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Finucci B, Pacoureau N, Rigby CL, Matsushiba JH, Faure-Beaulieu N, Sherman CS, VanderWright WJ, Jabado RW, Charvet P, Mejía-Falla PA, Navia AF, Derrick DH, Kyne PM, Pollom RA, Walls RHL, Herman KB, Kinattumkara B, Cotton CF, Cuevas JM, Daley RK, Dharmadi, Ebert DA, Fernando D, Fernando SMC, Francis MP, Huveneers C, Ishihara H, Kulka DW, Leslie RW, Neat F, Orlov AM, Rincon G, Sant GJ, Volvenko IV, Walker TI, Simpfendorfer CA, Dulvy NK. Fishing for oil and meat drives irreversible defaunation of deepwater sharks and rays. Science 2024; 383:1135-1141. [PMID: 38452078 DOI: 10.1126/science.ade9121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Accepted: 11/02/2023] [Indexed: 03/09/2024]
Abstract
The deep ocean is the last natural biodiversity refuge from the reach of human activities. Deepwater sharks and rays are among the most sensitive marine vertebrates to overexploitation. One-third of threatened deepwater sharks are targeted, and half the species targeted for the international liver-oil trade are threatened with extinction. Steep population declines cannot be easily reversed owing to long generation lengths, low recovery potentials, and the near absence of management. Depth and spatial limits to fishing activity could improve conservation when implemented alongside catch regulations, bycatch mitigation, and international trade regulation. Deepwater sharks and rays require immediate trade and fishing regulations to prevent irreversible defaunation and promote recovery of this threatened megafauna group.
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Affiliation(s)
- Brittany Finucci
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand
| | - Nathan Pacoureau
- Department of Fish and Wildlife Conservation, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Cassandra L Rigby
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
| | - Jay H Matsushiba
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Nina Faure-Beaulieu
- Department of Zoology, Nelson Mandela University, Port Elizabeth, South Africa
- Wildlands Conservation Trust, Pietermaritzburg, South Africa
| | - C Samantha Sherman
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Wade J VanderWright
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Rima W Jabado
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
- Elasmo Project, Dubai, United Arab Emirates
| | - Patricia Charvet
- Programa de Pós-Graduação em Sistemática, Uso e Conservação da Biodiversidade (PPGSis), Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brazil
| | - Paola A Mejía-Falla
- Wildlife Conservation Society, WCS Colombia, Cali, Colombia
- Fundación Colombiana para la Investigación y Conservación de Tiburones y Rayas -SQUALUS, Cali, Colombia
| | - Andrés F Navia
- Fundación Colombiana para la Investigación y Conservación de Tiburones y Rayas -SQUALUS, Cali, Colombia
| | - Danielle H Derrick
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Peter M Kyne
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, Northern Territory, Australia
| | - Riley A Pollom
- Species Recovery Program, Seattle Aquarium, Seattle, WA, USA
| | - Rachel H L Walls
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | | | - Bineesh Kinattumkara
- Zoological Survey of India, Marine Biology Regional Centre, Chennai, Tamil Nadu, India
| | - Charles F Cotton
- Department of Fisheries, Wildlife, and Environmental Science, State University of New York-Cobleskill, Cobleskill, NY, USA
| | - Juan-Martín Cuevas
- Wildlife Conservation Society Argentina, Buenos Aires, Argentina
- Museo de La Plata, Universidad Nacional de La Plata, La Plata, Argentina
| | - Ross K Daley
- Horizon Consultancy, Hobart, Tasmania, Australia
| | - Dharmadi
- Research Centre for Fisheries Management and Conservation, Ministry of Marine Affairs and Fisheries, Government of Indonesia, Jakarta, Indonesia
| | - David A Ebert
- Pacific Shark Research Center, Moss Landing Marine Laboratories, Moss Landing, CA, USA
- South African Institute for Aquatic Biodiversity, Grahamstown, South Africa
- Department of Ichthyology, California Academy of Sciences, San Francisco, CA, USA
| | | | | | - Malcolm P Francis
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand
| | - Charlie Huveneers
- College of Science and Engineering, Flinders University, Adelaide, South Australia, Australia
| | | | - David W Kulka
- Fisheries and Oceans Canada, Dartmouth, Nova Scotia, Canada
| | - Robin W Leslie
- Fisheries Management Branch, Department of Forestry, Fisheries and the Environment, Cape Town, South Africa
- Department of Ichthyology and Fisheries Sciences, Rhodes University, Grahamstown, South Africa
- MA-RE Institute, University of Cape Town, Cape Town, South Africa
| | - Francis Neat
- Global Ocean Institute, World Maritime University, Malmo, Sweden
| | - Alexei M Orlov
- Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russia
- A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Moscow, Russia
- Department of Ichthyology and Hydrobiology, Tomsk State University, Tomsk, Russia
| | - Getulio Rincon
- Coordenação do Curso de Engenharia de Pesca, Universidade Federal do Maranhão-UFMA Campus Pinheiro, Pinheiro, Maranhão, Brazil
| | - Glenn J Sant
- TRAFFIC, University of Wollongong, New South Wales, Australia
- ANCORS, University of Wollongong, New South Wales, Australia
| | - Igor V Volvenko
- Pacific Branch of Russian Federal Research Institute of Fisheries and Oceanography (TINRO), Vladivostok, Russia
| | - Terence I Walker
- School of BioSciences, The University of Melbourne, Parkville, Victoria, Australia
- School of Biological Sciences, Monash University, Clayton, Victoria, Australia
| | - Colin A Simpfendorfer
- College of Science and Engineering, James Cook University, Townsville, Queensland, Australia
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Nicholas K Dulvy
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
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Yamane H, Hoshina M, Yokoshi N, Ishihara H. Mapping electric field components of superchiral field with photo-induced force. J Chem Phys 2024; 160:044115. [PMID: 38284655 DOI: 10.1063/5.0179189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 01/05/2024] [Indexed: 01/30/2024] Open
Abstract
Circular dichroism (CD) of materials, difference in absorbance of left- and right-circularly polarized light, is a standard measure of chirality. Detection of the chirality for individual molecules is a frontier in analytical chemistry and optical science. The usage of a superchiral electromagnetic field near metallic structure is one promising way because it boosts the molecular far-field CD signal. However, it is still elusive as to how such a field actually interacts with the molecules. The cause is that the distribution of the electric field vector is unclear in the vicinity of the metal surface. In particular, it is difficult to directly measure the localized field, e.g., using aperture-type scanning near-field optical microscope. Here, we calculate the three-dimensional (3D) electric field vector, including the longitudinal field, and reveal the whole figure of the near-field CD on a two-dimensional (2D) plane just above the metal surface. Moreover, we propose a method to measure the near-field CD of the whole superchiral field by photo-induced force microscopy (PiFM), where the optical force distribution is mapped in a scanning 2D plane. We numerically demonstrate that, although the presence of the metallic probe tip affects the 3D electric field distribution, the PiFM is sufficiently capable to evaluate the superchiral field. Unveiling the whole figure of near-field is significantly beneficial in obtaining rich information of single molecules with multiple orientations and in analyzing the boosted far-field CD signals.
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Affiliation(s)
- Hidemasa Yamane
- Osaka Research Institute of Industrial Science and Technology, 2-7-1, Ayumino, Izumi-city, Osaka 594-1157, Japan
| | - Masayuki Hoshina
- Department of Physics and Electronics, Osaka Prefecture University, 1-1 Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Nobuhiko Yokoshi
- Department of Physics and Electronics, Osaka Metropolitan University, 1-1 Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Hajime Ishihara
- Department of Materials Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
- Center for Quantum Information and Quantum Biology, Osaka University, Toyonaka, Osaka 560-8531, Japan
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3
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Yamamoto T, Yamane H, Yokoshi N, Oka H, Ishihara H, Sugawara Y. Optical Imaging of a Single Molecule with Subnanometer Resolution by Photoinduced Force Microscopy. ACS Nano 2024; 18:1724-1732. [PMID: 38157420 PMCID: PMC10795473 DOI: 10.1021/acsnano.3c10924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Visualizing the optical response of individual molecules is a long-standing goal in catalysis, molecular nanotechnology, and biotechnology. The molecular response is dominated not only by the electronic states in their isolated environment but also by neighboring molecules and the substrate. Information about the transfer of energy and charge in real environments is essential for the design of the desired molecular functions. However, visualizing these factors with spatial resolution beyond the molecular scale has been challenging. Here, by combining photoinduced force microscopy and Kelvin probe force microscopy, we have mapped the photoinduced force in a pentacene bilayer with a spatial resolution of 0.6 nm and observed its "multipole excitation". We identified the excitation as the result of energy and charge transfer between the molecules and to the Ag substrate. These findings can be achieved only by combining microscopy techniques to simultaneously visualize the optical response of the molecules and the charge transfer between the neighboring environments. Our approach and findings provide insights into designing molecular functions by considering the optical response at each step of layering molecules.
