51
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Ye Z, Wei L, Xiao L, Wang J. Laser illumination-induced dramatic catalytic activity change on Au nanospheres. Chem Sci 2019; 10:5793-5800. [PMID: 31293767 PMCID: PMC6568046 DOI: 10.1039/c9sc01666j] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 04/29/2019] [Indexed: 12/26/2022] Open
Abstract
Understanding morphology dependent catalytic kinetics from a single nanoparticle plays a significant role in the development of robust nano-catalysts with high efficiency. Unfortunately, detailed knowledge of the morphology dependent catalytic properties of single nanoparticles after shape transitions is lacking. In this work, the distinct catalytic properties of a single gold nanoparticle (GNP) after symmetry breaking were disclosed at the single-particle level for the first time. The morphology of the spherical GNP was elongated into a rod shape (i.e., gold nanorod, GNR) with a tightly focused Gaussian laser beam based on the photothermal effect. By using the fluorogenic oxidation reaction (i.e., amplex red to resorufin) as a model reaction, noticeable variation in catalytic efficiency after the shape modulation process was found at the single-particle level. The GNP displays noticeably higher catalytic efficiency which might be ascribed to the heterogeneous lattice structure on the particle surface as confirmed by transmission electron microscopy (TEM) characterization. Rearrangement of surface atoms after shape modulation normally generates a more ordered crystal structure, resulting in a lower surface energy for catalytic reaction. However, both of these nanoparticles still exhibit dynamic activity fluctuation in a temporal dependent route, indicating a distinct spontaneous dynamic surface restructuring process. These kinetic evidences might facilitate the development nanoparticle-based heterogeneous catalysts, particularly based on the morphology effect.
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Affiliation(s)
- Zhongju Ye
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , College of Chemistry , Nankai University , Tianjin , 300071 , China . ; http://www.xiaolhlab.cn
| | - Lin Wei
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research , Key Laboratory of Phytochemical R&D of Hunan Province , College of Chemistry and Chemical Engineering , Hunan Normal University , Changsha , 410082 , China
| | - Lehui Xiao
- State Key Laboratory of Medicinal Chemical Biology , Tianjin Key Laboratory of Biosensing and Molecular Recognition , College of Chemistry , Nankai University , Tianjin , 300071 , China . ; http://www.xiaolhlab.cn
| | - Jianfang Wang
- Department of Physics , The Chinese University of Hong Kong , Shatin , Hong Kong SAR , China
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52
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Safavi A, Shekarnoush M, Ajamian M, Zolghadr AR. High-yield synthesis, characterization, self-assembly of extremely thin gold nanosheets in sugar based deep eutectic solvents and their high electrocatalytic activity. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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53
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Zhang Z, Wu H, Yu Z, Song R, Qian K, Chen X, Tian J, Zhang W, Huang W. Site‐Resolved Cu
2
O Catalysis in the Oxidation of CO. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201814258] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhenhua Zhang
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Hong Wu
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Zongyou Yu
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Rui Song
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Xuanye Chen
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Jie Tian
- Engineering and Materials Science Experiment CenterUniversity of Science and Technology of China Hefei 230026 P. R. China
| | - Wenhua Zhang
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
- Department of Materials Science and EngineeringUniversity of Science and Technology of China Jinzhai Road 96 Hefei 230026 P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the MicroscaleKey Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education InstitutesCAS Key Laboratory of Materials for Energy Conversion and Department of Chemical PhysicsUniversity of Science and Technology of China Hefei 230026 P. R. China
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54
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Kang G, Yang M, Mattei MS, Schatz GC, Van Duyne RP. In Situ Nanoscale Redox Mapping Using Tip-Enhanced Raman Spectroscopy. NANO LETTERS 2019; 19:2106-2113. [PMID: 30763517 DOI: 10.1021/acs.nanolett.9b00313] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Electrochemical atomic force microscopy tip-enhanced Raman spectroscopy (EC-AFM-TERS) was used for the first time to spatially resolve local heterogeneity in redox behavior on an electrode surface in situ and at the nanoscale. A structurally well-defined Au(111) nanoplate located on a polycrystalline ITO substrate was studied to examine nanoscale redox contrast across the two electrode materials. By monitoring the TERS intensity of adsorbed Nile Blue (NB) molecules on the electrode surface, TERS maps were acquired with different applied potentials. The EC-TERS maps showed a spatial contrast in TERS intensity between Au and ITO. TERS line scans near the edge of a 20 nm-thick Au nanoplate demonstrated a spatial resolution of 81 nm under an applied potential of -0.1 V vs Ag/AgCl. The intensities from the TERS maps at various applied potentials followed Nernstian behavior, and a formal potential ( E0') map was constructed by fitting the TERS intensity at each pixel to the Nernst equation. Clear nanoscale spatial contrast between the Au and ITO regions was observed in the E0' map. In addition, statistical analysis of the E0' map identified a statistically significant 4 mV difference in E0' on Au vs ITO. Electrochemical heterogeneity was also evident in the E0' distribution, as a bimodal distribution was observed in E0' on polycrystalline ITO, but not on gold. A direct comparison between an AFM friction image and the E0' map resolved the electrochemical behavior of individual ITO grains with a spatial resolution of ∼40 nm. The variation in E0' was attributed to different local surface charges on the ITO grains. Such site-specific electrochemical information with nanoscale spatial and few mV voltage resolutions is not available using ensemble spectroelectrochemical methods. We expect that in situ redox mapping at the nanoscale using EC-AFM-TERS will have a crucial impact on understanding the role of nanoscale surface features in applications such as electrocatalysis.
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Affiliation(s)
- Gyeongwon Kang
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - Muwen Yang
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - Michael S Mattei
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - George C Schatz
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - Richard P Van Duyne
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
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55
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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] [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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56
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Zhang Z, Wu H, Yu Z, Song R, Qian K, Chen X, Tian J, Zhang W, Huang W. Site-Resolved Cu 2 O Catalysis in the Oxidation of CO. Angew Chem Int Ed Engl 2019; 58:4276-4280. [PMID: 30680863 DOI: 10.1002/anie.201814258] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Indexed: 11/07/2022]
Abstract
The identification of the contribution of different surface sites to the catalytic activity of a catalyst nanoparticle is one of the most challenging issues in the fundamental studies of heterogeneous catalysis. We herein demonstrate an effective strategy of using a series of uniform cubic Cu2 O nanocrystals with different sizes to identify the intrinsic activity and contributions of face and edge sites in the catalysis of CO oxidation by a combination of reaction kinetics analysis and DFT calculations. Cu2 O nanocrystals undergo in situ surface oxidation forming CuO thin films during CO oxidation. As the average size of the cubic Cu2 O nanocrystals decreases from 1029 nm to 34 nm, the dominant active sites contributing to the catalytic activity switch from face sites to edge sites. These results reveal the interplay between the intrinsic catalytic activity and the density of individual types of surface sites on a catalyst nanoparticle in determining their contributions to the catalytic activity.
