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Vu T, Klippel P, Canning AJ, Ma C, Zhang H, Kasatkina LA, Tang Y, Xia J, Verkhusha VV, Vo-Dinh T, Jing Y, Yao J. On the Importance of Low-Frequency Signals in Functional and Molecular Photoacoustic Computed Tomography. IEEE TRANSACTIONS ON MEDICAL IMAGING 2024; 43:771-783. [PMID: 37773898 PMCID: PMC10932611 DOI: 10.1109/tmi.2023.3320668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
In photoacoustic computed tomography (PACT) with short-pulsed laser excitation, wideband acoustic signals are generated in biological tissues with frequencies related to the effective shapes and sizes of the optically absorbing targets. Low-frequency photoacoustic signal components correspond to slowly varying spatial features and are often omitted during imaging due to the limited detection bandwidth of the ultrasound transducer, or during image reconstruction as undesired background that degrades image contrast. Here we demonstrate that low-frequency photoacoustic signals, in fact, contain functional and molecular information, and can be used to enhance structural visibility, improve quantitative accuracy, and reduce spare-sampling artifacts. We provide an in-depth theoretical analysis of low-frequency signals in PACT, and experimentally evaluate their impact on several representative PACT applications, such as mapping temperature in photothermal treatment, measuring blood oxygenation in a hypoxia challenge, and detecting photoswitchable molecular probes in deep organs. Our results strongly suggest that low-frequency signals are important for functional and molecular PACT.
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2
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Vu T, Klippel P, Canning AJ, Ma C, Zhang H, Kasatkina LA, Tang Y, Xia J, Verkhusha VV, Vo-Dinh T, Jing Y, Yao J. On the importance of low-frequency signals in functional and molecular photoacoustic computed tomography. ARXIV 2023:arXiv:2308.00870v1. [PMID: 37576129 PMCID: PMC10418541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
In photoacoustic computed tomography (PACT) with short-pulsed laser excitation, wideband acoustic signals are generated in biological tissues with frequencies related to the effective shapes and sizes of the optically absorbing targets. Low-frequency photoacoustic signal components correspond to slowly varying spatial features and are often omitted during imaging due to the limited detection bandwidth of the ultrasound transducer, or during image reconstruction as undesired background that degrades image contrast. Here we demonstrate that low-frequency photoacoustic signals, in fact, contain functional and molecular information, and can be used to enhance structural visibility, improve quantitative accuracy, and reduce spare-sampling artifacts. We provide an in-depth theoretical analysis of low-frequency signals in PACT, and experimentally evaluate their impact on several representative PACT applications, such as mapping temperature in photothermal treatment, measuring blood oxygenation in a hypoxia challenge, and detecting photoswitchable molecular probes in deep organs. Our results strongly suggest that low-frequency signals are important for functional and molecular PACT.
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Affiliation(s)
- Tri Vu
- Photoacoustic Imaging Laboratory, Duke University, Durham, NC 27708 USA
| | - Paul Klippel
- Graduate Program in Acoustics, Penn State University, University Park, PA 16802
| | - Aidan J Canning
- Department of Biomedical Engineering, Department of Chemistry, and Fitzpatrick Institute of Photonics, Duke University, Durham, NC 27708
| | - Chenshuo Ma
- Photoacoustic Imaging Laboratory, Duke University, Durham, NC 27708 USA
| | - Huijuan Zhang
- Department of Biomedical Engineering, State University of New York, Buffalo, NY 14260
| | - Ludmila A Kasatkina
- Department of Genetics and Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Yuqi Tang
- Photoacoustic Imaging Laboratory, Duke University, Durham, NC 27708 USA
| | - Jun Xia
