1
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Oh H, Searles EK, Chatterjee S, Jia Z, Lee SA, Link S, Landes CF. Plasmon Energy Transfer Driven by Electrochemical Tuning of Methylene Blue on Single Gold Nanorods. ACS NANO 2023; 17:18280-18289. [PMID: 37672688 DOI: 10.1021/acsnano.3c05387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Plasmonic photocatalysis has attracted interest for its potential to generate energy-efficient reactions, but ultrafast internal conversion limits efficient plasmon-based chemistry. Resonance energy transfer (RET) to surface adsorbates offers a way to outcompete internal conversion pathways and also eliminate the need for sacrificial counter-reactions. Herein, we demonstrate RET between methylene blue (MB) and gold nanorods (AuNRs) using in situ single-particle spectroelectrochemistry. During electrochemically driven reversible redox reactions between MB and leucomethylene blue (LMB), we show that the homogeneous line width is broadened when spectral overlap between AuNR scattering and absorption of MB is maximized, indicating RET. Additionally, electrochemical oxidative oligomerization of MB allowed additional dipole coupling to generate RET at lower energies. Time-dependent density functional theory-based simulated absorption provided theoretical insight into the optical properties, as MB molecules were electrochemically oligomerized. Our findings show a mechanism for driving efficient plasmon-assisted processes by RET through the change in the chemical states of surface adsorbates.
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Affiliation(s)
- Hyuncheol Oh
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Emily K Searles
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Subhojyoti Chatterjee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Zhenyang Jia
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Stephen A Lee
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Stephan Link
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Christy F Landes
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Electrical and Computer Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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2
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Jing C, Long Y. Observing electrochemistry on single plasmonic nanoparticles. ELECTROCHEMICAL SCIENCE ADVANCES 2022. [DOI: 10.1002/elsa.202100115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Chao Jing
- Department of Hydrogen Technique Chinese Academy of Sciences Shanghai Institute of Applied Physics Shanghai P. R. China
- School of Chemistry & Molecular Engineering East China University of Science and Technology Shanghai P. R. China
| | - Yi‐Tao Long
- State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical Engineering Nanjing University Nanjing P. R. China
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3
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Single particle plasmonic and electrochemical dual mode detection of amantadine. Anal Chim Acta 2022; 1209:339838. [DOI: 10.1016/j.aca.2022.339838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/19/2022] [Accepted: 04/13/2022] [Indexed: 11/19/2022]
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4
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Ummireddi AK, Sharma SK, Pala RGS. Ammonium ionic liquid cation promotes electrochemical CO2 reduction to ethylene over formate while inhibiting the hydrogen evolution on a copper electrode. Catal Sci Technol 2022. [DOI: 10.1039/d1cy01584b] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The tetraethylammonium cation promotes the CO2RR to ethylene over formate and inhibits the HER on a copper electrode.
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Affiliation(s)
- Ashok Kumar Ummireddi
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, UP-208016, India
| | | | - Raj Ganesh S. Pala
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, UP-208016, India
- Materials Science Programme, Indian Institute of Technology Kanpur, UP-208016, India
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5
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Kumar Ummireddi A, Kumar Sharma S, Ganesh S. Pala R. Influence of Tetraethylammonium Cation on Electrochemical CO2 Reduction over Cu, Ag, Ni, and Fe Surfaces. J Catal 2022. [DOI: 10.1016/j.jcat.2022.01.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Zhou J, He W, Liu H, Huang CZ. Energy Flow during the Plasmon Resonance-Driven Photocatalytic Reactions on Single Nanoparticles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c04919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jun Zhou
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Computer and Information Science, Southwest University, Chongqing 400715, P.R. China
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P.R. China
| | - Wei He
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P.R. China
| | - Hui Liu
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P.R. China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P.R. China
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7
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Kim JH, Cha S, Kim Y, Son J, Park JE, Oh JW, Nam JM. Nontrivial, Unconventional Electrochromic Behaviors of Plasmonic Nanocubes. NANO LETTERS 2021; 21:7512-7518. [PMID: 34491741 DOI: 10.1021/acs.nanolett.1c01639] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Plasmonic electrochromism, a change in the localized surface plasmon resonance (LSPR) with an applied electric potential, has been attracting increasing attention for the development of spectroscopic tools or optoelectronic systems. There is a consensus on the mechanism of plasmonic electrochromism based on the classical capacitor and the Drude model. However, the electrochromic behaviors of metallic nanoparticles in narrow optical windows have been demonstrated only with small monotonic LSPR shifts, which limits the use of the electrochromism. Here, we observed three distinct electrochromic behaviors of gold nanocubes with a wide potential range through in situ dark-field electrospectroscopy. Interestingly, the nanocubes show a faster frequency shift under the highly negative potential, and this opens the possibility of largely tunable electrochromic LSPR shifts. The reversibility of the electrochemical switching with these cubes are also shown. We attribute this unexpected change beyond classical understandings to the material-specific quantum mechanical electronic structures of the plasmonic materials.
