1
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Wang F, Zhang C, Wu F, He Z, Huang Y. Investigation of the Single-Particle Scale Structure-Activity Relationship Providing New Insights for the Development of High-Performance Batteries. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400683. [PMID: 38747891 DOI: 10.1002/adma.202400683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 05/11/2024] [Indexed: 05/21/2024]
Abstract
As electric vehicles, portable electronic devices, and tools have increasingly high requirements for battery energy density and power density, constantly improving battery performance is a research focus. Accurate measurement of the structure-activity relationship of active materials is key to advancing the research of high-performance batteries. However, conventional performance tests of active materials are based on the electrochemical measurement of porous composite electrodes containing active materials, polymer binders, and conductive carbon additives, which cannot establish an accurate structure-activity relationship with the physical characterization of microregions. In this review, in order to promote the accurate measurement and understanding of the structure-activity relationship of materials, the electrochemical measurement and physical characterization of energy storage materials at single-particle scale are reviewed. The potential problems and possible improvement schemes of the single particle electrochemical measurement and physical characterization are proposed. Their potential applications in single particle electrochemical simulation and machine learning are prospected. This review aims to promote the further application of single particle electrochemical measurement and physical characterization in energy storage materials, hoping to achieve 3D unified evaluation of physical characterization, electrochemical measurement, and theoretical simulation at the single particle scale to provide new inspiration for the development of high-performance batteries.
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Affiliation(s)
- Fei Wang
- Hebei Key Laboratory of Applied Chemistry, College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Chong Zhang
- Hebei Key Laboratory of Applied Chemistry, College of Environment and Chemical Engineering, Yanshan University, Qinhuangdao, 066004, China
| | - Fan Wu
- School of Chemistry and Chemical Engineering, North University of China, Taiyuan, 030051, China
| | - Zhichao He
- School of Materials Science and Engineering, North University of China, Taiyuan, 030051, China
| | - Yudong Huang
- School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
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2
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Babar M, Zhu Z, Kurchin R, Kaxiras E, Viswanathan V. Twisto-Electrochemical Activity Volcanoes in Trilayer Graphene. J Am Chem Soc 2024; 146:16105-16111. [PMID: 38829312 PMCID: PMC11177310 DOI: 10.1021/jacs.4c03464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 05/12/2024] [Accepted: 05/14/2024] [Indexed: 06/05/2024]
Abstract
In this work, we develop a twist-dependent electrochemical activity map, combining a low-energy continuum electronic structure model with modified Marcus-Hush-Chidsey kinetics in trilayer graphene. We identify a counterintuitive rate enhancement region spanning the magic angle curve and incommensurate twists in the system geometry. We find a broad activity peak with a ruthenium hexamine redox couple in regions corresponding to both magic angles and incommensurate angles, a result qualitatively distinct from the twisted bilayer case. Flat bands and incommensurability offer new avenues for reaction rate enhancements in electrochemical transformations.
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Affiliation(s)
- Mohammad Babar
- Department
of Mechanical Engineering, University of
Michigan, Ann Arbor, Michigan 48109, United States
| | - Ziyan Zhu
- Stanford
Institute of Materials and Energy Science, SLAC National Accelerator
Laboratory, Menlo
Park, California 94025, United States
| | - Rachel Kurchin
- Department
of Materials Science and Engineering, Carnegie
Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Efthimios Kaxiras
- Department
of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
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3
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Wright S, Brea C, Baxter JS, Saini S, Alsaç EP, Yoon SG, Boebinger MG, Hu G, McDowell MT. Epitaxial Metal Electrodeposition Controlled by Graphene Layer Thickness. ACS NANO 2024; 18:13866-13875. [PMID: 38751199 PMCID: PMC11140832 DOI: 10.1021/acsnano.4c02981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 05/02/2024] [Accepted: 05/09/2024] [Indexed: 05/29/2024]
Abstract
Control over material structure and morphology during electrodeposition is necessary for material synthesis and energy applications. One approach to guide crystallite formation is to take advantage of epitaxy on a current collector to facilitate crystallographic control. Single-layer graphene on metal foils can promote "remote epitaxy" during Cu and Zn electrodeposition, resulting in growth of metal that is crystallographically aligned to the substrate beneath graphene. However, the substrate-graphene-deposit interactions that allow for epitaxial electrodeposition are not well understood. Here, we investigate how different graphene layer thicknesses (monolayer, bilayer, trilayer, and graphite) influence the electrodeposition of Zn and Cu. Scanning transmission electron microscopy and electron backscatter diffraction are leveraged to understand metal morphology and structure, demonstrating that remote epitaxy occurs on mono- and bilayer graphene but not trilayer or thicker. Density functional theory (DFT) simulations reveal the spatial electronic interactions through thin graphene that promote remote epitaxy. This work advances our understanding of electrochemical remote epitaxy and provides strategies for improving control over electrodeposition.
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Affiliation(s)
- Salem
C. Wright
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Courtney Brea
- Department
of Chemistry and Biochemistry, Queens College
of the City University of New York, New York, New York 11367, United States
| | - Jefferey S. Baxter
- Center
for Nanophase Materials Sciences, Oak Ridge
National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Sonakshi Saini
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Elif Pınar Alsaç
- George
W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Sun Geun Yoon
- George
W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Matthew G. Boebinger
- Center
for Nanophase Materials Sciences, Oak Ridge
National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Guoxiang Hu
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
| | - Matthew T. McDowell
- School
of Materials Science and Engineering, Georgia
Institute of Technology, Atlanta, Georgia 30332, United States
- George
W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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4
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Hajishoreh NK, Jamalpoor Z, Rasouli R, Asl AN, Sheervalilou R, Akbarzadeh A. The recent development of carbon-based nanoparticles as a novel approach to skin tissue care and management - A review. Exp Cell Res 2023; 433:113821. [PMID: 37858837 DOI: 10.1016/j.yexcr.2023.113821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/21/2023]
Abstract
Since the skin is the first barrier of the body's defense against pathogens, delays in the healing process are affected by infections. Therefore, applying advanced substitute assistance improves the patient's quality of life. Carbon-based nanomaterials show better capabilities than conventional methods for managing skin wound infections. Due to their physicochemical properties such as small size, large surface area, great surface-to-volume ratio, and excellent ability to communicate with the cells and tissue, carbon-based nanoparticles have been considered in regenerative medicine. moreover, the carbon nano family offers attractive potential in wound healing via the improvement of angiogenesis and antibacterial compared to traditional approaches become one of the particular research interests in the field of skin tissue engineering. This review emphasizes the wound-healing process and the role of carbon-based nanoparticles in wound care management interaction with tissue engineering technology.
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Affiliation(s)
| | - Zahra Jamalpoor
- Trauma research center, Aja University of Medical Sciences, Tehran, Iran.
| | - Ramin Rasouli
- Health Research Center Chamran Hospital, Tehran, Iran.
| | - Amir Nezami Asl
- Health Research Center Chamran Hospital, Tehran, Iran; Trauma research center, Aja University of Medical Sciences, Tehran, Iran.
| | - Roghayeh Sheervalilou
- Pharmacology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
| | - Abolfazl Akbarzadeh
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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5
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Zheng Q, Zhuang J, Wang T, Liao X, Cheng L, Gu S. Investigating the effects of solution viscosity on the stability and success rate of SECCM imaging. Ultramicroscopy 2023; 254:113843. [PMID: 37683562 DOI: 10.1016/j.ultramic.2023.113843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 08/21/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
Due to the capability of simultaneously detecting the morphology and electrochemical information of samples and limiting the electrochemical reaction to a range approximately the size of the inner diameter of the pipette tip opening, scanning electrochemical cell microscopy (SECCM) enables higher precision local electrochemical measurement and surface material delivery and has been demonstrating unique advantages and broad application prospects. However, the meniscus droplet at the pipette tip of SECCM is equivalent to the opening radius of the pipette tip, which is usually tens of nanometers to hundreds of nanometers. The tiny meniscus droplet makes it susceptible to evaporation and crystallization, which increases the likelihood of the pipette colliding with the sample during the scanning process, resulting in the failure of scanning. In this paper, the influence of solution viscosity on the shape variation of the droplet at the tip during the movement of the pipette of SECCM was studied by finite element analysis. It is proved that the increase of solution viscosity is helpful in reducing the shape variation of the droplet at the tip during the movement of the pipette. Then scanning experiments were carried out using a flat Au substrate and Au substrates with rounded triangle and rounded rectangular convex structures as the samples. According to the experimental results, increasing solution viscosity improves scanning success rates and scanning quality and effectively lowers the MSE of the scanning results. The experimental results also show that SECCM can image at a higher speed when the solution's viscosity increases since the deformation of the droplet at the tip is less than with a typical solution.
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Affiliation(s)
- Qiangqiang Zheng
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Xi'an Jiaotong University, Xi'an 710049, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Jian Zhuang
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Xi'an Jiaotong University, Xi'an 710049, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China.
| | - Tianying Wang
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Xi'an Jiaotong University, Xi'an 710049, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Xiaobo Liao
- Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, PR China
| | - Lei Cheng
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Xi'an Jiaotong University, Xi'an 710049, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Shengbo Gu
- Key Laboratory of Education Ministry for Modern Design Rotor-Bearing System, Xi'an Jiaotong University, Xi'an 710049, PR China; School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, PR China
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6
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Patel KB, Luhar S, Srivastava DN. Plastic Chip Electrode: An Emerging Multipurpose Electrode Platform. Chem Asian J 2023; 18:e202300690. [PMID: 37706272 DOI: 10.1002/asia.202300690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 09/13/2023] [Accepted: 09/13/2023] [Indexed: 09/15/2023]
Abstract
The properties of electrodes play a crucial role in the processes occurring on them. Therefore, a variety of materials have been tried as electrodes. Carbon composite materials are among the most admired ones. Use of composites as electrode material dates back to the mid of the last century when polymer-carbon composites were tried as general-purpose electrode platforms and epoxy impregnated graphite paste/ solid electrodes were tried in polarography. Later the composite electrodes have seen several phases of development. Plastic Chip Electrode (PCE) is a class of polymer composite electrode developed by our group. This monographic review gives a bird's eye account of polymer composite electrodes and appurtenant work, followed by elaborating on various aspects and state-of-the-art plastic chip electrodes.
