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Zhao Y, Adiyeri Saseendran DP, Huang C, Triana CA, Marks WR, Chen H, Zhao H, Patzke GR. Oxygen Evolution/Reduction Reaction Catalysts: From In Situ Monitoring and Reaction Mechanisms to Rational Design. Chem Rev 2023; 123:6257-6358. [PMID: 36944098 DOI: 10.1021/acs.chemrev.2c00515] [Citation(s) in RCA: 55] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
The oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are core steps of various energy conversion and storage systems. However, their sluggish reaction kinetics, i.e., the demanding multielectron transfer processes, still render OER/ORR catalysts less efficient for practical applications. Moreover, the complexity of the catalyst-electrolyte interface makes a comprehensive understanding of the intrinsic OER/ORR mechanisms challenging. Fortunately, recent advances of in situ/operando characterization techniques have facilitated the kinetic monitoring of catalysts under reaction conditions. Here we provide selected highlights of recent in situ/operando mechanistic studies of OER/ORR catalysts with the main emphasis placed on heterogeneous systems (primarily discussing first-row transition metals which operate under basic conditions), followed by a brief outlook on molecular catalysts. Key sections in this review are focused on determination of the true active species, identification of the active sites, and monitoring of the reactive intermediates. For in-depth insights into the above factors, a short overview of the metrics for accurate characterizations of OER/ORR catalysts is provided. A combination of the obtained time-resolved reaction information and reliable activity data will then guide the rational design of new catalysts. Strategies such as optimizing the restructuring process as well as overcoming the adsorption-energy scaling relations will be discussed. Finally, pending current challenges and prospects toward the understanding and development of efficient heterogeneous catalysts and selected homogeneous catalysts are presented.
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Affiliation(s)
- Yonggui Zhao
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | | | - Chong Huang
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Carlos A Triana
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Walker R Marks
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Hang Chen
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Han Zhao
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Greta R Patzke
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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2
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Electric Double Layer: The Good, the Bad, and the Beauty. ELECTROCHEM 2022. [DOI: 10.3390/electrochem3040052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The electric double layer (EDL) is the most important region for electrochemical and heterogeneous catalysis. Because of it, its modeling and investigation are something that can be found in the literature for a long time. However, nowadays, it is still a hot topic of investigation, mainly because of the improvement in simulation and experimental techniques. The present review aims to present the classical models for the EDL, as well as presenting how this region affects electrochemical data in everyday experimentation, how to obtain and interpret information about EDL, and, finally, how to obtain some molecular point of view insights on it.
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Zhang C, Li Y, Zhu A, Yang L, Du X, Hu Y, Yang X, Zhang F, Xie W. In situ monitoring of Suzuki-Miyaura cross-coupling reaction by using surface-enhanced Raman spectroscopy on a bifunctional Au-Pd nanocoronal film. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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4
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Experimental characterization techniques for plasmon-assisted chemistry. Nat Rev Chem 2022; 6:259-274. [PMID: 37117871 DOI: 10.1038/s41570-022-00368-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/04/2022] [Indexed: 12/19/2022]
Abstract
Plasmon-assisted chemistry is the result of a complex interplay between electromagnetic near fields, heat and charge transfer on the nanoscale. The disentanglement of their roles is non-trivial. Therefore, a thorough knowledge of the chemical, structural and spectral properties of the plasmonic/molecular system being used is required. Specific techniques are needed to fully characterize optical near fields, temperature and hot carriers with spatial, energetic and/or temporal resolution. The timescales for all relevant physical and chemical processes can range from a few femtoseconds to milliseconds, which necessitates the use of time-resolved techniques for monitoring the underlying dynamics. In this Review, we focus on experimental techniques to tackle these challenges. We further outline the difficulties when going from the ensemble level to single-particle measurements. Finally, a thorough understanding of plasmon-assisted chemistry also requires a substantial joint experimental and theoretical effort.
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Shinki, Singh J, Sarkar S. Tuning the topographical parameters of Si pyramids for a better surface enhanced Raman response. Phys Chem Chem Phys 2021; 23:26407-26416. [PMID: 34792516 DOI: 10.1039/d1cp03576b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Development of facile routes for the fabrication of surface enhanced Raman substrates (SERS) along with optimal conditions for a high enhancement factor are significant from an application perspective of SERS. Despite steady efforts to establish high SERS signals, cost effectiveness without compromising the enhanced and robust Raman signal remains a major challenge. To address this aspect, herein, we try to tune the topographical aspects of Si pyramidal textures in pursuit of efficient SERS substrates. These pyramidal surfaces are deployed as a pre-template for adopting a SERS substrate using a cost-effective wet chemical etching method. By controlling the etching time, various topographical parameters namely base size, height, pyramidal number density and uniformity of pyramidal textures are modulated. To make all the surfaces SERS active, a Au (50%)-Ag (50%) alloy nanolayer is post-deposited over them. Furthermore, SERS behavior of all the surfaces is investigated by using Rh6G dye as an analyte molecule. In addition to the high density of hot spots in terms of pyramidal number density, base size and uniformity shows a strong correlation in deciding the substantial SERS response. Furthermore, we find a high enhancement factor (∼1.42 × 108) for the substrate consisting of dense, small and uniformly sized pyramids. Finite Difference Time Domain (FDTD) simulations done on similar structures corroborate our results. Additionally, universal applicability of the proposed substrate is also verified by detecting methylene blue and methyl parathion analyte molecules. These substrates are much cheaper (∼5 USD for 1 × 1 cm2) in comparison with commercially available Klarite SERS substrates (∼100 USD for 2 × 2 mm2). We believe this work provides a critical insight into the design of potential SERS substrates using a significantly cost-effective wet chemical etching process.
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Affiliation(s)
- Shinki
- Surface Modification and Applications Laboratory (SMAL), Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India.
| | - Jaspreet Singh
- Surface Modification and Applications Laboratory (SMAL), Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India.
| | - Subhendu Sarkar
- Surface Modification and Applications Laboratory (SMAL), Department of Physics, Indian Institute of Technology Ropar, Rupnagar, Punjab, 140001, India.
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6
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Liu H, Lu C, Han L, Zhang X, Song G. Optical – Magnetic probe for evaluating cancer therapy. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Huynh KH, Hahm E, Noh MS, Lee JH, Pham XH, Lee SH, Kim J, Rho WY, Chang H, Kim DM, Baek A, Kim DE, Jeong DH, Park SM, Jun BH. Recent Advances in Surface-Enhanced Raman Scattering Magnetic Plasmonic Particles for Bioapplications. NANOMATERIALS 2021; 11:nano11051215. [PMID: 34064407 PMCID: PMC8147842 DOI: 10.3390/nano11051215] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/25/2021] [Accepted: 04/30/2021] [Indexed: 01/10/2023]
Abstract
The surface-enhanced Raman scattering (SERS) technique, that uses magnetic plasmonic particles (MPPs), is an advanced SERS detection platform owing to the synergetic effects of the particles’ magnetic and plasmonic properties. As well as being an ultrasensitive and reliable SERS material, MPPs perform various functions, such as aiding in separation, drug delivery, and acting as a therapeutic material. This literature discusses the structure and multifunctionality of MPPs, which has enabled the novel application of MPPs to various biological fields.
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Affiliation(s)
- Kim-Hung Huynh
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Eunil Hahm
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Mi Suk Noh
- Medical Device & Bio-research Team, Bio-medical & Environ-chemical Division, Korea Testing Certification, Gunpo, Gyeonggi-do 15809, Korea;
| | - Jong-Hwan Lee
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea;
| | - Xuan-Hung Pham
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Sang Hun Lee
- Department of Chemical and Biological Engineering, Hanbat National University, 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Korea;
| | - Jaehi Kim
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Won-Yeop Rho
- School of International Engineering and Science, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea;
| | - Hyejin Chang
- Division of Science Education, Kangwon National University, 1 Gangwondaehakgil, Chuncheon-si, Gangwon-do 24341, Korea;
| | - Dong Min Kim
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Ahruem Baek
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Dong-Eun Kim
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
| | - Dae Hong Jeong
- Department of Chemistry Education, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea;
- Center for Educational Research, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Seung-min Park
- Department of Urology, Department of Radiology, Molecular Imaging Program at Stanford, Stanford University School of Medicine, Stanford, CA 94305, USA
- Correspondence: (S.-m.P.); (B.-H.J.); Tel.: +82-2-450-0521 (B.-H.J.)
| | - Bong-Hyun Jun
- Department of Bioscience and Biotechnology, Konkuk University,120 Neungdong-ro, Gwangjin-Gu, Seoul 05029, Korea; (K.-H.H.); (E.H.); (X.-H.P.); (J.K.); (D.M.K.); (A.B.); (D.-E.K.)