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Affiliation(s)
- Tatsuya Yamamoto
- Department
of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hidemasa Yamane
- Department
of Physics, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
- Osaka
Research Institute of Industrial Science and Technology, Izumi, Osaka 594-1157, Japan
| | - Nobuhiko Yokoshi
- Department
of Physics and Electronics, Osaka Metropolitan
University, Sakai, Osaka 599-8531, Japan
| | - Hisaki Oka
- Department
of Physics, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan
| | - Hajime Ishihara
- Department
of Materials Engineering Science, Osaka
University, Toyonaka, Osaka 560-8531, Japan
| | - Yasuhiro Sugawara
- Department
of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
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4
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Yamane H, Yokoshi N, Ishihara H, Oka H. Enantioselective optical trapping of single chiral molecules in the superchiral field vicinity of metal nanostructures. Opt Express 2023; 31:13708-13723. [PMID: 37157253 DOI: 10.1364/oe.482207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
In this study, we theoretically analyzed the optical force acting on single chiral molecules in the plasmon field induced by metallic nanostructures. Using the extended discrete dipole approximation, we quantitatively examined the optical response of single chiral molecules in the localized plasmon by numerically analyzing the internal polarization structure of the molecules obtained from quantum chemical calculations, without phenomenological treatment. We evaluated the chiral gradient force due to the optical chirality gradient of the superchiral field near the metallic nanostructures for chiral molecules. Our calculation method can be used to evaluate the molecular-orientation dependence and rotational torque by considering the chiral spatial structure inside the molecules. We theoretically showed that the superchiral field induced by chiral plasmonic nanostructures can be used to selectively optically capture the enantiomers of a single chiral molecule.
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5
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Liu YE, Shi X, Yokoyama T, Inoue S, Sunaba Y, Oshikiri T, Sun Q, Tamura M, Ishihara H, Sasaki K, Misawa H. Quantum-Coherence-Enhanced Hot-Electron Injection under Modal Strong Coupling. ACS Nano 2023; 17:8315-8323. [PMID: 37083316 PMCID: PMC10173689 DOI: 10.1021/acsnano.2c12670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Modal strong coupling between localized surface plasmon resonance and a Fabry-Pérot nanocavity has been studied to improve the quantum efficiency of artificial photosynthesis. In this research, we employed Au nanodisk/titanium dioxide/Au film modal strong coupling structures to investigate the mechanism of quantum efficiency enhancement. We found that the quantum coherence within the structures enhances the apparent quantum efficiency of the hot-electron injection from the Au nanodisks to the titanium dioxide layer. Under near-field mapping using photoemission electron microscopy, the existence of quantum coherence was directly observed. Furthermore, the coherence area was quantitatively evaluated by analyzing the relationship between the splitting energy and the particle number density of the Au nanodisks. This quantum-coherence-enhanced hot-electron injection is supported by our theoretical model. Based on these results, applying quantum coherence to photochemical reaction systems is expected to effectively enhance reaction efficiencies.
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Affiliation(s)
- Yen-En Liu
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Xu Shi
- Creative Research Institution, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Tomohiro Yokoyama
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Soshun Inoue
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Yuji Sunaba
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Tomoya Oshikiri
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
- Research Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai, Miyagi 980-8577, Japan
| | - Quan Sun
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Mamoru Tamura
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Research Institute for Light-Induced Acceleration System, Osaka Metropolitan University, Sakai, Osaka 599-8570, Japan
| | - Hajime Ishihara
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Center for Quantum Information and Quantum Biology, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Keiji Sasaki
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
| | - Hiroaki Misawa
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
- Center for Emergent Functional Matter Science, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
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6
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Yamane H, Yokoshi N, Oka H, Sugawara Y, Ishihara H. Near-field circular dichroism of single molecules. Opt Express 2023; 31:3415-3426. [PMID: 36785335 DOI: 10.1364/oe.476011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/28/2022] [Indexed: 06/18/2023]
Abstract
Near-field images of molecules provide information about their excited orbitals, giving rise to photonic and chemical functions. Such information is crucial to the elucidation of the full potential of molecules as components in functional materials and devices at the nanoscale. However, direct imaging inside single molecules with a complex structure in the near-field is still challenging because it requires in situ observation at a higher resolution than the molecular scale. Here, using a proven theoretical method that has demonstrated sub-nanoscale resolution based on photoinduced force microscopy (PiFM) experiment [Nat. Commun.12, 3865 (2021)10.1038/s41467-021-24136-2], we propose an approach to obtaining the near-field imaging with spatial patterns of electronic transitions of single molecules. We use an extended discrete dipole approximation method that incorporates microscopic nonlocal optical response of molecules and demonstrate that PiFM can visualize circular-dichroism signal patterns at sub-nanometer scale for both optically allowed and forbidden transitions. The result will open the possibility for the direct observation of complex spatial patterns of electronic transitions in a single molecule, providing insight into the optical function of single molecules and helping realize new functional materials and devices.
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7
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Tao Y, Yokoyama T, Ishihara H. Rotational dynamics of indirect optical bound particle assembly under a single tightly focused laser. Opt Express 2023; 31:3804-3820. [PMID: 36785364 DOI: 10.1364/oe.479643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/28/2022] [Indexed: 06/18/2023]
Abstract
The optical binding of many particles has the potential to achieve the wide-area formation of a "crystal" of small materials. Unlike conventional optical binding, where the entire assembly of targeted particles is directly irradiated with light, if remote particles can be indirectly manipulated using a single trapped particle through optical binding, the degrees of freedom to create ordered structures can be enhanced. In this study, we theoretically investigate the dynamics of the assembly of gold nanoparticles that are manipulated using a single trapped particle by a focused laser. We demonstrate the rotational motion of particles through an indirect optical force and analyze it in terms of spin-orbit coupling and the angular momentum generation of light. The rotational direction of bound particles can be switched by the numerical aperture. These results pave the way for creating and manipulating ordered structures with a wide area and controlling local properties using scanning laser beams.
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Morita T, Kojima T, Matsuo S, Matsukiyo S, Isayama S, Yamazaki R, Tanaka SJ, Aihara K, Sato Y, Shiota J, Pan Y, Tomita K, Takezaki T, Kuramitsu Y, Sakai K, Egashira S, Ishihara H, Kuramoto O, Matsumoto Y, Maeda K, Sakawa Y. Detection of current-sheet and bipolar ion flows in a self-generated antiparallel magnetic field of laser-produced plasmas for magnetic reconnection research. Phys Rev E 2022; 106:055207. [PMID: 36559487 DOI: 10.1103/physreve.106.055207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/23/2022] [Indexed: 06/17/2023]
Abstract
Magnetic reconnection in laser-produced magnetized plasma is investigated by using optical diagnostics. The magnetic field is generated via the Biermann battery effect, and the inversely directed magnetic field lines interact with each other. It is shown by self-emission measurement that two colliding plasmas stagnate on a midplane, forming two planar dense regions, and that they interact later in time. Laser Thomson scattering spectra are distorted in the direction of the self-generated magnetic field, indicating asymmetric ion velocity distribution and plasma acceleration. In addition, the spectra perpendicular to the magnetic field show different peak intensity, suggesting an electron current formation. These results are interpreted as magnetic field dissipation, reconnection, and outflow acceleration. Two-directional laser Thomson scattering is, as discussed here, a powerful tool for the investigation of microphysics in the reconnection region.