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Affiliation(s)
- Jae-Ho Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Seungsang Cha
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Yoonhee Kim
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Jiwoong Son
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Jeong-Eun Park
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Jeong-Wook Oh
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
| | - Jwa-Min Nam
- Department of Chemistry, Seoul National University, Seoul 08826, South Korea
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8
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Pan S, Li X, Yadav J. Single-nanoparticle spectroelectrochemistry studies enabled by localized surface plasmon resonance. Phys Chem Chem Phys 2021; 23:19120-19129. [PMID: 34524292 DOI: 10.1039/d1cp02801d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
This review describes recent progress of spectroelectrochemistry (SEC) analysis of single metallic nanoparticles (NPs) which have strong surface plasmon resonance properties. Dark-field scattering (DFS), photoluminescence (PL), and electrogenerated chemiluminescence (ECL) are three commonly used optical methods to detect individual NPs and investigate their local redox activities in an electrochemical cell. These SEC methods are highly dependent on a strong light-scattering cross-section of plasmonic metals and their electrocatalytic characteristics. The surface chemistry and the catalyzed reaction mechanism of single NPs and their chemical transformations can be studied using these SEC methods. Recent progress in the experimental design and fundamental understanding of single-NP electrochemistry and catalyzed reactions using DFS, PL, and ECL is described along with selected examples from recent publications in this field. Perspectives on the challenges and possible solutions for these SEC methods and potential new directions are discussed.
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Affiliation(s)
- Shanlin Pan
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Xiao Li
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
| | - Jeetika Yadav
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487, USA.
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9
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Wang H, Xu CH, Zhao W, Chen HY, Xu JJ. Alkaline Phosphatase-Triggered Etching of Au@FeOOH Nanoparticles for Enzyme Level Assay under Dark-Field Microscopy. Anal Chem 2021; 93:10727-10734. [PMID: 34297532 DOI: 10.1021/acs.analchem.1c02761] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In clinical diagnosis, the level of biological enzymes in serum has been generally regarded as markers of human diseases. In this work, a kind of simple and sensitive plasmonic probe (indicated as Au@FeOOH) has been synthesized with the guidance of plasmonic imaging and subsequently developed for the alkaline phosphatase (ALP) level detection under dark-field microscopy (DFM). As a kind of hydrolysis enzyme, ALP can promote the hydrolysis of l-ascorbic acid 2-phosphate to ascorbic acid (AA). AA further acts as a strong reduction reagent for the decomposition of the FeOOH shell, which results in a blue shift of localized surface plasmon resonance spectra and an obvious color change under DFM. RGB analyses show that using a ΔR/G value instead of scattering wavelength or R/G value as the analytical signal, the deviation attributed to the size distribution of the initial Au NPs is greatly suppressed, and a linear range from 0.2 to 6.0 U/L (R2 = 0.99) and a limit of detection of 0.06 U/L are acquired with various concentrations of ALP during the detection. Besides, this approach exhibits excellent selectivity in complex biological serum samples, which is expected to be applied for the early diagnosis of clinical diseases by monitoring various biomarkers in the future.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Cong-Hui Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.,Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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10
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Kim Y, Cha S, Kim JH, Oh JW, Nam JM. Electrochromic response and control of plasmonic metal nanoparticles. NANOSCALE 2021; 13:9541-9552. [PMID: 34019053 DOI: 10.1039/d1nr01055g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Plasmonic electrochromism, the dependence of the colour of plasmonic materials on the applied electrical potential, has been under the spotlight recently as a key element for the development of optoelectronic devices and spectroscopic tools. In this review, we focus on the electrochromic behaviour and underlying mechanistic principles of plasmonic metal nanoparticles, whose localised surface plasmon resonance occurs in the visible part of the electromagnetic spectrum, and present a comprehensive review on the recent progress in understanding and controlling plasmonic electrochromism. The mechanisms underlying the electrochromism of plasmonic metal nanoparticles could be divided into four categories, based on the origin of the LSPR shift: (1) capacitive charging model accompanying variation in the Fermi level, (2) faradaic reactions, (3) non-faradaic reactions, and (4) electrochemically active functional molecule-mediated mechanism. We also review recent attempts to synchronise the simulation with the experimental results and the strategies to overcome the intrinsically diminutive LSPR change of the plasmonic metal nanoparticles. A better understanding and controllability of plasmonic electrochromism provides new insights into and means of the connection between photoelectrochemistry and plasmonics as well as future directions for producing advanced optoelectronic materials and devices.
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Affiliation(s)
- Yoonhee Kim
- Department of Chemistry, Seoul National University, Seoul 151-747, South Korea.
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11
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Qu LL, Ying YL, Yu RJ, Long YT. In situ food-borne pathogen sensors in a nanoconfined space by surface enhanced Raman scattering. Mikrochim Acta 2021; 188:201. [PMID: 34041602 PMCID: PMC8154335 DOI: 10.1007/s00604-021-04864-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 05/13/2021] [Indexed: 01/04/2023]
Abstract
The incidence of disease arising from food-borne pathogens is increasing continuously and has become a global public health problem. Rapid and accurate identification of food-borne pathogens is essential for adopting disease intervention strategies and controlling the spread of epidemics. Surface-enhanced Raman spectroscopy (SERS) has attracted increasing interest due to the attractive features including simplicity, rapid measurement, and high sensitivity. It can be used for rapid in situ sensing of single and multicomponent samples within the nanostructure-based confined space by providing molecular fingerprint information and has been demonstrated to be an effective detection strategy for pathogens. This article aims to review the application of SERS to the rapid sensing of food-borne pathogens in food matrices. The mechanisms and advantages of SERS, and detection strategies are briefly discussed. The latest progress on the use of SERS for rapid detection of food-borne bacteria and viruses is considered, including both the labeled and label-free detection strategies. In closing, according to the current situation regarding detection of food-borne pathogens, the review highlights the challenges faced by SERS and the prospects for new applications in food safety. In this review, the advances on the SERS detection of pathogens over the past decades have been reviewed, focusing on the improvements in sensitivity, reproducibility, specificity, and the performance of the SERS-based assay in complex analytical scenarios. ![]()
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Affiliation(s)
- Lu-Lu Qu
- School of Chemistry and Materials Science, Jiangsu Normal University, 221116, Xuzhou, People's Republic of China.
