1
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Tracking the rotation of single CdS nanorods during photocatalysis with surface plasmon resonance microscopy. Proc Natl Acad Sci U S A 2019; 116:6630-6634. [PMID: 30872472 PMCID: PMC6452698 DOI: 10.1073/pnas.1820114116] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Rotational dynamics of anisotropic nanomaterials reveals and regulates their behaviors and functions in diverse fields ranging from nanomotors, biomechanics, and enzymatic catalysis to microrheology. An optical imaging technique that is suitable for all kinds of anisotropic nanoobjects, regardless of its inherent optical property, is thus highly desirable and it is yet to be demonstrated. In the present work, by taking a nonfluorescent and nonplasmonic CdS nanorod as an example, we demonstrate the capability of a recently developed surface plasmon resonance microscopy for determining the orientation of single anisotropic nanomaterials with arbitrary chemical composition and morphology. While rotational dynamics of anisotropic nanoobjects has often been limited in plasmonic and fluorescent nanomaterials, here we demonstrate the capability of a surface plasmon resonance microscopy (SPRM) to determine the orientation of all kinds of anisotropic nanomaterials. By taking CdS nanorods as an example, it was found that two-dimensional Fourier transform of the asymmetrical wave-like SPRM image resulted in a peak in its angular spectrum in k space. Consistency between the peak angle and the geometrical orientation of the nanorod was validated by both in situ scanning electron microscope characterizations and theoretical calculations. Real-time monitoring of the rotational dynamics of single CdS nanorods further revealed the accelerated rotation under appropriate reaction conditions for photocatalyzed hydrogen generation. The driving force was attributed to the asymmetric production of hydrogen molecules as a result of inhomogeneous distribution of reactive sites within the nanorod. The present work not only builds the experimental and theoretical connections between the orientation of anisotropic nanomaterials and its SPRM images; the general suitability of SPRM also sheds light on broad types of nonfluorescent and nonplasmonic anisotropic nanoobjects from semiconductors to bacteria and viruses.
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2
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Olesiak-Banska J, Waszkielewicz M, Obstarczyk P, Samoc M. Two-photon absorption and photoluminescence of colloidal gold nanoparticles and nanoclusters. Chem Soc Rev 2019; 48:4087-4117. [PMID: 31292567 DOI: 10.1039/c8cs00849c] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review provides a comprehensive description of nonlinear optical (NLO) properties of gold nanoparticles, which can be used in biological applications. The main focus is placed on two-photon absorption (2PA) and two-photon excited photoluminescence (2PEL) - the processes crucial for multiphoton microscopy, which allows deeper imaging of the material and causes less damage to the biological samples in comparison to conventional (one-photon) microscopy. We present the basics of 2PA measurement techniques and a summary of recent achievements in the understanding of multiphoton excitation and the resulting photoluminescence in gold nanoparticles, both plasmonic ones and small nanoclusters with molecule-like properties. The examples of 2PA applications in bioimaging are also presented, with a comment on future challenges and applications.
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Affiliation(s)
- Joanna Olesiak-Banska
- Advanced Materials Engineering and Modelling Group, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland.