- Department of Biomedical Engineering, State University of New York, Buffalo, NY 14260
| | - Vladislav V Verkhusha
- Department of Genetics and Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Tuan Vo-Dinh
- Department of Biomedical Engineering, Department of Chemistry, and Fitzpatrick Institute of Photonics, Duke University, Durham, NC 27708
| | - Yun Jing
- Graduate Program in Acoustics, Penn State University, University Park, PA 16802
| | - Junjie Yao
- Photoacoustic Imaging Laboratory, Duke University, Durham, NC 27708 USA
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3
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Veresko M, Cheng MC. Physics-informed reduced-order learning from the first principles for simulation of quantum nanostructures. Sci Rep 2023; 13:6197. [PMID: 37062799 PMCID: PMC10106468 DOI: 10.1038/s41598-023-33330-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 04/11/2023] [Indexed: 04/18/2023] Open
Abstract
Multi-dimensional direct numerical simulation (DNS) of the Schrödinger equation is needed for design and analysis of quantum nanostructures that offer numerous applications in biology, medicine, materials, electronic/photonic devices, etc. In large-scale nanostructures, extensive computational effort needed in DNS may become prohibitive due to the high degrees of freedom (DoF). This study employs a physics-based reduced-order learning algorithm, enabled by the first principles, for simulation of the Schrödinger equation to achieve high accuracy and efficiency. The proposed simulation methodology is applied to investigate two quantum-dot structures; one operates under external electric field, and the other is influenced by internal potential variation with periodic boundary conditions. The former is similar to typical operations of nanoelectronic devices, and the latter is of interest to simulation and design of nanostructures and materials, such as applications of density functional theory. In each structure, cases within and beyond training conditions are examined. Using the proposed methodology, a very accurate prediction can be realized with a reduction in the DoF by more than 3 orders of magnitude and in the computational time by 2 orders, compared to DNS. An accurate prediction beyond the training conditions, including higher external field and larger internal potential in untrained quantum states, is also achieved. Comparison is also carried out between the physics-based learning and Fourier-based plane-wave approaches for a periodic case.
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Affiliation(s)
- Martin Veresko
- Department of Electrical and Computer Engineering, Clarkson University, Potsdam, NY, 13699-5720, USA
| | - Ming-Cheng Cheng
- Department of Electrical and Computer Engineering, Clarkson University, Potsdam, NY, 13699-5720, USA.
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4
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Parmigiani M, Albini B, Pellegrini G, Genovesi M, De Vita L, Pallavicini P, Dacarro G, Galinetto P, Taglietti A. Surface-Enhanced Raman Spectroscopy Chips Based on Silver Coated Gold Nanostars. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12203609. [PMID: 36296798 PMCID: PMC9609606 DOI: 10.3390/nano12203609] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/12/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is becoming widely used as an analytical tool, and the search for stable and highly responsive SERS substrates able to give ultralow detection of pollutants is a current challenge. In this paper we boosted the SERS response of Gold nanostars (GNS) demonstrating that their coating with a layer of silver having a proper thickness produces a 7-fold increase in SERS signals. Glass supported monolayers of these GNS@Ag were then prepared using simple alcoxyliane chemistry, yielding efficient and reproducible SERS chips, which were tested for the detection of molecules representative of different classes of pollutants. Among them, norfloxacin was detected down to 3 ppb, which is one of the lowest limits of detection obtained with this technique for the analyte.
