky P, Szot-Karpińska K, Burnat D, Stranak V, Niedziółka-Jönsson J, Bogdanowicz R. Simultaneous optical and electrochemical label-free biosensing with ITO-coated lossy-mode resonance sensor. Biosens Bioelectron 2020; 154:112050. [DOI: 10.1016/j.bios.2020.112050] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 01/21/2020] [Accepted: 01/23/2020] [Indexed: 02/01/2023]
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16
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Wang Y, Yang Q, Su B. Spatially resolved electrochemistry enabled by thin-film optical interference. Chem Commun (Camb) 2020; 56:12359-12362. [DOI: 10.1039/d0cc05265e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical reactions occurring on the local surface can be spatially resolved by successive interferometric imaging of the nanochannel membrane coated electrode.
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Affiliation(s)
- Yafeng Wang
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
| | - Qian Yang
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
| | - Bin Su
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
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17
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Optical methods for studying local electrochemical reactions with spatial resolution: A critical review. Anal Chim Acta 2019; 1074:1-15. [DOI: 10.1016/j.aca.2019.02.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 11/19/2022]
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18
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Alshalfouh A, Oezaslan M, Dosche C, Wittstock G. Electrochemistry of CdSe Quantum Dots Studied by Single Molecule Spectroscopy. ChemElectroChem 2019. [DOI: 10.1002/celc.201801793] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Abdallatif Alshalfouh
- Institute of ChemistryCarl von Ossietzky University of Oldenburg 26111 Oldenburg Germany
| | - Mehtap Oezaslan
- Institute of ChemistryCarl von Ossietzky University of Oldenburg 26111 Oldenburg Germany
| | - Carsten Dosche
- Institute of ChemistryCarl von Ossietzky University of Oldenburg 26111 Oldenburg Germany
| | - Gunther Wittstock
- Institute of ChemistryCarl von Ossietzky University of Oldenburg 26111 Oldenburg Germany
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19
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Walmsley JD, Hill JW, Saha P, Hill CM. Probing Electrocatalytic CO2 Reduction at Individual Cu Nanostructures via Optically Targeted Electrochemical Cell Microscopy. JOURNAL OF ANALYSIS AND TESTING 2019. [DOI: 10.1007/s41664-019-00090-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Śmietana M, Niedziałkowski P, Białobrzeska W, Burnat D, Sezemsky P, Koba M, Stranak V, Siuzdak K, Ossowski T, Bogdanowicz R. Study on Combined Optical and Electrochemical Analysis Using Indium-tin-oxide-coated Optical Fiber Sensor. ELECTROANAL 2019. [DOI: 10.1002/elan.201800638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Mateusz Śmietana
- Institute of Microelectronics and Optoelectronics; Warsaw University of Technology; Koszykowa 75 00-662 Warszawa Poland
| | - Paweł Niedziałkowski
- Department of Analytical Chemistry; Faculty of Chemistry; University of Gdańsk; Wita Stwosza 63 80-308 Gdansk Gdansk Poland
| | - Wioleta Białobrzeska
- Department of Analytical Chemistry; Faculty of Chemistry; University of Gdańsk; Wita Stwosza 63 80-308 Gdansk Gdansk Poland
| | - Dariusz Burnat
- Institute of Microelectronics and Optoelectronics; Warsaw University of Technology; Koszykowa 75 00-662 Warszawa Poland
| | - Petr Sezemsky
- Institute of Physics and Biophysics; Faculty of Science; University of South Bohemia; Branisovska 1760 370 05 Ceske Budejovice Czech Republic
| | - Marcin Koba
- Institute of Microelectronics and Optoelectronics; Warsaw University of Technology; Koszykowa 75 00-662 Warszawa Poland
- National Institute of Telecommunications; Szachowa 1 04-894 Warszawa Poland
| | - Vitezslav Stranak
- Institute of Physics and Biophysics; Faculty of Science; University of South Bohemia; Branisovska 1760 370 05 Ceske Budejovice Czech Republic
| | - Katarzyna Siuzdak
- Centre for Plasma and Laser Engineering; The Szewalski Institute of Fluid-Flow Machinery; Polish Academy of Sciences; Fiszera 14 80-231 Gdańsk Poland
| | - Tadeusz Ossowski
- Department of Analytical Chemistry; Faculty of Chemistry; University of Gdańsk; Wita Stwosza 63 80-308 Gdansk Gdansk Poland
| | - Robert Bogdanowicz
- Department of Metrology and Optoelectronics; Faculty of Electronics; Telecommunications and Informatics; Gdańsk University of Technology; Narutowicza 11/12 80-233 Gdańsk Poland
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21
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Saha P, Hill JW, Walmsley JD, Hill CM. Probing Electrocatalysis at Individual Au Nanorods via Correlated Optical and Electrochemical Measurements. Anal Chem 2018; 90:12832-12839. [DOI: 10.1021/acs.analchem.8b03360] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Partha Saha
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Joshua W. Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Joshua D. Walmsley
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Caleb M. Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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22
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Doppagne B, Chong MC, Bulou H, Boeglin A, Scheurer F, Schull G. Electrofluorochromism at the single-molecule level. Science 2018; 361:251-255. [DOI: 10.1126/science.aat1603] [Citation(s) in RCA: 92] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 05/17/2018] [Indexed: 11/02/2022]