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Affiliation(s)
- Zhenhua Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Hong Wu
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Zongyou Yu
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Rui Song
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Kun Qian
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Xuanye Chen
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Jie Tian
- Engineering and Materials Science Experiment Center, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Wenhua Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China.,Department of Materials Science and Engineering, University of Science and Technology of China, Jinzhai Road 96, Hefei, 230026, P. R. China
| | - Weixin Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, CAS Key Laboratory of Materials for Energy Conversion and Department of Chemical Physics, University of Science and Technology of China, Hefei, 230026, P. R. China
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57
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Gao F, He G, Yin H, Chen J, Liu Y, Lan C, Zhang S, Yang B. Titania-coated 2D gold nanoplates as nanoagents for synergistic photothermal/sonodynamic therapy in the second near-infrared window. NANOSCALE 2019; 11:2374-2384. [PMID: 30667014 DOI: 10.1039/c8nr07188h] [Citation(s) in RCA: 98] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The development of efficient nanomedicines to improve anticancer therapeutic effects is highly attractive. In this work, we firstly report titania-coated Au nanoplate (Au NPL@TiO2) heterostructures, which play dual roles as nanoagents for synergistic photothermal/sonodynamic therapy in the second near-infrared (NIR) window. On the one hand, because the controlled TiO2 shells endow the Au NPL@TiO2 nanostructures with a red shift to the NIR II region, the as-prepared Au NPL@TiO2 nanostructures possess a high photothermal conversion efficiency of 42.05% when irradiated by a 1064 nm laser and are anticipated to be very promising candidates as photothermal agents. On the other hand, the Au nanoplates (Au NPLs), as electron traps, vastly improve the generation of reactive oxygen species (ROS) by the Au NPL@TiO2 nanostructures in contrast with pure TiO2 shell nanoparticles upon activation by ultrasound (US) via a sonodynamic process. Moreover, the toxicity and therapeutic effect of the Au NPL@TiO2 nanostructures were relatively systemically evaluated in vitro. The Au NPL@TiO2 nanostructures generate a large amount of intracellular ROS and exhibit laser power density-dependent toxicity, which eventually induces apoptosis of cancer cells. Furthermore, a synergistic therapeutic effect, with a cell viability of only 20.3% upon both photothermal and sonodynamic activation, was achieved at low concentrations of the Au NPL@TiO2 nanostructures. Experiments on mice also demonstrate the superiority of the combination of PTT and SDT, with the total elimination of tumors. This work provides a way of applying two-dimensional (2D) gold nanoplate core/TiO2 shell nanostructures as novel nanoagents for advanced multifunctional anticancer therapies in the second NIR window.
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Affiliation(s)
- Fengli Gao
- Henan Provincial Key Laboratory of Nanocomposites and Applications, Institute of Nanostructured Functional Materials, Huanghe Science and Technology College, Zhengzhou, Henan 450006, China.
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58
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Ye R, Mao X, Sun X, Chen P. Analogy between Enzyme and Nanoparticle Catalysis: A Single-Molecule Perspective. ACS Catal 2019. [DOI: 10.1021/acscatal.8b04926] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Rong Ye
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Xianwen Mao
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Xiangcheng Sun
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
| | - Peng Chen
- Department of Chemistry and Chemical Biology, Cornell University, Ithaca, New York 14853, United States
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59
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Muench F, Popovitz-Biro R, Bendikov T, Feldman Y, Hecker B, Oezaslan M, Rubinstein I, Vaskevich A. Nucleation-Controlled Solution Deposition of Silver Nanoplate Architectures for Facile Derivatization and Catalytic Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1805179. [PMID: 30345718 DOI: 10.1002/adma.201805179] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/13/2018] [Indexed: 06/08/2023]
Abstract
Due to their distinctive electronic, optical, and chemical properties, metal nanoplates represent important building blocks for creating functional superstructures. Here, a general deposition method for synthesizing Ag nanoplate architectures, which is compatible with a wide substrate range (flexible, curved, or recessed; consisting of carbon, silicon, metals, oxides, or polymers) is reported. By adjusting the reaction conditions, nucleation can be triggered in the bulk solution, on seeds and by electrodeposition, allowing the production of nanoplate suspensions as well as direct surface modification with open-porous nanoplate films. The latter are fully percolated, possess a large, easily accessible surface, a defined nanostructure with {111} basal planes, and expose defect-rich, particularly reactive edges in high density, making them compelling platforms for heterogeneous catalysis, and electro- and flow chemistry. This potential is showcased by exploring the catalytic performance of the nanoplates in the reduction of carbon dioxide, 4-nitrophenol, and hydrogen peroxide, devising two types of microreactors, and by tuning the nanoplate functionality with derivatization reactions.
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Affiliation(s)
- Falk Muench
- Department of Materials and Earth Sciences, Technische Universität Darmstadt, 64287, Darmstadt, Germany
- Department of Materials and Interfaces, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Ronit Popovitz-Biro
- Chemical Research Support, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Tatyana Bendikov
- Chemical Research Support, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Yishay Feldman
- Chemical Research Support, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Burkhard Hecker
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Mehtap Oezaslan
- Department of Chemistry, Carl von Ossietzky University of Oldenburg, 26129, Oldenburg, Germany
| | - Israel Rubinstein
- Department of Materials and Interfaces, Weizmann Institute of Science, 7610001, Rehovot, Israel
| | - Alexander Vaskevich
- Department of Materials and Interfaces, Weizmann Institute of Science, 7610001, Rehovot, Israel
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60
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Cao Y, Kang SH. Single-Molecule Nanocatalysis Via the Support Effect of Gold Nanoparticles on Carbon Nanotubes. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11630] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yingying Cao
- Department of Chemistry, Graduate School; Kyung Hee University; Yongin 17104 Republic of Korea
| | - Seong Ho Kang
- Department of Chemistry, Graduate School; Kyung Hee University; Yongin 17104 Republic of Korea
- Department of Applied Chemistry and Institute of Natural Sciences; Kyung Hee University; Yongin 17104 Republic of Korea
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61
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Abstract
The past decade has witnessed an explosion in the use of super-resolution fluorescence microscopy methods in biology and other fields. Single-molecule localization microscopy (SMLM) is one of the most widespread of these methods and owes its success in large part to the ability to control the on-off state of fluorophores through various chemical, photochemical, or binding-unbinding mechanisms. We provide here a comprehensive overview of switchable fluorophores in SMLM including a detailed review of all major classes of SMLM fluorophores, and we also address strategies for labeling specimens, considerations for multichannel and live-cell imaging, potential pitfalls, and areas for future development.
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Affiliation(s)
- Honglin Li
- Department of Chemistry, University of Washington, Seattle, Washington, USA, 98195
| | - Joshua C. Vaughan
- Department of Chemistry, University of Washington, Seattle, Washington, USA, 98195
- Department of Physiology and Biophysics, University of Washington, Seattle, Washington, USA, 98195
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62
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Zou N, Chen G, Mao X, Shen H, Choudhary E, Zhou X, Chen P. Imaging Catalytic Hotspots on Single Plasmonic Nanostructures via Correlated Super-Resolution and Electron Microscopy. ACS NANO 2018; 12:5570-5579. [PMID: 29860829 DOI: 10.1021/acsnano.8b01338] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Surface-plasmon (SP) enhanced catalysis on plasmonic nanostructures brings opportunities to increase catalytic efficiency and alter catalytic selectivity. Understanding the underlying mechanism requires quantitative measurements of catalytic enhancement on these nanostructures, whose intrinsic structural heterogeneity presents experimental challenges. Using correlated super-resolution fluorescence microscopy and electron microscopy, here we report a quantitative visualization of SP-enhanced catalytic activity at the nanoscale within single plasmonic nanostructures. We focus on two Au- and Ag-based linked nanostructures that present plasmonic hotspots at nanoscale gaps. Spatially localized higher reaction rates at these gaps vs nongap regions report the SP-induced catalytic enhancements, which show direct correlations with the nanostructure geometries and local electric field enhancements. Furthermore, the catalytic enhancement scales quadratically with the local actual light intensity, attributable to hot electron involvement in the catalytic enhancement mechanism. These discoveries highlight the effectiveness of correlated super-resolution and electron microscopy in interrogating nanoscale catalytic properties.