| | - Yi-Lun Ying
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Ru-Jia Yu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, People's Republic of China.
| | - Yi-Tao Long
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, People's Republic of China
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12
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Orientation-independent reaction activity monitoring with single particle and data analytics. J Colloid Interface Sci 2021; 590:458-466. [PMID: 33561595 DOI: 10.1016/j.jcis.2021.01.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/09/2021] [Accepted: 01/25/2021] [Indexed: 11/20/2022]
Abstract
Single-particle analysis is the most powerful method to obtain accurate local information for understanding and monitoring chemical reactions. However, investigations about obtaining comprehensive information at the single-particle level to overcome individual errors and sampling randomness have not been reported to date. Plasmonic nanorods, which have excellent anisotropic optical and chemical properties, make us in situ acquisition of conformation and dynamics of the biological information. On the basis of their anisotropic optical properties of the plasmonic nanorods such as Au nanorods (AuNRs) and data analytics, herein we developed a high-throughput resonance scattering imaging method of AuNRs under dark-field microscopy (DFM) to monitor orientation-independent reaction activity of AuNRs. Data analytics are introduced to determine a large number of AuNRs orientation obtained from a series of polarized DFM images, allowing us to real-time monitor reaction activity of AuNRs at all orientations, and also makes it possible to study the global and local reaction processes of AuNRs at single-particle level. Our method is expected to provide a new strategy for analytical study and single-particle sensing in chemistry.
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13
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Song MK, Chen SX, Hu PP, Huang CZ, Zhou J. Automated Plasmonic Resonance Scattering Imaging Analysis via Deep Learning. Anal Chem 2021; 93:2619-2626. [PMID: 33427440 DOI: 10.1021/acs.analchem.0c04763] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Plasmonic nanoparticles, which have excellent local surface plasmon resonance (LSPR) optical and chemical properties, have been widely used in biology, chemistry, and photonics. The single-particle light scattering dark-field microscopy (DFM) imaging technique based on a color-coded analytical method is a promising approach for high-throughput plasmonic nanoparticle scatterometry. Due to the interference of high noise levels, accurately extracting real scattering light of plasmonic nanoparticles in living cells is still a challenging task, which hinders its application for intracellular analysis. Herein, we propose an automatic and high-throughput LSPR scatterometry technique using a U-Net convolutional deep learning neural network. We use the deep neural networks to recognize the scattering light of nanoparticles from background interference signals in living cells, which have a dynamic and complicated environment, and construct a DFM image semantic analytical model based on the U-Net convolutional neural network. Compared with traditional methods, this method can achieve higher accuracy, stronger generalization ability, and robustness. As a proof of concept, the change of intracellular cytochrome c in MCF-7 cells under UV light-induced apoptosis was monitored through the fast and high-throughput analysis of the plasmonic nanoparticle scattering light, providing a new strategy for scatterometry study and imaging analysis in chemistry.
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Affiliation(s)
- Ming Ke Song
- A Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Computer and Information Science, Southwest University, Chongqing 400715, P. R. China
| | - Shan Xiong Chen
- A Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Computer and Information Science, Southwest University, Chongqing 400715, P. R. China
| | - Ping Ping Hu
- School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, P. R. China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
| | - Jun Zhou
- A Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Computer and Information Science, Southwest University, Chongqing 400715, P. R. China.,Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, P. R. China
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14
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Dou S, Xu H, Zhao J, Zhang K, Li N, Lin Y, Pan L, Li Y. Bioinspired Microstructured Materials for Optical and Thermal Regulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2000697. [PMID: 32686250 DOI: 10.1002/adma.202000697] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/28/2020] [Indexed: 06/11/2023]
Abstract
Precise optical and thermal regulatory systems are found in nature, specifically in the microstructures on organisms' surfaces. In fact, the interaction between light and matter through these microstructures is of great significance to the evolution and survival of organisms. Furthermore, the optical regulation by these biological microstructures is engineered owing to natural selection. Herein, the role that microstructures play in enhancing optical performance or creating new optical properties in nature is summarized, with a focus on the regulation mechanisms of the solar and infrared spectra emanating from the microstructures and their role in the field of thermal radiation. The causes of the unique optical phenomena are discussed, focusing on prevailing characteristics such as high absorption, high transmission, adjustable reflection, adjustable absorption, and dynamic infrared radiative design. On this basis, the comprehensive control performance of light and heat integrated by this bioinspired microstructure is introduced in detail and a solution strategy for the development of low-energy, environmentally friendly, intelligent thermal control instruments is discussed. In order to develop such an instrument, a microstructural design foundation is provided.