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Affiliation(s)
- T Morita
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - T Kojima
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S Matsuo
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - S Matsukiyo
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
- International Research Center for Space and Planetary Environmental Science, Kyushu University, Motooka, Nishi-Ku, Fukuoka 819-0395, Japan
| | - S Isayama
- Faculty of Engineering Sciences, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - R Yamazaki
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S J Tanaka
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - K Aihara
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Sato
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - J Shiota
- Department of Physical Sciences, Aoyama Gakuin University, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 252-5258, Japan
| | - Y Pan
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1, Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - K Tomita
- Faculty of Engineering, Hokkaido University, Kita 13 Nishi 8, Kita-ku, Sapporo 060-8628, Japan
| | - T Takezaki
- Faculty of Engineering, University of Toyama, Gofuku 3190, Toyama-shi, Toyama 930-8555, Japan
| | - Y Kuramitsu
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - K Sakai
- Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - S Egashira
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - H Ishihara
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - O Kuramoto
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - Y Matsumoto
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - K Maeda
- Graduate School of Science, Osaka University, 1-1 Machikane-yama, Toyonaka, Osaka 560-0043, Japan
| | - Y Sakawa
- Institute of Laser Engineering, Osaka University, 2-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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Abstract
When a chiral nanoparticle is optically trapped using a circularly polarized laser beam, a circular polarization (CP)–dependent gradient force can be induced on the particle. We investigated the CP-dependent gradient force exerted on three-dimensional chiral nanoparticles. The experimental results showed that the gradient force depended on the handedness of the CP of the trapping light and the particle chirality. The analysis revealed that the spectral features of the CP handedness–dependent gradient force are influenced not only by the real part of the refractive index but also by the electromagnetic field perturbed by the chiral particle resonant with the incident light. This is in sharp contrast to the well-known behavior of the gradient force, which is governed by the real part of the refractive index. The extended aspect of the chiral optical force obtained here can provide novel methodologies on chirality sensing, manipulation, separation, enantioselective biological reactions, and other fields.
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Affiliation(s)
- Junsuke Yamanishi
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Hyo-Yong Ahn
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- Center for Novel Science Initiatives, National Institutes of Natural Sciences, 4-3-13 Toranomon, Minato-ku, Tokyo 105-0001, Japan
| | - Hidemasa Yamane
- Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Physics, Kitasato University, 1-15-1 Kitasato, Minami-ku, Sagamihara, Kanagawa 252-0373, Japan
| | - Shun Hashiyada
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Department of Electrical, Electronic, and Communication Engineering, Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Materials Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan
- Center for Quantum Information and Quantum Biology, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hiromi Okamoto
- Institute for Molecular Science, National Institutes of Natural Sciences, 38 Nishigonaka, Myodaiji, Okazaki, Aichi 444-8585, Japan
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Wada T, Ishihara H. Optical force spectroscopy for measurement of nonlinear optical coefficient of single nanoparticles through optical manipulation. Opt Express 2022; 30:17490-17516. [PMID: 36221571 DOI: 10.1364/oe.456122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/11/2022] [Indexed: 06/16/2023]
Abstract
Compared with manipulation of microparticles with optical tweezers and control of atomic motion with atom cooling, the manipulation of nanoscale objects is challenging because light exerts a significantly weaker force on nanoparticles than on microparticles. The complex interaction of nanoparticles with the environmental solvent media adds to this challenge. In recent years, optical manipulation using electronic resonance effects has garnered interest because it has enabled researchers to enhance the force as well as sort nanoparticles by their quantum mechanical properties. Especially, a precise observation of the motion of nanoparticles irradiated by resonant light enables the precise measurement of the material parameters of single nanoparticles. Conventional spectroscopic methods of measurement are based on indirect processes involving energy dissipation, such as thermal dissipation and light scattering. This study proposes a theoretical method to measure the nonlinear optical constant based on the optical force. The nonlinear susceptibility of single nanoparticles can be directly measured by evaluating the transportation distance of particles through pure momentum exchange. We extrapolate an experimentally verified method of measuring the linear absorption coefficient of single nanoparticles by the optical force to determine the nonlinear absorption coefficient. To this end, we simulate the third-order nonlinear susceptibility of the target particles with the kinetic analysis of nanoparticles at the solid-liquid interface incorporating the Brownian motion. The results show that optical manipulation can be used as nonlinear optical spectroscopy utilizing direct exchange of momentum. To the best of our knowledge, this is currently the only way to measure the nonlinear coefficient of individual single nanoparticles.
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Nishimoto T, Oka F, Okazaki K, Ishihara H. Relationship Between Cerebral Hyperperfusion Syndrome and the Immediate Change of Cerebral Blood Flow After Carotid Artery Stenting Evaluated by Single-Photon Emission Computed Tomography. J Vasc Surg 2022. [DOI: 10.1016/j.jvs.2021.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Horai T, Eguchi H, Iida T, Ishihara H. Formulation of resonant optical force based on the microscopic structure of chiral molecules. Opt Express 2021; 29:38824-38840. [PMID: 34808926 DOI: 10.1364/oe.440352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Accepted: 10/28/2021] [Indexed: 06/13/2023]
Abstract
Optical manipulation, exemplified by Ashkin's optical tweezers, is a promising technique in the fields of bioscience and chemistry, as it enables the non-destructive and non-contact selective transport or manipulation of small particles. To realize the separation of chiral molecules, several researchers have reported on the use of light and discussed feasibility of selection. Although the separation of micrometer-sized chiral molecules has been experimentally demonstrated, the separation of nanometer-sized chiral molecules, which are considerably smaller than the wavelength of light, remains challenging. Therefore, we formulated an optical force under electronic resonance to enhance the optical force and enable selective manipulation. In particular, we incorporated the microscopic structures of molecular dipoles into the nonlocal optical response theory. The analytical expression of optical force could clarify the mechanism of selection exertion of the resonant optical force on chiral molecules. Furthermore, we quantitatively evaluated the light intensity and light exposure time required to separate a single molecule in a solvent. The results can facilitate the design of future schemes for the selective optical manipulation of chiral molecules.
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13
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Imada H, Imai-Imada M, Miwa K, Yamane H, Iwasa T, Tanaka Y, Toriumi N, Kimura K, Yokoshi N, Muranaka A, Uchiyama M, Taketsugu T, Kato YK, Ishihara H, Kim Y. Single-molecule laser nanospectroscopy with micro-electron volt energy resolution. Science 2021; 373:95-98. [PMID: 34210883 DOI: 10.1126/science.abg8790] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 05/22/2021] [Indexed: 12/16/2022]
Abstract
Ways to characterize and control excited states at the single-molecule and atomic levels are needed to exploit excitation-triggered energy-conversion processes. Here, we present a single-molecule spectroscopic method with micro-electron volt energy and submolecular-spatial resolution using laser driving of nanocavity plasmons to induce molecular luminescence in scanning tunneling microscopy. This tunable and monochromatic nanoprobe allows state-selective characterization of the energy levels and linewidths of individual electronic and vibrational quantum states of a single molecule. Moreover, we demonstrate that the energy levels of the states can be finely tuned by using the Stark effect and plasmon-exciton coupling in the tunneling junction. Our technique and findings open a route to the creation of designed energy-converting functions by using tuned energy levels of molecular systems.
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Affiliation(s)
- Hiroshi Imada
- Surface and Interface Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan. .,PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Miyabi Imai-Imada
- Surface and Interface Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Kuniyuki Miwa
- Surface and Interface Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan.,Institute for Molecular Science, Myodaiji, Okazaki, Aichi 444-8585, Japan
| | - Hidemasa Yamane
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Takeshi Iwasa
- PRESTO, Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan.,Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 060-0810, Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Advanced Elements Chemistry Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Naoyuki Toriumi
- Advanced Elements Chemistry Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Kensuke Kimura
- Surface and Interface Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Nobuhiko Yokoshi
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Atsuya Muranaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Advanced Elements Chemistry Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.,Advanced Elements Chemistry Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Tetsuya Taketsugu
- Department of Chemistry, Faculty of Science, Hokkaido University, Sapporo, Hokkaido 060-0810, Japan.,Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo 060-0810, Japan
| | - Yuichiro K Kato
- Nanoscale Quantum Photonics Laboratory, RIKEN, Wako, Saitama 351-0198, Japan.,Quantum Optoelectronics Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.,Department of Materials Engineering Science, Osaka University, 1-3 Machikaneyama-cho, Toyonaka, Osaka 560-8531, Japan.,Center for Quantum Information and Quantum Biology, Osaka University 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
| | - Yousoo Kim
- Surface and Interface Science Laboratory, RIKEN, Wako, Saitama 351-0198, Japan.