- Correspondence: (S.-m.P.); (B.-H.J.); Tel.: +82-2-450-0521 (B.-H.J.)
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8
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Hess C. New advances in using Raman spectroscopy for the characterization of catalysts and catalytic reactions. Chem Soc Rev 2021; 50:3519-3564. [PMID: 33501926 DOI: 10.1039/d0cs01059f] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Gaining insight into the mode of operation of heterogeneous catalysts is of great scientific and economic interest. Raman spectroscopy has proven its potential as a powerful vibrational spectroscopic technique for a fundamental and molecular-level characterization of catalysts and catalytic reactions. Raman spectra provide important insight into reaction mechanisms by revealing specific information on the catalysts' (defect) structure in the bulk and at the surface, as well as the presence of adsorbates and reaction intermediates. Modern Raman instrumentation based on single-stage spectrometers allows high throughput and versatility in design of in situ/operando cells to study working catalysts. This review highlights major advances in the use of Raman spectroscopy for the characterization of heterogeneous catalysts made during the past decade, including the development of new methods and potential directions of research for applying Raman spectroscopy to working catalysts. The main focus will be on gas-solid catalytic reactions, but (photo)catalytic reactions in the liquid phase will be touched on if it appears appropriate. The discussion begins with the main instrumentation now available for applying vibrational Raman spectroscopy to catalysis research, including in situ/operando cells for studying gas-solid catalytic processes. The focus then moves to the different types of information available from Raman spectra in the bulk and on the surface of solid catalysts, including adsorbates and surface depositions, as well as the use of theoretical calculations to facilitate band assignments and to describe (resonance) Raman effects. This is followed by a presentation of major developments in enhancing the Raman signal of heterogeneous catalysts by use of UV resonance Raman spectroscopy, surface-enhanced Raman spectroscopy (SERS), and shell-isolated nanoparticle surface-enhanced Raman spectroscopy (SHINERS). The application of time-resolved Raman studies to structural and kinetic characterization is then discussed. Finally, recent developments in spatially resolved Raman analysis of catalysts and catalytic processes are presented, including the use of coherent anti-Stokes Raman spectroscopy (CARS) and tip-enhanced Raman spectroscopy (TERS). The review concludes with an outlook on potential future developments and applications of Raman spectroscopy in heterogeneous catalysis.
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Affiliation(s)
- Christian Hess
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Alarich-Weiss-Str. 8, 64287, Darmstadt, Germany.
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9
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Tao Y, Chan HF, Shi B, Li M, Leong KW. Light: A Magical Tool for Controlled Drug Delivery. ADVANCED FUNCTIONAL MATERIALS 2020; 30:2005029. [PMID: 34483808 PMCID: PMC8415493 DOI: 10.1002/adfm.202005029] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Indexed: 05/04/2023]
Abstract
Light is a particularly appealing tool for on-demand drug delivery due to its noninvasive nature, ease of application and exquisite temporal and spatial control. Great progress has been achieved in the development of novel light-driven drug delivery strategies with both breadth and depth. Light-controlled drug delivery platforms can be generally categorized into three groups: photochemical, photothermal, and photoisomerization-mediated therapies. Various advanced materials, such as metal nanoparticles, metal sulfides and oxides, metal-organic frameworks, carbon nanomaterials, upconversion nanoparticles, semiconductor nanoparticles, stimuli-responsive micelles, polymer- and liposome-based nanoparticles have been applied for light-stimulated drug delivery. In view of the increasing interest in on-demand targeted drug delivery, we review the development of light-responsive systems with a focus on recent advances, key limitations, and future directions.
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Affiliation(s)
- Yu Tao
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Hon Fai Chan
- Institute for Tissue Engineering and Regenerative Medicine, School of Biomedical Science, The Chinese University of Hong Kong, Hong Kong, China
| | - Bingyang Shi
- International Joint Center for Biomedical Innovation, School of Life Sciences, Henan University, Kaifeng, Henan 475004, China
| | - Mingqiang Li
- Laboratory of Biomaterials and Translational Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
| | - Kam W Leong
- Department of Biomedical Engineering, Department of Systems Biology, Columbia University Medical Center, New York, NY 10032, USA
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Cortijo-Campos S, Ramírez-Jiménez R, Climent-Pascual E, Aguilar-Pujol M, Jiménez-Villacorta F, Martínez L, Jiménez-Riobóo R, Prieto C, de Andrés A. Raman amplification in the ultra-small limit of Ag nanoparticles on SiO 2 and graphene: Size and inter-particle distance effects. MATERIALS & DESIGN 2020; 192:108702. [PMID: 33154608 PMCID: PMC7116317 DOI: 10.1016/j.matdes.2020.108702] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Size, shape and hot spots are crucial to optimize Raman amplification from metallic nanoparticle (NPs). The amplification from radius = 1.8 ± 0.4 nm ultra-small silver NPs was explored. Increasing NP density redshifts and widens their plasmon that, according to simulations for NPs arrays, is originated by the reduction of the interparticle distance, d, becoming remarkable for d ≤ R. Inter-particle interaction red-shifts (N130 nm) and widens (N90 nm) the standard plasmon of non-interacting spherical particles. Graphene partly delocalizes the carriers enhancing the NIR spectral weight. Raman amplification of graphene phonons is moderate and depends smoothly on d while that of Rhodamine 6G (R6G) varies almost exponentially due to their location at hotspots that depend strongly on d. The experimental correlation between amplification and plasmon position is well reproduced by simulations. The amplification originated by the ultra-small NPs is compared to that of larger particles, granular silver films with 7 < R < 15 nm grains, with similar extinction values. The amplification is found to be larger for the 1.8nm NPs due to the higher surface/volume ration that allows higher density of hot spots. It is demonstrated that Raman amplification can be efficiently increased by depositing low density layers of ultra-small NPs on top of granular films.
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Affiliation(s)
- Sandra Cortijo-Campos
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Rafael Ramírez-Jiménez
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
- Departamento de Física, Escuela Politécnica Superior, Universidad Carlos III de Madrid, Avenida Universidad 30, Leganés, 28911, Madrid, Spain
| | - Esteban Climent-Pascual
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
- Escuela Técnica Superior de Ingeniería Industrial, Universidad Politécnica de Madrid, C/José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - Montserrat Aguilar-Pujol
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Félix Jiménez-Villacorta
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
- Consorcio ESS-Bilbao, Parque Tecnológico Bizkaia, Poligono Ugaldeguren III, Pol. A, 7B 48170 Zamudio, Spain
| | - Lidia Martínez
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Rafael Jiménez-Riobóo
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Carlos Prieto
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
| | - Alicia de Andrés
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas, Cantoblanco, 28049 Madrid, Spain
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Supported Ultra-Thin Alumina Membranes with Graphene as Efficient Interference Enhanced Raman Scattering Platforms for Sensing. NANOMATERIALS 2020; 10:nano10050830. [PMID: 32349274 PMCID: PMC7712178 DOI: 10.3390/nano10050830] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/22/2020] [Accepted: 04/23/2020] [Indexed: 02/07/2023]
Abstract
The detection of Raman signals from diluted molecules or biomaterials in complex media is still a challenge. Besides the widely studied Raman enhancement by nanoparticle plasmons, interference mechanisms provide an interesting option. A novel approach for amplification platforms based on supported thin alumina membranes was designed and fabricated to optimize the interference processes. The dielectric layer is the extremely thin alumina membrane itself and, its metallic aluminum support, the reflecting medium. A CVD (chemical vapor deposition) single-layer graphene is transferred on the membrane to serve as substrate to deposit the analyte. Experimental results and simulations of the interference processes were employed to determine the relevant parameters of the structure to optimize the Raman enhancement factor (E.F.). Highly homogeneous E.F. over the platform surface are obtained, typically 370 ± (5%), for membranes with ~100 nm pore depth, ~18 nm pore diameter and the complete elimination of the Al2O3 bottom barrier layer. The combined surface enhanced Raman scattering (SERS) and interference amplification is also demonstrated by depositing ultra-small silver nanoparticles. This new approach to amplify the Raman signal of analytes is easily obtained, low-cost and robust with useful enhancement factors (~400) and allows only interference or combined enhancement mechanisms, depending on the analyte requirements.