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3
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de Carvalho TG, Garcia VB, de Araújo AA, da Silva Gasparotto LH, Silva H, Guerra GCB, de Castro Miguel E, de Carvalho Leitão RF, da Silva Costa DV, Cruz LJ, Chan AB, de Araújo Júnior RF. Spherical neutral gold nanoparticles improve anti-inflammatory response, oxidative stress and fibrosis in alcohol-methamphetamine-induced liver injury in rats. Int J Pharm 2018; 548:1-14. [DOI: 10.1016/j.ijpharm.2018.06.008] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 05/24/2018] [Accepted: 06/04/2018] [Indexed: 02/07/2023]
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4
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Midelet J, El-Sagheer AH, Brown T, Kanaras AG, Débarre A, Werts MHV. Spectroscopic and Hydrodynamic Characterisation of DNA-Linked Gold Nanoparticle Dimers in Solution using Two-Photon Photoluminescence. Chemphyschem 2018; 19:827-836. [PMID: 29465817 DOI: 10.1002/cphc.201701228] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Indexed: 01/08/2023]
Abstract
Two-photon photoluminescence (TPPL) emission spectra of DNA-gold nanoparticle (AuNP) monoconjugates and the corresponding DNA-linked AuNP dimers are obtained by photon time-of-flight spectroscopy. This technique is combined with two-photon photoluminescence fluctuation correlation spectroscopy (TPPL-FCS) to simultaneously monitor the optical and hydrodynamic behaviour of these nano-assemblies in solution, with single-particle sensitivity and microsecond temporal resolution. In this study, the AuNPs have an average core diameter of 12 nm, which renders their dark-field plasmonic light scattering too weak for single-particle imaging. Moreover, as a result of the lack of plasmonic coupling in the dimers, the optical extinction, scattering and photoluminescence spectra of the DNA-AuNP complexes are not sufficiently different to distinguish between monomers and dimers. The use of TPPL-FCS successfully addresses these bottlenecks and enables the distinction between AuNP monomers and AuNP dimers in solution by measurement of their hydrodynamic rotational and translational diffusion.
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Affiliation(s)
- Johanna Midelet
- Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Afaf H El-Sagheer
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Tom Brown
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, United Kingdom
| | - Antonios G Kanaras
- Physics and Astronomy, University of Southampton, Southampton, SO17 1BJ, United Kingdom
| | - Anne Débarre
- Lab. Aimé-Cotton and PPSM, École Normale Supérieure de Cachan, CNRS, 61 Av. du Président Wilson, 94235, Cachan, France
| | - Martinus H V Werts
- Univ Rennes, CNRS, SATIE-UMR8029, 35000, Rennes, France.,École Normale Supérieure de Rennes, Av. R. Schuman, Campus de Ker Lann, 35170, Bruz, France
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5
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Fede C, Albertin G, Petrelli L, De Caro R, Fortunati I, Weber V, Ferrante C. Influence of shear stress and size on viability of endothelial cells exposed to gold nanoparticles. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2017; 19:316. [PMID: 28959137 PMCID: PMC5594036 DOI: 10.1007/s11051-017-3993-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 08/07/2017] [Indexed: 05/17/2023]
Abstract
Screening nanoparticle toxicity directly on cell culture can be a fast and cheap technique. Nevertheless, to obtain results in accordance with those observed in live animals, the conditions in which cells are cultivated should resemble the one encountered in live systems. Microfluidic devices offer the possibility to satisfy this requirement, in particular with endothelial cell lines, because they are capable to reproduce the flowing media and shear stress experienced by these cell lines in vivo. In this work, we exploit a microfluidic device to observe how human umbilical vein endothelial cells (HUVEC) viability changes when subject to a continuous flow of culture medium, in which spherical citrate-stabilized gold nanoparticles of different sizes and at varying doses are investigated. For comparison, the same experiments are also run in multiwells where the cells do not experience the shear stress induced by the flowing medium. We discuss the results considering the influence of mode of exposure and nanoparticle size (24 and 13 nm). We observed that gold nanoparticles show a lower toxicity under flow conditions with respect to static and the HUVEC viability decreases as the nanoparticle surface area per unit volume increases, regardless of size.