Abstract
The interplay between the oxidation state and the optical properties of molecules is important for applications in displays, sensors, and molecular-based memories. The fundamental mechanisms occurring at the level of a single molecule have been difficult to probe. We used a scanning tunneling microscope (STM) to characterize and control the fluorescence of a single zinc-phthalocyanine radical cation adsorbed on a sodium chloride–covered gold (111) sample. The neutral and oxidized states of the molecule were identified on the basis of their fluorescence spectra, which revealed very different emission energies and vibronic fingerprints. The emission of the charged molecule was controlled by tuning the thickness of the insulator and the plasmons localized at the apex of the STM tip. In addition, subnanometric variations of the tip position were used to investigate the charging and electroluminescence mechanisms.
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Affiliation(s)
- Benjamin Doppagne
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
| | - Michael C. Chong
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
| | - Hervé Bulou
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
| | - Alex Boeglin
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
| | - Fabrice Scheurer
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
| | - Guillaume Schull
- Université de Strasbourg, CNRS, IPCMS, UMR 7504, F-67000 Strasbourg, France
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23
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Wang Y, Shan X, Tao N. Emerging tools for studying single entity electrochemistry. Faraday Discuss 2018; 193:9-39. [PMID: 27722354 DOI: 10.1039/c6fd00180g] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Electrochemistry studies charge transfer and related processes at various microscopic structures (atomic steps, islands, pits and kinks on electrodes), and mesoscopic materials (nanoparticles, nanowires, viruses, vesicles and cells) made by nature and humans, involving ions and molecules. The traditional approach measures averaged electrochemical quantities of a large ensemble of these individual entities, including the microstructures, mesoscopic materials, ions and molecules. There is a need to develop tools to study single entities because a real system is usually heterogeneous, e.g., containing nanoparticles with different sizes and shapes. Even in the case of "homogeneous" molecules, they bind to different microscopic structures of an electrode, assume different conformations and fluctuate over time, leading to heterogeneous reactions. Here we highlight some emerging tools for studying single entity electrochemistry, discuss their strengths and weaknesses, and provide personal views on the need for tools with new capabilities for further advancing single entity electrochemistry.
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Affiliation(s)
- Yixian Wang
- Center for Biosensors and Bioelectronics, Biodesign Institute and School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA.
| | - Xiaonan Shan
- Center for Biosensors and Bioelectronics, Biodesign Institute and School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA.
| | - Nongjian Tao
- Center for Biosensors and Bioelectronics, Biodesign Institute and School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, Arizona 85287, USA. and State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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24
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Hoener BS, Kirchner SR, Heiderscheit TS, Collins SS, Chang WS, Link S, Landes CF. Plasmonic Sensing and Control of Single-Nanoparticle Electrochemistry. Chem 2018. [DOI: 10.1016/j.chempr.2018.04.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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25
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Sun T, Wang D, Mirkin MV. Tunneling Mode of Scanning Electrochemical Microscopy: Probing Electrochemical Processes at Single Nanoparticles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
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26
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Sun T, Wang D, Mirkin MV. Tunneling Mode of Scanning Electrochemical Microscopy: Probing Electrochemical Processes at Single Nanoparticles. Angew Chem Int Ed Engl 2018; 57:7463-7467. [DOI: 10.1002/anie.201801115] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/24/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
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27
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Abstract
Chemical activity of single nanoparticles can be imaged and determined by monitoring the optical signal of each individual during chemical reactions with advanced optical microscopes. It allows for clarifying the functional heterogeneity among individuals, and for uncovering the microscopic reaction mechanisms and kinetics that could otherwise be averaged out in ensemble measurements.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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28
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Lemineur JF, Noël JM, Combellas C, Ausserré D, Kanoufi F. The promise of antireflective gold electrodes for optically monitoring the electro-deposition of single silver nanoparticles. Faraday Discuss 2018; 210:381-395. [DOI: 10.1039/c8fd00037a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combined to electrochemical actuation, it allows the dynamic in situ visualization of the electrochemical growth and dissolution of individual Ag nanoparticles.