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Fleischer M, Zhang D, Meixner AJ. Optically and electrically driven nanoantennas. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:1542-1545. [PMID: 33094087 PMCID: PMC7554664 DOI: 10.3762/bjnano.11.136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 09/11/2020] [Indexed: 05/13/2023]
Affiliation(s)
- Monika Fleischer
- Institute for Applied Physics and Center LISA⁺, University of Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Dai Zhang
- Institute of Physical and Theoretical Chemistry and Center LISA⁺, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Alfred J Meixner
- Institute of Physical and Theoretical Chemistry and Center LISA⁺, University of Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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Zhang Y, Hu Y, Li G, Zhang R. A composite prepared from gold nanoparticles and a metal organic framework (type MOF-74) for determination of 4-nitrothiophenol by surface-enhanced Raman spectroscopy. Mikrochim Acta 2019; 186:477. [PMID: 31250191 DOI: 10.1007/s00604-019-3618-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 06/15/2019] [Indexed: 12/13/2022]
Abstract
Core-shell nanoparticles (NPs) consisting of a gold core and a metal-organic framework shell (type MOF-74) were synthesized via one-pot synthesis. The NPs exhibit highly sensitive and stable SERS activity for the detection of 4-nitrothiophenol, with a specific band at 1337 cm-1. The method has a linear response in 0.10-10 μmol·L-1 analyte concentration range and a lower detection limit of 69 nmol·L-1. The potential application of this novel SERS substrate was evaluated by two model reactions involving 4-nitrothiophenol. The first involves in-situ SERS monitoring of the surface plasmon-induced nitration of aromatic rings without adding conventional acid catalyst. The second involves the photocatalytic reduction of 4-nitrothiophenol to 4-thioaminophenol in the presence of Au/MOF-74 under 785-nm laser irradiation. The plasmon-assisted dimerization of 4-nitrothiophenol to form 4,4'-dimercaptoazobenzene can also be monitored simultaneously. Graphical abstract Schematic presentation of a nanoparticle SERS substrate consisting of gold core and MOF-74 shell, which was applied to detection of 4-nitrothiophenol. The Au/MOF-74 was successfully used for in-situ monitoring of two model reactions involving 4-nitrothiophenol by SERS.
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Affiliation(s)
- Yanshu Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Yufei Hu
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gongke Li
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
| | - Runkun Zhang
- School of Chemistry, Sun Yat-sen University, Guangzhou, 510275, China.
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Lu D, Zhou J, Chen Y, Ma J, Duan H. Self-Assembly of Polymer-Coated Plasmonic Nanocrystals: From Synthetic Approaches to Practical Applications. Macromol Rapid Commun 2018; 40:e1800613. [PMID: 30456873 DOI: 10.1002/marc.201800613] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/28/2018] [Indexed: 11/08/2022]
Abstract
Self-assembly of plasmonic nanocrystals (PNCs) and polymers provides access to a variety of functionalized metallic-polymer building blocks and higher-order hybrid plasmonic assemblies, and thus is of considerable fundamental and practical interest. The hybrid assemblies often not only inherit individual characteristics of polymers and PNCs but also exhibit distinct photophysical and catalytic properties compared to that of a single PNC building block. The tailorable plasmonic coupling between PNCs within assemblies enables the precise control over localized surface plasmon resonance, which subsequently affords a series of light-driven or photo-activated applications, such as surface-enhanced Raman scattering detection, photoacoustic imaging, photothermal therapy, and photodynamic therapy. In this review, the synthetic strategies of a library of PNC-polymer hybrid building blocks and corresponding assemblies are summarized along with the mechanisms of polymer-assisted self-assembly of PNCs and the concepts for bridging the intrinsic properties of PNC-polymer assemblies to widespread practical applications.
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Affiliation(s)
- Derong Lu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Jiajing Zhou
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Yonghao Chen
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Jielin Ma
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
| | - Hongwei Duan
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Dr., Singapore, 637457
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Wang X, Zhu X, Shi H, Chen Y, Chen Z, Zeng Y, Tang Z, Duan H. Three-Dimensional-Stacked Gold Nanoparticles with Sub-5 nm Gaps on Vertically Aligned TiO 2 Nanosheets for Surface-Enhanced Raman Scattering Detection Down to 10 fM Scale. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35607-35614. [PMID: 30232887 DOI: 10.1021/acsami.8b11713] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Seeking for ultrasensitive and low-cost substrates is highly demandable for practical applications of surface-enhanced Raman scattering (SERS) technology. In this work, we report an ultrasensitive SERS-active substrate based on wet-chemistry-synthesized vertically aligned large-area TiO2 nanosheets (NSs) decorated by densely packed gold nanoparticles (Au NPs) with sub-5 nm gaps. Via a multistep successive deposition process, three-dimensional-stacked Au NPs sandwiched by a 3 nm SiO2 layer were assembled onto the TiO2 NS, enabling numerous hotspots due to the formation of both ultratiny plasmonic gaps and semiconductor/metal interfaces. Experimental results show that the fabricated substrate displays a detection limit down to 10 fM (10-14 M) without involving any condensation process by using the crystal violet as probe molecules. Control experiments and electromagnetic simulations indicate that the nanogaps defined by the 3 nm spacer are essential for the obtained excellent SERS performance. With its ultrasensitive detection capability, we demonstrate that the fabricated SERS substrate can be used for the trace analysis of melamine in milk.
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Affiliation(s)
| | - Xupeng Zhu
- School of Physics Science and Technology , Lingnan Normal University , Zhanjiang 524048 , People's Republic of China
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16
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Detection of nitrite with a surface-enhanced Raman scattering sensor based on silver nanopyramid array. Anal Chim Acta 2018; 1040:158-165. [PMID: 30327106 DOI: 10.1016/j.aca.2018.08.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/15/2018] [Accepted: 08/09/2018] [Indexed: 01/22/2023]
Abstract
Nutrient pollution is of worldwide environmental and health concerns due to extensive use of nitrogen fertilizers and release of livestock waste, which induces nitrite compounds in aquatic systems. Herein a surface-enhanced Raman scattering (SERS) sensor is developed for nitrite detection based on coupling between the plasmonic gold nanostars and the silver nanopyramid array. When nitrite is present in the assay, an azo group is formed between the 1-naphthylamine-functionalized silver nanopyramids and the 4-aminothiophenol-functionalized gold nanostars. This not only generates the SERS spectral fingerprint for selective detection, but also creates "hot spots" at the gap between the Au nanostars and the Ag nanopyramids where the azo group is located, amplifying SERS signals remarkably. Finite-difference time-domain (FDTD) simulation shows a SERS enhancement factor of 4 × 1010 at the "hot spots". As a result, the SERS sensor achieves a limit of detection of 0.6 pg/mL toward nitrite in water, and enables nitrite detection in real-world river water samples. In addition, this sensor eliminates the use of any Raman reporter and any expensive molecular recognition probe such as antibody and aptamer. This highly sensitive, selective and inexpensive SERS sensor has unique advantages over colorimetric, electrochemical and fluorescent devices for small molecule detection.
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17
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Milliken S, Fraser J, Poirier S, Hulse J, Tay LL. Self-assembled vertically aligned Au nanorod arrays for surface-enhanced Raman scattering (SERS) detection of Cannabinol. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:222-228. [PMID: 29453097 DOI: 10.1016/j.saa.2018.01.030] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 12/28/2017] [Accepted: 01/11/2018] [Indexed: 05/27/2023]
Abstract
Self-assembled multi-layered vertically aligned gold nanorod (AuNR) arrays have been fabricated by a simple preparation process that requires a balance between the particle concentration and the ionic strength of the solvent. An experimentally determined critical AuNR concentration of 2.0nM and 50mM NaCl produces well-ordered vertically aligned hexagonally close-packed AuNR arrays. We demonstrate surface treatment via UV Ozone cleaning of such samples to allow introduction of analyte molecules (benzenethiol and cannabinol) for effective surface enhanced Raman scattering detection. This is the first demonstration of the SERS analysis of cannabinol. This approach demonstrates a cost-effective, high-yield and simple fabrication route to SERS sensors with application in the screening for the cannabinoids.
