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He YF, Yang SY, Lv WL, Qian C, Wu G, Zhao X, Liu XW. Deep-Learning Driven, High-Precision Plasmonic Scattering Interferometry for Single-Particle Identification. ACS Nano 2024; 18:9704-9712. [PMID: 38512797 DOI: 10.1021/acsnano.4c01411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Label-free probing of the material composition of (bio)nano-objects directly in solution at the single-particle level is crucial in various fields, including colloid analysis and medical diagnostics. However, it remains challenging to decipher the constituents of heterogeneous mixtures of nano-objects with high sensitivity and resolution. Here, we present deep-learning plasmonic scattering interferometric microscopy, which is capable of identifying the composition of nanoparticles automatically with high throughput at the single-particle level. By employing deep learning to decode the quantitative relationship between the interferometric scattering patterns of nanoparticles and their intrinsic material properties, this technique is capable of high-throughput, label-free identification of diverse nanoparticle types. We demonstrate its versatility in analyzing dynamic surface chemical reactions on single nanoparticles, revealing its potential as a universal platform for nanoparticle imaging and reaction analysis. This technique not only streamlines the process of nanoparticle characterization, but also proposes a methodology for a deeper understanding of nanoscale dynamics, holding great potential for addressing extensive fundamental questions in nanoscience and nanotechnology.
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Affiliation(s)
- Yi-Fan He
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Si-Yu Yang
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Wen-Li Lv
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Chen Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Gang Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaona Zhao
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xian-Wei Liu
- Hefei National Laboratory for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
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2
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Lin H, Xu Y, Chen X, Fang Z, Yan T, Ma K, Liu L, Xi J. In Situ Mapping of Activity Distribution of V(II)/V(III) and Onset Potential Distribution of Hydrogen Evolution Side Reaction in Vanadium Flow Batteries. Small Methods 2023:e2300841. [PMID: 37882331 DOI: 10.1002/smtd.202300841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/25/2023] [Indexed: 10/27/2023]
Abstract
Vanadium flow batteries (VFBs) face a challenge with the low reaction rates of the V(II)/V(III) redox couple, which limits the performance of VFBs. Additionally, the negative electrode in VFBs is often accompanied by the persistent hydrogen evolution reaction (HER), which is difficult to eliminate. Therefore, understanding the spatial distribution of activity on the negative electrode and the HER side reaction on the electrode surface is of critical importance. This study proposes a weak measurement imaging method to characterize the spatial distribution of surface activity and HER onset potential on the negative electrode in VFBs). This method enables the visualization and in situ detection of key parameters such as the absolute values of |ipa |, |ipc |, |∆E|, |ipc /ipa |, and the HER onset potential. By comparing three different types of graphite felts with varying activity levels, it validates the feasibility of this method. Furthermore, electrochemical stability tests are conducted to study the electrodes repeatability, uniformity, and durability. This method holds promise in guiding the design of electrodes with enhanced activity, good reversibility, minimized HER side reactions, and uniform distribution.
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Affiliation(s)
- Hao Lin
- Institute of Materials Research, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Yang Xu
- Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Xiao Chen
- Institute of Materials Research, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Zengxian Fang
- Institute of Materials Research, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Tian Yan
- Institute of Materials Research, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Kaijie Ma
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, 14853-1301, USA
| | - Le Liu
- Institute of Materials Research, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Jingyu Xi
- Institute of Materials Research, Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
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3
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Wu G, Qian C, Lv WL, Zhao X, Liu XW. Dynamic imaging of interfacial electrochemistry on single Ag nanowires by azimuth-modulated plasmonic scattering interferometry. Nat Commun 2023; 14:4194. [PMID: 37443367 DOI: 10.1038/s41467-023-39866-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Direct visualization of surface chemical dynamics in solution is essential for understanding the mechanisms involved in nanocatalysis and electrochemistry; however, it is challenging to achieve high spatial and temporal resolution. Here, we present an azimuth-modulated plasmonic imaging technique capable of imaging dynamic interfacial changes. The method avoids strong interference from reflected light and consequently eliminates the parabolic-like interferometric patterns in the images, allowing for a 67-fold increase in the spatial resolution of plasmonic imaging. We demonstrate that this optical imaging approach enables comprehensive analyses of surface chemical dynamics and identification of previously unknown surface reaction heterogeneity by investigating electrochemical redox reactions over single silver nanowires as an example. This work provides a general strategy for high-resolution plasmonic imaging of surface electrochemical dynamics and other interfacial chemical reactions, complementing existing surface characterization methods.
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Affiliation(s)
- Gang Wu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Chen Qian
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
| | - Wen-Li Lv
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xiaona Zhao
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China
| | - Xian-Wei Liu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei, 230026, China.
- Department of Applied Chemistry, University of Science and Technology of China, Hefei, 230026, China.
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4
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Lv WL, Qian C, Cao CX, Lv ZT, Liu XW. Plasmonic Scattering Imaging of Surface-Bonded Nanoparticles at the Solution-Solid Interface. ACS Appl Mater Interfaces 2023. [PMID: 37294740 DOI: 10.1021/acsami.3c04416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Imaging nanoscale objects at interfaces is essential for revealing surface-tuned mechanisms in chemistry, physics, and life science. Plasmonic-based imaging, a label-free and surface-sensitive technique, has been widely used for studying the chemical and biological behavior of nanoscale objects at interfaces. However, direct imaging of surface-bonded nanoscale objects remains challenging due to uneven image backgrounds. Here, we present a new surface-bonded nanoscale object detection microscopy that eliminates strong background interference by reconstructing accurate scattering patterns at different positions. Our method effectively functions at low signal-to-background ratios, allowing for optical scattering detection of surface-bonded polystyrene nanoparticles and severe acute respiratory syndrome coronavirus 2 pseudovirus. It is also compatible with other imaging configurations, such as bright-field imaging. This technique complements existing methods for dynamic scattering imaging and broadens the applications of plasmonic imaging techniques for high-throughput sensing of surface-bonded nanoscale objects, enhancing our understanding of the properties, composition, and morphology of nanoparticles and surfaces at the nanoscale.
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Affiliation(s)
- Wen-Li Lv
- Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Chen Qian
- Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Cheng-Xin Cao
- Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhen-Ting Lv
- Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xian-Wei Liu
- Hefei National Research Center for Physical Sciences at the Microscale, Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
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5
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Zhang P, Zhou X, Wang S. Plasmonic Scattering Microscopy for Label-Free Imaging of Molecular Binding Kinetics: From Single Molecules to Single Cells. Chemistry Methods 2023; 3:e202200066. [PMID: 37448471 PMCID: PMC10344632 DOI: 10.1002/cmtd.202200066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Indexed: 07/15/2023]
Abstract
Measuring molecular binding kinetics represents one of the most important tasks in molecular interaction analysis. Surface plasmon resonance (SPR) is a popular tool for analyzing molecular binding. Plasmonic scattering microscopy (PSM) is a newly developed SPR imaging technology, which detects the out-of-plane scattering of surface plasmons by analytes and has pushed the detection limit of label-free SPR imaging down to a single-protein level. In addition, PSM also allows SPR imaging with high spatiotemporal resolution, making it possible to analyze cellular response to the molecular bindings. In this Mini Review, we present PSM as a method of choice for chemical and biological imaging, introduce its theoretical mechanism, present its experimental schemes, summarize its exciting applications, and discuss its challenges as well as the promising future.