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Affiliation(s)
| | - Jean-Marc Noël
- Université Sorbonne Paris Cité
- Université Paris Diderot
- ITODYS
- CNRS UMR 7086
- F-75013 Paris
| | - Catherine Combellas
- Université Sorbonne Paris Cité
- Université Paris Diderot
- ITODYS
- CNRS UMR 7086
- F-75013 Paris
| | - Dominique Ausserré
- Université du Maine
- Institut des Matériaux et Molécules du Mans
- CNRS UMR 6283
- F-72000 Le Mans
- France
| | - Frédéric Kanoufi
- Université Sorbonne Paris Cité
- Université Paris Diderot
- ITODYS
- CNRS UMR 7086
- F-75013 Paris
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29
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Zhang W, Caldarola M, Pradhan B, Orrit M. Gold Nanorod Enhanced Fluorescence Enables Single‐Molecule Electrochemistry of Methylene Blue. Angew Chem Int Ed Engl 2017; 56:3566-3569. [DOI: 10.1002/anie.201612389] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Indexed: 11/12/2022]
Affiliation(s)
- Weichun Zhang
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
| | - Martín Caldarola
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
| | - Biswajit Pradhan
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
| | - Michel Orrit
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
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30
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Zhang W, Caldarola M, Pradhan B, Orrit M. Gold Nanorod Enhanced Fluorescence Enables Single‐Molecule Electrochemistry of Methylene Blue. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612389] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Weichun Zhang
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
| | - Martín Caldarola
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
| | - Biswajit Pradhan
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
| | - Michel Orrit
- Huygens-Kamerlingh Onnes Laboratory Leiden University 2300 RA Leiden The Netherlands
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31
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Mattei M, Kang G, Goubert G, Chulhai DV, Schatz GC, Jensen L, Van Duyne RP. Tip-Enhanced Raman Voltammetry: Coverage Dependence and Quantitative Modeling. NANO LETTERS 2017; 17:590-596. [PMID: 27936805 DOI: 10.1021/acs.nanolett.6b04868] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Electrochemical atomic force microscopy tip-enhanced Raman spectroscopy (EC-AFM-TERS) was employed for the first time to observe nanoscale spatial variations in the formal potential, E0', of a surface-bound redox couple. TERS cyclic voltammograms (TERS CVs) of single Nile Blue (NB) molecules were acquired at different locations spaced 5-10 nm apart on an indium tin oxide (ITO) electrode. Analysis of TERS CVs at different coverages was used to verify the observation of single-molecule electrochemistry. The resulting TERS CVs were fit to the Laviron model for surface-bound electroactive species to quantitatively extract the formal potential E0' at each spatial location. Histograms of single-molecule E0' at each coverage indicate that the electrochemical behavior of the cationic oxidized species is less sensitive to local environment than the neutral reduced species. This information is not accessible using purely electrochemical methods or ensemble spectroelectrochemical measurements. We anticipate that quantitative modeling and measurement of site-specific electrochemistry with EC-AFM-TERS will have a profound impact on our understanding of the role of nanoscale electrode heterogeneity in applications such as electrocatalysis, biological electron transfer, and energy production and storage.
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Affiliation(s)
| | | | | | - Dhabih V Chulhai
- Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
| | | | - Lasse Jensen
- Department of Chemistry, The Pennsylvania State University , University Park, Pennsylvania 16802, United States
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32
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Gieseking RL, Ratner MA, Schatz GC. Semiempirical modeling of electrochemical charge transfer. Faraday Discuss 2017; 199:547-563. [DOI: 10.1039/c6fd00234j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Nanoelectrochemical experiments using detection based on tip enhanced Raman spectroscopy (TERS) show a broad distribution of single-molecule formal potentials E°′ for large π-conjugated molecules; theoretical studies are needed to understand the origins of this distribution. In this paper, we present a theoretical approach to determine E°′ for electrochemical reactions involving a single molecule interacting with an electrode represented as a metal nanocluster and apply this method to the Ag20–pyridine system. The theory is based on the semiempirical INDO electronic structure approach, together with the COSMO solvation model and an approach for tuning the Fermi energy, in which the silver atomic orbital energies are varied until the ground singlet state of Ag20–pyridine matches the lowest triplet energy, corresponding to electron transfer from the metal cluster to pyridine. Based on this theory, we find that the variation of E°′ with the structure of the Ag20–pyridine system is only weakly correlated with changes in either the ground-state interaction energy or the charge-transfer excited-state energies at zero applied potential, which shows the importance of calculations that include an applied potential in determining the variation of formal potential with geometry. Factors which determine E°′ include wavefunction overlap for geometries when pyridine is close to the surface, and electrostatics when the molecule-cluster separation is large.