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Affiliation(s)
- C. Fede
- Dipartimento di Neuroscienze-Istituto di Anatomia, Università di Padova, Via Gabelli 65, 35131 Padova, Italy
| | - Giovanna Albertin
- Dipartimento di Neuroscienze-Istituto di Anatomia, Università di Padova, Via Gabelli 65, 35131 Padova, Italy
| | - L. Petrelli
- Dipartimento di Neuroscienze-Istituto di Anatomia, Università di Padova, Via Gabelli 65, 35131 Padova, Italy
| | - R. De Caro
- Dipartimento di Neuroscienze-Istituto di Anatomia, Università di Padova, Via Gabelli 65, 35131 Padova, Italy
| | - I. Fortunati
- Dipartimento di Scienze Chimiche e UdR INSTM, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - V. Weber
- Dipartimento di Scienze Chimiche e UdR INSTM, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
| | - Camilla Ferrante
- Dipartimento di Scienze Chimiche e UdR INSTM, Università di Padova, Via Marzolo 1, 35131 Padova, Italy
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6
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Loumaigne M, Laurent G, Werts MHV, Débarre A. Photoluminescence spectra and quantum yields of gold nanosphere monomers and dimers in aqueous suspension. Phys Chem Chem Phys 2016; 18:33264-33273. [DOI: 10.1039/c6cp04032b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photoluminescence spectra and quantum yields of gold spherical monomers and dimers mixed in solution.
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Affiliation(s)
- Matthieu Loumaigne
- Laboratoire Aimé Cotton
- CNRS
- Univ. Paris-Sud
- ENS-Cachan
- Université Paris-Saclay
| | | | | | - Anne Débarre
- Laboratoire Aimé Cotton
- CNRS
- Univ. Paris-Sud
- ENS-Cachan
- Université Paris-Saclay
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7
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Khalili Fard J, Jafari S, Eghbal MA. A Review of Molecular Mechanisms Involved in Toxicity of Nanoparticles. Adv Pharm Bull 2015; 5:447-54. [PMID: 26819915 PMCID: PMC4729339 DOI: 10.15171/apb.2015.061] [Citation(s) in RCA: 178] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 08/20/2015] [Accepted: 08/25/2015] [Indexed: 12/30/2022] Open
Abstract
In recent decades, the use of nanomaterials has received much attention in industrial and medical fields. However, some reports have mentioned adverse effects of these materials on the biological systems and cellular components. There are several major mechanisms for cytotoxicity of nanoparticles (NPs) such as physicochemical properties, contamination with toxic element, fibrous structure, high surface charge and radical species generation. In this review, a brief key mechanisms involved in toxic effect of NPs are given, followed by the in vitro toxicity assays of NPs and prooxidant effects of several NPs such as carbon nanotubes, titanium dioxide NPs, quantum dots, gold NPs and silver NPs.
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Affiliation(s)
- Javad Khalili Fard
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
- Student Research Committee, Tabriz University of Medical Science, Tabriz, Iran
| | - Samira Jafari
- Student Research Committee, Tabriz University of Medical Science, Tabriz, Iran
- Department of Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
| | - Mohammad Ali Eghbal
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tabriz University of Medical Science, Tabriz, Iran
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8
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Loumaigne M, Navarro JRG, Parola S, Werts MHV, Débarre A. The intrinsic luminescence of individual plasmonic nanostructures in aqueous suspension by photon time-of-flight spectroscopy. NANOSCALE 2015; 7:9013-9024. [PMID: 25920495 DOI: 10.1039/c5nr00363f] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have studied the intrinsic one-photon excited luminescence of freely diffusing gold nanoparticles of different shapes in aqueous suspension. Gold nanospheres were used as a reference, since their luminescence has been investigated previously and their light absorption and scattering properties are described analytically by Mie theory. We then studied gold nanobipyramids and nanostars that have recently gained interest as building blocks for new plasmonic nanosensors. The aim of our study is to determine whether the luminescence of gold nanoparticles of complex shape (bipyramids and nanostars) is a plasmon-assisted process, in line with the conclusions of recent spectroscopic studies on spheres and nanorods. Our study has been performed on particles in suspension in order to avoid any artefact from the heterogeneous environment created when particles are deposited on a substrate. We employ a recently developed photon time-of-flight method in combination with correlation spectroscopy of the light scattered by the particles to probe the luminescent properties of individual particles based on a particle-by-particle spectral analysis. Furthermore, we have performed resonant light scattering spectroscopic measurements on the same samples. Our work demonstrates the power of our time-of flight method for uncovering the plasmonic signatures of individual bipyramids and nanostars during their brief passage in the focal volume of a confocal set-up. These spectral features of individual particles remain hidden in macroscopic measurements. We find that the intrinsic photoluminescence emission of gold bipyramids and gold nanostars is mediated by their localized surface plasmons.
