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Wan J, Sun L, Sun X, Liu C, Yang G, Zhang B, Tao Y, Yang Y, Zhang Q. Cu 2+-Dominated Chirality Transfer from Chiral Molecules to Concave Chiral Au Nanoparticles. J Am Chem Soc 2024; 146:10640-10654. [PMID: 38568727 DOI: 10.1021/jacs.4c00322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Foreign ions as additives are of great significance for realizing excellent control over the morphology of noble metal nanostructures in the state-of-the-art seed-mediated growth method; however, they remain largely unexplored in chiral synthesis. Here, we report on a Cu2+-dominated chiral growth strategy that can direct the growth of concave chiral Au nanoparticles with C3-dominant chiral centers. The introduction of trace amounts of Cu2+ ions in the seed-mediated chiral growth process is found to dominate the chirality transfer from chiral molecules to chiral nanoparticles, leading to the formation of chiral nanoparticles with a concave VC geometry. Both experimental and theoretical results further demonstrate the correlation between the nanoparticle structure and optical chirality for the concave chiral nanoparticle. The Cu2+ ion is found to dominate the chiral growth by selectively activating the deposition of Au atoms along the [110] and [111] directions, facilitating the formation of the concave VC. We further demonstrate that the Cu2+-dominated chiral growth strategy can be employed to generate a variety of concave chiral nanoparticles with enriched geometric chirality and desired chiroptical properties. Concave chiral nanoparticles also exhibit appealing catalytic activity and selectivity toward electrocatalytic oxidation of enantiomers in comparison to helicoidal nanoparticles. The ability to tune the geometric chirality in a controlled manner by simply manipulating the Cu2+ ions as additives opens up a promising strategy for creating chiral nanomaterials with increasing architectural diversity for chirality-dependent optical and catalytic applications.
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Affiliation(s)
- Jinling Wan
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lichao Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Xuehao Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chuang Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Guizeng Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Binbin Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yunlong Tao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yahui Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Qingfeng Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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2
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Sun X, Sun L, Lin L, Guo S, Yang Y, Zhang B, Liu C, Tao Y, Zhang Q. Tuning the Geometry and Optical Chirality of Pentatwinned Au Nanoparticles with 5-Fold Rotational Symmetry. ACS NANO 2024; 18:9543-9556. [PMID: 38518176 DOI: 10.1021/acsnano.3c12637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/24/2024]
Abstract
Chirality transfer from chiral molecules to chiral nanomaterials represents an important topic for exploring the origin of chirality in many natural and artificial systems. Moreover, developing a promising class of chiral nanomaterials holds great significance for various applications, including sensing, photonics, catalysis, and biomedicine. Here we demonstrate the geometric control and tunable optical chirality of chiral pentatwinned Au nanoparticles with 5-fold rotational symmetry using the seed-mediated chiral growth method. A distinctive growth pathway and optical chirality are observed using pentatwinned decahedra as seeds, in comparison with the single-crystal Au seeds. By employing different peptides as chiral inducers, pentatwinned Au nanoparticles with two distinct geometric chirality (pentagonal nanostars and pentagonal prisms) are obtained. The intriguing formation and evolution of geometric chirality with the twinned structure are analyzed from a crystallographic perspective upon maneuvering the interplay of chiral molecules, surfactants, and reducing agents. Moreover, the interesting effects of the molecular structure of peptides on tuning the geometric chirality of pentatwinned Au nanoparticles are also explored. Finally, we theoretically and experimentally investigate the far-field and near-field optical properties of chiral pentatwinned Au nanoparticles through numerical simulations and single-particle chiroptical measurements. The ability to tune the geometric chirality in a controlled manner represents an important step toward the development of chiral nanomaterials with increasing architectural complexity for chiroptical applications.
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Affiliation(s)
- Xuehao Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lichao Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Lifei Lin
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Shaoyuan Guo
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yiming Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Binbin Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Chuang Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Yunlong Tao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Qingfeng Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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3
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Zhang C, Hu H, Ma C, Li Y, Wang X, Li D, Movsesyan A, Wang Z, Govorov A, Gan Q, Ding T. Quantum plasmonics pushes chiral sensing limit to single molecules: a paradigm for chiral biodetections. Nat Commun 2024; 15:2. [PMID: 38169462 PMCID: PMC10762144 DOI: 10.1038/s41467-023-42719-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 10/19/2023] [Indexed: 01/05/2024] Open
Abstract
Chiral sensing of single molecules is vital for the understanding of chirality and their applications in biomedicine. However, current technologies face severe limitations in achieving single-molecule sensitivity. Here we overcome these limitations by designing a tunable chiral supramolecular plasmonic system made of helical oligoamide sequences (OS) and nanoparticle-on-mirror (NPoM) resonator, which works across the classical and quantum regimes. Our design enhances the chiral sensitivity in the quantum tunnelling regime despite of the reduced local E-field, which is due to the strong Coulomb interactions between the chiral OSs and the achiral NPoMs and the additional enhancement from tunnelling electrons. A minimum of four molecules per single-Au particle can be detected, which allows for the detection of an enantiomeric excess within a monolayer, manifesting great potential for the chiral sensing of single molecules.
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Affiliation(s)
- Chi Zhang
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, 430072, Wuhan, China
| | - Huatian Hu
- Hubei Key Laboratory of Optical Information and Pattern Recognition, Wuhan Institute of Technology, 430205, Wuhan, China
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Via Barsanti 14, Arnesano, LE, 73010, Italy
| | - Chunmiao Ma
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Yawen Li
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, 430072, Wuhan, China
| | - Xujie Wang
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, 430072, Wuhan, China
| | - Dongyao Li
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Artur Movsesyan
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
- Department of Physics and Astronomy, Ohio University, Athens, OH, 45701, USA
| | - Zhiming Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China
| | - Alexander Govorov
- Department of Physics and Astronomy, Ohio University, Athens, OH, 45701, USA
| | - Quan Gan
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China.
| | - Tao Ding
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, 430072, Wuhan, China.
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4
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Branzi L, Lavet O, Gun'ko YK. Ligand induced chirality in In 2S 3 nanoparticles. NANOSCALE 2023; 15:18753-18761. [PMID: 37953729 DOI: 10.1039/d3nr04320g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Chiral inorganic nanostructures have attracted a lot of attention over the last few years. Here we report the first observation of chirality in indium sulfide nanoparticles, which have been produced by a co-precipitation reaction in the presence of cysteine as a chiral agent. The process resulted in the production of spherical nanoparticles with an average diameter of around 3.6 nm. Circular dichroism spectroscopy of the nanoparticles showed an intense chiroptical signal corresponding to the indium sulfide excitonic transition, confirming the successful transfer of chirality to the In2S3 inorganic matrix. Nuclear magnetic resonance analysis of a colloidal solution of the nanoparticles demonstrated critical evidence of chemisorption of the chiral ligand on the surface of the nanoparticles and revealed a characteristic fast chemical exchange between the ligand chemisorbed on the surface of the nanoparticles and the free ligand in solution. Finally, the effect of the chiral ligand's structure on the transfer of chirality was investigated, with consideration of other amino acid ligands, and the critical role of the thiolate group in the optimisation of the chiral transfer was observed. This research is expected to stimulate further development and applications of new chiral semiconductor nanomaterials.
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Affiliation(s)
- Lorenzo Branzi
- School of Chemistry, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2, Ireland.
| | - Oriane Lavet
- Chemistry Department, University of Clermont Auvergne, Antenne du Puy en Velay, 43009 Le Puy en Velay Cedex, France
| | - Yurii K Gun'ko
- School of Chemistry, CRANN and AMBER Research Centres, Trinity College Dublin, College Green, Dublin 2, Ireland.
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5
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Tadgell B, Liz-Marzán LM. Probing Interactions between Chiral Plasmonic Nanoparticles and Biomolecules. Chemistry 2023; 29:e202301691. [PMID: 37581332 DOI: 10.1002/chem.202301691] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/15/2023] [Accepted: 08/15/2023] [Indexed: 08/16/2023]
Abstract
Chiral plasmonic nanoparticles (and their assemblies) interact with biomolecules in a variety of different ways, resulting in distinct optical signatures when probed by circular dichroism spectroscopy. These systems show promise for biosensing applications and offer several advantages over achiral plasmonic systems. Arguably the most notable advantage is that chiral nanoparticles can differentiate between molecular enantiomers and can, therefore, act as sensors for enantiomeric purity. Furthermore, chiral nanoparticles can couple more effectively to chiral biomolecules in biological systems if they have a matching handedness, improving their effectiveness as biomedical agents. In this article, we review the different types of interactions that occur between chiral plasmonic nanoparticle systems and biomolecules, and discuss how circular dichroism spectroscopy can probe these interactions and inform how to optimize systems for biosensing and biomedical applications.