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Affiliation(s)
- Ningmu Zou
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Guanqun Chen
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Xianwen Mao
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Hao Shen
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Eric Choudhary
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Xiaochun Zhou
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
| | - Peng Chen
- Department of Chemistry and Chemical Biology , Cornell University , Ithaca , New York 14853 , United States
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63
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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: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [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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64
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65
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Cooperative communication within and between single nanocatalysts. Nat Chem 2018; 10:607-614. [DOI: 10.1038/s41557-018-0022-y] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 02/05/2018] [Indexed: 11/08/2022]
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66
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Zhu MJ, Pan JB, Wu ZQ, Gao XY, Zhao W, Xia XH, Xu JJ, Chen HY. Electrogenerated Chemiluminescence Imaging of Electrocatalysis at a Single Au-Pt Janus Nanoparticle. Angew Chem Int Ed Engl 2018; 57:4010-4014. [DOI: 10.1002/anie.201800706] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Meng-Jiao Zhu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Jian-Bin Pan
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Zeng-Qiang Wu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Xiao-Yu Gao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
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Zhu MJ, Pan JB, Wu ZQ, Gao XY, Zhao W, Xia XH, Xu JJ, Chen HY. Electrogenerated Chemiluminescence Imaging of Electrocatalysis at a Single Au-Pt Janus Nanoparticle. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800706] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Meng-Jiao Zhu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Jian-Bin Pan
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Zeng-Qiang Wu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Xiao-Yu Gao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210023 China
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68
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Smith JG, Jain PK. Kinetics of self-assembled monolayer formation on individual nanoparticles. Phys Chem Chem Phys 2018; 18:23990-7. [PMID: 27523488 DOI: 10.1039/c6cp03915d] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Self-assembled monolayer (SAM) formation of alkanethiols on nanoparticle surfaces is an extensively studied surface reaction. But the nanoscale aspects of the rich microscopic kinetics of this reaction may remain hidden due to ensemble-averaging in colloidal samples, which is why we investigated in real-time how alkanethiol SAMs form on a single Ag nanoparticle. From single-nanoparticle trajectories obtained using in situ optical spectroscopy, the kinetics of SAM formation appears to be limited by the growth of the layer across the nanoparticle surface. A significant spread in the growth kinetics is seen between nanoparticles. The single-nanoparticle rate distributions suggest two distinct modes for SAM growth: spillover of adsorbed thiols from the initial binding sites on the nanoparticle and direct adsorption of thiol from solution. At low concentrations, wherein direct adsorption from solution is not prevalent and growth takes place primarily by adsorbate migration, the SAM formation rate was less variable from one nanoparticle to another. On the other hand, at higher thiol concentrations, when both modes of growth were operative, the population of nanoparticles with inherent variations in surface conditions and/or morphology exhibited a heterogeneous distribution of rates. These new insights into the complex dynamics of SAM formation may inform synthetic strategies for ligand passivation and functionalization of nanoparticles and models of reactive adsorption and catalysis on nanoparticles.
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Affiliation(s)
- Jeremy G Smith
- Department of Chemistry, University of Illinois, Urbana Champaign, IL 61801, USA.
| | - Prashant K Jain
- Department of Chemistry, University of Illinois, Urbana Champaign, IL 61801, USA. and Materials Research Lab, University of Illinois, Urbana Champaign, IL 61801, USA
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69
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70
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Hendriks FC, Mohammadian S, Ristanović Z, Kalirai S, Meirer F, Vogt ETC, Bruijnincx PCA, Gerritsen HC, Weckhuysen BM. Integrated Transmission Electron and Single-Molecule Fluorescence Microscopy Correlates Reactivity with Ultrastructure in a Single Catalyst Particle. Angew Chem Int Ed Engl 2018; 57:257-261. [PMID: 29119721 PMCID: PMC5765468 DOI: 10.1002/anie.201709723] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Indexed: 11/06/2022]
Abstract
Establishing structure-activity relationships in complex, hierarchically structured nanomaterials, such as fluid catalytic cracking (FCC) catalysts, requires characterization with complementary, correlated analysis techniques. An integrated setup has been developed to perform transmission electron microscopy (TEM) and single-molecule fluorescence (SMF) microscopy on such nanostructured samples. Correlated structure-reactivity information was obtained for 100 nm thin, microtomed sections of a single FCC catalyst particle using this novel SMF-TEM high-resolution combination. High reactivity in a thiophene oligomerization probe reaction correlated well with TEM-derived zeolite locations, while matrix components, such as clay and amorphous binder material, were found not to display activity. Differences in fluorescence intensity were also observed within and between distinct zeolite aggregate domains, indicating that not all zeolite domains are equally active.
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Affiliation(s)
- Frank C. Hendriks
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Sajjad Mohammadian
- Molecular BiophysicsDepartment of Soft Condensed Matter and BiophysicsScience FacultyUtrecht UniversityPrincetonplein 1, 3584CCUtrechtThe Netherlands
| | - Zoran Ristanović
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Sam Kalirai
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Florian Meirer
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Eelco T. C. Vogt
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Pieter C. A. Bruijnincx
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
| | - Hans C. Gerritsen
- Molecular BiophysicsDepartment of Soft Condensed Matter and BiophysicsScience FacultyUtrecht UniversityPrincetonplein 1, 3584CCUtrechtThe Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and CatalysisDebye Institute of Nanomaterials ScienceUtrecht UniversityUniversiteitsweg 993584CGUtrechtThe Netherlands
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71
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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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72
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Bentley CL, Unwin PR. Nanoscale electrochemical movies and synchronous topographical mapping of electrocatalytic materials. Faraday Discuss 2018; 210:365-379. [PMID: 29999075 DOI: 10.1039/c8fd00028j] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Techniques in the scanning electrochemical probe microscopy (SEPM) family have shown great promise for resolving nanoscale structure-function (e.g., catalytic activity) at complex (electro)chemical interfaces, which is a long-term aspiration in (electro)materials science. In this work, we explore how a simple meniscus imaging probe, based on an easily-fabricated, single-channeled nanopipette (inner diameter ≈ 30 nm) can be deployed in the scanning electrochemical cell microscopy (SECCM) platform as a fast, versatile and robust method for the direct, synchronous electrochemical/topographical imaging of electrocatalytic materials at the nanoscale. Topographical and voltammetric data are acquired synchronously at a spatial resolution of 50 nm to construct maps that resolve particular surface features on the sub-10 nm scale and create electrochemical activity movies composed of hundreds of potential-resolved images on the minutes timescale. Using the hydrogen evolution reaction (HER) at molybdenite (MoS2) as an exemplar system, the experimental parameters critical to achieving a robust scanning protocol (e.g., approach voltage, reference potential calibration) with high resolution (e.g., hopping distance) and optimal scan times (e.g., voltammetric scan rate, approach rate etc.) are considered and discussed. Furthermore, sub-nanoentity reactivity mapping is demonstrated with glassy carbon (GC) supported single-crystalline {111}-oriented two-dimensional Au nanocrystals (AuNCs), which exhibit uniform catalytic activity at the single-entity and sub-single entity level. The approach outlined herein signposts a future in (electro)materials science in which the activity of electroactive nanomaterials can be viewed directly and related to structure through electrochemical movies, revealing active sites unambiguously.