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Affiliation(s)
| | - Mark A. Ratner
- Department of Chemistry
- Northwestern University
- Evanston
- USA
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33
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Brasiliense V, Berto P, Combellas C, Kuszelewicz R, Tessier G, Kanoufi F. Electrochemical transformation of individual nanoparticles revealed by coupling microscopy and spectroscopy. Faraday Discuss 2016; 193:339-352. [PMID: 27711892 DOI: 10.1039/c6fd00098c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Although extremely sensitive, electrical measurements are essentially unable to discriminate complex chemical events involving individual nanoparticles. The coupling of electrochemistry to dark field imaging and spectroscopy allows the triggering of the electrodissolution of an ensemble of Ag nanoparticles (by electrochemistry) and the inference of both oxidation and dissolution processes (by spectroscopy) at the level of a single nanoparticle. Besides the inspection of the dissolution process from optical scattering intensity, adding optical spectroscopy reveals chemical changes through drastic spectral changes. The behaviours of single NPs and NP agglomerates are differentiated: in the presence of thiocyanate ions, the transformation of Ag single nanoparticles to AgSCN is investigated in the context of plasmonic coupling with the electrode; tentative interpretations for optically unresolved groups of nanoparticles are proposed.
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Affiliation(s)
- Vitor Brasiliense
- Sorbonne Paris Cité, Paris Diderot University, ITODYS, CNRS-UMR 7086, 15 rue Jean de Baif, F-75013 Paris, France.
| | - Pascal Berto
- Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics Laboratory, CNRS-UMR 8250, 45 rue des Saints-Pères, F-75006 Paris, France
| | - Catherine Combellas
- Sorbonne Paris Cité, Paris Diderot University, ITODYS, CNRS-UMR 7086, 15 rue Jean de Baif, F-75013 Paris, France.
| | - Robert Kuszelewicz
- Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics Laboratory, CNRS-UMR 8250, 45 rue des Saints-Pères, F-75006 Paris, France
| | - Gilles Tessier
- Sorbonne Paris Cité, Université Paris Descartes, Neurophotonics Laboratory, CNRS-UMR 8250, 45 rue des Saints-Pères, F-75006 Paris, France
| | - Frédéric Kanoufi
- Sorbonne Paris Cité, Paris Diderot University, ITODYS, CNRS-UMR 7086, 15 rue Jean de Baif, F-75013 Paris, France.
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34
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Fang Y, Wang H, Yu H, Liu X, Wang W, Chen HY, Tao NJ. Plasmonic Imaging of Electrochemical Reactions of Single Nanoparticles. Acc Chem Res 2016; 49:2614-2624. [PMID: 27662069 DOI: 10.1021/acs.accounts.6b00348] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Electrochemical reactions are involved in many natural phenomena, and are responsible for various applications, including energy conversion and storage, material processing and protection, and chemical detection and analysis. An electrochemical reaction is accompanied by electron transfer between a chemical species and an electrode. For this reason, it has been studied by measuring current, charge, or related electrical quantities. This approach has led to the development of various electrochemical methods, which have played an essential role in the understanding and applications of electrochemistry. While powerful, most of the traditional methods lack spatial and temporal resolutions desired for studying heterogeneous electrochemical reactions on electrode surfaces and in nanoscale materials. To overcome the limitations, scanning probe microscopes have been invented to map local electrochemical reactions with nanometer resolution. Examples include the scanning electrochemical microscope and scanning electrochemical cell microscope, which directly image local electrochemical reaction current using a scanning electrode or pipet. The use of a scanning probe in these microscopes provides high spatial resolution, but at the expense of temporal resolution and throughput. This Account discusses an alternative approach to study electrochemical reactions. Instead of measuring electron transfer electrically, it detects the accompanying changes in the reactant and product concentrations on the electrode surface optically via surface plasmon resonance (SPR). SPR is highly surface sensitive, and it provides quantitative information on the surface concentrations of reactants and products vs time and electrode potential, from which local reaction kinetics can be analyzed and quantified. The plasmonic approach allows imaging of local electrochemical reactions with high temporal resolution and sensitivity, making it attractive for studying electrochemical reactions in biological systems and nanoscale materials with high throughput. The plasmonic approach has two imaging modes: electrochemical