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Affiliation(s)
- Pengfei Zhang
- Biodesign Center for Bioelectronics and Biosensors, Arizona State University, Tempe, AZ, 85287 (USA)
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P. R. China)
| | - Xinyu Zhou
- Biodesign Center for Bioelectronics and Biosensors, Arizona State University, Tempe, AZ, 85287 (USA)
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287 (USA)
| | - Shaopeng Wang
- Biodesign Center for Bioelectronics and Biosensors, Arizona State University, Tempe, AZ, 85287 (USA)
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287 (USA)
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6
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Fang C, Li J, Feng Z, Li X, Cheng M, Qiao Y, Hu W. Spatiotemporal Mapping of Extracellular Electron Transfer Flux in a Microbial Fuel Cell Using an Oblique Incident Reflectivity Difference Technique. Anal Chem 2022; 94:10841-10849. [PMID: 35863931 DOI: 10.1021/acs.analchem.2c01912] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Extracellular electron transfer (EET) is a critical process involved in microbial fuel cells. Spatially resolved mapping of EET flux is of essential significance due to the inevitable spatial inhomogeneity over the bacteria/electrode interface. In this work, EET flux of a typical bioanode constructed by inhabiting Shewanella putrefaciens CN32 on a porous polyaniline (PANI) film was successfully mapped using a newly established oblique incident reflectivity difference (OIRD) technique. In the open-circuit state, the PANI film was reduced by the electrons released from the bacteria via the EET process, and the resultant redox state change of PANI was sensitively imaged by OIRD in a real-time and noninvasive manner. Due to the strong correlation between the EET flux and OIRD signal, the OIRD differential image represents spatially resolved EET flux, and the in situ OIRD signal reveals the dynamic behavior during the EET process, thus providing important spatiotemporal information complementary to the bulky electrochemical data.
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Affiliation(s)
- Changxiang Fang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
| | - Junying Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
| | - Zhihao Feng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
| | - Xiaoyi Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
| | - Min Cheng
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
| | - Yan Qiao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
| | - Weihua Hu
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, School of Materials and Energy, Southwest University, Chongqing 400715, P. R. China
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7
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Hu K, Luo L, Sun X, Li H. Unraveling the effects of gas species and surface wettability on the morphology of interfacial nanobubbles. Nanoscale Adv 2022; 4:2893-2901. [PMID: 36132003 PMCID: PMC9418701 DOI: 10.1039/d2na00009a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/24/2022] [Indexed: 06/15/2023]
Abstract
The morphology of interfacial nanobubbles (INBs) is a crucial but controversial topic in nanobubble research. We carried out atomistic molecular dynamics (MD) simulations to comprehensively study the morphology of INBs controlled by several determinant factors, including gas species, surface wettability, and bubble size. The simulations show that H2, O2 and N2 can all form stable INBs, with the contact angles (CAs, on the liquid side) following the order CA(H2) < CA(N2) < CA(O2), while CO2 prefers to form a gas film (pancake) structure on the substrate. The CA of INBs demonstrates a linear relation with the strength of interfacial interaction; however, a limited bubble CA of ∼25° is found on superhydrophilic surfaces. The high gas density and high internal pressure of the INBs are further confirmed, accompanied by strong interfacial gas enrichment (IGE) behavior. The morphology study of differently sized INBs shows that the internal density of the gas is drastically decreased with the bubble size at the initial stage of bubble nucleation, while the CA remains almost constant. Based on the simulation results, a modified Young's equation is presented for describing the extraordinary morphology of INBs.
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Affiliation(s)
- Kadi Hu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemistry Technology Beijing 100029 PR China
| | - Liang Luo
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology Beijing 100029 PR China
| | - Xiaoming Sun
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemistry Technology Beijing 100029 PR China
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology Beijing 100029 PR China
| | - Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemistry Technology Beijing 100029 PR China
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8
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Abstract
An optical microscope is probably the most intuitive, simple, and commonly used instrument to observe objects and discuss behaviors through images. Although the idea of imaging electrochemical processes operando by optical microscopy was initiated 40 years ago, it was not until significant progress was made in the last two decades in advanced optical microscopy or plasmonics that it could become a mainstream electroanalytical strategy. This review illustrates the potential of different optical microscopies to visualize and quantify local electrochemical processes with unprecedented temporal and spatial resolution (below the diffraction limit), up to the single object level with subnanoparticle or single-molecule sensitivity. Developed through optically and electrochemically active model systems, optical microscopy is now shifting to materials and configurations focused on real-world electrochemical applications.
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Affiliation(s)
| | - Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China;
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9
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Wu G, Zhou X, Lv WL, Qian C, Liu XW. Real-Time Plasmonic Imaging of the Compositional Evolution of Single Nanoparticles in Electrochemical Reactions. Nano Lett 2022; 22:4383-4391. [PMID: 35549482 DOI: 10.1021/acs.nanolett.2c00831] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Real-time probing of the compositional evolution of single nanoparticles during an electrochemical reaction is crucial for understanding the structure-performance relationship and rationally designing nanomaterials for desirable applications; however, it is consistently challenging to achieve high-throughput real-time tracking. Here, we present an optical imaging method, termed plasmonic scattering interferometry microscopy (PSIM), which is capable of imaging the compositional evolution of single nanoparticles during an aqueous electrochemical reaction in real time. By quantifying the plasmonic scattering interferometric pattern of nanoparticles, we establish the relationship between the pattern and composition of single nanoparticles. Using PSIM, we have successfully probed the compositional transformation dynamics of multiple individual nanoparticles during electrochemical reactions. PSIM could be used as a universal platform for exploring the compositional evolution of nanomaterials at the single-nanoparticle level and offers great potentials for addressing the extensive fundamental questions in nanoscience and nanotechnology.
