1
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Sun JP, Ren YT, Gao RX, Gao BH, He MJ, Qi H. Influence of the temperature-dependent dielectric constant on the photoacoustic effect of gold nanospheres. Phys Chem Chem Phys 2022; 24:29667-29682. [PMID: 36453140 DOI: 10.1039/d2cp03866h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Photoacoustic imaging techniques with gold nanoparticles as contrast agents have received a great deal of attention. The photoacoustic response of gold nanoparticles strongly depends on the far-field optical properties, which essentially depend on the dielectric constant of the material. The dielectric constant of gold not only varies with wavelength but is also affected by temperature. However, the effect of the temperature dependence of the dielectric constant on gold nanoparticles' photoacoustic response has not been fully investigated. In this work, the Drude-Lorentz model and Mie theory are used to calculate the dielectric constant and absorption efficiency of gold nanospheres in aqueous solution, respectively. Then, the finite element method is used to simulate the heat transfer process of gold nanospheres and surrounding water. Finally, the one-dimensional velocity-stress equation is solved by the finite-difference time-domain method to obtain the photoacoustic response of gold nanospheres. The results show that under the irradiation of a high-fluence nanosecond pulse laser, ignoring the temperature dependence of the dielectric constant will lead to large errors in the photothermal response and the nonlinear photoacoustic signals (it can even exceed 20% and 30%). The relative error of the photothermal and photoacoustic response caused by ignoring the temperature-dependent dielectric constant is determined from both the temperature dependence of absorption efficiency and the maximum temperature increase of gold nanospheres. This work provides a new perspective for the photothermal and photoacoustic effects of gold nanospheres, which is meaningful for the development of high-resolution photoacoustic detectors and nano/microscale temperature measurement techniques.
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Affiliation(s)
- Jian-Ping Sun
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China, 150001. .,Key Laboratory of Aerospace Thermophysics, Ministry of Industry and Information Technology, Harbin, China, 150001
| | - Ya-Tao Ren
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China, 150001. .,Key Laboratory of Aerospace Thermophysics, Ministry of Industry and Information Technology, Harbin, China, 150001.,Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, UK
| | - Ren-Xi Gao
- Department of Optoelectronic Science, Harbin Institute of Technology at Weihai, Weihai 264209, China.
| | - Bao-Hai Gao
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China, 150001. .,Key Laboratory of Aerospace Thermophysics, Ministry of Industry and Information Technology, Harbin, China, 150001
| | - Ming-Jian He
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China, 150001. .,Key Laboratory of Aerospace Thermophysics, Ministry of Industry and Information Technology, Harbin, China, 150001
| | - Hong Qi
- School of Energy Science and Engineering, Harbin Institute of Technology, Harbin, China, 150001. .,Key Laboratory of Aerospace Thermophysics, Ministry of Industry and Information Technology, Harbin, China, 150001
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2
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Kang P, Wang Y, Wilson BA, Liu Y, Dawkrajai N, Randrianalisoa J, Qin Z. Nanoparticle Fragmentation Below the Melting Point Under Single Picosecond Laser Pulse Stimulation. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2021; 125:26718-26730. [PMID: 35872880 PMCID: PMC9302544 DOI: 10.1021/acs.jpcc.1c06684] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Understanding the laser-nanomaterials interaction including nanomaterial fragmentation has important implications in nanoparticle manufacturing, energy, and biomedical sciences. So far, three mechanisms of laser-induced fragmentation have been recognized including non-thermal processes and thermomechanical force under femtosecond pulses, and the phase transitions under nanosecond pulses. Here we show that single picosecond (ps) laser pulse stimulation leads to anomalous fragmentation of gold nanoparticles that deviates from these three mechanisms. The ps laser fragmentation was weakly dependent on particle size, and it resulted in a bimodal size distribution. Importantly, ps laser stimulation fragmented particles below the whole particle melting point and below the threshold for non-thermal mechanism. We propose a framework based on near-field enhancement and nanoparticle surface melting to account for the ps laser-induced fragmentation observed here. This study reveals a new form of surface ablation that occurs under picosecond laser stimulation at low fluence.
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Affiliation(s)
- Peiyuan Kang
- Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Yang Wang
- Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Blake A. Wilson
- Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Yaning Liu
- Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Napat Dawkrajai
- Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
| | - Jaona Randrianalisoa
- Institut de Thermique, Mécanique, Matériaux (ITheMM EA 7548), University of Reims Champagne–Ardenne, Reims, Cedex 2 51687, France
| | - Zhenpeng Qin
- Department of Mechanical Engineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
- Department of Bioengineering, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
- Center for Advanced Pain Studies, University of Texas at Dallas, 800 West Campbell Road, Richardson, Texas 75080, United States
- Department of Surgery, University of Texas at Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390, United States
- Corresponding Author.
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3
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Chen J, Fan X, Liu J, Gu C, Shi Y, Zheng W, Singh DJ. Interior Melting of Rapidly Heated Gold Nanoparticles. J Phys Chem Lett 2021; 12:8170-8177. [PMID: 34415170 DOI: 10.1021/acs.jpclett.1c02081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Normal melting invariably starts from surfaces or interfaces due to the weaker bonding constraints in these regions. However, we show that melting can be initiated from the interior of gold nanoparticles with high heating rates. We find that melting starts from the surface with the formation of a premelting layer, as usual, but that the premelting layer does not extend to the interior under certain conditions. Instead, liquid nucleation occurs in the core of the nanoparticle. This unexpected interior melting is connected to the slower melting kinetics, which is related to heat transfer near the premelted surface. The required conditions for interior melting are a suitable size of the nanoparticle and a sufficiently fast heating rate. The present results point to a novel melting regime in nanoparticles. We note that the time scales are now accessible using ultrafast tools such as X-ray lasers that can probe dynamical structure changes, suggesting opportunities for experiments.
