1
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Yang W, Yuan Y, He L, Fan H. Single-cell analysis reveals microbial spore responses to sodium hypochlorite. JOURNAL OF BIOPHOTONICS 2024; 17:e202400015. [PMID: 38613161 DOI: 10.1002/jbio.202400015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024]
Abstract
Pollution from toxic spores has caused us a lot of problems because spores are extremely resistant and can survive most disinfectants. Therefore, the detection of spore response to disinfectant is of great significance for the development of effective decontamination strategies. In this work, we investigated the effect of 0.5% sodium hypochlorite on the molecular and morphological properties of single spores of Bacillus subtilis using single-cell techniques. Laser tweezers Raman spectroscopy showed that sodium hypochlorite resulted in Ca2+-dipicolinic acid release and nucleic acid denaturation. Atomic force microscopy showed that the surface of treated spores changed from rough to smooth, protein shells were degraded at 10 min, and the permeability barrier was destroyed at 15 min. The spore volume decreased gradually over time. Live-cell imaging showed that the germination and growth rates decreased with increasing treatment time. These results provide new insight into the response of spores to sodium hypochlorite.
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Affiliation(s)
- Weiming Yang
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong, China
- School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong, China
| | - Yufeng Yuan
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong, China
| | - Lin He
- School of Electrical Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong, China
| | - Haihua Fan
- School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, Guangdong, China
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2
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Kohila Rani K, Xiao YH, Devasenathipathy R, Gao K, Wang J, Kang X, Zhu C, Chen H, Jiang L, Liu Q, Qiao F, Li Z, Wu DY, Lu G. Raman Monitoring of the Electro-Optical Synergy-Induced Enhancements in Carbon-Bromine Bond Cleavage, Reaction Rate, and Product Selectivity of p-Bromothiophenol. ACS APPLIED MATERIALS & INTERFACES 2024; 16:27831-27840. [PMID: 38757708 DOI: 10.1021/acsami.4c01259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Electro-optical synergy has recently been targeted to improve the separation of hot carriers and thereby further improve the efficiency of plasmon-mediated chemical reactions (PMCRs). However, the electro-optical synergy in PMCRs needs to be more deeply understood, and its contribution to bond dissociation and product selectivity needs to be clarified. Herein, the electro-optical synergy in plasmon-mediated reduction of p-bromothiophenol (PBTP) was studied on a plasmonic nanostructured silver electrode using in situ Raman spectroscopy and theoretical calculations. It was found that the electro-optical synergy-induced enhancements in the cleavage of carbon-bromine bonds, reaction rate, and product selectivity (4,4'-biphenyl dithiol vs thiophenol) were largely affected by the applied bias, laser wavelength, and laser power. The theoretical simulation further clarified that the strong electro-optical synergy is attributed to the matching of energy band diagrams of the plasmonic silver with those of the adsorbed PBTP molecules. A deep understanding of the electro-optical synergy in PBTP reduction and the clarification of the mechanism will be highly beneficial for the development of other highly efficient PMCRs.
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Affiliation(s)
- Karuppasamy Kohila Rani
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Yuan-Hui Xiao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Rajkumar Devasenathipathy
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Kun Gao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Jiazheng Wang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Xing Kang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Chengcheng Zhu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Haonan Chen
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Lu Jiang
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Qinghua Liu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Furong Qiao
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - Zhuoyao Li
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
| | - De-Yin Wu
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Collaborative Innovation Center of Chemistry for Energy Materials (iChEM), Xiamen University, Xiamen 361005, PR China
| | - Gang Lu
- Key Laboratory of Flexible Electronics, School of Flexible Electronics (Future Technologies), and Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, PR China
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3
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Zhang L, An X, Feng K, Li J, Liu J, Chen J, Li C, Zhang X, He L. Non-Photochemical Origin of Selectivity Difference between Light and Dark Catalytic Conditions. ACS APPLIED MATERIALS & INTERFACES 2024; 16:21987-21996. [PMID: 38636167 DOI: 10.1021/acsami.4c02425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The interest in introducing light into heterogeneous catalysis is driven not only by the urgent need of replacing fossil energy but also by the promise of controlling product selectivity by light. The product selectivity differences observed in recent studies between light and dark reactions are often attributed to photochemical effects. Here, we report the discovery of a non-photochemical origin of selectivity difference, at essentially the same CO2 conversion rate, between photothermal and thermal CO2 hydrogenation reactions over a Ru/TiO2-x catalyst. While the presence of the photochemical effect from ultraviolet light is confirmed, it merely enhances the catalytic activity. Systematic investigation reveals that the gradual formation of an adsorbate-mediated strong metal-support interaction under catalytic conditions is responsible for the variation in the catalytic selectivity. We demonstrate that differences in product selectivity under light/dark reactions do not necessarily originate from photochemical effects. Our study refines the basis for determining photochemical effects and highlights the importance of excluding non-photochemical effects in mechanistic studies of light-controlled product selectivity.