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Affiliation(s)
- Gang Wu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xiaoli Zhou
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Wen-Li Lv
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Chen Qian
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xian-Wei Liu
- Chinese Academy of Sciences Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
- Department of Applied Chemistry, University of Science and Technology of China, Hefei 230026, China
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10
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Nizamov S, Sazdovska SD, Mirsky VM. A review of optical methods for ultrasensitive detection and characterization of nanoparticles in liquid media with a focus on the wide field surface plasmon microscopy. Anal Chim Acta 2022. [DOI: 10.1016/j.aca.2022.339633] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 02/16/2022] [Accepted: 02/17/2022] [Indexed: 12/27/2022]
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11
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Wang Z, Liu R, Chen HY, Wang H. Plasmonic Imaging of Tuning Electron Tunneling Mediated by a Molecular Monolayer. JACS Au 2021; 1:1700-1707. [PMID: 34723273 PMCID: PMC8549056 DOI: 10.1021/jacsau.1c00292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 06/13/2023]
Abstract
Probing and tuning the electron tunneling in metal electrode-insulator-metal nanoparticle systems provide a unique vision for understanding the fundamental mechanism of electrochemistry and broadening the horizon in practical applications of molecular electronics in many electrochemical systems. Here we report a plasmonic imaging technique to monitor the local double-layer charging of individual Au nanoparticles deposited on gold electrode separated by monolayer of n-alkanethiol molecules. The thickness of molecular monolayer tunes the tunneling kinetics and conductivity, which predicts the heterogeneous behavior on the modified electrode surface for different electrochemical systems. We studied the distance dependence of the electron tunneling and double layer charging processes by a plasmonic-based electrical impedance microscopy. By performing fast Fourier transform analysis of the recorded plasmonic image sequences, we can quantify the interfacial impedance of single nanoparticles and the tunneling decay constant of molecular layer. We further observed the electron neutralization dynamics during single-nanoparticle collisions on different surfaces. This optical readout of electron tunneling demonstrates an imaging approach to determine the electrical properties of metal electrode-insulator-metal nanoparticle systems, which include the electron tunneling mechanism and local impedance.
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Affiliation(s)
- Zixiao Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Ruihong Liu
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
- Zhengzhou
Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
| | - Hui Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing
University, Nanjing 210023, China
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12
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Garcia A, Wang K, Bedier F, Benavides M, Wan Z, Wang S, Wang Y. Plasmonic Imaging of Electrochemical Reactions at Individual Prussian Blue Nanoparticles. Front Chem 2021; 9:718666. [PMID: 34552911 PMCID: PMC8450507 DOI: 10.3389/fchem.2021.718666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/23/2021] [Indexed: 11/25/2022] Open
Abstract
Prussian blue is an iron-cyanide-based pigment steadily becoming a widely used electrochemical sensor in detecting hydrogen peroxide at low concentration levels. Prussian blue nanoparticles (PBNPs) have been extensively studied using traditional ensemble methods, which only provide averaged information. Investigating PBNPs at a single entity level is paramount for correlating the electrochemical activities to particle structures and will shed light on the major factors governing the catalyst activity of these nanoparticles. Here we report on using plasmonic electrochemical microscopy (PEM) to study the electrochemistry of PBNPs at the individual nanoparticle level. First, two types of PBNPs were synthesized; type I synthesized with double precursors method and type II synthesized with polyvinylpyrrolidone (PVP) assisted single precursor method. Second, both PBNPs types were compared on their electrochemical reduction to form Prussian white, and the effect from the different particle structures was investigated. Type I PBNPs provided better PEM sensitivity and were used to study the catalytic reduction of hydrogen peroxide. Progressively decreasing plasmonic signals with respect to increasing hydrogen peroxide concentration were observed, demonstrating the capability of sensing hydrogen peroxide at a single nanoparticle level utilizing this optical imaging technique.
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Affiliation(s)
- Adaly Garcia
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United States
| | - Kinsley Wang
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United States
| | - Fatima Bedier
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United States
| | - Miriam Benavides
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United States
| | - Zijian Wan
- Biodesign Center for Biosensors and Bioelectronics, Arizona State University, Tempe, AZ, United States.,School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ, United States
| | - Shaopeng Wang
- Biodesign Center for Biosensors and Bioelectronics, Arizona State University, Tempe, AZ, United States.,School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United States
| | - Yixian Wang
- Department of Chemistry and Biochemistry, California State University, Los Angeles, Los Angeles, CA, United States
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13
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Pan S, Li X, Yadav J. Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance. Phys Chem Chem Phys 2021; 23:19120-19129. [PMID: 34524292 DOI: 10.1039/d1cp02801d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review describes recent progress of spectroelectrochemistry (SEC) analysis of single metallic nanoparticles (NPs) which have strong surface plasmon resonance properties. Dark-field scattering (DFS), photoluminescence (PL), and electrogenerated chemiluminescence (ECL) are three commonly used optical methods to detect individual NPs and investigate their local redox activities in an electrochemical cell. These SEC methods are highly dependent on a strong light-scattering cross-section of plasmonic metals and their electrocatalytic characteristics. The surface chemistry and the catalyzed reaction mechanism of single NPs and their chemical transformations can be studied using these SEC methods. Recent progress in the experimental design and fundamental understanding of single-NP electrochemistry and catalyzed reactions using DFS, PL, and ECL is described along with selected examples from recent publications in this field. Perspectives on the challenges and possible solutions for these SEC methods and potential new directions are discussed.
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Affiliation(s)
- Shanlin Pan
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Xiao Li
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Jeetika Yadav
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
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14
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Saha P, Rahman MM, Hill CM. Borohydride oxidation electrocatalysis at individual, shape‐controlled Au nanoparticles. Electrochemical Science Advances 2021. [DOI: 10.1002/elsa.202100120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Affiliation(s)
- Partha Saha
- Department of Chemistry University of Wyoming Laramie Wyoming USA
| | | | - Caleb M. Hill
- Department of Chemistry University of Wyoming Laramie Wyoming USA
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15
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Han D, Zhu J. Surface-assisted fabrication of low-dimensional carbon-based nanoarchitectures. J Phys Condens Matter 2021; 33:343001. [PMID: 34111858 DOI: 10.1088/1361-648x/ac0a1b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 06/10/2021] [Indexed: 06/12/2023]
Abstract
On-surface synthesis, as an alternative to traditional in-solution synthesis, has become an emerging research field and attracted extensive attention over the past decade due to its ability to fabricate nanoarchitectures with exotic properties. Compared to wet chemistry, the on-surface synthesis conducted on atomically flat solid surfaces under ultrahigh vacuum exhibits unprecedented characteristics and advantages, opening novel reaction pathways for chemical synthesis. Various low-dimensional nanostructures have been fabricated on solid surfaces (mostly metal surfaces) based on this newly developed approach. This paper reviews the classic and latest works regarding carbon-based low-dimensional nanostructures since the arrival of on-surface synthesis era. These nanostructures are categorized into zero-, one- and two-dimensional classes and each class is composed of numerous sub-nanostructures. For certain specific nanostructures, comprehensive reports are given, including precursor design, substrate choice, synthetic strategies and so forth. We hope that our review will shed light on the fabrication of some significant nanostructures in this young and promising scientific area.
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Affiliation(s)
- Dong Han
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, People's Republic of China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, Hefei 230029, People's Republic of China
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16
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Zhvansky ES, Ivanov DG, Sorokin AA, Bugrova AE, Nikolaev EN, Popov IA. Interactive Estimation of Heterogeneity from Mass Spectrometry Imaging. Anal Chem 2021; 93:3706-3709. [PMID: 33591173 DOI: 10.1021/acs.analchem.1c00437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we demonstrate a new approach for interactively assessing hyperspectral data spatial structures for heterogeneity using mass spectrometry imaging. This approach is based on the visualization of the cosine distance as the similarity levels between mass spectra of a chosen region and the rest of the image (sample). The applicability of the method is demonstrated on a set of mass spectrometry images of frontal mouse brain slices. Selection of the reference pixel of the mass spectrometric image and a further view of the corresponding cosine distance map helps to prepare supporting vectors for further analysis, select features, and carry out biological interpretation of different tissues in the mass spectrometry context with or without histological annotation. Visual inspection of the similarity maps reveals the spatial distribution of features in tissue samples, which can serve as the molecular histological annotation of a slide.