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Affiliation(s)
- Sarah Milliken
- National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada
| | - Jeff Fraser
- National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada
| | - Shawn Poirier
- National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada
| | - John Hulse
- National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada
| | - Li-Lin Tay
- National Research Council Canada, Measurement Science and Standards, Ottawa, ON K1A0R6, Canada.
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18
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Song C, Dou Y, Yuwen L, Sun Y, Dong C, Li F, Yang Y, Wang L. A gold nanoflower-based traceable drug delivery system for intracellular SERS imaging-guided targeted chemo-phototherapy. J Mater Chem B 2018; 6:3030-3039. [PMID: 32254338 DOI: 10.1039/c8tb00587g] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Accurate and effective drug delivery in tumor cells significantly improves the curative effect with high drug delivery efficiency, low toxicity and side effects and has become an urgent demand for anticancer therapy. In this paper, a novel traceable and targeted drug delivery nanosystem (i.e. AuNF-nanocarriers) with high drug encapsulation and pH-controlled release was prepared based on gold nanoflowers (AuNFs) for efficient intracellular SERS imaging-guided chemo-phototherapy. SERS-active flower-like gold nanoparticles with large surface area were synthesized first and then modified with Raman and RGD molecules in sequence to prepare bright, traceable and targeted SERS tags of A549 human lung cancer cells. Furthermore, thiolated-PAA (PAA-SH) was synthesized and utilized for the first time to modify the SERS tags with a layer of negative charges for efficient pH-dependent loading and release of the anticancer drug doxorubicin. Based on the A549 human lung cancer cell model, the availability of the proposed AuNF-nanocarriers for efficient intracellular SERS imaging-guided chemo-phototherapy was studied and the results indicate that the AuNF-based drug delivery system exhibited attractive characteristics such as good stability, efficiency and pH-controlled drug loading and release, traceable and targeted delivery, as well as SERS imaging and chemo-phototherapy functions, and shows great potential for powerful SERS-imaging and as a theranostic candidate for precision nanomedicine that could achieve sensitive and accurate tumor detection and therapy.
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Affiliation(s)
- Chunyuan Song
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China.
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19
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Cialla-May D, Zheng XS, Weber K, Popp J. Recent progress in surface-enhanced Raman spectroscopy for biological and biomedical applications: from cells to clinics. Chem Soc Rev 2018. [PMID: 28639667 DOI: 10.1039/c7cs00172j] [Citation(s) in RCA: 311] [Impact Index Per Article: 51.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The application of surface-enhanced Raman spectroscopy (SERS) in biological and biomedical detection schemes is feasible due to its excellent molecular specificity and high sensitivity as well as the capability of SERS to be performed in complex biological compositions. SERS-based investigation of cells, which are the basic structure and functional unit of organisms, represents the starting point of this review. It is demonstrated that SERS provides a deep understanding of living cells as well as their microenvironment which is needed to assess the development of diseases. The clinical relevance of SERS is proved by its application for the detection of cancer cells and tumour margins under in vivo conditions and examples for theranostic approaches are discussed. This review article provides a comprehensive overview of the recent progress within the last 3 years.
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Affiliation(s)
- D Cialla-May
- Friedrich Schiller University Jena, Institute of Physical Chemical and Abbe Center of Photonics, Helmholtzweg 4, 07745 Jena, Germany.
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20
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Xie W, Schlücker S. Surface-enhanced Raman spectroscopic detection of molecular chemo- and plasmo-catalysis on noble metal nanoparticles. Chem Commun (Camb) 2018; 54:2326-2336. [PMID: 29387849 DOI: 10.1039/c7cc07951f] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The in situ detection of reactions catalyzed by metal NPs is challenging because the underlying chemical transformations occur at interfaces. Surface-enhanced Raman scattering (SERS), a surface-selective, sensitive and label-free vibrational spectroscopic technique, is ideally suited for monitoring of heterogeneous catalysis with high chemical specificity. A major limitation in the past, however, was that small, catalytically active metal NPs do not exhibit the high plasmonic activity required for SERS. This feature article focuses on the design, synthesis and use of bifunctional NPs with both catalytic and plasmonic activity for in situ SERS detection of reactions catalyzed by metal NPs. We focus on model reactions induced by chemical reducing agents such as hydride or molecular hydrogen as well as on plasmon-induced photo-catalysis including both photo-oxidation and photo-reduction. Finally, we highlight the concept of photo-recycling on halide-containing silver surfaces for unprecedented multi-electron reduction chemistry.
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Affiliation(s)
- Wei Xie
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, China.
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21
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Li H, Chen Q, Hassan MM, Ouyang Q, Jiao T, Xu Y, Chen M. AuNS@Ag core-shell nanocubes grafted with rhodamine for concurrent metal-enhanced fluorescence and surfaced enhanced Raman determination of mercury ions. Anal Chim Acta 2018; 1018:94-103. [PMID: 29605140 DOI: 10.1016/j.aca.2018.01.050] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/28/2018] [Accepted: 01/30/2018] [Indexed: 12/26/2022]
Abstract
Mercury ion (Hg2+) is a highly hazardous and widespread pollutant with bio-accumulative properties. Although the existing Hg2+ detection methods have high sensitivity and reliability, whereas there have few reports concerning bimodal detection for Hg2+ with one sensor. Toward this goal, a novel sensor based on rhodamine derivatives (RhD) grafted AuNS@Ag core-shell nanocubes (CSN) has been synthesized and shown the bimodal detection capabilities with metal enhanced fluorescence (MEF) and surface enhanced Raman scattering (SERS) for Hg2+. Herein, resultant CSN acts as the signal enhancing material; RhD was modified on the outside of the shell to ensure the signal sensitive of the CSN-RhD hybrids. In this work, we investigate the size- and shape-dependent SERS activity of plasmonic CSN comprised of AuNS as cores and Ag cuboids as shells. The SERS activity of CSN with spherical core was found to increase with the increasing thickness of the Ag cubic shell. Sequel, under an optimized condition, a display of strong MEF and SERS signals of the resulting mixtures with increasing of Hg2+ concentrations was observed. The proposed bimodal sensor showed excellent performances for Hg2+ along with wide linear range of 0.001-1000 ppm and 0.01-1000 ppm as well as the relatively low detection limit of 0.94 and 5.16 ppb for MEF and SERS assays, respectively. Furthermore, the ability of the sensor to detect Hg2+was also confirmed in adulterated milk samples.
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Affiliation(s)
- Huanhuan Li
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Quansheng Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China.
| | - Md Mehedi Hassan
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Qin Ouyang
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Tianhui Jiao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yi Xu
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Min Chen
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, PR China
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22
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Lu G, Wang G, Li H. Effect of nanostructured silicon on surface enhanced Raman scattering. RSC Adv 2018; 8:6629-6633. [PMID: 35540409 PMCID: PMC9078225 DOI: 10.1039/c8ra00014j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 02/02/2018] [Indexed: 12/31/2022] Open
Abstract
Non-metallic materials are often employed in SERS systems by forming composite structures with SERS-active metal materials. However, the role of the non-metallic structures in these composites and the effect of them on the SERS enhancement are still unclear. Herein, we studied the effect of silicon morphology on SERS enhancement on silver nanoparticles-coated different structured silicon surfaces. Our finding will help to further understand the SERS mechanism and pave the way for making more efficient SERS systems. The surface morphology of non-metallic silicon has a big effect on the SERS enhancement of silver nanoparticle-coated silicon surfaces.![]()
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Affiliation(s)
- Gang Lu
- Key Laboratory of Flexible Electronics (KLOFE)
- & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (NanjingTech)
- Nanjing 211816
| | - Guilin Wang
- Key Laboratory of Flexible Electronics (KLOFE)
- & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (NanjingTech)
- Nanjing 211816
| | - Hai Li
- Key Laboratory of Flexible Electronics (KLOFE)
- & Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing Tech University (NanjingTech)
- Nanjing 211816
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23
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Biscaglia F, Rajendran S, Conflitti P, Benna C, Sommaggio R, Litti L, Mocellin S, Bocchinfuso G, Rosato A, Palleschi A, Nitti D, Gobbo M, Meneghetti M. Enhanced EGFR Targeting Activity of Plasmonic Nanostructures with Engineered GE11 Peptide. Adv Healthc Mater 2017; 6. [PMID: 28945012 DOI: 10.1002/adhm.201700596] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Revised: 07/21/2017] [Indexed: 11/11/2022]
Abstract
Plasmonic nanostructures show important properties for biotechnological applications, but they have to be guided on the target for exploiting their potentialities. Antibodies are the natural molecules for targeting. However, their possible adverse immunogenic activity and their cost have suggested finding other valid substitutes. Small molecules like peptides can be an alternative source of targeting agents, even if, as single molecules, their binding affinity is usually not very good. GE11 is a small dodecapeptide with specific binding to the epidermal growth factor receptor (EGFR) and low immunogenicity. The present work shows that thousands of polyethylene glycol (PEG) chains modified with lysines and functionalized with GE11 on clusters of naked gold nanoparticles, obtained by laser ablation in water, achieves a better targeting activity than that recorded with nanoparticles decorated with the specific anti-EGFR antibody Cetuximab (C225). The insertion of the cationic spacer between the polymeric part of the ligand and the targeting peptide allows for a proper presentation of GE11 on the surface of the nanosystems. Surface enhanced resonance Raman scattering signals of the plasmonic gold nanoparticles are used for quantifying the targeting activity. Molecular dynamic calculations suggest that subtle differences in the exposition of the peptide on the PEG sea are important for the targeting activity.