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Affiliation(s)
- Matthieu Loumaigne
- École normale supérieure de Rennes, CNRS, SATIE (UMR8029), Campus de Ker Lann, F-35170 Bruz, France
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9
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Evaluation of gold nanoparticles toxicity towards human endothelial cells under static and flow conditions. Microvasc Res 2014; 97:147-55. [PMID: 25446009 DOI: 10.1016/j.mvr.2014.10.010] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 10/12/2014] [Accepted: 10/27/2014] [Indexed: 01/19/2023]
Abstract
A new in vitro model system, adding advection and shear stress associated with a flowing medium, is proposed for the investigation of nanoparticles uptake and toxicity towards endothelial cells, since these processes are normally present when nanoparticles formulations are intravenously administered. In this model system, mechanical forces normally present in vivo, such as advection and shear stress were applied and carefully controlled by growing human umbilical vein endothelial cells inside a microfluidic device and continuously infusing gold nanoparticle (Au NPs) solution in the device. The tests performed in the microfluidic device were also run in multiwells, where no flow is present, so as to compare the two model systems and evaluate if gold nanoparticles toxicity differs under static and flow culture conditions. Full characterization of Au NPs in water and in culture medium was accomplished by standard methods. Two-photon fluorescence correlation spectroscopy was also employed to map the flow speed of Au NPs in the microfluidic device and characterize Au NPs before and after interactions with the cells. Au NPs uptake in both in vitro systems was investigated through electron and fluorescence microscopy and ICP-AES, and NPs toxicity measured through standard bio-analytical tests. Comparison between experiments run in multiwells and in microfluidic device plays a pivotal role for the investigation of nanoparticle-cell interaction and toxicity assessment: our work showed that administration of equal concentrations of Au NPs under flow conditions resulted in a reduced sedimentation of nanoparticle aggregates onto the cells and lower cytotoxicity with respect to experiments run in ordinary static conditions (multiwells).
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10
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Crut A, Maioli P, Del Fatti N, Vallée F. Optical absorption and scattering spectroscopies of single nano-objects. Chem Soc Rev 2014; 43:3921-56. [DOI: 10.1039/c3cs60367a] [Citation(s) in RCA: 147] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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11
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Shahbazyan TV. Theory of plasmon-enhanced metal photoluminescence. NANO LETTERS 2013; 13:194-198. [PMID: 23234309 DOI: 10.1021/nl303851z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Metal photoluminescence (MPL) originates from radiative recombination of photoexcited core holes and conduction band electrons. In metal nanostructures, MPL is enhanced due to the surface plasmon local field effect. We identify another essential process in plasmon-assisted MPL-excitation of Auger plasmons by core holes-that hinders MPL from small nanostructures. We develop a microscopic theory of plasmon-enhanced MPL that incorporates both plasmon-assisted enhancement and suppression mechanisms and derive the enhancement factor for MPL quantum efficiency. Our numerical calculations of MPL from Au nanoparticles are in excellent agreement with the experiment.
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Affiliation(s)
- Tigran V Shahbazyan
- Department of Physics, Jackson State University, Jackson, Mississippi 39217, USA.