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Affiliation(s)
- Evgeny S Zhvansky
- Moscow Institute of Physics and Technology, Institutskij bystr. 9, 141700 Dolgoprudnyi, Moscow Region, Russia
| | - Daniil G Ivanov
- Moscow Institute of Physics and Technology, Institutskij bystr. 9, 141700 Dolgoprudnyi, Moscow Region, Russia.,Emanuel Institute for Biochemical Physics of the Russian Academy of Sciences, Kosygina st. 4, 119334 Moscow, Russia
| | - Anatoly A Sorokin
- Moscow Institute of Physics and Technology, Institutskij bystr. 9, 141700 Dolgoprudnyi, Moscow Region, Russia.,Institute of Cell Biophysics RAS, Institutskaya st., 3, 142290 Pushchino, Russia.,Institute of Systems, Molecular and Integrative Biology, Biosciences Building, University of Liverpool, Crown Street, Liverpool L69 7ZB, U.K
| | - Anna E Bugrova
- Emanuel Institute for Biochemical Physics of the Russian Academy of Sciences, Kosygina st. 4, 119334 Moscow, Russia
| | - Evgeny N Nikolaev
- Skolkovo Institute of Science and Technology, Novaya Street, 100, 143025 Skolkovo, Russia
| | - Igor A Popov
- Moscow Institute of Physics and Technology, Institutskij bystr. 9, 141700 Dolgoprudnyi, Moscow Region, Russia
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17
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Garcia A, Wang S, Tao N, Shan X, Wang Y. Plasmonic Imaging of Oxidation and Reduction of Single Gold Nanoparticles and Their Surface Structural Dynamics. ACS Sens 2021; 6:502-507. [PMID: 33373199 DOI: 10.1021/acssensors.0c02055] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Gold nanoparticles (AuNPs) have been widely used in catalytic electrochemistry. Heterogeneity in size, shape, and surface sites leads to variable, particle-specific catalytic activities. Conventional electrochemical methods can only obtain the collective responses from all the catalytic nanoparticles on the electrode surface; the heterogeneity of particle performance will be averaged. Alternatively, plasmonic electrochemical imaging (PECi) is capable of imaging the electrochemical activity at individual nanoparticles. In this work, PECi was used to image the oxidation and reduction of the gold surface at individual AuNPs, and their associated structural alterations were successfully measured. We have studied the electrochemical responses from gold nanocubes, gold nanorods, and gold nanowires with PECi and observed different surface redox activities. We have also demonstrated the capability of monitoring the surface dynamics at individual AuNPs utilizing characteristic PECi derived cyclic voltammograms (CVs).
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Affiliation(s)
- Adaly Garcia
- Department of Chemistry and Biochemistry, California State University, Los Angeles, 5151 State University Drive, Los Angeles, California 90032, United States
| | - Shaopeng Wang
- Center for Biosensors and Bioelectronics, Biodesign Institute, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85281, United States
| | - Nongjian Tao
- Center for Biosensors and Bioelectronics, Biodesign Institute, Arizona State University, 1001 South McAllister Avenue, Tempe, Arizona 85281, United States
| | - Xiaonan Shan
- Department of Electrical & Computer Engineering, University of Houston, 4800 Calhoun Road, Houston, Texas 77004, United States
| | - Yixian Wang
- Department of Chemistry and Biochemistry, California State University, Los Angeles, 5151 State University Drive, Los Angeles, California 90032, United States
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18
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Forzani ES, He H, Hihath J, Lindsay S, Penner RM, Wang S, Xu B. Moving Electrons Purposefully through Single Molecules and Nanostructures: A Tribute to the Science of Professor Nongjian Tao (1963-2020). ACS Nano 2020; 14:12291-12312. [PMID: 32940998 PMCID: PMC7718722 DOI: 10.1021/acsnano.0c06017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrochemistry intersected nanoscience 25 years ago when it became possible to control the flow of electrons through single molecules and nanostructures. Many surprises and a wealth of understanding were generated by these experiments. Professor Nongjian Tao was among the pioneering scientists who created the methods and technologies for advancing this new frontier. Achieving a deeper understanding of charge transport in molecules and low-dimensional materials was the first priority of his experiments, but he also succeeded in discovering applications in chemical sensing and biosensing for these novel nanoscopic systems. In parallel with this work, the investigation of a range of phenomena using novel optical microscopic methods was a passion of his and his students. This article is a review and an appreciation of some of his many contributions with a view to the future.
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Affiliation(s)
- Erica S Forzani
- Biodesign Center for Bioelectronics and Biosensors, Departments of Chemical Engineering and Mechanical Engineering, Arizona State University, Tempe, Arizona 85287, United States
| | - Huixin He
- Department of Chemistry, Rutgers University, Newark, New Jersey 07102, United States
| | - Joshua Hihath
- Department of Electrical and Computer Engineering, University of California, Davis, Davis, California 95616, United States
| | - Stuart Lindsay
- Biodesign Center for Single Molecule Biophysics, Arizona State University, Tempe, Arizona 85287, United States
| | - Reginald M Penner
- Department of Chemistry, University of California, Irvine, California 92697, United States
| | - Shaopeng Wang
- Biodesign Center for Bioelectronics and Biosensors, Arizona State University, Tempe, Arizona 85287, United States
| | - Bingqian Xu
- School of Electrical and Computer Engineering, University of Georgia, Athens, Georgia 30602, United States
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19
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Wei W, Yuan T, Jiang W, Gao J, Chen HY, Wang W. Accessing the Electrochemical Activity of Single Nanoparticles by Eliminating the Heterogeneous Electrical Contacts. J Am Chem Soc 2020; 142:14307-14313. [PMID: 32787250 DOI: 10.1021/jacs.0c06171] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
While single nanoparticle electrochemistry holds great promise for establishing the structure-activity relationship (SAR) of electroactive nanomaterials, as it removes the heterogeneity among individuals, successful SAR studies remain rare. When one nanoparticle is seen to exhibit better performance than the others, it is often simply attributed to better activity of the particular individual. By taking the ion insertion reaction of Prussian blue nanoparticles as an example, here we show that the electrical contact between nanoparticles and electrode, a previously overlooked factor, was greatly distinct from one nanoparticle to another and significantly contributed to the apparent heterogeneity in the reactivity and cyclability. An individual nanoparticle with intrinsically perfect structure (size, facet, crystallinity, and so on) could be completely inactive, simply due to poor electrical contacts, which blurred the SAR and likely caused failures. We further proposed a sputter-coating method to enhance the electrical contacts by depositing an ultrathin platinum layer onto the sample. Such an approach was routinely adopted in scanning electron microscopy to improve the electron mobility between nanoparticles and substrate. Elimination of heterogeneous contacts ensured that the electrochemical activity of single nanoparticles can be accessed and further correlated with their structural features, thus paving the way for single nanoparticle electrochemistry to deliver on its promises in SAR.
