1
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Yang M, Batey JE, Dong B. Automated Five-Dimensional Single Particle Tracking by Bifocal Parallax Dark-Field Microscopy with Electronic Tunable Lens. Anal Chem 2024; 96:1-5. [PMID: 38153091 DOI: 10.1021/acs.analchem.3c04543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
We present a novel method for the precise tracking of plasmonic gold nanorods (AuNRs) in live cells, enabling a comprehensive understanding of the nanocargo's cellular dynamics. Traditional single particle tracking (SPT) struggles with accurately determining all five spatial parameters (x, y, z, ϕ, and θ) in live cells due to various challenges. Our innovation combines electronic tunable lens (ETL) technology with bifocal parallax dark-field (DF) microscopy, allowing continuous adjustment of the imaging focal plane for automatic tracking of both translational and rotational movements of AuNRs. This 5D single-particle orientation and rotational tracking (5D SPORT) method achieves remarkable precision, with 3D localization precisions of 9 (x), 10 (y), and 15 nm (z) and angular resolutions below 2°. To showcase its applicability, we investigated intracellular transport of nanocargos using transferrin-modified AuNRs as the imaging probe. Differentiated transport stages, such as active transport and pause period, were clearly unveiled from the observed dynamics in 5D. This advancement in single particle tracking holds promise for a wide range of applications in biomedical research, particularly when combined with other imaging modalities, such as light sheet fluorescence microscopy.
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Affiliation(s)
- Meek Yang
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - James Ethan Batey
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | - Bin Dong
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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2
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Sowmiya P, Dhas TS, Inbakandan D, Anandakumar N, Nalini S, Suganya KSU, Remya RR, Karthick V, Kumar CMV. Optically active organic and inorganic nanomaterials for biological imaging applications: A review. Micron 2023; 172:103486. [PMID: 37262930 DOI: 10.1016/j.micron.2023.103486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/30/2023] [Accepted: 05/23/2023] [Indexed: 06/03/2023]
Abstract
Recent advancements in the field of nanotechnology have enabled targeted delivery of drug agents in vivo with minimal side effects. The use of nanoparticles for bio-imaging has revolutionized the field of nanomedicine by enabling non-invasive targeting and selective delivery of active drug moieties in vivo. Various inorganic nanomaterials like mesoporous silica nanoparticles, gold nanoparticles, magnetite nanoparticles graphene-based nanomaterials etc., have been created for multimodal therapies with varied multi-imaging modalities. These nanomaterials enable us to overcome the disadvantages of conventional imaging contrast agents (organic dyes) such as lack of stability in vitro and in vivo, high reactivity, low-quantum yield and poor photo stability. Inorganic nanomaterials can be easily fabricated, functionalised and modified as per requirements. Recently, advancements in synthesis techniques, such as the ability to generate molecules and construct supramolecular structures for specific functionalities, have boosted the usage of engineered nanomaterials. Their intrinsic physicochemical properties are unique and they possess excellent biocompatibility. Inorganic nanomaterial research has developed as the most actively booming research fields in biotechnology and biomedicine. Inorganic nanomaterials like gold nanoparticles, magnetic nanoparticles, mesoporous silica nanoparticles, graphene-based nanomaterials and quantum dots have shown excellent use in bioimaging, targeted drug delivery and cancer therapies. Biocompatibility of nanomaterials is an important aspect for the evolution of nanomaterials in the bench to bedside transition. The conduction of thorough and meticulous study for safety and efficacy in well-designed clinical trials is absolutely necessary to determine the functional and structural relationship between the engineered nanomaterial and its toxicity. In this article an attempt is made to throw some light on the current scenario and developments made in the field of nanomaterials in bioimaging.
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Affiliation(s)
- P Sowmiya
- Centre for Ocean Research (DST- FIST Sponsored Centre), MoES-Earth Science and Technology Cell, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - T Stalin Dhas
- Centre for Ocean Research (DST- FIST Sponsored Centre), MoES-Earth Science and Technology Cell, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India.
| | - D Inbakandan
- Centre for Ocean Research (DST- FIST Sponsored Centre), MoES-Earth Science and Technology Cell, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - N Anandakumar
- Department of Education, The Gandhigram Rural Institute, Dindigul 624302, Tamil Nadu, India
| | - S Nalini
- Department of Microbiology, Shree Rahavendra Arts and Science College, Keezhamoongiladi, Chidambaram 608102, Tamil Nadu, India
| | - K S Uma Suganya
- Department of Biotechnology and Biochemical Engineering, Sree Chitra Thirunal College of Engineering, Pappanamcode, Thiruvananthapuram 695018, Kerala, India
| | - R R Remya
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai 600073, Tamil Nadu, India
| | - V Karthick
- Centre for Ocean Research (DST- FIST Sponsored Centre), MoES-Earth Science and Technology Cell, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
| | - C M Vineeth Kumar
- Centre for Ocean Research (DST- FIST Sponsored Centre), MoES-Earth Science and Technology Cell, Sathyabama Institute of Science and Technology, Chennai 600119, Tamil Nadu, India
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3
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Mueller EN, Alina TB, Curry SD, Ganguly S, Cha JN, Goodwin AP. Silica-coated gold nanorods with hydrophobic modification show both enhanced two-photon fluorescence and ultrasound drug release. J Mater Chem B 2022; 10:9789-9793. [PMID: 36420680 DOI: 10.1039/d2tb02197h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Hydrophobically-modified silica-coated gold nanorods are presented here as multifunctional theranostic agents. A single modification both increases two-photon fluorescence and promotes cavitation-based acoustic signal for imaging. A two-fold greater release of small molecule drugs was observed under ultrasound-mediated conditions as compared to passive release without ultrasound.
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Affiliation(s)
- Evan N Mueller
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Talaial B Alina
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Shane D Curry
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Saheli Ganguly
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Jennifer N Cha
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
| | - Andrew P Goodwin
- Department of Chemical and Biological Engineering, University of Colorado, 596 UCB, Boulder, Colorado 80309, USA.
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4
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Craciun AM, Susu L, Baia M. Two-photon excited photoluminescence lifetime imaging studies on individual gelatin-coated gold nanorods. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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5
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Bansal SA, Kumar V, Karimi J, Singh AP, Kumar S. Role of gold nanoparticles in advanced biomedical applications. NANOSCALE ADVANCES 2020; 2:3764-3787. [PMID: 36132791 PMCID: PMC9419294 DOI: 10.1039/d0na00472c] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 07/14/2020] [Indexed: 05/20/2023]
Abstract
Gold nanoparticles (GNPs) have generated keen interest among researchers in recent years due to their excellent physicochemical properties. In general, GNPs are biocompatible, amenable to desired functionalization, non-corroding, and exhibit size and shape dependent optical and electronic properties. These excellent properties of GNPs exhibit their tremendous potential for use in diverse biomedical applications. Herein, we have evaluated the recent advancements of GNPs to highlight their exceptional potential in the biomedical field. Special focus has been given to emerging biomedical applications including bio-imaging, site specific drug/gene delivery, nano-sensing, diagnostics, photon induced therapeutics, and theranostics. We have also elaborated on the basics, presented a historical preview, and discussed the synthesis strategies, functionalization methods, stabilization techniques, and key properties of GNPs. Lastly, we have concluded this article with key findings and unaddressed challenges. Overall, this review is a complete package to understand the importance and achievements of GNPs in the biomedical field.