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14
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Yamanishi J, Yamane H, Naitoh Y, Li YJ, Yokoshi N, Kameyama T, Koyama S, Torimoto T, Ishihara H, Sugawara Y. Optical force mapping at the single-nanometre scale. Nat Commun 2021; 12:3865. [PMID: 34162845 PMCID: PMC8222358 DOI: 10.1038/s41467-021-24136-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 05/17/2021] [Indexed: 12/02/2022] Open
Abstract
Three-dimensional (3D) information of the optical response in the nanometre scale is important in the field of nanophotonics science. Using photoinduced force microscopy (PiFM), we can visualize the nano-scale optical field using the optical gradient force between the tip and sample. Here, we demonstrate 3D photoinduced force field visualization around a quantum dot in the single-nanometre spatial resolution with heterodyne frequency modulation technique, using which, the effect of the photothermal expansion of the tip and sample in the ultra-high vacuum condition can be avoided. The obtained 3D mapping shows the spatially localized photoinduced interaction potential and force field vectors in the single nano-scale for composite quantum dots with photocatalytic activity. Furthermore, the spatial resolution of PiFM imaging achieved is ~0.7 nm. The single-nanometer scale photoinduced field visualization is crucial for applications such as photo catalysts, optical functional devices, and optical manipulation. Direct visualisation of 3D vector distributions of photoinduced fields can shed light on the optical and mechanical behaviour of different materials. Here, the authors demonstrate such visualisation using photoinduced force microscopy by observing the optical gradient force at the nanometer scale.
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Affiliation(s)
- Junsuke Yamanishi
- Department of Applied Physics, Osaka University, Suita, Osaka, Japan.,Institute for Molecular Science, National Institutes of Natural Sciences, Okazaki, Aichi, Japan
| | - Hidemasa Yamane
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka, Japan.,Department of Physics, Kitasato University, Sagamihara, Kanagawa, Japan
| | - Yoshitaka Naitoh
- Department of Applied Physics, Osaka University, Suita, Osaka, Japan
| | - Yan Jun Li
- Department of Applied Physics, Osaka University, Suita, Osaka, Japan
| | - Nobuhiko Yokoshi
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka, Japan
| | - Tatsuya Kameyama
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Seiya Koyama
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Tsukasa Torimoto
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University, Chikusa-ku, Nagoya, Aichi, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka, Japan. .,Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka, Japan. .,Center for Quantum Information and Quantum Biology, Osaka University, Suita, Osaka, Japan.
| | - Yasuhiro Sugawara
- Department of Applied Physics, Osaka University, Suita, Osaka, Japan.
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15
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Fujiwara H, Yamauchi K, Wada T, Ishihara H, Sasaki K. Optical selection and sorting of nanoparticles according to quantum mechanical properties. Sci Adv 2021; 7:7/3/eabd9551. [PMID: 33523883 PMCID: PMC7806212 DOI: 10.1126/sciadv.abd9551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
Optical trapping and manipulation have been widely applied to biological systems, and their cutting-edge techniques are creating current trends in nanomaterial sciences. The resonant absorption of materials induces not only the energy transfer from photons to quantum mechanical motion of electrons but also the momentum transfer between them, resulting in dissipative optical forces that drive the macroscopic mechanical motion of the particles. However, optical manipulation, according to the quantum mechanical properties of individual nanoparticles, is still challenging. Here, we demonstrate selective transportation of nanodiamonds with and without nitrogen-vacancy centers by balancing resonant absorption and scattering forces induced by two different-colored lasers counterpropagating along a nanofiber. Furthermore, we propose a methodology for precisely determining the absorption cross sections for single nanoparticles by monitoring the optically driven motion, which is called as "optical force spectroscopy." This method provides a novel direction in optical manipulation technology toward development of functional nanomaterials and quantum devices.
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Affiliation(s)
- Hideki Fujiwara
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
- Department of Electronics and Information Engineering, Hokkai-Gakuen University, Sapporo, Hokkaido 064-0926, Japan
| | - Kyosuke Yamauchi
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan
| | - Takudo Wada
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Keiji Sasaki
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0020, Japan.
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16
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Ogawa Y, Naganuma A, Kudou T, Hoshino T, Ishii K, Kishi A, Shimoda C, Masuda T, Ogawa T, Ishihara H. Relationship between sarcopenia and length of hospital stay in patients with ulcerative colitis. Clin Nutr ESPEN 2020. [DOI: 10.1016/j.clnesp.2020.09.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Yamane H, Yamanishi J, Yokoshi N, Sugawara Y, Ishihara H. Theoretical analysis of optically selective imaging in photoinduced force microscopy. Opt Express 2020; 28:34787-34803. [PMID: 33182939 DOI: 10.1364/oe.409986] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/22/2020] [Indexed: 06/11/2023]
Abstract
We present a theoretical study on the measurement of photoinduced force microscopy (PiFM) for composite molecular systems. Using discrete dipole approximation, we calculate the self-consistent response electric field of the entire system, including the PiFM tip, substrate, and composite molecules. We demonstrate a higher sensitivity for PiFM measurement on resonant molecules than the previously obtained tip-sample distance dependency, z-4, owing to multifold enhancement of the localized electric field induced at the tip-substrate nanogap and molecular polarization. The enhanced localized electric field in PiFM allows high-resolution observation of forbidden optical electronic transitions in dimer molecules. We investigate the wavelength dependence of PiFM for dimer molecules, obtaining images at incident light wavelengths corresponding to the allowed and forbidden transitions. We reveal that these PiFM images drastically change with the frequency-dependent spatial structures of the localized electric field vectors and resolve different types of nanoparticles beyond the resolution for the optically allowed transitions. This study demonstrates that PiFM yields multifaceted information based on microscopic interactions between nanomaterials and light.
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18
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Misawa R, Orlov AM, Orlova SY, Gordeev II, Ishihara H, Hamatsu T, Ueda Y, Fujiwara K, Endo H, Kai Y. Bathyraja (Arctoraja) sexoculata sp. nov., a new softnose skate (Rajiformes: Arhynchobatidae) from Simushir Island, Kuril Islands (western North Pacific), with special reference to geographic variations in Bathyraja (Arctoraja) smirnovi. Zootaxa 2020; 4861:zootaxa.4861.4.3. [PMID: 33311206 DOI: 10.11646/zootaxa.4861.4.3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Indexed: 11/04/2022]
Abstract
A new species of softnose skate (Arhynchobatidae), Bathyraja sexoculata Misawa, Orlov, Orlova, Gordeev and Ishihara is described on the basis of five specimens collected from off the east coast of Simushir Island, Kuril Islands, located in the western North Pacific. The specimens conformed to the genus Bathyraja by having the anteriormost pectoral-fin skeleton almost reaching the snout tip, and a slender unsegmented rostral cartilage. Within Bathyraja, the new species belongs to the subgenus Arctoraja (currently with four valid species) due to the relatively short tail (79-86% of disc width), high count of predorsal caudal vertebrae (more than 86), and large strong nuchal and scapular thorns. It is most similar to Bathyraja (Arctoraja) smirnovi, distributed in the Seas of Japan and Okhotsk, in having tail thorns not extending to the nuchal area, median thorns discontinuous from the nape to the tail, and no mid-dorsal thorns. However, B. sexoculata can be distinguished from B. smirnovi by the following characters: three pairs of white blotches on the dorsal disc surface (vs. blotches absent, or a pair of white or dark blotches in B. smirnovi), dark blotch around cloaca, dark bands along mid ventral line of tail (vs. dark blotch and band usually absent ventral disc surface in B. smirnovi), 86-93 predorsal caudal vertebrae (vs. 80-87 in B. smirnovi), and a unique mitochondrial DNA cytochrome c oxidase subunit I sequence. Proportional measurements, including disc width, disc length, head length, preoral length, prenarial length, internarial distance, eye diameter, and tail length, also differ between the two species. For the referential purpose, geographical variations of B. smirnovi distributed in the Seas of Japan and Okhotsk are analyzed and clarified based on morphological and genetic data. Significant morphological and genetic differences were found between local populations in the Seas of Japan and Okhotsk.
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Affiliation(s)
- Ryo Misawa
- Tohoku National Fisheries Research Institute, Japan Fisheries Research and Education Agency, National Research and Development Agency, 25-259 Shimomekurakubo, Same, Hachinohe, Aomori 031-0841, Japan.