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Affiliation(s)
- Wei Wei
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Tinglian Yuan
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wenxuan Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jia Gao
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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20
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Abstract
Single-molecule-level measurements are bringing about a revolution in our understanding of chemical and biochemical processes. Conventional measurements are performed on large ensembles of molecules. Such ensemble-averaged measurements mask molecular-level dynamics and static and dynamic fluctuations in reactivity, which are vital to a holistic understanding of chemical reactions. Watching reactions on the single-molecule level provides access to this otherwise hidden information. Sub-diffraction-limited spatial resolution fluorescence imaging methods, which have been successful in the field of biophysics, have been applied to study chemical processes on single-nanoparticle and single-molecule levels, bringing us new mechanistic insights into physiochemical processes. However, the scope of chemical processes that can be studied using fluorescence imaging is considerably limited; the chemical reaction has to be designed such that it involves fluorophores or fluorogenic probes. In this article, we review optical imaging modalities alternative to fluorescence imaging, which expand greatly the range of chemical processes that can be probed with nanoscale or even single-molecule resolution. First, we show that the luminosity, wavelength, and intermittency of solid-state photoluminescence (PL) can be used to probe chemical transformations on the single-nanoparticle-level. Next, we highlight case studies where localized surface plasmon resonance (LSPR) scattering is used for tracking solid-state, interfacial, and near-field-driven chemical reactions occurring in individual nanoscale locations. Third, we explore the utility of surface- and tip-enhanced Raman scattering to monitor individual bond-dissociation and bond-formation events occurring locally in chemical reactions on surfaces. Each example has yielded some new understanding about molecular mechanisms or location-to-location heterogeneity in chemical activity. The review finishes with new and complementary tools that are expected to further enhance the scope of knowledge attainable through nanometer-scale resolution chemical imaging.
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Affiliation(s)
- Andrew J Wilson
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Dinumol Devasia
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
| | - Prashant K Jain
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. and Department of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA and Materials Research Lab, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA and Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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21
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Abstract
Stem cells show excellent potential in the field of tissue engineering and regenerative medicine based on their excellent capability to not only self-renew but also differentiate into a specialized cell type of interest. However, the lack of a non-destructive monitoring system makes it challenging to identify and characterize differentiated cells before their transplantation without compromising cell viability. Thus, the development of a non-destructive monitoring method for analyzing cell function is highly desired and can significantly benefit stem cell-based therapies. Recently, nanomaterial-based scaffolds (e.g., nanoarrays) have made possible considerable advances in controlling the differentiation of stem cells and characterization of the differentiation status sensitively in real time. This review provides a selective overview of the recent progress in the synthesis methods of nanoarrays and their applications in controlling stem cell fate and monitoring live cell functions electrochemically. We believe that the topics discussed in this review can provide brief and concise guidelines for the development of novel nanoarrays and promote the interest in live cell study applications. A method which can not only control but also monitor stem cell fate and function will be a promising technology that can accelerate stem cell therapies.
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Affiliation(s)
- Jin-Ho Lee
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, NJ 08854, USA.
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22
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Wang Y, Yang Q, Su B. Spatially resolved electrochemistry enabled by thin-film optical interference. Chem Commun (Camb) 2020; 56:12359-12362. [DOI: 10.1039/d0cc05265e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrochemical reactions occurring on the local surface can be spatially resolved by successive interferometric imaging of the nanochannel membrane coated electrode.
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Affiliation(s)
- Yafeng Wang
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
| | - Qian Yang
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
| | - Bin Su
- Institute of Analytical Chemistry
- Department of Chemistry
- Zhejiang University
- Hangzhou 310058
- China
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23
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Li L, Zhong C, Feng B, Chen N, Dai J, Bin Lu H, Hu W. Optical imaging of the potential distribution at transparent electrode/solution interfaces. Chem Commun (Camb) 2020; 56:4531-4534. [DOI: 10.1039/d0cc01500h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Optical monitoring of the electrode potential and imaging of its distribution on transparent electrodes are achieved by using OIRD technology.
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Affiliation(s)
- Ling Li
- Institute for Clean Energy & Advanced Materials
- School of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Changyin Zhong
- Institute for Clean Energy & Advanced Materials
- School of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Bomin Feng
- Institute for Clean Energy & Advanced Materials
- School of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Nan Chen
- Institute for Clean Energy & Advanced Materials
- School of Materials & Energy
- Southwest University
- Chongqing 400715
- China
| | - Jun Dai
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Hui Bin Lu
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- P. R. China
| | - Weihua Hu
- Institute for Clean Energy & Advanced Materials
- School of Materials & Energy
- Southwest University
- Chongqing 400715
- China
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24
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Ma K, Zhang Y, Liu L, Xi J, Qiu X, Guan T, He Y. In situ mapping of activity distribution and oxygen evolution reaction in vanadium flow batteries. Nat Commun 2019; 10:5286. [PMID: 31754107 DOI: 10.1038/s41467-019-13147-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 10/23/2019] [Indexed: 11/08/2022] Open
Abstract
Understanding spatial distribution difference and reaction kinetics of the electrode is vital for enhancing the electrochemical reaction efficiency. Here, we report a total internal reflection imaging sensor without background current interference to map local current distribution of the electrode in a vanadium redox flow battery during cyclic voltammetry (CV), enabling mapping of the activity and reversibility distribution with the spatial resolution of a single fiber. Three graphite felts with different activity are compared to verify its feasibility. In long-term cyclic voltammetry, the oxygen evolution reaction is proved to enhance activity distribution, and homogeneity of the electrode and its bubble kinetics with periodic fluctuation is consistent with the cyclic voltammetry curve, enabling the onset oxygen evolution/reduction potential determination. Higher activity and irreversibility distribution of the electrode is found in favor of the oxygen evolution reaction. This sensor has potential to detect in situ, among other processes, electrochemical reactions in flow batteries, water splitting, electrocatalysis and electrochemical corrosion.