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Affiliation(s)
- Suneev Anil Bansal
- Department of Mechanical Engineering, University Institute of Engineering and Technology (UIET), Panjab University Chandigarh India 160014
- Department of Mechanical Engineering, MAIT, Maharaja Agrasen University HP India 174103
| | - Vanish Kumar
- National Agri-Food Biotechnology Institute (NABI) S. A. S. Nagar Punjab 140306 India
| | - Javad Karimi
- Department of Biology, Faculty of Sciences, Shiraz University Shiraz 71454 Iran
| | - Amrinder Pal Singh
- Department of Mechanical Engineering, University Institute of Engineering and Technology (UIET), Panjab University Chandigarh India 160014
| | - Suresh Kumar
- Department of Applied Science, University Institute of Engineering and Technology (UIET), Panjab University Chandigarh India 160014
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6
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Singh MR, Persaud PD, Yastrebov S. A study of two-photon florescence in metallic nanoshells. NANOTECHNOLOGY 2020; 31:265203. [PMID: 32197263 DOI: 10.1088/1361-6528/ab81c9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A theory of the two-photon florescence for a metallic nanoshell in the presence of quantum emitters has been developed. The metallic nanoshell is made of a metallic nanosphere as a core and a dielectric material as a shell. An ensemble of quantum emitters is deposited on the surface of the dielectric shell. A probe field is applied to study the two-photon process in the metallic nanoshell. Surface plasmon polaritons are created at the interface between the core and shell due to coupling between probe photons and surface plasmons present at the surface of the metallic nanosphere. The intensity of the surface plasmon polariton field is huge when the probe photon energy is in resonance with the polariton resonance energy. Induced electric dipoles are created in each quantum emitter due to the surface plasmon polariton field and the probe field. Dipoles in quantum emitters interact with each other via the dipole-dipole interaction. The dipole-dipole interaction is calculated using the many-body theory and mean field approximation. It is found that the dipole-dipole interaction has new term which is induced by the surface plasmon polariton field. An analytical expression of the two-photon florescence is derived in the presence the dipole-dipole interaction. Our theory predicts that the intensity of the two-photon florescence is enhanced in the presence of quantum emitters relative to the florescence of the metallic nanoshell in isolation. Physics behind the enhancement is the presence of the dipole-dipole interaction between the ensemble of quantum emitters. It is also found that as the concentration of quantum emitters increases, the dipole-dipole field also increases. This in turn, increases the two-photon florescence as function of the concentration. Finally, we have compared our theory with experiments of a metallic nanoshell which is made for Au nanosphere core and the SiO2 shell. The metallic nanoshell is surrounded by various concentrations of Cadmium-Selenium quantum dots as quantum emitters. A good agreement between theory and experiment is found.
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Affiliation(s)
- Mahi R Singh
- Department of Physics and Astronomy, The University of Western Ontario, London N6A 3K7, Canada. F Ioffe Physical-Technical Institute Laboratory of Electrical and Optical Phenomena in Semiconductors, St Petersburg 194021, Russia
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7
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Nair RV, Nair LV, Govindachar DM, Santhakumar H, Nazeer SS, Rekha CR, Shenoy SJ, Periyasamy G, Jayasree RS. Luminescent Gold Nanorods To Enhance the Near‐Infrared Emission of a Photosensitizer for Targeted Cancer Imaging and Dual Therapy: Experimental and Theoretical Approach. Chemistry 2020; 26:2826-2836. [DOI: 10.1002/chem.201904952] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Resmi V. Nair
- Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram 695012 India
| | - Lakshmi V. Nair
- Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram 695012 India
- Present Address: School of Materials Science & Engineering National Institute of Technology Calicut, Kozhikode 673601 Kerala India
| | | | - Hema Santhakumar
- Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram 695012 India
| | - Shaiju S. Nazeer
- Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram 695012 India
- Present Address: Department of Chemistry University of Alabama at Birmingham Birmingham AL 35205 USA
| | | | - Sachin J. Shenoy
- Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram 695012 India
| | - Ganga Periyasamy
- Department of Chemistry Bangalore University Bangalore 560 056 India
| | - Ramapurath S. Jayasree
- Sree Chitra Tirunal Institute for Medical Sciences and Technology Thiruvananthapuram 695012 India
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8
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Lin H, Fan T, Sui J, Wang G, Chen J, Zhuo S, Zhang H. Recent advances in multiphoton microscopy combined with nanomaterials in the field of disease evolution and clinical applications to liver cancer. NANOSCALE 2019; 11:19619-19635. [PMID: 31599299 DOI: 10.1039/c9nr04902a] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Multiphoton microscopy (MPM) is expected to become a powerful clinical tool, with its unique advantages of being label-free, high resolution, deep imaging depth, low light photobleaching and low phototoxicity. Nanomaterials, with excellent physical and chemical properties, are biocompatible and easy to prepare and functionalize. The addition of nanomaterials exactly compensates for some defects of MPM, such as the weak endogenous signal strength, limited imaging materials, insufficient imaging depth and lack of therapeutic effects. Therefore, combining MPM with nanomaterials is a promising biomedical imaging method. Here, we mainly review the principle of MPM and its application in liver cancer, especially in disease evolution and clinical applications, including monitoring tumor progression, diagnosing tumor occurrence, detecting tumor metastasis, and evaluating cancer therapy response. Then, we introduce the latest advances in the combination of MPM with nanomaterials, including the MPM imaging of gold nanoparticles (AuNPs) and carbon dots (CDs). Finally, we also propose the main challenges and future research directions of MPM technology in HCC.
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Affiliation(s)
- Hongxin Lin
- Fujian Normal University, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fuzhou, 350007, China.
| | - Taojian Fan
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, China.
| | - Jian Sui
- Department of Gastrointestinal surgery, Fujian Provincial Hospital, Fuzhou, 350000, China
| | - Guangxing Wang
- Fujian Normal University, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fuzhou, 350007, China.
| | - Jianxin Chen
- Fujian Normal University, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fuzhou, 350007, China.
| | - Shuangmu Zhuo
- Fujian Normal University, Key Laboratory of OptoElectronic Science and Technology for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fuzhou, 350007, China.
| | - Han Zhang
- Shenzhen Engineering Laboratory of Phosphorene and Optoelectronics and Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, China.
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9
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Busschaert S, Flöry N, Papadopoulos S, Parzefall M, Heeg S, Novotny L. Beam Steering with a Nonlinear Optical Phased Array Antenna. NANO LETTERS 2019; 19:6097-6103. [PMID: 31424948 DOI: 10.1021/acs.nanolett.9b02029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Transition metal dichalcogenides (TMDCs) exhibit high second harmonic (SH) generation in the visible due to their noncentrosymmetric crystal structure in odd-layered form and direct bandgap transition when thinned down to a monolayer. In order to emit the SH radiation into a desired direction, one requires a means to control the phase of the in-plane nonlinear polarization. Here, we couple the SH response of a monolayer MoS2 to an optical phased array antenna and demonstrate controllable steering of the nonlinear emission. By exploiting the intrinsic SH generation by the phased array antenna we achieve uniform emission efficiency into a broad angular range. Our work has relevance for novel optoelectronic applications, such as programmable optical interconnects and on-chip LIDAR.