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Affiliation(s)
- Shuliang Dou
- National Key Laboratory of Science and Technology on Advanced Composites, Harbin Institute of Technology, Harbin, 150006, China
| | - Hongbo Xu
- School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Jiupeng Zhao
- School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Ke Zhang
- School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Na Li
- School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Yipeng Lin
- School of Chemical Engineering and Technology, Harbin Institute of Technology, Harbin, 150001, China
| | - Lei Pan
- National Key Laboratory of Science and Technology on Advanced Composites, Harbin Institute of Technology, Harbin, 150006, China
| | - Yao Li
- Center for Composite Materials and Structure, Harbin Institute of Technology, Harbin, 150001, China
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15
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Ma J, Gao MX, Zuo H, Li YF, Gao PF, Huang CZ. Distance-Dependence Study of Plasmon Resonance Energy Transfer with DNA Spacers. Anal Chem 2020; 92:14278-14283. [DOI: 10.1021/acs.analchem.0c03991] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jun Ma
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Ming Xuan Gao
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Chemistry and Chemical Engineering, Chongqing 400715, China
| | - Hua Zuo
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Yuan Fang Li
- Key Laboratory of Luminescent and Real-Time Analytical System (Southwest University), Chongqing Science and Technology Bureau, College of Chemistry and Chemical Engineering, Chongqing 400715, China
| | - Peng Fei Gao
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Cheng Zhi Huang
- Key Laboratory of Luminescence Analysis and Molecular Sensing (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
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16
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Wang H, Zhao W, Zhao Y, Xu CH, Xu JJ, Chen HY. Real-Time Tracking the Electrochemical Synthesis of Au@Metal Core–Shell Nanoparticles toward Photo Enhanced Methanol Oxidation. Anal Chem 2020; 92:14006-14011. [DOI: 10.1021/acs.analchem.0c02913] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Wei Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Yang Zhao
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Cong-Hui Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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17
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Lv MM, Liu JW, Yu RQ, Jiang JH. A bipedal DNA nanowalker fueled by catalytic assembly for imaging of base-excision repairing in living cells. Chem Sci 2020; 11:10361-10366. [PMID: 34123179 PMCID: PMC8162356 DOI: 10.1039/d0sc03698f] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 08/13/2020] [Indexed: 11/29/2022] Open
Abstract
DNA nanowalkers moving progressively along a prescribed DNA track are useful tools in biosensing, molecular theranostics and biosynthesis. However, stochastic DNA nanowalkers that can perform in living cells have been largely unexplored. We report the development of a novel stochastic bipedal DNA walker that, for the first time, realizes direct intracellular base excision repair (BER) fluorescence activation imaging. In our design, the bipedal walker DNA was generated by BER-related human apurinic/apyrimidinic endonuclease 1 (APE1)-mediated cleavage of DNA sequences at an abasic site in the intracellular environment, and it autonomously travelled on spherical nucleic acid (SNA) surfaces via catalyzed hairpin assembly (CHA). Our nanomachine outperforms the conventional single leg-based DNA walker with an improved sensitivity, kinetics and walking steps. Moreover, in contrast to the single leg-based DNA walker, the bipedal DNA walker is capable of monitoring the fluorescence signal of reduced APE1 activity, thus indicating amplified intracellular imaging. This bipedal DNA-propelled DNA walker presents a simple and modular amplification mechanism for intracellular biomarkers of interest, providing an invaluable platform for low-abundance biomarker discovery leading to the accurate identification and effective treatment of cancers.
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Affiliation(s)
- Meng-Mei Lv
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China +86-731-88822872 +86-731-88822577
| | - Jin-Wen Liu
- The First Affiliated Hospital of Guangxi Medical University, Guangxi Collaborative Innovation Center for Biomedicine, School of Preclinical Medicine, Center for Translational Medicine, Guangxi Medical University Nanning 530021 P.R. China
| | - Ru-Qin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China +86-731-88822872 +86-731-88822577
| | - Jian-Hui Jiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University Changsha 410082 P. R. China +86-731-88822872 +86-731-88822577
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18
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Ishigaki Y, Harimoto T, Sugimoto K, Wu L, Zeng W, Ye D, Suzuki T. Hexaarylbutadiene: A Versatile Scaffold with Tunable Redox Properties towards Organic Near-Infrared Electrochromic Material. Chem Asian J 2020; 15:1147-1155. [PMID: 32030909 DOI: 10.1002/asia.201901816] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 01/20/2020] [Indexed: 12/21/2022]
Abstract
When the 1,1,4,4-tetraanilinobutadiene skeleton is attached with two halogenated aryl units at the 2,3-positions, they undergo facile two-electron oxidation to give stable dicationic dyes which exhibit a near-infrared (NIR) absorption whereas the neutral dienes show only pale color. Therefore, a distinct electrochromic response with an absorption change in the NIR region is achieved, which is attracting considerable recent attention from the viewpoint of bioimaging. Herein, we demonstrate that the redox potentials of the 1,1,4,4-tetraanilinobutadiene can be precisely controlled by the donating properties of the amino group on the aniline unit as well as the number of halogen atoms on the aryl units at 2,3-positions on the butadiene. In contrast, the NIR absorption bands mainly depend on the number of halogen atoms irrespective to the donating properties of aniline unit. Thus, the hexaarylbutadiene skeleton is proven to be a versatile scaffold to develop less-explored organic NIR electrochromic materials, whose redox and spectroscopic properties can be finely tuned by modifying/attaching the proper substituents.
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Affiliation(s)
- Yusuke Ishigaki
- Department of Chemisry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Takashi Harimoto
- Department of Chemisry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Keisuke Sugimoto
- Department of Chemisry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
| | - Luyan Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Wenhui Zeng
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Takanori Suzuki
- Department of Chemisry, Faculty of Science, Hokkaido University, N10 W8, North-ward, Sapporo, 060-0810, Japan
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19
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20
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Li Y, Liu Q, Chen Z. Optical aptasensing of mercury(II) by using salt-induced and exonuclease I-induced gold nanoparticle aggregation under dark-field microscope observation. Mikrochim Acta 2019; 186:729. [PMID: 31659462 DOI: 10.1007/s00604-019-3876-9] [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: 06/26/2019] [Accepted: 09/26/2019] [Indexed: 02/03/2023]
Abstract
An optical method for determination of Hg(II) is described that exploits the aggregation of gold nanoparticles (AuNPs) under dark-field microscope (DFM) observation. This assay is based on the use of a Hg(II)-specific aptamer, AuNPs modified with complementary DNA strands, and exonuclease I (Exo I). In the absence of Hg(II), the added dsDNA prevents salt-induced aggregation of the green-colored AuNPs. If Hg(II) is added, the aptamer will capture it to form T-Hg(II)-T pairs, and the complementary strand is digested by Exo I. On addition of a solution of NaCl, the AuNPs will aggregate. This is accompanied by a color change from green to orange/red) in the dark-field image. By calculating the intensity of the orange/red dots in the dark-field image, concentration of Hg(II) can be accurately determined. The limit of detection is as low as 36 fM, and response is a linear in the 83 fM to 8.3 μM Hg(II) concentration range. Graphical abstract Schematic representation of a colorimetric assay for Hg(II) based on the use of a mercury(II)-specific aptamer, gold nanoparticles modified with complementary DNA strands, and exonuclease I.