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Affiliation(s)
- Lin Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Xingda An
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, Jiangsu, P. R. China
| | - Kai Feng
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, Jiangsu, P. R. China
| | - Juan Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
| | - Jingjing Liu
- Institute of Information Technology, Suzhou Institute of Trade and Commerce, Suzhou 215009, Jiangsu, P. R. China
| | - Jinxing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, Jiangsu, P. R. China
| | - Chaoran Li
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, Jiangsu, P. R. China
| | - Xiaohong Zhang
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, Jiangsu, P. R. China
| | - Le He
- Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, China
- Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215123, Jiangsu, P. R. China
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4
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Hu J, He L, Wang G, Liu L, Wang Y, Song J, Qu J, Peng X, Yuan Y. Rapid and accurate identification of marine bacteria spores at a single-cell resolution by laser tweezers Raman spectroscopy and deep learning. JOURNAL OF BIOPHOTONICS 2024; 17:e202300510. [PMID: 38302112 DOI: 10.1002/jbio.202300510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/01/2024] [Accepted: 01/04/2024] [Indexed: 02/03/2024]
Abstract
Marine bacteria have been considered as important participants in revealing various carbon/sulfur/nitrogen cycles of marine ecosystem. Thus, how to accurately identify rare marine bacteria without a culture process is significant and valuable. In this work, we constructed a single-cell Raman spectra dataset from five living bacteria spores and utilized convolutional neural network to rapidly, accurately, nondestructively identify bacteria spores. The optimal CNN architecture can provide a prediction accuracy of five bacteria spore as high as 94.93% ± 1.78%. To evaluate the classification weight of extracted spectra features, we proposed a novel algorithm by occluding fingerprint Raman bands. Based on the relative classification weight arranged from large to small, four Raman bands located at 1518, 1397, 1666, and 1017 cm-1 mostly contribute to producing such high prediction accuracy. It can be foreseen that, LTRS combined with CNN approach have great potential for identifying marine bacteria, which cannot be cultured under normal condition.