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Affiliation(s)
| | - Nikolaus Flöry
- Photonics Laboratory , ETH Zürich , 8093 Zürich , Switzerland
| | | | | | - Sebastian Heeg
- Photonics Laboratory , ETH Zürich , 8093 Zürich , Switzerland
| | - Lukas Novotny
- Photonics Laboratory , ETH Zürich , 8093 Zürich , Switzerland
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10
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Zhu Y, Xu H, Wei X, He H. Single-Cell Detection and Photostimulation on a Microfluidic Chip Aided with Gold Nanorods. Cytometry A 2019; 97:39-45. [PMID: 31282093 DOI: 10.1002/cyto.a.23855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/12/2019] [Accepted: 06/19/2019] [Indexed: 01/02/2023]
Abstract
Gold nanorods (GNRs) can be easily designed and synthesized to respond to photons in the near infrared (NIR) band. The photostimulation by laser irradiation can be mediated and enhanced by GNRs to introduce localized damage to cells for photodynamic/photothermal therapy (PDT or PTT). In this study, we show that cells stained with GNRs can be detected and stimulated simultaneously by short flashes of femtosecond-laser irradiation on a microfluidic system effectively. In the relatively high-throughput cell flow, the two-photon luminescence from GNRs can be excited and detected. The GNRs also mediate and enhance the transient photostimulation of the cells. After photostimulation, cells can remain alive, go to apoptosis, or necrosis, respectively. The stimulation effect is strongly dependent on the photon density and stimulation duration. We found the cells remain alive, go to apoptosis or necrosis, dependent on the GNR staining, the laser illumination pattern and duration. Hence, our system provides a simple and effective method for high-throughput cell stimulation and analysis on chip. © 2019 International Society for Advancement of Cytometry.
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Affiliation(s)
- Yujie Zhu
- Department of Dermatology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Hui Xu
- Department of Dermatology, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xunbin Wei
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China.,School of Physics, Foshan University, Foshan, China
| | - Hao He
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
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11
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Morales-Dalmau J, Vilches C, Sanz V, de Miguel I, Rodríguez-Fajardo V, Berto P, Martínez-Lozano M, Casanovas O, Durduran T, Quidant R. Quantification of gold nanoparticle accumulation in tissue by two-photon luminescence microscopy. NANOSCALE 2019; 11:11331-11339. [PMID: 31166337 DOI: 10.1039/c9nr01198f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanomedicine has emerged as a promising strategy to address some of the limitations of traditional biomedical sensing, imaging and therapy modalities. Its applicability and efficacy are, in part, hindered by the difficulty in both controllably delivering nanoparticles to specific regions and accurately monitoring them in tissue. Gold nanoparticles are among the most extensively used inorganic nanoparticles which benefit from high biocompatibility, flexible functionalization, strong and tunable resonant absorption, and production scalability. Moreover, their capability to enhance optical fields at their plasmon resonance enables local boosting of non-linear optical processes, which are otherwise very inefficient. In particular, two-photon induced luminescence (TPL) in gold offers high signal specificity for monitoring gold nanoparticles in a biological environment. In this article, we demonstrate that TPL microscopy provides a robust sub-micron-resolution technique able to quantify accumulated gold nanorods (GNRs) both in cells and in tissues. First, the temporal accumulation of GNRs with two different surface chemistries was measured in 786-O cells during the first 24 hours of incubation, and at different nanoparticle concentrations. Subsequently, GNR accumulation in mice, 6 h and 24 hours after tail vein injection, was quantified by TPL microscopy in biopsied tissue from kidney, spleen, liver and clear cell renal cell carcinoma (ccRCC) tumors, in good agreement with inductively coupled mass spectroscopy. Our data suggest that TPL microscopy stands as a powerful tool to understand and quantify the delivery mechanisms of gold nanoparticles, highly relevant to the development of future theranostic medicines.
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Affiliation(s)
- Jordi Morales-Dalmau
- ICFO - Institut de Ciències Fotòniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels (Barcelona), Spain.
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12
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de Coene Y, Deschaume O, Zhang Y, Billen A, He J, Seré S, Knoppe S, Van Cleuvenbergen S, Verbiest T, Clays K, Ye J, Bartic C. Enhancement of Nonlinear Optical Scattering by Gold Nanoparticles through Aggregation-Induced Plasmon Coupling in the Near-Infrared. Chemphyschem 2019; 20:1765-1774. [PMID: 31020783 DOI: 10.1002/cphc.201900194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/02/2019] [Indexed: 11/08/2022]
Abstract
Gold nanoparticles (AuNPs) are regarded as promising building blocks in functional nanomaterials for sensing, drug delivery and catalysis. One remarkable property of these particles is the localized surface plasmon resonance (LSPR), which gives rise to augmented optical properties through local field enhancement. LSPR also influences the nonlinear optical properties of metal NPs (MNPs) making them potentially interesting candidates for fast, high resolution nonlinear optical imaging. In this work we characterize and discuss the wavelength dependence of the hyper-Rayleigh scattering (HRS) behavior of spherical gold nanoparticles (GNP) and gold nanorods (GNR) in solution, from 850 nm up to 1300 nm, covering the near-infrared (NIR) window relevant for deep tissue imaging. The high-resolution spectral data allows discriminating between HRS and two photon photoluminescence contributions. Upon particle aggregation, we measured very large enhancements (ca. 104 ) of the HRS intensity in the NIR, which is explained by considering aggregation-induced plasmon coupling effects and local field enhancement. These results indicate that purposely designed coupled nanostructures could prove advantageous for nonlinear optical imaging and biosensing applications.
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Affiliation(s)
- Yovan de Coene
- Department of Physics and Astronomy, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Olivier Deschaume
- Department of Physics and Astronomy, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Yuqing Zhang
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, P.R. China, 200030
| | - Arne Billen
- Department of Chemistry, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Jing He
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, P.R. China, 200030
| | - Stephanie Seré
- Department of Physics and Astronomy, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Stefan Knoppe
- Institute for Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | | | - Thierry Verbiest
- Department of Chemistry, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Koen Clays
- Department of Chemistry, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
| | - Jian Ye
- School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai, P.R. China, 200030
| | - Carmen Bartic
- Department of Physics and Astronomy, University of Leuven, Celestijnenlaan 200D, 3001, Leuven, Belgium
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13
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Hlapisi N, Motaung TE, Linganiso LZ, Oluwafemi OS, Songca SP. Encapsulation of Gold Nanorods with Porphyrins for the Potential Treatment of Cancer and Bacterial Diseases: A Critical Review. Bioinorg Chem Appl 2019; 2019:7147128. [PMID: 31182957 PMCID: PMC6515112 DOI: 10.1155/2019/7147128] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 02/04/2019] [Indexed: 01/23/2023] Open
Abstract
Cancer and bacterial diseases have been the most incidental diseases to date. According to the World Health Report 2018, at least every family is affected by cancer around the world. In 2012, 14.1 million people were affected by cancer, and that figure is bound to increase to 21.6 million in 2030. Medicine therefore sorts out ways of treatment using conventional methods which have been proven to have many side effects. Researchers developed photothermal and photodynamic methods to treat both cancer and bacterial diseases. These methods pose fewer effects on the biological systems but still no perfect method has been synthesized. The review serves to explore porphyrin and gold nanorods to be used in the treatment of cancer and bacterial diseases: porphyrins as photosensitizers and gold nanorods as delivery agents. In addition, the review delves into ways of incorporating photothermal and photodynamic therapy aimed at producing a less toxic, more efficacious, and specific compound for the treatment.