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Affiliation(s)
- Yanan Li
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Qingyun Liu
- College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao, 266590, China
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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21
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Optical methods for studying local electrochemical reactions with spatial resolution: A critical review. Anal Chim Acta 2019; 1074:1-15. [DOI: 10.1016/j.aca.2019.02.053] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 11/19/2022]
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22
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Zhang W, Wu H, Zhang R, Fang X, Xu W. Structure and effective charge characterization of proteins by a mobility capillary electrophoresis based method. Chem Sci 2019; 10:7779-7787. [PMID: 31588326 PMCID: PMC6761862 DOI: 10.1039/c9sc02039j] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/02/2019] [Indexed: 12/18/2022] Open
Abstract
Measuring the conformations and effective charges of proteins in solution is critical for investigating protein bioactivity, but their rapid analysis remains a challenging problem. Here we report a mobility capillary electrophoresis (MCE) based method for the rapid analysis of protein stereo-structures and effective charges in different solution environments. With the capability of mixture separation, MCE measures the hydrodynamic radius of a protein through Taylor dispersion analysis and its effective charge through ion mobility analysis. The experimental results acquired from MCE are then utilized to restrain molecular dynamics simulations, so that the most probable conformation of that protein can be obtained. As proof-of-concept demonstrations, the charge states and structures of five proteins were analyzed under close to native environments. The conformation transitions and charge state variations of bovine serum albumin and lysozyme under different pH conditions were also investigated. This method is promising for high-throughput protein analysis, which could potentially be coupled with mass spectrometry for investigating protein stereo-structures and functions in top-down proteomics.
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Affiliation(s)
- Wenjing Zhang
- School of Life Science , Beijing Institute of Technology , No. 5 South Zhongguancun Street, Haidian Dist , Beijing , China .
| | - Haimei Wu
- School of Life Science , Beijing Institute of Technology , No. 5 South Zhongguancun Street, Haidian Dist , Beijing , China .
| | - Rongkai Zhang
- School of Life Science , Beijing Institute of Technology , No. 5 South Zhongguancun Street, Haidian Dist , Beijing , China .
| | - Xiang Fang
- National Institute of Metrology , No. 18, Bei San Huan Dong Lu, Chaoyang Dist , Beijing , China
| | - Wei Xu
- School of Life Science , Beijing Institute of Technology , No. 5 South Zhongguancun Street, Haidian Dist , Beijing , China .
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23
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Wang H, Zhao W, Xu CH, Chen HY, Xu JJ. Electrochemical synthesis of Au@semiconductor core-shell nanocrystals guided by single particle plasmonic imaging. Chem Sci 2019; 10:9308-9314. [PMID: 32110293 PMCID: PMC7006628 DOI: 10.1039/c9sc02804h] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Accepted: 08/12/2019] [Indexed: 11/21/2022] Open
Abstract
Plasmonic photocatalysts have opened up a new direction in utilization of visible light and promoting photocatalytic efficiency. An electrochemical deposition method is reported to synthesise metal@semiconductor (M@SC) core-shell nanocrystals. Due to the strong affinity of Au atoms to S2- and Se2- reduced at negative potential, CdS, CdSe and ZnS were selectively deposited on the surface of the Au core to form a uniform shell with a clear metal/semiconductor interface, which conquered the barrier caused by the large lattice mismatch between the two components. Plasmonic effects increased the photocatalytic performance, as well as provided a chance to in situ monitor the surface nucleation and growth. The structure formation process could be observed under dark-field microscopy (DFM) in real-time and precisely controlled via the scattering color, intensity and wavelength. The proof-of-concept strategy combines the electrochemical deposition and plasmonic imaging, which provides a universal approach in controllable synthesis of core-shell heterostructures, and leads to the improvement of plasmonic photocatalysts.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Analytical Chemistry for Life Science , 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 , Collaborative Innovation Center of Chemistry for Life Sciences , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China . ;
| | - Cong-Hui Xu
- State Key Laboratory of Analytical Chemistry for Life Science , 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 , 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 , Collaborative Innovation Center of Chemistry for Life Sciences , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China . ;
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24
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Wang J, Zhang HZ, Liu JJ, Yuan D, Li RS, Huang CZ. Time-resolved visual detection of heparin by accelerated etching of gold nanorods. Analyst 2019; 143:824-828. [PMID: 29363687 DOI: 10.1039/c7an01923h] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Plasmonic gold nanorods are promising and sensitive light scattering probes, which can reach the single particle level. Herein, we present the light scattering properties of gold nanorods for time-resolved visual detection of heparin based on the rapid etching of gold nanorods under dark-field microscopy.
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Affiliation(s)
- Jian Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
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25
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Liu X, Zhang Y, Liang A, Ding H, Gai H. Plasmonic resonance energy transfer from a Au nanosphere to quantum dots at a single particle level and its homogenous immunoassay. Chem Commun (Camb) 2019; 55:11442-11445. [DOI: 10.1039/c9cc05548g] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
PRET from a AuNS to a QD is discovered at a single particle level, and then is used to develop ultra-sensitive homogenous immunoassays.