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Affiliation(s)
- Jianchang Hu
- State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, Guangdong, China
- School of Electronic Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong, China
| | - Lin He
- School of Electronic Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong, China
| | - Guiwen Wang
- Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning, Guangxi, China
| | - Liwei Liu
- State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, Guangdong, China
| | - Yiping Wang
- State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, Guangdong, China
| | - Jun Song
- State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, Guangdong, China
| | - Junle Qu
- State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, Guangdong, China
- Engineering Research Center of Optical Instrument and System, Ministry of Education, Shanghai Key Lab of Modern Optical System, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Xiao Peng
- State Key Laboratory of Radio Frequency Heterogeneous Integration (Shenzhen University), College of Physics and Optoelectronic Engineering, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, Guangdong, China
| | - Yufeng Yuan
- School of Electronic Engineering and Intelligentization, Dongguan University of Technology, Dongguan, Guangdong, China
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5
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Wang Y, Li Y, Yang X, Wang T, Du X, Zhu A, Xie W, Xie W. Enhancing Plasmonic Hot Electron Energy on Ag Surface by Amine Coordination. Angew Chem Int Ed Engl 2024; 63:e202318817. [PMID: 38224169 DOI: 10.1002/anie.202318817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/14/2024] [Accepted: 01/15/2024] [Indexed: 01/16/2024]
Abstract
Plasmonic catalysis has emerged as a promising approach to solar-chemical energy conversion. Notably, hot carriers play a decisive role in plasmonic catalysis since only when their energy matches with the LUMO or HOMO energy of the reactant molecule, can the reaction be activated. However, the hot carrier energy depends on the intrinsic physicochemical properties of the plasmonic metal substrate and the interaction with incident light. Tuning the hot carrier energy is of great significance for plasmonic catalysis but remains challenging. Here, we demonstrate that the energy of hot electrons can be significantly elevated to an unprecedented level through the coordination of amines on Ag surface. The bonding of amines and Ag reduces the work function of nanoparticles, leading to the increase of hot electron energy by 0.4 eV. This enhancement of energy promotes the cleavage of C-X (X=Cl, F) bonds upon excitation by visible light. This study provides new insights for promoting plasmonic charge transfer and enhancing the photocatalytic performance of plasmon-mediated systems.
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Affiliation(s)
- Ying Wang
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Yonglong Li
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Xian Yang
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Teng Wang
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Xiaomeng Du
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Aonan Zhu
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Weiwei Xie
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
| | - Wei Xie
- State Key Laboratory of Advanced Chemical Power Sources, Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Tianjin Key Laboratory of Biosensing and Molecular Recognition, Haihe Laboratory of Sustainable Chemical Transformations, Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, 300071, Tianjin, P. R. China
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6
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Yao X, Ehtesabi S, Höppener C, Deckert-Gaudig T, Schneidewind H, Kupfer S, Gräfe S, Deckert V. Mechanism of Plasmon-Induced Catalysis of Thiolates and the Impact of Reaction Conditions. J Am Chem Soc 2024; 146:3031-3042. [PMID: 38275163 PMCID: PMC10859934 DOI: 10.1021/jacs.3c09309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 01/10/2024] [Accepted: 01/10/2024] [Indexed: 01/27/2024]
Abstract
The conversion of the thiols 4-aminothiophenol (ATP) and 4-nitrothiophenol (NTP) can be considered as one of the standard reactions of plasmon-induced catalysis and thus has already been the subject of numerous studies. Currently, two reaction pathways are discussed: one describes a dimerization of the starting material yielding 4,4'-dimercaptoazobenzene (DMAB), while in the second pathway, it is proposed that NTP is reduced to ATP in HCl solution. In this combined experimental and theoretical study, we disentangled the involved plasmon-mediated reaction mechanisms by carefully controlling the reaction conditions in acidic solutions and vapor. Motivated by the different surface-enhanced Raman scattering (SERS) spectra of NTP/ATP samples and band shifts in acidic solution, which are generally attributed to water, additional experiments under pure gaseous conditions were performed. Under such acidic vapor conditions, the Raman data strongly suggest the formation of a hitherto not experimentally identified stable compound. Computational modeling of the plasmonic hybrid systems, i.e., regarding the wavelength-dependent character of the involved electronic transitions of the detected key intermediates in both reaction pathways, confirmed the experimental finding of the new compound, namely, 4-nitrosothiophenol (TP*). Tracking the reaction dynamics via time-dependent SERS measurements allowed us to establish the link between the dimer- and monomer-based pathways and to suggest possible reaction routes under different environmental conditions. Thereby, insight at the molecular level was provided with respect to the thermodynamics of the underlying reaction mechanism, complementing the spectroscopic results.
