51
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Stauber T, Low T, Gómez-Santos G. Plasmon-Enhanced Near-Field Chirality in Twisted van der Waals Heterostructures. NANO LETTERS 2020; 20:8711-8718. [PMID: 33237775 DOI: 10.1021/acs.nanolett.0c03519] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
It is shown that chiral plasmons, characterized by a longitudinal magnetic moment accompanying the longitudinal charge plasmon, lead to electromagnetic near-fields that are also chiral. For twisted bilayer graphene, we estimate that the near-field chirality of screened plasmons can be several orders of magnitude larger than that of the related circularly polarized light. The chirality also manifests itself in a deflection angle that is formed between the direction of the plasmon propagation and its Poynting vector. Twisted van der Waals heterostructures might thus provide a novel platform to promote enantiomer-selective physio-chemical processes in chiral molecules without the application of a magnetic field or external nanopatterning that break time-reversal, mirror plane, or inversion symmetry, respectively.
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Affiliation(s)
- Tobias Stauber
- Departamento de Teoría y Simulación de Materiales, Instituto de Ciencia de Materiales de Madrid, CSIC, 28049 Madrid, Spain
| | - Tony Low
- Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Guillermo Gómez-Santos
- Departamento de Física de la Materia Condensada, INC and IFIMAC, Universidad Autónoma de Madrid, E-28049 Madrid, Spain
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52
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Huang JH, Wang ZY, Zang SQ, Mak TCW. Spontaneous Resolution of Chiral Multi-Thiolate-Protected Ag 30 Nanoclusters. ACS CENTRAL SCIENCE 2020; 6:1971-1976. [PMID: 33274274 PMCID: PMC7706080 DOI: 10.1021/acscentsci.0c01045] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Indexed: 05/20/2023]
Abstract
Despite significant progress achieved in the preparation of chiral nanoparticles, the enantioseparation of racemates still presents a big challenge in nanomaterial research. Herein, we report the synthesis and structural characterization of racemic anisotropic nanocluster Ag30(C2B10H9S3)8Dppm6 (Ag 30 -rac), which is protected by mixed carboranetrithiolate and phosphine ligands. Spontaneous self-resolution of the racemates was realized through conglomerate crystallization in dimethylacetamide (DMAc). The homochiral nanoclusters in the racemic conglomerates adopt enantiomeric helical self-assemblies (R/L-Ag 30 ). Diverse noncovalent interactions as the driving force in directing superstructure packing were elucidated in detail. Furthermore, the nanoclusters show red luminescence in both solid and solution states, and the racemic conglomerates display a mirror-image CPL response. This work provides atom-precise helical nanoparticle superstructures that facilitate an in-depth understanding of the helical-assembly mechanism.
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Affiliation(s)
- Jia-Hong Huang
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Zhao-Yang Wang
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
- E-mail:
| | - Shuang-Quan Zang
- Green
Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
- E-mail:
| | - Thomas C. W. Mak
- Department
of Chemistry, The Chinese University of
Hong Kong, Shatin, New Territories Hong Kong SAR, China
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53
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Jing Z, Li Q, Bai Y, Li Y, Zhang Z. Circular dichroism of spatially complementary chiral nanostructures. NANOTECHNOLOGY 2020; 31:445302. [PMID: 32702677 DOI: 10.1088/1361-6528/aba8be] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Circular dichroism (CD) is widely used in biology, medicine, and physics. Three-dimensional (3D) chiral structures have been extensively studied because of their ability to produce significant CD effects. Previously reported 3D chiral structures are limited due to the complexity of fabrication processes and CD mechanisms. Here, spatially complementary chiral nanostructure (SCCN) arrays, which comprise bottom silver films with zigzag-shaped nanoslit and top complementary silver zigzag-shaped nanowires, are theoretically and experimentally shown to provide the CD effect. SCCN arrays are prepared experimentally by combining electron beam lithography (EBL) with normal electron beam deposition (NEBD) method and by utilizing EBL and NEBD only once. Numerical results demonstrate that localized surface plasmon excited on top complementary silver zigzag-shaped nanowires and surface plasmon polariton excited on bottom silver films with zigzag-shaped nanoslit result in the CD effect of SCCN arrays. In addition, the CD effect can be tuned by changing the width of the top complementary silver zigzag-shaped nanowires. Such type of chiral nanostructures has easy tunability, simple fabrication, and a better understanding of chiral optical response, which provides a new design for spatially chiral optoelectronic devices.
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Affiliation(s)
- Zhimin Jing
- School of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062, People's Republic of China
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54
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Chen Z, Lu X. Self-assembly of plasmonic chiral superstructures with intense chiroptical activity. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abbb3d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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55
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Theory of optical tweezing of dielectric microspheres in chiral host media and its applications. Sci Rep 2020; 10:16481. [PMID: 33020577 PMCID: PMC7536396 DOI: 10.1038/s41598-020-73530-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 08/25/2020] [Indexed: 12/15/2022] Open
Abstract
We report for the first time the theory of optical tweezers of spherical dielectric particles embedded in a chiral medium. We develop a partial-wave (Mie) expansion to calculate the optical force acting on a dielectric microsphere illuminated by a circularly-polarized, highly focused laser beam. When choosing a polarization with the same handedness of the medium, the axial trap stability is improved, thus allowing for tweezing of high-refractive-index particles. When the particle is displaced off-axis by an external force, its equilibrium position is rotated around the optical axis by the mechanical effect of an optical torque. Both the optical torque and the angle of rotation are greatly enhanced in the presence of a chiral host medium when considering radii a few times larger than the wavelength. In this range, the angle of rotation depends strongly on the microsphere radius and the chirality parameter of the host medium, opening the way for a quantitative characterization of both parameters. Measurable angles are predicted even in the case of naturally occurring chiral solutes, allowing for a novel all-optical method to locally probe the chiral response at the nanoscale.
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56
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Cao Z, Gao H, Qiu M, Jin W, Deng S, Wong KY, Lei D. Chirality Transfer from Sub-Nanometer Biochemical Molecules to Sub-Micrometer Plasmonic Metastructures: Physiochemical Mechanisms, Biosensing, and Bioimaging Opportunities. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907151. [PMID: 33252162 DOI: 10.1002/adma.201907151] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 06/21/2020] [Indexed: 05/05/2023]
Abstract
Determining the structural chirality of biomolecules is of vital importance in bioscience and biomedicine. Conventional methods for characterizing molecular chirality, e.g., circular dichroism (CD) spectroscopy, require high-concentration specimens due to the weak electronic CD signals of biomolecules such as amino acids. Artificially designed chiral plasmonic metastructures exhibit strong intrinsic chirality. However, the significant size mismatch between metastructures and biomolecules makes the former unsuitable for chirality-recognition-based molecular discrimination. Fortunately, constructing metallic architectures through molecular self-assembly allows chirality transfer from sub-nanometer biomolecules to sub-micrometer, intrinsically achiral plasmonic metastructures by means of either near-field interaction or chirality inheritance, resulting in hybrid systems with CD signals orders of magnitude larger than that of pristine biomolecules. This exotic property provides a new means to determine molecular chirality at extremely low concentrations (ideally at the single-molecule level). Herein, three strategies of chirality transfer from sub-nanometer biomolecules to sub-micrometer metallic metastructures are analyzed. The physiochemical mechanisms responsible for chirality transfer are elaborated and new fascinating opportunities for employing plasmonic metastructures in chirality-based biosensing and bioimaging are outlined.
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Affiliation(s)
- Zhaolong Cao
- 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, China
| | - Han Gao
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Meng Qiu
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Wei Jin
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, 999077, 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, China
| | - Kwok-Yin Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, 999077, China
| | - Dangyuan Lei
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
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57
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Mokashi-Punekar S, Zhou Y, Brooks SC, Rosi NL. Construction of Chiral, Helical Nanoparticle Superstructures: Progress and Prospects. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905975. [PMID: 31815327 DOI: 10.1002/adma.201905975] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/12/2019] [Indexed: 05/27/2023]
Abstract
Chiral nanoparticle (NP) superstructures, in which discrete NPs are assembled into chiral architectures, represent an exciting and growing class of nanomaterials. Their enantiospecific properties make them promising candidates for a variety of potential applications. Helical NP superstructures are a rapidly expanding subclass of chiral nanomaterials in which NPs are arranged in three dimensions about a screw axis. Their intrinsic asymmetry gives rise to a variety of interesting properties, including plasmonic chiroptical activity in the visible spectrum, and they hold immense promise as chiroptical sensors and as components of optical metamaterials. Herein, a concise history of the foundational conceptual advances that helped define the field of chiral nanomaterials is provided, and some of the major achievements in the development of helical nanomaterials are highlighted. Next, the key methodologies employed to construct these materials are discussed, and specific merits that are offered by each assembly methodology are identified, as well as their potential disadvantages. Finally, some specific examples of the emerging applications of these materials are discussed and some areas of future development and research focus are proposed.
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Affiliation(s)
| | - Yicheng Zhou
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Sydney C Brooks
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
| | - Nathaniel L Rosi
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, 15260, USA
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, 15260, USA
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58
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Zheng ZG, Lu YQ, Li Q. Photoprogrammable Mesogenic Soft Helical Architectures: A Promising Avenue toward Future Chiro-Optics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905318. [PMID: 32483915 DOI: 10.1002/adma.201905318] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 02/24/2020] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
Mesogenic soft materials, having single or multiple mesogen moieties per molecule, commonly exhibit typical self-organization characteristics, which promotes the formation of elegant helical superstructures or supramolecular assemblies in chiral environments. Such helical superstructures play key roles in the propagation of circularly polarized light and display optical properties with prominent handedness, that is, chiro-optical properties. The leveraging of light to program the chiro-optical properties of such mesogenic helical soft materials by homogeneously dispersing photosensitive chiral material into an achiral soft system or covalently connecting photochromic moieties to the molecules has attracted considerable attention in terms of materials, properties, and potential applications and has been a thriving topic in both fundamental science and application engineering. State-of-the-art technologies are described in terms of the material design, synthesis, properties, and modulation of photoprogrammable chiro-optical mesogenic soft helical architectures. Additionally, the scientific issues and technical problems that hinder further development of these materials for use in various fields are outlined and discussed. Such photoprogrammable mesogenic soft helical materials are competitive candidates for use in stimulus-controllable chiro-optical devices with high optical efficiency, stable optical properties, and easy miniaturization, facilitating the future integration and systemization of chiro-optical chips in photonics, photochemistry, biomedical engineering, chemical engineering, and beyond.