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Affiliation(s)
- Nthabeleng Hlapisi
- Department of Chemistry, University of Zululand, X1001, KwaDlangezwa, KwaZulu-Natal, South Africa
| | - Tshwafo E. Motaung
- Department of Chemistry, University of Zululand, X1001, KwaDlangezwa, KwaZulu-Natal, South Africa
| | - Linda Z. Linganiso
- Department of Chemistry, University of Zululand, X1001, KwaDlangezwa, KwaZulu-Natal, South Africa
| | - Oluwatobi S. Oluwafemi
- Department of Applied Chemistry, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa
- Centre for Nanomaterials Science Research, University of Johannesburg, Johannesburg, South Africa
| | - Sandile P. Songca
- Department of Chemistry, University of Kwazulu Natal, Kwazulu Natal, South Africa
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14
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Liu Y, Liu K, Yang M, Han Y, Zhang Q, Conde J, Yang Y, Alfranca G, Wang Y, Ma L, Zhang Y, Song J, Pan Y, Ni J, Cui D. Gastric Parietal Cell and Intestinal Goblet Cell Secretion: a Novel Cell-Mediated In Vivo Metal Nanoparticle Metabolic Pathway Enhanced with Diarrhea Via Chinese Herbs. NANOSCALE RESEARCH LETTERS 2019; 14:79. [PMID: 30838476 PMCID: PMC6401067 DOI: 10.1186/s11671-019-2908-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 02/21/2019] [Indexed: 06/09/2023]
Abstract
Up to date, the way in which metal nanoparticles are cleared in vivo has yet to be elucidated well. Herein, we report a novel intestinal goblet cell-mediated in vivo clearance pathway to remove metal nanoparticles. Typical metal nanoparticles such as triangular silver nanoplates, magnetic nanoparticles, gold nanorods, and gold nanoclusters were selected as representative examples. These metal nanoparticles were prepared, characterized, and injected via tail vein into a mice model with common bile duct (CBD) ligation. The feces and urines were collected for 7 days to be followed by the sacrifice of the mice and collection of the intestinal and gastric tissues for further analysis. The results showed that all four selected metal nanoparticles were located inside the goblet cells (GCs) of the whole intestinal tissue and were excreted into the gut lumen through the secretion of intestinal GC. Moreover, triangular silver nanoplates and gold nanorods were located inside the gastric parietal cells (PCs). Importantly, nanoparticles did not cause obvious pathological changes in intestinal tissues. In this study, we confirmed that the blood corpuscles are involved in the GCs secretion pathway. Furthermore, we found that the secretion of nanoparticles from intestinal GCs and PCs is accelerated by diarrhea induced via Chinese herbs. In conclusion, metal nanoparticles such as triangular silver nanoplates, magnetic nanoparticles, gold nanorods, and gold nanoclusters can be cleaned away by intestinal GCs and PCs. This novel pathway of in vivo clearance of metal nanoparticles has a great potential for future applications such as new drug design and development, nanoparticle-based labeling and in vivo tracking, and biosafety evaluation of in vivo nanoparticles.
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Affiliation(s)
- Yanlei Liu
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Kunlu Liu
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850 People’s Republic of China
| | - Meng Yang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Yue Han
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Qian Zhang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - João Conde
- School of Engineering and Materials Science, Queen Mary University of London, London, UK
| | - Yuming Yang
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Gabriel Alfranca
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Yuxia Wang
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850 People’s Republic of China
| | - Lijun Ma
- Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111 Xianxia Road, Shanghai, 200336 People’s Republic of China
- National Center for Translational Medicine, Collaborative Innovational Center for System Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Yingge Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Beijing, 100850 People’s Republic of China
| | - Jie Song
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Yunxiang Pan
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Jian Ni
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
- National Center for Translational Medicine, Collaborative Innovational Center for System Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
| | - Daxiang Cui
- Institute of Nano Biomedicine and Engineering, Shanghai Engineering Research Center for Intelligent Instrument for Diagnosis and Therapy, Thin Film and Microfabrication Key Laboratory of Ministry of Education, Department of Instrument Science and Engineering, School of Electronic Information and Electronical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
- National Center for Translational Medicine, Collaborative Innovational Center for System Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240 People’s Republic of China
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15
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Ji J, Moquin A, Bertorelle F, KY Chang P, Antoine R, Luo J, McKinney RA, Maysinger D. Organotypic and primary neural cultures as models to assess effects of different gold nanostructures on glia and neurons. Nanotoxicology 2019; 13:285-304. [DOI: 10.1080/17435390.2018.1543468] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jeff Ji
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Canada
| | - Alexandre Moquin
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Canada
| | - Franck Bertorelle
- CNRS, Institut Lumière Matière, Université Lyon Université Claude Bernard Lyon 1, Lyon, France
| | - Philip KY Chang
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Canada
| | - Rodolphe Antoine
- CNRS, Institut Lumière Matière, Université Lyon Université Claude Bernard Lyon 1, Lyon, France
| | - Julia Luo
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Canada
| | - R. Anne McKinney
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Canada
| | - Dusica Maysinger
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Canada
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16
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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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17
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Suarasan S, Licarete E, Astilean S, Craciun AM. Probing cellular uptake and tracking of differently shaped gelatin-coated gold nanoparticles inside of ovarian cancer cells by two-photon excited photoluminescence analyzed by fluorescence lifetime imaging (FLIM). Colloids Surf B Biointerfaces 2018; 166:135-143. [PMID: 29558704 DOI: 10.1016/j.colsurfb.2018.03.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/26/2018] [Accepted: 03/13/2018] [Indexed: 12/18/2022]
Abstract
Nowadays, the non-linear optical effect of two-photon excited (TPE) fluorescence has recently grown in interest in recent years over other optical imaging method, due to improved 3D spatial resolution, deep penetrability and less photodamage of living organism owing to the excitation in near-infrared region (NIR). In parallel, gold nanoparticles (AuNPs) have gain considerable attention for NIR TPE bio-imaging applications due to their appealing ability to generate strong intrinsic photoluminescence (PL). Here, we demonstrate the capability of differently shaped gelatin-coated AuNPs to perform as reliable label-free contrast agents for the non-invasive NIR imaging of NIH:OVCAR-3 ovary cancer cells via TPE Fluorescence Lifetime Imaging Microscopy (FLIM). Examination of the spectroscopic profile of the intrinsic signals exhibited by AuNPs inside cells confirm the plasmonic nature of the emitted PL, while the evaluation of time-dependent profile of the TPE PL signal under continuous irradiation indicates the photo-stability of the signal revealing simultaneously a photo-blinking behavior. Finally, we assess the dependence of the TPE PL signal on laser excitation power and wavelength in view of contributing to a better understanding of plasmonic TPE PL in biological media towards the improvement of TPE FLIM imaging applications based on AuNPs.
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Affiliation(s)
- Sorina Suarasan
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271, Cluj-Napoca, Romania
| | - Emilia Licarete
- Molecular Biology Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271, Cluj-Napoca, Romania
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271, Cluj-Napoca, Romania; Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, M. Kogalniceanu 1, 400084, Cluj-Napoca, Romania
| | - Ana-Maria Craciun
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, T. Laurian 42, 400271, Cluj-Napoca, Romania.