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Affiliation(s)
- Kinjal B Patel
- Analytical and Environmental Science Division and CIF, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar, 364002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 (Uttar, Pradesh, India
| | - Sunil Luhar
- Analytical and Environmental Science Division and CIF, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar, 364002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 (Uttar, Pradesh, India
| | - Divesh N Srivastava
- Analytical and Environmental Science Division and CIF, CSIR-Central Salt and Marine Chemicals Research Institute, Gijubhai Badheka Marg, Bhavnagar, 364002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 (Uttar, Pradesh, India
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7
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Lai Z, Liu M, Bi P, Huang F, Jin Y. Perspectives on Corrosion Studies Using Scanning Electrochemical Cell Microscopy: Challenges and Opportunities. Anal Chem 2023; 95:15833-15850. [PMID: 37844123 DOI: 10.1021/acs.analchem.3c02423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Scanning electrochemical cell microscopy (SECCM) allows for electrochemical imaging at the micro- or nanoscale by confining the electrochemical reaction cell in a small meniscus formed at the end of a micro- or nanopipette. This technique has gained popularity in electrochemical imaging due to its high-throughput nature. Although it shows considerable application potential in corrosion science, there are still formidable and exciting challenges to be faced, particularly relating to the high-throughput characterization and analysis of microelectrochemical big data. The objective of this perspective is to arouse attention and provide opinions on the challenges, recent progress, and future prospects of the SECCM technique to the electrochemical society, particularly from the viewpoint of corrosion scientists. Specifically, four main topics are systematically reviewed and discussed: (1) the development of SECCM; (2) the applications of SECCM for corrosion studies; (3) the challenges of SECCM in corrosion studies; and (4) the opportunities of SECCM for corrosion science.
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Affiliation(s)
- Zhaogui Lai
- National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 102206, P. R. China
| | - Min Liu
- New Materials Institute, University of Nottingham Ningbo China, Ningbo 315100, P. R. China
| | - Peng Bi
- Laboratory for Nuclear Materials, Paul Scherrer Institute, 5232 Villigen PSI, Switzerland
| | - Feifei Huang
- National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 102206, P. R. China
| | - Ying Jin
- National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 102206, P. R. China
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8
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Zhao H, Shrestha K, Hensley DK, Venton BJ. Carbon nanospikes have improved sensitivity and antifouling properties for adenosine, hydrogen peroxide, and histamine. Anal Bioanal Chem 2023; 415:6039-6050. [PMID: 37505236 PMCID: PMC10867945 DOI: 10.1007/s00216-023-04875-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023]
Abstract
Carbon nanospikes (CNSs) are a new nanomaterial that has enhanced surface roughness and surface oxide concentration, increasing the sensitivity for dopamine detection. However, CNS-modified electrodes (CNSMEs) have not been characterized for other neurochemicals, particularly those with higher oxidation potentials. The purpose of this study was to evaluate CNSMEs for the detection of adenosine, hydrogen peroxide (H2O2), and histamine. The sensitivity increased with CNSs, and signals at CNSMEs were about 3.3 times higher than CFMEs. Normalizing for surface area differences using background currents, CNSMEs show an increased signal of 4.8 times for adenosine, 1.5 times for H2O2, and 2 times for histamine. CNSMEs promoted the formation of secondary products for adenosine and histamine, which enables differentiation from other analytes with similar oxidation potentials. CNSs also selectively enhance the sensitivity for adenosine and histamine compared to H2O2. A scan rate test reveals that adenosine is more adsorption-controlled at CNS electrodes than CFMEs. CNSMEs are antifouling for histamine, with less fouling because the polymers formed after histamine electrooxidation do not adsorb due to an elevated number of edge planes. CNSMEs were useful for detecting each analyte applied in brain slices. Because of the hydrophilic surface compared to CFMEs, CNSMEs also have reduced biofouling when used in tissue. Therefore, CNSMEs are useful for tissue measurements of adenosine, hydrogen peroxide, and histamine with high selectivity and low fouling.
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Affiliation(s)
- He Zhao
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA
| | - Kailash Shrestha
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA
| | - Dale K Hensley
- Center for Nanophase Materials Sciences, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - B Jill Venton
- Department of Chemistry, University of Virginia, Charlottesville, VA, 22901, USA.
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9
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Nazmutdinov RR, Shermokhamedov SA, Zinkicheva TT, Ulstrup J, Xiao X. Understanding molecular and electrochemical charge transfer: theory and computations. Chem Soc Rev 2023; 52:6230-6253. [PMID: 37551138 DOI: 10.1039/d2cs00006g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Electron, proton, and proton-coupled electron transfer (PCET) are crucial elementary processes in chemistry, electrochemistry, and biology. We provide here a gentle overview of retrospective and currently developing theoretical formalisms of chemical, electrochemical and biological molecular charge transfer processes, with examples of how to bridge electron, proton, and PCET theory with experimental data. We offer first a theoretical minimum of molecular electron, proton, and PCET processes in homogeneous solution and at electrochemical interfaces. We illustrate next the use of the theory both for simple electron transfer processes, and for processes that involve molecular reorganization beyond the simplest harmonic approximation, with dissociative electron transfer and inclusion of all charge transfer parameters. A core example is the electrochemical reduction of the S2O82- anion. This is followed by discussion of core elements of proton and PCET processes and the electrochemical dihydrogen evolution reaction on different metal, semiconductor, and semimetal (say graphene) electrode surfaces. Other further focus is on stochastic chemical rate theory, and how this concept can rationalize highly non-traditional behaviour of charge transfer processes in mixed solvents. As a second major area we address ("long-range") chemical and electrochemical electron transfer through molecular frameworks using notions of superexchange and hopping. Single-molecule and single-entity electrochemistry are based on electrochemical scanning probe microscopies. (In operando) scanning tunnelling microscopy (STM) and atomic force microscopy (AFM) are particularly emphasized, with theoretical notions and new molecular electrochemical phenomena in the confined tunnelling gap. Single-molecule surface structure and electron transfer dynamics are illustrated by self-assembled thiol molecular monolayers and by more complex redox target molecules. This discussion also extends single-molecule electrochemistry to bioelectrochemistry of complex redox metalloproteins and metalloenzymes. Our third major area involves computational overviews of molecular and electronic structure of the electrochemical interface, with new computational challenges. These relate to solvent dynamics in bulk and confined space (say carbon nanostructures), electrocatalysis, metallic and semiconductor nanoparticles, d-band metals, carbon nanostructures, spin catalysis and "spintronics", and "hot" electrons. Further perspectives relate to metal-organic frameworks, chiral surfaces, and spintronics.
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Affiliation(s)
- Renat R Nazmutdinov
- Department of Inorganic Chemistry, Kazan National Research Technological University, K. Marx Str., 68, 420015 Kazan, Republic of Tatarstan, Russian Federation.
| | - Shokirbek A Shermokhamedov
- Department of Inorganic Chemistry, Kazan National Research Technological University, K. Marx Str., 68, 420015 Kazan, Republic of Tatarstan, Russian Federation.
| | - Tamara T Zinkicheva
- Department of Inorganic Chemistry, Kazan National Research Technological University, K. Marx Str., 68, 420015 Kazan, Republic of Tatarstan, Russian Federation.
| | - Jens Ulstrup
- Department of Inorganic Chemistry, Kazan National Research Technological University, K. Marx Str., 68, 420015 Kazan, Republic of Tatarstan, Russian Federation.
- Department of Chemistry, Technical University of Denmark, Building 207, Kemitorvet, 2800 Kongens Lyngby, Denmark.
| | - Xinxin Xiao
- Department of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark
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10
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Zhang K, Yu Y, Carr S, Babar M, Zhu Z, Kim BJ, Groschner C, Khaloo N, Taniguchi T, Watanabe K, Viswanathan V, Bediako DK. Anomalous Interfacial Electron-Transfer Kinetics in Twisted Trilayer Graphene Caused by Layer-Specific Localization. ACS CENTRAL SCIENCE 2023; 9:1119-1128. [PMID: 37396866 PMCID: PMC10311658 DOI: 10.1021/acscentsci.3c00326] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Indexed: 07/04/2023]
Abstract
Interfacial electron-transfer (ET) reactions underpin the interconversion of electrical and chemical energy. It is known that the electronic state of electrodes strongly influences ET rates because of differences in the electronic density of states (DOS) across metals, semimetals, and semiconductors. Here, by controlling interlayer twists in well-defined trilayer graphene moirés, we show that ET rates are strikingly dependent on electronic localization in each atomic layer and not the overall DOS. The large degree of tunability inherent to moiré electrodes leads to local ET kinetics that range over 3 orders of magnitude across different constructions of only three atomic layers, even exceeding rates at bulk metals. Our results demonstrate that beyond the ensemble DOS, electronic localization is critical in facilitating interfacial ET, with implications for understanding the origin of high interfacial reactivity typically exhibited by defects at electrode-electrolyte interfaces.