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Affiliation(s)
- Zhi-Gang Zheng
- Department of Physics, East China University of Science and Technology, Shanghai, 200237, China
| | - Yan-Qing Lu
- National Laboratory of Solid State Microstructures, Key Laboratory of Intelligent Optical Sensing and Manipulation, Collaborative Innovation Center of Advanced Microstructures and College of Engineering and Applied Sciences, Nanjing University, Nanjing, 210093, China
| | - Quan Li
- Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program, Kent State University, Kent, OH, 44242, USA
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59
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Neubrech F, Hentschel M, Liu N. Reconfigurable Plasmonic Chirality: Fundamentals and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1905640. [PMID: 32077543 DOI: 10.1002/adma.201905640] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/24/2019] [Indexed: 05/17/2023]
Abstract
Molecular chirality is a geometric property that is of great importance in chemistry, biology, and medicine. Recently, plasmonic nanostructures that exhibit distinct chiroptical responses have attracted tremendous interest, given their ability to emulate the properties of chiral molecules with tailored and pronounced optical characteristics. However, the optical chirality of such human-made structures is in general static and cannot be manipulated postfabrication. Herein, different concepts to reconfigure the chiroptical responses of plasmonic nano- and micro-objects are outlined. Depending on the utilized strategies and stimuli, the chiroptical signature, the 3D structural conformation, or both can be reconfigured. Optical devices based on plasmonic nanostructures with reconfigurable chirality possess great potential in practical applications, ranging from polarization conversion elements to enantioselective analysis, chiral sensing, and catalysis.
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Affiliation(s)
- Frank Neubrech
- Kirchhoff-Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120, Heidelberg, Germany
- Max Planck Institute for Intelligent Systems, Heissenbergstraße 3, 70569, Stuttgart, Germany
| | - Mario Hentschel
- 4th Physics Institute and Research Center SCoPE, University of Stuttgart, Pfaffenwaldring 57, 70569, Stuttgart, Germany
| | - Na Liu
- Kirchhoff-Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120, Heidelberg, Germany
- Max Planck Institute for Intelligent Systems, Heissenbergstraße 3, 70569, Stuttgart, Germany
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60
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Kong XT, Besteiro LV, Wang Z, Govorov AO. Plasmonic Chirality and Circular Dichroism in Bioassembled and Nonbiological Systems: Theoretical Background and Recent Progress. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1801790. [PMID: 30260543 DOI: 10.1002/adma.201801790] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 05/25/2018] [Indexed: 05/22/2023]
Abstract
Nature is chiral, thus chirality is a key concept required to understand a multitude of systems in physics, chemistry, and biology. The field of optics offers valuable tools to probe the chirality of nanosystems, including the measurement of circular dichroism, the differential interaction strength between matter and circularly polarized light with opposite helicity. Simultaneously, the use of plasmonic systems with giant light-interaction cross-sections opens new paths to investigate and manipulate systems on the nanoscale. Consequently, the interest in chiral plasmonic and hybrid systems has continually grown in recent years, due to their potential applications in biosensing, polarization-encoded optical communication, polarization-selective chemical reactions, and materials with polarization-dependent light-matter interaction. Experimentally, chiral properties of nanostructures can be either created artificially using modern fabrication techniques involving inorganic materials, or borrowed from nature using bioassembly or biomolecular templating. Herein, the recent progress in the field of plasmonic chirality is summarized, with a focus on both the theoretical background and the experimental advances in the study of chirality in various systems, including molecular-plasmonic assemblies, chiral plasmonic nanostructures, chiral assemblies of interacting plasmonic nanoparticles, and chiral metal metasurfaces and metamaterials. The growth prospects of this field are also discussed.
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Affiliation(s)
- Xiang-Tian Kong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
- Department of Physics and Astronomy, Ohio University, Athens, OH, 45701, USA
| | - Lucas V Besteiro
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
- Centre Énergie Matériaux et Télécommunications, Institut National de la Recherche Scientifique, Varennes, QC J3X 1S2, Canada
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 610054, China
| | - Alexander O Govorov
- Department of Physics and Astronomy, Ohio University, Athens, OH, 45701, USA
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61
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Mun J, Kim M, Yang Y, Badloe T, Ni J, Chen Y, Qiu CW, Rho J. Electromagnetic chirality: from fundamentals to nontraditional chiroptical phenomena. LIGHT, SCIENCE & APPLICATIONS 2020; 9:139. [PMID: 32922765 PMCID: PMC7463035 DOI: 10.1038/s41377-020-00367-8] [Citation(s) in RCA: 115] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 06/25/2020] [Accepted: 07/08/2020] [Indexed: 05/05/2023]
Abstract
Chirality arises universally across many different fields. Recent advancements in artificial nanomaterials have demonstrated chiroptical responses that far exceed those found in natural materials. Chiroptical phenomena are complicated processes that involve transitions between states with opposite parities, and solid interpretations of these observations are yet to be clearly provided. In this review, we present a comprehensive overview of the theoretical aspects of chirality in light, nanostructures, and nanosystems and their chiroptical interactions. Descriptions of observed chiroptical phenomena based on these fundamentals are intensively discussed. We start with the strong intrinsic and extrinsic chirality in plasmonic nanoparticle systems, followed by enantioselective sensing and optical manipulation, and then conclude with orbital angular momentum-dependent responses. This review will be helpful for understanding the mechanisms behind chiroptical phenomena based on underlying chiral properties and useful for interpreting chiroptical systems for further studies.
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Affiliation(s)
- Jungho Mun
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673 Korea
| | - Minkyung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, 37673 Korea
| | - Younghwan Yang
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, 37673 Korea
| | - Trevon Badloe
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, 37673 Korea
| | - Jincheng Ni
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583 Singapore
| | - Yang Chen
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583 Singapore
| | - Cheng-Wei Qiu
- Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117583 Singapore
| | - Junsuk Rho
- Department of Chemical Engineering, Pohang University of Science and Technology, Pohang, 37673 Korea
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, 37673 Korea
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62
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Nguyen L, Dass M, Ober M, Besteiro LV, Wang ZM, Nickel B, Govorov AO, Liedl T, Heuer-Jungemann A. Chiral Assembly of Gold-Silver Core-Shell Plasmonic Nanorods on DNA Origami with Strong Optical Activity. ACS NANO 2020; 14:7454-7461. [PMID: 32459462 PMCID: PMC7611928 DOI: 10.1021/acsnano.0c03127] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The spatial organization of metal nanoparticles has become an important tool for manipulating light in nanophotonic applications. Silver nanoparticles, particularly silver nanorods, have excellent plasmonic properties but are prone to oxidation and are therefore inherently unstable in aqueous solutions and salt-containing buffers. Consequently, gold nanoparticles have often been favored, despite their inferior optical performance. Bimetallic, i.e., gold-silver core-shell nanoparticles, can resolve this issue. We present a method for synthesizing highly stable gold-silver core-shell NRs that are instantaneously functionalized with DNA, enabling chiral self-assembly on DNA origami. The silver shell gives rise to an enhancement of plasmonic properties, reflected here in strongly increased circular dichroism, as compared to pristine gold nanorods. Gold-silver nanorods are ideal candidates for plasmonic sensing with increased sensitivity as needed in pathogen RNA or antibody testing for nonlinear optics and light-funneling applications in surface enhanced Raman spectroscopy. Furthermore, the control of interparticle orientation enables the study of plasmonic phenomena, in particular, synergistic effects arising from plasmonic coupling of such bimetallic systems.
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Affiliation(s)
- Linh Nguyen
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Mihir Dass
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Martina Ober
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Lucas V. Besteiro
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- Centre Énergie Matériaux et Télécommunications, Institut National de la Recherche Scientifique, 1650 Boul. Lionel Boulet, Varennes, QC J3X 1S2, Canada
| | - Zhiming M. Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Bert Nickel
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Alexander O. Govorov
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, United States
| | - Tim Liedl
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
| | - Amelie Heuer-Jungemann
- Faculty of Physics and Center for NanoScience (CeNS), Ludwig-Maximilians-University, Geschwister-Scholl-Platz 1, 80539 Munich, Germany
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63
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Jeong KJ, Lee DK, Tran VT, Wang C, Lv J, Park J, Tang Z, Lee J. Helical Magnetic Field-Induced Real-Time Plasmonic Chirality Modulation. ACS NANO 2020; 14:7152-7160. [PMID: 32298072 DOI: 10.1021/acsnano.0c02026] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The astrophysical phenomenon of mimetic helical magnetic field (hB)-assisted self-assembly is herein introduced to build helical superstructures that display chiroptical properties. As a building block, magnetoplasmonic (MagPlas) Ag@Fe3O4 core-shell nanoparticles are used to guide plasmonic Ag nanoparticles onto a helical magnetic flux. The chirality of the assembled helical structures and tailored circular dichroism are successfully tuned in real time, and the handedness of the assembled structures is dynamically switched by the hB at the millisecond level, which is at least 6000-fold faster than other template-assisted methods. The peak position of circular dichroism can be reconfigured by altering the plasmonic resonance or coupling by controlling the size of the Ag core and magnetic flux density. The hB-induced chirality modulation represents a method to control the polarization state of light at the nexus of plasmonics, magnetic self-assembly, colloidal science, liquid crystals, and chirality. It presents active and dynamic chiral assemblies of magnetoplasmonic nanomaterials, enabling further practical applications in optical devices.
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Affiliation(s)
- Ki-Jae Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46279, Republic of Korea
| | - Dong Kyu Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46279, Republic of Korea
| | - Van Tan Tran
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 10000, Vietnam
| | - Caifeng Wang
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46279, Republic of Korea
| | - Jiawei Lv
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jinhae Park
- Department of Mathematics, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Zhiyong Tang
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jaebeom Lee
- Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
- Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
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64
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Harvey TR, Henke JW, Kfir O, Lourenço-Martins H, Feist A, García de Abajo FJ, Ropers C. Probing Chirality with Inelastic Electron-Light Scattering. NANO LETTERS 2020; 20:4377-4383. [PMID: 32383890 DOI: 10.1021/acs.nanolett.0c01130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Circular dichroism spectroscopy is an essential technique for understanding molecular structure and magnetic materials; however, spatial resolution is limited by the wavelength of light, and sensitivity sufficient for single-molecule spectroscopy is challenging. We demonstrate that electrons can efficiently measure the interaction between circularly polarized light and chiral materials with deeply subwavelength resolution. By scanning a nanometer-sized focused electron beam across an optically excited chiral nanostructure and measuring the electron energy spectrum at each probe position, we produce a high-spatial-resolution map of near-field dichroism. This technique offers a nanoscale view of a fundamental symmetry and could be employed as "photon staining" to increase biomolecular material contrast in electron microscopy.