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Affiliation(s)
- Francesca Biscaglia
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Senthilkumar Rajendran
- Department of Surgery Oncology and Gastroenterology; University of Padova; Via Giustiniani, 2 35124 Padova Italy
| | - Paolo Conflitti
- Department of Chemical Sciences & Technologies; University of Roma Tor Vergata and CSGI; Via della Ricerca Scientifica 00133 Rome Italy
| | - Clara Benna
- Department of Surgery Oncology and Gastroenterology; University of Padova; Via Giustiniani, 2 35124 Padova Italy
| | - Roberta Sommaggio
- Department of Surgery Oncology and Gastroenterology; University of Padova; Via Giustiniani, 2 35124 Padova Italy
| | - Lucio Litti
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Simone Mocellin
- Department of Surgery Oncology and Gastroenterology; University of Padova; Via Giustiniani, 2 35124 Padova Italy
- Veneto Institute of Oncology IOV-IRCCS; Via Gattamelata, 64 35128 Padova Italy
| | - Gianfranco Bocchinfuso
- Department of Chemical Sciences & Technologies; University of Roma Tor Vergata and CSGI; Via della Ricerca Scientifica 00133 Rome Italy
| | - Antonio Rosato
- Department of Surgery Oncology and Gastroenterology; University of Padova; Via Giustiniani, 2 35124 Padova Italy
- Veneto Institute of Oncology IOV-IRCCS; Via Gattamelata, 64 35128 Padova Italy
| | - Antonio Palleschi
- Department of Chemical Sciences & Technologies; University of Roma Tor Vergata and CSGI; Via della Ricerca Scientifica 00133 Rome Italy
| | - Donato Nitti
- Department of Surgery Oncology and Gastroenterology; University of Padova; Via Giustiniani, 2 35124 Padova Italy
| | - Marina Gobbo
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
| | - Moreno Meneghetti
- Department of Chemical Sciences; University of Padova; Via Marzolo 1 35131 Padova Italy
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24
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Tunable plasmonic substrates with ultrahigh Q-factor resonances. Sci Rep 2017; 7:15985. [PMID: 29167504 PMCID: PMC5700073 DOI: 10.1038/s41598-017-16288-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 11/09/2017] [Indexed: 01/12/2023] Open
Abstract
Precisely tailored plasmonic substrates can provide a platform for a variety of enhanced plasmonic applications in sensing and imaging. Despite the significant advances made in plasmonics, most plasmonic devices suffer critically from intrinsic absorption losses at optical frequencies, fatally restricting their efficiency. Here, we describe and engineer plasmonic substrates based on metal-insulator-metal (MIM) plasmon resonances with ultra-sharp optical transmission responses. Due to their sharp transmission spectrum, the proposed substrates can be utilized for high quality (Q)-factor multi-functional plasmonic applications. Analytical and numerical methods are exploited to investigate the optical properties of the substrates. The optical response of the substrate can be tuned by adjusting the periodicity of the nanograting patterned on the substrate. Fabricated substrates present Q-factors as high as ∼40 and refractive index sensing of the surrounding medium as high as 1245 nm/RIU. Our results indicate that by engineering the substrate geometry, the dielectric thickness and incident angle, the radiation losses can be greatly diminished, thus enabling the design of plasmonic substrates with large Q factor and strong sensitivity to the environment.
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25
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Han M, Zhu C, Zhao Q, Chen C, Tao Z, Xie W, Cheng F, Chen J. In Situ Atomic Force Microscopic Studies of Single Tin Nanoparticle: Sodiation and Desodiation in Liquid Electrolyte. ACS APPLIED MATERIALS & INTERFACES 2017; 9:28620-28626. [PMID: 28809533 DOI: 10.1021/acsami.7b08870] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Probing electrodes at a nanometer scale is challenging but desirable to reveal the structural evolution of materials in electrochemical reactions. Herein, we present an atomic force microscopic method for an in situ analysis of a single Sn nanoparticle during sodiation and desodiation, which is conducted in an aprotic liquid electrolyte akin to a real electrochemical environment of the Na-ion cells. The morphological evolution of different-sized single Sn nanoparticle is visualized during the charge/discharge cycles by using a homemade planar electrode. All of the Sn nanoparticles exhibit a dramatic initial volume expansion of about 420% after sodiation to Na15Sn4. Interestingly, we find that the smaller Sn nanoparticles show a lower rate of irreversible volume change and a better shape maintenance than the larger ones after desodiation. This finding suggests the importance of downsizing in improving the mechanical stability and the cycling performance of the Sn-based anodes in sodium-ion batteries.
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Affiliation(s)
- Mo Han
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Chenbo Zhu
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Qing Zhao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Chengcheng Chen
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Zhanliang Tao
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Wei Xie
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Fangyi Cheng
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
| | - Jun Chen
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) and State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University , Tianjin 300071, China
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26
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Pougin A, Lüken A, Klinkhammer C, Hiltrop D, Kauer M, Tölle K, Havenith-Newen M, Morgenstern K, Grünert W, Muhler M, Strunk J. Probing Oxide Reduction and Phase Transformations at the Au-TiO2 Interface by Vibrational Spectroscopy. Top Catal 2017. [DOI: 10.1007/s11244-017-0851-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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27
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Tan TH, Scott JA, Ng YH, Taylor RA, Aguey-Zinsou KF, Amal R. Plasmon enhanced selective electronic pathways in TiO2 supported atomically ordered bimetallic Au-Cu alloys. J Catal 2017. [DOI: 10.1016/j.jcat.2017.06.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Alvarez-Fraga L, Climent-Pascual E, Aguilar-Pujol M, Ramírez-Jiménez R, Jiménez-Villacorta F, Prieto C, de Andrés A. Efficient Heterostructures for Combined Interference and Plasmon Resonance Raman Amplification. ACS APPLIED MATERIALS & INTERFACES 2017; 9:4119-4125. [PMID: 28054769 DOI: 10.1021/acsami.6b12490] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The detection, identification, and quantification of different types of molecules and the optical imaging of, for example, cellular processes are important challenges. Here, we present how interference-enhanced Raman scattering (IERS) in adequately designed heterostructures can provide amplification factors relevant for both detection and imaging. Calculations demonstrate that the key factor is maximizing the absolute value of the refractive indices' difference between dielectric and metal layers. Accordingly, Si/Al/Al2O3/graphene heterostructures have been fabricated by optimizing the thickness and roughness and reaching enhancement values up to 700 for 488 nm excitation. The deviation from the calculated enhancement, 1200, is mainly due to reflectivity losses and roughness of the Al layer. The IERS platforms are also demonstrated to improve significantly the quality of white light images of graphene and are foreseen to be adequate to reveal the morphology of 2D and biological materials. A graphene top layer is adequate for most organic molecule deposition and often quenches possible fluorescence, permitting Raman signal detection, which, for a rhodamine 6G (R6G) monolayer, presents a gain of 400. Without graphene, the nonquenched R6G fluorescence is similarly amplified. The wavelength dependence of the involved refractive indices predicts much higher amplification (around 104) for NIR excitation. These interference platforms can therefore be used to gain contrast and intensity in white light, Raman, and fluorescence imaging. We also demonstrate that surface-enhanced Raman scattering and IERS amplifications can be efficiently combined, leading to a gain of >105 (at 488 nm) by depositing a Ag nanostructured transparent film on the IERS platform. When the plasmonic structures deposited on the IERS platforms are optimized, single-molecule detection can be actively envisaged.