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Affiliation(s)
- Kaidi Zhang
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Yun Yu
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Stephen Carr
- Brown
Theoretical Physics Center, Brown University, Providence, Rhode Island 02912, United States
| | - Mohammad Babar
- Department
of Mechanical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
| | - Ziyan Zhu
- SLAC
National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Bryan Junsuh Kim
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Catherine Groschner
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Nikta Khaloo
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Takashi Taniguchi
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, 305-0044 Tsukuba, Japan
| | - Kenji Watanabe
- Research
Center for Functional Materials, National
Institute for Materials Science, 305-0044 Tsukuba, Japan
| | | | - D. Kwabena Bediako
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
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11
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Marina-Montes C, Abás E, Buil-García J, Anzano J. From multi to single-particle analysis: A seasonal spectroscopic study of airborne particulate matter in Zaragoza, Spain. Talanta 2023; 259:124550. [PMID: 37062086 DOI: 10.1016/j.talanta.2023.124550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/27/2023] [Accepted: 04/11/2023] [Indexed: 04/18/2023]
Abstract
It is distinguished that deficient outdoor air quality is responsible for substantial health and climate issues. The aim of our study was to investigate the air quality in the city of Zaragoza (Spain) by characterizing atmospheric particulate matter (PM10) during two seasons (winter and spring). PM10 samples were collected in 2022 in quartz filters through a low-volume sampler and chemically analysed by complementary analytical techniques: Inductively Coupled Plasma-Mass Spectrometry (ICP-MS), Laser Induced Breakdown Spectroscopy (LIBS), Raman Spectroscopy (RS) and Field Emission Scanning Electron Microscopy with Energy-Dispersive X-ray Spectroscopy (FESEM-EDS). Results have revealed, together with a temperature inversion phenomenon in winter, the presence of both natural (Al, Ca, Mg, Ti, Sr, Fe, etc.) and anthropogenic particles. The latter mainly formed by black carbon with an origin on fossil fuel combustion emissions. Additionally, chemical analyses of PM10 filters showed the presence of three types of microplastics suspended in the air of the city: polyethylene terephthalate (PET), polyamides (PA) and polystyrene (PS). The results obtained from this research are of special interest to take into account for future air quality policies, particularly those with the aim of reducing air pollution in cities.
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Affiliation(s)
- César Marina-Montes
- Laser Lab, Chemistry & Environment Group, Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza. Pedro Cerbuna 12, 50009, Zaragoza, Spain.
| | - Elisa Abás
- Laser Lab, Chemistry & Environment Group, Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza. Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Juan Buil-García
- Laser Lab, Chemistry & Environment Group, Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza. Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Jesús Anzano
- Laser Lab, Chemistry & Environment Group, Department of Analytical Chemistry, Faculty of Sciences, University of Zaragoza. Pedro Cerbuna 12, 50009, Zaragoza, Spain
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12
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Lambreva MD, Akhtar P, Sipka G, Margonelli A, Lambrev PH. Fluorescence quenching in thylakoid membranes induced by single-walled carbon nanotubes. Photochem Photobiol Sci 2023:10.1007/s43630-023-00403-7. [PMID: 36935477 DOI: 10.1007/s43630-023-00403-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 02/28/2023] [Indexed: 03/21/2023]
Abstract
The distinct photochemical and electrochemical properties of single-walled carbon nanotubes (SWCNTs) boosted the research interest in nanomaterial utilization in different in vivo and in vitro photosynthetic biohybrid setups. Aiming to unravel the yet not fully understood energetic interactions between the nanotubes and photosynthetic pigment-protein assemblies in an aqueous milieu, we studied SWCNT effects on the photochemical reactions of isolated thylakoid membranes (TMs), Photosystem II (PSII)-enriched membrane fragments and light-harvesting complexes (LHCII). The SWCNTs induced quenching of the steady-state chlorophyll fluorescence in the TM-biohybrid systems with a corresponding shortening of the average fluorescence lifetimes. The effect was not related to changes in the integrity and macroorganization of the photosynthetic membranes. Moreover, we found no evidence for direct excitation energy exchange between the SWCNTs and pigment-protein complexes, since neither the steady-state nor time-resolved fluorescence of LHCII-biohybrid systems differed from the corresponding controls. The attenuation of the fluorescence signal in the TM-biohybrid systems indicates possible leakage of photosynthetic electrons toward the nanotubes that most probably occurs at the level of the PSII acceptor site. Although it is too early to speculate on the nature of the involved electron donors and intermediate states, the observed energetic interaction could be exploited to increase the photoelectron capture efficiency of natural biohybrid systems for solar energy conversion.
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Affiliation(s)
- Maya D Lambreva
- Institute for Biological Systems, National Research Council, Via Salaria Km 29.300, 00015, Monterotondo Stazione, Rome, Italy.
| | - Parveen Akhtar
- Institute of Plant Biology, Biological Research Centre, Temesvári Krt. 62, 6726, Szeged, Hungary
| | - Gábor Sipka
- Institute of Plant Biology, Biological Research Centre, Temesvári Krt. 62, 6726, Szeged, Hungary
| | - Andrea Margonelli
- Institute of Crystallography, National Research Council, Via Salaria Km 29.300, 00015, Monterotondo Stazione, Rome, Italy
| | - Petar H Lambrev
- Institute of Plant Biology, Biological Research Centre, Temesvári Krt. 62, 6726, Szeged, Hungary.
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13
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Limani N, Batsa Tetteh E, Kim M, Quast T, Scorsone E, Jousselme B, Schuhmann W, Cornut R. Scrutinizing Intrinsic Oxygen Reduction Reaction Activity of a Fe−N−C Catalyst via Scanning Electrochemical Cell Microscopy. ChemElectroChem 2023. [DOI: 10.1002/celc.202201095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Ndrina Limani
- Universite Paris-Saclay CEA, CNRS, NIMBE, LICSEN Gif-sur-Yvette 91191 France
- Analytical Chemistry-Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 Bochum Germany
| | - Emmanuel Batsa Tetteh
- Analytical Chemistry-Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 Bochum Germany
| | - Moonjoo Kim
- Analytical Chemistry-Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 Bochum Germany
- Department of Chemistry Seoul National University Seoul 08826 Republic of Korea
| | - Thomas Quast
- Analytical Chemistry-Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 Bochum Germany
| | | | - Bruno Jousselme
- Universite Paris-Saclay CEA, CNRS, NIMBE, LICSEN Gif-sur-Yvette 91191 France
| | - Wolfgang Schuhmann
- Analytical Chemistry-Center for Electrochemical Sciences (CES) Faculty of Chemistry and Biochemistry Ruhr University Bochum Universitätsstraße 150 Bochum Germany
| | - Renaud Cornut
- Universite Paris-Saclay CEA, CNRS, NIMBE, LICSEN Gif-sur-Yvette 91191 France
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14
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Xia T, Yang Y, Song Q, Luo M, Xue M, Ostrikov KK, Zhao Y, Li F. In situ characterisation for nanoscale structure-performance studies in electrocatalysis. NANOSCALE HORIZONS 2023; 8:146-157. [PMID: 36512394 DOI: 10.1039/d2nh00447j] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Recently, electrocatalytic reactions involving oxygen, nitrogen, water, and carbon dioxide have been developed to substitute conventional chemical processes, with the aim of producing clean energy, fuels and chemicals. A deepened understanding of catalyst structures, active sites and reaction mechanisms plays a critical role in improving the performance of these reactions. To this end, in situ/operando characterisations can be used to visualise the dynamic evolution of nanoscale materials and reaction intermediates under electrolysis conditions, thus enhancing our understanding of heterogeneous electrocatalytic reactions. In this review, we summarise the state-of-the-art in situ characterisation techniques used in electrocatalysis. We categorise them into three sections based on different working principles: microscopy, spectroscopy, and other characterisation techniques. The capacities and limits of the in situ characterisation techniques are discussed in each section to highlight the present-day horizons and guide further advances in the field, primarily aiming at the users of these techniques. Finally, we look at challenges and possible strategies for further development of in situ techniques.
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Affiliation(s)
- Tianlai Xia
- School of Chemical and Biomolecular Engineering and The University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia.
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Yu Yang
- School of Chemical and Biomolecular Engineering and The University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia.
| | - Qiang Song
- School of Chemical and Biomolecular Engineering and The University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia.
| | - Mingchuan Luo
- School of Materials Science and Engineering, Peking University, Beijing, China
| | - Mianqi Xue
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China
| | - Kostya Ken Ostrikov
- School of Chemistry and Physics and Centre for Materials Science, Queensland University of Technology, Brisbane, QLD 4000, Australia.
| | - Yong Zhao
- School of Chemical and Biomolecular Engineering and The University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia.
- CSIRO Energy, Mayfield West, NSW 2304, Australia
| | - Fengwang Li
- School of Chemical and Biomolecular Engineering and The University of Sydney Nano Institute, The University of Sydney, NSW 2006, Australia.