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Affiliation(s)
- Ben Tadgell
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014, Donostia-San Sebastián, Spain
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014, Donostia-San Sebastián, Spain
- Networking Biomedical Research Center, Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Paseo de Miramón 194, 20014, Donostia-San Sebastián, Spain
- Ikerbasque, 48009, Bilbao, Spain
- Cinbio, Universidade de Vigo, Campus Universitario, 36310, Vigo, Spain
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6
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Sun L, Tao Y, Yang G, Liu C, Sun X, Zhang Q. Geometric Control and Optical Properties of Intrinsically Chiral Plasmonic Nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2306297. [PMID: 37572380 DOI: 10.1002/adma.202306297] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/03/2023] [Indexed: 08/14/2023]
Abstract
Intrinsically chiral plasmonic nanomaterials exhibit intriguing geometry-dependent chiroptical properties, which is due to the combination of plasmonic features with geometric chirality. Thus, chiral plasmonic nanomaterials have become promising candidates for applications in biosensing, asymmetric catalysis, biomedicine, photonics, etc. Recent advances in geometric control and optical tuning of intrinsically chiral plasmonic nanomaterials have further opened up a unique opportunity for their widespread applications in many emerging technological areas. Here, the recent developments in the geometric control of chiral plasmonic nanomaterials are reviewed with special attention given to the quantitative understanding of the chiroptical structure-property relationship. Several important optical spectroscopic tools for characterizing the optical chirality of plasmonic nanomaterials at both ensemble and single-particle levels are also discussed. Three emerging applications of chiral plasmonic nanomaterials, including enantioselective sensing, enantioselective catalysis, and biomedicine, are further highlighted. It is envisioned that these advanced studies in chiral plasmonic nanomaterials will pave the way toward the rational design of chiral nanomaterials with desired optical properties for diverse emerging technological applications.
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Affiliation(s)
- Lichao Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Yunlong Tao
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Guizeng Yang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Chuang Liu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Xuehao Sun
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
| | - Qingfeng Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, 430072, China
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7
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Han JH, Kim D, Kim J, Kim G, Fischer P, Jeong HH. Plasmonic Nanostructure Engineering with Shadow Growth. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2107917. [PMID: 35332960 DOI: 10.1002/adma.202107917] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 02/23/2022] [Indexed: 06/14/2023]
Abstract
Physical shadow growth is a vacuum deposition technique that permits a wide variety of 3D-shaped nanoparticles and structures to be fabricated from a large library of materials. Recent advances in the control of the shadow effect at the nanoscale expand the scope of nanomaterials from spherical nanoparticles to complex 3D shaped hybrid nanoparticles and structures. In particular, plasmonically active nanomaterials can be engineered in their shape and material composition so that they exhibit unique physical and chemical properties. Here, the recent progress in the development of shadow growth techniques to realize hybrid plasmonic nanomaterials is discussed. The review describes how fabrication permits the material response to be engineered and highlights novel functions. Potential fields of application with a focus on photonic devices, biomedical, and chiral spectroscopic applications are discussed.
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Affiliation(s)
- Jang-Hwan Han
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Doeun Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Juhwan Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Gyurin Kim
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
| | - Peer Fischer
- Max Planck Institute for Intelligent Systems, Heisenbergstr. 3, 70569, Stuttgart, Germany
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Hyeon-Ho Jeong
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea
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8
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Lin X, Zhou Y, Pan X, Zhang Q, Hu N, Li H, Wang L, Xue Q, Zhang W, Ni W. Trace detection of chiral J-aggregated molecules adsorbed on single Au nanorods. NANOSCALE 2023. [PMID: 37314106 DOI: 10.1039/d3nr01147j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Trace detection of chiral molecules, which is of great significance in chemical, biological, medical and pharmaceutical sciences, requires microscopic techniques at the single-particle or single-molecule level. Although ensemble experiments show that the circular dichroism of chiral molecules can be amplified by plasmonic nanocrystals, trace detection of small chiral molecules remains challenging due to weak signals that are far below the detection limit. Herein, we demonstrate trace detection of chiral J-aggregated molecules adsorbed on individual Au nanorods (NRs) using single-particle circular differential scattering (CDS) spectroscopy. Through measuring the single-particle CDS spectra, we identified dip-peak bisignatures and further determined the chirality by matching them with calculations modelled with chiral media. We therefore find that plasmonic nanocrystals can dramatically amplify the circular dichroism of strongly coupled molecules to a detectable level so that the detection limit is as low as 3.9 × 103 molecules on an individual plasmonic nanoparticle, whereas 2.5 × 1012 molecules free in solution are barely detectable using a commercial circular dichroism instrument, suggesting a significant amplification factor of 108. Our method provides a promising strategy with a high amplification factor, shedding light on the trace detection of chiral molecules using optical microscopic methods.
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Affiliation(s)
- Xingyue Lin
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Yuhan Zhou
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Xinyang Pan
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Qin Zhang
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Ningneng Hu
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Hao Li
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Le Wang
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Qi Xue
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Weihai Ni
- Jiangsu Key Laboratory of Thin Films, School of Physical Science and Technology, Soochow University, Suzhou, Jiangsu, 215006, China.
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9
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Somasundaran SM, Kompella SVK, Mohan T M N, Das S, Abdul Vahid A, Vijayan V, Balasubramanian S, Thomas KG. Structurally Induced Chirality of an Achiral Chromophore on Self-Assembled Nanofibers: A Twist Makes It Chiral. ACS NANO 2023. [PMID: 37220308 DOI: 10.1021/acsnano.3c03892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The surface domains of self-assembled amphiphiles are well-organized and can perform many physical, chemical, and biological functions. Here, we present the significance of chiral surface domains of these self-assemblies in transferring chirality to achiral chromophores. These aspects are probed using l- and d-isomers of alkyl alanine amphiphiles which self-assemble in water as nanofibers, possessing a negative surface charge. When bound on these nanofibers, positively charged cyanine dyes (CY524 and CY600), each having two quinoline rings bridged by conjugated double bonds, show contrasting chiroptical features. Interestingly, CY600 displays a bisignated circular dichroic (CD) signal with mirror-image symmetry, while CY524 is CD silent. Molecular dynamics simulations reveal that the model cylindrical micelles (CM) derived from the two isomers exhibit surface chirality and the chromophores are buried as monomers in mirror-imaged pockets on their surfaces. The monomeric nature of template-bound chromophores and their binding reversibility are established by concentration- and temperature-dependent spectroscopies and calorimetry. On the CM, CY524 displays two equally populated conformers with opposite sense, whereas CY600 is present as two pairs of twisted conformers in each of which one is in excess, due to differences in weak dye-amphiphile hydrogen bonding interactions. Infrared and NMR spectroscopies support these findings. Reduction of electronic conjugation caused by the twist establishes the two quinoline rings as independent entities. On-resonance coupling between the transition dipoles of these units generates bisignated CD signals with mirror-image symmetry. The results presented herein provide insight on the little-known structurally induced chirality of achiral chromophores through transfer of chiral surface information.
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Affiliation(s)
- Sanoop Mambully Somasundaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Srinath V K Kompella
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Nila Mohan T M
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Sudip Das
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - Arshad Abdul Vahid
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Vinesh Vijayan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), Jakkur, Bangalore 560064, India
| | - K George Thomas
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER TVM), Vithura, Thiruvananthapuram 695551, India
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10
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McCarthy L, Verma O, Naidu GN, Bursi L, Alabastri A, Nordlander P, Link S. Chiral Plasmonic Pinwheels Exhibit Orientation-Independent Linear Differential Scattering under Asymmetric Illumination. CHEMICAL & BIOMEDICAL IMAGING 2023; 1:30-39. [PMID: 37122830 PMCID: PMC10131493 DOI: 10.1021/cbmi.2c00005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 02/09/2023] [Accepted: 02/14/2023] [Indexed: 05/02/2023]
Abstract
Plasmonic nanoantennas have considerably stronger polarization-dependent optical properties than their molecular counterparts, inspiring photonic platforms for enhancing molecular dichroism and providing fundamental insight into light-matter interactions. One such insight is that even achiral nanoparticles can yield strong optical activity when they are asymmetrically illuminated from a single oblique angle instead of evenly illuminated. This effect, called extrinsic chirality, results from the overall chirality of the experimental geometry and strongly depends on the orientation of the incident light. Although extrinsic chirality has been well-characterized, an analogous effect involving linear polarization sensitivity has not yet been discussed. In this study, we investigate the differential scattering of rotationally symmetric chiral plasmonic pinwheels when asymmetrically irradiated with linearly polarized light. Despite their high rotational symmetry, we observe substantial linear differential scattering that is maintained over all pinwheel orientations. We demonstrate that this orientation-independent linear differential scattering arises from the broken mirror and rotational symmetries of our overall experimental geometry. Our results underscore the necessity of considering both the rotational symmetry of the nanoantenna and the experimental setup, including illumination direction and angle, when performing plasmon-enhanced chiroptical characterizations. Our results demonstrate spectroscopic signatures of an effect analogous to extrinsic chirality for linear polarizations.