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Affiliation(s)
- Tyler R Harvey
- Georg-August-Universität Göttingen, D-37077 Göttingen, Germany
| | - Jan-Wilke Henke
- Georg-August-Universität Göttingen, D-37077 Göttingen, Germany
| | - Ofer Kfir
- Georg-August-Universität Göttingen, D-37077 Göttingen, Germany
| | | | - Armin Feist
- Georg-August-Universität Göttingen, D-37077 Göttingen, Germany
| | - F Javier García de Abajo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain
- ICREA-Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Claus Ropers
- Georg-August-Universität Göttingen, D-37077 Göttingen, Germany
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Yang L, Liu J, Sun P, Ni Z, Ma Y, Huang Z. Chiral Ligand-Free, Optically Active Nanoparticles Inherently Composed of Chiral Lattices at the Atomic Scale. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001473. [PMID: 32419372 DOI: 10.1002/smll.202001473] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 03/30/2020] [Indexed: 06/11/2023]
Abstract
Bulk metals lack chirality. Recently, metals have been sculptured with metastable chirality varying from the micro- to nano-scale. The manipulation of molecular chirality could be novelly performed using metals composed of chiral lattices at atomic scales (i.e., chiral nanoparticles or CNPs) if one could fundamentally understand the interactions between molecules and the chiral metal lattices. The incorporation of chiral ligands has been generally adapted to form metal CNPs. However, post-fabrication removal of chiral ligands usually causes relaxation of the metastable chiral lattices to thermodynamically stable achiral structures, and thus the coexisting chiral ligands will unavoidably disturb or screen the interactions of interest. Herein, a concept of metal CNPs that are free of chiral ligands and consist of atomically chiral lattices is introduced. Without chiral ligands, shear forces applied by substrate rotation along with the translation of incident atoms lead to imposing the metastable chiral lattices onto metals. Metal CNPs show not only the chiroptical effect but the enantiospecific interactions of chiral lattices and molecules. These two unique chiral effects have resulted in the applications of enantiodifferentiation and asymmetric synthesis. Prospectively, the extension in composition space and constituent engineering will apply alloy CNPs to enantiodiscrimination, enantioseperation, bio-imaging, bio-sensing, and asymmetric catalysis.
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Affiliation(s)
- Lin Yang
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, 9F, The Industrialization Complex of Shenzhen Virtual University Park, No. 2 Yuexing Third Road, South Zone, Hi-Tech Industrial Park Nanshan District, Shenzhen, Guangdong, 518057, China
| | - Junjun Liu
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, 9F, The Industrialization Complex of Shenzhen Virtual University Park, No. 2 Yuexing Third Road, South Zone, Hi-Tech Industrial Park Nanshan District, Shenzhen, Guangdong, 518057, China
| | - Peng Sun
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Ziyue Ni
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Yicong Ma
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
| | - Zhifeng Huang
- Department of Physics, Hong Kong Baptist University (HKBU), Kowloon Tong, Kowloon, Hong Kong SAR, China
- HKBU Institute of Research and Continuing Education, 9F, The Industrialization Complex of Shenzhen Virtual University Park, No. 2 Yuexing Third Road, South Zone, Hi-Tech Industrial Park Nanshan District, Shenzhen, Guangdong, 518057, China
- Institute of Advanced Materials, State Key Laboratory of Environmental and Biological Analysis, Golden Meditech Centre for NeuroRegeneration Sciences, HKBU, Kowloon Tong, Kowloon, Hong Kong SAR, China
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66
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Goerlitzer ESA, Mohammadi R, Nechayev S, Volk K, Rey M, Banzer P, Karg M, Vogel N. Chiral Surface Lattice Resonances. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001330. [PMID: 32319171 DOI: 10.1002/adma.202001330] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/23/2020] [Accepted: 03/24/2020] [Indexed: 05/05/2023]
Abstract
Collective excitation of periodic arrays of metallic nanoparticles by coupling localized surface plasmon resonances to grazing diffraction orders leads to surface lattice resonances with narrow line width. These resonances may find numerous applications in optical sensing and information processing. Here, a new degree of freedom of surface lattice resonances is experimentally investigated by demonstrating handedness-dependent excitation of surface lattice resonances in arrays of chiral plasmonic crescents. The self-assembly of particles used as mask and modified colloidal lithography is applied to produce arrays of planar and 3D gold crescents over large areas. The excitation of surface lattice resonances as a function of the interparticle distance and the degree of order within the arrays is investigated. The chirality of the individual 3D crescents leads to the formation of chiral lattice modes, that is, surface lattice resonances that exhibit optical activity.
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Affiliation(s)
- Eric S A Goerlitzer
- Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany
| | - Reza Mohammadi
- Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany
| | - Sergey Nechayev
- Max Planck Institute for the Science of Light, Staudtstr. 2, Erlangen, D-91058, Germany
- Institute of Optics, Information and Photonics, Friedrich-Alexander University Erlangen-Nürnberg, Staudtstr. 7/B2, Erlangen, D-91058, Germany
| | - Kirsten Volk
- Institut für Physikalische Chemie I: Kolloide und Nanooptik, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, Düsseldorf, D-40225, Germany
| | - Marcel Rey
- Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany
| | - Peter Banzer
- Max Planck Institute for the Science of Light, Staudtstr. 2, Erlangen, D-91058, Germany
- Institute of Optics, Information and Photonics, Friedrich-Alexander University Erlangen-Nürnberg, Staudtstr. 7/B2, Erlangen, D-91058, Germany
| | - Matthias Karg
- Institut für Physikalische Chemie I: Kolloide und Nanooptik, Heinrich-Heine-Universität Düsseldorf, Universitätsstr. 1, Düsseldorf, D-40225, Germany
| | - Nicolas Vogel
- Institute of Particle Technology, Friedrich-Alexander University Erlangen-Nürnberg, Cauerstraße 4, Erlangen, D-91058, Germany
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67
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Khatri DS, Li Y, Chen J, Stocks AE, Kwizera EA, Huang X, Argyropoulos C, Hoang T. Plasmon-assisted random lasing from a single-mode fiber tip. OPTICS EXPRESS 2020; 28:16417-16426. [PMID: 32549465 PMCID: PMC7340382 DOI: 10.1364/oe.391650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 06/11/2023]
Abstract
Random lasing occurs as the result of a coherent optical feedback from multiple scattering centers. Here, we demonstrate that plasmonic gold nanostars are efficient light scattering centers, exhibiting strong field enhancement at their nanotips, which assists a very narrow bandwidth and highly amplified coherent random lasing with a low lasing threshold. First, by embedding plasmonic gold nanostars in a rhodamine 6G dye gain medium, we observe a series of very narrow random lasing peaks with full-width at half-maximum ∼ 0.8 nm. In contrast, free rhodamine 6G dye molecules exhibit only a single amplified spontaneous emission peak with a broader linewidth of 6 nm. The lasing threshold for the dye with gold nanostars is two times lower than that for a free dye. Furthermore, by coating the tip of a single-mode optical fiber with gold nanostars, we demonstrate a collection of random lasing signal through the fiber that can be easily guided and analyzed. Time-resolved measurements show a significant increase in the emission rate above the lasing threshold, indicating a stimulated emission process. Our study provides a method for generating random lasing in the nanoscale with low threshold values that can be easily collected and guided, which promise a range of potential applications in remote sensing, information processing, and on-chip coherent light sources.
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Affiliation(s)
- Dipendra S. Khatri
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - Ying Li
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Jiyang Chen
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - Anna Elizabeth Stocks
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | | | - Xiaohua Huang
- Department of Chemistry, The University of Memphis, Memphis, TN 38152, USA
| | - Christos Argyropoulos
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Thang Hoang
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
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68
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Loretan M, Domljanovic I, Lakatos M, Rüegg C, Acuna GP. DNA Origami as Emerging Technology for the Engineering of Fluorescent and Plasmonic-Based Biosensors. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E2185. [PMID: 32397498 PMCID: PMC7254321 DOI: 10.3390/ma13092185] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 04/30/2020] [Accepted: 05/05/2020] [Indexed: 12/23/2022]
Abstract
DNA nanotechnology is a powerful and promising tool for the development of nanoscale devices for numerous and diverse applications. One of the greatest potential fields of application for DNA nanotechnology is in biomedicine, in particular biosensing. Thanks to the control over their size, shape, and fabrication, DNA origami represents a unique opportunity to assemble dynamic and complex devices with precise and predictable structural characteristics. Combined with the addressability and flexibility of the chemistry for DNA functionalization, DNA origami allows the precise design of sensors capable of detecting a large range of different targets, encompassing RNA, DNA, proteins, small molecules, or changes in physico-chemical parameters, that could serve as diagnostic tools. Here, we review some recent, salient developments in DNA origami-based sensors centered on optical detection methods (readout) with a special emphasis on the sensitivity, the selectivity, and response time. We also discuss challenges that still need to be addressed before this approach can be translated into robust diagnostic devices for bio-medical applications.
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Affiliation(s)
- Morgane Loretan
- Photonic Nanosystems, Department of Physics, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 3, PER08, 1700 Fribourg, Switzerland; (M.L.); (G.P.A.)
| | - Ivana Domljanovic
- Laboratory of Experimental and Translational Oncology, Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, PER17, 1700 Fribourg, Switzerland;
| | - Mathias Lakatos
- Photonic Nanosystems, Department of Physics, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 3, PER08, 1700 Fribourg, Switzerland; (M.L.); (G.P.A.)
| | - Curzio Rüegg
- Laboratory of Experimental and Translational Oncology, Department of Oncology, Microbiology and Immunology, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 18, PER17, 1700 Fribourg, Switzerland;
| | - Guillermo P. Acuna
- Photonic Nanosystems, Department of Physics, Faculty of Science and Medicine, University of Fribourg, Chemin du Musée 3, PER08, 1700 Fribourg, Switzerland; (M.L.); (G.P.A.)