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Affiliation(s)
- Cameron L Bentley
- Department of Chemistry, University of Warwick, Coventry CV4 7AL, UK.
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73
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Chen G, Zou N, Chen B, Sambur JB, Choudhary E, Chen P. Bimetallic Effect of Single Nanocatalysts Visualized by Super-Resolution Catalysis Imaging. ACS CENTRAL SCIENCE 2017; 3:1189-1197. [PMID: 29202021 PMCID: PMC5704284 DOI: 10.1021/acscentsci.7b00377] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Indexed: 05/29/2023]
Abstract
Compared with their monometallic counterparts, bimetallic nanoparticles often show enhanced catalytic activity associated with the bimetallic interface. Direct quantitation of catalytic activity at the bimetallic interface is important for understanding the enhancement mechanism, but challenging experimentally. Here using single-molecule super-resolution catalysis imaging in correlation with electron microscopy, we report the first quantitative visualization of enhanced bimetallic activity within single bimetallic nanoparticles. We focus on heteronuclear bimetallic PdAu nanoparticles that present a well-defined Pd-Au bimetallic interface in catalyzing a photodriven fluorogenic disproportionation reaction. Our approach also enables a direct comparison between the bimetallic and monometallic regions within the same nanoparticle. Theoretical calculations further provide insights into the electronic nature of N-O bond activation of the reactant (resazurin) adsorbed on bimetallic sites. Subparticle activity correlation between bimetallic enhancement and monometallic activity suggests that the favorable locations to construct bimetallic sites are those monometallic sites with higher activity, leading to a strategy for making effective bimetallic nanocatalysts. The results highlight the power of super-resolution catalysis imaging in gaining insights that could help improve nanocatalysts.
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74
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Hendriks FC, Mohammadian S, Ristanović Z, Kalirai S, Meirer F, Vogt ETC, Bruijnincx PCA, Gerritsen HC, Weckhuysen BM. Integrated Transmission Electron and Single-Molecule Fluorescence Microscopy Correlates Reactivity with Ultrastructure in a Single Catalyst Particle. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709723] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Frank C. Hendriks
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Sajjad Mohammadian
- Molecular Biophysics; Department of Soft Condensed Matter and Biophysics; Science Faculty; Utrecht University; Princetonplein 1, 3584 CC Utrecht The Netherlands
| | - Zoran Ristanović
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Sam Kalirai
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Florian Meirer
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Eelco T. C. Vogt
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Pieter C. A. Bruijnincx
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
| | - Hans C. Gerritsen
- Molecular Biophysics; Department of Soft Condensed Matter and Biophysics; Science Faculty; Utrecht University; Princetonplein 1, 3584 CC Utrecht The Netherlands
| | - Bert M. Weckhuysen
- Inorganic Chemistry and Catalysis; Debye Institute of Nanomaterials Science; Utrecht University; Universiteitsweg 99 3584 CG Utrecht The Netherlands
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75
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Bentley CL, Kang M, Unwin PR. Nanoscale Structure Dynamics within Electrocatalytic Materials. J Am Chem Soc 2017; 139:16813-16821. [PMID: 29058886 DOI: 10.1021/jacs.7b09355] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Electrochemical interfaces used for sensing, (electro)catalysis, and energy storage are usually nanostructured to expose particular surface sites, but probing the intrinsic activity of these sites is often beyond current experimental capability. Herein, it is demonstrated how a simple meniscus imaging probe of just 30 nm in size can be deployed for direct electrochemical and topographical imaging of electrocatalytic materials at the nanoscale. Spatially resolved topographical and electrochemical data are collected synchronously to create topographical images in which step-height features as small as 2 nm are easily resolved and potential-resolved electrochemical activity movies composed of hundreds of images are obtained in a matter of minutes. The technique has been benchmarked by investigating the hydrogen evolution reaction on molybdenum disulfide, where it is shown that the basal plane possesses uniform activity, while surface defects (i.e., few to multilayer step edges) give rise to a morphology-dependent (i.e., height-dependent) enhancement in catalytic activity. The technique was then used to investigate the electro-oxidation of hydrazine at the surface of electrodeposited Au nanoparticles (AuNPs) supported on glassy carbon, where subnanoentity (i.e., sub-AuNP) reactivity mapping has been demonstrated. We show, for the first time, that electrochemical reaction rates vary significantly across an individual AuNP surface and that these single entities cannot be considered as uniformly active. The work herein provides a road map for future studies in electrochemical science, in which the activity of nanostructured materials can be viewed as quantitative movies, readily obtained, to reveal active sites directly and unambiguously.
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Affiliation(s)
- Cameron L Bentley
- Department of Chemistry, University of Warwick , Coventry CV4 7AL, U.K
| | - Minkyung Kang
- Department of Chemistry, University of Warwick , Coventry CV4 7AL, U.K
| | - Patrick R Unwin
- Department of Chemistry, University of Warwick , Coventry CV4 7AL, U.K
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76
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Easter QT, Blum SA. Single Turnover at Molecular Polymerization Catalysts Reveals Spatiotemporally Resolved Reactions. Angew Chem Int Ed Engl 2017; 56:13772-13775. [DOI: 10.1002/anie.201708284] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Indexed: 11/11/2022]
Affiliation(s)
| | - Suzanne A. Blum
- Department of Chemistry; University of California, Irvine; Irvine CA 92617 USA
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77
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Easter QT, Blum SA. Single Turnover at Molecular Polymerization Catalysts Reveals Spatiotemporally Resolved Reactions. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201708284] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Suzanne A. Blum
- Department of Chemistry University of California, Irvine Irvine CA 92617 USA
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78
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Eremin DB, Ananikov VP. Understanding active species in catalytic transformations: From molecular catalysis to nanoparticles, leaching, “Cocktails” of catalysts and dynamic systems. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.12.021] [Citation(s) in RCA: 243] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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79
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Van Loon J, Janssen KPF, Franklin T, Kubarev AV, Steele JA, Debroye E, Breynaert E, Martens JA, Roeffaers MBJ. Rationalizing Acid Zeolite Performance on the Nanoscale by Correlative Fluorescence and Electron Microscopy. ACS Catal 2017; 7:5234-5242. [PMID: 28824822 PMCID: PMC5557613 DOI: 10.1021/acscatal.7b01148] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 06/06/2017] [Indexed: 01/15/2023]
Abstract
The performance of zeolites as solid acid catalysts is strongly influenced by the accessibility of active sites. However, synthetic zeolites typically grow as complex aggregates of small nanocrystallites rather than perfect single crystals. The structural complexity must therefore play a decisive role in zeolite catalyst applicability. Traditional tools for the characterization of heterogeneous catalysts are unable to directly relate nanometer-scale structural properties to the corresponding catalytic performance. In this work, an innovative correlative super-resolution fluorescence and scanning electron microscope is applied, and the appropriate analysis procedures are developed to investigate the effect of small-port H-mordenite (H-MOR) morphology on the catalytic performance, along with the effects of extensive acid leaching. These correlative measurements revealed catalytic activity at the interface between intergrown H-MOR crystallites that was assumed inaccessible, without compromising the shape selective properties. Furthermore, it was found that extensive acid leaching led to an etching of the originally accessible microporous structure, rather than the formation of an extended mesoporous structure. The associated transition of small-port to large-port H-MOR therefore did not render the full catalyst particle functional for catalysis. The applied characterization technique allows a straightforward investigation of the zeolite structure-activity relationship beyond the single-particle level. We conclude that such information will ultimately lead to an accurate understanding of the relationship between the bulk scale catalyst behavior and the nanoscale structural features, enabling a rationalization of catalyst design.