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Affiliation(s)
- Xiaojun Liu
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Yusu Zhang
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Aiye Liang
- Department of Physical Sciences
- Charleston Southern University
- North Charleston
- USA
| | - Hongwei Ding
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
| | - Hongwei Gai
- School of Chemistry and Materials Science
- Jiangsu Normal University
- Xuzhou
- China
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26
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Qiu K, Fato TP, Wang PY, Long YT. Real-time monitoring of electrochemical reactions on single nanoparticles by dark-field and Raman microscopy. Dalton Trans 2019; 48:3809-3814. [DOI: 10.1039/c8dt05141k] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Dark-field and Raman microscopy to probe the single NP electrochemistry in real time.
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Affiliation(s)
- Kaipei Qiu
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Tano Patrice Fato
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Pei-Yao Wang
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yi-Tao Long
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
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27
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Wu L, Sun Y, Sugimoto K, Luo Z, Ishigaki Y, Pu K, Suzuki T, Chen HY, Ye D. Engineering of Electrochromic Materials as Activatable Probes for Molecular Imaging and Photodynamic Therapy. J Am Chem Soc 2018; 140:16340-16352. [PMID: 30384600 DOI: 10.1021/jacs.8b10176] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Electrochromic materials (EMs) are widely used color-switchable materials, but their applications as stimuli-responsive biomaterials to monitor and control biological processes remain unexplored. This study reports the engineering of an organic π-electron structure-based EM (dicationic 1,1,4,4-tetraarylbutadiene, 12+) as a unique hydrogen sulfide (H2S)-responsive chromophore amenable to build H2S-activatable fluorescent probes (12+-semiconducting polymer nanoparticles, 12+-SNPs) for in vivo H2S detection. We demonstrate that EM 12+, with a strong absorption (500-850 nm), efficiently quenches the fluorescence (580, 700, or 830 nm) of different fluorophores within 12+-SNPs, while the selective conversion into colorless diene 2 via H2S-mediated two-electron reduction significantly recovers fluorescence, allowing for non-invasive imaging of hepatic and tumor H2S in mice in real time. Strikingly, EM 12+ is further applied to design a near-infrared photosensitizer with tumor-targeting and H2S-activatable ability for effective photodynamic therapy (PDT) of H2S-related tumors in mice. This study demonstrates promise for applying EMs to build activatable probes for molecular imaging of H2S and selective PDT of tumors, which may lead to the development of new EMs capable of detecting and regulating essential biological processes in vivo.
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Affiliation(s)
- Luyan Wu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Yidan Sun
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Keisuke Sugimoto
- Department of Chemistry, Faculty of Science , Hokkaido University , N10 W8, North-ward , Sapporo 060-0810 , Japan
| | - Zhiliang Luo
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Yusuke Ishigaki
- Department of Chemistry, Faculty of Science , Hokkaido University , N10 W8, North-ward , Sapporo 060-0810 , Japan
| | - Kanyi Pu
- School of Chemical and Biomedical Engineering Nanyang Technological University , 637457 , Singapore
| | - Takanori Suzuki
- Department of Chemistry, Faculty of Science , Hokkaido University , N10 W8, North-ward , Sapporo 060-0810 , Japan
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China
| | - Deju Ye
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China.,Research Center for Environmental Nanotechnology (ReCent) , Nanjing University , Nanjing 210023 , China
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28
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Zhou J, Yang T, He W, Pan ZY, Huang CZ. A galvanic exchange process visualized on single silver nanoparticles via dark-field microscopy imaging. NANOSCALE 2018; 10:12805-12812. [PMID: 29947404 DOI: 10.1039/c8nr01879k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The study of the galvanic exchange (GE) mechanism is beneficial for designing and developing new bimetallic nanocrystal structures with excellent bifunctional catalytic properties. Herein, we have visually demonstrated a GE process by real-time monitoring of the reaction between silver nanoparticles (AgNPs) and Au3+ at the single nanoparticle level using light scattering dark-field microscopy imaging. The localized surface plasmon resonance (LSPR) scattering spectral shifts of the AgNPs which reveal the Ag removal rate and Au deposition rate on the surface of the AgNPs can be observed. Furthermore, a pixel meta three color channel method has been introduced for analyzing the scattering light color changes of plasmonic particles to reveal the kinetics of the atomic deposition process on a single AgNP during GE, thus making the reaction kinetics of the GE process directly observable. Therefore, this study provides an efficient and promising approach for understanding the GE mechanism and exploiting its reaction kinetics.
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Affiliation(s)
- Jun Zhou
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
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29
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Li T, Wu X, Tao G, Yin H, Zhang J, Liu F, Li N. A simple and non-amplification platform for femtomolar DNA and microRNA detection by combining automatic gold nanoparticle enumeration with target-induced strand-displacement. Biosens Bioelectron 2018; 105:137-142. [DOI: 10.1016/j.bios.2018.01.034] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/15/2018] [Accepted: 01/16/2018] [Indexed: 12/11/2022]
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30
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Pang J, Liu HL, Li J, Zhai TT, Wang K, Xia XH. Structural Change of a Single Ag Nanoparticle Observed by Dark-field Microspectroscopy. Chemphyschem 2018; 19:954-958. [PMID: 29383796 DOI: 10.1002/cphc.201701148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 01/30/2018] [Indexed: 12/14/2022]
Abstract
Silver nanoparticles (AgNPs) have been widely used as photocatalysts and nanosensors. Observation of the spectroscopy of a single AgNP greatly helps us understand the catalytic characteristics and morphology change of the AgNP during reactions. In the present study, AgNPs physically adsorbed on indium tin oxide (ITO) conductive glass were electrochemically reduced and oxidized, and the plasmonic resonance Rayleigh scattering (PRRS) spectrum of an individual AgNP was observed under a dark-field microscopy (DFM) equipped with a spectrometer. The electrochemical oxidization of the AgNP under constant potential caused a redshift of the PRRS peak for 30±5 nm. However, electrochemical reduction of the AgNP could not make the PRRS peak completely shift back to the initial position. In situ AFM and SEM characterization confirmed that very small Ag fragments (<10 nm) formed around the AgNP core during electrochemical oxidization. Results showed that dark-field microspectroscopy could be used as a sensitive tool for estimating the morphology/structural changes of nanoparticles that can hardly be observed through the cyclic voltammograms of multiple AgNPs.