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Affiliation(s)
- Lauren
A. McCarthy
- Department
of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Ojasvi Verma
- Department
of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Gopal Narmada Naidu
- Department
of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Luca Bursi
- Department
of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Alessandro Alabastri
- Department
of Electrical and Computer Engineering, Rice University, 6100
Main Street, Houston, Texas 77005, United States
| | - Peter Nordlander
- Department
of Physics and Astronomy, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department
of Electrical and Computer Engineering, Rice University, 6100
Main Street, Houston, Texas 77005, United States
| | - Stephan Link
- Department
of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
- Department
of Electrical and Computer Engineering, Rice University, 6100
Main Street, Houston, Texas 77005, United States
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11
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Pal SK, Bardhan D, Sen D, Chatterjee H, Ghosh SK. Angle-resolved plasmonic photocapacitance of gold nanorod dimers. NANOSCALE ADVANCES 2023; 5:1943-1955. [PMID: 36998648 PMCID: PMC10044666 DOI: 10.1039/d3na00061c] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 02/17/2023] [Indexed: 06/19/2023]
Abstract
The assembly of nanostructures with plausible statistical orientations has provided the opportunity to correlate physical observables to develop a diverse range of niche applications. The dimeric configurations of gold nanorods have been chosen as atypical model systems to correlate optoelectronic with mechanical properties at a number of combinations of angular orientations. Metals are considered as conductors in electronics and reflectors in optics - therefore, metallic particles at the nanoscale exhibit unique optoelectronic characteristics that enable the design of materials to meet the demand of the modern world. Gold nanorods have often been adopted as prototypical anisotropic nanostructures owing to their excellent shape-selective plasmonic tunability in the vis-NIR region. When a pair of metallic nanostructures is sufficiently close to exhibit electromagnetic interaction, the evolution of collective plasmon modes, substantial enhancement of the near-field and strong squeezing of the electromagnetic energy at the interparticle spatial region of the dimeric nanostructures occur. The localised surface plasmon resonance energies of the nanostructured dimers strongly depend on the geometry as well as the relative configurations of the neighbouring particle pairs. Recent advances in the 'tips and tricks' guide have even made it possible to assemble anisotropic nanostructures in a colloidal dispersion. The optoelectronic characteristics of gold nanorod homodimers at different mutual orientations with statistical variation of the angle between 0 and 90° at particular interparticle distances have been elucidated from both theoretical and experimental perspectives. It has been observed that the optoelectronic properties are governed by mechanical aspects of the nanorods at different angular orientations of the dimers. Therefore, we have approached the design of an optoelectronic landscape through the correlation of the plasmonics and photocapacitance through the optical torque of gold nanorod dimers.
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Affiliation(s)
- Sudip Kumar Pal
- Department of Chemistry, Assam University Silchar-788011 India
| | - Dorothy Bardhan
- Department of Chemistry, Assam University Silchar-788011 India
| | - Debarun Sen
- Department of Chemistry, Assam University Silchar-788011 India
| | | | - Sujit Kumar Ghosh
- Physical Chemistry Section, Department of Chemistry, Jadavpur University Kolkata-700032 India +91-33-24572770
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12
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Maniappan S, Reddy KL, Kumar J. Transmitting biomolecular chirality into carbon nanodots: a facile approach to acquire chiral light emission at the nanoscale. Chem Sci 2023; 14:491-498. [PMID: 36741532 PMCID: PMC9847681 DOI: 10.1039/d2sc05794h] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/26/2022] [Indexed: 11/29/2022] Open
Abstract
Since the observation of chirality at the nanoscale, research focused towards the design and synthesis of optically active nanomaterials has been at a brisk pace. In this regard, carbon based zero dimensional nanomaterials have attracted vast attention due to their rich optical properties, abundance of raw materials, minimal environmental hazardousness, good solubility, and ease of surface modification. However, efforts focused towards the synthesis of chiral carbon nanodots exhibiting optical activity both in their ground and excited states are rather scarce. Herein, we report a facile synthetic approach for the preparation of three sets of intrinsically chiral carbon nanodots that exhibit intense circularly polarized luminescence. Synthesis under optimized conditions using l- and d-isomers of the chiral precursors led to the formation of carbon nanodots that displayed mirror image circular dichroism and circularly polarized luminescence signals revealing their ground and excited state chirality. The experimental results are supportive of the reported core-shell model comprising an achiral carbon core that is enclosed within an amorphous shell contributing to the chiral luminescence. The luminescence anisotropy and wavelength could be tuned by varying the experimental conditions such as temperature and pH. The chiral emissive properties of the nanoparticles could be demonstrated in free-standing polymeric films revealing their potential to be used as chiral light emitting agents in optical devices, data storage and security tags. Being the first observation of intrinsic circularly polarized luminescence from a range of carbon nanodots, both in the solution and solid state, we envisage that the work will open new avenues for the investigation of excited stated chirality at the nanoscale.
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Affiliation(s)
- Sonia Maniappan
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) TirupatiTirupati – 517507India
| | - Kumbam Lingeshwar Reddy
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) TirupatiTirupati – 517507India
| | - Jatish Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) TirupatiTirupati – 517507India
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13
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Wang S, Liu X, Mourdikoudis S, Chen J, Fu W, Sofer Z, Zhang Y, Zhang S, Zheng G. Chiral Au Nanorods: Synthesis, Chirality Origin, and Applications. ACS NANO 2022; 16:19789-19809. [PMID: 36454684 DOI: 10.1021/acsnano.2c08145] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Chiral Au nanorods (c-Au NRs) with diverse architectures constitute an interesting nanospecies in the field of chiral nanophotonics. The numerous possible plasmonic behaviors of Au NRs can be coupled with chirality to initiate, tune, and amplify their chiroptical response. Interdisciplinary technologies have boosted the development of fabrication and applications of c-Au NRs. Herein, we have focused on the role of chirality in c-Au NRs which helps to manipulate the light-matter interaction in nontraditional ways. A broad overview on the chirality origin, chirality transfer, chiroptical activities, artificially synthetic methodologies, and circularly polarized applications of c-Au NRs will be summarized and discussed. A deeper understanding of light-matter interaction in c-Au NRs will help to manipulate the chirality at the nanoscale, reveal the natural evolution process taking place, and set up a series of circularly polarized applications.
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Affiliation(s)
- Shenli Wang
- School of Food Science and Engineering, Henan University of Technology, Lianhua Road 100, Zhengzhou, 450001, P. R. China
| | - Xing Liu
- School of Physics and Microelectronics, Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Stefanos Mourdikoudis
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628, Prague 6, Czech Republic
| | - Jie Chen
- School of Food Science and Engineering, Henan University of Technology, Lianhua Road 100, Zhengzhou, 450001, P. R. China
| | - Weiwei Fu
- School of Physics and Microelectronics, Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628, Prague 6, Czech Republic
| | - Yuan Zhang
- School of Physics and Microelectronics, Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Shunping Zhang
- School of Physics and Technology and Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, Wuhan University, Wuhan430072, P. R. China
| | - Guangchao Zheng
- School of Physics and Microelectronics, Key Laboratory of Material Physics, Ministry of Education, Zhengzhou University, Zhengzhou, 450001, P. R. China
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14
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Adhikari S, Orrit M. Optically Probing the Chirality of Single Plasmonic Nanostructures and of Single Molecules: Potential and Obstacles. ACS PHOTONICS 2022; 9:3486-3497. [PMID: 36411819 PMCID: PMC9673138 DOI: 10.1021/acsphotonics.2c01205] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/07/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Circular dichroism (CD) is a standard method for the analysis of biomolecular conformation. It is very reliable when applied to molecules, but requires relatively large amounts of solution. Plasmonics offer the perspective of enhancement of CD signals, which would extend CD spectrometry to smaller amounts of molecules and to weaker chiral signals. However, plasmonic enhancement comes at the cost of additional complications: averaging over all orientations is no longer possible or reliable, linear dichroism leaks into CD signals because of experimental imperfections, scattering and its interference with the incident beam must be taken into account, and the interaction between chiral molecules and possibly chiral plasmonic structures considerably complicates the interpretation of measured signals. This Perspective aims to explore the motivations and problems of plasmonic chirality and to re-evaluate present and future solutions.
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Affiliation(s)
- Subhasis Adhikari
- Huygens-Kamerlingh Onnes Laboratory, Leiden University, Niels Bohrweg 2, 2333 CALeiden, Netherlands
| | - Michel Orrit
- Huygens-Kamerlingh Onnes Laboratory, Leiden University, Niels Bohrweg 2, 2333 CALeiden, Netherlands
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15
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Leite TR, Zschiedrich L, Kizilkaya O, McPeak KM. Resonant Plasmonic-Biomolecular Chiral Interactions in the Far-Ultraviolet: Enantiomeric Discrimination of sub-10 nm Amino Acid Films. NANO LETTERS 2022; 22:7343-7350. [PMID: 36084234 DOI: 10.1021/acs.nanolett.2c01724] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Resonant plasmonic-molecular chiral interactions are a promising route to enhanced biosensing. However, biomolecular optical activity primarily exists in the far-ultraviolet regime, posing significant challenges for spectral overlap with current nano-optical platforms. We demonstrate experimentally and computationally the enhanced chiral sensing of a resonant plasmonic-biomolecular system operating in the far-UV. We develop a full-wave model of biomolecular films on Al gammadion arrays using experimentally derived chirality parameters. Our calculations show that detectable enhancements in the chiroptical signals from small amounts of biomolecules are possible only when tight spectral overlap exists between the plasmonic and biomolecular chiral responses. We support this conclusion experimentally by using Al gammadion arrays to enantiomerically discriminate ultrathin (<10 nm thick) films of tyrosine. Notably, the chiroptical signals of the bare films were within instrumental noise. Our results demonstrate the importance of using far-UV active metasurfaces for enhancing natural optical activity.