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69
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Rafiei Miandashti A, Khosravi Khorashad L, Kordesch ME, Govorov AO, Richardson HH. Experimental and Theoretical Observation of Photothermal Chirality in Gold Nanoparticle Helicoids. ACS NANO 2020; 14:4188-4195. [PMID: 32176469 DOI: 10.1021/acsnano.9b09062] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Single-particle spectroscopy is central to the characterization of plasmonic nanostructures and understanding of light-matter interactions in chiral nanosystems. Although chiral plasmonic nanostructures are generally characterized by their circular differential extinction and scattering, single-particle absorption studies can extend our understanding of light-matter interactions. Here, we introduce an experimental observation of photothermal chirality which originated from circular differential absorption of chiral plasmonic nanostructures. Using luminescence ratio thermometry, we identify the optical and photothermal handedness and an absolute temperature difference of 6 K under the right and left circularly polarized light. We observe a circular differential extinction parameter (gext) of -0.13 in colloidally prepared gold helicoids and compare our findings with numerical simulations using finite element methods. The simulated data showed that circular differential absorption and the maximum temperature of a small cluster of helical nanoparticles are polarization-dependent. We observed an intensity-dependent photothermal g-factor from chiral helicoids that decreases slightly at higher temperatures. We also measure a range of optical g-factors from several gold helicoids, which are attributed to the heterogeneity of helicoids in nanoparticles during synthesis. The principles of differential photothermal response of chiral nanomaterials and heat generation described here can be potentially used for thermal photocatalysis, energy conversion, and electronic applications.
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Affiliation(s)
- Ali Rafiei Miandashti
- Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, United States
| | | | - Martin E Kordesch
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, United States
| | - Alexander O Govorov
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, United States
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Hugh H Richardson
- Department of Chemistry and Biochemistry, Ohio University, Athens, Ohio 45701, United States
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70
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Trotsiuk L, Muravitskaya A, Kulakovich O, Guzatov D, Ramanenka A, Kelestemur Y, Demir HV, Gaponenko S. Plasmon-enhanced fluorescence in gold nanorod-quantum dot coupled systems. NANOTECHNOLOGY 2020; 31:105201. [PMID: 31751975 DOI: 10.1088/1361-6528/ab5a0e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Plasmon-exciton coupling is of great importance to many optical devices and applications. One of the coupling manifestations is plasmon-enhanced fluorescence. Although this effect is demonstrated in numerous experimental and theoretical works, there are different particle shapes for which this effect is not fully investigated. In this work electrostatic complexes of gold nanorods and CdSe/CdZnS quantum dots were studied. Double-resonant gold nanorods have an advantage of the simultaneous enhancement of the absorption and emission when the plasmon bands match the excitation and fluorescence wavelengths of an emitter. A relationship between the concentration of quantum dots in the complexes and the enhancement factor was established. It was demonstrated that the enhancement factor is inversely proportional to the concentration of quantum dots. The maximal fluorescence enhancement by 10.8 times was observed in the complex with the smallest relative concentration of 2.5 quantum dots per rod and approximately 5 nm distance between them. Moreover, the influence of quantum dot location on the gold nanorod surface plays an important role. Theoretical study and experimental data indicate that only the position near the nanorod ends provides the enhancement. At the same time, the localization of quantum dots on the sides of the nanorods leads to the fluorescence quenching.
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Affiliation(s)
- Liudmila Trotsiuk
- B.I. Stepanov Institute of Physics, National Academy of Sciences of Belarus, Minsk 220072, Belarus
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71
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Ali R, Pinheiro FA, Dutra RS, Rosa FSS, Maia Neto PA. Enantioselective manipulation of single chiral nanoparticles using optical tweezers. NANOSCALE 2020; 12:5031-5037. [PMID: 32067004 DOI: 10.1039/c9nr09736h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We put forward an enantioselective method for chiral nanoparticles using optical tweezers. We demonstrate that the optical trapping force in a typical, realistic optical tweezing setup with circularly-polarized trapping beams is sensitive to the chirality of core-shell nanoparticles, allowing for efficient enantioselection. It turns out that the handedness of the trapped particles can be selected by choosing the appropriate circular polarization of the trapping beam. The chirality of each individual trapped nanoparticle can be characterized by measuring the rotation of the equilibrium position under the effect of a transverse Stokes drag force. We show that the chirality of the shell gives rise to an additional twist, leading to a strong enhancement of the optical torque driving the rotation. Both methods are shown to be robust against variations of size and material parameters, demonstrating that they are particularly useful in (but not restricted to) several situations of practical interest in chiral plasmonics, where enantioselection and characterization of single chiral nanoparticles, each and every one with its unique handedness and optical properties, are in order. In particular, our method could be employed to unveil the chiral response arising from disorder in individual plasmonic raspberries, synthesized by close-packing a large number of metallic nanospheres around a dielectric core.
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Affiliation(s)
- Rfaqat Ali
- Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil.
| | - Felipe A Pinheiro
- Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil.
| | - Rafael S Dutra
- LISComp-IFRJ, Instituto Federal de Educação, Ciência e Tecnologia, Rua Sebastião de Lacerda, Paracambi, RJ 26600-000, Brazil
| | - Felipe S S Rosa
- Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil.
| | - Paulo A Maia Neto
- Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil.
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72
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Tian X, Sun S, Leong ESP, Zhu G, Teng J, Zhang B, Fang Y, Ni W, Zhang CY. Fano-like chiroptical response in plasmonic heterodimer nanostructures. Phys Chem Chem Phys 2020; 22:3604-3610. [PMID: 31995069 DOI: 10.1039/c9cp05600a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Plasmonic chirality has attracted more and more attention recently due to the enhanced chiroptical response and its potential applications in biosensing. Plasmonic Fano resonance arises from the interference between a dark narrow resonance and a bright broad resonance, and it provides a new paradigm to control the plasmon mode interactions. Even though a strong circular dichroism (CD) effect has been predicted in chiral nanostructures with a Fano resonance, there are few experimental studies, and the correlation between the two effects is unclear. In this research, we investigate these two effects in plasmonic heterodimer nanorods in the same spectral range. We find that the heterodimer nanostructure exhibits a Fano-like resonance and Fano-like chiroptical response, both of which are correlated with the coupling between a super-radiant electric dipole and a sub-radiant magnetic dipole mode. Due to the interference nature of the Fano resonance, the Fano-like chiroptical response exhibits distinctively sharp features in a narrow spectral range. This Fano-like chiroptical response can be explained by a modified chiral molecule theory and a simplified coupled electric-magnetic dipole model. This research may provide new insight into the physics picture of plasmonic chirality and paves the way for the development of sensitive plasmonic sensors.
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Affiliation(s)
- Xiaorui Tian
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, China.
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73
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Abstract
Chiral nanohole array (CNA) films are fabricated by a simple and efficient shadow sphere lithography (SSL) method and achieve label-free enantiodiscrimination of biomolecules and drug molecules at the picogram level. The intrinsic mirror symmetry of the structure is broken by three subsequent depositions onto non-close packed nanosphere monolayers with different polar and azimuthal angles. Giant chiro-optical responses with a transmission as high as 45%, a chirality of 21°μm-1, and a g-factor of 0.17, respectively, are generated, which are among the largest values that have been reported in the literature. Such properties are due to the local rotating current density generated by a surface plasmon polariton as well as a strong local rotating field produced by localized surface plasmon resonance, which leads to the excitation of substantial local superchiral fields. The 70 nm-thick CNAs can achieve label-free enantiodiscrimination of biomolecules and drug molecules at the picogram level as demonstrated experimentally. All these advantages make the CNAs ready for low-cost, high-performance, and ultracompact polarization converters and label-free chiral sensors.
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Affiliation(s)
- Bin Ai
- School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, P.R. China 400044. and Chongqing Key Laboratory of Bio perception & Intelligent Information Processing, Chongqing, P.R. China 400044
| | - Hoang M Luong
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, USA
| | - Yiping Zhao
- Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, USA
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74
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Luo J, Cheng Y, Gong ZW, Wu K, Zhou Y, Chen HX, Gauthier M, Cheng YZ, Liang J, Zou T. Self-Assembled Peptide Functionalized Gold Nanopolyhedrons with Excellent Chiral Optical Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:600-608. [PMID: 31885276 DOI: 10.1021/acs.langmuir.9b03366] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Because of the unique optical properties of gold nanomaterials, the preparation of gold nanomaterials with excellent chirality has received extensive attention. In order to develop a simple fabrication method for three-dimensional chiral Au nanostructures with a size of several hundred nanometers, chiral gold nanoparticles were developed to transfer chirality of a peptide to gold nanoparticles. In this study, the controlled synthesis of asymmetric gold nanopolyhedrons was achieved. The asymmetric gold nanopolyhedrons prepared via peptide-directed growth can exhibit strong circular dichroism (∼±50 mdeg) couplets in the visible range (500-600 nm). Also, the morphology of chiral Au nanododecahedrons-peptide particles showed distorted and asymmetric properties. In order to prove that the size and spatial structure of gold nanopolyhedrons have an influence on their chiral optical properties, Au nanotrioctahedron-peptide particles were prepared by using Au nanotrioctahedrons with different morphologies. Au nanotrioctahedron-peptide particles also exhibited circular dichromatic couplets in the visible region.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Ju Liang
- Chemical Engineering and Pharmaceutics School , Henan University of Science and Technology , Luoyang 471023 , P. R. China
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75
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Ma F, Zhang Q, Zhang CY. Nanomaterial-based biosensors for DNA methyltransferase assay. J Mater Chem B 2020; 8:3488-3501. [DOI: 10.1039/c9tb02458a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
We review the recent advances in the development of nanomaterial-based biosensors for DNA methyltransferase assay.