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Affiliation(s)
- Jie Pang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Hai-Ling Liu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jian Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Ting-Ting Zhai
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Kang Wang
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry & Chemical Engineering, Nanjing University, Nanjing, 210023, China
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31
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Liu T, Li M, Wang Y, Fang Y, Wang W. Electrochemical impedance spectroscopy of single Au nanorods. Chem Sci 2018; 9:4424-4429. [PMID: 29896383 PMCID: PMC5956977 DOI: 10.1039/c8sc00983j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 04/02/2018] [Indexed: 12/20/2022] Open
Abstract
Monochromatic dark-field microscopy coupled with high-frequency potential modulation leads to non-faradaic electrochemical impedance spectroscopy of single Au nanorods.
We propose monochromatic dark-field imaging microscopy (DFM) to measure the non-faradaic electrochemical impedance spectroscopy (EIS) of single Au nanorods (AuNRs). DFM was utilized to monitor the plasmonic scattering of monochromatic incident light by surface-immobilized individual AuNRs. When modulating the surface potential at a certain frequency, non-faradaic charging and discharging of AuNRs altered their electron density, leading to periodical fluctuations in the scattering intensity. Analysis of the amplitude and phase of the optical intensity fluctuation as a function of modulation frequency resulted in the EIS of single AuNRs. High-frequency (>100 Hz) modulation allowed us to differentiate the intrinsic charging effect from other contributions such as the periodic migration and accumulation of counterions in the surrounding medium, because the latter occurred at a longer timescale. As a result, single nanoparticle EIS led to the surface capacitance of single AuNRs being closer to the theoretical value. Since interfacial capacitance has been proven sensitive to molecular interactions, the present work also offers a new platform for single nanoparticle sensing by measuring the single nanoparticle capacitance.
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Affiliation(s)
- Tao Liu
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China .
| | - Meng Li
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China .
| | - Yongjie Wang
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China .
| | - Yimin Fang
- State Key Laboratory of Analytical Chemistry for Life Science , School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210023 , China .
| | - 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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32
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Li SS, Kong QY, Zhang M, Yang F, Kang B, Xu JJ, Chen HY. Plasmon-Resonance-Energy-Transfer-Based Spectroscopy on Single Nanoparticles: Biomolecular Recognition and Enzyme Kinetics. Anal Chem 2018; 90:3833-3841. [DOI: 10.1021/acs.analchem.7b04467] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shan-Shan Li
- 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
| | - Qing-Ying Kong
- 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
| | - Miao Zhang
- 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
| | - Fan Yang
- 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
| | - Bin Kang
- 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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33
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Cao X, Lei G, Feng J, Pan Q, Wen X, He Y. A Novel Color Modulation Analysis Strategy through Tunable Multiband Laser for Nanoparticle Identification and Evaluation. Anal Chem 2018; 90:2501-2507. [PMID: 29334223 DOI: 10.1021/acs.analchem.7b03636] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Creating color difference and improving the color resolution in digital imaging is crucial for better application of color analysis. Herein, a novel color modulation analysis strategy was developed by using a homemade tunable multiband laser illumination device, in which the portions of R, G, and B components of the illumination light are discretionarily adjustable, and hence the sample color could be visually modulated continuously in the RGB color space. Through this strategy, the color appearance of single gold nanorods (AuNRs) under dark-field microscopy was migrated from the spectrally insensitive red region to the spectrally sensitive green-yellow region. Unlike the traditional continuous-wave light source illumination, wherein the small spectral variations in the samples within a narrow spectral range are averaged by the whole spectrum of the light source, leading to little color difference, the application of sharp, multiband laser illumination could enlarge the color separation between samples, thus resulting in high spectral sensitivity in color analysis. By comparing the corresponding color evolution processes of different samples as the multiband combination of the laser illumination was changed, more efficient color separation of AuNRs was achieved. With this instrument and single Ag@AuNRs as the sulfide probe, we achieved high throughput and highly sensitive detection of sulfide at a detection limit of 0.1 nM, a more than 2 orders of magnitude improvement compared to the previous color sensing scheme. This strategy could be utilized for nanoparticle identification, evaluation, and determination in biological imaging and biochemical analysis.