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Affiliation(s)
- Xiaobin Yao
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Sadaf Ehtesabi
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Christiane Höppener
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Tanja Deckert-Gaudig
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Henrik Schneidewind
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - Stephan Kupfer
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
| | - Stefanie Gräfe
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
- Fraunhofer Institute of Applied Optics and
Precision Engineering, Albert-Einstein-Str. 7, 07745 Jena, Germany
| | - Volker Deckert
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University Jena, Helmholtzweg 4, 07743 Jena, Germany
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7
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Liu Y, Zhao Y, Li M, Liu Y. Annealing temperature effects on monolayer WS 2-veiled Ag nanoparticle array for surface catalytic reaction. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 303:123137. [PMID: 37523849 DOI: 10.1016/j.saa.2023.123137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 06/20/2023] [Accepted: 07/11/2023] [Indexed: 08/02/2023]
Abstract
Plasmonic-WS2 hybrids have attracted widespread interest for plasmon driven catalytic reactions. In this work, a Ag nanoparticles (NPs)/WS2 hybrid was fabricated by utilizing a one-step anodized Al template-assisted vacuum thermal evaporation technique and wet transfer method. To optimize the catalytic performance, the morphological evolution and corresponding changes in the catalytic properties of the Ag NPs/WS2 hybrid at different thermal annealing temperatures were investigated. It was found that the surface-enhanced Raman scattering (SERS) and catalytic activity of the hybrid were optimized by tuning the annealing temperature, with the optimal SERS and catalytic properties observed at 290 °C. These results may open new avenues for improving the efficiency and expanding the research field of plasmon-driven reactions.
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Affiliation(s)
- Yanqi Liu
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Engineering Research Center of Optical Instrument and System, The Ministry of Education, 516, Jungong Road, 200093 Shanghai, China
| | - Yan Zhao
- Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China; Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing University of Technology, Beijing 100124, China.
| | - Muhua Li
- Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Yi Liu
- Shanghai Key Lab of Modern Optical System, University of Shanghai for Science and Technology, Engineering Research Center of Optical Instrument and System, The Ministry of Education, 516, Jungong Road, 200093 Shanghai, China; CAS Center for Excellence in Ultra-Intense Laser Science, Shanghai 201800, China
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8
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Ye M, Song L, Ye Y, Deng Z. Assembly and Healing: Capacitive and Conductive Plasmonic Interfacing via a Unified and Clean Wet Chemistry Route. J Am Chem Soc 2023; 145:25653-25663. [PMID: 37963330 DOI: 10.1021/jacs.3c07879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Solution-based nanoparticle assembly represents a highly promising way to build functional metastructures based on a wealth of synthetic nanomaterial building blocks with well-controlled morphology and crystallinity. In particular, the involvement of DNA molecular programming in these bottom-up processes gradually helps the ambitious goal of customizable chemical nanofabrication. However, a fundamental challenge is to realize strong interunit coupling in an assembly toward emerging functions and applications. Herein, we present a unified and clean strategy to address this critical issue based on a H2O2-redox-driven "assembly and healing" process. This facile solution route is able to realize both capacitively coupled and conductively bridged colloidal boundaries, simply switchable by the reaction temperature, toward bottom-up nanoplasmonic engineering. In particular, such a "green" process does not cause surface contamination of nanoparticles by exogenous active metal ions or strongly passivating ligands, which, if it occurs, could obscure the intrinsic properties of as-formed structures. Accordingly, previously raised questions regarding the activities of strongly coupled plasmonic structures are clarified. The reported process is adaptable to DNA nanotechnology, offering molecular programmability of interparticle charge conductance. This work represents a new generation of methods to make strongly coupled nanoassemblies, offering great opportunities for functional colloidal technology and even metal self-healing.