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Affiliation(s)
- Jixing Chen
- Key Laboratory of Automobile Materials of MOE, College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Xiaofeng Fan
- Key Laboratory of Automobile Materials of MOE, College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Jialin Liu
- Key Laboratory of Automobile Materials of MOE, College of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Changzhi Gu
- Laboratory of Microfabrication, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yunfeng Shi
- Department of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Weitao Zheng
- Key Laboratory of Automobile Materials of MOE, College of Materials Science and Engineering, Jilin University, Changchun 130012, China
- State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130012, China
| | - David J Singh
- Department of Physics and Astronomy and Department of Chemistry, University of Missouri, Columbia, Missouri 65211-7010, United States
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4
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Cavigli L, Khlebtsov BN, Centi S, Khlebtsov NG, Pini R, Ratto F. Photostability of Contrast Agents for Photoacoustics: The Case of Gold Nanorods. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E116. [PMID: 33419130 PMCID: PMC7825532 DOI: 10.3390/nano11010116] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
Plasmonic particles as gold nanorods have emerged as powerful contrast agents for critical applications as the photoacoustic imaging and photothermal ablation of cancer. However, their unique efficiency of photothermal conversion may turn into a practical disadvantage, and expose them to the risk of overheating and irreversible photodamage. Here, we outline the main ideas behind the technology of photoacoustic imaging and the use of relevant contrast agents, with a main focus on gold nanorods. We delve into the processes of premelting and reshaping of gold nanorods under illumination with optical pulses of a typical duration in the order of few ns, and we present different approaches to mitigate this issue. We undertake a retrospective classification of such approaches according to their underlying, often implicit, principles as: constraining the initial shape; or speeding up their thermal coupling to the environment by lowering their interfacial thermal resistance; or redistributing the input energy among more particles. We discuss advantages, disadvantages and contexts of practical interest where one solution may be more appropriate than the other.
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Affiliation(s)
- Lucia Cavigli
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
| | - Boris N. Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia; (B.N.K.); (N.G.K.)
| | - Sonia Centi
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
| | - Nikolai G. Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia; (B.N.K.); (N.G.K.)
- Saratov State University, 83 Ulitsa Astrakhanskaya, 410026 Saratov, Russia
| | - Roberto Pini
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
| | - Fulvio Ratto
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
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5
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Yang X, Wan W, Wu L, Smaluk V, Shaftan T, Zhu Y. Toward monochromated sub-nanometer UEM and femtosecond UED. Sci Rep 2020; 10:16171. [PMID: 32999357 PMCID: PMC7527342 DOI: 10.1038/s41598-020-73168-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 09/09/2020] [Indexed: 11/09/2022] Open
Abstract
A preliminary design of a mega-electron-volt (MeV) monochromator with 10−5 energy spread for ultrafast electron diffraction (UED) and ultrafast electron microscopy (UEM) is presented. Such a narrow energy spread is advantageous in both the single shot mode, where the momentum resolution in diffraction is improved, and the accumulation mode, where shot-to-shot energy jitter is reduced. In the single-shot mode, we numerically optimized the monochromator efficiency up to 13% achieving 1.3 million electrons per pulse. In the accumulation mode, to mitigate the efficiency degradation caused by the shot-to-shot energy jitter, an optimized gun phase yields only a mild reduction of the single-shot efficiency, therefore the number of accumulated electrons nearly proportional to the repetition rate. Inspired by the recent work of Qi et al. (Phys Rev Lett 124:134803, 2020), a novel concept of applying reverse bending magnets to adjust the energy-dependent path length difference has been successfully realized in designing a MeV monochromator to achieve the minimum energy-dependent path length difference between cathode and sample. Thanks to the achromat design, the pulse length of the electron bunches and the energy-dependent timing jitter can be greatly reduced to the 10 fs level. The introduction of such a monochromator provides a major step forward, towards constructing a UEM with sub-nm resolution and a UED with ten-femtosecond temporal resolution. The one-to-one mapping between the electron beam parameter and the diffraction peak broadening enables a real-time nondestructive diagnosis of the beam energy spread and divergence. The tunable electric–magnetic monochromator allows the scanning of the electron beam energy with a 10−5 precision, enabling online energy matching for the UEM, on-momentum flux maximizing for the UED and real-time energy measuring for energy-loss spectroscopy. A combination of the monochromator and a downstream chicane enables “two-color” double pulses with femtosecond duration and the tunable delay in the range of 10 to 160 fs, which can potentially provide an unprecedented femtosecond time resolution for time resolved UED.
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Affiliation(s)
- Xi Yang
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA.
| | - Weishi Wan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China.
| | - Lijun Wu
- Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Victor Smaluk
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Timur Shaftan
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Yimei Zhu
- Condensed Matter Physics and Materials Science Division, Brookhaven National Laboratory, Upton, NY, 11973, USA
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6
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Magnozzi M, Ferrera M, Mattera L, Canepa M, Bisio F. Plasmonics of Au nanoparticles in a hot thermodynamic bath. NANOSCALE 2019; 11:1140-1146. [PMID: 30574968 DOI: 10.1039/c8nr09038f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Electromagnetically-heated metal nanoparticles can be exploited as efficient heat sources at the nanoscale. The assessment of their temperature is, however, often performed indirectly by modelling their temperature-dependent dielectric response. Direct measurements of the optical properties of metallic nanoparticles in equilibrium with a thermodynamic bath provide a calibration of their thermo-optical response, to be exploited for refining current thermoplasmonic models or whenever direct temperature assessments are practically unfeasible. We investigated the plasmonic response of supported Au nanoparticles in a thermodynamic bath from room temperature to 350 °C. A model explicitly including the temperature-dependent dielectric function of the metal and finite-size corrections to the nanoparticles' permittivity correctly reproduced experimental data for temperatures up to 75 °C. The model accuracy gradually faded for higher temperatures. Introducing a temperature-dependent correction that effectively mimics a surface-scattering-like source of damping in the permittivity of the nanoparticles restored good agreement with the data. A finite-size thermodynamic effect such as surface premelting may be invoked to explain this effect.
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Affiliation(s)
- Michele Magnozzi
- OptMatLab, Dipartimento di Fisica, Università di Genova, via Dodecaneso 33, I-16146 Genova, Italy
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7
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Kang H, Buchman JT, Rodriguez RS, Ring HL, He J, Bantz KC, Haynes CL. Stabilization of Silver and Gold Nanoparticles: Preservation and Improvement of Plasmonic Functionalities. Chem Rev 2018; 119:664-699. [DOI: 10.1021/acs.chemrev.8b00341] [Citation(s) in RCA: 258] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hyunho Kang
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Joseph T. Buchman
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Rebeca S. Rodriguez
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Hattie L. Ring
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Jiayi He
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Kyle C. Bantz
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
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8
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Dai H, Fu P, Li Z, Zhao J, Yu X, Sun J, Fang H. Electricity mediated plasmonic tip engineering on single Ag nanowire for SERS. OPTICS EXPRESS 2018; 26:25031-25036. [PMID: 30469611 DOI: 10.1364/oe.26.025031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 05/26/2018] [Indexed: 06/09/2023]
Abstract
An electricity-mediated plasmonic engineering was applied on a single Ag nanowire to engineer its tip for surface-enhanced Raman scattering (SERS). Under this constant photoelectric field treatment, a significant sharpening of the tip and reduction of the surface fluctuation was observed for the Ag nanowire tip via in situ atomic force microscopy. A significant SERS signal enhancement was thus obtained after the tip engineering. The relevant dynamic mechanisms of the tip engineering, including the light-induced plasmonic phase transition and electrostatic force driven flow on the Ag nanowire tip are discussed in detail. It is expected that this type of tip engineering will greatly enhance the signal of single metal nanowire SERS probes and provide new insights into fabrication technologies for metal nanostructures.