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Affiliation(s)
- Tiago Ramos Leite
- Gordon and Mary Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Lin Zschiedrich
- JCMwave GmbH, 14050 Berlin, Germany
- Zuse Institute Berlin, 14195 Berlin, Germany
| | - Orhan Kizilkaya
- Louisiana State University Center for Advanced Microstructures and Devices, Baton Rouge, Louisiana 70806, United States
| | - Kevin M McPeak
- Gordon and Mary Cain Department of Chemical Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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16
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Cheng Z, Jones MR. Assembly of planar chiral superlattices from achiral building blocks. Nat Commun 2022; 13:4207. [PMID: 35864092 PMCID: PMC9304327 DOI: 10.1038/s41467-022-31868-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 07/07/2022] [Indexed: 11/28/2022] Open
Abstract
The spontaneous assembly of chiral structures from building blocks that lack chirality is fundamentally important for colloidal chemistry and has implications for the formation of advanced optical materials. Here, we find that purified achiral gold tetrahedron-shaped nanoparticles assemble into two-dimensional superlattices that exhibit planar chirality under a balance of repulsive electrostatic and attractive van der Waals and depletion forces. A model accounting for these interactions shows that the growth of planar structures is kinetically preferred over similar three-dimensional products, explaining their selective formation. Exploration and mapping of different packing symmetries demonstrates that the hexagonal chiral phase forms exclusively because of geometric constraints imposed by the presence of constituent tetrahedra with sharp tips. A formation mechanism is proposed in which the chiral phase nucleates from within a related 2D achiral phase by clockwise or counterclockwise rotation of tetrahedra about their central axis. These results lay the scientific foundation for the high-throughput assembly of planar chiral metamaterials. The formation of nanostructures with chiral symmetry often requires chiral directing agents at a smaller length scale. Here, the authors report the self-assembly of 2D chiral superlattices from achiral tetrahedron-shaped building blocks.
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Affiliation(s)
- Zhihua Cheng
- Department of Chemistry, Rice University, Houston, TX, US
| | - Matthew R Jones
- Department of Chemistry, Rice University, Houston, TX, US. .,Department of Materials Science & Nanoengineering, Rice University, Houston, TX, US.
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17
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Lin HT, Hsu YY, Cheng PJ, Wang WT, Chang SW, Shih MH. In situ tunable circular dichroism of flexible chiral metasurfaces composed of plasmonic nanorod trimers. NANOSCALE ADVANCES 2022; 4:2428-2434. [PMID: 36134130 PMCID: PMC9418018 DOI: 10.1039/d2na00144f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 03/13/2022] [Indexed: 06/16/2023]
Abstract
The circularly polarized light source is one of the keys to chiral photonic circuits and systems. However, it is difficult to integrate conventional light-emitting devices with circular polarization converters directly into compact chip-scale photonic systems partly because of their bulky structures. In this study, in situ optical chirality tunable nanorod trimer metasurfaces consisting of two types of nanorod dimers are demonstrated and integrated with a flexible polydimethylsiloxane (PDMS) substrate. The optical chirality variations originating from the tunable asymmetricity of nanorod trimers under different stretching scenarios are evaluated. Through the processes, the gap distances between nanorods are varied, and the degree of circular polarization of the transmitted wave is controlled through the manipulation of localized surface plasmon resonance (LSPR) coupling. The results reveal the circular dichroism tunability and durability of fabricated chiral metasurfaces which can be important elements for chip-scale flexible optoelectronic integrated circuits for sensing, display and communication applications.
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Affiliation(s)
- Hsiang-Ting Lin
- Research Center for Applied Sciences, Academia Sinica Taipei 11529 Taiwan
| | - Yao-Yu Hsu
- Research Center for Applied Sciences, Academia Sinica Taipei 11529 Taiwan
- Department of Photonics and Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan
| | - Pi-Ju Cheng
- Research Center for Applied Sciences, Academia Sinica Taipei 11529 Taiwan
| | - Wei-Ting Wang
- Research Center for Applied Sciences, Academia Sinica Taipei 11529 Taiwan
| | - Shu-Wei Chang
- Research Center for Applied Sciences, Academia Sinica Taipei 11529 Taiwan
- Department of Photonics and Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan
| | - Min-Hsiung Shih
- Research Center for Applied Sciences, Academia Sinica Taipei 11529 Taiwan
- Department of Photonics and Institute of Electro-Optical Engineering, National Yang Ming Chiao Tung University Hsinchu 30010 Taiwan
- Department of Photonics, National Sun Yat-sen University Kaohsiung 80424 Taiwan
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18
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Nanoengineering of conductively coupled metallic nanoparticles towards selective resonance modes within the near-infrared regime. Sci Rep 2022; 12:7829. [PMID: 35550525 PMCID: PMC9098514 DOI: 10.1038/s41598-022-11539-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/08/2022] [Indexed: 11/08/2022] Open
Abstract
In this work, the mode transition effect of different plasmonic resonances in linked dimers by a conductive junction is numerically investigated.Without the junction, the dimer supports a single dipolar bonding plasmon mode, while two new resonance modes, a screened bonding dipolar mode and a low energy charge transfer plasmon mode, emerge when two nanoparticles are linked via a bridge. Such effect is proved to be unrelated to the shape of the nanoparticles, whether sphere, core-shell or nanoegg. However, it was found that the status of each specific resonance mode is profoundly influenced by the shape of nanoparticles. Furthermore, a detailed discussion of mechanisms of controlling plasmon modes, specially charge transfer mode, and tuning their corresponding spectra in bridged nanoparticles as functions of nanoparticle parameters and junction conductance is presented. These results show that the optical response of the dimer is highly sensitive to changes in the inter-particle gap. While the capacitive dimer provides a strong hotstop, the conductive dimer leads to highly controllable low energy plasmon mode at the mid-infrared region appropriate for novel applications. These findings may serve as an important guide for optical properties of linked nanoparticles as well as understanding the transition between the capacitive and conductive coupling.
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19
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Heyvaert W, Pedrazo-Tardajos A, Kadu A, Claes N, González-Rubio G, Liz-Marzán LM, Albrecht W, Bals S. Quantification of the Helical Morphology of Chiral Gold Nanorods. ACS MATERIALS LETTERS 2022; 4:642-649. [PMID: 35400146 PMCID: PMC8986031 DOI: 10.1021/acsmaterialslett.2c00055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Accepted: 03/02/2022] [Indexed: 05/26/2023]
Abstract
Chirality in inorganic nanoparticles and nanostructures has gained increasing scientific interest, because of the possibility to tune their ability to interact differently with left- and right-handed circularly polarized light. In some cases, the optical activity is hypothesized to originate from a chiral morphology of the nanomaterial. However, quantifying the degree of chirality in objects with sizes of tens of nanometers is far from straightforward. Electron tomography offers the possibility to faithfully retrieve the three-dimensional morphology of nanomaterials, but only a qualitative interpretation of the morphology of chiral nanoparticles has been possible so far. We introduce herein a methodology that enables us to quantify the helicity of complex chiral nanomaterials, based on the geometrical properties of a helix. We demonstrate that an analysis at the single particle level can provide significant insights into the origin of chiroptical properties.
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Affiliation(s)
- Wouter Heyvaert
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | | | - Ajinkya Kadu
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Nathalie Claes
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
| | - Guillermo González-Rubio
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014, Donostia-San Sebastián, Spain
- Physical Chemistry Department, University of Konstanz, Universitätsstraße 10, Box 714, 78457 Konstanz, Germany
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Basque Research and Technology Alliance (BRTA), 20014, Donostia-San Sebastián, Spain
- Centro de Investigación Biomédica en Red de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), 20014, Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
| | - Wiebke Albrecht
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
- Center for Nanophotonics, AMOLF, Science Park 104, 1098 XG Amsterdam, The Netherlands
| | - Sara Bals
- EMAT and NANOlab Center of Excellence, University of Antwerp, 2020 Antwerp, Belgium
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20
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Ohnoutek L, Olohan BJ, Jones RR, Zheng X, Jeong HH, Valev VK. Second harmonic Rayleigh scattering optical activity of single Ag nanohelices in a liquid. NANOSCALE 2022; 14:3888-3898. [PMID: 35212336 DOI: 10.1039/d1nr06800h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Determining the chirality of molecules and nanoparticles often relies on circular dichroism and optical rotation: two chiral optical (chiroptical) effects in the linear optical regime. Although these linear effects are weak compared to nonlinear chiroptical effects, they have the advantage of being measured in isotropic liquids - free from the complications of anisotropy. Recently, a nonlinear effect: hyper-Rayleigh scattering optical activity (HRS OA) has been shown to reliably distinguish between the two chiral forms of Ag nanohelices, suspended in isotropic liquids. However, this first demonstration of HRS OA also opened new questions. For instance, at a fundamental level, it is not clear what the role of interactions between nanoparticles is. Moreover, the influence of the ultrafast pulse chirp is unknown. Here, we demonstrate HRS OA from well below two Ag nanohelices in the illumination volume, precluding any interactions. Additionally, we performed the first measurements of HRS depolarization ratios in this system and find a value of ≈1. We also show that HRS is highly robust against the chirp of the ultrafast pulses. An important reason for the strong (down to single nanohelix) sensitivity of our experiments is the large chiroptical interaction at the fundamental frequency; this point is illustrated with two sets of numerical simulations of the electromagnetic near-fields. Our results highlight HRS OA as a highly sensitive experimental method for characterization of chiral solutions/suspensions, in tiny illumination volumes.
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Affiliation(s)
- Lukas Ohnoutek
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
| | - Ben J Olohan
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
| | - Robin R Jones
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
| | - Xuezhi Zheng
- Department of Electrical Engineering (ESAT), WaveCore Division, KU Leuven, Kasteelpark Arenberg 10, BUS 2444, Leuven, B-3001, Belgium
| | - Hyeon-Ho Jeong
- Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
- School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, 61005 Gwangju, Republic of Korea
| | - Ventsislav K Valev
- Centre for Photonics and Photonic Materials, University of Bath, Bath, BA2 7AY, UK
- Centre for Nanoscience and Nanotechnology, University of Bath, Bath, BA2 7AY, UK
- Centre for Therapeutic Innovation, University of Bath, Bath, BA2 7AY, UK.