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Affiliation(s)
- Meiyun Ye
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Lei Song
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yichen Ye
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhaoxiang Deng
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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9
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Chen N, Wang Y, Deng Z. DNA-Condensed Plasmonic Supraballs Transparent to Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14053-14062. [PMID: 37725679 DOI: 10.1021/acs.langmuir.3c01860] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
DNA nanotechnology offers an unrivaled programmability of plasmonic nanoassemblies based on encodable Watson-Crick basepairing. However, it is very challenging to build rigidified three-dimensional supracolloidal assemblies with strong electromagnetic coupling and a self-confined exterior shape. We herein report an alternative strategy based on a DNA condensation reaction to make such structures. Using DNA-grafted gold nanoparticles as building blocks and metal ions with suitable phosphate affinities as abiological DNA-bonding agents, a seedless growth of spheroidal supraparticles is realized via metal-ion-induced DNA condensation. Some governing rules are disclosed in this process, including kinetic and thermodynamic effects stemming from electrostatic and coordinative forces with different interaction ranges. The supraballs are tailorable by adjusting the volumetric ratio between DNA grafts and gold cores and by overgrowing extra gold layers toward tunable plasmon coupling. Various appealing and highly desirable properties are achieved for the resulting metaballs, including (i) chemical reversibility and fixation ability, (ii) stability against denaturant, salt, and molecular adsorbates, (iii) enriched and continuously tunable plasmonic hotspots, (iv) permeability to small guest molecules and antifoulingness against protein contaminates, and (v) Raman-enhancing and photocatalytic activities. Innovative applications are thus foreseeable for this emerging class of meta-assemblies in contrast to what is achieved by DNA-basepaired ones.
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Affiliation(s)
- Nuo Chen
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yueliang Wang
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Zhaoxiang Deng
- Center for Bioanalytical Chemistry, Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
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10
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Ou W, Fan Y, Shen J, Xu Y, Huang D, Zhou B, Lo TW, Li S, Li YY, Lei D, Lu J. Plasmoelectric Potential in Plasmon-Mediated Electrochemistry. NANO LETTERS 2022; 22:8397-8405. [PMID: 36190454 DOI: 10.1021/acs.nanolett.2c01035] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Plasmon-mediated chemical reactions have attracted intensive research interest as a means of achieving desirable reaction yields and selectivity. The energetic charge carriers and elevated local temperature induced by the nonradiative decay of surface plasmons are thought to be responsible for improving reaction outcomes. This study reports that the plasmoelectric potential is another key contributor in plasmon-mediated electrochemistry. Additionally, we disclose a convenient and reliable method for quantifying the specific contributions of the plasmoelectric potential, hot electrons, and photothermal heating to the electroreduction of oxygen at the plasmonic Ag electrode, revealing that the plasmoelectric potential is the dominating nonthermal factor under short-wavelength illumination and moderate electrode bias. This work elucidates novel mechanistic understandings of plasmon-mediated electrochemistry, facilitating high-performance plasmonic electrocatalyst design optimization.
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Affiliation(s)
- Weihui Ou
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou510006, China
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen518057, China
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong
- Shenzhen Futian Research Institute, City University of Hong Kong Shenzen, Shenzhen518057, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Hong Kong
| | - Yulong Fan
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
| | - Junda Shen
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
- Shenzhen Futian Research Institute, City University of Hong Kong Shenzen, Shenzhen518057, China
| | - Yunkun Xu
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
| | - Dongqing Huang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
| | - Binbin Zhou
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen518057, China
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong
- Shenzhen Futian Research Institute, City University of Hong Kong Shenzen, Shenzhen518057, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Hong Kong
| | - Tsz Wing Lo
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
| | - Shengliang Li
- Department of Chemistry, City University of Hong Kong, Hong Kong
| | - Yang Yang Li
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen518057, China
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong
- Shenzhen Futian Research Institute, City University of Hong Kong Shenzen, Shenzhen518057, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Hong Kong
| | - Dangyuan Lei
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong
| | - Jian Lu
- Centre for Advanced Structural Materials, City University of Hong Kong Shenzhen Research Institute, Greater Bay Joint Division, Shenyang National Laboratory for Materials Science, Shenzhen518057, China
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong
- Shenzhen Futian Research Institute, City University of Hong Kong Shenzen, Shenzhen518057, China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center, City University of Hong Kong, Hong Kong
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Zhou B, Zhong J, Tang X, Liu JH, Shen J, Wang C, Ou W, Wang H, Liu L, Pan J, Lu J, Yang Li Y. ‘In situ Surface-Enhanced Raman Spectroscopy Monitoring of Molecular Reorientation in Plasmon-Mediated Chemical Reactions. J Catal 2022. [DOI: 10.1016/j.jcat.2022.06.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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