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9
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Vasileiadis T, Waldecker L, Foster D, Da Silva A, Zahn D, Bertoni R, Palmer RE, Ernstorfer R. Ultrafast Heat Flow in Heterostructures of Au Nanoclusters on Thin Films: Atomic Disorder Induced by Hot Electrons. ACS NANO 2018; 12:7710-7720. [PMID: 29995378 DOI: 10.1021/acsnano.8b01423] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We study the ultrafast structural dynamics, in response to electronic excitations, in heterostructures composed of size-selected Au nanoclusters on thin-film substrates with the use of femtosecond electron diffraction. Various forms of atomic motion, such as thermal vibrations, thermal expansion, and lattice disordering, manifest as distinct and quantifiable reciprocal-space observables. In photoexcited supported nanoclusters, thermal equilibration proceeds through intrinsic heat flow between their electrons and their lattice and extrinsic heat flow between the nanoclusters and their substrate. For an in-depth understanding of this process, we have extended the two-temperature model to the case of 0D/2D heterostructures and used it to describe energy flow among the various subsystems, to quantify interfacial coupling constants and to elucidate the role of the optical and thermal substrate properties. When lattice heating of Au nanoclusters is dominated by intrinsic heat flow, a reversible disordering of atomic positions occurs, which is absent when heat is injected as hot substrate phonons. The present analysis indicates that hot electrons can distort the lattice of nanoclusters, even if the lattice temperature is below the equilibrium threshold for surface premelting. Based on simple considerations, the effect is interpreted as activation of surface diffusion due to modifications of the potential energy surface at high electronic temperatures. We discuss the implications of such a process in structural changes during surface chemical reactions.
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Affiliation(s)
| | - Lutz Waldecker
- Fritz-Haber-Institut , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Dawn Foster
- Nanoscale Physics Research Laboratory, School of Physics and Astronomy , University of Birmingham , Edgbaston , Birmingham B15 2TT , United Kingdom
| | - Alessandra Da Silva
- Nanoscale Physics Research Laboratory, School of Physics and Astronomy , University of Birmingham , Edgbaston , Birmingham B15 2TT , United Kingdom
| | - Daniela Zahn
- Fritz-Haber-Institut , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Roman Bertoni
- Fritz-Haber-Institut , Faradayweg 4-6 , 14195 Berlin , Germany
| | - Richard E Palmer
- College of Engineering , Swansea University , Bay Campus, Fabian Way, Swansea SA1 8EN , United Kingdom
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10
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Beck A, Yang AC, Leland AR, Riscoe AR, Lopez FA, Goodman ED, Cargnello M. Understanding the preferential oxidation of carbon monoxide (PrOx) using size-controlled Au nanocrystal catalyst. AIChE J 2018. [DOI: 10.1002/aic.16206] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Arik Beck
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
| | - An-Chih Yang
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
| | - Amelia R. Leland
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
| | - Andrew R. Riscoe
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
| | - Francisco A. Lopez
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
| | - Emmett D. Goodman
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
| | - Matteo Cargnello
- Dept. of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis; Stanford University; Stanford CA 94305
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11
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Power Spectral Density Evaluation of Laser Milled Surfaces. MATERIALS 2017; 11:ma11010050. [PMID: 29286313 PMCID: PMC5793548 DOI: 10.3390/ma11010050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2017] [Revised: 12/12/2017] [Accepted: 12/22/2017] [Indexed: 11/17/2022]
Abstract
Ablating surfaces with a pulsed laser system in milling processes often leads to surface changes depending on the milling depth. Especially if a constant surface roughness and evenness is essential to the process, structural degradation may advance until the process fails. The process investigated is the generation of precise thrust by laser ablation. Here, it is essential to predict or rather control the evolution of the surfaces roughness. Laser ablative milling with a short pulse laser system in vacuum (≈1 Pa) were performed over depths of several 10 µm documenting the evolution of surface roughness and unevenness with a white light interference microscope. Power spectral density analysis of the generated surface data reveals a strong influence of the crystalline structure of the solid. Furthermore, it was possible to demonstrate that this effect could be suppressed for gold.
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12
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Plech A, Ibrahimkutty S, Reich S, Newby G. Thermal dynamics of pulsed-laser excited gold nanorods in suspension. NANOSCALE 2017; 9:17284-17292. [PMID: 29090293 DOI: 10.1039/c7nr06125k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Photothermal reactions of metallic nanostructures, such as gold nanorods show appealing structural relaxations, such as bubble formation or particle modification. We have employed a pump-probe method to record the structural relaxations of a suspension of gold nanorods upon femtosecond laser excitation by pulsed X-ray scattering both with wide-angle and small-angle sensitivity. Single-pulse reactions include transient bubble formation at 20 J m-2 and irreversible nanorod reshaping at 30 J m-2. Thus the window for reversible excitation is very narrow. Additionally we could map the time-domain and fluence behaviour in a wide range to characterize the relaxations comprehensively. The polarized laser pulse first selectively excites nanorods aligned with the laser electric field, but at higher fluence non-aligned rods are also transformed. At low fluence this transformation happens in the solid state, while at higher fluence the rods melt.
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Affiliation(s)
- Anton Plech
- Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany.
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13
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Oang KY, Yang C, Muniyappan S, Kim J, Ihee H. SVD-aided pseudo principal-component analysis: A new method to speed up and improve determination of the optimum kinetic model from time-resolved data. STRUCTURAL DYNAMICS (MELVILLE, N.Y.) 2017; 4:044013. [PMID: 28405591 PMCID: PMC5382018 DOI: 10.1063/1.4979854] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 03/24/2017] [Indexed: 05/22/2023]
Abstract
Determination of the optimum kinetic model is an essential prerequisite for characterizing dynamics and mechanism of a reaction. Here, we propose a simple method, termed as singular value decomposition-aided pseudo principal-component analysis (SAPPA), to facilitate determination of the optimum kinetic model from time-resolved data by bypassing any need to examine candidate kinetic models. We demonstrate the wide applicability of SAPPA by examining three different sets of experimental time-resolved data and show that SAPPA can efficiently determine the optimum kinetic model. In addition, the results of SAPPA for both time-resolved X-ray solution scattering (TRXSS) and transient absorption (TA) data of the same protein reveal that global structural changes of protein, which is probed by TRXSS, may occur more slowly than local structural changes around the chromophore, which is probed by TA spectroscopy.