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19
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Yoshida K, Takagi T, Kondo T, Iizuka J, Kobayashi H, Fukuda H, Ishihara H, Okumi M, Ishida H, Tanabe K. Usefulness of robot-assisted laparoscopic partial nephrectomy using trifecta criteria. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33923-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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20
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Toshio T, Morita S, Toguchi M, Ogawa Y, Yoshida K, Iizuka J, Kondo T, Fukuda H, Ishihara H, Nagashima Y, Tanabe K. Detection of a peritumoral pseudocapsule in patients with renal cell carcinoma undergoing robot-assisted partial nephrectomy, using enhanced CT. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33082-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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21
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Hoshina M, Yokoshi N, Ishihara H. Nanoscale rotational optical manipulation. Opt Express 2020; 28:14980-14994. [PMID: 32403530 DOI: 10.1364/oe.393379] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
Light has momentum, and hence, it can move small particles. The optical tweezer, invented by Ashkin et al. [Opt. Lett. 11, 288 (1986)] is a representative application. It traps and manipulates microparticles and has led to great successes in the biosciences. Currently, optical manipulation of "nano-objects" is attracting growing attention, and new techniques have been proposed and realized. For flexible manipulation, push-pull switching [Phys. Rev. Lett. 109, 087402 (2012)] and super-resolution trapping by using the electronic resonance of nano-objects have been proposed [ACS Photonics 5, 318 (2017)]. However, regarding the "rotational operation" of nano-objects, the full potential of optical manipulation remains unknown. This study proposes mechanisms to realize rotation and direction switching of nano-objects in macroscopic and nanoscopic areas. By controlling the balance between the dissipative force and the gradient force by using optical nonlinearity, the direction of the macroscopic rotational motion of nano-objects is switched. Further, conversion between the spin angular momentum and orbital angular momentum by light scattering through localized surface plasmon resonance in metallic nano-complexes induces optical force for rotational motion in the nanoscale area. This study pieces out fundamental operations of the nanoscale optical manipulation of nanoparticles.
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22
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Shoji T, Itoh K, Saitoh J, Kitamura N, Yoshii T, Murakoshi K, Yamada Y, Yokoyama T, Ishihara H, Tsuboi Y. Plasmonic Manipulation of DNA using a Combination of Optical and Thermophoretic Forces: Separation of Different-Sized DNA from Mixture Solution. Sci Rep 2020; 10:3349. [PMID: 32098985 PMCID: PMC7042363 DOI: 10.1038/s41598-020-60165-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 01/10/2020] [Indexed: 11/08/2022] Open
Abstract
We demonstrate the size-dependent separation and permanent immobilization of DNA on plasmonic substrates by means of plasmonic optical tweezers. We found that a gold nanopyramidal dimer array enhanced the optical force exerted on the DNA, leading to permanent immobilization of the DNA on the plasmonic substrate. The immobilization was realized by a combination of the plasmon-enhanced optical force and the thermophoretic force induced by a photothermal effect of the plasmons. In this study, we applied this phenomenon to the separation and fixation of size-different DNA. During plasmon excitation, DNA strands of different sizes became permanently immobilized on the plasmonic substrate forming micro-rings of DNA. The diameter of the ring was larger for longer DNA (in base pairs). When we used plasmonic optical tweezers to trap DNA of two different lengths dissolved in solution (φx DNA (5.4 kbp) and λ-DNA (48.5 kbp), or φx DNA and T4 DNA (166 kbp)), the DNA were immobilized, creating a double micro-ring pattern. The DNA were optically separated and immobilized in the double ring, with the shorter sized DNA and the larger one forming the smaller and larger rings, respectively. This phenomenon can be quantitatively explained as being due to a combination of the plasmon-enhanced optical force and the thermophoretic force. Our plasmonic optical tweezers open up a new avenue for the separation and immobilization of DNA, foreshadowing the emergence of optical separation and fixation of biomolecules such as proteins and other ncuelic acids.
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Affiliation(s)
- Tatsuya Shoji
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, 5558-8585, Japan
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, 5558-8585, Japan
| | - Kenta Itoh
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, 5558-8585, Japan
| | - Junki Saitoh
- Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
| | - Noboru Kitamura
- Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
| | - Takahiro Yoshii
- Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
| | - Kei Murakoshi
- Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo, Hokkaido, 060-0810, Japan
| | - Yuto Yamada
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Tomohiro Yokoyama
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
| | - Hajime Ishihara
- Division of Materials Physics, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka, 560-8531, Japan
- Department of Physics and Electronics, Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Nakaku, Sakai, Osaka, 599-8531, Japan
| | - Yasuyuki Tsuboi
- Division of Molecular Materials Science, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, 5558-8585, Japan.
- The OCU Advanced Research Institute for Natural Science and Technology (OCARINA), Osaka City University, 3-3-138 Sugimoto, Sumiyoshi, Osaka, 5558-8585, Japan.
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23
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Hata R, Yokoshi N, Ajiki H, Ishihara H. Up-conversion superfluorescence induced by abrupt truncation of coherent field and plasmonic nanocavity. J Chem Phys 2019; 151:224307. [PMID: 31837676 DOI: 10.1063/1.5128020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We theoretically propose a new method for generating up-converted coherent light from two-level systems (TLSs) coupled with a plasmonic nanocavity. The emission spectrum of a TLS excited by a strong laser exhibits a triplet structure called the Mollow triplet. If the lower Mollow sideband is tuned to the cavity mode energy, population inversion of a TLS occurs. When the driving laser is abruptly truncated under this condition, an up-converted photon is emitted from the TLSs. We also predict the up-converted superfluorescence from an ensemble of TLSs as a correlation effect among the excited states of the TLSs.
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Affiliation(s)
- Ryosuke Hata
- Department of Physics and Electronics, Osaka Prefecture University, Sakai 599-8531, Japan
| | - Nobuhiko Yokoshi
- Department of Physics and Electronics, Osaka Prefecture University, Sakai 599-8531, Japan
| | - Hiroshi Ajiki
- Department of Science and Engineering, Tokyo Denki University, Saitama 350-0394, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, Sakai 599-8531, Japan
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24
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Naganuma A, Tateyama Y, Taira T, Shibasaki E, Murakami T, Masuda T, Uehara S, Yasuoka H, Hoshino T, Kudo T, Ishihara H, Ogawa Y, Shimizu T, Ishii K, Inagawa M, Tanaka T, Ogawa T, Oishi H. SUN-PO265: Usefulness of Nutrition Management by Percutaneous Trans-Esophageal Gastro-Tubing. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32895-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Ogawa Y, Naganuma A, Inagawa M, Kimura M, Kanai M, Yoshida T, Kaneda T, Morohoshi A, Shimoda C, Sakamoto K, Manome M, Noguchi K, Tanaka T, Ogawa T, Ishihara H. MON-PO629: Indications for Percutaneous Endoscopic Gastrostomy in Patients with Acute Cerebral Infarction. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32462-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Kinoshita T, Matsuda T, Takahashi T, Ichimiya M, Ashida M, Furukawa Y, Nakayama M, Ishihara H. Synergetic Enhancement of Light-Matter Interaction by Nonlocality and Band Degeneracy in ZnO Thin Films. Phys Rev Lett 2019; 122:157401. [PMID: 31050541 DOI: 10.1103/physrevlett.122.157401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 03/08/2019] [Indexed: 06/09/2023]
Abstract
This study aims to reveal the full potential of ZnO as an ultrafast photofunctional material. Based on nonlocal response theory to incorporate the spatially inhomogeneous quality of the samples coupled with experimental observations of linear and nonlinear optical responses, we establish the ultrafast radiative decay of excitons in ZnO thin films that reaches the speed of excitonic dephasing at room temperature in typical semiconductors at a couple tens of femtoseconds. The consistency between the observed delay-time dependence of the transient-grating signals and the theoretical prediction reveals that the ultrafast radiative decay is due to the synergetic effects of the giant light-exciton interaction volume and the radiative coupling between multicomponent excitons.