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15
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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] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [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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16
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Yang X, Feng M, Zhang X, Huang Y. Co,N,S co-doped hollow carbon with efficient oxidase-like activity for the detection of Hg2+ and Fe3+ ions. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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17
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Shao Z, Wilson L, Chang Y, Venton BJ. MPCVD-Grown Nanodiamond Microelectrodes with Oxygen Plasma Activation for Neurochemical Applications. ACS Sens 2022; 7:3192-3200. [PMID: 36223478 PMCID: PMC9855027 DOI: 10.1021/acssensors.2c01803] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Nanodiamonds (NDs) are a carbon nanomaterial that has a diamond core with heteroatoms and defects at the surface. The large surface area, defect sites, and functional groups on NDs make them a promising material for electrochemical sensing. Previously, we dip-coated ND onto carbon-fiber microelectrodes (CFMEs) and found increases in sensitivity, but the coating was sparse. Here, we directly grew thin films of ND on niobium wires using microwave plasma chemical vapor deposition (MP-CVD) to provide full surface coverage. ND microelectrodes show a reliable performance in neurotransmitter detection with good antifouling properties. To improve sensitivity, we oxygen plasma etched ND films to activate the surface and intentionally add defects and oxygen surface functional groups. For fast-scan cyclic voltammetry detection of dopamine, oxygen plasma-etching increases the sensitivity from 21 nA/μM to 90 nA/μM after treatment. Fouling was tested by repeated injections of serotonin or tyramine, and both ND and plasma oxidized nanodiamond (NDO) microelectrodes maintain their currents better compared to CFMEs and therefore are more antifouling. A biofouling test in brain slices shows that ND microelectrodes barely have any current drop, while the more hydrophilic NDO microelectrodes decrease more, but still not as much as CFMEs. Overall, grown ND microelectrodes are promising in neurotransmitter detection with excellent fouling resistance, whereas oxygen plasma etching slightly lowers the fouling resistance but dramatically increases sensitivity.
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Affiliation(s)
- Zijun Shao
- Dept. of Chemistry, University of Virginia, Charlottesville, VA 22904-4319
| | - Leslie Wilson
- Center for Nanophase Material Science, Oak Ridge National Lab, Oak Ridge, TN, 37831, USA
| | - Yuanyu Chang
- Dept. of Chemistry, University of Virginia, Charlottesville, VA 22904-4319
| | - B. Jill Venton
- Dept. of Chemistry, University of Virginia, Charlottesville, VA 22904-4319
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18
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Gao H, Xu J, Liu C, Wang F, Sun H, Wang Q, Zhou M. Precise Polishing and Electrochemical Applications of Quartz Nanopipette-Based Carbon Nanoelectrodes. Anal Chem 2022; 94:14092-14098. [PMID: 36191159 DOI: 10.1021/acs.analchem.2c02296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Quartz nanopipette-based carbon nanoelectrodes (CNEs) have attracted extensive attention in nanoscale electrochemistry due to their simple and efficient fabrication, chemically inert materials, flexible size (down to a few nanometers), and ultrathin insulating encapsulation. However, these pristine CNEs usually have significantly irregular morphology on the surface, which greatly limits the applications where inlaid nanodisks are urgently needed. To address this critical issue, we have developed a new precise polishing strategy using paraffin coating protection (i.e., avoiding breakage of quartz materials) and real-time monitoring with a high impedance meter (i.e., indicating electrode exposure) to produce flat carbon nanodisk electrodes. The surface flatness of polished CNEs has been confirmed by a combination of scanning electron microscopy, fast-scan cyclic voltammetry, and scanning electrochemical microscopy. As compared to the expensive focused ion beam processing, this strategy is competitive in terms of the low cost and availability of the equipment and enables the preparation of polished CNEs with sufficiently small size. The flattened CNEs have been exemplified for grafting molecular catalysts to achieve the durable catalysis of reactive molecules or for immobilizing single-particle electrocatalysts to measure the intrinsic activity under sufficient mass-transfer rates.
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Affiliation(s)
- Han Gao
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jianan Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Chen Liu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Fei Wang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Haotian Sun
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China
| | - Qian Wang
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Innovation Academy for Green Manufacture, CAS, Beijing 100190, China
| | - Min Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.,University of Science and Technology of China, Hefei, Anhui 230026, China
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19
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Pavlov SV, Kislenko VA, Kislenko SA. Effect of a Graphene Vacancy on the Kinetics of Heterogeneous Electron Transfer. HIGH ENERGY CHEMISTRY 2022. [DOI: 10.1134/s0018143922050137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Inozemtseva AI, Sergeev AV, Napolskii KS, Kushnir SE, Belov V, Itkis DM, Usachov DY, Yashina LV. Graphene electrochemistry: ‘Adiabaticity’ of electron transfer. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.140901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Shao Z, Chang Y, Venton BJ. Carbon microelectrodes with customized shapes for neurotransmitter detection: A review. Anal Chim Acta 2022; 1223:340165. [PMID: 35998998 PMCID: PMC9867599 DOI: 10.1016/j.aca.2022.340165] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/08/2022] [Accepted: 07/09/2022] [Indexed: 01/26/2023]
Abstract
Carbon is a popular electrode material for neurotransmitter detection due to its good electrochemical properties, high biocompatibility, and inert chemistry. Traditional carbon electrodes, such as carbon fibers, have smooth surfaces and fixed shapes. However, newer studies customize the shape and nanostructure the surface to enhance electrochemistry for different applications. In this review, we show how changing the structure of carbon electrodes with methods such as chemical vapor deposition (CVD), wet-etching, direct laser writing (DLW), and 3D printing leads to different electrochemical properties. The customized shapes include nanotips, complex 3D structures, porous structures, arrays, and flexible sensors with patterns. Nanostructuring enhances sensitivity and selectivity, depending on the carbon nanomaterial used. Carbon nanoparticle modifications enhance electron transfer kinetics and prevent fouling for neurochemicals that are easily polymerized. Porous electrodes trap analyte momentarily on the scale of an electrochemistry experiment, leading to thin layer electrochemical behavior that enhances secondary peaks from chemical reactions. Similar thin layer cell behavior is observed at cavity carbon nanopipette electrodes. Nanotip electrodes facilitate implantation closer to the synapse with reduced tissue damage. Carbon electrode arrays are used to measure from multiple neurotransmitter release sites simultaneously. Custom-shaped carbon electrodes are enabling new applications in neuroscience, such as distinguishing different catecholamines by secondary peaks, detection of vesicular release in single cells, and multi-region measurements in vivo.
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Affiliation(s)
- Zijun Shao
- Dept. of Chemistry, University of Virginia, Charlottesville, VA, 22904-4319, USA
| | - Yuanyu Chang
- Dept. of Chemistry, University of Virginia, Charlottesville, VA, 22904-4319, USA
| | - B Jill Venton
- Dept. of Chemistry, University of Virginia, Charlottesville, VA, 22904-4319, USA.
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22
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Wang Y, Li M, Ren H. Voltammetric Mapping of Hydrogen Evolution Reaction on Pt Locally via Scanning Electrochemical Cell Microscopy. ACS MEASUREMENT SCIENCE AU 2022; 2:304-308. [PMID: 36785572 PMCID: PMC9836041 DOI: 10.1021/acsmeasuresciau.2c00012] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The advancement in nanoscale electrochemical tools has offered the opportunity to better understand heterogeneity at electrochemical interfaces. Scanning electrochemical cell microscopy (SECCM) has been increasingly used for revealing local kinetics and the distribution of active sites in electrocatalysis. Constant-contact scanning and hopping scanning are the two commonly used modes. The former is intrinsically faster, whereas the latter enables full voltammetry at individual locations. Herein, we revisit a less used mode that combines the advantages of hopping and constant-contact scan, resulting in a faster voltammetric mapping. In this mode, the nanodroplet cell in SECCM maintains contact with the surface during the scanning and makes intermittent pauses for local voltammetry. The elimination of frequent retraction and approach greatly increases the speed of mapping. In addition, iR correction can be readily applied to the voltammetry, resulting in more accurate measurements of the electrode kinetics. This scanning mode is demonstrated in the oxidation of a ferrocene derivative on HOPG and hydrogen evolution reaction (HER) on polycrystalline Pt, serving as model systems for outer-sphere and inner-sphere electron transfer reactions, respectively. While the kinetics of the inner-sphere reaction is consistent spatially, heterogeneity is observed for the kinetics of HER, which is correlated with the crystal orientation of Pt.
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23
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Singh R, Kumar S. Cancer Targeting and Diagnosis: Recent Trends with Carbon Nanotubes. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2283. [PMID: 35808119 PMCID: PMC9268713 DOI: 10.3390/nano12132283] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 02/06/2023]
Abstract
Cancer belongs to a category of disorders characterized by uncontrolled cell development with the potential to invade other bodily organs, resulting in an estimated 10 million deaths globally in 2020. With advancements in nanotechnology-based systems, biomedical applications of nanomaterials are attracting increasing interest as prospective vehicles for targeted cancer therapy and enhancing treatment results. In this context, carbon nanotubes (CNTs) have recently garnered a great deal of interest in the field of cancer diagnosis and treatment due to various factors such as biocompatibility, thermodynamic properties, and varied functionalization. In the present review, we will discuss recent advancements regarding CNT contributions to cancer diagnosis and therapy. Various sensing strategies like electrochemical, colorimetric, plasmonic, and immunosensing are discussed in detail. In the next section, therapy techniques like photothermal therapy, photodynamic therapy, drug targeting, gene therapy, and immunotherapy are also explained in-depth. The toxicological aspect of CNTs for biomedical application will also be discussed in order to ensure the safe real-life and clinical use of CNTs.