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Affiliation(s)
- Xuan Cao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University , Changsha, Hunan 410082, P. R. China.,Institute of Pharmacy and Pharmacology, University of South China , Hengyang, Hunan 421001, P. R. China
| | - Gang Lei
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Jingjing Feng
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Qi Pan
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Xiaodong Wen
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
| | - Yan He
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University , Changsha, Hunan 410082, P. R. China.,Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
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34
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35
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Li ZJ, Shao JY, Zhong YW. Near-Infrared and Two-Wavelength Electrochromism Based on Nanocrystalline TiO2 Films Functionalized with Ruthenium-Amine Conjugated Complexes. Inorg Chem 2017; 56:8538-8546. [PMID: 28654287 DOI: 10.1021/acs.inorgchem.7b01297] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhi-Juan Li
- Beijing National
Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry,
CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, 2 Bei Yi Jie, Zhong Guan Cun, Haidian District, Beijing 100190, China
- University of Chinese Academy of Science, Beijing 100049, China
| | - Jiang-Yang Shao
- Beijing National
Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry,
CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, 2 Bei Yi Jie, Zhong Guan Cun, Haidian District, Beijing 100190, China
| | - Yu-Wu Zhong
- Beijing National
Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry,
CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Science, 2 Bei Yi Jie, Zhong Guan Cun, Haidian District, Beijing 100190, China
- University of Chinese Academy of Science, Beijing 100049, China
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36
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Zhang HZ, Li RS, Gao PF, Wang N, Lei G, Huang CZ, Wang J. Real-time dark-field light scattering imaging to monitor the coupling reaction with gold nanorods as an optical probe. NANOSCALE 2017; 9:3568-3575. [PMID: 28244517 DOI: 10.1039/c6nr09453h] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Gold nanorods (GNRs) have opened up promising applications based on their reshaping, due to the fact that a tiny change in shape or size could directly lead to optical changes. Herein, we report chemical reshaping of GNRs induced by the coupling reaction between Au, ferric chloride and thiourea. In the coupling reaction, Fe3+ oxidizes the GNRs to yield Au(i), which complexes with the thiourea ligand, lowering the Gibbs free energy of the gold species and promoting the reaction equilibrium to enable the chemical reshaping of the GNRs. This coupling reaction process was monitored using a light-scattering dark-field microscopy (DFM) imaging technique and scanning electron microscopy (SEM). The light scattering underwent a colour change from bright red to yellow and finally to green, and the GNRs underwent a morphological change from rod-shaped to fusiform and finally to spherical, which is somewhat different from the results of other chemical etching processes of GNRs. It is believed that the coupling reaction induced chemical reshaping of GNRs not only provides an alternative way to monitor the coupling reaction, but also offers a facile way to obtain a desirable GNR morphology, which is important for the preparation of fusiform nanostructures.
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Affiliation(s)
- Hong Zhi Zhang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
| | - Rong Sheng Li
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
| | - Peng Fei Gao
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
| | - Ni Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
| | - Gang Lei
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
| | - Cheng Zhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China. and Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Jian Wang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China.
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37
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Fang Y, Wang H, Yu H, Liu X, Wang W, Chen HY, Tao NJ. Plasmonic Imaging of Electrochemical Reactions of Single Nanoparticles. Acc Chem Res 2016; 49:2614-2624. [PMID: 27662069 DOI: 10.1021/acs.accounts.6b00348] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Electrochemical reactions are involved in many natural phenomena, and are responsible for various applications, including energy conversion and storage, material processing and protection, and chemical detection and analysis. An electrochemical reaction is accompanied by electron transfer between a chemical species and an electrode. For this reason, it has been studied by measuring current, charge, or related electrical quantities. This approach has led to the development of various electrochemical methods, which have played an essential role in the understanding and applications of electrochemistry. While powerful, most of the traditional methods lack spatial and temporal resolutions desired for studying heterogeneous electrochemical reactions on electrode surfaces and in nanoscale materials. To overcome the limitations, scanning probe microscopes have been invented to map local electrochemical reactions with nanometer resolution. Examples include the scanning electrochemical microscope and scanning electrochemical cell microscope, which directly image local electrochemical reaction current using a scanning electrode or pipet. The use of a scanning probe in these microscopes provides high spatial resolution, but at the expense of temporal resolution and throughput. This Account discusses an alternative approach to study electrochemical reactions. Instead of measuring electron transfer electrically, it detects the accompanying changes in the reactant and product concentrations on the electrode surface optically via surface plasmon resonance (SPR). SPR is highly surface sensitive, and it provides quantitative information on the surface concentrations of reactants and products vs time and electrode potential, from which local reaction kinetics can be analyzed and quantified. The plasmonic approach allows imaging of local electrochemical reactions with high temporal resolution and sensitivity, making it attractive for studying electrochemical reactions in biological systems and nanoscale materials with high throughput. The plasmonic approach has two imaging modes: electrochemical current imaging and interfacial impedance imaging. The former images local electrochemical current associated with electrochemical reactions (faradic current), and the latter maps local interfacial impedance, including nonfaradic contributions (e.g., double layer charging). The plasmonic imaging technique can perform voltammetry (cyclic or square wave) in an analogous manner to the traditional electrochemical methods. It can also be integrated with bright field, dark field, and fluorescence imaging capabilities in one optical setup to provide additional capabilities. To date the plasmonic imaging technique has found various applications, including mapping of heterogeneous surface reactions, analysis of trace substances, detection of catalytic reactions, and measurement of graphene quantum capacitance. The plasmonic and other emerging optical imaging techniques (e.g., dark field and fluorescence microscopy), together with the scanning probe-based electrochemical imaging and single nanoparticle analysis techniques, provide new capabilities for one to study single nanoparticle electrochemistry with unprecedented spatial and temporal resolutions. In this Account, we focus on imaging of electrochemical reactions at single nanoparticles.
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Affiliation(s)
- Yimin Fang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hui Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hui Yu
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Xianwei Liu
- Department of Chemistry, University of Science & Technology of China, Hefei 230026, China
| | - Wei Wang
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Hong-Yuan Chen
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - N. J. Tao
- State
Key Laboratory of Analytical Chemistry for Life Science, School of
Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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