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Affiliation(s)
- Takashi Kinoshita
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Takuya Matsuda
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Takuya Takahashi
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Masayoshi Ichimiya
- Department of Electronic Systems Engineering, The University of Shiga Prefecture, Hikone, Shiga 522-8533, Japan
| | - Masaaki Ashida
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Yoshiaki Furukawa
- Department of Applied Physics, Osaka City University, Osaka, Osaka 558-8585, Japan
| | - Masaaki Nakayama
- Department of Applied Physics, Osaka City University, Osaka, Osaka 558-8585, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
- Department of Materials Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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Ogawa Y, Naganuma A, Inagawa M, Iida T, Kimura M, Kumakura A, Yoshida T, Yamai N, Moroboshi A, Ueda R, Kawahara Y, Itou N, Shiozawa Y, Koyama Y, Funakoshi H, Manome M, Noguchi K, Kanai M, Ishiguro K, Ogawa T, Ishihara H. Effect of video endoscopic examination of swallowing function early after admission on length of hospital stay for patients with acute cerebral infarction: A retrospective study. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Uehara D, Naganuma A, Hoshino T, Horiguchi S, Murakami T, Kudo T, Ishihara H, Ogawa Y, Inagawa M, Tanaka T, Ogawa T, Sohara N, Hatanaka T, Sato K, Kakizaki S. Evaluation of liver fibrosis using bioelectrical impedance analysis and serum lipid profiles in patients with hepatitis c treated with direct acting antivirals. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Maniwa S, Maeki N, Ishihara H, Tadenuma T, Sakai Y. Trends in musculoskeletal surgery and postoperative rehabilitation in patients with rheumatoid arthritis. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ogawa Y, Naganuma A, Inagawa M, Iida T, Kimura M, Kumakura A, Yoshida T, Nakamura H, Moroboshi A, Ueda R, Kawahara Y, Sekine S, Shiozawa Y, Koyama Y, Funakoshi H, Tanaka H, Kanai M, Ishiguro K, Ogawa T, Ishihara H. MON-P026: Early Evaluation of the Swallowing Function Can Shorten Hospitalisation Period for Patients with Acute Cerebral infarction: A Historical Control Study. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)31057-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
We theoretically propose a unifying expression for synchronization dynamics between two-level constituents. Although synchronization phenomena require some substantial mediators, the distinct repercussions of their propagation delays remain obscure, especially in open systems. Our scheme directly incorporates the details of the constituents and mediators in an arbitrary environment. As one example, we demonstrate the synchronization dynamics of optical emitters on a dielectric microsphere. We reveal that the whispering gallery modes (WGMs) bridge the well-separated emitters and accelerate the synchronized fluorescence, known as superfluorescence. The emitters are found to overcome the significant and nonuniform retardation, and to build up their pronounced coherence by the WGMs, striking a balance between the roles of resonator and intermediary. Our work directly illustrates the dynamical aspects of many-body synchronizations and contributes to the exploration of research paradigms that consider designed open systems.
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Affiliation(s)
- Nobuhiko Yokoshi
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Kazuki Odagiri
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Akira Ishikawa
- Department of Science for Advanced Materials, University of Yamanashi, Kofu 400-8511, Japan
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
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Kudo T, Ishihara H, Masuhara H. Resonance optical trapping of individual dye-doped polystyrene particles with blue- and red-detuned lasers. Opt Express 2017; 25:4655-4664. [PMID: 28380736 DOI: 10.1364/oe.25.004655] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We demonstrate resonance optical trapping of individual dye-doped polystyrene particles with blue- and red-detuned lasers whose energy are higher and lower compared to electronic transition of the dye molecules, respectively. Through the measurement on how long individual particles are trapped at the focus, we here show that immobilization time of dye-doped particles becomes longer than that of bare ones. We directly confirm that the immobilization time of dye-doped particles trapped by the blue-detuned laser becomes longer than that by the red-detuned one. These findings are well interpreted by our previous theoretical proposal based on nonlinear optical response under intense laser field. It is discussed that the present result is an important step toward efficient and selective manipulation of molecules, quantum dots, nanoparticles, and various nanomaterials based on their quantum mechanical properties.
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Yamashita J, Kobayashi I, Tatematsu K, Sezutsu H, Noda K, Ishihara H. Sandwich ELISA Using a Mouse/Human Chimeric CSLEX-1 Antibody. Clin Chem 2016; 62:1516-1523. [PMID: 27591290 DOI: 10.1373/clinchem.2016.260968] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/21/2016] [Indexed: 11/06/2022]
Abstract
BACKGROUND An assay using a mouse antisialyl Lewis X (sLeX) antibody (CSLEX-1) is used clinically for screening and monitoring patients with breast cancer in Japan. However, the IgM isoform of CSLEX-1 is not preferred for the assay because the bulkiness of IgM generally causes poor accessibility to the antigen. To solve this problem, we developed an antisLeX mouse/human chimeric IgG antibody, CH-CSLEX-1, using transgenic silkworms. The performance of a homologous sandwich ELISA of CH-CSLEX1 was then evaluated. METHODS To generate CH-CSLEX-1, we used a GAL4/UAS binary gene expression system in transgenic silkworms. The reactivities of CSLEX-1 and CH-CSLEX-1 were determined in a Biacore analysis. To confirm antigen specificity, 3 antigens [sLeX, sLeA, and Lewis Y (LeY)] were used. RESULTS CH-CSLEX-1 formed correctly as an IgG class of immunoglobulin molecule with an isoelectric point close to the predicted value. The best combination for capturing and probing in a sandwich ELISA was determined as a homologous combination of CH-CSLEX-1. The CH-CSLEX-1 assay specifically detected sLeX, but not sLeA and LeY. A correlation analysis with 107 human samples showed good concordance between the conventional CSLEX-1 assay (homologous sandwich ELISA using CSLEX-1) and the CH-CSLEX-1 assay (r = 0.98). Moreover, the CH-CSLEX-1 assay was not affected by either human antimouse IgG antibodies (HAMA IgG) or HAMA IgM. CONCLUSIONS The mouse/human chimeric antibody CH-CSLEX-1 allowed the establishment of a highly specific sandwich ELISA for sLeX that was not affected by HAMA.
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Affiliation(s)
- J Yamashita
- R&D Department, Nittobo Medical Co., Ltd., Koriyama, Japan
| | - I Kobayashi
- Transgenic Silkworm Research Unit, National Institute of Agrobiological Sciences, Ibaraki, Japan
| | - K Tatematsu
- Transgenic Silkworm Research Unit, National Institute of Agrobiological Sciences, Ibaraki, Japan
| | - H Sezutsu
- Transgenic Silkworm Research Unit, National Institute of Agrobiological Sciences, Ibaraki, Japan
| | - K Noda
- R&D Department, Nittobo Medical Co., Ltd., Koriyama, Japan
| | - H Ishihara
- R&D Department, Nittobo Medical Co., Ltd., Koriyama, Japan;
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Nagayama T, Ishihara H, Tomori H, Nakamura T. Verification of throwing operation by a manipulator with variable viscoelastic joints with straight-fiber-type artificial muscles and magnetorheological brakes. Adv Robot 2016. [DOI: 10.1080/01691864.2016.1217272] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Sato N, Wakabayashi M, Lee J, Lim B, Ueno NT, Ishihara H. Abstract P5-02-06: Predicting the response of molecular targeting agents in triple-negative breast cancer cell lines by kinase activities. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p5-02-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction
Mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K)-AKT pathways are two major hyper-activated cascades in triple-negative breast cancer (TNBC) that critically regulate cancer progression by enhancing cell survival, proliferation, metastasis, EMT, cancer stem cell regulate, and transformation. While many therapeutic agents targeting kinases in these pathways are being developed, the development of predictor of response for such agents are critical to successfully translate them into the clinic. Genomic analysis (amplification, deletion of mutation) is one of the prediction methods. However, these technologies do not always reflect the intrinsic functionalities/activities of the kinase molecules. Therefore, we hypothesized that kinase activity predicts the response to the targeted therapy in TNBC.
Materials and methods
Seventeen TNBC cell lines were used in this study. To analyze cell growth inhibition, cells were incubated for 72 h with various concentrations of trametinib or wortmannin, then processed for sulforhodamine B (SRB) staining assay. To measure MEK or PI3K enzymatic activity, TNBC cell lines were lysed and immunoprecipitated with magnetic beads conjugated with MEK antibody or with PI3K p110α antibody. Kinase reaction buffer including respective substrate and ATP was added to the immunoprecipitates and incubated for 120 minutes at 37 °C. Resultant ADP was quantified by HPLC and determined MEK and PI3K activities. Protein mass of MEK, PI3K, phospho-MEK and phospho-PI3K were determined by Western Blot analysis. Total protein amount was measured by A280. Lactate dehydrogenase (LDH) activity was measured by N-assay L LDH Nittobo. Total protein and LDH were used to normalize MEK and PI3K activities for the further analysis.
Results
Seventeen TNBC cell lines were classified into 4 groups depending on pattern of inhibition to two inhibitors as follows; Wortmannin (PI3K inhibitor) sensitive group (W, 2/17), Trametinib (MEK inhibitor) sensitive group (T, 2/17), Both sensitive group (S, 5/17) and Resistant group (R, 8/17). We found that ratio of PI3K activity and MEK activity showed good agreement to the cell classification (PPV [Wortmannin]: 67 %, PPV [Trametinib]: 33 %, NPV: = 100 %). The other parameters; enzymatic activity of MEK or PI3K, protein mass of MEK, PI3K, phospho-MEK, or phospho-PI3K, ratios of the protein mass, and the phospho-protein did not show statistically significant agreement to the classification. Mutational status and enzymatic activities or cell classification had no correlation. Additionally, MEK activity correlated to downstream phospho-ERK expression level (R = 0.7309).