current imaging and interfacial impedance imaging. The former images local electrochemical current associated with electrochemical reactions (faradic current), and the latter maps local interfacial impedance, including nonfaradic contributions (e.g., double layer charging). The plasmonic imaging technique can perform voltammetry (cyclic or square wave) in an analogous manner to the traditional electrochemical methods. It can also be integrated with bright field, dark field, and fluorescence imaging capabilities in one optical setup to provide additional capabilities. To date the plasmonic imaging technique has found various applications, including mapping of heterogeneous surface reactions, analysis of trace substances, detection of catalytic reactions, and measurement of graphene quantum capacitance. The plasmonic and other emerging optical imaging techniques (e.g., dark field and fluorescence microscopy), together with the scanning probe-based electrochemical imaging and single nanoparticle analysis techniques, provide new capabilities for one to study single nanoparticle electrochemistry with unprecedented spatial and temporal resolutions. In this Account, we focus on imaging of electrochemical reactions at single nanoparticles.
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Affiliation(s)
- Yimin Fang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hui Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hui Yu
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Xianwei Liu
- Department of Chemistry, University of Science & Technology of China, Hefei 230026, China
| | - Wei Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - N. J. Tao
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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Brasiliense V, Berto P, Combellas C, Tessier G, Kanoufi F. Electrochemistry of Single Nanodomains Revealed by Three-Dimensional Holographic Microscopy. Acc Chem Res 2016; 49:2049-57. [PMID: 27598333 DOI: 10.1021/acs.accounts.6b00335] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Interest in nanoparticles has vigorously increased over the last 20 years as more and more studies show how their use can potentially revolutionize science and technology. Their applications span many different academically and industrially relevant fields such as catalysis, materials science, health, etc. Until the past decade, however, nanoparticle studies mostly relied on ensemble studies, thus leaving aside their chemical heterogeneity at the single particle level. Over the past few years, powerful new tools appeared to probe nanoparticles individually and in situ. This Account describes how we drew inspiration from the emerging fields of nanoelectrochemistry and plasmonics-based high resolution holographic microscopy to develop a coupled approach capable of analyzing in operando (electro)chemical reaction over one single nanoparticle. A brief overview of selected optical strategies to image NPs in situ with emphasis on scattering based methods is presented. In an electrochemical context, it is necessary to track particle behavior both in solution and near a polarized electrode, which is why 3D optical observation is particularly appealing. These approaches are discussed together with strategies to track NPs beyond the diffraction limit, allowing a much finer description of their trajectories. Then, the holographic setup is used to study electrochemically triggered Ag NP oxidation reaction in the presence of different electrolytes. Holography is shown to be a powerful technique to track and analyze the trajectory of individual NPs in situ, which further sheds light on in operando behaviors such as electrogenerated NP transport, aggregation, or adsorption. We then show that spectroscopy and scattering-based optical methods are reliable and sensitive to the point of being used to investigate and quantify NP (electro)chemical reactions in model cases. However, since real chemical reactions usually take place in an inherently complex environment, approaches based exclusively on optical imaging only reach their limitations. The strategy is then taken one step further by merging together electrochemical nanoimpact experiments with 3D optical monitoring. Previous strategies are validated by showing that in simple cases, these two independent ways of probing NP size and reactivity yield the same results. For more complicated reactions (e.g., multistep reactions), one must go beyond either technique by showing that the two approaches are perfectly complementary and that the two signals contain information of different natures, thus providing a much better characterization of the reaction. This point is illustrated by studying Ag NP oxidation (single or agglomerates) in the presence of a precipitating agent, where the actual oxidation is uncoupled from the dissolution of the particle, thus proving the point of our symbiotic approach.