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25
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Wang Y, Cao Z, Yang Q, Guo W, Su B. Optical methods for studying local electrochemical reactions with spatial resolution: A critical review. Anal Chim Acta 2019; 1074:1-15. [DOI: 10.1016/j.aca.2019.02.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 11/19/2022]
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27
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Xia Q, Chen Z, Xiao P, Wang M, Chen X, Zhang JR, Chen HY, Zhu JJ. Fermi level-tuned optics of graphene for attocoulomb-scale quantification of electron transfer at single gold nanoparticles. Nat Commun 2019; 10:3849. [PMID: 31451698 DOI: 10.1038/s41467-019-11816-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 08/06/2019] [Indexed: 01/21/2023] Open
Abstract
Measurement of electron transfer at single-molecule level is normally restricted by the detection limit of faraday current, currently in a picoampere to nanoampere range. Here we demonstrate a unique graphene-based electrochemical microscopy technique to make an advance in the detection limit. The optical signal of electron transfer arises from the Fermi level-tuned Rayleigh scattering of graphene, which is further enhanced by immobilized gold nanostars. Owing to the specific response to surface charged carriers, graphene-based electrochemical microscopy enables an attoampere-scale detection limit of faraday current at multiple individual gold nanoelectrodes simultaneously. Using the graphene-based electrochemical microscopy, we show the capability to quantitatively measure the attocoulomb-scale electron transfer in cytochrome c adsorbed at a single nanoelectrode. We anticipate the graphene-based electrochemical microscopy to be a potential electrochemical tool for in situ study of biological electron transfer process in organelles, for example the mitochondrial electron transfer, in consideration of the anti-interference ability to chemicals and organisms.
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29
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Chen Y, Zhao D, Fu J, Gou X, Jiang D, Dong H, Zhu JJ. In Situ Imaging Facet-Induced Spatial Heterogeneity of Electrocatalytic Reaction Activity at the Subparticle Level via Electrochemiluminescence Microscopy. Anal Chem 2019; 91:6829-6835. [PMID: 31006237 DOI: 10.1021/acs.analchem.9b01044] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Investigating catalytic behavior of heterogeneous catalysts, especially at the crystal facets level, is crucial for rational catalyst design in the energy and environmental fields. Here we demonstrate an efficient approach to in situ visualize and analyze the heterogeneity of electrocatalytic activity on different facets at the subparticle level via electrochemiluminescence (ECL) microscopy. ZnO crystals with various exposed facet proportions were synthesized, and the correlation between their electrocatalytic performance toward luminol analogue degradation and the exposed facets is established. It is clearly imaged that the ZnO (002) facet has superior catalytic performance compared to the ZnO (100) facet, which is supported by theoretical computation and electrochemical experiments as the facet-induced heterogeneity of the catalytic effect on oxygen reduction into the key reactant for ECL. Accordingly, the spatial heterogeneity of electrocatalytic activity at different facets on one particle is visualized for the first time. The realization of subparticle ECL imaging and kinetic analysis could provide a special approach to visualize facet-induced spatial heterogeneity of catalytic behavior and valuable information for the catalysis study and analysis.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Dongbo Zhao
- Kuang Yaming Honors School , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Jiaju Fu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Xiaodan Gou
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Hao Dong
- Kuang Yaming Honors School , Nanjing University , Nanjing , Jiangsu 210023 , China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210023 , China
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Li P, Zhan H, Tian S, Wang J, Wang X, Zhu Z, Dai J, Dai Y, Wang Z, Zhang C, Huang X, Huang W. Sequential Ligand Exchange of Coordination Polymers Hybridized with In Situ Grown and Aligned Au Nanowires for Rapid and Selective Gas Sensing. ACS Appl Mater Interfaces 2019; 11:13624-13631. [PMID: 30888141 DOI: 10.1021/acsami.9b02286] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Combining polymeric materials and conductive one-dimensional metal nanostructures is able to achieve enhanced chemical and electrical properties, but the control over their morphology and spatial arrangement remains a big challenge. Herein, by replacing benzenedicarboxylate (BDC) in ZnBDC nanoplates with oleylamine (OAM) in the presence of HAuCl4, Zn-OAM nanobelts with a highly ordered laminar structure were obtained, on which ultrathin Au nanowires (Au NWs) were deposited and aligned along the long axes of the nanobelts. The resulting Zn-OAM/Au NW hybrid further underwent an OAM-to-2-methylimidazole ligand exchange, resulting in the formation of porous nanobelts composed of ZIF-8 nanocrystals interwound with aligned Au NWs. Due to the synergistic effect between the polymeric and metallic structures, the Zn-OAM/Au NW hybrid nanobelts and ZIF-8/Au NW porous nanobelts demonstrated fast and selective gas sensing at ambient conditions, in sharp contrast to the nonresponsive Au NWs or Zn-based polymers alone.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Wei Huang
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , P.R. China
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31
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Jiang Y, Su H, Wei W, Wang Y, Chen HY, Wang W. Tracking the rotation of single CdS nanorods during photocatalysis with surface plasmon resonance microscopy. Proc Natl Acad Sci U S A 2019; 116:6630-4. [PMID: 30872472 DOI: 10.1073/pnas.1820114116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Rotational dynamics of anisotropic nanomaterials reveals and regulates their behaviors and functions in diverse fields ranging from nanomotors, biomechanics, and enzymatic catalysis to microrheology. An optical imaging technique that is suitable for all kinds of anisotropic nanoobjects, regardless of its inherent optical property, is thus highly desirable and it is yet to be demonstrated. In the present work, by taking a nonfluorescent and nonplasmonic CdS nanorod as an example, we demonstrate the capability of a recently developed surface plasmon resonance microscopy for determining the orientation of single anisotropic nanomaterials with arbitrary chemical composition and morphology. While rotational dynamics of anisotropic nanoobjects has often been limited in plasmonic and fluorescent nanomaterials, here we demonstrate the capability of a surface plasmon resonance microscopy (SPRM) to determine the orientation of all kinds of anisotropic nanomaterials. By taking CdS nanorods as an example, it was found that two-dimensional Fourier transform of the asymmetrical wave-like SPRM image resulted in a peak in its angular spectrum in k space. Consistency between the peak angle and the geometrical orientation of the nanorod was validated by both in situ scanning electron microscope characterizations and theoretical calculations. Real-time monitoring of the rotational dynamics of single CdS nanorods further revealed the accelerated rotation under appropriate reaction conditions for photocatalyzed hydrogen generation. The driving force was attributed to the asymmetric production of hydrogen molecules as a result of inhomogeneous distribution of reactive sites within the nanorod. The present work not only builds the experimental and theoretical connections between the orientation of anisotropic nanomaterials and its SPRM images; the general suitability of SPRM also sheds light on broad types of nonfluorescent and nonplasmonic anisotropic nanoobjects from semiconductors to bacteria and viruses.
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32
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Shahbakhsh M, Noroozifar M. 2D-Single-crystal hexagonal gold nanosheets for ultra-trace voltammetric determination of captopril. Mikrochim Acta 2019; 186:195. [PMID: 30783850 DOI: 10.1007/s00604-019-3260-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/16/2019] [Indexed: 11/29/2022]
Abstract
Two dimensional single-crystal hexagonal gold nanosheets (SCHGNSs) were prepared by microwave heating of a solution of HAuCl4 in an ionic liquid. The SCHGNSs were characterized by field emission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, atomic force microscopy and electrochemical impedance spectroscopy. The SCHGNSs were then used to modify a graphite paste electrode for voltammetric determination of the hypertension drug captopril (CAP). The modified electrode showed a well-defined oxidation peak (at 0.41 V vs. Ag/AgCl) at pH 7.0 using differential pulse voltammetry. Under the optimum conditions, the response is linear in the 2-400 nM and 4.0-50 μM CAP concentration range, and the detection limit (at S/N = 3) is 0.3 nM. The sensor was successfully applied to the determination of CAP in pharmaceutical tablets and in spiked urine. Graphical abstract Schematic presentation of the preparation of single crystal hexagonal gold nanosheets and their use to modify a carbon paste electrode for ultra-trace voltammetric determination of the drug captopril.