Conclusion
Our results show that relative activity of two relevant kinases in the signaling cascade could predict the cell lines that will not respond to molecular targeting agents against corresponding cascades. Our concept should be warranted in the clinical study with statistically sufficient number of patients.
Citation Format: Sato N, Wakabayashi M, Lee J, Lim B, Ueno NT, Ishihara H. Predicting the response of molecular targeting agents in triple-negative breast cancer cell lines by kinase activities. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P5-02-06.
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Affiliation(s)
- N Sato
- Nittobo Medical Co., Ltd., Koriyama Fukushima, Japan; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - M Wakabayashi
- Nittobo Medical Co., Ltd., Koriyama Fukushima, Japan; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - J Lee
- Nittobo Medical Co., Ltd., Koriyama Fukushima, Japan; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - B Lim
- Nittobo Medical Co., Ltd., Koriyama Fukushima, Japan; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - NT Ueno
- Nittobo Medical Co., Ltd., Koriyama Fukushima, Japan; The University of Texas MD Anderson Cancer Center, Houston, TX
| | - H Ishihara
- Nittobo Medical Co., Ltd., Koriyama Fukushima, Japan; The University of Texas MD Anderson Cancer Center, Houston, TX
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Shimoda M, Nishimukai A, Shibata N, Kikuchi W, Hutawatari H, Ishihara H, Miyoshi Y, Noguchi S. Abstract P2-08-27: Prediction of bone metastases of breast cancer using combined markers of bone metabolism and inflammation. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p2-08-27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction
Luminal breast cancer patients show a relatively favorable prognosis when treated with adjuvant hormonal therapy alone. However, some of these patients develop recurrence and they might derive benefit from adjuvant chemotherapy. Although several genomic profilings successfully developed to decide whether to administer adjuvant chemotherapy, clinically practical prediction methods of recurrence sites do not exist. Our previous study showed a possible prediction of bone metastases by using two serum markers; TRACP-5b as a marker of bone metabolism; likelihood of bone metastases, and CRP as a marker of inflammation; likelihood of distant recurrence. The incidence of bone metastases was significantly higher in high risk patients(+/+) than in the others(odds ratio: 10.9, P=0.040). In this study, we examined the potential of the two-marker prediction in the newly enrolled luminal patients.
Patients and methods
One hundred sixty luminal patients who underwent surgery were enrolled in this study. Their serum levels of TRACP-5b and CRP were measured in a blinded manner at the R & D laboratory of Nittobo Medical Co., Ltd. In the preliminary study, we identified that the median value of TRACP-5b in the premenopausal patients was lower than in the postmenopausal patients. We adjusted the value of TRACP-5b in the premenopausal patients and the cutoff value of TRACP-5b from 334 to 396mU/dL. The cutoff value of CRP was same as previous study(0.016 mg/dL). The odds ratio between +/+ and the others were calculated using MedCalc statistical software.
Results
One hundred sixty patients stratified into four classes according to the value of TRACP-5b and CRP: +/+ (n=43), +/- (n=38), -/+ (n=42) and -/- (n=37). Six of the 160 patients developed bone metastases as the initial site of replase within five years from surgery. The Incidence of bone metastases was 9.3%(4/43) in the +/+ patients and 1.7%(2/117) in the others. The incidence was significantly higher in the +/+ patients than in the others(odds ratio: 5.9, 95% CI 1.31 to 33.46, p= 0.045). When the other relapses than bone metastases were included in the analysis, no significant difference was observed between the two groups (odds ratio: 0.4, 95% CI 0.02 to 7.43, P=0.521). TRACP-5b concentration alone could not classify the patients into two groups according to significantly different incidences of bone metastases(odds ratio: 13.7, 95% CI 0.76 to 247.22, P=0.076).
Conclusion
The results in here show that the prediction of bone metastases by the combination of TRACP-5b and CRP concentrations is clinically relevant in the luminal patients. Reliable prediction of bone metastases would be realized by combination of our prediction method and one of genomic profilings. We plan to increase the number of patients to provide sufficient statistical power to confirm this diagnostic potential.
Citation Format: Shimoda M, Nishimukai A, Shibata N, Kikuchi W, Hutawatari H, Ishihara H, Miyoshi Y, Noguchi S. Prediction of bone metastases of breast cancer using combined markers of bone metabolism and inflammation. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P2-08-27.
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Affiliation(s)
- M Shimoda
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - A Nishimukai
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - N Shibata
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - W Kikuchi
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - H Hutawatari
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - H Ishihara
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - Y Miyoshi
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
| | - S Noguchi
- Osaka University Graduate School of Medicine, Suita, Osaka, Japan; Hyogo College of Medicine, Nishinomiya, Hyogo, Japan; Nittobo Medical Co., Ltd, Koriyama, Fukushima, Japan
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Suzuki Y, Hyodo K, Tanaka Y, Ishihara H. siRNA-lipid nanoparticles with long-term storage stability facilitate potent gene-silencing in vivo. J Control Release 2015; 220:44-50. [DOI: 10.1016/j.jconrel.2015.10.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 09/28/2015] [Accepted: 10/14/2015] [Indexed: 12/18/2022]
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Okamoto S, Inaba K, Iida T, Ishihara H, Ichikawa S, Ashida M. Fabrication of single-crystalline microspheres with high sphericity from anisotropic materials. Sci Rep 2014; 4:5186. [PMID: 24898213 PMCID: PMC4046134 DOI: 10.1038/srep05186] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2014] [Accepted: 05/15/2014] [Indexed: 12/02/2022] Open
Abstract
Microspheres with high sphericity exhibit unique functionalities. In particular, their high symmetry makes them excellent omnidirectional optical resonators. As such perfect micrometre-sized spheres are known to be formed by surface tension, melt cooling is a popular method for fabricating microspheres. However, it is extremely difficult to produce crystalline microspheres using this method because their surfaces are normally faceted. Only microspheres of polymers, glass, or ceramics have been available, while single-crystalline microspheres, which should be useful in optical applications, have been awaiting successful production. Here we report the fabrication of single-crystalline semiconductor microspheres that have surfaces with atomic-level smoothness. These microspheres were formed by performing laser ablation in superfluid helium to create and moderately cool a melt of the anisotropic semiconductor material. This novel method provides cooling conditions that are exceptionally suited for the fabrication of single-crystalline microspheres. This finding opens a pathway for studying the hidden mechanism of anisotropy-free crystal growth and its applications.
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Affiliation(s)
- Shinya Okamoto
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
| | - Kazuhiro Inaba
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
| | - Takuya Iida
- 1] Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, 1-2, Gakuencho, Nakaku, Sakai, Osaka 599-8570, Japan [2]
| | - Hajime Ishihara
- Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuencho, Nakaku, Sakai, Osaka 599-8531, Japan
| | - Satoshi Ichikawa
- Institute for NanoScience Design, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
| | - Masaaki Ashida
- Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyamacho, Toyonaka, Osaka 560-8531, Japan
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Osaka Y, Yokoshi N, Nakatani M, Ishihara H. Enhanced up-conversion of entangled photons and quantum interference under a localized field in nanostructures. Phys Rev Lett 2014; 112:133601. [PMID: 24745414 DOI: 10.1103/physrevlett.112.133601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Indexed: 06/03/2023]
Abstract
We theoretically investigate the up-conversion process of two entangled photons on a molecule, which is coupled by a cavity or nanoscale metallic structure. Within one-dimensional input-output theory, the propagators of the photons are derived analytically and the up-conversion probability is calculated numerically. It is shown that the coupling with the nanostructure clearly enhances the process. We also find that the enhancement becomes further pronounced for some balanced system parameters, such as the quantum correlation between photons, radiation decay, and coupling between the nanostructure and molecule. The nonmonotonic dependencies are reasonably explained in view of quantum interference between the coupled modes of the whole system. This result indicates that controlling quantum interference and correlation is crucial for few-photon nonlinearity, and provides a new guidance to wide variety of fields, e.g., quantum electronics and photochemistry.