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Affiliation(s)
- Leo Alvarez-Fraga
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas , Cantoblanco, 28049 Madrid, Spain
| | - Esteban Climent-Pascual
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas , Cantoblanco, 28049 Madrid, Spain
| | - Montserrat Aguilar-Pujol
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas , Cantoblanco, 28049 Madrid, Spain
| | - Rafael Ramírez-Jiménez
- Departamento de Física, Escuela Politécnica Superior, Universidad Carlos III de Madrid , Avenida Universidad 30, Leganés, 28911 Madrid, Spain
| | - Félix Jiménez-Villacorta
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas , Cantoblanco, 28049 Madrid, Spain
| | - Carlos Prieto
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas , Cantoblanco, 28049 Madrid, Spain
| | - Alicia de Andrés
- Instituto de Ciencia de Materiales de Madrid, Consejo Superior de Investigaciones Científicas , Cantoblanco, 28049 Madrid, Spain
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29
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Zhang H, Xu L, Xu Y, Huang G, Zhao X, Lai Y, Shi T. Enhanced Self-Organized Dewetting of Ultrathin Polymer Blend Film for Large-Area Fabrication of SERS Substrate. Sci Rep 2016; 6:38337. [PMID: 27922062 PMCID: PMC5138605 DOI: 10.1038/srep38337] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Accepted: 11/08/2016] [Indexed: 01/10/2023] Open
Abstract
We study the enhanced dewetting of ultrathin Polystyrene (PS)/Poly (methyl methacrylate) (PMMA) blend films in a mixed solution, and reveal the dewetting can act as a simple and effective method to fabricate large-area surface-enhanced Raman scattering (SERS) substrate. A bilayer structure consisting of under PMMA layer and upper PS layer forms due to vertical phase separation of immiscible PS/PMMA during the spin-coating process. The thicker layer of the bilayer structure dominates the dewetting structures of PS/PMMA blend films. The diameter and diameter distribution of droplets, and the average separation spacing between the droplets can be precisely controlled via the change of blend ratio and film thickness. The dewetting structure of 8 nm PS/PMMA (1:1 wt%) blend film is proved to successfully fabricate large-area (3.5 cm × 3.5 cm) universal SERS substrate via deposited a silver layer on the dewetting structure. The SERS substrate shows good SERS-signal reproducibility (RSD < 7.2%) and high enhancement factor (2.5 × 107). The enhanced dewetting of polymer blend films broadens the application of dewetting of polymer films, especially in the nanotechnology, and may open a new approach for the fabrication of large-area SERS substrate to promote the application of SERS substrate in the rapid sensitive detection of trace molecules.
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Affiliation(s)
- Huanhuan Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,Laboratory of Surface Physics and Chemistry, Guizhou Education University, Guiyang 550018, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Lin Xu
- Laboratory of Surface Physics and Chemistry, Guizhou Education University, Guiyang 550018, P. R. China
| | - Yabo Xu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Gang Huang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xueyu Zhao
- School of Chemistry and Life Sciences, Guizhou Education University, Guiyang 550018, P. R. China
| | - Yuqing Lai
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
| | - Tongfei Shi
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China
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30
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Xie W, Grzeschik R, Schlücker S. Metal Nanoparticle-Catalyzed Reduction Using Borohydride in Aqueous Media: A Kinetic Analysis of the Surface Reaction by Microfluidic SERS. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605776] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Wei Xie
- Department of Chemistry and Center for Nanointegration Duisburg-Essen; University of Duisburg-Essen; Universitätsstr. 5 45141 Essen Germany
| | - Roland Grzeschik
- Department of Chemistry and Center for Nanointegration Duisburg-Essen; University of Duisburg-Essen; Universitätsstr. 5 45141 Essen Germany
| | - Sebastian Schlücker
- Department of Chemistry and Center for Nanointegration Duisburg-Essen; University of Duisburg-Essen; Universitätsstr. 5 45141 Essen Germany
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31
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Xie W, Grzeschik R, Schlücker S. Metal Nanoparticle-Catalyzed Reduction Using Borohydride in Aqueous Media: A Kinetic Analysis of the Surface Reaction by Microfluidic SERS. Angew Chem Int Ed Engl 2016; 55:13729-13733. [DOI: 10.1002/anie.201605776] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Wei Xie
- Department of Chemistry and Center for Nanointegration Duisburg-Essen; University of Duisburg-Essen; Universitätsstr. 5 45141 Essen Germany
| | - Roland Grzeschik
- Department of Chemistry and Center for Nanointegration Duisburg-Essen; University of Duisburg-Essen; Universitätsstr. 5 45141 Essen Germany
| | - Sebastian Schlücker
- Department of Chemistry and Center for Nanointegration Duisburg-Essen; University of Duisburg-Essen; Universitätsstr. 5 45141 Essen Germany
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32
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Scaramuzza S, Badocco D, Pastore P, Coral DF, Fernández van Raap MB, Amendola V. Magnetically Assembled SERS Substrates Composed of Iron-Silver Nanoparticles Obtained by Laser Ablation in Liquid. Chemphyschem 2016; 18:1026-1034. [DOI: 10.1002/cphc.201600651] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 01/20/2023]
Affiliation(s)
| | - Denis Badocco
- University of Padua; Department of Chemical Sciences; Padua Italy
| | - Paolo Pastore
- University of Padua; Department of Chemical Sciences; Padua Italy
| | - Diego F. Coral
- Physics Institute of La Plata (IFLP-CONICET); Physics Department; Faculty of Exact Sciences; National University of La Plata; La Plata Argentina
| | - Marcela B. Fernández van Raap
- Physics Institute of La Plata (IFLP-CONICET); Physics Department; Faculty of Exact Sciences; National University of La Plata; La Plata Argentina
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33
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An D, Shen Y, Wen J, Zheng Z, Chen J, She J, Chen H, Deng S, Xu N. Molybdenum Nanoscrews: A Novel Non-coinage-Metal Substrate for Surface-Enhanced Raman Scattering. NANO-MICRO LETTERS 2016; 9:2. [PMID: 30460299 PMCID: PMC6223773 DOI: 10.1007/s40820-016-0104-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 06/24/2016] [Indexed: 06/09/2023]
Abstract
ABSTRACT For the first time, Mo nanoscrew was cultivated as a novel non-coinage-metal substrate for surface-enhanced Raman scattering (SERS). It was found that the nanoscrew is composed of many small screw threads stacking along its length direction with small separations. Under external light excitation, strong electromagnetic coupling was initiated within the gaps, and many hot-spots formed on the surface of the nanoscrew, which was confirmed by high-resolution scanning near-field optical microscope measurements and numerical simulations using finite element method. These hot-spots are responsible for the observed SERS activity of the nanoscrews. Raman mapping characterizations further revealed the excellent reproducibility of the SERS activity. Our findings may pave the way for design of low-cost and stable SERS substrates. GRAPHICAL ABSTRACT Mo nanoscrews are for the first time cultivated as a novel type of SERS substrate. The SERS activity is originated from the electromagnetic field enhancements on the individual Mo nanoscrew, which is corroborated by single-particle optical characterizations.
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Affiliation(s)
- Di An
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Yan Shen
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Jinxiu Wen
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Zebo Zheng
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Jun Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Juncong She
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Huanjun Chen
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Shaozhi Deng
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
| | - Ningsheng Xu
- State Key Laboratory of Optoelectronic Materials and Technologies, Guangdong Province Key Laboratory of Display Material and Technology, School of Electronics and Information Technology, Sun Yat-sen University, Guangzhou, 510275 People’s Republic of China
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34
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Chen Q, Wen J, Li H, Xu Y, Liu F, Sun S. Recent advances in different modal imaging-guided photothermal therapy. Biomaterials 2016; 106:144-66. [PMID: 27561885 DOI: 10.1016/j.biomaterials.2016.08.022] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 08/08/2016] [Accepted: 08/14/2016] [Indexed: 02/06/2023]
Abstract
Photothermal therapy (PTT) has recently attracted considerable attention owing to its controllable treatment process, high tumour eradication efficiency and minimal side effects on non-cancer cells. PTT can melt cancerous cells by localising tissue hyperthermia induced by internalised therapeutic agents with a high photothermal conversion efficiency under external laser irradiation. Numerous in vitro and in vivo studies have shown the significant potential of PTT to treat tumours in future practical applications. Unfortunately, the lack of visualisation towards agent delivery and internalisation, as well as imaging-guided comprehensive evaluation of therapeutic outcome, limits its further application. Developments in combined photothermal therapeutic nanoplatforms guided by different imaging modalities have compensated for the major drawback of PTT alone, proving PTT to be a promising technique in biomedical applications. In this review, we introduce recent developments in different imaging modalities including single-modal, dual-modal, triple-modal and even multi-modal imaging-guided PTT, together with imaging-guided multi-functional theranostic nanoplatforms.