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18
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Rodríguez-Fajardo V, Sanz V, de Miguel I, Berthelot J, Aćimović SS, Porcar-Guezenec R, Quidant R. Two-color dark-field (TCDF) microscopy for metal nanoparticle imaging inside cells. NANOSCALE 2018; 10:4019-4027. [PMID: 29431802 DOI: 10.1039/c7nr09408f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Noble metal nanoparticles (NPs) supporting localized surface plasmon resonances are widely used in the context of biotechnology as optical and absorption contrast agents with great potential applicability to both diagnostics and less invasive therapies. In this framework, it is crucial to have access to simple and reliable microscopy techniques to monitor the NPs that have internalized into cells. While dark field (DF) microscopy takes advantage of the enhanced NP scattering at their plasmon resonance, its use in cells is limited by the large scattering background from the internal cell compartments. Here, we report on a novel two-color dark field microscopy that addresses these limitations by significantly reducing the cell scattering contribution. We first present the technique and demonstrate its enhanced contrast, specificity and reliability for NP detection compared to a standard optical dark field. We then demonstrate its potential suitability in two different settings, namely wide-field parallel screening of circulating cells in microfluidic chips and high-resolution tracking of internalized NPs in cells. These proof of principle experiments show a promising capability of this approach with possible extension to other kinds of targeted systems like bacteria and vesicles.
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Affiliation(s)
- Valeria Rodríguez-Fajardo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.
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19
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Park JH, Park J, Kim S, Kim SH, Lee TG, Lee JY, Wi JS. Characterization and application of porous gold nanoparticles as 2-photon luminescence imaging agents: 20-fold brighter than gold nanorods. JOURNAL OF BIOPHOTONICS 2018; 11:e201700174. [PMID: 28976643 DOI: 10.1002/jbio.201700174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 09/14/2017] [Accepted: 09/28/2017] [Indexed: 06/07/2023]
Abstract
Two-photon nonlinear microscopy with the aid of plasmonic contrast agents is an attractive bioimaging technique capable of generating high-resolution images in 3 dimensions and facilitating targeted imaging with deep tissue penetration. In this work, physically synthesized gold nanoparticles containing multiple nanopores are used as 2-photon contrast agents and are reported to emit a 20-fold brighter 2-photon luminescence as compared to typical contrast agents, that is, gold nanorods. A successful application of our porous gold nanoparticles is experimentally demonstrated by in vitro nonlinear optical imaging of adipocytes at subcellular level.
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Affiliation(s)
- Joo H Park
- Center for Optical Metrology, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
| | - Jisoo Park
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
| | - Suho Kim
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
| | - Se-Hwa Kim
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
| | - Tae G Lee
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
| | - Jae Y Lee
- Center for Optical Metrology, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
| | - Jung-Sub Wi
- Center for Nano-Bio Measurement, Korea Research Institute of Standards and Science, Daejeon, Republic of Korea
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20
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Nair RV, Santhakumar H, Jayasree RS. Gold nanorods decorated with a cancer drug for multimodal imaging and therapy. Faraday Discuss 2018; 207:423-435. [PMID: 29355869 DOI: 10.1039/c7fd00185a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cancer, a condition with uncontrolled cell division, is the second leading cause of death worldwide. The currently available techniques for the imaging and treatment of cancer have their own limitations and hence a combination of more than one modality is expected to increase the efficacy of both diagnosis and treatment. In the present study, we have developed a multimodal imaging and therapeutic system by incorporating a chemotherapeutic drug, mitoxantrone (MTX) onto PEG coated gold nanorods (GNR). Strong absorption in the near-infrared (NIR) and visible regions qualifies GNR as an efficient photothermal (PTT) agent upon irradiation with either a NIR or visible laser. Additionally, the enhanced electric field of GNR makes it a suitable substrate for surface enhanced Raman scattering (SERS). Modification of GNR with amino PEG offers biocompatibility without affecting its optical property. In order to achieve tumor specificity, GNR-PEG was conjugated with tumor specific marker that can target cancer cells, leaving the normal cells unaffected. The incorporation of fluorescent chemotherapeutic drug mitoxantrone onto GNR-PEG facilitates chemotherapy as well as fluorescence imaging. The therapeutic efficacy of the developed GNR based system is tracked using fluorescence imaging and Raman imaging. The careful design of the system also facilitates the controlled release of the drug by photothermal triggering. Likewise, the imaging modality could be chosen as either Raman or fluorescence to monitor drug release in accordance with irradiation. The physico-chemical properties, and drug release profiles under different physiological conditions have been well studied. Finally, the developed system was tested for its therapeutic efficacy using cancer cells, in vitro. The receptor mediated cell uptake was more effective in folate receptor over-expressing cancer cells than in the normal and low-expressing cells. Accordingly the percentage of cell death was higher in folate receptor over-expressing cancer cells, which was further enhanced due to the effect of the dual therapeutic approach. The cell uptake and treatment efficacy was monitored using fluorescence microscopy and SERS. In conclusion, the developed GNR-PEG-MTX system is found to be an efficient multimodal therapeutic agent against cancer which could be tracked using two different techniques.
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Affiliation(s)
- Resmi V Nair
- Division of Biophotonics and Imaging, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Biomedical Technology Wing, Trivandrum 695012, India.
| | - Hema Santhakumar
- Division of Biophotonics and Imaging, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Biomedical Technology Wing, Trivandrum 695012, India.
| | - Ramapurath S Jayasree
- Division of Biophotonics and Imaging, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Biomedical Technology Wing, Trivandrum 695012, India.
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21
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Centi S, Ratto F, Tatini F, Lai S, Pini R. Ready-to-use protein G-conjugated gold nanorods for biosensing and biomedical applications. J Nanobiotechnology 2018; 16:5. [PMID: 29351815 PMCID: PMC5775603 DOI: 10.1186/s12951-017-0329-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/16/2017] [Indexed: 01/05/2023] Open
Abstract
BACKGROUND Gold nanorods (GNRs) display unique capacity to absorb and scatter near infrared light, which arises from their peculiar composition of surface plasmon resonances. For this reason, GNRs have become an innovative material of great hope in nanomedicine, in particular for imaging and therapy of cancer, as well as in photonic sensing of biological agents and toxic compounds for e.g. biomedical diagnostics, forensic analysis and environmental monitoring. As the use of GNRs is becoming more and more popular, in all these contexts, there is emerging a latent need for simple and versatile protocols for their modification with targeting units that may convey high specificity for any analyte of interest of an end-user. RESULTS We introduce protein G-coated GNRs as a versatile solution for the oriented immobilization of antibodies in a single step of mixing. We assess this strategy against more standard covalent binding of antibodies, in terms of biocompatibility and efficiency of molecular recognition in buffer, serum and plasma, in the context of the development of a direct immunoenzymatic assay. In both cases, we estimate an average of around 30 events of molecular recognition per particle. In addition, we disclose a convenient protocol to store these particles for months in a freezer, without any detrimental effect. CONCLUSIONS The biocompatibility and efficiency of molecular recognition is similar in either case of GNRs that are modified with antibodies by covalent binding or oriented immobilization through protein G. However, protein G-coated GNRs are most attractive for an end-user, owing to their unique versatility and ease of bioconjugation with antibodies of her/his choice.