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21
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Li Z, Kang L, Lord RW, Park K, Gillman A, Vaia RA, Schaak RE, Werner DH, Knappenberger KL. Plasmon-Mediated Chiroptical Second Harmonic Generation from Seemingly Achiral Gold Nanorods. ACS NANOSCIENCE AU 2022; 2:32-39. [PMID: 37101517 PMCID: PMC10114620 DOI: 10.1021/acsnanoscienceau.1c00014] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Throughout nature, simple rules explain complex phenomena, such as the selective interaction of chiral objects with circularly polarized light. Here, we demonstrate chiroptical signals from gold nanorods, which are seemingly achiral structures. Shape anisotropy due to atomic-level faceting and rounding at the tips of nanorods, which are free of chiral surface ligands, induces linear-to-circular polarization modulation during second harmonic generation. The intrinsic nanorod chiroptical response is increased by plasmon-resonant excitation, which preferentially amplifies circularly polarized harmonic signals. This structure-plasmon interplay is uniquely resolved by polarization-resolved second harmonic generation measurements. The material's second-order polarizability is the product of the structure-dependent lattice-normal susceptibility and local surface plasmon field vectors. Synthetically scalable plasmon-supporting nanorods that amplify small circular dichroism signals provide a simple, assembly-free platform for chiroptical transduction.
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Affiliation(s)
- Zehua Li
- Department
of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Lei Kang
- Department
of Electrical Engineering and Center for Nanoscale Science, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Robert W. Lord
- Department
of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kyoungweon Park
- Air
Force Research Laboratory, 2941 Hobson Way, Wright-Patterson Air Force
Base, Ohio 45433, United States
| | - Andrew Gillman
- Air
Force Research Laboratory, 2941 Hobson Way, Wright-Patterson Air Force
Base, Ohio 45433, United States
| | - Richard A. Vaia
- Air
Force Research Laboratory, 2941 Hobson Way, Wright-Patterson Air Force
Base, Ohio 45433, United States
| | - Raymond E. Schaak
- Department
of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department
of Chemical Engineering, The Pennsylvania
State University, University Park, Pennsylvania 16802, United States
| | - Douglas H. Werner
- Department
of Electrical Engineering and Center for Nanoscale Science, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Kenneth L. Knappenberger
- Department
of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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22
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23
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John N, Mariamma AT. Recent developments in the chiroptical properties of chiral plasmonic gold nanostructures: bioanalytical applications. Mikrochim Acta 2021; 188:424. [PMID: 34811580 PMCID: PMC8608422 DOI: 10.1007/s00604-021-05066-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 10/14/2021] [Indexed: 11/25/2022]
Abstract
The presence of excess L-amino acid in the Murchison meteorite, circular polarization effect in the genesis of stars and existence of chirality in interstellar molecules contribute to the origin of life on earth. Chiral-sensitive techniques have been employed to untangle the secret of the symmetries of the universe, designing of effective secure drugs and investigation of chiral biomolecules. The relationship between light and chiral molecules was employed to probe and explore such molecules using spectroscopy techniques. The mutual interaction between electromagnetic spectrum and chirality of matter give rise to distinct optical response, which advances vital information contents in chiroptical spectroscopy. Chiral plasmonic gold nanoparticle exhibits distinctive circular dichroism peaks in broad wavelength range thereby crossing the limits of its characterization. The emergence of strong optical activity of gold nanosystem is related to its high polarizability, resulting in plasmonic and excitonic effects on incident photons. Inspired by the development of advanced chiral plasmonic nanomaterials and exploring its properties, this review gives an overview of various chiral gold nanostructures and the mechanism behind its chiroptical properties. Finally, we highlight the application of different chiral gold nanomaterials in the field of catalysis and medical applications with special emphasis to biosensing and biodetection.
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Affiliation(s)
- Nebu John
- The Post Graduate and Research Department of Chemistry, Mar Thoma College, Mahatma Gandhi University, Tiruvalla, 689103 Kerala India
| | - Anslin Thankachan Mariamma
- The Post Graduate Department of Mathematics, St. Gregorios College, University of Kerala, Kottarakara, 691531 Kerala India
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24
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Zheng J, Cheng X, Zhang H, Bai X, Ai R, Shao L, Wang J. Gold Nanorods: The Most Versatile Plasmonic Nanoparticles. Chem Rev 2021; 121:13342-13453. [PMID: 34569789 DOI: 10.1021/acs.chemrev.1c00422] [Citation(s) in RCA: 180] [Impact Index Per Article: 60.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gold nanorods (NRs), pseudo-one-dimensional rod-shaped nanoparticles (NPs), have become one of the burgeoning materials in the recent years due to their anisotropic shape and adjustable plasmonic properties. With the continuous improvement in synthetic methods, a variety of materials have been attached around Au NRs to achieve unexpected or improved plasmonic properties and explore state-of-the-art technologies. In this review, we comprehensively summarize the latest progress on Au NRs, the most versatile anisotropic plasmonic NPs. We present a representative overview of the advances in the synthetic strategies and outline an extensive catalogue of Au-NR-based heterostructures with tailored architectures and special functionalities. The bottom-up assembly of Au NRs into preprogrammed metastructures is then discussed, as well as the design principles. We also provide a systematic elucidation of the different plasmonic properties associated with the Au-NR-based structures, followed by a discussion of the promising applications of Au NRs in various fields. We finally discuss the future research directions and challenges of Au NRs.
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Affiliation(s)
- Jiapeng Zheng
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Xizhe Cheng
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Han Zhang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Xiaopeng Bai
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Ruoqi Ai
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
| | - Lei Shao
- Beijing Computational Science Research Center, Beijing 100193, China
| | - Jianfang Wang
- Department of Physics, The Chinese University of Hong Kong, Shatin, Hong Kong SAR 999077, China
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25
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Kim JM, Lee C, Lee Y, Lee J, Park SJ, Park S, Nam JM. Synthesis, Assembly, Optical Properties, and Sensing Applications of Plasmonic Gap Nanostructures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2006966. [PMID: 34013617 DOI: 10.1002/adma.202006966] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/30/2020] [Indexed: 06/12/2023]
Abstract
Plasmonic gap nanostructures (PGNs) have been extensively investigated mainly because of their strongly enhanced optical responses, which stem from the high intensity of the localized field in the nanogap. The recently developed methods for the preparation of versatile nanogap structures open new avenues for the exploration of unprecedented optical properties and development of sensing applications relying on the amplification of various optical signals. However, the reproducible and controlled preparation of highly uniform plasmonic nanogaps and the prediction, understanding, and control of their optical properties, especially for nanogaps in the nanometer or sub-nanometer range, remain challenging. This is because subtle changes in the nanogap significantly affect the plasmonic response and are of paramount importance to the desired optical performance and further applications. Here, recent advances in the synthesis, assembly, and fabrication strategies, prediction and control of optical properties, and sensing applications of PGNs are discussed, and perspectives toward addressing these challenging issues and the future research directions are presented.
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Affiliation(s)
- Jae-Myoung Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Chungyeon Lee
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Yeonhee Lee
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jinhaeng Lee
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, South Korea
| | - So-Jung Park
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, South Korea
| | - Sungho Park
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, South Korea
| | - Jwa-Min Nam
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
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26
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Wang Y, Hu H, Tang J, Meng S, Xu H, Ding T. Plasmon-Directed On-Wire Growth of Branched Silver Nanowires with Chiroptic Activity. ACS NANO 2021; 15:16404-16410. [PMID: 34558905 DOI: 10.1021/acsnano.1c05796] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Silver nanowires (Ag NWs) present prominent waveguiding properties of subwavelength light due to their nanoconfinement with propagating surface plasmons, which is of great importance for on-chip integration of nanophotonic devices and optical computation. Such propagating plasmons also exert plasmonic forces, which can be utilized to manipulate nanoparticles (NPs) beyond the diffraction limit. However, such controllability is spatially limited to the near fields, whereas a large portion of uncontrolled particles are randomly deposited on the chips, which could be detrimental to the integrated optical devices. Herein we shine continuous wave laser at one end of the Ag NW immersed in AgNO3 solution to launch the propagating surface plasmons. The laser irradiation also induces the photoreduction of Ag+ ions to locally generate tiny Ag NPs, which evolve into large Ag flake branches closer to the other end of the Ag NW. Such a peculiar growth is due to the synergistic effect of plasmonic forces and the thermophoretic/thermo-osmosis forces induced by temperature gradient. These branched Ag NWs with sharp angles are intrinsically chiral, which can be partially controlled by changing the irradiation location, forming plasmonic chiral enantiomers. The circular differential scattering (CDS) response of these branched Ag NWs can be as large as 40%, which can be used for chiral enantiomer sensing with spectral dissymmetric factor up to 4 nm induced by phenylalanine. This plasmon-directed on-wire growth not only offers a facile approach for generating plasmonic chiral nanostructures with remote controllability, but also provides significant insights on the synergistic effect of plasmonic forces and thermal-induced forces, which has great implications for self-assembly and integration of on-chip optics.