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Affiliation(s)
- Qiwen Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Xinong Road 22, Yangling, Shaanxi 712100, China
| | - Jia Wen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Xinong Road 22, Yangling, Shaanxi 712100, China
| | - Hongjuan Li
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Xinong Road 22, Yangling, Shaanxi 712100, China
| | - Yongqian Xu
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Xinong Road 22, Yangling, Shaanxi 712100, China
| | - Fengyu Liu
- State Key Laboratory of Fine Chemicals, School of Chemistry, Dalian University of Technology, No. 2 Linggong Road, Ganjingzi District, Dalian 116023, China
| | - Shiguo Sun
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Science, Northwest A&F University, Xinong Road 22, Yangling, Shaanxi 712100, China.
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35
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Zhang Z, Xu P, Yang X, Liang W, Sun M. Surface plasmon-driven photocatalysis in ambient, aqueous and high-vacuum monitored by SERS and TERS. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2016. [DOI: 10.1016/j.jphotochemrev.2016.04.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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36
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Li X, Hu Y, An Q, Luan X, Zhang Q, Zhang Y. Fuzzy, copper-based multi-functional composite particles serving simultaneous catalytic and signal-enhancing roles. NANOSCALE 2016; 8:9376-9381. [PMID: 27091497 DOI: 10.1039/c6nr02022d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Multifunctional plasmonic particles serving simultaneously as catalysts and label-free reporting agents are highly pursued due to their great potential in enhancing reaction operational efficiencies. Copper is an abundant and economic resource, and it possesses practical applicability in industries, but no dual-functional copper-based catalytic and self-reporting particles have been reported so far. This study proposes a facile strategy to prepare high-performance dual-functional copper-based composite particles that catalyze reactions and simultaneously serve as a SERS (surface enhanced Raman spectra) active, label-free reporting agent. Polyelectrolyte-modified reduced graphene oxide particles are used as the reactive precursors in the fabrication method. Upon adding Cu(NO3)2 solutions into the precursor dispersions, composite particles comprised by copper/copper oxide core and polyelectrolyte-graphene shell were facilely obtained under sonication. The as-prepared composite particles efficiently catalyzed the conversion of 4-nitrophenol to 4-aminophenol and simultaneously acted as the SERS-active substrate to give enhanced Raman spectra of the produced 4-aminophenol. Taking advantage of the assembling capabilities of polyelectrolyte shells, the composite particles could be further assembled onto a planar substrate to catalyze organic reactions, facilitating their application in various conditions. We expect this report to promote the fabrication and application of copper-based multifunctional particles.
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Affiliation(s)
- Xiangming Li
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Yingmo Hu
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Xinglong Luan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Qian Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, China.
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37
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Hartman T, Wondergem C, Kumar N, van den
Berg A, Weckhuysen BM. Surface- and Tip-Enhanced Raman Spectroscopy in Catalysis. J Phys Chem Lett 2016; 7:1570-84. [PMID: 27075515 PMCID: PMC4902183 DOI: 10.1021/acs.jpclett.6b00147] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Accepted: 03/31/2016] [Indexed: 05/19/2023]
Abstract
Surface- and tip-enhanced Raman spectroscopy (SERS and TERS) techniques exhibit highly localized chemical sensitivity, making them ideal for studying chemical reactions, including processes at catalytic surfaces. Catalyst structures, adsorbates, and reaction intermediates can be observed in low quantities at hot spots where electromagnetic fields are the strongest, providing ample opportunities to elucidate reaction mechanisms. Moreover, under ideal measurement conditions, it can even be used to trigger chemical reactions. However, factors such as substrate instability and insufficient signal enhancement still limit the applicability of SERS and TERS in the field of catalysis. By the use of sophisticated colloidal synthesis methods and advanced techniques, such as shell-isolated nanoparticle-enhanced Raman spectroscopy, these challenges could be overcome.
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Affiliation(s)
- Thomas Hartman
- Faculty
of Science, Debye Institute for
Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Caterina
S. Wondergem
- Faculty
of Science, Debye Institute for
Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Naresh Kumar
- Faculty
of Science, Debye Institute for
Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- National
Physical Laboratory, Hampton Road, Teddington, Middlesex TW11 0LW, U.K.
| | - Albert van den
Berg
- BIOS
Lab on a Chip Group and MESA+ Institute for Nanotechnology, University of Twente,
P.O. Box 217, 7500 AE Enschede, The Netherlands
| | - Bert M. Weckhuysen
- Faculty
of Science, Debye Institute for
Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
- E-mail:
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38
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Chu J, Miao P, Han X, Du Y, Wang X, Song B, Xu P. Ultrafast Surface-Plasmon-Induced Photodimerization ofp-Aminothiophenol on Ag/TiO2Nanoarrays. ChemCatChem 2016. [DOI: 10.1002/cctc.201600172] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiayu Chu
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 P.R. China
| | - Peng Miao
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 P.R. China
| | - Xijiang Han
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 P.R. China
| | - Yunchen Du
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 P.R. China
| | - Xianjie Wang
- Department of Physics; Harbin Institute of Technology; Harbin 150001 P.R. China
| | - Bo Song
- Academy of Fundamental and Interdisciplinary Sciences; Harbin Institute of Technology; Harbin 150001 P.R. China
| | - Ping Xu
- School of Chemistry and Chemical Engineering; Harbin Institute of Technology; Harbin 150001 P.R. China
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39
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Sarkar D, Mahitha MK, Som A, Li A, Wleklinski M, Cooks RG, Pradeep T. Metallic Nanobrushes Made using Ambient Droplet Sprays. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2016; 28:2223-8. [PMID: 26790107 DOI: 10.1002/adma.201505127] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Revised: 11/23/2015] [Indexed: 05/04/2023]
Abstract
An ambient solution-state method for making uniform nanobrushes composed of oriented 1D silver nanowires (NWs) with aspect ratios of 10(2) -10(4) is reported. These structures are grown over cm(2) areas on conducting surfaces. Assemblies of NWs form uniform nanobrush structures, which can capture micrometer-sized objects, such as bacteria and particulate matter. Variation in composition produces unique structures with catalytic properties.
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Affiliation(s)
- Depanjan Sarkar
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai, 60036, India
| | - Maheswari Kavirajan Mahitha
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai, 60036, India
| | - Anirban Som
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai, 60036, India
| | - Anyin Li
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Michael Wleklinski
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Robert Graham Cooks
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai, 60036, India
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
| | - Thalappil Pradeep
- DST Unit of Nanoscience (DST UNS) and Thematic Unit of Excellence (TUE), Department of Chemistry, Indian Institute of Technology Madras, Chennai, 60036, India
- Department of Chemistry, Purdue University, West Lafayette, IN, 47907, USA
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40
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Tan TH, Scott J, Ng YH, Taylor RA, Aguey-Zinsou KF, Amal R. Understanding Plasmon and Band Gap Photoexcitation Effects on the Thermal-Catalytic Oxidation of Ethanol by TiO2-Supported Gold. ACS Catal 2016. [DOI: 10.1021/acscatal.5b02785] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Tze Hao Tan
- School of Chemical Engineering and ‡School
of Mechanical
and Manufacturing Engineering, The University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Jason Scott
- School of Chemical Engineering and ‡School
of Mechanical
and Manufacturing Engineering, The University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Yun Hau Ng
- School of Chemical Engineering and ‡School
of Mechanical
and Manufacturing Engineering, The University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Robert A. Taylor
- School of Chemical Engineering and ‡School
of Mechanical
and Manufacturing Engineering, The University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Kondo-Francois Aguey-Zinsou
- School of Chemical Engineering and ‡School
of Mechanical
and Manufacturing Engineering, The University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
| | - Rose Amal
- School of Chemical Engineering and ‡School
of Mechanical
and Manufacturing Engineering, The University of New South Wales (UNSW), Kensington, New South Wales 2052, Australia
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41
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42
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Jahn M, Patze S, Hidi IJ, Knipper R, Radu AI, Mühlig A, Yüksel S, Peksa V, Weber K, Mayerhöfer T, Cialla-May D, Popp J. Plasmonic nanostructures for surface enhanced spectroscopic methods. Analyst 2016; 141:756-93. [DOI: 10.1039/c5an02057c] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The development within the last five years in the field of surface enhanced spectroscopy methods was comprehensively reviewed.