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Affiliation(s)
- S. Centi
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - F. Ratto
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - F. Tatini
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - S. Lai
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - R. Pini
- Institute of Applied Physics, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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22
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Small DM, Jones JS, Tendler II, Miller PE, Ghetti A, Nishimura N. Label-free imaging of atherosclerotic plaques using third-harmonic generation microscopy. BIOMEDICAL OPTICS EXPRESS 2018; 9:214-229. [PMID: 29359098 PMCID: PMC5772576 DOI: 10.1364/boe.9.000214] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 11/24/2017] [Accepted: 12/02/2017] [Indexed: 05/18/2023]
Abstract
Multiphoton microscopy using laser sources in the mid-infrared range (MIR, 1,300 nm and 1,700 nm) was used to image atherosclerotic plaques from murine and human samples. Third harmonic generation (THG) from atherosclerotic plaques revealed morphological details of cellular and extracellular lipid deposits. Simultaneous nonlinear optical signals from the same laser source, including second harmonic generation and endogenous fluorescence, resulted in label-free images of various layers within the diseased vessel wall. The THG signal adds an endogenous contrast mechanism with a practical degree of specificity for atherosclerotic plaques that complements current nonlinear optical methods for the investigation of cardiovascular disease. Our use of whole-mount tissue and backward scattered epi-detection suggests THG could potentially be used in the future as a clinical tool.
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Affiliation(s)
- David M. Small
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
- Contributed equally
| | - Jason S. Jones
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
- Contributed equally
| | - Irwin I. Tendler
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
| | - Paul E. Miller
- Anabios Corporation, 3030 Bunker Hill St., San Diego, CA 92109, USA
| | - Andre Ghetti
- Anabios Corporation, 3030 Bunker Hill St., San Diego, CA 92109, USA
| | - Nozomi Nishimura
- Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, 526 N. Campus Rd., Ithaca, NY 14853, USA
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23
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Roloff L, Klemm P, Gronwald I, Huber R, Lupton JM, Bange S. Light Emission from Gold Nanoparticles under Ultrafast Near-Infrared Excitation: Thermal Radiation, Inelastic Light Scattering, or Multiphoton Luminescence? NANO LETTERS 2017; 17:7914-7919. [PMID: 29182344 DOI: 10.1021/acs.nanolett.7b04266] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Gold nanoparticles emit broad-band upconverted luminescence upon irradiation with pulsed infrared laser radiation. Although the phenomenon is widely observed, considerable disagreement still exists concerning the underlying physics, most notably over the applicability of concepts such as multiphoton absorption, inelastic scattering, and interband vs intraband electronic transitions. Here, we study single particles and small clusters of particles by employing a spectrally resolved power-law analysis of the irradiation-dependent emission as a sensitive probe of these physical models. Two regimes of emission are identified. At low irradiance levels of kW/cm2, the emission follows a well-defined integer-exponent power law suggestive of a multiphoton process. However, at higher irradiance levels of several kW/cm2, the nonlinearity exponent itself depends on the photon energy detected, a tell-tale signature of a radiating heated electron gas. We show that in this regime, the experiments are incompatible with both interband transitions and inelastic light scattering as the cause of the luminescence, whereas they are compatible with the notion of luminescence linked to intraband transitions.
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Affiliation(s)
- Lukas Roloff
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg , 93051 Regensburg, Germany
| | - Philippe Klemm
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg , 93051 Regensburg, Germany
| | - Imke Gronwald
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg , 93051 Regensburg, Germany
| | - Rupert Huber
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg , 93051 Regensburg, Germany
| | - John M Lupton
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg , 93051 Regensburg, Germany
| | - Sebastian Bange
- Institut für Experimentelle und Angewandte Physik, Universität Regensburg , 93051 Regensburg, Germany
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24
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Zhuo GY, Su HC, Wang HY, Chan MC. In situ high-resolution thermal microscopy on integrated circuits. OPTICS EXPRESS 2017; 25:21548-21558. [PMID: 29041452 DOI: 10.1364/oe.25.021548] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/23/2017] [Indexed: 06/07/2023]
Abstract
The miniaturization of metal tracks in integrated circuits (ICs) can cause abnormal heat dissipation, resulting in electrostatic discharge, overvoltage breakdown, and other unwanted issues. Unfortunately, locating areas of abnormal heat dissipation is limited either by the spatial resolution or imaging acquisition speed of current thermal analytical techniques. A rapid, non-contact approach to the thermal imaging of ICs with sub-μm resolution could help to alleviate this issue. In this work, based on the intensity of the temperature-dependent two-photon fluorescence (TPF) of Rhodamine 6G (R6G) material, we developed a novel fast and non-invasive thermal microscopy with a sub-μm resolution. Its application to the location of hotspots that may evolve into thermally induced defects in ICs was also demonstrated. To the best of our knowledge, this is the first study to present high-resolution 2D thermal microscopic images of ICs, showing the generation, propagation, and distribution of heat during its operation. According to the demonstrated results, this scheme has considerable potential for future in situ hotspot analysis during the optimization stage of IC development.
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25
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Chen H, Gratton E, Digman MA. Self-assisted optothermal trapping of gold nanorods under two-photon excitation. Methods Appl Fluoresc 2016; 4:035003. [PMID: 28355163 DOI: 10.1088/2050-6120/4/3/035003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
We report a self-assisted optothermal trapping and patterning of gold nanorods (GNRs) on glass surfaces with a femtosecond laser. We show that GNRs are not only the trapping targets, but also can enhance the optothermal trapping of other particles. This trapping phenomenon is the net result of thermophoresis and a convective flow caused by localized heating. The heating is due to the conversion of absorbed photons into heat at GNR's longitudinal surface plasmon resonance (LSPR) wavelength. First, we investigated the optothermal trapping of GNRs at their LSPR wavelength on the glass surface with as low as 0.5 mW laser power. The trapping range was observed to be larger than a typical field of view, e.g. 210 µm × 210 µm here. Second, by adjusting the distance between the laser focus and the glass surface, ring patterns of GNRs on the glass surface were obtained. These patterns could be controlled by the laser power and the numerical aperture of the microscope objective. Moreover, we examined the spectral emission of GNRs under different trapping conditions using the spectral phasor approach to reveal the temperature and association status of GNRs. Our study will help understanding manipulation of flows in solution and in biological systems that can be applied in future investigations of GNR-induced heating and flows.
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Affiliation(s)
- Hongtao Chen
- Department of Biomedical Engineering, Laboratory for Fluorescence Dynamics, University of California, Irvine, CA, USA
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Turcheniuk K, Turcheniuk V, Hage CH, Dumych T, Bilyy R, Bouckaert J, Héliot L, Zaitsev V, Boukherroub R, Szunerits S. Highly effective photodynamic inactivation of E. coli using gold nanorods/SiO2 core-shell nanostructures with embedded verteporfin. Chem Commun (Camb) 2016; 51:16365-8. [PMID: 26403761 DOI: 10.1039/c5cc06738c] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The potential of gold nanorods post-coated with a 20 nm silica shell loaded with verteporfin (Au NRs@SiO2-VP) as efficient near-infrared nanostructures for photodynamic therapy under continuous wave and pulsed-mode excitation to eradicate a virulent strain of E. coli associated with urinary tract infection is described.