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Affiliation(s)
- Yunxia Wang
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Huatian Hu
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Jibo Tang
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Shuang Meng
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - Hongxing Xu
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Tao Ding
- Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan, 430072, China
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27
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Warning LA, Miandashti AR, McCarthy LA, Zhang Q, Landes CF, Link S. Nanophotonic Approaches for Chirality Sensing. ACS NANO 2021; 15:15538-15566. [PMID: 34609836 DOI: 10.1021/acsnano.1c04992] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Chiral nanophotonic materials are promising candidates for biosensing applications because they focus light into nanometer dimensions, increasing their sensitivity to the molecular signatures of their surroundings. Recent advances in nanomaterial-enhanced chirality sensing provide detection limits as low as attomolar concentrations (10-18 M) for biomolecules and are relevant to the pharmaceutical industry, forensic drug testing, and medical applications that require high sensitivity. Here, we review the development of chiral nanomaterials and their application for detecting biomolecules, supramolecular structures, and other environmental stimuli. We discuss superchiral near-field generation in both dielectric and plasmonic metamaterials that are composed of chiral or achiral nanostructure arrays. These materials are also applicable for enhancing chiroptical signals from biomolecules. We review the plasmon-coupled circular dichroism mechanism observed for plasmonic nanoparticles and discuss how hotspot-enhanced plasmon-coupled circular dichroism applies to biosensing. We then review single-particle spectroscopic methods for achieving the ultimate goal of single-molecule chirality sensing. Finally, we discuss future outlooks of nanophotonic chiral systems.
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Affiliation(s)
| | | | | | - Qingfeng Zhang
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
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28
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Li F, Wang K, Deng N, Xu J, Yi M, Xiong B, Zhu J. Self-Assembly of Polymer End-Tethered Gold Nanorods into Two-Dimensional Arrays with Tunable Tilt Structures. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6566-6574. [PMID: 33522228 DOI: 10.1021/acsami.0c22468] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We demonstrated a facile yet effective strategy for self-assembly of polymer end-tethered gold nanorods (GNRs) into tunable two-dimensional (2D) arrays with the assistance of supramolecules of hydrogen bonded poly(4-vinyl pyridine) (P4VP) and 3-n-pentadecylphenol (PDP). Well-ordered 2D arrays with micrometer size were obtained by rupturing the assembled supramolecular matrix with a selective solvent. The formation of long-range ordered 2D arrays during a drying process was observed via small-angle X-ray scattering. Interestingly, the packing structure of the ordered arrays strongly depends on the molecular weight (Mw) of the polymer ligands and the size of the GNRs. By increasing Mw of the polymer ligands, tilted arrays can be obtained. The average angle between GNRs and the surface normal direction of the layered 2D arrays changes from 0 to 37° with the increase in Mw of the polymer ligands. A mechanism for assembly behavior of dumbbell shapes with a soft shell structure has been proposed. The resulting GNR arrays with different orientations showed anisotropic surface-enhanced Raman scattering (SERS) performance. We showed that the vertically ordered GNR arrays exhibited ∼3 times higher SERS signals than the tilt ordered arrays. The results prove that the polymer end-tethered GNRs can be used as a building block for preparing the tilted 2D arrays with tunable physicochemical properties, which could have a wide range of potential applications in photonics, electronics, plasmonics, etc.
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Affiliation(s)
- Fan Li
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Ke Wang
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Ningxin Deng
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jiangping Xu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Mingdong Yi
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Bijin Xiong
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
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29
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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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30
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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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31
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Chiroptical spectroscopy of a freely diffusing single nanoparticle. Nat Commun 2020; 11:4513. [PMID: 32908138 PMCID: PMC7481242 DOI: 10.1038/s41467-020-18166-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 08/05/2020] [Indexed: 11/09/2022] Open
Abstract
Chiral plasmonic nanoparticles can exhibit strong chiroptical signals compared to the corresponding molecular response. Observations are, however, generally restricted to measurements on stationary single particles with a fixed orientation, which complicates the spectral analysis. Here, we report the spectroscopic observation of a freely diffusing single chiral nanoparticle in solution. By acquiring time-resolved circular differential scattering signals we show that the spectral interpretation is significantly simplified. We experimentally demonstrate the equivalence between time-averaged chiral spectra observed for an individual nanostructure and the corresponding ensemble spectra, and thereby demonstrate the ergodic principle for chiroptical spectroscopy. We also show how it is possible for an achiral particle to yield an instantaneous chiroptical response, whereas the time-averaged signals are an unequivocal measure of chirality. Time-resolved chiroptical spectroscopy on a freely moving chiral nanoparticle advances the field of single-particle spectroscopy, and is a means to obtain the true signature of the nanoparticle's chirality.
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32
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Abstract
The ability of certain materials to discriminate between two opposite light polarizations is the basic principle behind several technologies such as liquid crystal displays and three-dimensional glasses. While there are numerous forms of light polarization, only linear and circular polarizations, which have wave motion in a flat sheet or helix, respectively, are typically used. Here, we utilize trochoidal polarizations with cartwheeling wave motion. We demonstrate that single gold nanorod dimers can discriminate between trochoidal fields rotating in opposite directions, which we term trochoidal dichroism. Trochoidal dichroism forms an additional classification of polarized light–matter interaction and could inspire the development of optical studies uniquely sensitive to molecules with cartwheeling charge motion, potentially relevant for probing key light-harvesting antennas. Matter’s sensitivity to light polarization is characterized by linear and circular polarization effects, corresponding to the system’s anisotropy and handedness, respectively. Recent investigations into the near-field properties of evanescent waves have revealed polarization states with out-of-phase transverse and longitudinal oscillations, resulting in trochoidal, or cartwheeling, field motion. Here, we demonstrate matter’s inherent sensitivity to the direction of the trochoidal field and name this property trochoidal dichroism. We observe trochoidal dichroism in the differential excitation of bonding and antibonding plasmon modes for a system composed of two coupled dipole scatterers. Trochoidal dichroism constitutes the observation of a geometric basis for polarization sensitivity that fundamentally differs from linear and circular dichroism. It could also be used to characterize molecular systems, such as certain light-harvesting antennas, with cartwheeling charge motion upon excitation.
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33
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Cho NH, Byun GH, Lim YC, Im SW, Kim H, Lee HE, Ahn HY, Nam KT. Uniform Chiral Gap Synthesis for High Dissymmetry Factor in Single Plasmonic Gold Nanoparticle. ACS NANO 2020; 14:3595-3602. [PMID: 32134639 DOI: 10.1021/acsnano.9b10094] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Synthesis of chiral plasmonic materials has been highlighted for the last decades with their optical properties and versatile potential applications. Recently reported aqueous-based amino acid- and peptide-directed synthesis of chiral plasmonic gold nanoparticles with 432 point-group symmetry shows exceptionally high chiroptic response within 100 nm scales. Despite its already excellent chiroptic response, a single-nanoparticle dark field scattering study revealed that full chiroptic potential of chiral gold nanoparticle is limited with its overall synthetic uniformity. Based on this knowledge, we present a multi-chirality-evolution step synthesis method for the enhancement of chiroptic response through an increase in particle uniformity. Detailed time variant study and interrelationship study of reaction parameters allowed the systematic construction of design principles for chiral nanoparticles with exceptional chiroptic response. With the application of precisely controlled growth kinetic to two distinct growth regimes, modified chiral gold nanoparticles showed significantly improved uniformity, achieving an improved dissymmetry factor of g = 0.31. We expect that our strategy will aid in precise morphology and property control for chiral nanomaterials, which can be used in various plasmonic metamaterial applications.
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Affiliation(s)
- Nam Heon Cho
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Gi Hyun Byun
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Yae-Chan Lim
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Sang Won Im
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyeohn Kim
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hye-Eun Lee
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyo-Yong Ahn
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Ki Tae Nam
- Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
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34
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Bigdeli A, Ghasemi F, Fahimi-Kashani N, Abbasi-Moayed S, Orouji A, Jafar-Nezhad Ivrigh Z, Shahdost-Fard F, Hormozi-Nezhad MR. Optical nanoprobes for chiral discrimination. Analyst 2020; 145:6416-6434. [DOI: 10.1039/d0an01211d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chiral recognition can be achieved by exploiting chiral properties of nanoparticles within various colorimetric and luminescent sensing systems.
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Affiliation(s)
- Arafeh Bigdeli
- Chemistry Department
- Sharif University of Technology
- Tehran
- Iran
| | - Forough Ghasemi
- Department of Nanotechnology
- Agricultural Biotechnology Research Institute of Iran (ABRII)
- Agricultural Research
- Education
- and Extension Organization (AREEO)
| | | | | | - Afsaneh Orouji
- Chemistry Department
- Sharif University of Technology
- Tehran
- Iran
| | | | | | - M. Reza Hormozi-Nezhad
- Chemistry Department
- Sharif University of Technology
- Tehran
- Iran
- Institute for Nanoscience and Nanotechnology
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35
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Yi C, Yang Y, Liu B, He J, Nie Z. Polymer-guided assembly of inorganic nanoparticles. Chem Soc Rev 2019; 49:465-508. [PMID: 31845685 DOI: 10.1039/c9cs00725c] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The self-assembly of inorganic nanoparticles is of great importance in realizing their enormous potentials for broad applications due to the advanced collective properties of nanoparticle ensembles. Various molecular ligands (e.g., small molecules, DNAs, proteins, and polymers) have been used to assist the organization of inorganic nanoparticles into functional structures at different hierarchical levels. Among others, polymers are particularly attractive for use in nanoparticle assembly, because of the complex architectures and rich functionalities of assembled structures enabled by polymers. Polymer-guided assembly of nanoparticles has emerged as a powerful route to fabricate functional materials with desired mechanical, optical, electronic or magnetic properties for a broad range of applications such as sensing, nanomedicine, catalysis, energy storage/conversion, data storage, electronics and photonics. In this review article, we summarize recent advances in the polymer-guided self-assembly of inorganic nanoparticles in both bulk thin films and solution, with an emphasis on the role of polymers in the assembly process and functions of resulting nanostructures. Precise control over the location/arrangement, interparticle interaction, and packing of inorganic nanoparticles at various scales are highlighted.