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Affiliation(s)
- Mehdi Shahbakhsh
- Analytical Research Laboratory, Department of Chemistry, University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, 98167-45845, Iran.
| | - Meissam Noroozifar
- Analytical Research Laboratory, Department of Chemistry, University of Sistan and Baluchestan, P.O. Box 98135-674, Zahedan, 98167-45845, Iran
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33
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Qian C, Wu G, Jiang D, Zhao X, Chen HB, Yang Y, Liu XW. Identification of Nanoparticles via Plasmonic Scattering Interferometry. Angew Chem Int Ed Engl 2019; 58:4217-4220. [PMID: 30730602 DOI: 10.1002/anie.201813567] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/22/2019] [Indexed: 01/12/2023]
Abstract
The development of optical imaging techniques has led to significant advancements in single-nanoparticle tracking and analysis, but these techniques are incapable of label-free selective nanoparticle recognition. A label-free plasmonic imaging technology that is able to identify different kinds of nanoparticles in water is now presented. It quantifies the plasmonic interferometric scattering patterns of nanoparticles and establishes relationships among the refractive index, particle size, and pattern both numerically and experimentally. Using this approach, metallic and metallic oxide particles with different radii were distinguished without any calibration. The ability to optically identify and size different kinds of nanoparticles can provide a promising platform for investigating nanoparticles in complex environments to facilitate nanoscience studies, such as single-nanoparticle catalysis and nanoparticle-based drug delivery.
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Affiliation(s)
- Chen Qian
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Gang Wu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Di Jiang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Xiaona Zhao
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Hai-Bo Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
| | - Yunze Yang
- Center for Biosensors and Bioelectronics, Biodesign Institute, Arizona State University, Tempe, AZ, 85287, USA
| | - Xian-Wei Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied Chemistry, University of Science & Technology of China, Hefei, 230026, China
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34
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Affiliation(s)
- Chen Qian
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied ChemistryUniversity of Science & Technology of China Hefei 230026 China
| | - Gang Wu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied ChemistryUniversity of Science & Technology of China Hefei 230026 China
| | - Di Jiang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied ChemistryUniversity of Science & Technology of China Hefei 230026 China
| | - Xiaona Zhao
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied ChemistryUniversity of Science & Technology of China Hefei 230026 China
| | - Hai‐Bo Chen
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied ChemistryUniversity of Science & Technology of China Hefei 230026 China
| | - Yunze Yang
- Center for Biosensors and Bioelectronics, Biodesign InstituteArizona State University Tempe AZ 85287 USA
| | - Xian‐Wei Liu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Applied ChemistryUniversity of Science & Technology of China Hefei 230026 China
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35
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Zhang K, Liu Y, Wang Y, Zhao J, Liu B. Direct SERS tracking of a chemical reaction at a single 13 nm gold nanoparticle. Chem Sci 2019; 10:1741-1745. [PMID: 30842839 PMCID: PMC6374737 DOI: 10.1039/c8sc04496a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 12/02/2018] [Indexed: 11/21/2022] Open
Abstract
Metal nanoparticles (NPs) with decreased sizes are promising catalysts in energy and medicine. Measuring the local reactions and simultaneously acquiring molecular insights at single small NPs, however, remain an experimental challenge. Here we report on surface-enhanced Raman spectroscopic (SERS) tracking of catalytic reactions of single 13 nm gold NPs (GNPs) in situ. We designed spatially isolated (>1.5 μm of inter-dimer space) GNP dimers, each of which consisted of two GNPs with sizes of ∼200 and ∼13 nm, respectively. This design integrates the SERS and catalytic activities into a single entity, while eliminating the crosstalk between adjacent particles, which allows us to trace the redox-derived spectral evolution at single 13 nm GNPs for the first time. We also quantified the reaction kinetics of each individual GNP and analyzed the average behavior of multiple GNPs. There is a large variability among different particles, which underscores the significance of single particle analysis.
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Affiliation(s)
- Kun Zhang
- Department of Chemistry , Shanghai Stomatological Hospital , State Key Lab of Molecular Engineering of Polymers, and Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , Shanghai 200433 , China .
| | - Yujie Liu
- Department of Chemistry , Shanghai Stomatological Hospital , State Key Lab of Molecular Engineering of Polymers, and Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , Shanghai 200433 , China .
| | - Yuning Wang
- Department of Chemistry , Shanghai Stomatological Hospital , State Key Lab of Molecular Engineering of Polymers, and Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , Shanghai 200433 , China .
| | - Jingjing Zhao
- Department of Chemistry , Shanghai Stomatological Hospital , State Key Lab of Molecular Engineering of Polymers, and Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , Shanghai 200433 , China .
| | - Baohong Liu
- Department of Chemistry , Shanghai Stomatological Hospital , State Key Lab of Molecular Engineering of Polymers, and Collaborative Innovation Center of Chemistry for Energy Materials , Fudan University , Shanghai 200433 , China .
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36
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37
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Cui C, Chen Y, Jiang D, Chen HY, Zhang J, Zhu JJ. Steady-State Electrochemiluminescence at Single Semiconductive Titanium Dioxide Nanoparticles for Local Sensing of Single Cells. Anal Chem 2018; 91:1121-1125. [DOI: 10.1021/acs.analchem.8b04778] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Chen Cui
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Ying Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jianrong Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, China
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38
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Mei Y, Zhong C, Li L, Nong J, Wei W, Hu W. Single-layer graphene-coated gold chip for electrochemical surface plasmon resonance study. Anal Bioanal Chem 2019; 411:4577-85. [DOI: 10.1007/s00216-018-1456-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 09/26/2018] [Accepted: 10/25/2018] [Indexed: 12/11/2022]
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39
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Zhai TT, Ye D, Shi Y, Zhang QW, Qin X, Wang C, Xia XH. Plasmon Coupling Effect-Enhanced Imaging of Metal Ions in Living Cells Using DNAzyme Assembled Core-Satellite Structures. ACS Appl Mater Interfaces 2018; 10:33966-33975. [PMID: 30113806 DOI: 10.1021/acsami.8b11477] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We demonstrate a core-satellite plasmonic nanoprobe assembled via metal-ion-dependent DNA-cleaving DNAzyme linker for imaging intercellular metal ion based on plasmon coupling effect at a single-particle level. As metal ions are present in the system, the DNAzyme linker will be cleaved, and thus, disassembly of the core-satellite nanoprobes occurs, which results in distinct blue shift of the scattering spectra of Au core-satellite probes and naked color change of the scattering light. This change in scattering spectra has been supported by theoretical simulations. As a proof of concept, sensitive detection of Cu2+ with a limit of detection down to 67.2 pM has been demonstrated. The nanoprobes have been further utilized for intracellular Cu2+ imaging in living cells. The results demonstrate that the present strategy provides a promising platform for detection and imaging of metal ions in living cells and could be potentially applied to imaging other interesting target molecules simply by substituting the oligonucleotide sequence.