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Affiliation(s)
- Yoshiki Osaka
- Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
| | - Nobuhiko Yokoshi
- Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
| | - Masatoshi Nakatani
- Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
| | - Hajime Ishihara
- Osaka Prefecture University, 1-1 Gakuen-cho, Sakai, Osaka 599-8531, Japan
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Uryu S, Ajiki H, Ishihara H. Model of finite-momentum excitons driven by surface plasmons in photoexcited carbon nanotubes covered by gold metal films. Phys Rev Lett 2013; 110:257401. [PMID: 23829758 DOI: 10.1103/physrevlett.110.257401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Indexed: 06/02/2023]
Abstract
Optical spectra of finite-momentum excitons in carbon nanotubes with gold nanostructures are theoretically studied. A Green function method is developed for self-consistently solving Maxwell equations including the quantum-mechanical nonlocal response of the nanotubes and the local response of the nanostructures. Excitons with finite momenta in the axis direction in the nanotubes are effectively excited by localized electric fields due to surface plasmons in the gold nanostructures and counteract the surface plasmons through depolarization fields, showing the crucial self-consistency of these effects.
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Affiliation(s)
- Seiji Uryu
- Department of Materials Science and Engineering, Iwate University, 4-3-5 Ueda, Morioka, Iwate 020-8551, Japan.
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Yoneda H, Nakamura T, Shirao S, Tanaka N, Ishihara H, Suehiro E, Koizumi H, Isotani E, Suzuki M. Multicenter Prospective Cohort Study on Volume Management After Subarachnoid Hemorrhage: Hemodynamic Changes According to Severity of Subarachnoid Hemorrhage and Cerebral Vasospasm. Stroke 2013; 44:2155-61. [DOI: 10.1161/strokeaha.113.001015] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
Abstract
Air jet melt spinning for multifilament system was studied both theoretically and experimentally. Basic equations describing the multifilament system of air jet melt spinning were derived by considering air temperature and velocity of cooling flow surrounding the individual spinlines. Numerical computations of the fundamental equations for air jet melt spinning were carried out for various spinning conditions. Steady-state solutions obtained give the spinline cross sectional area, spinline temperature, spinning tension and spinline velocity. These are described as a function of the distance measured downward from the spinneret. Air jet melt spinning experiments were conducted for poly-(ethyleneterephthalate) (PET) having an intrinsic viscosity of 0.61. The spinning variables were changed mainly in terms of throughput, distance from spinneret point to ejector and air pressure in the ejector. Good correlations between theory and experiment were obtained for the final spinline speed or as-spun fiber denier. Further, the molecular orientation of asspun fiber can be estimated using the computed stretching speed at the ejector point. It was found that the simulation program of multifilament air jet spinning is very useful in finding the appropriate spinning conditions for the industrial spinning process and in estimating fiber properties.
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Affiliation(s)
- H. Ishihara
- Katata Research Center, Toyobo Co. Ltd., Shiga, Japan
| | - S. Hayashi
- Katata Research Center, Toyobo Co. Ltd., Shiga, Japan
| | - H. Ikeuchi
- Katata Research Center, Toyobo Co. Ltd., Shiga, Japan
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Shibaya M, Ishihara H, Yamashita K, Yoshihara N, Nonomura C. Effect of Mold Temperature on Structure and Property Variations of PBT Injection Moldings in the Thickness Direction. INT POLYM PROC 2013. [DOI: 10.3139/217.1827] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
During injection molding process, the surface of flowing resin in contact with the mold surface is cooled first followed by the cooling of inner part. This results in the variation of microstructure in moldings through the thickness direction. It has been reported that these phenomena result in the layered structure of injection moldings. Particularly, because of the rapid rate of crystallization, PBT injection moldings have well-defined skin and core layers. The purpose of this study is to investigate the effect of mold temperature on the development of structure and property variations of PBT injection moldings in the thickness direction. Tensile tests were performed using dumbbell specimens that were stamped out from the sliced specimens of moldings. Neck phenomenon occurred irrespective of mold temperature and distance from the surface of moldings. The start point of neck propagation shifted to higher strain with increasing distance from the surface. Tensile modulus increased with increasing distance from the surface. In order to discuss these results from a structural viewpoint, the microstructure of each layer was evaluated by density, wide-angle X-ray diffraction and Fourier transform infrared absorption measurements. The delay in necking start points with increasing distance from the surface is due to the higher crystallinity of the inner layer compared to that of the layer near the surface. Two crystal forms of PBT (α- and β-forms) were developed in injection moldings. The region near the surface, where content of α-form is larger than that of β-form, becomes thinner with increasing mold temperature. It is known that the crystal modulus of α-form is lower than that of β-form. Therefore the portion of moldings with lower tensile modulus and yield strength becomes smaller. It is suggested that the border between the skin and core layers, where tensile property changes, shifts to the surface of PBT injection moldings as mold temperature increases.
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Affiliation(s)
- M. Shibaya
- Division of Advanced Fibro-Science, Kyoto Institute of Technology, Kyoto, Japan
| | - H. Ishihara
- Division of Advanced Fibro-Science, Kyoto Institute of Technology, Kyoto, Japan
| | | | | | - C. Nonomura
- Research Center, Toyobo Co., Ltd., Shiga, Japan
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Tanaka R, Arita K, Jitsukawa S, Ishihara H, Hirano R, Tago N, Okada K, Mizuno H. Abstract P28. Plast Reconstr Surg 2013. [DOI: 10.1097/01.prs.0000430192.24567.d9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Shoji T, Saitoh J, Kitamura N, Nagasawa F, Murakoshi K, Yamauchi H, Ito S, Miyasaka H, Ishihara H, Tsuboi Y. Permanent fixing or reversible trapping and release of DNA micropatterns on a gold nanostructure using continuous-wave or femtosecond-pulsed near-infrared laser light. J Am Chem Soc 2013; 135:6643-8. [PMID: 23586869 DOI: 10.1021/ja401657j] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The use of localized surface plasmons (LSPs) for highly sensitive biosensors has already been investigated, and they are currently being applied for the optical manipulation of small nanoparticles. The objective of this work was the optical trapping of λ-DNA on a metallic nanostructure with femtosecond-pulsed (fs) laser irradiation. Continuous-wave laser irradiation, which is generally used for plasmon excitation, not only increased the electromagnetic field intensity but also generated heat around the nanostructure, causing the DNA to become permanently fixed on the plasmonic substrate. Using fs laser irradiation, on the other hand, the reversible trapping and release of the DNA was achieved by switching the fs laser irradiation on and off. This trap-and-release behavior was clearly observed using a fluorescence microscope. This technique can also be used to manipulate other biomolecules such as nucleic acids, proteins, and polysaccharides and will prove to be a useful tool in the fabrication of biosensors.
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Affiliation(s)
- Tatsuya Shoji
- Department of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
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Ishikawa A, Osono K, Nobuhiro A, Mizumoto Y, Torimoto T, Ishihara H. Theory for self-consistent interplay between light and nanomaterials strongly modified by metallic nanostructures. Phys Chem Chem Phys 2013; 15:4214-25. [DOI: 10.1039/c2cp43442c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nakatani M, Nobuhiro A, Yokoshi N, Ishihara H. Model of the photoexcitation processes of a two-level molecule coherently coupled to an optical antenna. Phys Chem Chem Phys 2013; 15:8144-50. [DOI: 10.1039/c3cp43834a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Engels C, Ruberta F, de Kruijf E, Smit V, Ishihara H, Liefers G, van de Velde C, Kuppen P. 135. The prognostic value of apoptotic and proliferative markers in breast cancer. Eur J Surg Oncol 2012. [DOI: 10.1016/j.ejso.2012.06.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Kudo T, Ishihara H. Proposed nonlinear resonance laser technique for manipulating nanoparticles. Phys Rev Lett 2012; 109:087402. [PMID: 23002774 DOI: 10.1103/physrevlett.109.087402] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 12/28/2011] [Indexed: 06/01/2023]
Abstract
We propose nonlinear resonant laser manipulation, a technique that drastically enhances the number of degrees of freedom when manipulating nano-objects. Considering the high laser intensity required to trap single molecules, we calculate the radiation force exerted on a molecule in a focused laser beam by solving the density matrix equations using the nonperturbative method. The results coherently elucidate certain recently reported puzzling phenomena that contradict the conventional understanding of laser trapping. Further, we demonstrate unconventional forms of laser manipulations using "stimulated recoil force" and "subwavelength laser manipulation."
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Affiliation(s)
- Tetsuhiro Kudo
- Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka, Japan.
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