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Affiliation(s)
- Chenglin Yi
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Yiqun Yang
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, Jiangsu 210023, China and Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Jie He
- Department of Chemistry and Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, CT 06268, USA.
| | - Zhihong Nie
- State Key Laboratory of Molecular Engineering of Polymers, Department of Macromolecular Science, Fudan University, Shanghai, 200438, P. R. China.
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36
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Voss JM, Olshin PK, Charbonnier R, Drabbels M, Lorenz UJ. In Situ Observation of Coulomb Fission of Individual Plasmonic Nanoparticles. ACS NANO 2019; 13:12445-12451. [PMID: 31536329 DOI: 10.1021/acsnano.9b06664] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Reshaping plasmonic nanoparticles with laser pulses has been extensively researched as a tool for tuning their properties. However, in the absence of direct observations of the processes involved, important mechanistic details have remained elusive. Here, we present an in situ electron microscopy study of one such process that involves Coulomb fission of plasmonic nanoparticles under femtosecond laser irradiation. We observe that gold nanoparticles encapsulated in a silica shell fission by emitting progeny droplets comprised of about 10-500 atoms, with ejection preferentially occurring along the laser polarization direction. Under continued irradiation, the emitted droplets coalesce into a second core within the silica shell, and the system evolves into a dual-core particle. Our findings are consistent with a mechanism in which electrons are preferentially emitted from the gold core along the laser polarization direction. The resulting anisotropic charge distribution in the silica shell then determines the direction in which progeny droplets are ejected. In addition to yielding insights into the mechanism of Coulomb fission in plasmonic nanoparticles, our experiments point toward a facile method for forming surfaces decorated with aligned dual-gold-core silica shell particles.
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Affiliation(s)
- Jonathan M Voss
- Laboratory of Molecular Nanodynamics , École Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
| | - Pavel K Olshin
- Laboratory of Molecular Nanodynamics , École Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
| | - Romain Charbonnier
- Laboratory of Molecular Nanodynamics , École Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
| | - Marcel Drabbels
- Laboratory of Molecular Nanodynamics , École Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
| | - Ulrich J Lorenz
- Laboratory of Molecular Nanodynamics , École Polytechnique Fédérale de Lausanne , 1015 Lausanne , Switzerland
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37
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Zhang Q, Hernandez T, Smith KW, Hosseini Jebeli SA, Dai AX, Warning L, Baiyasi R, McCarthy LA, Guo H, Chen DH, Dionne JA, Landes CF, Link S. Unraveling the origin of chirality from plasmonic nanoparticle-protein complexes. Science 2019; 365:1475-1478. [DOI: 10.1126/science.aax5415] [Citation(s) in RCA: 121] [Impact Index Per Article: 24.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Accepted: 08/02/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Qingfeng Zhang
- Department of Chemistry, Rice University, Houston, TX, USA
- Smalley-Curl Institute, Rice University, Houston, TX, USA
| | | | - Kyle W. Smith
- Department of Chemistry, Rice University, Houston, TX, USA
| | | | - Alan X. Dai
- Department of Chemical Engineering, Stanford University, Stanford, CA, USA
| | - Lauren Warning
- Department of Chemistry, Rice University, Houston, TX, USA
| | - Rashad Baiyasi
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, USA
| | | | - Hua Guo
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX, USA
| | - Dong-Hua Chen
- Department of Structural Biology, Stanford University, Stanford, CA, USA
| | - Jennifer A. Dionne
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
| | - Christy F. Landes
- Department of Chemistry, Rice University, Houston, TX, USA
- Smalley-Curl Institute, Rice University, Houston, TX, USA
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, USA
| | - Stephan Link
- Department of Chemistry, Rice University, Houston, TX, USA
- Smalley-Curl Institute, Rice University, Houston, TX, USA
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, USA
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38
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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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39
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Chen W, Guo J, Zhao Q, Gopalan P, Fafarman AT, Keller A, Zhang M, Wu Y, Murray CB, Kagan CR. Designing Strong Optical Absorbers via Continuous Tuning of Interparticle Interaction in Colloidal Gold Nanocrystal Assemblies. ACS NANO 2019; 13:7493-7501. [PMID: 31136152 DOI: 10.1021/acsnano.9b02818] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We program the optical properties of colloidal Au nanocrystal (NC) assemblies via an unconventional ligand hybridization (LH) strategy to precisely engineer interparticle interactions and design materials with optical properties difficult or impossible to achieve in bulk form. Long-chain hydrocarbon ligands used in NC synthesis are partially exchanged, from 0% to 100%, with compact thiocyanate ligands by controlling the reaction time for exchange. The resulting NC assemblies show transmittance, reflectance, optical permittivity, and direct-current (DC) resistivity that continuously traverse a dielectric-metal transition, providing analog tuning of their physical properties, unlike the digital control realized by complete exchange with ligands of varying length. Exploiting this LH strategy, we create Au NC assemblies that are strong, ultrathin film optical absorbers, as seen by a 6× increase in the extinction of infrared light compared to that in bulk Au thin films and by a temperature rise of 20 °C upon illumination with 808 nm light. Our LH strategy may be applied to the design of materials constructed from NCs of different size, shape, and composition for specific applications.
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Affiliation(s)
| | | | | | | | - Aaron T Fafarman
- Department of Chemical and Biological Engineering , Drexel University , Philadelphia , Pennsylvania 19104 , United States
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40
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Lin L, Lepeshov S, Krasnok A, Jiang T, Peng X, Korgel BA, Alù A, Zheng Y. All-optical reconfigurable chiral meta-molecules. MATERIALS TODAY (KIDLINGTON, ENGLAND) 2019; 25:10-20. [PMID: 31777449 PMCID: PMC6880947 DOI: 10.1016/j.mattod.2019.02.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Chirality is a ubiquitous phenomenon in the natural world. Many biomolecules without inversion symmetry such as amino acids and sugars are chiral molecules. Measuring and controlling molecular chirality at a high precision down to the atomic scale are highly desired in physics, chemistry, biology, and medicine, however, have remained challenging. Herein, we achieve all-optical reconfigurable chiral meta-molecules experimentally using metallic and dielectric colloidal particles as artificial atoms or building blocks to serve at least two purposes. One is that the on-demand meta-molecules with strongly enhanced optical chirality are well-suited as substrates for surface-enhanced chiroptical spectroscopy of chiral molecules and as active components in optofluidic and nanophotonic devices. The other is that the bottom-up-assembled colloidal meta-molecules provide microscopic models to better understand the origin of chirality in the actual atomic and molecular systems.
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Affiliation(s)
- Linhan Lin
- Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | | | - Alex Krasnok
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Photonics Initiative, Advanced Science Research Center, City University of New York, New York, NY 10031, USA
| | - Taizhi Jiang
- Mc Ketta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Xiaolei Peng
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Brian A. Korgel
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
- Mc Ketta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Andrea Alù
- Department of Electrical and Computer Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Photonics Initiative, Advanced Science Research Center, City University of New York, New York, NY 10031, USA
- Physics Program, Graduate Center, City University of New York, NY 10016, USA
- Department of Electrical Engineering, City College of The City University of New York, NY 10031, USA
| | - Yuebing Zheng
- Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
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41
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Jin R. Understanding Silica from the Viewpoint of Asymmetry. Chemistry 2019; 25:6270-6283. [DOI: 10.1002/chem.201805053] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Ren‐Hua Jin
- Department of Material and Life ChemistryKanagawa University 3-2-7 Rokkakubashi Yokohama 221-8686 Japan
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42
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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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43
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Tsunega S, Tanabe T, Jin RH. Unusual chirality transfer from silica to metallic nanoparticles with formation of distorted atomic array in crystal lattice structure. NANOSCALE ADVANCES 2019; 1:581-591. [PMID: 36132254 PMCID: PMC9473168 DOI: 10.1039/c8na00159f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 09/25/2018] [Indexed: 06/15/2023]
Abstract
Transfer of chirality from chiral organic molecules to metallic nanoparticles (NPs) is a very attractive field of research and some unique approaches to obtaining chiral metallic NPs have been developed. However, to date, there has been no report in the literature that the chiral information of silica can be transferred into metallic NPs. In this work, a new chirality transfer system to metallic NPs from chiral silica has been achieved. The chiral transfer was performed by simple two steps: (1) trapping metal cations of silver (Ag) and gold (Au) in chiral silica of nano fibrous bundles embedding poly(ethyleneimine) inside and (2) thermoreducing the metal ions into metallic NPs. The metallic NPs of Au and Ag grown around a silica frame, using a thermo-reduction (calcination) process, showed a spherical shape with a size of about 30 nm. Interestingly, the metallic NPs detached or isolated from the silica via crushing and/or hydrolysis of the silica showed remarkable circular dichroism activity in their plasmon absorption band with an exciton coupling feature. Using an atomic resolution scanning transmission protocol, it was found that the chiral metallic NPs have a definite distortion in the atomic array in their crystal lattice structures. In comparison, achiral metallic NPs, which were prepared using a similar method around achiral silica bundles, showed a precisely ordered atomic line without distortion.