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Affiliation(s)
- Jordi Van Loon
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - Kris P. F. Janssen
- Department
of Chemistry, Faculty of Sciences, KU Leuven, 3001 Heverlee, Belgium
| | - Thomas Franklin
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - Alexey V. Kubarev
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - Julian A. Steele
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - Elke Debroye
- Department
of Chemistry, Faculty of Sciences, KU Leuven, 3001 Heverlee, Belgium
| | - Eric Breynaert
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - Johan A. Martens
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
| | - Maarten B. J. Roeffaers
- Center
for Surface Chemistry and Catalysis, Faculty of Bioscience Engineering, KU Leuven, 3001 Heverlee, Belgium
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80
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Wall MA, Harmsen S, Pal S, Zhang L, Arianna G, Lombardi JR, Drain CM, Kircher MF. Surfactant-Free Shape Control of Gold Nanoparticles Enabled by Unified Theoretical Framework of Nanocrystal Synthesis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:10.1002/adma.201605622. [PMID: 28374940 PMCID: PMC5502103 DOI: 10.1002/adma.201605622] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/25/2017] [Indexed: 05/20/2023]
Abstract
Gold nanoparticles have unique properties that are highly dependent on their shape and size. Synthetic methods that enable precise control over nanoparticle morphology currently require shape-directing agents such as surfactants or polymers that force growth in a particular direction by adsorbing to specific crystal facets. These auxiliary reagents passivate the nanoparticles' surface, and thus decrease their performance in applications like catalysis and surface-enhanced Raman scattering. Here, a surfactant- and polymer-free approach to achieving high-performance gold nanoparticles is reported. A theoretical framework to elucidate the growth mechanism of nanoparticles in surfactant-free media is developed and it is applied to identify strategies for shape-controlled syntheses. Using the results of the analyses, a simple, green-chemistry synthesis of the four most commonly used morphologies: nanostars, nanospheres, nanorods, and nanoplates is designed. The nanoparticles synthesized by this method outperform analogous particles with surfactant and polymer coatings in both catalysis and surface-enhanced Raman scattering.
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Affiliation(s)
- Matthew A Wall
- Department of Radiology and Center for Molecular Imaging and Nanotechnology (CMINT), Memorial Sloan Kettering Cancer Center, NY, 10065, USA
- Department of Chemistry, Hunter College and the Graduate Center, City University of New York, NY, 10016, USA
| | - Stefan Harmsen
- Department of Radiology and Center for Molecular Imaging and Nanotechnology (CMINT), Memorial Sloan Kettering Cancer Center, NY, 10065, USA
| | - Soumik Pal
- Department of Mathematics, University of Washington, Seattle, WA, 98103, USA
| | - Lihua Zhang
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Gianluca Arianna
- Department of Chemistry, Hunter College, City University of New York, NY, 10065, USA
| | - John R Lombardi
- Department of Chemistry, City College and the Graduate Center, City University of New York, NY, 10031, USA
| | - Charles Michael Drain
- Department of Chemistry, Hunter College and the Graduate Center, City University of New York, NY, 10016, USA
| | - Moritz F Kircher
- Department of Radiology and Center for Molecular Imaging and Nanotechnology (CMINT), Memorial Sloan Kettering Cancer Center, NY, 10065, USA
- Weill Cornell Medical College of Cornell University, NY, 10065, USA
- Molecular Pharmacology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
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81
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Kitagawa K, Blum SA. Structure–Reactivity Studies of Intermediates for Mechanistic Information by Subensemble Fluorescence Microscopy. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00627] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuhiro Kitagawa
- Department of Chemistry, University of California, Irvine, California 92697−2025, United States
| | - Suzanne A. Blum
- Department of Chemistry, University of California, Irvine, California 92697−2025, United States
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82
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Du Y, He X, Zhan Y, Li S, Shen Y, Ning F, Yan L, Zhou X. Imaging the Site-Specific Activity and Kinetics on a Single Nanomaterial by Microchamber Array. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03518] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ying Du
- Department
of Chemistry, College of Sciences, Shanghai University, 99 Shangda
Road, Shanghai 200444, People’s Republic of China
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
| | - Xudong He
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
- Wuhan University, Wuhan 430071, People’s Republic of China
| | - Yulu Zhan
- Department
of Chemistry, College of Sciences, Shanghai University, 99 Shangda
Road, Shanghai 200444, People’s Republic of China
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
| | - Shuping Li
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Yangbin Shen
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
- University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Fandi Ning
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
- University of Science and Technology of China, Hefei 230026, People’s Republic of China
| | - Liuming Yan
- Department
of Chemistry, College of Sciences, Shanghai University, 99 Shangda
Road, Shanghai 200444, People’s Republic of China
| | - Xiaochun Zhou
- Division
of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
- Key Laboratory
of Nanodevices and Applications, Suzhou Institute of Nano-tech and
Nano-bionics, Chinese Academy of Sciences, Suzhou 215125, People’s Republic of China
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83
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Scaiano JC, Lanterna AE. Is Single-Molecule Fluorescence Spectroscopy Ready To Join the Organic Chemistry Toolkit? A Test Case Involving Click Chemistry. J Org Chem 2017; 82:5011-5019. [DOI: 10.1021/acs.joc.6b03010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan C. Scaiano
- Department of Chemistry and
Biomolecular Sciences and Centre for Catalysis Research and Innovation
(CCRI), University of Ottawa. 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
| | - Anabel E. Lanterna
- Department of Chemistry and
Biomolecular Sciences and Centre for Catalysis Research and Innovation
(CCRI), University of Ottawa. 10 Marie Curie, Ottawa, ON K1N 6N5, Canada
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84
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Chen T, Chen S, Song P, Zhang Y, Su H, Xu W, Zeng J. Single-Molecule Nanocatalysis Reveals Facet-Dependent Catalytic Kinetics and Dynamics of Pallidium Nanoparticles. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00087] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tao Chen
- State Key Laboratory of Electroanalytical Chemistry & Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P.R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P.R. China
| | - Sheng Chen
- Hefei National Laboratory for Physical Sciences at the
Microscale Collaborative Innovation Center of Suzhou Nano Science
and Technology, Center of Advanced Nanocatalysis (CAN-USTC) and School
of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Ping Song
- State Key Laboratory of Electroanalytical Chemistry & Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P.R. China
| | - Yuwei Zhang
- State Key Laboratory of Electroanalytical Chemistry & Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P.R. China
| | - Hongyang Su
- Hefei National Laboratory for Physical Sciences at the
Microscale Collaborative Innovation Center of Suzhou Nano Science
and Technology, Center of Advanced Nanocatalysis (CAN-USTC) and School
of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
| | - Weilin Xu
- State Key Laboratory of Electroanalytical Chemistry & Jilin Province Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P.R. China
| | - Jie Zeng
- Hefei National Laboratory for Physical Sciences at the
Microscale Collaborative Innovation Center of Suzhou Nano Science
and Technology, Center of Advanced Nanocatalysis (CAN-USTC) and School
of Chemistry and Materials Science, University of Science and Technology of China, Hefei, Anhui 230026, P.R. China
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85
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Chen T, Dong B, Chen K, Zhao F, Cheng X, Ma C, Lee S, Zhang P, Kang SH, Ha JW, Xu W, Fang N. Optical Super-Resolution Imaging of Surface Reactions. Chem Rev 2017; 117:7510-7537. [DOI: 10.1021/acs.chemrev.6b00673] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Tao Chen
- State
Key Laboratory of Electroanalytical Chemistry and Jilin Province Key
Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun 130022, P.R. China
- University of Chinese Academy of Science, Beijing, 100049, P. R. China
| | - Bin Dong
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Kuangcai Chen
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Fei Zhao
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Xiaodong Cheng
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Changbei Ma
- State Key Laboratory of Medical Genetics & School of Life Sciences, Central South University, Changsha 410013, China
| | - Seungah Lee
- Department
of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Peng Zhang
- Department
of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Seong Ho Kang
- Department
of Applied Chemistry and Institute of Natural Sciences, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Republic of Korea
| | - Ji Won Ha
- Department
of Chemistry, University of Ulsan, 93 Dahak-Ro, Nam-Gu, Ulsan 44610, Republic of Korea
| | - Weilin Xu
- State
Key Laboratory of Electroanalytical Chemistry and Jilin Province Key
Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun 130022, P.R. China
| | - Ning Fang
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
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86
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Zhang Y, Chen T, Song P, Xu W. Recent progress on single-molecule nanocatalysis based on single-molecule fluorescence microscopy. Sci Bull (Beijing) 2017; 62:290-301. [PMID: 36659357 DOI: 10.1016/j.scib.2017.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 01/04/2017] [Accepted: 01/06/2017] [Indexed: 01/21/2023]
Abstract
Understanding the heterogeneous catalytic properties of nanoparticles is of great significance for the development of high efficient nanocatalysts, but the intrinsic heterogeneities of nanocatalysts were always covered in traditional ensemble studies. This issue can be overcome if one can follow the catalysis of individual nanoparticles in real time. This paper mainly summarizes recent developments in single-molecule nanocatalysis at single particle level in Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. These developments include the revealing of catalytic kinetics of different types (plane & edge) of surface atoms on individual Pd nanocubes, the observing of in situ deactivation of individual carbon-supported Pt nanoparticles during the electrocatalytic hydrogen-oxidation reaction, and the measurement of catalytic activation energies on single nanocatalysts for both product formation process and dissociation process, etc. These studies further indicate the advantages or unique abilities of single-molecule methods in the studies of nanocatalysis or even chemical reactions.