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Affiliation(s)
- Ragini Singh
- College of Agronomy, Liaocheng University, Liaocheng 252059, China;
| | - Santosh Kumar
- Shandong Key Laboratory of Optical Communication Science and Technology, School of Physics Science and Information Technology, Liaocheng University, Liaocheng 252059, China
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24
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Yang Y, Dong H, Yin H, Zhang Y, Zhou Y, Xu M, Wang X. Fabrication of nonenzymatic electrochemical interface for ratiometric and simultaneous detection of hydrogen peroxide, dopamine, and ascorbic acid. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Caniglia G, Tezcan G, Meloni GN, Unwin PR, Kranz C. Probing and Visualizing Interfacial Charge at Surfaces in Aqueous Solution. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2022; 15:247-267. [PMID: 35259914 DOI: 10.1146/annurev-anchem-121521-122615] [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
Surface charge density and distribution play an important role in almost all interfacial processes, influencing, for example, adsorption, colloidal stability, functional material activity, electrochemical processes, corrosion, nanoparticle toxicity, and cellular processes such as signaling, absorption, and adhesion. Understanding the heterogeneity in, and distribution of, surface and interfacial charge is key to elucidating the mechanisms underlying reactivity, the stability of materials, and biophysical processes. Atomic force microscopy (AFM) and scanning ion conductance microscopy (SICM) are highly suitable for probing the material/electrolyte interface at the nanoscale through recent advances in probe design, significant instrumental (hardware and software) developments, and the evolution of multifunctional imaging protocols. Here, we assess the capability of AFM and SICM for surface charge mapping, covering the basic underpinning principles alongside experimental considerations. We illustrate and compare the use of AFM and SICM for visualizing surface and interfacial charge with examples from materials science, geochemistry, and the life sciences.
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Affiliation(s)
- Giada Caniglia
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany;
| | - Gözde Tezcan
- Department of Chemistry, University of Warwick, Coventry, United Kingdom;
| | - Gabriel N Meloni
- Department of Chemistry, University of Warwick, Coventry, United Kingdom;
| | - Patrick R Unwin
- Department of Chemistry, University of Warwick, Coventry, United Kingdom;
| | - Christine Kranz
- Institute of Analytical and Bioanalytical Chemistry, Ulm University, Ulm, Germany;
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26
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Arshad F, Nabi F, Iqbal S, Khan RH. Applications of graphene-based electrochemical and optical biosensors in early detection of cancer biomarkers. Colloids Surf B Biointerfaces 2022; 212:112356. [PMID: 35123193 DOI: 10.1016/j.colsurfb.2022.112356] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/04/2022] [Accepted: 01/19/2022] [Indexed: 12/26/2022]
Abstract
Graphene is a one-atom-thick carbon compound, which holds promises for detecting cancer biomarkers along with its derivatives. The atom-wide graphene layer is ideal for cancer biomarker detection due to its unique physicochemical properties like increased electrical and thermal conductivity, optical transparency, and enhanced chemical and mechanical strength. The scientific aim of any biosensor is to create a smaller and portable point of care device for easy and early cancer detection; graphene is able to live up to that. Apart from tumour detection, graphene-based biosensors can diagnose many diseases, their biomarkers, and pathogens. Many existing remarkable pieces of research have proven the candidacy of nanoparticles in most cancer biomarkers detection. This article discusses the effectiveness of graphene-based biosensors in different cancer biomarker detection. This article provides a detailed review of graphene and its derivatives that can be used to detect cancer biomarkers with high specificity, sensitivity, and selectivity. We have highlighted the synthesis procedures of graphene and its products and also discussed their significant properties. Furthermore, we provided a detailed overview of the recent studies on cancer biomarker detection using graphene-based biosensors. The different paths to create and modify graphene surfaces for sensory applications have also been highlighted in each section. Finally, we concluded the review by discussing the existing challenges of these biosensors and also highlighted the steps that can be taken to overcome them.
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Affiliation(s)
- Fareeha Arshad
- Department of Biochemistry, Aligarh Muslim University, Aligarh 202001, India
| | - Faisal Nabi
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202001, India
| | - Sana Iqbal
- Department of Electrical Engineering, Aligarh Muslim University, Aligarh 202001, India
| | - Rizwan Hasan Khan
- Interdisciplinary Biotechnology Unit, Aligarh Muslim University, Aligarh 202001, India.
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27
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Wahab O, Kang M, Meloni GN, Daviddi E, Unwin PR. Nanoscale Visualization of Electrochemical Activity at Indium Tin Oxide Electrodes. Anal Chem 2022; 94:4729-4736. [PMID: 35255211 PMCID: PMC9007413 DOI: 10.1021/acs.analchem.1c05168] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/11/2022] [Indexed: 01/08/2023]
Abstract
Indium tin oxide (ITO) is a popular electrode choice, with diverse applications in (photo)electrocatalysis, organic photovoltaics, spectroelectrochemistry and sensing, and as a support for cell biology studies. Although ITO surfaces exhibit heterogeneous local electrical conductivity, little is known as to how this translates to electrochemistry at the same scale. This work investigates nanoscale electrochemistry at ITO electrodes using high-resolution scanning electrochemical cell microscopy (SECCM). The nominally fast outer-sphere one-electron oxidation of 1,1'-ferrocenedimethanol (FcDM) is used as an electron transfer (ET) kinetic marker to reveal the charge transfer properties of the ITO/electrolyte interface. SECCM measures spatially resolved linear sweep voltammetry at an array of points across the ITO surface, with the topography measured synchronously. Presentation of SECCM data as current maps as a function of potential reveals that, while the entire surface of ITO is electroactive, the ET activity is highly spatially heterogeneous. Kinetic parameters (standard rate constant, k0, and transfer coefficient, α) for FcDM0/+ are assigned from 7200 measurements at sites across the ITO surface using finite element method modeling. Differences of 3 orders of magnitude in k0 are revealed, and the average k0 is about 20 times larger than that measured at the macroscale. This is attributed to macroscale ET being largely limited by lateral conductivity of the ITO electrode under electrochemical operation, rather than ET kinetics at the ITO/electrolyte interface, as measured by SECCM. This study further demonstrates the considerable power of SECCM for direct nanoscale characterization of electrochemical processes at complex electrode surfaces.
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Affiliation(s)
- Oluwasegun
J. Wahab
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Minkyung Kang
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
- Institute
for Frontier Materials Deakin University, Burwood, Victoria 3125, Australia
| | - Gabriel N. Meloni
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Enrico Daviddi
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Patrick R. Unwin
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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28
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Liu G, Hao L, Li H, Zhang K, Yu X, Li D, Zhu X, Hao D, Ma Y, Ma L. Topography Mapping with Scanning Electrochemical Cell Microscopy. Anal Chem 2022; 94:5248-5254. [PMID: 35312291 DOI: 10.1021/acs.analchem.1c04692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
High-resolution scanning electrochemical cell microscopy (SECCM), synchronously visualizing the topography and electrochemical activity, could be used to directly correlate the structure and activity of materials nanoscopically. However, its topographical measurement is largely restricted by the size and stability of the meniscus droplet formed at the end of the nanopipette. In this paper, we report a scheme that could reliably gain several tens nanometer resolution (≥65 nm) of SECCM using homemade ∼50 nm inner diameter probes. Furthermore, the topography and hydrogen evolution reaction (HER) activity of ∼45 nm self-assembled Au nanoparticles monolayer were simultaneously recorded successfully. This scheme could make mapping of both topologic and chemical properties of samples in the nanometer regime with SECCM routinely, which potentially can largely expand the field of SECCM applications.
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Affiliation(s)
- Gen Liu
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Luzhen Hao
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Hao Li
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Kaimin Zhang
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Xue Yu
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Dong Li
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Xiaodong Zhu
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Danni Hao
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
| | - Yanqing Ma
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China.,State Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, P. R. China
| | - Lei Ma
- Tianjin International Center for Nanoparticles and Nanosystems, Tianjin University, Tianjin 300072, P. R. China
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29
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Wehrhold M, Neubert TJ, Grosser T, Vondráček M, Honolka J, Balasubramanian K. A highly durable graphene monolayer electrode under long-term hydrogen evolution cycling. Chem Commun (Camb) 2022; 58:3823-3826. [PMID: 35234242 DOI: 10.1039/d2cc00220e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Achieving long term stability of single graphene sheets towards repeated electrochemical hydrogen evolution reaction (HER) cycling has been challenging. Here, we show through appropriate electrode preparation that it is possible to obtain highly durable isolated graphene electrodes, which can survive several hundreds of HER cycles with virtually no damage to the sp2-carbon framework and persistently good electron transfer characteristics.
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Affiliation(s)
- Michel Wehrhold
- School of Analytical Sciences Adlershof (SALSA), IRIS Adlershof & Department of Chemistry, Humboldt-Universität zu Berlin, Germany.
| | - Tilmann J Neubert
- School of Analytical Sciences Adlershof (SALSA), IRIS Adlershof & Department of Chemistry, Humboldt-Universität zu Berlin, Germany.
| | - Tobias Grosser
- School of Analytical Sciences Adlershof (SALSA), IRIS Adlershof & Department of Chemistry, Humboldt-Universität zu Berlin, Germany.
| | - Martin Vondráček
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, Prague 18221, Czech Republic
| | - Jan Honolka
- Institute of Physics, Academy of Sciences of the Czech Republic, Na Slovance 2, Prague 18221, Czech Republic
| | - Kannan Balasubramanian
- School of Analytical Sciences Adlershof (SALSA), IRIS Adlershof & Department of Chemistry, Humboldt-Universität zu Berlin, Germany.
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30
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Let’s twist electrochem. Nat Chem 2022; 14:248-250. [DOI: 10.1038/s41557-022-00900-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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31
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Tunable angle-dependent electrochemistry at twisted bilayer graphene with moiré flat bands. Nat Chem 2022; 14:267-273. [PMID: 35177786 DOI: 10.1038/s41557-021-00865-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 11/22/2021] [Indexed: 11/09/2022]
Abstract
Tailoring electron transfer dynamics across solid-liquid interfaces is fundamental to the interconversion of electrical and chemical energy. Stacking atomically thin layers with a small azimuthal misorientation to produce moiré superlattices enables the controlled engineering of electronic band structures and the formation of extremely flat electronic bands. Here, we report a strong twist-angle dependence of heterogeneous charge transfer kinetics at twisted bilayer graphene electrodes with the greatest enhancement observed near the 'magic angle' (~1.1°). This effect is driven by the angle-dependent tuning of moiré-derived flat bands that modulate electron transfer processes with the solution-phase redox couple. Combined experimental and computational analysis reveals that the variation in electrochemical activity with moiré angle is controlled by a structural relaxation of the moiré superlattice at twist angles of <2°, and 'topological defect' AA stacking regions, where flat bands are localized, produce a large anomalous local electrochemical enhancement that cannot be accounted for by the elevated local density of states alone.