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Affiliation(s)
| | | | | | - Jeongho Kim
- Department of Chemistry, Inha University , Incheon 22212, South Korea
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14
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Zeng ZC, Wang H, Johns P, Hartland GV, Schultz ZD. Photothermal Microscopy of Coupled Nanostructures and the Impact of Nanoscale Heating in Surface Enhanced Raman Spectroscopy. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2017; 121:11623-11631. [PMID: 28736586 PMCID: PMC5515383 DOI: 10.1021/acs.jpcc.7b01220] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The optical properties of plasmonic nanoparticles are strongly dependent on interactions with other nanoparticles, which complicates analysis for systems larger than a few particles. In this work we examined heat dissipation in aggregated nanoparticles, and its influence on surface enhanced Raman scattering (SERS), through correlated photothermal heterodyne imaging, electron microscopy and SERS measurements. For dimers the per particle absorption cross-sections show evidence of interparticle coupling, however, the effects are much smaller than those for the field enhancements that are important for SERS. For larger aggregates the total absorption was observed to be simply proportional to aggregate volume. This observation allows us to model light absorption and heating in the aggregates by assuming that the particles act as independent heat sources. The heat dissipation calculations show that very high temperatures can be created at the nanoparticle surface, and that the temperature decreases with increasing thermal conductivity of the surroundings. This is in agreement with the SERS measurements that show faster signal degradation for air compared to water environments.
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15
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Gold Nanoparticles for Modulating Neuronal Behavior. NANOMATERIALS 2017; 7:nano7040092. [PMID: 28441776 PMCID: PMC5408184 DOI: 10.3390/nano7040092] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 04/19/2017] [Accepted: 04/19/2017] [Indexed: 11/30/2022]
Abstract
Understanding the detailed functioning and pathophysiology of the brain and the nervous system continues to challenge the scientific community, particularly in terms of scaling up techniques for monitoring and interfacing with complex 3D networks. Nanotechnology has the potential to support this scaling up, where the eventual goal would be to address individual nerve cells within functional units of both the central and peripheral nervous system. Gold nanoparticles provide a variety of physical and chemical properties that have attracted attention as a light-activated nanoscale neuronal interface. This review provides a critical overview of the photothermal and photomechanical properties of chemically functionalized gold nanoparticles that have been exploited to trigger a range of biological responses in neuronal tissues, including modulation of electrical activity and nerve regeneration. The prospects and challenges for further development are also discussed.
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16
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Lalisse A, Tessier G, Plain J, Baffou G. Plasmonic efficiencies of nanoparticles made of metal nitrides (TiN, ZrN) compared with gold. Sci Rep 2016; 6:38647. [PMID: 27934890 PMCID: PMC5146670 DOI: 10.1038/srep38647] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 11/10/2016] [Indexed: 12/03/2022] Open
Abstract
Metal nitrides have been proposed to replace noble metals in plasmonics for some specific applications. In particular, while titanium nitride (TiN) and zirconium nitride (ZrN) possess localized plasmon resonances very similar to gold in magnitude and wavelength, they benefit from a much higher sustainability to temperature. For this reason, they are foreseen as ideal candidates for applications in nanoplasmonics that require high material temperature under operation, such as heat assisted magnetic recording (HAMR) or thermophotovoltaics. This article presents a detailed investigation of the plasmonic properties of TiN and ZrN nanoparticles in comparison with gold nanoparticles, as a function of the nanoparticle morphology. As a main result, metal nitrides are shown to be poor near-field enhancers compared to gold, no matter the nanoparticle morphology and wavelength. The best efficiencies of metal nitrides as compared to gold in term of near-field enhancement are obtained for small and spherical nanoparticles, and they do not exceed 60%. Nanoparticle enlargements or asymmetries are detrimental. These results mitigate the utility of metal nitrides for high-temperature applications such as HAMR, despite their high temperature sustainability. Nevertheless, at resonance, metal nitrides behave as efficient nanosources of heat and could be relevant for applications in thermoplasmonics, where heat generation is not detrimental but desired.
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Affiliation(s)
- Adrien Lalisse
- LNIO/ICD, UMR 6281, CNRS, Technological University of Troyes, 10004, Troyes, France
- Laboratoire de Neurophotonique UMR8250, CNRS, Faculté des sciences biomédicales et fondamentales, Université Paris Descartes, 75270, Paris, France
| | - Gilles Tessier
- Laboratoire de Neurophotonique UMR8250, CNRS, Faculté des sciences biomédicales et fondamentales, Université Paris Descartes, 75270, Paris, France
| | - Jérome Plain
- LNIO/ICD, UMR 6281, CNRS, Technological University of Troyes, 10004, Troyes, France
| | - Guillaume Baffou
- Institut Fresnel, CNRS, Aix Marseille Univ, Centrale Marseille, Marseille, France
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17
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Kim J, Kim KH, Oang KY, Lee JH, Hong K, Cho H, Huse N, Schoenlein RW, Kim TK, Ihee H. Tracking reaction dynamics in solution by pump–probe X-ray absorption spectroscopy and X-ray liquidography (solution scattering). Chem Commun (Camb) 2016; 52:3734-49. [DOI: 10.1039/c5cc08949b] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TRXL and TRXAS are powerful techniques for real-time probing of structural and electronic dynamics of photoinduced reactions in solution phase.
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18
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Balčytis A, Ryu M, Seniutinas G, Juodkazytė J, Cowie BCC, Stoddart PR, Zamengo M, Morikawa J, Juodkazis S. Black-CuO: surface-enhanced Raman scattering and infrared properties. NANOSCALE 2015; 7:18299-18304. [PMID: 26487549 DOI: 10.1039/c5nr04783h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Large surface area samples of nanotextured black CuO were prepared by chemical etching of Cu for use in surface-enhanced Raman scattering (SERS). The SERS intensity of a self-assembled monolayer (SAM) of thiophenol was proportional to the thickness of a nanoscale-conformal Au film deposited by magnetron sputtering over the black CuO. A very high SERS yield of ∼10(4) counts per s per mW was observed for the thiophenol SAM on the thickest Au films studied here. Synchrotron X-ray photoelectron spectroscopy was used to confirm that the surface of the chemically etched Cu was covered by high purity CuO. IR spectral characterization of the black CuO showed a close to linear increase in reflectivity from 25 to 100% over the range of 4000-500 cm(-1) wavenumbers (or 2.5-20 μm in wavelength). Sensing applications and thermal effects in SERS are discussed.