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43
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Almohammed S, Oladapo SO, Ryan K, Kholkin AL, Rice JH, Rodriguez BJ. Wettability gradient-induced alignment of peptide nanotubes as templates for biosensing applications. RSC Adv 2016. [DOI: 10.1039/c6ra05732b] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Peptide nanotubes coated with silver nanoparticles and aligned using wettability-patterned substrates provide improved Raman intensity for biosensing applications.
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Affiliation(s)
- Sawsan Almohammed
- School of Physics
- University College Dublin
- Dublin 4
- Ireland
- Conway Institute of Biomolecular and Biomedical Research
| | | | - Kate Ryan
- School of Physics
- University College Dublin
- Dublin 4
- Ireland
- Conway Institute of Biomolecular and Biomedical Research
| | - Andrei L. Kholkin
- Department of Physics & CICECO – Aveiro Institute of Materials
- 3810-193 Aveiro
- Portugal
- Institute of Natural Sciences
- Ural Federal University
| | - James H. Rice
- School of Physics
- University College Dublin
- Dublin 4
- Ireland
| | - Brian J. Rodriguez
- School of Physics
- University College Dublin
- Dublin 4
- Ireland
- Conway Institute of Biomolecular and Biomedical Research
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44
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Zhang P, Wang T, Gong J. Mechanistic Understanding of the Plasmonic Enhancement for Solar Water Splitting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2015; 27:5328-42. [PMID: 26265309 DOI: 10.1002/adma.201500888] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 06/09/2015] [Indexed: 05/20/2023]
Abstract
H2 generation by solar water splitting is one of the most promising solutions to meet the increasing energy demands of the fast developing society. However, the efficiency of solar-water-splitting systems is still too low for practical applications, which requires further enhancement via different strategies such as doping, construction of heterojunctions, morphology control, and optimization of the crystal structure. Recently, integration of plasmonic metals to semiconductor photocatalysts has been proved to be an effective way to improve their photocatalytic activities. Thus, in-depth understanding of the enhancement mechanisms is of great importance for better utilization of the plasmonic effect. This review describes the relevant mechanisms from three aspects, including: i) light absorption and scattering; ii) hot-electron injection and iii) plasmon-induced resonance energy transfer (PIRET). Perspectives are also proposed to trigger further innovative thinking on plasmonic-enhanced solar water splitting.
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Affiliation(s)
- Peng Zhang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| | - Tuo Wang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
| | - Jinlong Gong
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China
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45
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Potara M, Bawaskar M, Simon T, Gaikwad S, Licarete E, Ingle A, Banciu M, Vulpoi A, Astilean S, Rai M. Biosynthesized silver nanoparticles performing as biogenic SERS-nanotags for investigation of C26 colon carcinoma cells. Colloids Surf B Biointerfaces 2015; 133:296-303. [DOI: 10.1016/j.colsurfb.2015.06.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 05/18/2015] [Accepted: 06/10/2015] [Indexed: 01/22/2023]
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46
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Zito G, Rusciano G, Pesce G, Dochshanov A, Sasso A. Surface-enhanced Raman imaging of cell membrane by a highly homogeneous and isotropic silver nanostructure. NANOSCALE 2015; 7:8593-606. [PMID: 25898990 DOI: 10.1039/c5nr01341k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Label-free chemical imaging of live cell membranes can shed light on the molecular basis of cell membrane functionalities and their alterations under membrane-related diseases. In principle, this can be done by surface-enhanced Raman scattering (SERS) in confocal microscopy, but requires engineering plasmonic architectures with a spatially invariant SERS enhancement factor G(x, y) = G. To this end, we exploit a self-assembled isotropic nanostructure with characteristics of homogeneity typical of the so-called near-hyperuniform disorder. The resulting highly dense, homogeneous and isotropic random pattern consists of clusters of silver nanoparticles with limited size dispersion. This nanostructure brings together several advantages: very large hot spot density (∼10(4) μm(-2)), superior spatial reproducibility (SD < 1% over 2500 μm(2)) and single-molecule sensitivity (Gav ∼ 10(9)), all on a centimeter scale transparent active area. We are able to reconstruct the label-free SERS-based chemical map of live cell membranes with confocal resolution. In particular, SERS imaging is here demonstrated on red blood cells in vitro in order to use the Raman-resonant heme of the cell as a contrast medium to prove spectroscopic detection of membrane molecules. Numerical simulations also clarify the SERS characteristics of the substrate in terms of electromagnetic enhancement and distance sensitivity range consistently with the experiments. The large SERS-active area is intended for multi-cellular imaging on the same substrate, which is important for spectroscopic comparative analysis of complex organisms like cells. This opens new routes for in situ quantitative surface analysis and dynamic probing of living cells exposed to membrane-targeting drugs.
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Affiliation(s)
- Gianluigi Zito
- Department of Physics, University of Naples Federico II, via Cintia, 80126-I Naples, Italy.
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47
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Nie K, An Q, Tao S, Zhang Z, Luan X, Zhang Q, Zhang Y. Layer-by-layer reduced graphene oxide (rGO)/gold nanosheets (AuNSs) hybrid films: significantly enhanced photothermal transition effect compared with rGO or AuNSs films. RSC Adv 2015. [DOI: 10.1039/c5ra07647a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The photothermal effects of layer-by-layer AuNS (gold nanosheets)/rGO hybrid films outperformed that of rGO or AuNSs films under NIR irradiation.
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Affiliation(s)
- Kun Nie
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Qi An
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Shengyang Tao
- Department of Chemistry
- Dalian University of Technology
- Dalian
- P. R. China
| | - Zepeng Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Xinglong Luan
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Qian Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
| | - Yihe Zhang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes
- National Laboratory of Mineral Materials
- School of Materials Science and Technology
- China University of Geosciences
- Beijing
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Zhang Y, Walkenfort B, Yoon JH, Schlücker S, Xie W. Gold and silver nanoparticle monomers are non-SERS-active: a negative experimental study with silica-encapsulated Raman-reporter-coated metal colloids. Phys Chem Chem Phys 2014; 17:21120-6. [PMID: 25491599 DOI: 10.1039/c4cp05073h] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Noble metal nanoparticles (NPs) are the most commonly employed plasmonic substrates in surface-enhanced Raman scattering (SERS) experiments. Computer simulations show that monomers of Ag and Au nanocrystals ("spherical" NPs) do not exhibit a notable plasmonic enhancement, i.e., they are essentially non-SERS-active. However, in experiments, SERS enhanced by spherical NP colloids has been frequently reported. This implies that the monomers do not have strong SERS activity, but detectable enhancement should more or less be there. Because of the gap between theory and practice, it is important to demonstrate experimentally how SERS-active the metal colloid actually is and, in case a SERS signal is observed, where it originates from. In particular the aggregation of the colloid, induced by high centrifugal forces in washing steps or due to a harsh ionic environment of the suspension medium, should be controlled since it is the very high SERS activity of NP clusters which dominates the overall SERS signal of the colloid. We report here the experimental evaluation of the SERS activity of 80 nm Au and Ag NP monomers. Instead of showing fancy nanostructures and super SERS enhancement, we present the method on how to obtain negative experimental data. In this approach, no SERS signal was obtained from the colloid with a Raman reporter on the metal surface when the NPs were encapsulated carefully within a thick silica shell. Without silica encapsulation, if a very low centrifugation speed is used for the washing steps, only a negligible SERS signal can be detected even at very high NP concentrations. In contrast, strong SERS signals can be detected when the NPs are suspended in acidic solutions. These results indicate that Au and Ag NP monomers essentially exhibit no SERS activity of practical relevance.
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Affiliation(s)
- Yuying Zhang
- Department of Chemistry, University of Duisburg-Essen, Universitätsstr. 5, 45141 Essen, Germany.
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