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32
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Jia Q, Yang C, Venton BJ, DuBay KH. Atomistic Simulations of Dopamine Diffusion Dynamics on a Pristine Graphene Surface. Chemphyschem 2022; 23:e202100783. [PMID: 34939307 PMCID: PMC9933135 DOI: 10.1002/cphc.202100783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 12/04/2021] [Indexed: 11/08/2022]
Abstract
Carbon microelectrodes enable in vivo detection of neurotransmitters, and new electrodes aim to optimize the carbon surface. However, atomistic detail on the diffusion and orientation of neurotransmitters near these surfaces is lacking. Here, we employ molecular dynamics simulations to investigate the surface diffusion of dopamine (DA), its oxidation product dopamine-o-quinone (DOQ), and their protonated forms on the pristine basal plane of flat graphene. We find that all DA species rapidly adsorb to the surface and remain adsorbed, even without a holding potential or graphene surface defects. We also find that the diffusivities of the adsorbed and the fully solvated DA are similar and that the protonated species diffuse more slowly on the surface than their corresponding neutral forms, while the oxidized species diffuse more rapidly. Structurally, we find that the underlying graphene lattice has little influence over the molecular adsorbate's lateral position, and the vertical placement of the amine group on dopamine is highly dependent upon its charge. Finally, we find that solvation has a large effect on surface diffusivities. These first results from molecular dynamics simulations of dopamine at the aqueous-graphene interface show that dopamine diffuses rapidly on the surface, even without an applied potential, and provide a basis for future simulations of neurotransmitter structure and dynamics on advanced carbon materials electrodes.
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33
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Jarosova R, Irikura K, Rocha‐Filho RC, Swain GM. Detection of Pyocyanin with a Boron‐doped Diamond Electrode Using Flow Injection Analysis with Amperometric Detection and Square Wave Voltammetry. ELECTROANAL 2022. [DOI: 10.1002/elan.202100562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Romana Jarosova
- Department of Analytical Chemistry UNESCO Laboratory of Environmental Electrochemistry Charles University 12843 Prague 2 Czech Republic
- Department of Chemistry Michigan State University 48824-1322 East Lansing MI United States
| | - Kallyni Irikura
- Department of Chemistry Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos SP Brazil
- Department of Chemistry Michigan State University 48824-1322 East Lansing MI United States
| | - Romeu C. Rocha‐Filho
- Department of Chemistry Universidade Federal de São Carlos (UFSCar) C.P. 676 13560-970 São Carlos SP Brazil
| | - Greg M. Swain
- Department of Chemistry Michigan State University 48824-1322 East Lansing MI United States
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34
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Zhang K, Zhuo Z, Fan G, Wang Z, Chen S, Xu L, Wen Y, Wang P. Nano-ZnS decorated hierarchically porous carbon electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous detection of dopamine, uric acid, guanine, and adenine. NANOSCALE 2021; 13:20078-20090. [PMID: 34846060 DOI: 10.1039/d1nr06017a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The simultaneous detection of multiple biological small molecules is critical for human health evaluation and disease prevention. In this study, a nano-ZnS decorated hierarchically porous carbon (ZSHPC) electrocatalyst with multiple enzyme-like activities as a nanozyme sensing platform for simultaneous derivative voltametric detection of four important biological small molecules, dopamine (DA), uric acid (UA), guanine (G), and adenine (A), is successfully synthesized via an in situ hydrothermal reaction using leaves of Cinnamomum camphora (L.) after the extraction of essential oil as a carbon source, ZnCl2 as both zinc source and an activator, sulfuric acid as a sulfur source, and silica gel as a hard template. Activator together with the introduction of silica gel is beneficial for tuning pore structure. The in situ synthesized ZnS nanoparticles and sulfur doping improve the conductivity and cycling stability of the material. The ZSHPC electrode with multiple enzyme-like activities and oxidase-like characteristics was employed for the simultaneous detection of multiple target molecules in linear ranges of 0.3-500 μM with detection limits of 0.12 μM for DA, 0.26 μM for UA, 0.07 μM for G, and 0.075 μM for A. A derivative technique was selected for enhancing the peak resolution of the partial overlapped voltammograms and eliminating human error. Both the coefficient of determination and residual prediction deviation were used to evaluate this technique.
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Affiliation(s)
- Kai Zhang
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Nanchang 330045, P.R. China.
| | - Zhonghui Zhuo
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Nanchang 330045, P.R. China.
| | - Guorong Fan
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Nanchang 330045, P.R. China.
| | - Zongde Wang
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Nanchang 330045, P.R. China.
| | - Shangxing Chen
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Nanchang 330045, P.R. China.
| | - Lulu Xu
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China.
| | - Yangping Wen
- Key Laboratory of Chemical Utilization of Plant Resources of Nanchang, Institute of Functional Materials and Agricultural Applied Chemistry, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China.
| | - Peng Wang
- College of Forestry, Jiangxi Agricultural University, East China Woody Fragrance and Flavor Engineering Research Center of National Forestry and Grassland Administration, Nanchang 330045, P.R. China.
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35
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Li W, He W, Chen X, Chen T, Wu Y, Li C, Zhang X, Yu L, Yang F. Tailoring the Electrocatalytic Properties of sp
2
‐Hybridized Carbon Nanomaterials with Molecule Doping. ChemCatChem 2021. [DOI: 10.1002/cctc.202100684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Wenhao Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Wenya He
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Xijie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Tianxiao Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Yun Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Chuan Li
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Xin Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Le Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
| | - Fengchun Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry (Ministry of Education) College of Chemistry and Material Science Northwest University Xi'an 710069 P. R. China
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36
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Liu DQ, Kang M, Perry D, Chen CH, West G, Xia X, Chaudhuri S, Laker ZPL, Wilson NR, Meloni GN, Melander MM, Maurer RJ, Unwin PR. Adiabatic versus non-adiabatic electron transfer at 2D electrode materials. Nat Commun 2021; 12:7110. [PMID: 34876571 PMCID: PMC8651748 DOI: 10.1038/s41467-021-27339-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 11/15/2021] [Indexed: 01/04/2023] Open
Abstract
2D electrode materials are often deployed on conductive supports for electrochemistry and there is a great need to understand fundamental electrochemical processes in this electrode configuration. Here, an integrated experimental-theoretical approach is used to resolve the key electronic interactions in outer-sphere electron transfer (OS-ET), a cornerstone elementary electrochemical reaction, at graphene as-grown on a copper electrode. Using scanning electrochemical cell microscopy, and co-located structural microscopy, the classical hexaamineruthenium (III/II) couple shows the ET kinetics trend: monolayer > bilayer > multilayer graphene. This trend is rationalized quantitatively through the development of rate theory, using the Schmickler-Newns-Anderson model Hamiltonian for ET, with the explicit incorporation of electrostatic interactions in the double layer, and parameterized using constant potential density functional theory calculations. The ET mechanism is predominantly adiabatic; the addition of subsequent graphene layers increases the contact potential, producing an increase in the effective barrier to ET at the electrode/electrolyte interface.
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Affiliation(s)
- Dan-Qing Liu
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK ,grid.13402.340000 0004 1759 700XSchool of Materials Science and Engineering, Zhejiang University, Hangzhou, 310007 China
| | - Minkyung Kang
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK ,grid.1021.20000 0001 0526 7079Institute for Frontier Materials, Deakin University, Geelong, VIC 3217 Australia
| | - David Perry
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK
| | - Chang-Hui Chen
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK
| | - Geoff West
- grid.7372.10000 0000 8809 1613Warwick Manufacturing Group, University of Warwick, Coventry, CV4 7AL UK
| | - Xue Xia
- grid.7372.10000 0000 8809 1613Department of Physics, University of Warwick, Coventry, CV4 7AL UK
| | - Shayantan Chaudhuri
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK ,grid.7372.10000 0000 8809 1613Centre for Doctoral Training in Diamond Science and Technology, University of Warwick, Coventry, CV4 7AL UK
| | - Zachary P. L. Laker
- grid.7372.10000 0000 8809 1613Department of Physics, University of Warwick, Coventry, CV4 7AL UK
| | - Neil R. Wilson
- grid.7372.10000 0000 8809 1613Department of Physics, University of Warwick, Coventry, CV4 7AL UK
| | - Gabriel N. Meloni
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK
| | - Marko M. Melander
- grid.9681.60000 0001 1013 7965Department of Chemistry, Nanoscience Center, University of Jyväskylä, P.O. Box 35, (YN) FI-40014 Jyväskylä, Finland
| | - Reinhard J. Maurer
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK
| | - Patrick R. Unwin
- grid.7372.10000 0000 8809 1613Department of Chemistry, University of Warwick, Coventry, CV4 7AL UK
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Engelbrekt C, Nazmutdinov RR, Shermukhamedov S, Ulstrup J, Zinkicheva TT, Xiao X. Complex single‐molecule and molecular scale entities in electrochemical environments: Mechanisms and challenges. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Christian Engelbrekt
- Department of Chemistry Technical University of Denmark Building 207, DK0‐2800 Kgs. Lyngby Denmark
| | - Renat R. Nazmutdinov
- Department of Inorganic Chemistry Kazan National Research Technological University Karl Marx Str. 68 Kazan 420015 Russian Federation
| | - Shokirbek Shermukhamedov
- Department of Inorganic Chemistry Kazan National Research Technological University Karl Marx Str. 68 Kazan 420015 Russian Federation
| | - Jens Ulstrup
- Department of Chemistry Technical University of Denmark Building 207, DK0‐2800 Kgs. Lyngby Denmark
| | - Tamara T. Zinkicheva
- Department of Inorganic Chemistry Kazan National Research Technological University Karl Marx Str. 68 Kazan 420015 Russian Federation
| | - Xinxin Xiao
- Department of Chemistry Technical University of Denmark Building 207, DK0‐2800 Kgs. Lyngby Denmark
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38
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Recent advances in carbon nanotubes-based biocatalysts and their applications. Adv Colloid Interface Sci 2021; 297:102542. [PMID: 34655931 DOI: 10.1016/j.cis.2021.102542] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 12/23/2022]
Abstract
Enzymes have been incorporated into a wide variety of fields and industries as they catalyze many biochemical and chemical reactions. The immobilization of enzymes on carbon nanotubes (CNTs) for generating nano biocatalysts with high stability and reusability is gaining great attention among researchers. Functionalized CNTs act as excellent support for effective enzyme immobilization. Depending on the application, the enzymes can be tailored using the various surface functionalization techniques on the CNTs to extricate the desirable characteristics. Aiming at the preparation of efficient, stable, and recyclable nanobiocatalysts, this review provides an overview of the methods developed to immobilize the various enzymes. Various applications of carbon nanotube-based biocatalysts in water purification, bioremediation, biosensors, and biofuel cells have been comprehensively reviewed.