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Affiliation(s)
- Vitor Brasiliense
- Université Sorbonne Paris Cité, Université Paris Diderot, ITODYS CNRS UMR 7086, 15 rue Jean de Baïf, F-75013 Paris, France
| | - Pascal Berto
- 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 de Baïf, F-75013 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
| | - Frédéric Kanoufi
- Université Sorbonne Paris Cité, Université Paris Diderot, ITODYS CNRS UMR 7086, 15 rue Jean de Baïf, F-75013 Paris, France
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Affiliation(s)
- Stephen M. Oja
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Yunshan Fan
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Chadd M. Armstrong
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Peter Defnet
- 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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Zaino LP, Grismer DA, Han D, Crouch GM, Bohn PW. Single occupancy spectroelectrochemistry of freely diffusing flavin mononucleotide in zero-dimensional nanophotonic structures. Faraday Discuss 2015; 184:101-15. [PMID: 26406924 DOI: 10.1039/c5fd00072f] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Zero-mode waveguides (ZMW) have the potential to be powerful confinement tools for studying electron transfer dynamics at single molecule occupancy conditions. Flavin mononucleotide contains an isoalloxazine chromophore, which is fluorescent in the oxidized state (FMN) while the reduced state (FMNH2) exhibits dramatically lower light emission, i.e. a dark-state. This allows fluorescence emission to report the redox state of single FMN molecules, an observation that has been used previously to study single electron transfer events in surface-immobilized flavins and flavoenzymes, e.g. sarcosine oxidase, by direct wide-field imaging of ZMW arrays. Single molecule electron transfer dynamics have now been extended to the study of freely diffusing molecules using fluorescence measurements of Au ZMWs under single occupancy conditions. The Au in the ZMW serves both as an optical cladding layer and as the working electrode for potential control, thereby accessing single molecule electron transfer dynamics at μM concentrations. Consistent with expectations, the probability of observing single reduced molecules increases as the potential is scanned negative, E(appl) < E(eq), and the probability of observing emitting oxidized molecules increases at E(appl) > E(eq). Different single molecules exhibit different electron transfer properties as reflected in the position of E(eq) and the distribution of E(eq) among a population of FMN molecules. Two types of actively-controlled electroluminescence experiments were used: chronofluorometry experiments, in which the potential is alternately stepped between oxidizing and reducing potentials, and cyclic potential sweep fluorescence experiments, analogous to cyclic voltammetry, these latter experiments exhibiting a dramatic scan rate dependence with the slowest scan rates showing distinct intermediate states that are stable over a range of potentials. These states are assigned to flavosemiquinone species that are stabilized in the special environment of the ZMW nanopore.
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Affiliation(s)
- Lawrence P Zaino
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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Godin R, Sherman BD, Bergkamp JJ, Chesta CA, Moore AL, Moore TA, Palacios RE, Cosa G. Charge-Transfer Dynamics of Fluorescent Dye-Sensitized Electrodes under Applied Biases. J Phys Chem Lett 2015; 6:2688-2693. [PMID: 26266849 DOI: 10.1021/acs.jpclett.5b01061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The development of dye-sensitized solar cells requires an in-depth understanding of the interfacial charge-transfer dynamics that take place between dye sensitizers and semiconductors. Here, we describe a prototype system to probe these dynamics by monitoring in real time the fluorescence of two organic sensitizers, a perylene and a squaraine, bound to a SnO2 semiconductor thin film as a function of potentiostatic control of the Fermi level. The two different sensitizer fluorophores characterized by vastly different redox potentials undergo similar fluorescence modulation with applied bias, an indication that the density of states of the semiconductor largely influences the charge-transfer dynamics while energetics play a minimal role. We further show that the rate of photodegradation of the perylene sensitizer with applied bias provides a suitable marker to study the rate of charge injection and charge recombination. Taken together, our results demonstrate a suitable platform to visualize and study charge-transfer dynamics on films and constitute a step toward achieving single-molecule resolution in our quest to decipher the static and dynamic heterogeneity of charge-transfer dynamics in dye-sensitized photoanodes.