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Affiliation(s)
- Fei Ma
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Qian Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
| | - Chun-yang Zhang
- College of Chemistry
- Chemical Engineering and Materials Science
- Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education
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76
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Wang M, Dong J, Zhou C, Xie H, Ni W, Wang S, Jin H, Wang Q. Reconfigurable Plasmonic Diastereomers Assembled by DNA Origami. ACS NANO 2019; 13:13702-13708. [PMID: 31550129 DOI: 10.1021/acsnano.9b06734] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Herein, we report self-assembled reconfigurable plasmonic diastereomers based on DNA nanotechnology. Up to three plasmonic chiral centers were organized by dynamic DNA origami platforms. Meanwhile, each chiral center could be individually controlled to switch between left-handed and right-handed states. Thus, complex and reconfigurable chiral plasmonic diastereomers with eight plasmonic stereoisomers were achieved, driven by programmed DNA reactions. With these plasmonic diastereomers, we demonstrated the existence of strong cross-talk near-field coupling among chiral centers, and the coupling of chiral centers could substantially contribute to the overall CD signals. Our work provides an important bottom-up approach for building complex and dynamic chiral plasmonics and for probing the interactions of plasmonic chiral centers.
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Affiliation(s)
- Meng Wang
- Institute of New Materials and Industrial Technologies , Wenzhou University , Wenzhou 325035 , People's Republic of China
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Key Laboratory of Functional Molecular Imaging, Division of Nanobiomedicine and i-Lab , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , People's Republic of China
| | - Jinyi Dong
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Key Laboratory of Functional Molecular Imaging, Division of Nanobiomedicine and i-Lab , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , People's Republic of China
| | - Chao Zhou
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Key Laboratory of Functional Molecular Imaging, Division of Nanobiomedicine and i-Lab , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , People's Republic of China
| | - Hao Xie
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology , Soochow University , Suzhou 215006 , People's Republic of China
| | - Weihai Ni
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology , Soochow University , Suzhou 215006 , People's Republic of China
| | - Shun Wang
- Institute of New Materials and Industrial Technologies , Wenzhou University , Wenzhou 325035 , People's Republic of China
| | - Huile Jin
- Institute of New Materials and Industrial Technologies , Wenzhou University , Wenzhou 325035 , People's Republic of China
| | - Qiangbin Wang
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Key Laboratory of Functional Molecular Imaging, Division of Nanobiomedicine and i-Lab , Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences , Suzhou 215123 , People's Republic of China
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77
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Zhao SX, Zhang W. Plasmonic chirality of one-dimensional arrays of twisted nanorod dimers: the cooperation of local structure and collective effect. OPTICS EXPRESS 2019; 27:38614-38623. [PMID: 31878625 DOI: 10.1364/oe.382259] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 12/07/2019] [Indexed: 06/10/2023]
Abstract
We study the chiral optical properties of one-dimensional arrays of plasmonic twisted nanorod dimers. By using finite-difference time-domain (FDTD) simulation and analytical approach based on the coupled dipole model, we have revealed unusual chiral optical responses due to the cooperation of local structure and collective effect. It is found that one-dimensional arrays of achiral unit may show chiral optical responses. Moreover, besides the classical bisignate lineshape of circular dichroism (CD) induced by localized surface plasmon resonance, a new CD peak/dip appears, originating from Wood anomaly. Near the Wood anomaly frequency, the optimal twist angle to achieve the highest CD has been shifted compared with that of single twisted nanorod dimer. The universal geometric configurations of the strongest chiral optical responses have been found.
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78
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Ahn HY, Yoo S, Cho NH, Kim RM, Kim H, Huh JH, Lee S, Nam KT. Bioinspired Toolkit Based on Intermolecular Encoder toward Evolutionary 4D Chiral Plasmonic Materials. Acc Chem Res 2019; 52:2768-2783. [PMID: 31536328 DOI: 10.1021/acs.accounts.9b00264] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Over the last two decades, nanophotonics, including plasmonics and metamaterials, have promised compelling opportunities for exotic control over light-matter interactions. The strong chiral light-matter interaction is a representative example. Three-dimensional (3D) chirality has existed naturally only in organic molecules and bio-organisms, but a negligible chiroptic effect was attained with these naturally occurring materials because of their small absorption cross sections. However, inspired by biological chirality, nanophotonic chiral materials have greatly expanded the design space of accessible chiroptic effects (e.g., pushing the chiral light-matter interaction to an exceptional regime, such as a broad-band circular polarizer, negative refractive index, and sensitive chiral sensing). Nevertheless, it is still a challenge to achieve precisely defined and dynamically reconfigurable chiral morphologies that further increase the chiroptic effect. Biological systems continue to inspire approaches to the design and synthesis of precisely defined 3D nanostructures. In particular, a living organism can program the evolutionary pathway of highly complexed 3D chiral morphology precisely from the molecular scale to the macroscopic scale while simultaneously enabling dynamic reconfiguration of their chirality. What if we could harness the power of biological selectivity and evolutionary capability in synthesizing chiral plasmonic materials? We envisioned that platform technology mimicking biological principles would enable control of 3D chiral structures for effective plasmonic interactions with polarized light and further impart the concept of time-dependent evolution (3D + 1D = 4D) to bring about responsive and dynamic changes in chiral plasmonics. In this Account, we review our efforts to develop the biomolecule-based synthesis of 3D chiral plasmonic materials and share the vision that as in biological systems, chirality can be programmed at the molecular level and hierarchically transferred at multiple scales to develop macroscopic chirality. Accompanied by a biomimetic time-dependent chirality of singular plasmonic nanometals, we also summarize recent achievements in the chemistry and nanophotonics communities pursuing 4D plasmonics that are closely related to our research. The biomimetic and bioinspired approaches discussed in this Account will provide new synthetic insights into implementing chiral nanomaterials and extend the range of accessible nanophotonic design. We hope that the molecular encoding approach will be useful to achieve dynamic light-matter interactions at unprecedented dimensions, time scales, and chirality.
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Affiliation(s)
- Hyo-Yong Ahn
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea
| | - SeokJae Yoo
- Department of Physics, Korea University, Seoul 02841, Korea
- Department of Physics, University of California, Berkeley, California 94720, United States
| | - Nam Heon Cho
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea
| | - Ryeong Myeong Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea
| | - Hyeohn Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea
| | - Ji-Hyeok Huh
- KU-KIST Graduate School of Converging Science and Technology and Department of Biomicrosystem Technology, Korea University, Seoul 02841, Korea
| | - Seungwoo Lee
- KU-KIST Graduate School of Converging Science and Technology and Department of Biomicrosystem Technology, Korea University, Seoul 02841, Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Korea
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79
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Mokashi-Punekar S, Walsh TR, Rosi NL. Tuning the Structure and Chiroptical Properties of Gold Nanoparticle Single Helices via Peptide Sequence Variation. J Am Chem Soc 2019; 141:15710-15716. [DOI: 10.1021/jacs.9b08798] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Tiffany R. Walsh
- Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
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80
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Karst J, Cho NH, Kim H, Lee HE, Nam KT, Giessen H, Hentschel M. Chiral Scatterometry on Chemically Synthesized Single Plasmonic Nanoparticles. ACS NANO 2019; 13:8659-8668. [PMID: 31294546 DOI: 10.1021/acsnano.9b04046] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Wide-spread applications of nanoparticles require large-scale fabrication techniques. Being intrinsically scalable, bottom-up nanoparticle synthesis shows an ever-growing control over particle morphology, enabling even chirally selective shapes. Significant efforts have been undertaken to refine the synthesis in order to decrease the structural spread of the particles and to purify and maximize the resulting handedness. So far, imaging technologies such as electron microscopy are mostly used to investigate the quality of the synthesis. However, for nanophotonic and plasmonic applications, the optical properties are, in fact, key. In this work, we show that single particle chiral scatterometry holds great potential as a feedback to characterize the (chir-)optical quality of chemically synthesized nanoparticles. The spectra of single helicoid nanoparticles reveal a diverse set of chiroptical responses with hugely varying absolute chiral asymmetry in spite of the well-controlled morphology of the particles. Averaging over the single nanoparticles reproduces the solution ensemble measurement remarkably well. This demonstrates that the single particles, despite their morphological and consequently chiroptical differences, exhibit a clearly pronounced chiral spectral and structural feature. We find that the g-factor, that is, the degree of asymmetry of chiral light scattering of single nanoparticles can be up to 4 times larger than that for the ensemble. This proves that chiral scatterometry can be a highly important optical feedback for bottom-up nanoparticle synthesis as it reveals that the asymmetry of the ensemble solution can be further increased and maximized by appropriate refinement methods or by postfabrication purification.
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Affiliation(s)
- Julian Karst
- 4th Physics Institute and Research Center SCoPE , University of Stuttgart , Pfaffenwaldring 57 , 70569 Stuttgart , Germany
| | - Nam Heon Cho
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Republic of Korea
| | - Hyeohn Kim
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Republic of Korea
| | - Hye-Eun Lee
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Republic of Korea
| | - Ki Tae Nam
- Department of Materials Science and Engineering , Seoul National University , Seoul 08826 , Republic of Korea
| | - Harald Giessen
- 4th Physics Institute and Research Center SCoPE , University of Stuttgart , Pfaffenwaldring 57 , 70569 Stuttgart , Germany
| | - Mario Hentschel
- 4th Physics Institute and Research Center SCoPE , University of Stuttgart , Pfaffenwaldring 57 , 70569 Stuttgart , Germany
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81
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Trapani M, Castriciano MA, Romeo A, De Luca G, Machado N, Howes BD, Smulevich G, Scolaro LM. Nanohybrid Assemblies of Porphyrin and Au 10 Cluster Nanoparticles. NANOMATERIALS 2019; 9:nano9071026. [PMID: 31323800 PMCID: PMC6669571 DOI: 10.3390/nano9071026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 07/12/2019] [Accepted: 07/16/2019] [Indexed: 12/26/2022]
Abstract
The interaction between gold sub-nanometer clusters composed of ten atoms (Au10) and tetrakis(4-sulfonatophenyl)porphyrin (TPPS) was investigated through various spectroscopic techniques. Under mild acidic conditions, the formation, in aqueous solutions, of nanohybrid assemblies of porphyrin J-aggregates and Au10 cluster nanoparticles was observed. This supramolecular system tends to spontaneously cover glass substrates with a co-deposit of gold nanoclusters and porphyrin nanoaggregates, which exhibit circular dichroism (CD) spectra reflecting the enantiomorphism of histidine used as capping and reducing agent. The morphology of nanohybrid assemblies onto a glass surface was revealed by atomic force microscopy (AFM), and showed the concomitant presence of gold nanoparticles with an average size of 130 nm and porphyrin J-aggregates with lengths spanning from 100 to 1000 nm. Surface-enhanced Raman scattering (SERS) was observed for the nanohybrid assemblies.