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Affiliation(s)
- Armandas Balčytis
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia. and Center for Physical Sciences and Technology, A. Goštauto 9, LT-01108 Vilnius, Lithuania
| | - Meguya Ryu
- Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Gediminas Seniutinas
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia.
| | - Jurga Juodkazytė
- Center for Physical Sciences and Technology, A. Goštauto 9, LT-01108 Vilnius, Lithuania
| | - Bruce C C Cowie
- Australian Synchrotron, 800 Blackburn Rd., Clayton, VIC 3168, Australia
| | - Paul R Stoddart
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia.
| | | | - Junko Morikawa
- Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, Japan
| | - Saulius Juodkazis
- Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, VIC 3122, Australia. and Center for Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
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19
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Abstract
There is a fundamental interest in studying photoinduced dynamics in nanoparticles and nanostructures as it provides insight into their mechanical and thermal properties out of equilibrium and during phase transitions. Nanoparticles can display significantly different properties from the bulk, which is due to the interplay between their size, morphology, crystallinity, defect concentration, and surface properties. Particularly interesting scenarios arise when nanoparticles undergo phase transitions, such as melting induced by an optical laser. Current theoretical evidence suggests that nanoparticles can undergo reversible nonhomogenous melting with the formation of a core-shell structure consisting of a liquid outer layer. To date, studies from ensembles of nanoparticles have tentatively suggested that such mechanisms are present. Here we demonstrate imaging transient melting and softening of the acoustic phonon modes of an individual gold nanocrystal, using an X-ray free electron laser. The results demonstrate that the transient melting is reversible and nonhomogenous, consistent with a core-shell model of melting. The results have implications for understanding transient processes in nanoparticles and determining their elastic properties as they undergo phase transitions.
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20
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Taylor AB, Siddiquee AM, Chon JWM. Below melting point photothermal reshaping of single gold nanorods driven by surface diffusion. ACS NANO 2014; 8:12071-9. [PMID: 25405517 DOI: 10.1021/nn5055283] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Plasmonic gold nanorod instability and reshaping behavior below melting points are important for many future applications but are yet to be fully understood, with existing nanoparticle melting theories unable to explain the observations. Here, we have systematically studied the photothermal reshaping behavior of gold nanorods irradiated with femtosecond laser pulses to report that the instability is driven by curvature-induced surface diffusion rather than a threshold melting process, and that the stability dramatically decreases with increasing aspect ratio. We successfully utilized the surface diffusion model to explain the observations and found that the activation energy for surface diffusion was dependent on the aspect ratio of the rods, from 0.6 eV for aspect ratio of 5 to 1.5 eV for aspect ratio less than 3. This result indicates that the surface atoms are much easier to diffuse around in larger aspect ratio rods than in shorter rods and can induce reshaping at any given temperature. Current plasmonics and nanorod applications with the sharp geometric features used for greater field enhancement will therefore need to consider surface diffusion driven shape change even at low temperatures.
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Affiliation(s)
- Adam B Taylor
- Centre for Micro-Photonics, Faculty of Science, Engineering and Technology, Swinburne University of Technology , P.O. Box 218, Hawthorn 3122, Victoria, Australia
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21
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Paviolo C, Thompson AC, Yong J, Brown WGA, Stoddart PR. Nanoparticle-enhanced infrared neural stimulation. J Neural Eng 2014; 11:065002. [DOI: 10.1088/1741-2560/11/6/065002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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22
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Polyakov B, Vlassov S, Dorogin LM, Butikova J, Antsov M, Oras S, Lõhmus R, Kink I. Manipulation of nanoparticles of different shapes inside a scanning electron microscope. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2014; 5:133-140. [PMID: 24605279 PMCID: PMC3943919 DOI: 10.3762/bjnano.5.13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 01/16/2014] [Indexed: 05/28/2023]
Abstract
In this work polyhedron-like gold and sphere-like silver nanoparticles (NPs) were manipulated on an oxidized Si substrate to study the dependence of the static friction and the contact area on the particle geometry. Measurements were performed inside a scanning electron microscope (SEM) that was equipped with a high-precision XYZ-nanomanipulator. To register the occurring forces a quartz tuning fork (QTF) with a glued sharp probe was used. Contact areas and static friction forces were calculated by using different models and compared with the experimentally measured force. The effect of NP morphology on the nanoscale friction is discussed.
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Affiliation(s)
- Boris Polyakov
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063, Riga, Latvia
| | - Sergei Vlassov
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063, Riga, Latvia
- Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia
- Estonian Nanotechnology Competence Center, Riia 142, 51014, Tartu, Estonia
| | - Leonid M Dorogin
- Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia
- Estonian Nanotechnology Competence Center, Riia 142, 51014, Tartu, Estonia
| | - Jelena Butikova
- Institute of Solid State Physics, University of Latvia, Kengaraga 8, LV-1063, Riga, Latvia
| | - Mikk Antsov
- Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia
- Estonian Nanotechnology Competence Center, Riia 142, 51014, Tartu, Estonia
| | - Sven Oras
- Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia
- Estonian Nanotechnology Competence Center, Riia 142, 51014, Tartu, Estonia
| | - Rünno Lõhmus
- Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia
- Estonian Nanotechnology Competence Center, Riia 142, 51014, Tartu, Estonia
| | - Ilmar Kink
- Institute of Physics, University of Tartu, Riia 142, 51014, Tartu, Estonia
- Estonian Nanotechnology Competence Center, Riia 142, 51014, Tartu, Estonia
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23
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Chen X, Chen Y, Dai J, Yan M, Zhao D, Li Q, Qiu M. Ordered Au nanocrystals on a substrate formed by light-induced rapid annealing. NANOSCALE 2014; 6:1756-62. [PMID: 24352186 DOI: 10.1039/c3nr05745c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Light-induced rapid annealing (LIRA) is a widely used method to modify the morphology and crystallinity of noble metal nanoparticles, and the nanoparticles generally evolve into nanospheres. It is rather challenging to form faceted Au nanocrystals on a substrate using LIRA. Here the formation of spatially ordered Au nanocrystals using a continuous wave infrared laser is reported, assisted by a metamaterial perfect absorber. Faceted Au nanocrystals in truncated-octahedral or multi-twinned geometries can be obtained. The evolution of morphology and crystallinity of the Au nanoparticles during laser annealing is also revealed, where the crystal grain growth and the surface melting are shown to play key roles in nanocrystal formation. The evolution of morphology also gives the freedom of tuning the absorption spectrum of the metamaterial absorber. These findings provide a novel way for tailoring the morphology and crystallinity of metallic nanoparticles and may pave the way to fabricate refined nano-devices in many potential applications for optics, electronics, catalysis, surface-chemistry and biology.