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Affiliation(s)
- Robert Godin
- †Department of Chemistry and Center for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
| | - Benjamin D Sherman
- §Department of Chemistry and Biochemistry, Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Jesse J Bergkamp
- §Department of Chemistry and Biochemistry, Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Carlos A Chesta
- ‡Departamento de Quı́mica, Facultad de Ciencias Exactas Fı́sico-Quı́micas y Naturales, Universidad Nacional de Rı́o Cuarto, Rı́o Cuarto, Córdoba Argentina
| | - Ana L Moore
- §Department of Chemistry and Biochemistry, Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Thomas A Moore
- §Department of Chemistry and Biochemistry, Center for Bioenergy and Photosynthesis, Arizona State University, Tempe, Arizona 85287-1604, United States
| | - Rodrigo E Palacios
- ‡Departamento de Quı́mica, Facultad de Ciencias Exactas Fı́sico-Quı́micas y Naturales, Universidad Nacional de Rı́o Cuarto, Rı́o Cuarto, Córdoba Argentina
| | - Gonzalo Cosa
- †Department of Chemistry and Center for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada
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Cristarella TC, Chinderle AJ, Hui J, Rodríguez-López J. Single-layer graphene as a stable and transparent electrode for nonaqueous radical annihilation electrogenerated chemiluminescence. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:3999-4007. [PMID: 25780938 DOI: 10.1021/la5050317] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We explored the use of single-layer graphene (SLG) obtained by chemical vapor deposition, and transferred to a glass substrate, as a transparent electrode material for use in coupled electrochemical and spectroscopic experiments in nonaqueous media through electrogenerated chemiluminescence (ECL). SLG was used with classical ECL luminophores, rubrene and 9,10-diphenylanthracene, in an inert environment to generate stable electrochemical responses and measure light emission through it. As an electrode material, SLG displayed excellent stability during electrochemical potential stepping and voltammetry in a window that spanned at least from ca. -2.4 to +1.8 V versus SCE in acetonitrile and acetonitrile/benzene. Although the peak splitting between forward and reverse sweeps in voltammetry was larger in comparison to metal electrodes due to in-plane resistance, SLG displayed sufficiently facile electron transfer properties to yield stable voltammetric cycling and ECL. SLG electrodes patterned with poly tetrafluoroethylene permitted the stable generation of radical ions on an SLG microelectrode to be studied through scanning electrochemical microscopy in the generation/collection mode. SLG was able to stably collect radical ions produced by a 50 μm gold tip with up to 96% collection efficiency. The transparency of graphene was used to obtain accurate spectral responses in ECL. While inner filter effects are known to cause a shift in peak emission wavelength of spectroelectrochemical studies, the use of SLG electrodes with detection through the graphene window reduced apparent peak shifts by up to 10 nm in peak wavelength. This work introduces SLG as a virtually transparent, electrochemically active, and chemically stable platform for studying ECL in the radical annihilation mode, where large electrode polarizations could compromise the chemical stability of other existing transparent electrodes.
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Affiliation(s)
- Teresa C Cristarella
- †Department of Chemistry and ‡Department of Material Sciences and Engineering, University of Illinois at Urbana-Champaign, 600 South Matthews Ave., Urbana, Illinois 61801, United States
| | - Adam J Chinderle
- †Department of Chemistry and ‡Department of Material Sciences and Engineering, University of Illinois at Urbana-Champaign, 600 South Matthews Ave., Urbana, Illinois 61801, United States
| | - Jingshu Hui
- †Department of Chemistry and ‡Department of Material Sciences and Engineering, University of Illinois at Urbana-Champaign, 600 South Matthews Ave., Urbana, Illinois 61801, United States
| | - Joaquín Rodríguez-López
- †Department of Chemistry and ‡Department of Material Sciences and Engineering, University of Illinois at Urbana-Champaign, 600 South Matthews Ave., Urbana, Illinois 61801, United States
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Ding C, Zhang W, Wang W, Chen Y, Li X. Amplification strategies using electrochemiluminescence biosensors for the detection of DNA, bioactive molecules and cancer biomarkers. Trends Analyt Chem 2015. [DOI: 10.1016/j.trac.2014.10.015] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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41
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Chirea M, Collins SSE, Wei X, Mulvaney P. Spectroelectrochemistry of Silver Deposition on Single Gold Nanocrystals. J Phys Chem Lett 2014; 5:4331-4335. [PMID: 26273983 DOI: 10.1021/jz502349x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report the electrodeposition of metallic silver onto gold nanostars adsorbed to ITO electrodes. The electrochemical process was studied at the single particle level by correlated in situ dark field spectroscopy and scanning electron microscopy (SEM). Underpotential deposition avoids bulk silver formation on the ITO substrates. SEM proves that deposition occurs on all surfaces of the gold nanostars when polyvinylpyrrolidone (PVP) is stabilizing the nanostars or preferentially at the nanostar tips when the ligand is removed. The surface plasmon resonance blue-shifts by more than 100 nm following the formation of a 5 nm Ag film on PVP stabilized gold nanostars, moving the scattered color from the near-infrared to red or orange. The spectral shifts can be accurately modeled using finite element simulations. These results demonstrate that the morphology and composition of individual bimetallic nanocrystals can be engineered electrochemically.