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Affiliation(s)
- Mariachiara Trapani
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy
| | - Maria Angela Castriciano
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy.
| | - Andrea Romeo
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy
| | - Giovanna De Luca
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy
| | - Nelson Machado
- Dipartimento di Chimica "Ugo Schiff", Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino (Fi), Italy
| | - Barry D Howes
- Dipartimento di Chimica "Ugo Schiff", Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino (Fi), Italy
| | - Giulietta Smulevich
- Dipartimento di Chimica "Ugo Schiff", Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino (Fi), Italy
| | - Luigi Monsù Scolaro
- CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy.
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., University of Messina V. le F. Stagno D'Alcontres, 3198166 Messina, Italy.
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82
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Auguié B, Darby BL, Le Ru EC. Electromagnetic interactions of dye molecules surrounding a nanosphere. NANOSCALE 2019; 11:12177-12187. [PMID: 31198919 DOI: 10.1039/c9nr01304k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Enhanced interaction between light and molecules adsorbed on metallic nanoparticles is a cornerstone of plasmonics and surface-enhanced spectroscopies. Recent experimental access to the electronic absorption spectrum of dye molecules on silver colloids at low molecular coverage has revealed subtle changes in the spectral shape that may be attributed to a combination of factors, from a chemical modification of the molecule in contact with a metal surface to electromagnetic dye-dye and dye-metal interactions. Here we develop an original model to rigorously address the electromagnetic effects. The dye molecules are described as coupled anisotropic polarisable dipoles and their interaction with the core metal particle is described using a generalised Mie theory. The theory is readily amenable to numerical implementation and yields far-field optical cross-sections that can be compared to experimental results. We apply this model to specific adsorption geometries of practical interest to highlight the effect of molecular orientation on predicted spectral shifts and enhancement factors, as a function of surface coverage. These are compared to experimental results and reproduce the measured spectral changes as a function of concentration. These results have direct implications for the interpretation of surface selection rules and enhancement factors in surface-enhanced spectroscopies, and of orientation and coverage effects in molecular/plasmonic resonance coupling experiments.
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Affiliation(s)
- Baptiste Auguié
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Brendan L Darby
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
| | - Eric C Le Ru
- School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, New Zealand.
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83
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Urban MJ, Shen C, Kong XT, Zhu C, Govorov AO, Wang Q, Hentschel M, Liu N. Chiral Plasmonic Nanostructures Enabled by Bottom-Up Approaches. Annu Rev Phys Chem 2019; 70:275-299. [DOI: 10.1146/annurev-physchem-050317-021332] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We present a comprehensive review of recent developments in the field of chiral plasmonics. Significant advances have been made recently in understanding the working principles of chiral plasmonic structures. With advances in micro- and nanofabrication techniques, a variety of chiral plasmonic nanostructures have been experimentally realized; these tailored chiroptical properties vastly outperform those of their molecular counterparts. We focus on chiral plasmonic nanostructures created using bottom-up approaches, which not only allow for rational design and fabrication but most intriguingly in many cases also enable dynamic manipulation and tuning of chiroptical responses. We first discuss plasmon-induced chirality, resulting from the interaction of chiral molecules with plasmonic excitations. Subsequently, we discuss intrinsically chiral colloids, which give rise to optical chirality owing to their chiral shapes. Finally, we discuss plasmonic chirality, achieved by arranging achiral plasmonic particles into handed configurations on static or active templates. Chiral plasmonic nanostructures are very promising candidates for real-life applications owing to their significantly larger optical chirality than natural molecules. In addition, chiral plasmonic nanostructures offer engineerable and dynamic chiroptical responses, which are formidable to achieve in molecular systems. We thus anticipate that the field of chiral plasmonics will attract further widespread attention in applications ranging from enantioselective analysis to chiral sensing, structural determination, and in situ ultrasensitive detection of multiple disease biomarkers, as well as optical monitoring of transmembrane transport and intracellular metabolism.
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Affiliation(s)
| | - Chenqi Shen
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine Research, and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215213, China
| | - Xiang-Tian Kong
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - Chenggan Zhu
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine Research, and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215213, China
| | - Alexander O. Govorov
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Qiangbin Wang
- CAS Key Laboratory of Nano-Bio Interface, Division of Nanobiomedicine Research, and i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215213, China
- College of Materials Science and Opto-Electronic Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mario Hentschel
- 4th Physics Institute and Stuttgart Research Center of Photonic Engineering (SCoPE), University of Stuttgart, 70569 Stuttgart, Germany
| | - Na Liu
- Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
- Kirchhoff-Institute for Physics, University of Heidelberg, 69120 Heidelberg, Germany
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84
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Cecconello A, Simmel FC. Controlling Chirality across Length Scales using DNA. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1805419. [PMID: 30785662 DOI: 10.1002/smll.201805419] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 01/26/2019] [Indexed: 06/09/2023]
Abstract
Nano-objects with chiral properties attract growing interest due to their relevance for a wide variety of technological applications. For example, chiral nano-objects may be used in characterization platforms that involve chiral molecular recognition of proteins or in the fabrication of nanomechanical devices such as screw-gears or nanoswimmers. Spatial ordering of emitters of circularly polarized light might greatly benefit from the utilization of chiral shapes. Tools developed in DNA nanotechnology now allow precise tailoring of the chiral properties of molecules and materials at various length scales. Among others, they have already been applied to control the handedness of helical shapes (configurational chirality) or the chiral positioning of different-sized nanoparticles at the vertices of tetrahedra (compositional chirality). This work covers some of the key advances and recent developments in the field of chiral DNA nanoarchitectures and discusses their future perspectives and potential applications.
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Affiliation(s)
- Alessandro Cecconello
- Physics Department, TU München, Am Coulombwall 4a/II - 85748 Garching b., München, Germany
| | - Friedrich C Simmel
- Physics Department, TU München, Am Coulombwall 4a/II - 85748 Garching b., München, Germany
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85
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George J, Kar S, Anupriya ES, Somasundaran SM, Das AD, Sissa C, Painelli A, Thomas KG. Chiral Plasmons: Au Nanoparticle Assemblies on Thermoresponsive Organic Templates. ACS NANO 2019; 13:4392-4401. [PMID: 30916934 DOI: 10.1021/acsnano.8b09624] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Template-assisted strategies are widely used to fabricate nanostructured materials. By taking these strategies a step forward, herein we report the design of two chiral plasmonic nanostructures based on Au nanoparticle (NP) assemblies organized in clockwise and anticlockwise directions, having opposite response to circularly polarized light. The chiral plasmonic nanostructures are obtained by growing Au NPs on chiral templates based on d- and l-forms of alanine functionalized phenyleneethynylenes. Interestingly, Au NP assemblies show mirror symmetrical electronic circular dichroism (ECD) bands at their surface plasmon frequency originating through their asymmetric organization. Upon increasing the temperature, the chiral templates dissociate as evident from the disappearance of their ECD signal. The profound advantage of the thermoresponsive nature of the templates is employed to obtain free-standing chiral plasmonic nanostructures. The tilt angle high-resolution transmission electron microscopic measurements indicate that the NP assemblies, grown on a template based on the d-isomer, organize in clockwise direction ( P-form) and on l-isomer in anticlockwise direction ( M-form). The inherent chirality prevailing on the surface of the template drives the helical growth of the Au NPs in opposite directions. Experimental results are rationalized by a model which accounts for the large polarizability of Au NPs. The large polarizability leads to large oscillating dipole moments whose effects become prominent when interparticle distances are comparable to the particle size.
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Affiliation(s)
- Jino George
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura , Thiruvananthapuram 695 551 , India
- CSIR - National Institute for Interdisciplinary Science and Technology , Trivandrum , Kerala 695 019 , India
| | - Sabnam Kar
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura , Thiruvananthapuram 695 551 , India
| | - Edappalil Satheesan Anupriya
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura , Thiruvananthapuram 695 551 , India
| | - Sanoop Mambully Somasundaran
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura , Thiruvananthapuram 695 551 , India
| | - Anjali Devi Das
- CSIR - National Institute for Interdisciplinary Science and Technology , Trivandrum , Kerala 695 019 , India
| | - Cristina Sissa
- Department of Chemistry, Life Sciences, and Environmental Sustainability , University of Parma , 43124 Parma , Italy
| | - Anna Painelli
- Department of Chemistry, Life Sciences, and Environmental Sustainability , University of Parma , 43124 Parma , Italy
| | - K George Thomas
- School of Chemistry , Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura , Thiruvananthapuram 695 551 , India
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86
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Wilson JC, Gutsche P, Herrmann S, Burger S, McPeak KM. Correlation of circular differential optical absorption with geometric chirality in plasmonic meta-atoms. OPTICS EXPRESS 2019; 27:5097-5115. [PMID: 30876113 DOI: 10.1364/oe.27.005097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 12/26/2018] [Indexed: 06/09/2023]
Abstract
We report a strong correlation between the calculated broadband circular differential optical absorption (CDOA) and the geometric chirality of plasmonic meta-atoms with two-dimensional chirality. We investigate this correlation using three common gold meta-atom geometries: L-shapes, triangles, and nanorod dimers, over a broad range of geometric parameters. We show that this correlation holds for both contiguous plasmonic meta-atoms and non-contiguous structures which support plasmonic coupling effects. A potential application for this correlation is the rapid optimization of plasmonic nanostructure for maximum broadband CDOA.