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Affiliation(s)
- Xi Chen
- Optics and Photonics, School of Information and Communication Technology, KTH Royal Institute of Technology, Electrum 229, 16440 Kista, Sweden.
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24
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Boulais E, Lachaine R, Hatef A, Meunier M. Plasmonics for pulsed-laser cell nanosurgery: Fundamentals and applications. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2013. [DOI: 10.1016/j.jphotochemrev.2013.06.001] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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25
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Abstract
This review is focused on a novel cellular probe, the plasmonic nanobubble (PNB), which has the dynamically tunable and multiple functions of imaging, diagnosis, delivery, therapy and, ultimately, theranostics. The concept of theranostics was recently introduced in order to unite the clinically important stages of treatment, namely diagnosis, therapy and therapy guidance, into one single, rapid and highly accurate procedure. Cell level theranostics will have far-reaching implications for the treatment of cancer and other diseases at their earliest stages. PNBs were developed to support cell level theranostics as a new generation of on-demand tunable cellular probes. A PNB is a transient vapor nanobubble that is generated within nanoseconds around an overheated plasmonic nanoparticle with a short laser pulse. In the short term, we expect that PNB technology will be rapidly adaptable to clinical medicine, where the single cell resolution it provides will be critical for diagnosing incipient or residual disease and eliminating cancer cells, while leaving healthy cells intact. This review discusses mechanisms of plasmonic nanobubbles and their biomedical applications with the focus on cancer cell theranostics.
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Affiliation(s)
- Dmitri Lapotko
- Department of Physics & Astronomy, Department of Biochemistry and Cell Biology, Rice University, Houston, TX 77005, USA; ; Tel.: +1-713-348-3708
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26
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Abstract
In the past 20 years, researchers studying nanomaterials have uncovered many new and interesting properties not found in bulk materials. Extensive research has focused on metal nanoparticles (>3 nm) because of their potential applications, such as in molecular electronics, image markers, and catalysts. In particular, the discovery of metal nanoclusters (<3 nm) has greatly expanded the horizon of nanomaterial research. These nanosystems exhibit molecular-like characteristics as their size approaches the Fermi-wavelength of an electron. The relationships between size and physical properties for nanomaterials are intriguing, because for metal nanosystems in this size regime both size and shape determine electronic properties. Remarkably, changes in the optical properties of nanomaterials have provided tremendous insight into the electronic structure of nanoclusters. The success of synthesizing monolayer protected clusters (MPCs) in the condensed phase has allowed scientists to probe the metal core directly. Au MPCs have become the "gold" standard in nanocluster science, thanks to the rigorous structural characterization already accomplished. The use of ultrafast laser spectroscopy on MPCs in solution provides the benefit of directly studying the chemical dynamics of metal nanoclusters (core), and their nonlinear optical properties. In this Account, we investigate the optical properties of MPCs in the visible region using ultrafast spectroscopy. Based on fluorescence up-conversion spectroscopy, we propose an emission mechanism for these nanoclusters. These clusters behave differently from nanoparticles in terms of emission lifetimes as well as two-photon cross sections. Through further investigation of the transient (excited state) absorption, we have found many unique phenomena of nanoclusters, such as quantum confinement effects and vibrational breathing modes. In summary, based on the differences in the optical properties, the distinction between nanoclusters and nanoparticles appears at a size near 2.2 nm. This is consistent with simulations from a free-electron model proposed for MPCs. The use of ultrafast techniques on these nanoclusters can answer many of the fundamental questions about the nature of these exciting nanomaterials and their applications.
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Affiliation(s)
- Sung Hei Yau
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, United States
| | - Oleg Varnavski
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, United States
| | - Theodore Goodson
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan, 48109, United States
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27
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Kim J, Kim J, Ihee H. Multireference Ab Initio Study of the Ground and Low-Lying Excited States of Cr(CO)2 and Cr(CO)3. J Phys Chem A 2013; 117:3861-8. [DOI: 10.1021/jp401128k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Joonghan Kim
- Department of Chemistry, The Catholic University of Korea, Bucheon, 420-743,
Republic of Korea
| | - Jeongho Kim
- Department
of Chemistry, Inha University, Incheon,
402-751, Republic of Korea
| | - Hyotcherl Ihee
- Center for Nanomaterials and Chemical
Reactions, Institute for Basic Science,
Daejeon, 305-701, Republic of Korea
- Department of Chemistry, KAIST, Daejeon,
305-701, Republic of Korea
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28
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Lukianova-Hleb EY, Volkov AN, Wu X, Lapotko DO. Transient enhancement and spectral narrowing of the photothermal effect of plasmonic nanoparticles under pulsed excitation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:772-6. [PMID: 23161793 PMCID: PMC3772718 DOI: 10.1002/adma.201204083] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Indexed: 05/14/2023]
Abstract
The transient 100-fold enhancement and spectral narrowing to 2 nm of the photothermal conversion by solid gold nanospheres under near-infrared excitation with a short laser pulse is reported. This non-stationary effect was observed for a wide range of optical fluences starting from 10 mJ cm(-2) for single nanospheres, their ensembles and aggregated clusters in water, in vitro and in vivo.
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Affiliation(s)
| | - Alexey N. Volkov
- Department of Materials Science and Engineering, University of Virginia, Charlottesville, VA 22904-4745 USA
| | - Xiangwei Wu
- Department of Head and Neck Surgery, The University of Texas, MD Anderson Cancer Center, Houston, TX 77030 USA
| | - Dmitri O. Lapotko
- Department of Biochemistry and Cell Biology, Department of Physics and Astronomy, Rice University, 6100 Main, MS-140, Houston, TX 77005 USA, Phone: 713-348-3708, Fax: 713-348-5154
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29
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Ullah MA, Li X, Cheng X, Hao X, Su Y, Ma J, Gu M. Low energy-density recording with a high-repetition-rate laser beam in gold-nanorod-embedded discs. OPTICS EXPRESS 2012. [PMID: 23187215 DOI: 10.1364/oe.20.024516] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In this paper, we report on the low energy-density recording with a high-repetition-rate femtosecond pulsed beam in homogenous gold-nanorod-dispersed discs by using low numerical aperture (NA) micro-optics. By focusing a femtosecond pulsed beam at a repetition rate of 82 MHz using a low NA DVD optical head, the spatially-stretched energy density introduces a temperature rising of the polymer matrix. This temperature rising facilitates the surface melting of gold nanorods, which leads to over one-order-of-magnitude reduction in the energy-density threshold for recording, compared with that by focusing single pulses through a high NA objective. Applying this finding, we demonstrate the dual-layer recording in gold-nanorod-dispersed discs with an equivalent capacity of 69 GB. Our results demonstrate the potential of ultra-high density three-dimensional optical memory with a low-cost and DVD-compatible apparatus.