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Affiliation(s)
- Yuwei Zhang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; Jilin Provincial Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Tao Chen
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; Jilin Provincial Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Song
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; Jilin Provincial Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Weilin Xu
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China; Jilin Provincial Key Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
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87
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Lu J, Fan Y, Howard MD, Vaughan JC, Zhang B. Single-Molecule Electrochemistry on a Porous Silica-Coated Electrode. J Am Chem Soc 2017; 139:2964-2971. [PMID: 28132499 DOI: 10.1021/jacs.6b10191] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Here we report the direct observation and quantitative analysis of single redox events on a modified indium-tin oxide (ITO) electrode. The key in the observation of single redox events are the use of a fluorogenic redox species and the nanoconfinement and hindered redox diffusion inside 3-nm-diameter silica nanochannels. A simple electrochemical process was used to grow an ultrathin silica film (∼100 nm) consisting of highly ordered parallel nanochannels exposing the electrode surface from the bottom. The electrode-supported 3-nm-diameter nanochannels temporally trap fluorescent resorufin molecules resulting in hindered molecular diffusion in the vicinity of the electrode surface. Adsorption, desorption, and heterogeneous redox events of individual resorufin molecules can be studied using total-internal reflection fluorescence (TIRF). The rate constants of adsorption and desorption processes of resorufin were characterized from single-molecule analysis to be (1.73 ± 0.08) × 10-4 cm·s-1 and 15.71 ± 0.76 s-1, respectively. The redox events of resorufin to the non-fluorescent dihydroresorufin were investigated by analyzing the change in surface population of single resorufin molecules with applied potential. The scan-rate-dependent molecular counting results (single-molecule fluorescence voltammetry) indicated a surface-controlled electrochemical kinetics of the resorufin reduction on the modified ITO electrode. This study demonstrates the great potential of mesoporous silica as a useful modification scheme for studying single redox events on a variety of transparent substrates such as ITO electrodes and gold or carbon film coated glass electrodes. The ability to electrochemically grow and transfer mesoporous silica films onto other substrates makes them an attractive material for future studies in spatial heterogeneity of electrocatalytic surfaces.
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Affiliation(s)
- Jin Lu
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
| | - Yunshan Fan
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
| | - Marco D Howard
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
| | - Joshua C Vaughan
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
| | - Bo Zhang
- Department of Chemistry, University of Washington , Seattle, Washington 98195-1700, United States
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88
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Abstract
This review describes the growing partnership between super-resolution imaging and plasmonics, by describing the various ways in which the two topics mutually benefit one another to enhance our understanding of the nanoscale world. First, localization-based super-resolution imaging strategies, where molecules are modulated between emissive and nonemissive states and their emission localized, are applied to plasmonic nanoparticle substrates, revealing the hidden shape of the nanoparticles while also mapping local electromagnetic field enhancements and reactivity patterns on their surface. However, these results must be interpreted carefully due to localization errors induced by the interaction between metallic substrates and single fluorophores. Second, plasmonic nanoparticles are explored as image contrast agents for both superlocalization and super-resolution imaging, offering benefits such as high photostability, large signal-to-noise, and distance-dependent spectral features but presenting challenges for localizing individual nanoparticles within a diffraction-limited spot. Finally, the use of plasmon-tailored excitation fields to achieve subdiffraction-limited spatial resolution is discussed, using localized surface plasmons and surface plasmon polaritons to create confined excitation volumes or image magnification to enhance spatial resolution.
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Affiliation(s)
- Katherine A Willets
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - Andrew J Wilson
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - Vignesh Sundaresan
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
| | - Padmanabh B Joshi
- Department of Chemistry, Temple University , Philadelphia, Pennsylvania 19122, United States
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89
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Wu CY, Wolf WJ, Levartovsky Y, Bechtel HA, Martin MC, Toste FD, Gross E. High-spatial-resolution mapping of catalytic reactions on single particles. Nature 2017; 541:511-515. [DOI: 10.1038/nature20795] [Citation(s) in RCA: 144] [Impact Index Per Article: 20.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 11/11/2016] [Indexed: 12/22/2022]
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90
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De Silva Indrasekara AS, Shuang B, Hollenhorst F, Hoener BS, Hoggard A, Chen S, Villarreal E, Cai YY, Kisley L, Derry PJ, Chang WS, Zubarev ER, Ringe E, Link S, Landes CF. Optimization of Spectral and Spatial Conditions to Improve Super-Resolution Imaging of Plasmonic Nanoparticles. J Phys Chem Lett 2017; 8:299-306. [PMID: 27982600 DOI: 10.1021/acs.jpclett.6b02569] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Interactions between fluorophores and plasmonic nanoparticles modify the fluorescence intensity, shape, and position of the observed emission pattern, thus inhibiting efforts to optically super-resolve plasmonic nanoparticles. Herein, we investigate the accuracy of localizing dye fluorescence as a function of the spectral and spatial separations between fluorophores (Alexa 647) and gold nanorods (NRs). The distance at which Alexa 647 interacts with NRs is varied by layer-by-layer polyelectrolyte deposition while the spectral separation is tuned by using NRs with varying localized surface plasmon resonance (LSPR) maxima. For resonantly coupled Alexa 647 and NRs, emission to the far field through the NR plasmon is highly prominent, resulting in underestimation of NR sizes. However, we demonstrate that it is possible to improve the accuracy of the emission localization when both the spectral and spatial separations between Alexa 647 and the LSPR are optimized.