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Affiliation(s)
- Mariana Chirea
- †CIQ-L4, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Sean S E Collins
- ‡School of Chemistry and Bio21 Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Xingzhan Wei
- ‡School of Chemistry and Bio21 Institute, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Paul Mulvaney
- ‡School of Chemistry and Bio21 Institute, University of Melbourne, Parkville, Victoria 3010, Australia
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42
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Byers CP, Hoener BS, Chang WS, Yorulmaz M, Link S, Landes CF. Single-particle spectroscopy reveals heterogeneity in electrochemical tuning of the localized surface plasmon. J Phys Chem B 2014; 118:14047-55. [PMID: 24971712 PMCID: PMC4266331 DOI: 10.1021/jp504454y] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A hyperspectral imaging method was developed that allowed the identification of heterogeneous plasmon response from 50 nm diameter gold colloidal particles on a conducting substrate in a transparent three-electrode spectroelectrochemical cell under non-Faradaic conditions. At cathodic potentials, we identified three distinct behaviors from different nanoparticles within the same sample: irreversible chemical reactions, reversible chemical reactions, and reversible charge density tuning. The irreversible reactions in particular would be difficult to discern in alternate methodologies. Additional heterogeneity was observed when single nanoparticles demonstrating reversible charge density tuning in the cathodic regime were measured dynamically in anodic potential ranges. Some nanoparticles that showed charge density tuning in the cathodic range also showed signs of an additional chemical tuning mechanism in the anodic range. The expected changes in nanoparticle free-electron density were modeled using a charge density-modified Drude dielectric function and Mie theory, a commonly used model in colloidal spectroelectrochemistry. Inconsistencies between experimental results and predictions of this common physical model were identified and highlighted. The broad range of responses on even a simple sample highlights the rich experimental and theoretical playgrounds that hyperspectral single-particle electrochemistry opens.
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Affiliation(s)
- Chad P Byers
- Department of Chemistry, Rice Quantum Institute, Laboratory for Nanophotonics and ‡Department of Electrical and Computer Engineering, Rice University , Houston, Texas 77005, United States
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43
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Jing C, Rawson FJ, Zhou H, Shi X, Li WH, Li DW, Long YT. New Insights into Electrocatalysis Based on Plasmon Resonance for the Real-Time Monitoring of Catalytic Events on Single Gold Nanorods. Anal Chem 2014; 86:5513-8. [DOI: 10.1021/ac500785u] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Chao Jing
- Key
Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237 P. R. China
| | - Frankie James Rawson
- Laboratory
of Biophysics and Surface Analysis, School of Pharmacy, University of Nottingham, University
park, Nottingham, NG7 2NR United Kingdom
| | - Hao Zhou
- Key
Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237 P. R. China
| | - Xin Shi
- Key
Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237 P. R. China
| | - Wen-Hui Li
- Key
Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237 P. R. China
| | - Da-Wei Li
- Key
Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237 P. R. China
| | - Yi-Tao Long
- Key
Laboratory for Advanced Materials and Department of Chemistry, East China University of Science and Technology, Shanghai, 200237 P. R. China
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44
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Batchelor-McAuley C, Martinez-Marrades A, Tschulik K, Patel AN, Combellas C, Kanoufi F, Tessier G, Compton RG. Simultaneous electrochemical and 3D optical imaging of silver nanoparticle oxidation. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.02.007] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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45
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Liu J, Hill CM, Pan S, Liu H. Interfacial charge transfer events of BODIPY molecules: single molecule spectroelectrochemistry and substrate effects. Phys Chem Chem Phys 2014; 16:23150-6. [DOI: 10.1039/c4cp02950j] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
BODIPY dye single molecules on nanostructured substrates are studied with a single molecule spectroelectrochemistry technique to reveal the heterogeneous charge transfer mechanism.
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Affiliation(s)
- Jia Liu
- Department of Chemistry
- The University of Alabama
- Tuscaloosa, 35487-0336 USA
| | - Caleb M. Hill
- Department of Chemistry
- The University of Alabama
- Tuscaloosa, 35487-0336 USA
| | - Shanlin Pan
- Department of Chemistry
- The University of Alabama
- Tuscaloosa, 35487-0336 USA
| | - Haiying Liu
- Department of Chemistry
- Michigan Technological University
- Houghton, 49931 USA
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