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Affiliation(s)
- Kostiantyn Turcheniuk
- Institute d'Electronique, de Microélectronique et de Nanotechnologie (IEMN, UMR CNRS 8520), Université Lille 1, Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
| | - Volodymyr Turcheniuk
- Institute d'Electronique, de Microélectronique et de Nanotechnologie (IEMN, UMR CNRS 8520), Université Lille 1, Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France. and Taras Shevchenko University, 60 Vladimirskaya str., Kiev, Ukraine
| | - Charles-Henri Hage
- Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM), Université Lille 1, CNRS UMR 8523, 59655 Villeneuve d'Ascq, France
| | - Tetiana Dumych
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), Université Lille 1, CNRS UMR 8576, 59655 Villeneuve d'Ascq, France
| | - Rostyslav Bilyy
- Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Julie Bouckaert
- Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), Université Lille 1, CNRS UMR 8576, 59655 Villeneuve d'Ascq, France
| | - Laurent Héliot
- Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM), Université Lille 1, CNRS UMR 8523, 59655 Villeneuve d'Ascq, France
| | - Vladimir Zaitsev
- Taras Shevchenko University, 60 Vladimirskaya str., Kiev, Ukraine and Chemistry Department, Pontifical Catholic University of Rio de Janeiro, Rua Marques de Sao Vicente, 225-Gavea, Rio de Janeiro, 22451-900, Brazil
| | - Rabah Boukherroub
- Institute d'Electronique, de Microélectronique et de Nanotechnologie (IEMN, UMR CNRS 8520), Université Lille 1, Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
| | - Sabine Szunerits
- Institute d'Electronique, de Microélectronique et de Nanotechnologie (IEMN, UMR CNRS 8520), Université Lille 1, Avenue Poincaré, BP 60069, 59652 Villeneuve d'Ascq, France.
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27
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Pang B, Yang X, Xia Y. Putting gold nanocages to work for optical imaging, controlled release and cancer theranostics. Nanomedicine (Lond) 2016; 11:1715-28. [PMID: 27348546 PMCID: PMC5827786 DOI: 10.2217/nnm-2016-0109] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 05/03/2016] [Indexed: 01/02/2023] Open
Abstract
Gold nanocages are hollow nanostructures with ultrathin, porous walls. They are bio-inert and their surface can be readily modified with functional groups to specifically interact with the biological system of interest. They have remarkable optical properties, including localized surface plasmon resonance peaks tunable to the near-infrared region, strong absorption and scattering, as well as two- and three-photon luminescence. With the establishment of robust protocols for both synthesis and surface functionalization, Au nanocages have been extensively explored for various biomedical applications. In this review, we begin with a brief account of the synthesis and properties of Au nanocages, and then highlight some of the recent developments in applying them to an array of biomedical applications related to optical imaging, controlled release and cancer theranostics.
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Affiliation(s)
- Bo Pang
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA 30332, USA
- Department of Biomedical Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Xuan Yang
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA 30332, USA
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, GA 30332, USA
- School of Chemistry & Biochemistry, School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
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28
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Hou R, Shynkar V, Lafargue C, Kolkowski R, Zyss J, Lagugné-Labarthet F. Second harmonic generation from gold meta-molecules with three-fold symmetry. Phys Chem Chem Phys 2016; 18:7956-65. [DOI: 10.1039/c6cp00154h] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Polarization dependence SHG measurements reveal four-lobe patterns which can be assigned to structures with three-fold symmetry.
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Affiliation(s)
- Renjie Hou
- Department of Chemistry
- Department of Physics and Astronomy
- The University of Western Ontario
- London
- Canada
| | - Vasyl Shynkar
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | - Clément Lafargue
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
| | - Radoslaw Kolkowski
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
- Advanced Materials Engineering and Modelling Group
| | - Joseph Zyss
- Laboratory of Quantum and Molecular Photonics
- Institut d'Alembert, Ecole Normale Supérieure de Cachan
- 94230 Cachan
- France
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29
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Wang T, McElroy A, Halaney D, Vela D, Fung E, Hossain S, Phipps J, Wang B, Yin B, Feldman MD, Milner TE. Detection of plaque structure and composition using OCT combined with two-photon luminescence (TPL) imaging. Lasers Surg Med 2015; 47:485-94. [PMID: 26018531 DOI: 10.1002/lsm.22366] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/05/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND OBJECTIVES Atherosclerosis and plaque rupture leads to myocardial infarction and stroke. A novel hybrid optical coherence tomography (OCT) and two-photon luminescence (TPL) fiber-based imaging system was developed to characterize tissue constituents in the context of plaque morphology. STUDY DESIGN/MATERIALS AND METHODS Ex vivo coronary arteries (34 regions of interest) from three human hearts with atherosclerotic plaques were examined by OCT-TPL imaging. Histological sections (4 μm in thickness) were stained with Oil Red O for lipid, Von Kossa for calcium, and Verhoeff-Masson Tri-Elastic for collagen/elastin fibers and compared with imaging results. RESULTS Biochemical components in plaques including lipid, oxidized-LDL, and calcium, as well as a non-tissue component (metal) are distinguished by multi-channel TPL images with statistical significance (P < 0.001). TPL imaging provides complementary optical contrast to OCT (two-photon absorption/emission vs scattering). Merged OCT-TPL images demonstrate the distribution of lipid deposits in registration with detailed plaque surface profile. CONCLUSIONS Results suggest that multi-channel TPL imaging can effectively identify lipid sub-types and different plaque components. Furthermore, fiber-based hybrid OCT-TPL imaging simultaneously detects plaque structure and composition, improving the efficacy of vulnerable plaque detection and characterization.
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Affiliation(s)
- Tianyi Wang
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
| | - Austin McElroy
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
| | - David Halaney
- Division of Cardiology, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas.,South Texas Veterans Health Care System, San Antonio, Texas
| | | | - Edmund Fung
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
| | - Shafat Hossain
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
| | - Jennifer Phipps
- Division of Cardiology, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas
| | - Bingqing Wang
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
| | - Biwei Yin
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
| | - Marc D Feldman
- Division of Cardiology, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas.,South Texas Veterans Health Care System, San Antonio, Texas
| | - Thomas E Milner
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas
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30
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Wang T, McElroy A, Halaney D, Vela D, Fung E, Hossain S, Phipps J, Wang B, Yin B, Feldman MD, Milner TE. Dual-modality fiber-based OCT-TPL imaging system for simultaneous microstructural and molecular analysis of atherosclerotic plaques. BIOMEDICAL OPTICS EXPRESS 2015; 6:1665-78. [PMID: 26137371 PMCID: PMC4467709 DOI: 10.1364/boe.6.001665] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 02/17/2015] [Accepted: 02/17/2015] [Indexed: 05/25/2023]
Abstract
New optical imaging techniques that provide contrast to study both the anatomy and composition of atherosclerotic plaques can be utilized to better understand the formation, progression and clinical complications of human coronary artery disease. We present a dual-modality fiber-based optical imaging system for simultaneous microstructural and molecular analysis of atherosclerotic plaques that combines optical coherence tomography (OCT) and two-photon luminescence (TPL) imaging. Experimental results from ex vivo human coronary arteries show that OCT and TPL optical contrast in recorded OCT-TPL images is complimentary and in agreement with histological analysis. Molecular composition (e.g., lipid and oxidized-LDL) detected by TPL imaging can be overlaid onto plaque microstructure depicted by OCT, providing new opportunities for atherosclerotic plaque identification and characterization.