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Affiliation(s)
| | - Bo Shuang
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Franziska Hollenhorst
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Benjamin S Hoener
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Anneli Hoggard
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Sishan Chen
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Eduardo Villarreal
- Department of Materials Science and Nanoengineering, Rice University , 6100 Main Street, MS-325, Houston, Texas 77005, United States
| | - Yi-Yu Cai
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Lydia Kisley
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Paul J Derry
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Wei-Shun Chang
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
| | - Eugene R Zubarev
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
- Department of Materials Science and Nanoengineering, Rice University , 6100 Main Street, MS-325, Houston, Texas 77005, United States
| | - Emilie Ringe
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
- Department of Materials Science and Nanoengineering, Rice University , 6100 Main Street, MS-325, Houston, Texas 77005, United States
| | - Stephan Link
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University , 6100 Main Street, MS-366, Houston, Texas 77005, United States
| | - Christy F Landes
- Department of Chemistry, Rice University , 6100 Main Street, MS-60, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University , 6100 Main Street, MS-366, Houston, Texas 77005, United States
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91
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Hauser M, Wojcik M, Kim D, Mahmoudi M, Li W, Xu K. Correlative Super-Resolution Microscopy: New Dimensions and New Opportunities. Chem Rev 2017; 117:7428-7456. [PMID: 28045508 DOI: 10.1021/acs.chemrev.6b00604] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Correlative microscopy, the integration of two or more microscopy techniques performed on the same sample, produces results that emphasize the strengths of each technique while offsetting their individual weaknesses. Light microscopy has historically been a central method in correlative microscopy due to its widespread availability, compatibility with hydrated and live biological samples, and excellent molecular specificity through fluorescence labeling. However, conventional light microscopy can only achieve a resolution of ∼300 nm, undercutting its advantages in correlations with higher-resolution methods. The rise of super-resolution microscopy (SRM) over the past decade has drastically improved the resolution of light microscopy to ∼10 nm, thus creating exciting new opportunities and challenges for correlative microscopy. Here we review how these challenges are addressed to effectively correlate SRM with other microscopy techniques, including light microscopy, electron microscopy, cryomicroscopy, atomic force microscopy, and various forms of spectroscopy. Though we emphasize biological studies, we also discuss the application of correlative SRM to materials characterization and single-molecule reactions. Finally, we point out current limitations and discuss possible future improvements and advances. We thus demonstrate how a correlative approach adds new dimensions of information and provides new opportunities in the fast-growing field of SRM.
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Affiliation(s)
- Meghan Hauser
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Michal Wojcik
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Doory Kim
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Morteza Mahmoudi
- Center for Nanomedicine and Department of Anesthesiology, Brigham and Women's Hospital, Harvard Medical School , Boston, Massachusetts 02115, United States
| | - Wan Li
- Department of Chemistry, University of California , Berkeley, California 94720, United States
| | - Ke Xu
- Department of Chemistry, University of California , Berkeley, California 94720, United States.,Division of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
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92
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Wang B, Durantini J, Decan MR, Nie J, Lanterna AE, Scaiano JC. From the molecule to the mole: improving heterogeneous copper catalyzed click chemistry using single molecule spectroscopy. Chem Commun (Camb) 2017; 53:328-331. [DOI: 10.1039/c6cc08905d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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93
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Ristanović Z, Kubarev AV, Hofkens J, Roeffaers MBJ, Weckhuysen BM. Single Molecule Nanospectroscopy Visualizes Proton-Transfer Processes within a Zeolite Crystal. J Am Chem Soc 2016; 138:13586-13596. [PMID: 27709925 PMCID: PMC5089756 DOI: 10.1021/jacs.6b06083] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Indexed: 12/27/2022]
Abstract
Visualizing proton-transfer processes at the nanoscale is essential for understanding the reactivity of zeolite-based catalyst materials. In this work, the Brønsted-acid-catalyzed oligomerization of styrene derivatives was used for the first time as a single molecule probe reaction to study the reactivity of individual zeolite H-ZSM-5 crystals in different zeolite framework, reactant and solvent environments. This was accomplished via the formation of distinct dimeric and trimeric fluorescent carbocations, characterized by their different photostability, as detected by single molecule fluorescence microscopy. The oligomerization kinetics turned out to be very sensitive to the reaction conditions and the presence of the local structural defects in zeolite H-ZSM-5 crystals. The remarkably photostable trimeric carbocations were found to be formed predominantly near defect-rich crystalline regions. This spectroscopic marker offers clear prospects for nanoscale quality control of zeolite-based materials. Interestingly, replacing n-heptane with 1-butanol as a solvent led to a reactivity decrease of several orders and shorter survival times of fluorescent products due to the strong chemisorption of 1-butanol onto the Brønsted acid sites. A similar effect was achieved by changing the electrophilic character of the para-substituent of the styrene moiety. Based on the measured turnover rates we have established a quantitative, single turnover approach to evaluate substituent and solvent effects on the reactivity of individual zeolite H-ZSM-5 crystals.
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Affiliation(s)
- Zoran Ristanović
- Inorganic
Chemistry and Catalysis, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Alexey V. Kubarev
- Centre for Surface Chemistry and
Catalysis and Department of Chemistry, KU Leuven, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Johan Hofkens
- Centre for Surface Chemistry and
Catalysis and Department of Chemistry, KU Leuven, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Maarten B. J. Roeffaers
- Centre for Surface Chemistry and
Catalysis and Department of Chemistry, KU Leuven, Celestijnenlaan 200 F, 3001 Heverlee, Belgium
| | - Bert M. Weckhuysen
- Inorganic
Chemistry and Catalysis, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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94
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Loring RF. Lattice model of spatial correlations in catalysis. J Chem Phys 2016; 145:134508. [DOI: 10.1063/1.4964282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Roger F. Loring
- Department of Chemistry and Chemical Biology, Baker Laboratory, Cornell University, Ithaca, New York 14853, USA
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95
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Lim K, Ropp C, Barik S, Fourkas J, Shapiro B, Waks E. Nanostructure-Induced Distortion in Single-Emitter Microscopy. NANO LETTERS 2016; 16:5415-5419. [PMID: 27552289 DOI: 10.1021/acs.nanolett.6b01708] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Single-emitter microscopy has emerged as a promising method of imaging nanostructures with nanoscale resolution. This technique uses the centroid position of an emitter's far-field radiation pattern to infer its position to a precision that is far below the diffraction limit. However, nanostructures composed of high-dielectric materials such as noble metals can distort the far-field radiation pattern. Previous work has shown that these distortions can significantly degrade the imaging of the local density of states in metallic nanowires using polarization-resolved imaging. But unlike nanowires, nanoparticles do not have a well-defined axis of symmetry, which makes polarization-resolved imaging difficult to apply. Nanoparticles also exhibit a more complex range of distortions, because in addition to introducing a high dielectric surface, they also act as efficient scatterers. Thus, the distortion effects of nanoparticles in single-emitter microscopy remains poorly understood. Here we demonstrate that metallic nanoparticles can significantly distort the accuracy of single-emitter imaging at distances exceeding 300 nm. We use a single quantum dot to probe both the magnitude and the direction of the metallic nanoparticle-induced imaging distortion and show that the diffraction spot of the quantum dot can shift by more than 35 nm. The centroid position of the emitter generally shifts away from the nanoparticle position, which is in contradiction to the conventional wisdom that the nanoparticle is a scattering object that will pull in the diffraction spot of the emitter toward its center. These results suggest that dielectric distortion of the emission pattern dominates over scattering. We also show that by monitoring the distortion of the quantum dot diffraction spot we can obtain high-resolution spatial images of the nanoparticle, providing a new method for performing highly precise, subdiffraction spatial imaging. These results provide a better understanding of the complex near-field coupling between emitters and nanostructures and open up new opportunities to perform super-resolution microscopy with higher accuracy.