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87
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Liu T, Besteiro LV, Liedl T, Correa-Duarte MA, Wang Z, Govorov AO. Chiral Plasmonic Nanocrystals for Generation of Hot Electrons: Toward Polarization-Sensitive Photochemistry. NANO LETTERS 2019; 19:1395-1407. [PMID: 30681343 DOI: 10.1021/acs.nanolett.8b05179] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The use of biomaterials, with techniques such as DNA-directed assembly or biodirected synthesis, can surpass top-down fabrication techniques in creating plasmonic superstructures in terms of spatial resolution, range of functionality, and fabrication speed. In particular, by enabling a very precise placement of nanoparticles in a bioassembled complex or through the controlled biodirected shaping of single nanoparticles, plasmonic nanocrystals can show remarkably strong circular dichroism (CD) signals. We show that chiral bioplasmonic assemblies and single nanocrystals can enable polarization-sensitive photochemistry based on the generation of energetic (hot) electrons. It is now established that hot plasmonic electrons can induce surface photochemistry or even reshape plasmonic nanocrystals. We show that merging chiral plasmonic nanocrystal systems and the hot-election generation effect offers unique possibilities in photochemistry, such as polarization-sensitive photochemistry promoting nonchiral molecular reactions, chiral photoinduced growth of a colloid at the atomic level, and chiral photochemical destruction of chiral nanocrystals. In contrast, for chiral molecular systems, the equivalent of the described effects is challenging to observe because molecular species typically exhibit very small CD signals. Moreover, we compare our findings with traditional chiral photochemistry at the molecular level, identifying new, different regimes for chiral photochemistry with possibilities that are unique for plasmonic colloidal systems. In this study, we bring together the concept of hot-electron generation and the field of chiral colloidal plasmonics. Using chiral plasmonic nanorod complexes as a model system, we demonstrate remarkably strong CD in both optical extinction and generation rates of hot electrons. Studying the regime of steady-state excitation, we discuss the influence of geometrical and material parameters on the chiral effects involved in the generation of hot electrons. Optical chirality and the chiral hot-electron response in the nanorod dimers result from complex interparticle interactions, which can appear in the weak coupling regime or in the form of Rabi splitting. Regarding practical applications, our study suggests interesting opportunities in polarization-sensitive photochemistry, in chiral recognition or separation, and in promoting chiral crystal growth at the nanoscale.
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Affiliation(s)
- Tianji Liu
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
- Department of Physics and Astronomy , Ohio University , Athens , Ohio 45701 , United States
| | - Lucas V Besteiro
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
- Centre Énergie Matériaux et Télécommunications , Institut National de la Recherche Scientifique , 1650 Boul. Lionel Boulet , Varennes , Quebec J3X 1S2 , Canada
| | - Tim Liedl
- Fakultät für Physik and Center for Nanoscience , Ludwig-Maximilians-Universtät München , Geschwister-Scholl-Platz 1 , 80539 Munich , Germany
| | - Miguel A Correa-Duarte
- Department of Physical Chemistry, Center for Biomedical Research (CINBIO), Southern Galicia Institute of Health Research (IISGS), and Biomedical Research, Networking Center for Mental Health (CIBERSAM) , Universidade de Vigo , 36310 Vigo , Spain
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
| | - Alexander O Govorov
- Institute of Fundamental and Frontier Sciences , University of Electronic Science and Technology of China , Chengdu 610054 , China
- Department of Physics and Astronomy , Ohio University , Athens , Ohio 45701 , United States
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88
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Kalachyova Y, Guselnikova O, Elashnikov R, Panov I, Žádný J, Církva V, Storch J, Sykora J, Zaruba K, Švorčík V, Lyutakov O. Helicene-SPP-Based Chiral Plasmonic Hybrid Structure: Toward Direct Enantiomers SERS Discrimination. ACS APPLIED MATERIALS & INTERFACES 2019; 11:1555-1562. [PMID: 30525385 DOI: 10.1021/acsami.8b15520] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Achieving chiral plasmon response based on the combination of achiral plasmonic nanostructures with highly chiral surrounding medium represents an attractive way for creation of hybrid optically active plasmonic materials. In this work, we present an attractive design and fabrication of chiral plasmon substrates based on a surface plasmon-polariton-supported structure coupled with extremely optically active helicene enantiomers. Such approach allows us to excite chiral plasmon waves and to design optically active surface-enhanced Raman spectroscopy substrates. Its further combination with standard Raman spectroscopy makes possible enantioselective detection/recognition of optical enantiomers with detection limits below those of standard spectral techniques. The chiral optical response of new plasmonic system was observed and controlled by the optical rotation of helicenes. Without necessity of previous chiral separation or implementation of sophisticated experimental equipment, we were able to estimate the concentration of enantiomers in their mixture by using left- or right-handed chiral plasmon substrates.
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Affiliation(s)
- Yevgeniya Kalachyova
- Research School of Chemistry and Applied Biomedical Sciences , Tomsk Polytechnic University , Lenina avn. 30 , 634 050 Tomsk , Russian Federation
| | | | | | - Illia Panov
- Group of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals , Czech Academy of Sciences , Rozvojová 135 , 165 02 Prague , Czech Republic
| | - Jaroslav Žádný
- Group of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals , Czech Academy of Sciences , Rozvojová 135 , 165 02 Prague , Czech Republic
| | - Vladimir Církva
- Group of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals , Czech Academy of Sciences , Rozvojová 135 , 165 02 Prague , Czech Republic
| | - Jan Storch
- Group of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals , Czech Academy of Sciences , Rozvojová 135 , 165 02 Prague , Czech Republic
| | - Jan Sykora
- Group of Advanced Materials and Organic Synthesis, Institute of Chemical Process Fundamentals , Czech Academy of Sciences , Rozvojová 135 , 165 02 Prague , Czech Republic
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89
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Zhang Q, Gu J, Zhang L, Lin J. Diverse chiral assemblies of nanoparticles directed by achiral block copolymers via nanochannel confinement. NANOSCALE 2019; 11:474-484. [PMID: 30566160 DOI: 10.1039/c8nr07036a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It is a challenging task to realize large-area manufacture of chiral geometries of nanoparticles in solid-state materials, which exhibit strongly chiroptical responses in the visible and near-infrared ranges. Herein, novel nanocomposites, made from mixtures of achiral block copolymers and nanoparticles in a geometrically confined environment, are conceptually proposed to construct the chiral assemblies of nanoparticles through a joint theoretical-calculation framework and experimental discussion. It is found that the nanochannel-confined block copolymers self-assemble into a family of intrinsically chiral architectures, which serve as structural scaffolds to direct the chiral arrangement of nanoparticles. Through calculations of chiral order parameters and simulations of discrete dipole approximation, it is further demonstrated that certain members of this family of nanoparticle assemblies exhibit intense chiroptical activity, which can be tailored by the nanochannel radius and the nanoparticle loading. These findings highlight the multiple levels of structural control over a class of chiral assemblies of nanoparticles and the functionalities of emerging materials via careful design and selection of nanocomposites.
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Affiliation(s)
- Qian Zhang
- Shanghai Key Laboratory of Advanced Polymeric Materials, State Key Laboratory of Bioreactor Engineering, Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China.
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90
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Wang R, Cui J, Wan X, Zhang J. Controlled chiral arrangement of silver nanoparticles in supramolecular gels modulated by the cooling rate. Chem Commun (Camb) 2019; 55:4949-4952. [DOI: 10.1039/c9cc01015g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Opposite helical arrangements of silver nanoparticles can be in situ achieved in organogels from a single gelator at different cooling rates.
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Affiliation(s)
- Rong Wang
- Beijing National Laboratory for Molecular Science
- Key Laboratory of Polymer Chemistry and Physics of Minister of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Jiaxi Cui
- INM-Leibniz Institute for New Materials
- Saarbrucken
- Germany
| | - Xinhua Wan
- Beijing National Laboratory for Molecular Science
- Key Laboratory of Polymer Chemistry and Physics of Minister of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
| | - Jie Zhang
- Beijing National Laboratory for Molecular Science
- Key Laboratory of Polymer Chemistry and Physics of Minister of Education
- Center for Soft Matter Science and Engineering
- College of Chemistry and Molecular Engineering
- Peking University
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91
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Basiri A, Chen X, Bai J, Amrollahi P, Carpenter J, Holman Z, Wang C, Yao Y. Nature-inspired chiral metasurfaces for circular polarization detection and full-Stokes polarimetric measurements. LIGHT, SCIENCE & APPLICATIONS 2019; 8:78. [PMID: 31645924 PMCID: PMC6804686 DOI: 10.1038/s41377-019-0184-4] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/01/2019] [Accepted: 07/24/2019] [Indexed: 05/22/2023]
Abstract
The manipulation and characterization of light polarization states are essential for many applications in quantum communication and computing, spectroscopy, bioinspired navigation, and imaging. Chiral metamaterials and metasurfaces facilitate ultracompact devices for circularly polarized light generation, manipulation, and detection. Herein, we report bioinspired chiral metasurfaces with both strong chiral optical effects and low insertion loss. We experimentally demonstrated submicron-thick circularly polarized light filters with peak extinction ratios up to 35 and maximum transmission efficiencies close to 80% at near-infrared wavelengths (the best operational wavelengths can be engineered in the range of 1.3-1.6 µm). We also monolithically integrated the microscale circular polarization filters with linear polarization filters to perform full-Stokes polarimetric measurements of light with arbitrary polarization states. With the advantages of easy on-chip integration, ultracompact footprints, scalability, and broad wavelength coverage, our designs hold great promise for facilitating chip-integrated polarimeters and polarimetric imaging systems for quantum-based optical computing and information processing, circular dichroism spectroscopy, biomedical diagnosis, and remote sensing applications.
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Affiliation(s)
- Ali Basiri
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
| | - Xiahui Chen
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
| | - Jing Bai
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
| | - Pouya Amrollahi
- Biodesign Centre for Molecular Design & Biomimetics, Arizona State University, Tempe, AZ 85281 USA
| | - Joe Carpenter
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
| | - Zachary Holman
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
| | - Chao Wang
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
- Biodesign Centre for Molecular Design & Biomimetics, Arizona State University, Tempe, AZ 85281 USA
| | - Yu Yao
- School of Electrical, Computer and Energy Engineering, Arizona State University, Tempe, AZ 85281 USA
- Centre for Photonic Innovation, Arizona State University, Tempe, AZ 85281 USA
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92
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Feng X, Bai Y, Jing Z, Qu Y, Wang T, Ullah H, Zhang Z. Enhanced circular dichroism of tilted zigzag-shaped nanohole arrays. APPLIED OPTICS 2019; 58:177-181. [PMID: 30645527 DOI: 10.1364/ao.58.000177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
Circular dichroism (CD) of nanostructures is in great demand for applications in biological molecules, photocurrent devices, and photocatalysis. Planar nanostructures can be prepared in a concise manner, and their CD effects have gained much research interest. In this study, tilted zigzag-shaped nanohole (TZSN) arrays are proposed, and the CD effect is studied by the finite element method. A strong resonance occurs in the gap by tuning the charge distributions between adjacent nanoholes. Meanwhile, the CD effect of TZSN arrays is strongly dependent on the structural parameters of TZSN. Results provide a novel method for tuning the CD effects of nanohole arrays on a film.