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Affiliation(s)
- Tianyi Wang
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
| | - Austin McElroy
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
| | - David Halaney
- Division of Cardiology, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas 78229, USA ; South Texas Veterans Health Care System, San Antonio, Texas 78229, USA
| | - Deborah Vela
- Texas Heart Institute, Houston, Texas 77030, USA
| | - Edmund Fung
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
| | - Shafat Hossain
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
| | - Jennifer Phipps
- Division of Cardiology, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas 78229, USA
| | - Bingqing Wang
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
| | - Biwei Yin
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
| | - Marc D Feldman
- Division of Cardiology, University of Texas Health Science Center, 7703 Floyd Curl Drive, San Antonio, Texas 78229, USA ; South Texas Veterans Health Care System, San Antonio, Texas 78229, USA
| | - Thomas E Milner
- Department of Biomedical Engineering, University of Texas at Austin, 1 University Station C0800, Austin, Texas 78712, USA
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31
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Chen H, Gratton E, Digman MA. Spectral properties and dynamics of gold nanorods revealed by EMCCD-based spectral phasor method. Microsc Res Tech 2015; 78:283-93. [PMID: 25684346 PMCID: PMC4404027 DOI: 10.1002/jemt.22473] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 01/17/2015] [Indexed: 11/12/2022]
Abstract
Gold nanorods (NRs) with tunable plasmon-resonant absorption in the near-infrared region have considerable advantages over organic fluorophores as imaging agents due to their brightness and lack of photobleaching. However, the luminescence spectral properties of NRs have not been fully characterized at the single particle level due to lack of proper analytic tools. Here, we present a spectral phasor analysis method that allows investigations of NRs' spectra at single particle level showing the spectral variance and providing spatial information during imaging. The broad phasor distribution obtained by the spectral phasor analysis indicates that spectra of NRs are different from particle to particle. NRs with different spectra can be identified in images with high spectral resolution. The spectral behaviors of NRs under different imaging conditions, for example, different excitation powers and wavelengths, were revealed by our laser-scanning multiphoton microscope using a high-resolution spectrograph with imaging capability. Our results prove that the spectral phasor method is an easy and efficient tool in hyper-spectral imaging analysis to unravel subtle changes of the emission spectrum. We applied this method to study the spectral dynamics of NRs during direct optical trapping and by optothermal trapping. Interestingly, different spectral shifts were observed in both trapping phenomena.
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Affiliation(s)
- Hongtao Chen
- Laboratory for Fluorescence Dynamics, Department of Biomedical Engineering, University of California, Irvine
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32
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Degradable polymer-coated gold nanoparticles for co-delivery of DNA and siRNA. Acta Biomater 2015; 11:393-403. [PMID: 25246314 DOI: 10.1016/j.actbio.2014.09.020] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 08/20/2014] [Accepted: 09/12/2014] [Indexed: 11/22/2022]
Abstract
Gold nanoparticles have utility for in vitro, ex vivo and in vivo imaging applications as well as for serving as a scaffold for therapeutic delivery and theranostic applications. Starting with gold nanoparticles as a core, layer-by-layer degradable polymer coatings enable the simultaneous co-delivery of DNA and short interfering RNA (siRNA). To engineer release kinetics, polymers which degrade through two different mechanisms can be utilized to construct hybrid inorganic/polymeric particles. During fabrication of the nanoparticles, the zeta potential reverses upon the addition of each oppositely charged polyelectrolyte layer and the final nanoparticle size reaches approximately 200nm in diameter. When the hybrid gold/polymer/nucleic acid nanoparticles are added to human primary brain cancer cells in vitro, they are internalizable by cells and reach the cytoplasm and nucleus as visualized by transmission electron microscopy and observed through exogenous gene expression. This nanoparticle delivery leads to both exogenous DNA expression and siRNA-mediated knockdown, with the knockdown efficacy superior to that of Lipofectamine® 2000, a commercially available transfection reagent. These gold/polymer/nucleic acid hybrid nanoparticles are an enabling theranostic platform technology capable of delivering combinations of genetic therapies to human cells.
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33
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Li K, Wang Y, Cai F, Yu J, Wang S, Zhu Z, Chu L, Zhang H, Qian J, He S. Nonlinear optical properties of Au/Ag alloyed nanoboxes and their applications in both in vitro and in vivo bioimaging under long-wavelength femtosecond laser excitation. RSC Adv 2015. [DOI: 10.1039/c4ra10752g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We synthesize Au/Ag alloyed nanoboxes (ANBs) with different LSPR (localized surface plasmon resonance) peak wavelengths and observe their various nonlinear optical properties.
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34
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Peng Y, Xiong B, Peng L, Li H, He Y, Yeung ES. Recent advances in optical imaging with anisotropic plasmonic nanoparticles. Anal Chem 2014; 87:200-15. [PMID: 25375954 DOI: 10.1021/ac504061p] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yinhe Peng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University , Changsha, Hunan 410082, P. R. China
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35
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Tucker-Schwartz JM, Beavers KR, Sit WW, Shah AT, Duvall CL, Skala MC. In vivo imaging of nanoparticle delivery and tumor microvasculature with multimodal optical coherence tomography. BIOMEDICAL OPTICS EXPRESS 2014; 5:1731-43. [PMID: 24940536 PMCID: PMC4052907 DOI: 10.1364/boe.5.001731] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 05/03/2023]
Abstract
Current imaging techniques capable of tracking nanoparticles in vivo supply either a large field of view or cellular resolution, but not both. Here, we demonstrate a multimodality imaging platform of optical coherence tomography (OCT) techniques for high resolution, wide field of view in vivo imaging of nanoparticles. This platform includes the first in vivo images of nanoparticle pharmacokinetics acquired with photothermal OCT (PTOCT), along with overlaying images of microvascular and tissue morphology. Gold nanorods (51.8 ± 8.1 nm by 15.2 ± 3.3 nm) were intravenously injected into mice, and their accumulation into mammary tumors was non-invasively imaged in vivo in three dimensions over 24 hours using PTOCT. Spatial frequency analysis of PTOCT images indicated that gold nanorods reached peak distribution throughout the tumors by 16 hours, and remained well-dispersed up to 24 hours post-injection. In contrast, the overall accumulation of gold nanorods within the tumors peaked around 16 hours post-injection. The accumulation of gold nanorods within the tumors was validated post-mortem with multiphoton microscopy. This shows the utility of PTOCT as part of a powerful multimodality imaging platform for the development of nanomedicines and drug delivery technologies.
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Affiliation(s)
| | - Kelsey R. Beavers
- Interdisciplinary Graduate Program in Materials Science, Vanderbilt University, Nashville, TN 37235, USA
| | - Wesley W. Sit
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Amy T. Shah
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Craig L. Duvall
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Melissa C. Skala
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
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36
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Merlen A, Lagugné-Labarthet F. Imaging the optical near field in plasmonic nanostructures. APPLIED SPECTROSCOPY 2014; 68:1307-1326. [PMID: 25479143 DOI: 10.1366/14-07699] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Over the past five years, new developments in the field of plasmonics have emerged with the goal of finely tuning a variety of metallic nanostructures to enable a desired function. The use of plasmonics in spectroscopy is of course of great interest, due to large local enhancements in the optical near field confined in the vicinity of a metal nanostructure. For a given metal, such enhancements are dependent on the shape of the structure as well as the optical properties (wavelength, phase, polarization) of the impinging light, offering a large degree of control over the optical and spatial localization of the plasmon resonance. In this focal point, we highlight recent work that aims at revealing the spatial position of the localized plasmon resonances using a variety of optical and non-optical methods.
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Affiliation(s)
- Alexandre Merlen
- Institut Matériaux Microélectronique Nanosciences De Provence (Im2np) Umr Cnrs 7334 And Universités D'aix-Marseille Et De Toulon, France
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