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Affiliation(s)
- Kangmook Lim
- Joint Quantum Institute, University of Maryland and the National Institute of Standards and Technology , College Park, Maryland 20742, United States
| | | | - Sabyasachi Barik
- Joint Quantum Institute, University of Maryland and the National Institute of Standards and Technology , College Park, Maryland 20742, United States
| | | | | | - Edo Waks
- Joint Quantum Institute, University of Maryland and the National Institute of Standards and Technology , College Park, Maryland 20742, United States
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96
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Chen T, Zhang Y, Xu W. Single-Molecule Nanocatalysis Reveals Catalytic Activation Energy of Single Nanocatalysts. J Am Chem Soc 2016; 138:12414-21. [DOI: 10.1021/jacs.6b05600] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Tao Chen
- State
Key Laboratory of Electroanalytical Chemistry and Jilin Province Key
Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied
Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun 130022, P. R. China
- Graduate University of Chinese Academy of Science, Beijing 100049, P. R. China
| | - Yuwei Zhang
- State
Key Laboratory of Electroanalytical Chemistry and Jilin Province Key
Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied
Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun 130022, P. R. China
| | - Weilin Xu
- State
Key Laboratory of Electroanalytical Chemistry and Jilin Province Key
Laboratory of Low Carbon Chemical Power, Changchun Institute of Applied
Chemistry, Chinese Academy of Science, 5625 Renmin Street, Changchun 130022, P. R. China
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97
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He T, Du Y, Xu P, Xi S, Shen Y, Ni W, Yue B, Zhou X. Massively Screening the Temporal Spectra of Single Nanoparticles to Uncover the Mechanism of Nanosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:5049-5057. [PMID: 27362953 DOI: 10.1002/smll.201600471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 05/24/2016] [Indexed: 06/06/2023]
Abstract
Nanosynthesis is the basis of nanotechnology and its applications. It is necessary to understand the growth mechanism of nanoparticles and the functions of growth factors. An effective way to study the synthesis is at the single nanoparticle level. This study reports a single nanoparticle spectrometer, which is based on a commercial dark-field microscopy and a group of narrowband filters. This spectrometer has many advantages, such as high light transparency (35%-75%), low cost (<$1500), massive screening (≈200 nanoplates at a time), and a high time resolution (<5 s). By using this spectrometer, the galvanic replacement reaction (GRR) is studied on single Ag nanoplates in situ and in real time. The research reveals that GRR on single Ag nanoplates has three different types according to the change of peak wavelength during reaction. Such diverse reaction types can be attributed to the different relative reaction rates of GRR on the faces and edges of Ag nanoplate with different facets. Further research shows that the relative reaction rates of different facets vary a lot under different concentrations of tri-sodium citrate. This research successfully demonstrates that the new single nanoparticle spectrometer can study the growth of single nanoparticles and the effect of growth factors.
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Affiliation(s)
- Ting He
- Department of Chemistry, Shanghai University, Shanghai, 200444, China
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China
| | - Ying Du
- Department of Chemistry, Shanghai University, Shanghai, 200444, China
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China
| | - Pengyu Xu
- Department of Chemistry, Shanghai University, Shanghai, 200444, China
- i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China
| | - Shaobo Xi
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China
| | - Yangbin Shen
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Weihai Ni
- i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China
| | - Baohua Yue
- Department of Chemistry, Shanghai University, Shanghai, 200444, China
| | - Xiaochun Zhou
- Division of Advanced Nanomaterials, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215125, China.
- Key Laboratory of Nanodevices and Applications, Chinese Academy of Sciences, Suzhou, 215125, China.
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98
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Shape/size controlling syntheses, properties and applications of two-dimensional noble metal nanocrystals. Front Chem Sci Eng 2016. [DOI: 10.1007/s11705-016-1576-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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99
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Shuang B, Wang W, Shen H, Tauzin LJ, Flatebo C, Chen J, Moringo NA, Bishop LDC, Kelly KF, Landes CF. Generalized recovery algorithm for 3D super-resolution microscopy using rotating point spread functions. Sci Rep 2016; 6:30826. [PMID: 27488312 PMCID: PMC4973222 DOI: 10.1038/srep30826] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 07/11/2016] [Indexed: 01/17/2023] Open
Abstract
Super-resolution microscopy with phase masks is a promising technique for 3D imaging and tracking. Due to the complexity of the resultant point spread functions, generalized recovery algorithms are still missing. We introduce a 3D super-resolution recovery algorithm that works for a variety of phase masks generating 3D point spread functions. A fast deconvolution process generates initial guesses, which are further refined by least squares fitting. Overfitting is suppressed using a machine learning determined threshold. Preliminary results on experimental data show that our algorithm can be used to super-localize 3D adsorption events within a porous polymer film and is useful for evaluating potential phase masks. Finally, we demonstrate that parallel computation on graphics processing units can reduce the processing time required for 3D recovery. Simulations reveal that, through desktop parallelization, the ultimate limit of real-time processing is possible. Our program is the first open source recovery program for generalized 3D recovery using rotating point spread functions.
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Affiliation(s)
- Bo Shuang
- Department of Chemistry, Rice University, Houston, TX 77251, USA
| | - Wenxiao Wang
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
| | - Hao Shen
- Department of Chemistry, Rice University, Houston, TX 77251, USA
| | | | | | - Jianbo Chen
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
| | | | | | - Kevin F. Kelly
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
| | - Christy F. Landes
- Department of Chemistry, Rice University, Houston, TX 77251, USA
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
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Nasilowski M, Mahler B, Lhuillier E, Ithurria S, Dubertret B. Two-Dimensional Colloidal Nanocrystals. Chem Rev 2016; 116:10934-82. [DOI: 10.1021/acs.chemrev.6b00164] [Citation(s) in RCA: 341] [Impact Index Per Article: 42.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Michel Nasilowski
- Laboratoire de
Physique et d’Étude des Matériaux, PSL Research
University, CNRS UMR 8213, Sorbonne Universités UPMC Université
Paris 06, ESPCI Paris, 10 rue Vauquelin, 75005 Paris, France
| | - Benoit Mahler
- Institut
Lumière-Matière, CNRS UMR5306, Université Lyon
1, Université de Lyon, 69622 Villeurbanne
CEDEX, France
| | - Emmanuel Lhuillier
- Sorbonne Universités,
UPMC Université Paris 06, CNRS-UMR 7588, Institut des NanoSciences
de Paris, F-75005 Paris, France
| | - Sandrine Ithurria
- Laboratoire de
Physique et d’Étude des Matériaux, PSL Research
University, CNRS UMR 8213, Sorbonne Universités UPMC Université
Paris 06, ESPCI Paris, 10 rue Vauquelin, 75005 Paris, France
| | - Benoit Dubertret
- Laboratoire de
Physique et d’Étude des Matériaux, PSL Research
University, CNRS UMR 8213, Sorbonne Universités UPMC Université
Paris 06, ESPCI Paris, 10 rue Vauquelin, 75005 Paris, France
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