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Affiliation(s)
- Seiji Tsunega
- Department of Material and Life Chemistry, Kanagawa University 3-2-7 Rokkakubashi Yokohama 221-8686 Japan
| | - Toyokazu Tanabe
- Department of Materials Science and Engineering, National Defense Academy 1-10-20 Hashirimizu Yokosuka 239-8686 Japan
| | - Ren-Hua Jin
- Department of Material and Life Chemistry, Kanagawa University 3-2-7 Rokkakubashi Yokohama 221-8686 Japan
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Abstract
Multiplexed detection of small noncoding RNAs responsible for posttranscriptional regulation of gene expression, known as miRNAs, is essential for understanding and controlling cell development. However, the lifetimes of miRNAs are short and their concentrations are low, which inhibits the development of miRNA-based methods, diagnostics, and treatment of many diseases. Here we show that DNA-bridged assemblies of gold nanorods with upconverting nanoparticles can simultaneously quantify two miRNA cancer markers, namely miR-21 and miR-200b. Energy upconversion in nanoparticles affords efficient excitation of fluorescent dyes via energy transfer in the superstructures with core-satellite geometry where gold nanorods are surrounded by upconverting nanoparticles. Spectral separation of the excitation beam and dye emission wavelengths enables drastic reduction of signal-to-noise ratio and the limit of detection to 3.2 zmol/ngRNA (0.11 amol or 6.5 × 104 copies) and 10.3 zmol/ngRNA (0.34 amol or 2.1 × 105 copies) for miR-21 and miR-200b, respectively. Zeptomolar sensitivity and analytical linearity with respect to miRNA concentration affords multiplexed detection and imaging of these markers, both in living cells and in vivo assays. These findings create a pathway for the creation of an miRNA toolbox for quantitative epigenetics and digital personalized medicine.
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45
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Kumar J, Liz-Marzán LM. Recent Advances in Chiral Plasmonics — Towards Biomedical Applications. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20180236] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jatish Kumar
- CIC biomaGUNE and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| | - Luis M. Liz-Marzán
- CIC biomaGUNE and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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46
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Wang Z, Ai B, Zhou Z, Guan Y, Möhwald H, Zhang G. Free-Standing Plasmonic Chiral Metamaterials with 3D Resonance Cavities. ACS NANO 2018; 12:10914-10923. [PMID: 30335967 DOI: 10.1021/acsnano.8b04106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hollow nanocone array (HNCA) films (cm × cm), composed of two Ag and Au nanoshells, are fabricated via a low-cost and efficient colloidal lithography technique. The relative position of the Ag and Au nanoshells can be controlled to generate various chiral asymmetries. A pronounced chiroptical response is observed in the ultraviolet-visible region with the anisotropy factor up to 10-1, which is rooted in the asymmetric current oscillations and electric field distributions. Beyond previous reports on plasmonic chiral metamaterials, the HNCA can be free-standing and further transferred to other functional and flexible substrates, such as polydimethylsiloxane (PDMS), highly curved surfaces, prepatterned films, and hydrogels, while keeping the original features. The good transferability would make HNCA more flexible in specific applications. Furthermore, the chiral HNCAs offer a series of chiral resonance cavities, which are conducive for the research of chiral sensing, confinement, chiral signal transmission, and amplification. Overall, this work provides a scalable metamaterial to tune the plasmonic chiral response, and HNCA would be a promising candidate of the components in chiral optical devices and sensors.
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Affiliation(s)
- Zengyao Wang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P.R. China
| | - Bin Ai
- Department of Aerospace and Engineering , Texas A&M University , College Station , Texas 77843-3141 , United States
| | - Ziwei Zhou
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P.R. China
| | - Yuduo Guan
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P.R. China
| | - Helmuth Möhwald
- Max Planck Institute of Colloids and Interfaces , D-14424 Potsdam , Germany
| | - Gang Zhang
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun 130012 , P.R. China
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47
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Smith KW, McCarthy LA, Alabastri A, Bursi L, Chang WS, Nordlander P, Link S. Exploiting Evanescent Field Polarization for Giant Chiroptical Modulation from Achiral Gold Half-Rings. ACS NANO 2018; 12:11657-11663. [PMID: 30403839 DOI: 10.1021/acsnano.8b07060] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
For applications seeking to realize on-chip polarization-discriminating nanoantennas, efficient energy conversion from surface waves to far-field radiation is desirable. However, the response of individual nanoantennas to the particular polarization states achievable in surface waves, such as evanescent fields, has not yet been thoroughly investigated. Here, we report the giant modulation of visible light scattering from achiral gold half-rings when switching between evanescent surface wave excitation produced from the total internal reflection of left-handed and right-handed circularly polarized light. The effect is driven by a differing relative phase between the in-plane transverse and longitudinal field oscillations of the evanescent wave depending on the incident light handedness. Because longitudinal field oscillations are not found in free-space excitation, this presents a fundamentally different mechanism for chiroptical responses as traditional mechanisms for circular dichroism only account for purely transversal field oscillations. Although the half-ring scattering modulation is dependent on the wave-vector orientation, an orientation invariant response is also realized in planar chiral nanoantennas composed of 8 half-rings in a rotationally symmetric arrangement, with up to 50% scattering modulation observed at 725 nm. Although both structures are found to produce scattering modulation when switching the handedness of free-space light, the distinct polarization properties of evanescent fields are shown to be strictly required to observe giant scattering modulation. These results ultimately deepen our understanding of the range of possible chiroptical effects in light-matter interactions.
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Affiliation(s)
| | | | - Alessandro Alabastri
- Department of Electrical and Computer Engineering , Rice University , 6100 Main Street, MS 378 , Houston , Texas 77005 , United States
| | - Luca Bursi
- Department of Physics and Astronomy , Rice University , 6100 Main Street, MS 61 , Houston , Texas 77005 , United States
| | | | - Peter Nordlander
- Department of Physics and Astronomy , Rice University , 6100 Main Street, MS 61 , Houston , Texas 77005 , United States
- Department of Electrical and Computer Engineering , Rice University , 6100 Main Street, MS 378 , Houston , Texas 77005 , United States
| | - Stephan Link
- Department of Electrical and Computer Engineering , Rice University , 6100 Main Street, MS 378 , Houston , Texas 77005 , United States
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48
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Zheng G, Bao Z, Pérez-Juste J, Du R, Liu W, Dai J, Zhang W, Lee LYS, Wong KY. Tuning the Morphology and Chiroptical Properties of Discrete Gold Nanorods with Amino Acids. Angew Chem Int Ed Engl 2018; 57:16452-16457. [DOI: 10.1002/anie.201810693] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Guangchao Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Zhiyong Bao
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jorge Pérez-Juste
- Departamento de Química Física y Centro Singular de Investigaciones Biomédicas (CINBIO); Universidad de Vigo; Vigo Spain
| | - Ruolan Du
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Liu
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jiyan Dai
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics; P. O. Box 8009(28) Beijing 100088 P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
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49
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Zheng G, Bao Z, Pérez-Juste J, Du R, Liu W, Dai J, Zhang W, Lee LYS, Wong KY. Tuning the Morphology and Chiroptical Properties of Discrete Gold Nanorods with Amino Acids. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201810693] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Guangchao Zheng
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Zhiyong Bao
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jorge Pérez-Juste
- Departamento de Química Física y Centro Singular de Investigaciones Biomédicas (CINBIO); Universidad de Vigo; Vigo Spain
| | - Ruolan Du
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Liu
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Jiyan Dai
- Department of Applied Physics; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Wei Zhang
- Institute of Applied Physics and Computational Mathematics; P. O. Box 8009(28) Beijing 100088 P. R. China
| | - Lawrence Yoon Suk Lee
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
| | - Kwok-Yin Wong
- State Key Laboratory of Chemical Biology and Drug Discovery; Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University; Hunghom Kowloon Hong Kong China
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50
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Zhang M, Pacheco-Peña V, Yu Y, Chen W, Greybush NJ, Stein A, Engheta N, Murray CB, Kagan CR. Nanoimprinted Chiral Plasmonic Substrates with Three-Dimensional Nanostructures. NANO LETTERS 2018; 18:7389-7394. [PMID: 30257094 DOI: 10.1021/acs.nanolett.8b03785] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report a large-area fabrication method to prepare chiral substrates patterned with arrays of multilayer, three-dimensional nanostructures using a combination of nanoimprint lithography and glancing angle deposition. Several structures are successfully fabricated using this method, including L-shaped, twisted arc and trilayer twisted Au nanorod structures, demonstrating its generality. As one typical example, arrays of L-shaped nanostructures, consisting of two layers of orthogonally oriented Au nanorods separated by a Ge dielectric layer in the thickness direction, exhibit giant optical chirality in the infrared region with an experimentally achieved g-factor as high as 0.38. Electromagnetic simulations show that the optical chirality results from plasmon hybridization between the two orthogonal Au segments. To demonstrate scalability, a 1 cm2 chiral substrate is fabricated with uniform chiral optical property. This method combines both high throughput and precise geometrical control and is therefore promising for applications of chiral metamaterials.
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Affiliation(s)
| | | | | | | | | | - Aaron Stein
- Center for Functional Nanomaterials , Brookhaven National Laboratory , Upton , New York 11973 , United States
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