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Thirumal V, Dhamodharan K, Yuvakkumar R, Ravi G, Saravanakumar B, Thambidurai M, Dang C, Velauthapillai D. Cleaner production of tamarind fruit shell into bio-mass derived porous 3D-activated carbon nanosheets by CVD technique for supercapacitor applications. CHEMOSPHERE 2021; 282:131033. [PMID: 34102489 DOI: 10.1016/j.chemosphere.2021.131033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 05/21/2021] [Accepted: 05/25/2021] [Indexed: 06/12/2023]
Abstract
This paper reported the successful preparation and characterization of bio-activated carbon nanosheets (ACNSs) synthesized from tamarind (tamarind indicia) fruits shells (TFSs) by employing Chemical Vapor Deposition (CVD) tubular furnace. The preparation of pure ACNSs and also potassium hydroxide (KOH) activated carbon nanosheets (K-ACNSs) were made through a pyrolysis process with Argon (Ar) gas as an inert gas at 800 °C for 2h 30min, followed by further purifications of K-ACNSs. The scanning electron microscope (SEM) images of ACNSs and K-ACNSs explored with and without pores respectively. The SEM micrographs also explored 3D-porous microstructure sheets with thickness around 18-65 nm. Raman spectroscopy explored crystallinity, SP2 order and graphitization at 1577-1589 cm-1. The major functional groups were also observed. The photoluminescence (PL) was analyzed for K-ACNSs materials and revealed carbon emission broad peak value at 521.3 nm. As prepared ACNSs and K-ACNSs active materials was applied for three-electrode materials of energy storage supercapacitor analysis of cyclic voltammeter for -0.4 - 0.15 V at scan rates of 10-100 mV/s. The electrochemical impedance spectroscopy (EIS) was performed with low Rct values of K-ACNSs as 0.65Ω when compared to pure ACNSs as 5.03Ω. Mainly, the galvanostatic charge-discharge test carried out in ACNSs and KCNSs materials was corresponded to 77 and 245.03 F/g respectively, with respect to 1 A/g current density. Finally, we promise that this reported novel tamarind bio-waste into conductive porous carbon nanosheets could develop future energy storage applications of biomass-derived carbons.
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Affiliation(s)
- V Thirumal
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - K Dhamodharan
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - R Yuvakkumar
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - G Ravi
- Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.
| | - B Saravanakumar
- SARP, Central Institute of Plastics Engineering & Technology (CIPET), Bhubaneswar, 751024, Odisha, India
| | - M Thambidurai
- COEB, School of Electrical and Electronic Engineering, The Photonics Institute (TPI), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Cuong Dang
- COEB, School of Electrical and Electronic Engineering, The Photonics Institute (TPI), Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
| | - Dhayalan Velauthapillai
- Faculty of Engineering and Science, Western Norway University of Applied Sciences, Bergen, 5063, Norway
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40
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Carbon-Based Nanocomposite Smart Sensors for the Rapid Detection of Mycotoxins. NANOMATERIALS 2021; 11:nano11112851. [PMID: 34835617 PMCID: PMC8621137 DOI: 10.3390/nano11112851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2021] [Revised: 10/01/2021] [Accepted: 10/11/2021] [Indexed: 01/07/2023]
Abstract
Carbon-based nanomaterials have become the subject of intensive interest because their intriguing physical and chemical properties are different from those of their bulk counterparts, leading to novel applications in smart sensors. Mycotoxins are secondary metabolites with different structures and toxic effects produced by fungi. Mycotoxins have low molecular weights and highly diverse molecular structures, which can induce a spectrum of biological effects in humans and animals even at low concentrations. A tremendous amount of biosensor platforms based on various carbon nanocomposites have been developed for the determination of mycotoxins. Therefore, the contents of this review are based on a balanced combination of our own studies and selected research studies performed by academic groups worldwide. We first address the vital preparation methods of biorecognition unit (antibodies, aptamers, molecularly imprinted polymers)-functionalized carbon-based nanomaterials for sensing mycotoxins. Then, we summarize various types of smart sensors for the detection of mycotoxins. We expect future research on smart sensors to show a significant impact on the detection of mycotoxins in food products.
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41
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Kislenko SA, Pavlov SV, Nazmutdinov RR, Kislenko VA, Chekushkin PM. Effect of a Au underlayer on outer-sphere electron transfer across a Au/graphene/electrolyte interface. Phys Chem Chem Phys 2021; 23:22984-22991. [PMID: 34611675 DOI: 10.1039/d1cp03051e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The effect of a gold underlayer on the outer-sphere non-adiabatic electron transfer on a graphene surface is investigated theoretically using both periodic and cluster DFT calculations. We propose a model that describes the alignment of energy levels and charge redistribution at the metal/graphene/redox electrolyte interface. Model calculations were performed for the [Fe(CN)6]3-/4- and [Ru(NH3)6]3+/2+ redox couples. It is shown that the gold support increases the rate constant of electron transfer. Gold electronic states hybridize with graphene wave functions, which provides an effective overlap with reactant orbitals outside the graphene layer and favors an increasing reaction rate. Although the Fermi level shift relative to the Dirac point in graphene depends significantly on the redox couple, this weakly affects the electron transfer kinetics at the Au(111)/graphene/electrolyte interface due to a small contribution of graphene states to the rate constant as compared to gold ones.
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Affiliation(s)
- Sergey A Kislenko
- Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13/2, Moscow, 125412, Russian Federation.
| | - Sergey V Pavlov
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, Moscow, 143026, Russian Federation.,Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13/2, Moscow, 125412, Russian Federation.
| | - Renat R Nazmutdinov
- Kazan National Research Technological University, R. Marx Str. 68, 420015 Kazan, Republic of Tatarstan, Russian Federation
| | - Vitaliy A Kislenko
- Center for Computational and Data-Intensive Science and Engineering, Skolkovo Institute of Science and Technology, Nobel Str. 3, Moscow, 143026, Russian Federation.,Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13/2, Moscow, 125412, Russian Federation.
| | - Petr M Chekushkin
- Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13/2, Moscow, 125412, Russian Federation.
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42
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Hou S, Kluge RM, Haid RW, Gubanova EL, Watzele SA, Bandarenka AS, Garlyyev B. A Review on Experimental Identification of Active Sites in Model Bifunctional Electrocatalytic Systems for Oxygen Reduction and Evolution Reactions. ChemElectroChem 2021. [DOI: 10.1002/celc.202100584] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shujin Hou
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
- Catalysis Research Center TUM Ernst-Otto-Fischer-Str. 1 85748 Garching bei München Germany
| | - Regina M. Kluge
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
| | - Richard W. Haid
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
| | - Elena L. Gubanova
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
| | - Sebastian A. Watzele
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
| | - Aliaksandr S. Bandarenka
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
- Catalysis Research Center TUM Ernst-Otto-Fischer-Str. 1 85748 Garching bei München Germany
| | - Batyr Garlyyev
- Physics of Energy Conversion and Storage Physik-Department Technische Universität München James-Franck-Str. 1 85748 Garching bei München Germany
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43
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Li D, Luo Y, Onidas D, He L, Jin M, Gazeau F, Pinson J, Mangeney C. Surface functionalization of nanomaterials by aryl diazonium salts for biomedical sciences. Adv Colloid Interface Sci 2021; 294:102479. [PMID: 34237631 DOI: 10.1016/j.cis.2021.102479] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 06/03/2021] [Accepted: 06/28/2021] [Indexed: 02/06/2023]
Abstract
Nanoparticles (NPs) can be prepared by simple reactions and methods from a number of materials. Their small size opens up a number of applications in different fields, among which biomedicine, including: i) drug delivery, ii) biosensors, iii) bioimaging, iv) antibacterial activity. To be able to perform such tasks, NPs must be modified with a variety of functional molecules, such as drugs, targeting groups, chemical tags or antibacterial agents, and must also be prevented from aggregation. The attachment must be stable to resist during the transportation to the targeted location. Diazonium salts, which have been widely used for coupling applications and surface modification, fulfil such criteria. Moreover, they are simple to prepare and can be easily substituted with a large number of organic groups. This review describes the use of these compounds in nanomedicine with a focus on the construction of nanohybrids derived from metal, oxide and carbon-based NPs as well as viruses.