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93
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Bochenkov VE, Shabatina TI. Chiral Plasmonic Biosensors. BIOSENSORS 2018; 8:E120. [PMID: 30513775 PMCID: PMC6316110 DOI: 10.3390/bios8040120] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 11/25/2018] [Accepted: 11/29/2018] [Indexed: 12/17/2022]
Abstract
Biosensing requires fast, selective, and highly sensitive real-time detection of biomolecules using efficient simple-to-use techniques. Due to a unique capability to focus light at nanoscale, plasmonic nanostructures provide an excellent platform for label-free detection of molecular adsorption by sensing tiny changes in the local refractive index or by enhancing the light-induced processes in adjacent biomolecules. This review discusses the opportunities provided by surface plasmon resonance in probing the chirality of biomolecules as well as their conformations and orientations. Various types of chiral plasmonic nanostructures and the most recent developments in the field of chiral plasmonics related to biosensing are considered.
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Affiliation(s)
- Vladimir E Bochenkov
- Chemistry Department of Lomonosov, Moscow State University, 119991 Moskva, Russia.
| | - Tatyana I Shabatina
- Chemistry Department of Lomonosov, Moscow State University, 119991 Moskva, Russia.
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94
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Lermusiaux L, Funston AM. Plasmonic isomers via DNA-based self-assembly of gold nanoparticles. NANOSCALE 2018; 10:19557-19567. [PMID: 30324955 DOI: 10.1039/c8nr05509b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Developments in DNA nanotechnology offer control of the self-assembly of materials into discrete nanostructures. Within this paradigm, pre-assembled DNA origami with hundreds of DNA strands allows for precise and programmable spatial positioning of functionalised nanoparticles. We propose an alternative approach to construct multiple, structurally different, nanoparticle assemblies from just a few complementary nanoparticle-functionalised DNA strands. The approach exploits local minima in the potential energy landscape of hybridised nanoparticle-DNA structures by employing kinetic control of the assembly. Using a four-strand DNA template, we synthesise five different 3D gold nanoparticle (plasmonic) tetrameric isomers, akin to molecular structural isomers. The number of different structures formed using this approach for a set of DNA strands represents a combinatorial library, which we summarise in a hybridisation pathway tree and use to achieve deposition of tetrahedral assemblies onto substrates in high yield. The ability to program nanoparticle self-assembly pathways gives unprecedented access to unique plasmonic nanostructures.
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Affiliation(s)
- Laurent Lermusiaux
- ARC Centre of Excellence in Exciton Science and School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
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95
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Bao ZY, Dai J, Zhang Q, Ho KH, Li S, Chan CH, Zhang W, Lei DY. Geometric modulation of induced plasmonic circular dichroism in nanoparticle assemblies based on backaction and field enhancement. NANOSCALE 2018; 10:19684-19691. [PMID: 30328878 DOI: 10.1039/c8nr07300g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chiral cysteine-directed assemblies of Au@Ag core-shell nanocrystals (CSNCs) and Au/Ag nanorods with end-to-end (ETE) and side-by-side (SBS) configurations are fabricated and used to explore the definitive factors affecting the chiral response. The interaction between cysteine and metallic nanoparticles leads to intense and widely tunable plasmonic circular dichroism (PCD) ranging from a near-infrared (NIR) to ultraviolet (UV) regime. More importantly, it was observed that, in Ag nanorod and CSNC samples with varied aspect ratios, the ETE assembled patterns exhibit much larger PCD enhancement than SBS assemblies in an l/d-cysteine solvent environment. Very surprisingly, such a giant PCD response in these assemblies is completely different from that of the Au nanorod assembly case as reported earlier. Experimental and theoretical studies reveal that the interplay between the local field enhancement and backaction, triggered by the geometric configuration differentia of covered achiral CTAB molecules on Ag and Au surfaces, plays a crucial role in chiral response variances and leads to geometry-dependent optical activities. This work not only sheds light on understanding the relationship between the configuration of plasmonic nanostructure assemblies and geometry-manipulated circular dichroism, but also paves the way for predictive design of plasmonic biosensors or other nanodevices with controllable optical activities from the UV to the NIR light range.
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Affiliation(s)
- Zhi Yong Bao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong.
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96
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Kang H, Buchman JT, Rodriguez RS, Ring HL, He J, Bantz KC, Haynes CL. Stabilization of Silver and Gold Nanoparticles: Preservation and Improvement of Plasmonic Functionalities. Chem Rev 2018; 119:664-699. [DOI: 10.1021/acs.chemrev.8b00341] [Citation(s) in RCA: 258] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hyunho Kang
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Joseph T. Buchman
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Rebeca S. Rodriguez
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Hattie L. Ring
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Jiayi He
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Kyle C. Bantz
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
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97
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Pescitelli G, Lüdeke S, Chamayou AC, Marolt M, Justus V, Górecki M, Arrico L, Di Bari L, Islam MA, Gruber I, Enamullah M, Janiak C. Broad-Range Spectral Analysis for Chiral Metal Coordination Compounds: (Chiro)optical Superspectrum of Cobalt(II) Complexes. Inorg Chem 2018; 57:13397-13408. [PMID: 30339376 DOI: 10.1021/acs.inorgchem.8b01932] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Chiroptical broad-range spectral analysis extending from UV to mid-IR was employed to study a family of Co(II) N-(1-(aryl)ethyl)salicylaldiminato Schiff base complexes with pseudotetrahedral geometry associated with chirality-at-metal of the Δ/Λ type. While common chiral organic compounds have well-separated absorption and circular dichroism spectra (CD) in the UV/vis and IR regions, chiral Co(II) complexes feature an almost unique continuum of absorption and CD bands, which cover in sequence the UV, visible, near-IR (NIR), and IR regions of the electromagnetic spectrum. They can be collected in a single (chiro)optical superspectrum ranging from the UV (230 nm, 5.4 eV) to the mid-IR (1000 cm-1, 0.12 eV), which offers a fingerprint of the structure and stereochemistry of the metal complexes. Each region of the superspectrum contributes to one piece of information: the NIR-CD region, in combination with TDDFT calculations, allows a reliable assignment of the metal-centered chirality; the UV-CD region facilitates the analysis of the Δ/Λ diastereomeric equilibrium in solution; and the IR-VCD region contains a combination of low-lying metal-centered electronic states (LLES) and ligand-centered vibrations and displays characteristically enhanced and monosignate VCD bands. Circular dichroism in the NIR and IR regions is crucial to reveal the presence of d-d transitions of the Co(II) core which, due to the electric-dipole forbidden character, would be otherwise overlooked in the corresponding absorption spectra.
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Affiliation(s)
- Gennaro Pescitelli
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy
| | - Steffen Lüdeke
- Institute of Pharmaceutical Sciences , University of Freiburg , D-79104 Freiburg , Germany
| | | | - Marija Marolt
- Institute of Pharmaceutical Sciences , University of Freiburg , D-79104 Freiburg , Germany
| | - Viktor Justus
- Institute of Pharmaceutical Sciences , University of Freiburg , D-79104 Freiburg , Germany
| | - Marcin Górecki
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy.,Institute of Organic Chemistry , Polish Academy of Sciences , 01-224 Warsaw , Poland
| | - Lorenzo Arrico
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy
| | - Lorenzo Di Bari
- Department of Chemistry and Industrial Chemistry , University of Pisa , 56126 Pisa , Italy
| | | | - Irina Gruber
- Institute of Inorganic Chemistry and Structural Chemistry , University of Düsseldorf , D-40225 Düsseldorf , Germany
| | - Mohammed Enamullah
- Department of Chemistry , Jahangirnagar University , Dhaka - 1342 , Bangladesh
| | - Christoph Janiak
- Institute of Inorganic Chemistry and Structural Chemistry , University of Düsseldorf , D-40225 Düsseldorf , Germany
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98
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Wu Z, Liu Y, Hill EH, Zheng Y. Chiral metamaterials via Moiré stacking. NANOSCALE 2018; 10:18096-18112. [PMID: 30004551 DOI: 10.1039/c8nr04352c] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Chiral metamaterials have attracted strong interest due to their versatile capabilities in spin-dependent light manipulation. Benefiting from advancements in nanofabrication and mechanistic understanding of chiroptical effects, chiral metamaterials have shown potential in a variety of applications including circular polarizers, chiral sensors, and chiroptical detectors. Recently, chiral metamaterials made by moiré stacking, superimposing two or more periodic patterns with different lattice constants or relative spatial displacement, have shown promise for chiroptical applications. The moiré chiral metamaterials (MCMs) take advantage of lattice-dependent chirality, giving cost-effective fabrication, flexible tunability, and reconfigurability superior to conventional chiral metamaterials. This feature article focuses on recent progress of MCMs. We discuss optical mechanisms, structural design, fabrication, and applications of the MCMs. We conclude with our perspectives on the future opportunities for the MCMs.
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Affiliation(s)
- Zilong Wu
- Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA.
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99
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Funck T, Nicoli F, Kuzyk A, Liedl T. Sensing Picomolar Concentrations of RNA Using Switchable Plasmonic Chirality. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807029] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Timon Funck
- Department für Physik; Ludwig-Maximilians-Universität; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Francesca Nicoli
- Department für Physik; Ludwig-Maximilians-Universität; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Anton Kuzyk
- Department of Neuroscience and Biomedical Engineering; Aalto University School of Science; P.O. Box 12200 00076 Aalto Finland
| | - Tim Liedl
- Department für Physik; Ludwig-Maximilians-Universität; Geschwister-Scholl-Platz 1 80539 München Germany
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100
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Funck T, Nicoli F, Kuzyk A, Liedl T. Sensing Picomolar Concentrations of RNA Using Switchable Plasmonic Chirality. Angew Chem Int Ed Engl 2018; 57:13495-13498. [DOI: 10.1002/anie.201807029] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Timon Funck
- Department für Physik; Ludwig-Maximilians-Universität; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Francesca Nicoli
- Department für Physik; Ludwig-Maximilians-Universität; Geschwister-Scholl-Platz 1 80539 München Germany
| | - Anton Kuzyk
- Department of Neuroscience and Biomedical Engineering; Aalto University School of Science; P.O. Box 12200 00076 Aalto Finland
| | - Tim Liedl
- Department für Physik; Ludwig-Maximilians-Universität; Geschwister-Scholl-Platz 1 80539 München Germany
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