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12
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Loumaigne M, Vasanthakumar P, Lombardi A, Richard A, Débarre A. One-photon excited luminescence of single gold particles diffusing in solution under pulsed illumination. Phys Chem Chem Phys 2013; 15:4154-62. [DOI: 10.1039/c2cp43294c] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Hartmann L, Kumar A, Welker M, Fiore A, Julien-Rabant C, Gromova M, Bardet M, Reiss P, Baxter PNW, Chandezon F, Pansu RB. Quenching dynamics in CdSe nanoparticles: surface-induced defects upon dilution. ACS NANO 2012; 6:9033-9041. [PMID: 23009087 DOI: 10.1021/nn303150j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We have analyzed the decays of the fluorescence of colloidal CdSe quantum dots (QDs) suspensions during dilution and titration by the ligands. A ligand shell made of a combination of trioctylphosphine (TOP), oleylamine (OA), and stearic acid (SA) stabilizes the as-synthesized QDs. The composition of the shell was analyzed and quantified using high resolution liquid state 1H nuclear magnetic resonance (NMR) spectroscopy. A quenching of the fluorescence of the QDs is observed upon removal of the ligands by diluting the stock solution of the QDs. The fluorescence is restored by the addition of TOP. We analyze the results by assuming a binomial distribution of quenchers among the QDs and predict a linear trend in the time-resolved fluorescence decays. We have used a nonparametric analysis to show that for our QDs, 3.0 ± 0.1 quenching sites per QD on average are revealed by the removal of TOP. We moreover show that the quenching rates of the quenching sites add up. The decay per quenching site can be compared with the decay at saturation of the dilution effect. This provides a value of 2.88 ± 0.02 for the number of quenchers per QD. We extract the quenching dynamics of one site. It appears to be a process with a distribution of rates that does not involve the ligands.
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Affiliation(s)
- Lucia Hartmann
- Laboratoire d'Electronique Moléculaire, Organique et Hybride (LEMOH), INAC/SPrAM UMR 5819 (CEA-CNRS-UJF), CEA Grenoble, 17, rue des Martyrs, F-38054 Grenoble, France
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14
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Prashanthi S, Lanke SR, Kumar PH, Siva D, Bangal PR. Determination of hydrodynamic properties of bare gold and silver nanoparticles as a fluorescent probe using its surface-plasmon-induced photoluminescence by fluorescence correlation spectroscopy. APPLIED SPECTROSCOPY 2012; 66:835-841. [PMID: 22710248 DOI: 10.1366/11-06511] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Noble-metal nanoparticles labeled with fluorescent molecules are used in a variety of applications requiring the measurement of size and diffusion properties of single nanoprobes. We have successfully used intrinsic surface-plasmon-induced photoluminescence (SPPL) signatures of monodispersed bare gold and silver nanoparticles in water to detect and measure their precise diffusion coefficient, concentration and hydrodynamic radius by fluorescence correlation spectroscopy (FCS). Measurement of the effective hydrodynamic radius confirms particle size to be 80 ± 8 and 64 ± 14 nm for gold and silver, respectively, which is in excellent agreement with scanning electron microscopic measurements made on the same particles. Detection of bare gold and silver nanoparticles at the single-molecule level with moderately high value of "per particle brightness" (PPB) confirms those particles to be used as fluorescent probes in biological research and in different medical and biotechnology applications where fluorescence detection plays a vital role. Additionally, these results demonstrate an alternative method for measuring hydrodynamic properties, particularly the size-distribution of bare noble-metal nanoparticles in solution using data-fitting algorithm for FCS based on the maximum entropy method (MEMFCS).