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Affiliation(s)
- Md Azim Ullah
- Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia
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30
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Chen X, Chen Y, Yan M, Qiu M. Nanosecond photothermal effects in plasmonic nanostructures. ACS NANO 2012; 6:2550-7. [PMID: 22356648 DOI: 10.1021/nn2050032] [Citation(s) in RCA: 150] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Photothermal effects in plasmonic nanostructures have great potentials in applications for photothermal cancer therapy, optical storage, thermo-photovoltaics, etc. However, the transient temperature behavior of a nanoscale material system during an ultrafast photothermal process has rarely been accurately investigated. Here a heat transfer model is constructed to investigate the temporal and spatial variation of temperature in plasmonic gold nanostructures. First, as a benchmark scenario, we study the light-induced heating of a gold nanosphere in water and calculate the relaxation time of the nanosphere excited by a modulated light. Second, we investigate heating and reshaping of gold nanoparticles in a more complex metamaterial absorber structure induced by a nanosecond pulsed light. The model shows that the temperature of the gold nanoparticles can be raised from room temperature to >795 K in just a few nanoseconds with a low light luminance, owing to enhanced light absorption through strong plasmonic resonance. Such quantitative predication of temperature change, which is otherwise formidable to measure experimentally, can serve as an excellent guideline for designing devices for ultrafast photothermal applications.
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Affiliation(s)
- Xi Chen
- Laboratory of Photonics and Microwave Engineering, School of Information and Communication Technology, KTH Royal Institute of Technology, Electrum 229, 16440 Kista, Sweden
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31
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Hashimoto S, Werner D, Uwada T. Studies on the interaction of pulsed lasers with plasmonic gold nanoparticles toward light manipulation, heat management, and nanofabrication. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2012. [DOI: 10.1016/j.jphotochemrev.2012.01.001] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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32
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Ibrahimkutty S, Issenmann D, Schleef S, Müller AS, Mathis YL, Gasharova B, Huttel E, Steininger R, Göttlicher J, Baumbach T, Bartels A, Janke C, Plech A. Asynchronous sampling for ultrafast experiments with low momentum compaction at the ANKA ring. JOURNAL OF SYNCHROTRON RADIATION 2011; 18:539-545. [PMID: 21685668 DOI: 10.1107/s0909049511018267] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2011] [Accepted: 05/13/2011] [Indexed: 05/30/2023]
Abstract
A high-repetition-rate pump-probe experiment is presented, based on the asynchronous sampling approach. The low-α mode at the synchrotron ANKA can be used for a time resolution down to the picosecond limit for the time-domain sampling of the coherent THz emission as well as for hard X-ray pump-probe experiments, which probe structural dynamics in the condensed phase. It is shown that a synchronization of better than 1 ps is achieved, and examples of phonon dynamics of semiconductors are presented.
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Affiliation(s)
- Shyjumon Ibrahimkutty
- Institute for Synchrotron Radiation, Karlsruhe Institute of Technology, Karlsruhe, Germany
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33
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Ungureanu C, Kroes R, Petersen W, Groothuis TAM, Ungureanu F, Janssen H, van Leeuwen FWB, Kooyman RPH, Manohar S, van Leeuwen TG. Light interactions with gold nanorods and cells: implications for photothermal nanotherapeutics. NANO LETTERS 2011; 11:1887-1894. [PMID: 21491868 DOI: 10.1021/nl103884b] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Gold nanorods (AuNR) can be tailored to possess an intense and narrow longitudinal plasmon (LP) absorption peak in the far-red to near-infrared wavelength region, where tissue is relatively transparent to light. This makes AuNRs excellent candidates as contrast agents for photoacoustic imaging, and as photothermal therapeutic agents. The favorable optical properties of AuNR which depend on the physical parameters of shape, size and plasmonic coupling effects, are required to be stable during use. We investigate the changes that are likely to occur in these physical parameters in the setting of photothermal therapeutics, and the influence that these changes have on the optical properties and the capacity to achieve target cell death. To this end we study 3 sets of interactions: pulsed light with AuNR, AuNR with cells, and pulsed light with cells incubated with AuNR. In the first situation we ascertain the threshold value of fluence required for photothermal melting or reshaping of AuNR to shorter AuNR or nanospheres, which results in drastic changes in optical properties. In the second situation when cells are exposed to antibody-conjugated AuNR, we observe using transmission electron microscopy (TEM) that the particles are closely packed and clustered inside vesicles in the cells. Using dark-field microscopy we show that plasmonic interactions between AuNRs in this situation causes blue-shifting of the LP absorption peak. As a consequence, no direct lethal damage to cells can be inflicted by laser irradiation at the LP peak. On the other hand, using irradiation at the transverse peak (TP) wavelength in the green, at comparative fluences, extensive cell death can be achieved. We attribute this behavior on the one hand to the photoreshaping of AuNR into spheres and on the other hand to clustering of AuNR inside cells. Both effects create sufficiently high optical absorption at 532 nm, which otherwise would have been present at the LP peak. We discuss implications of these finding on the application of these particles in biomedicine.
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Affiliation(s)
- Constantin Ungureanu
- Biomedical Photonic Imaging Group, MIRA Institute for Biomedical Technology and Technical Medicine, Faculty of Science and Technology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands.