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Affiliation(s)
- Ting-Ting Zhai
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Life Sciences , Nanjing University , Nanjing 210023 , China
| | - Dekai Ye
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Life Sciences , Nanjing University , Nanjing 210023 , China
| | - Yi Shi
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Life Sciences , Nanjing University , Nanjing 210023 , China
| | - Qian-Wen Zhang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Life Sciences , Nanjing University , Nanjing 210023 , China
| | - Xiang Qin
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Life Sciences , Nanjing University , Nanjing 210023 , China
| | - Chen Wang
- School of Science , China Pharmaceutical University , Nanjing 211198 , China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering and Collaborative Innovation Center of Chemistry for Life Sciences , Nanjing University , Nanjing 210023 , China
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40
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Saha P, Hill JW, Walmsley JD, Hill CM. Probing Electrocatalysis at Individual Au Nanorods via Correlated Optical and Electrochemical Measurements. Anal Chem 2018; 90:12832-12839. [DOI: 10.1021/acs.analchem.8b03360] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Partha Saha
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Joshua W. Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Joshua D. Walmsley
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
| | - Caleb M. Hill
- Department of Chemistry, University of Wyoming, Laramie, Wyoming 82071, United States
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41
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Wong Su S, Chieng A, Parres-Gold J, Chang M, Wang Y. Real-time determination of aggregated alpha-synuclein induced membrane disruption at neuroblastoma cells using scanning ion conductance microscopy. Faraday Discuss 2018; 210:131-143. [PMID: 29974096 PMCID: PMC6177297 DOI: 10.1039/c8fd00059j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Parkinson's disease (PD) is recognized as the second most common neurodegenerative disorder and has affected approximately one million people in the United States alone. A large body of evidence has suggested that deposition of aggregated alpha-synuclein (α-Syn), a brain protein abundant near presynaptic termini, in intracellular protein inclusions (Lewy bodies) results in neuronal cell damage and ultimately contributes to the progression of PD. However, the exact mechanism is still unclear. One hypothesis is that α-Syn aggregates disrupt the cell membrane's integrity, eventually leading to cell death. We used scanning ion conductance microscopy (SICM) to monitor the morphological changes of SH-SY5Y neuroblastoma cells and observed dramatic disruption of the cell membrane after adding α-Syn aggregates to the culturing media. This work demonstrates that SICM can be applied as a new approach to studying the cytotoxicity of α-Syn aggregates.
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Affiliation(s)
- Stephanie Wong Su
- Department of Chemistry and Biochemistry, California State University Los Angeles, 5151 State University Dr., Los Angeles, CA 90032, USA.
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42
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Hoener BS, Kirchner SR, Heiderscheit TS, Collins SS, Chang WS, Link S, Landes CF. Plasmonic Sensing and Control of Single-Nanoparticle Electrochemistry. Chem 2018. [DOI: 10.1016/j.chempr.2018.04.009] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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43
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Chen Y, Fu J, Cui C, Jiang D, Chen Z, Chen HY, Zhu JJ. In Situ Visualization of Electrocatalytic Reaction Activity at Quantum Dots for Water Oxidation. Anal Chem 2018; 90:8635-8641. [PMID: 29886727 DOI: 10.1021/acs.analchem.8b01935] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Exploring electrocatalytic reactions on the nanomaterial surface can give crucial information for the development of robust catalysts. Here, electrocatalytic reaction activity at single quantum dots (QDs) loaded silica microparticle involved in water oxidation is visualized using electrochemiluminescence (ECL) microscopy. Under positive potential, the active redox centers at QDs induce the generation of hydroperoxide surface intermediates as coreactants to remarkably enhance ECL emission from luminol derivative molecules for imaging. For the first time, in situ visualization of the catalytic activity of water oxidation with QDs catalyst was achieved, supported by a linear relation between ECL intensity and turn over frequency. A very slight diffusion trend attributed to only the luminol species proved in situ capture of hydroperoxide surface intermediates at catalytic active sites of QDs. This work provides tremendous potential in online imaging of electrocatalytic reactions and visual evaluation of catalyst performance.
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Affiliation(s)
- Ying Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Jiaju Fu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Chen Cui
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Dechen Jiang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Zixuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
| | - Jun-Jie Zhu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , Jiangsu 210093 , China
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44
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Sun T, Wang D, Mirkin MV. Tunneling Mode of Scanning Electrochemical Microscopy: Probing Electrochemical Processes at Single Nanoparticles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
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45
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Sun T, Wang D, Mirkin MV. Tunneling Mode of Scanning Electrochemical Microscopy: Probing Electrochemical Processes at Single Nanoparticles. Angew Chem Int Ed Engl 2018; 57:7463-7467. [DOI: 10.1002/anie.201801115] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/24/2018] [Indexed: 11/05/2022]
Affiliation(s)
- Tong Sun
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
| | - Dengchao Wang
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
| | - Michael V. Mirkin
- Department of Chemistry and Biochemistry Queens College-CUNY Flushing NY 11367 USA
- The Graduate Center of CUNY New York NY 10016 USA
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46
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Abstract
Chemical activity of single nanoparticles can be imaged and determined by monitoring the optical signal of each individual during chemical reactions with advanced optical microscopes. It allows for clarifying the functional heterogeneity among individuals, and for uncovering the microscopic reaction mechanisms and kinetics that could otherwise be averaged out in ensemble measurements.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Analytical Chemistry for Life Science
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- China
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47
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Lemineur JF, Noël JM, Combellas C, Ausserré D, Kanoufi F. The promise of antireflective gold electrodes for optically monitoring the electro-deposition of single silver nanoparticles. Faraday Discuss 2018; 210:381-395. [DOI: 10.1039/c8fd00037a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combined to electrochemical actuation, it allows the dynamic in situ visualization of the electrochemical growth and dissolution of individual Ag nanoparticles.
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Affiliation(s)
| | - Jean-Marc Noël
- Université Sorbonne Paris Cité
- Université Paris Diderot
- ITODYS
- CNRS UMR 7086
- F-75013 Paris
| | - Catherine Combellas
- Université Sorbonne Paris Cité
- Université Paris Diderot
- ITODYS
- CNRS UMR 7086
- F-75013 Paris
| | - Dominique Ausserré
- Université du Maine
- Institut des Matériaux et Molécules du Mans
- CNRS UMR 6283
- F-72000 Le Mans
- France
| | - Frédéric Kanoufi
- Université Sorbonne Paris Cité
- Université Paris Diderot
- ITODYS
- CNRS UMR 7086
- F-75013 Paris
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