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Affiliation(s)
- Da Li
- Université de Paris, LCBPT, CNRS, F-75006 Paris, France
| | - Yun Luo
- Université de Paris, LCBPT, CNRS, F-75006 Paris, France.
| | | | - Li He
- Université de Paris, LCBPT, CNRS, F-75006 Paris, France
| | - Ming Jin
- Université de Paris, LCBPT, CNRS, F-75006 Paris, France
| | | | - Jean Pinson
- Université de Paris, ITODYS, CNRS, F-75013 Paris, France.
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44
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Bentley CL. Scanning electrochemical cell microscopy for the study of (nano)particle electrochemistry: From the sub‐particle to ensemble level. ELECTROCHEMICAL SCIENCE ADVANCES 2021. [DOI: 10.1002/elsa.202100081] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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45
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Hassan A, Macedo LJ, Mattioli IA, Rubira RJ, Constantino CJ, Amorim RG, Lima FC, Crespilho FN. A three component-based van der Waals surface vertically designed for biomolecular recognition enhancement. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138025] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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46
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Khan R, Nishina Y. Covalent functionalization of carbon materials with redox-active organic molecules for energy storage. NANOSCALE 2021; 13:36-50. [PMID: 33336671 DOI: 10.1039/d0nr07500k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Carbon-based materials (CBMs) have shown great versatility because they can be chemically combined with other materials for various applications. Chemical modification of CBMs can be achieved via covalent or non-covalent interactions. Non-covalent interactions are weak and fragile, causing structural change and molecule dissociation. Therefore, in this review, we summarize the covalent modification of CBMs via organic chemistry techniques, aiming at forming more robust and stable CBMs. Besides, their application as electrode materials in energy storage systems is also within the scope of this review. Covalent binding of redox-active organic molecules with CBMs improves the transfer rate of electrons and prevents the dissolution of redox-active molecules, resulting in good conductivity and cycle life. Numerous papers on the functionalization of CBMs have been published to date, but some of them lack scientific evidence and are unable to understand from chemistry viewpoint. Reliable articles with adequate evidence are summarized in this review from a synthetic chemistry viewpoint.
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Affiliation(s)
- Rizwan Khan
- Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama 700-8530, Japan.
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47
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Nosrati H, Aramideh Khouy R, Nosrati A, Khodaei M, Banitalebi-Dehkordi M, Ashrafi-Dehkordi K, Sanami S, Alizadeh Z. Nanocomposite scaffolds for accelerating chronic wound healing by enhancing angiogenesis. J Nanobiotechnology 2021; 19:1. [PMID: 33397416 PMCID: PMC7784275 DOI: 10.1186/s12951-020-00755-7] [Citation(s) in RCA: 282] [Impact Index Per Article: 94.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 12/12/2020] [Indexed: 12/23/2022] Open
Abstract
Skin is the body's first barrier against external pathogens that maintains the homeostasis of the body. Any serious damage to the skin could have an impact on human health and quality of life. Tissue engineering aims to improve the quality of damaged tissue regeneration. One of the most effective treatments for skin tissue regeneration is to improve angiogenesis during the healing period. Over the last decade, there has been an impressive growth of new potential applications for nanobiomaterials in tissue engineering. Various approaches have been developed to improve the rate and quality of the healing process using angiogenic nanomaterials. In this review, we focused on molecular mechanisms and key factors in angiogenesis, the role of nanobiomaterials in angiogenesis, and scaffold-based tissue engineering approaches for accelerated wound healing based on improved angiogenesis.
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Affiliation(s)
- Hamed Nosrati
- Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran.
| | | | - Ali Nosrati
- School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mohammad Khodaei
- Department of Materials Science and Engineering, Golpayegan University of Technology, Golpayegan, Iran
| | - Mehdi Banitalebi-Dehkordi
- Department of Molecular Medicine, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Korosh Ashrafi-Dehkordi
- Department of Molecular Medicine, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Samira Sanami
- Department of Medical Biotechnology, School of Advanced Technologies, Shahrekord University of Medical Sciences, Shahrekord, Iran
| | - Zohreh Alizadeh
- Endometrium and Endometriosis Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
- Department of Anatomical Sciences, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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48
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Gao Y, Li C, Yi W, Fei J, Yi L, Yu P, Mao L. Exfoliated graphdiyne for the electroless deposition of Au nanoparticles with high catalytic activity. Analyst 2021; 146:444-449. [DOI: 10.1039/d0an01814g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Graphdiyne (GDY), a novel two-dimensional (2D) carbon material with sp- and sp2-hybridized carbon atoms, has earned a lot of attention in recent years.
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Affiliation(s)
- Yan Gao
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education
- School of Chemistry
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Changwei Li
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education
- School of Chemistry
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Wei Yi
- Beijing National Laboratory for Molecular Science
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- CAS Research/Education Center for Excellence in Molecule Science
| | - Junjie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education
- School of Chemistry
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Lanhua Yi
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education
- School of Chemistry
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Ping Yu
- Beijing National Laboratory for Molecular Science
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- CAS Research/Education Center for Excellence in Molecule Science
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Science
- Key Laboratory of Analytical Chemistry for Living Biosystems
- Institute of Chemistry
- Chinese Academy of Sciences (CAS)
- CAS Research/Education Center for Excellence in Molecule Science
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49
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Neubert TJ, Wehrhold M, Kaya NS, Balasubramanian K. Faradaic effects in electrochemically gated graphene sensors in the presence of redox active molecules. NANOTECHNOLOGY 2020; 31:405201. [PMID: 32485689 DOI: 10.1088/1361-6528/ab98bc] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Field-effect transistors (FETs) based on graphene are promising devices for the direct sensing of a range of analytes in solution. We show here that the presence of redox active molecules in the analyte solution leads to the occurrence of heterogeneous electron transfer with graphene generating a Faradaic current (electron transfer) in a FET configuration resulting in shifts of the Dirac point. Such a shift occurs if the Faradaic current is significantly high, e.g. due to a large graphene area. Furthermore, the redox shift based on the Faradaic current, reminiscent of a doping-like effect, is found to be non-Nernstian and dependent on parameters known from electrode kinetics in potentiodynamic methods, such as the electrode area, the standard potential of the redox probes and the scan rate of the gate voltage modulation. This behavior clearly differentiates this effect from other transduction mechanisms based on electrostatic interactions or molecular charge transfer doping effects, which are usually behind a shift of the Dirac point. These observations suggest that large-area unmodified/pristine graphene in field-effect sensors behaves as a non-polarized electrode in liquid. Strategies for ensuring a polarized interface are discussed.
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Affiliation(s)
- Tilmann J Neubert
- School of Analytical Sciences Adlershof (SALSA), IRIS Adlershof and Department of Chemistry, Humboldt-Universität zu Berlin, Berlin, Germany. Institut für Silizium-Photovoltaik, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany
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50
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Bentley CL, Agoston R, Tao B, Walker M, Xu X, O'Mullane AP, Unwin PR. Correlating the Local Electrocatalytic Activity of Amorphous Molybdenum Sulfide Thin Films with Microscopic Composition, Structure, and Porosity. ACS APPLIED MATERIALS & INTERFACES 2020; 12:44307-44316. [PMID: 32880446 DOI: 10.1021/acsami.0c11759] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Thin-film electrodes, produced by coating a conductive support with a thin layer (nanometer to micrometer) of active material, retain the unique properties of nanomaterials (e.g., activity, surface area, conductivity, etc.) while being economically scalable, making them highly desirable as electrocatalysts. Despite the ever-increasing methods of thin-film deposition (e.g., wet chemical synthesis, electrodeposition, chemical vapor deposition, etc.), there is insufficient understanding on the nanoscale electrochemical activity of these materials in relation to structure/composition, particularly for those that lack long-range order (i.e., amorphous thin-film materials). In this work, scanning electrochemical cell microscopy (SECCM) is deployed in tandem with complementary, colocated compositional/structural analysis to understand the microscopic factors governing the electrochemical activity of amorphous molybdenum sulfide (a-MoSx) thin films, a promising class of hydrogen evolution reaction (HER) catalyst. The a-MoSx thin films, produced under ambient conditions by electrodeposition, possess spatially heterogeneous electrocatalytic activity on the tens-of-micrometer scale, which is not attributable to microscopic variations in elemental composition or chemical structure (i.e., Mo and/or S bonding environments), shown through colocated, local energy-dispersive X-ray spectroscopy (EDS) and X-ray photoelectron spectroscopy (XPS) analysis. A new SECCM protocol is implemented to directly correlate electrochemical activity to the electrochemical surface area (ECSA) in a single measurement, revealing that the spatially heterogeneous HER response of a-MoSx is predominantly attributable to variations in the nanoscale porosity of the thin film, with surface roughness ruled out as a major contributing factor by complementary atomic force microscopy (AFM). As microscopic composition, structure, and porosity (ECSA) are all critical factors dictating the functional properties of nanostructured materials in electrocatalysis and beyond (e.g., battery materials, electrochemical sensors, etc.), this work further cements SECCM as a premier tool for structure-function studies in (electro)materials science.
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Affiliation(s)
- Cameron L Bentley
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Roland Agoston
- School of Chemistry and Physics, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
| | - Binglin Tao
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Marc Walker
- Department of Physics, University of Warwick, Coventry CV4 7AL, U.K
| | - Xiangdong Xu
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
| | - Anthony P O'Mullane
- School of Chemistry and Physics, Queensland University of Technology (QUT), Brisbane, QLD 4001, Australia
| | - Patrick R Unwin
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, U.K
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