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Affiliation(s)
- Suthari Prashanthi
- Inorganic and Physical Chemistry Division, Indian Institute of Chemical Technology, Tarnaka, Hyderabad, India
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15
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Dreaden EC, Alkilany AM, Huang X, Murphy CJ, El-Sayed MA. The golden age: gold nanoparticles for biomedicine. Chem Soc Rev 2012; 41:2740-79. [PMID: 22109657 PMCID: PMC5876014 DOI: 10.1039/c1cs15237h] [Citation(s) in RCA: 2007] [Impact Index Per Article: 167.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Gold nanoparticles have been used in biomedical applications since their first colloidal syntheses more than three centuries ago. However, over the past two decades, their beautiful colors and unique electronic properties have also attracted tremendous attention due to their historical applications in art and ancient medicine and current applications in enhanced optoelectronics and photovoltaics. In spite of their modest alchemical beginnings, gold nanoparticles exhibit physical properties that are truly different from both small molecules and bulk materials, as well as from other nanoscale particles. Their unique combination of properties is just beginning to be fully realized in range of medical diagnostic and therapeutic applications. This critical review will provide insights into the design, synthesis, functionalization, and applications of these artificial molecules in biomedicine and discuss their tailored interactions with biological systems to achieve improved patient health. Further, we provide a survey of the rapidly expanding body of literature on this topic and argue that gold nanotechnology-enabled biomedicine is not simply an act of 'gilding the (nanomedicinal) lily', but that a new 'Golden Age' of biomedical nanotechnology is truly upon us. Moving forward, the most challenging nanoscience ahead of us will be to find new chemical and physical methods of functionalizing gold nanoparticles with compounds that can promote efficient binding, clearance, and biocompatibility and to assess their safety to other biological systems and their long-term term effects on human health and reproduction (472 references).
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Affiliation(s)
- Erik C. Dreaden
- Laser Dynamics Laboratory, Department of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA
| | - Alaaldin M. Alkilany
- Department of Pharmacology and Toxicology, Georgia Health Sciences University, 1459 Laney Walker Blvd., Augusta, GA 30912, USA
| | - Xiaohua Huang
- Department of Chemistry, University of Memphis, 213 Smith Chemistry Bldg, Memphis, TN 38152-3550, USA
| | - Catherine J. Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 South Mathews Avenue, Urbana, IL 61801, USA. E-mail: ; Fax: +1 217 244 3186; Tel: +1 217 333 7680
| | - Mostafa A. El-Sayed
- Laser Dynamics Laboratory, Department of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA
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Das S, Powe AM, Baker GA, Valle B, El-Zahab B, Sintim HO, Lowry M, Fakayode SO, McCarroll ME, Patonay G, Li M, Strongin RM, Geng ML, Warner IM. Molecular Fluorescence, Phosphorescence, and Chemiluminescence Spectrometry. Anal Chem 2011; 84:597-625. [DOI: 10.1021/ac202904n] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Susmita Das
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Aleeta M. Powe
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40208, United States
| | - Gary A. Baker
- Department of Chemistry, University of Missouri−Columbia, Columbia, Missouri 65211-7600, United States
| | - Bertha Valle
- Department of Chemistry, Texas Southern University, Houston, Texas 77004, United States
| | - Bilal El-Zahab
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Herman O. Sintim
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742, United States
| | - Mark Lowry
- Department of Chemistry, Portland State University, Portland, Oregon 97207, United States
| | - Sayo O. Fakayode
- Department of Chemistry, Winston-Salem State University, Winston-Salem, North Carolina 27110, United States
| | - Matthew E. McCarroll
- Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, Illinois 62901-4409, United States
| | - Gabor Patonay
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30302-4098, United States
| | - Min Li
- Process Development Center, Albemarle Corporation, Baton Rouge, Louisiana 70805, United States
| | - Robert M. Strongin
- Department of Chemistry, Portland State University, Portland, Oregon 97207, United States
| | - Maxwell L. Geng
- Department of Chemistry, University of Iowa, Iowa City, Iowa 52242, United States
| | - Isiah M. Warner
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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17
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Loumaigne M, Vasanthakumar P, Richard A, Débarre A. Influence of polarization and wavelength on two-photon excited luminescence of single gold nanospheres. Phys Chem Chem Phys 2011; 13:11597-605. [DOI: 10.1039/c0cp01691h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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