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34
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Affiliation(s)
- Gregory V. Hartland
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-5670, United States
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35
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Lukianova-Hleb E, Hu Y, Latterini L, Tarpani L, Lee S, Drezek RA, Hafner JH, Lapotko DO. Plasmonic nanobubbles as transient vapor nanobubbles generated around plasmonic nanoparticles. ACS NANO 2010; 4:2109-23. [PMID: 20307085 PMCID: PMC2860665 DOI: 10.1021/nn1000222] [Citation(s) in RCA: 196] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
We have used short laser pulses to generate transient vapor nanobubbles around plasmonic nanoparticles. The photothermal, mechanical, and optical properties of such bubbles were found to be different from those of plasmonic nanoparticle and vapor bubbles, as well. This phenomenon was considered as a new complex nanosystem-plasmonic nanobubble (PNB). Mechanical and optical scattering properties of PNB depended upon the nanoparticle surface and heat capacity, clusterization state, and the optical pulse length. The generation of the PNB required much higher laser pulse fluence thresholds than the explosive boiling level and was characterized by the relatively high lower threshold of the minimal size (lifetime) of PNB. Optical scattering by PNB and its diameter (measured as the lifetime) has been varied with the fluence of laser pulse, and this has demonstrated the tunable nature of PNB.
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Affiliation(s)
| | - Ying Hu
- Rice University, 6100 Main Street, TX 77005, USA
| | | | - Luigi Tarpani
- University of Perugia, Via Elce di Sotto, 8, 06123 Perugia, Italy
| | | | | | | | - Dmitri O. Lapotko
- A. V. Lykov Heat & Mass Transfer Institute, 15 P. Brovka St., Minsk, 220072, Belarus
- Rice University, 6100 Main Street, TX 77005, USA
- Rice University, Physics and Astronomy - MS 61, 6100 Main Street, Houston, TX 77005, Tel: 713-348-3708, Fax: 713-348-4150,
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Transformations of gold nanoparticles investigated using variable temperature high-resolution transmission electron microscopy. Ultramicroscopy 2010; 110:506-16. [DOI: 10.1016/j.ultramic.2009.12.010] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2009] [Revised: 12/10/2009] [Accepted: 12/10/2009] [Indexed: 11/17/2022]
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37
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Lapotko D. Plasmonic nanoparticle-generated photothermal bubbles and their biomedical applications. Nanomedicine (Lond) 2010; 4:813-45. [PMID: 19839816 DOI: 10.2217/nnm.09.59] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
This article is focused on the optical generation and detection of photothermal vapor bubbles around plasmonic nanoparticles. We report physical properties of such plasmonic nanobubbles and their biomedical applications as cellular probes. Our experimental studies of gold nanoparticle-generated photothermal bubbles demonstrated the selectivity of photothermal bubble generation, amplification of optical scattering and thermal insulation effect, all realized at the nanoscale. The generation and imaging of photothermal bubbles in living cells (leukemia and carcinoma culture and primary cancerous cells), and tissues (atherosclerotic plaque and solid tumor in animal) demonstrated a noninvasive highly sensitive imaging of target cells by small photothermal bubbles and a selective mechanical, nonthermal damage to the individual target cells by bigger photothermal bubbles due to a rapid disruption of cellular membranes. The analysis of the plasmonic nanobubbles suggests them as theranostic probes, which can be tuned and optically guided at cell level from diagnosis to delivery and therapy during one fast process.
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Affiliation(s)
- Dmitri Lapotko
- AV Lykov Heat & Mass Transfer Institute, Minsk 220072, Belarus.
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38
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Lukianova-Hleb EY, Anderson LJE, Lee S, Hafner JH, Lapotko DO. Hot plasmonic interactions: a new look at the photothermal efficacy of gold nanoparticles. Phys Chem Chem Phys 2010; 12:12237-44. [DOI: 10.1039/c0cp00499e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Ruan CY, Murooka Y, Raman RK, Murdick RA, Worhatch RJ, Pell A. The development and applications of ultrafast electron nanocrystallography. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2009; 15:323-37. [PMID: 19575833 DOI: 10.1017/s1431927609090709] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We review the development of ultrafast electron nanocrystallography as a method for investigating structural dynamics for nanoscale materials and interfaces. Its sensitivity and resolution are demonstrated in the studies of surface melting of gold nanocrystals, nonequilibrium transformation of graphite into reversible diamond-like intermediates, and molecular scale charge dynamics, showing a versatility for not only determining the structures, but also the charge and energy redistribution at interfaces. A quantitative scheme for 3D retrieval of atomic structures is demonstrated with few-particle (<1,000) sensitivity, establishing this nanocrystallographic method as a tool for directly visualizing dynamics within isolated nanomaterials with atomic scale spatio-temporal resolution.
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Affiliation(s)
- Chong-Yu Ruan
- Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.
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Tollan CM, Marcilla R, Pomposo JA, Rodriguez J, Aizpurua J, Molina J, Mecerreyes D. Irreversible thermochromic behavior in gold and silver nanorod/polymeric ionic liquid nanocomposite films. ACS APPLIED MATERIALS & INTERFACES 2009; 1:348-52. [PMID: 20353222 DOI: 10.1021/am800058x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
The novel application of gold and silver nanorods as irreversible thermochromic dyes in polymeric ionic liquid (PIL) nanocomposites is proposed here. These materials have been synthesized by anion exchange of an imidazolium-based PIL in a solution that also contained gold nanorods. This resulted in the entrapment of the nanoobjects within a solid polymer precipitate. In this article, the effect of the temperature was studied in relation to the change of shape and, consequently, color of the gold or silver nanorods within the films. For the nanocomposites studied here, a maximum of two visual thermochromic transitions was observed for gold nanorods and up to three transitions were observed for silver nanorods.
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Affiliation(s)
- Christopher M Tollan
- New Materials Department, CIDETEC-Centre for Electrochemical Technologies, Parque Tecnologico de San Sebastian, Paseo Miramon 196, Donostia-San Sebastian, Spain
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41
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Zijlstra P, Chon JWM, Gu M. White light scattering spectroscopy and electron microscopy of laser induced melting in single gold nanorods. Phys Chem Chem Phys 2009; 11:5915-21. [DOI: 10.1039/b905203h] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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42
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Wang N, Rokhlin SI, Farson DF. Nonhomogeneous surface premelting of Au nanoparticles. NANOTECHNOLOGY 2008; 19:415701. [PMID: 21832652 DOI: 10.1088/0957-4484/19/41/415701] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A reversible nonhomogeneous surface premelting of Au nanoparticles is demonstrated through molecular dynamics simulations. With increasing temperature, liquid-like atoms first appear at some vertices and edges of surface facets, then small liquid regions grow and, at temperatures close to the particle melting temperature, most of the remaining solid-like surface atoms reside on {111} planes which are the most stable against surface premelting. The appearance of a contiguous liquid layer (complete surface premelting) is size dependent and is not observed in very small nanoparticles.
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Affiliation(s)
- Ningyu Wang
- Laboratory for Multiscale Processing and Characterization, Edison Joining Technology Center, The Ohio State University, Columbus, OH 43221, USA
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