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Affiliation(s)
- Miriam Parmigiani
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Benedetta Albini
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | | | - Marco Genovesi
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Lorenzo De Vita
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | | | - Giacomo Dacarro
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Pietro Galinetto
- Department of Physics, University of Pavia, Via Bassi 6, 27100 Pavia, Italy
| | - Angelo Taglietti
- Department of Chemistry, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
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5
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Candreva A, Parisi F, Bartucci R, Guzzi R, Di Maio G, Scarpelli F, Aiello I, Godbert N, La Deda M. Synthesis and Characterization of Hyper‐Branched Nanoparticles with Magnetic and Plasmonic Properties. ChemistrySelect 2022. [DOI: 10.1002/slct.202201375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Angela Candreva
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
| | - Francesco Parisi
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Rosa Bartucci
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- Department of Physics Molecular Biophysics Laboratory University of Calabria 87036 Rende CS Italy
| | - Rita Guzzi
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
- Department of Physics Molecular Biophysics Laboratory University of Calabria 87036 Rende CS Italy
| | - Giuseppe Di Maio
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Francesca Scarpelli
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Iolinda Aiello
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
| | - Nicolas Godbert
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
| | - Massimo La Deda
- Department of Chemistry and Chemical Technologies University of Calabria 87036 Rende CS Italy
- CNR-NANOTEC Istituto di Nanotecnologia U.O.S Cosenza (CS) 87036 Rende Italy
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6
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Rahman A, Goswami T, Tyagi N, Ghosh HN, Neelakandan PP. Hot Electron Migration from Gold Nanoparticle to an Organic Molecule Enhances Luminescence and Photosensitization Properties of a pH Activatable Plasmon-Molecule Coupled Nanocomposite. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Miao Y, Boutelle RC, Blake A, Chandrasekaran V, Sheehan CJ, Hollingsworth J, Neuhauser D, Weiss S. Super-resolution Imaging of Plasmonic Near-Fields: Overcoming Emitter Mislocalizations. J Phys Chem Lett 2022; 13:4520-4529. [PMID: 35576273 PMCID: PMC9150090 DOI: 10.1021/acs.jpclett.1c04123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 04/21/2022] [Indexed: 06/15/2023]
Abstract
Plasmonic nano-objects have shown great potential in enhancing applications like biological/chemical sensing, light harvesting and energy transfer, and optical/quantum computing. Therefore, an extensive effort has been vested in optimizing plasmonic systems and exploiting their field enhancement properties. Super-resolution imaging with quantum dots (QDs) is a promising method to probe plasmonic near-fields but is hindered by the distortion of the QD radiation pattern. Here, we investigate the interaction between QDs and "L-shaped" gold nanoantennas and demonstrate both theoretically and experimentally that this strong interaction can induce polarization-dependent modifications to the apparent QD emission intensity, polarization, and localization. Based on FDTD simulations and polarization-modulated single-molecule microscopy, we show that the displacement of the emitter's localization is due to the position-dependent interference between the emitter and the induced dipole, and can be up to 100 nm. Our results help pave a pathway for higher precision plasmonic near-field mapping and its underlying applications.
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Affiliation(s)
- Yuting Miao
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Robert C. Boutelle
- National
Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, Maryland 20899, United States
| | - Anastasia Blake
- Los
Alamos National Laboratory, Casa Grande Drive, Los Alamos, New Mexico 87544, United States
| | | | - Chris J. Sheehan
- Los
Alamos National Laboratory, Casa Grande Drive, Los Alamos, New Mexico 87544, United States
| | - Jennifer Hollingsworth
- Los
Alamos National Laboratory, Casa Grande Drive, Los Alamos, New Mexico 87544, United States
| | - Daniel Neuhauser
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
| | - Shimon Weiss
- Department
of Chemistry and Biochemistry, University
of California, Los Angeles, California 90095, United States
- Department
of Physiology, University of California, Los Angeles, California 90095, United States
- California
NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Department
of Physics, Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel
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8
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Ray P, Lodha T, Biswas A, Sau TK, Ramana CV. Particle specific physical and chemical effects on antibacterial activities: A comparative study involving gold nanostars, nanorods and nanospheres. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.127915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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9
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Gwak J, Park SJ, Choi HY, Lee JH, Jeong KJ, Lee D, Tran VT, Son KS, Lee J. Plasmonic Enhancement of Chiroptical Property in Enantiomers Using a Helical Array of Magnetoplasmonic Nanoparticles for Ultrasensitive Chiral Recognition. ACS APPLIED MATERIALS & INTERFACES 2021; 13:46886-46893. [PMID: 34570473 DOI: 10.1021/acsami.1c14047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Recognition of enantiomeric molecules is essential in pharmaceutical and biomedical applications. In this Article, a novel approach is introduced to monitor chiral molecules via a helical magnetic field (hB), where chiral-inactive magnetoplasmonic nanoparticles (MagPlas NPs, Ag@Fe3O4 core-shell NPs) are assembled into helical nanochain structures to be chiral-active. An in-house generator of hB-induced chiral NP assembly, that is, a plasmonic chirality enhancer (PCE), is newly fabricated to enhance the circular dichroism (CD) signals from chiral plasmonic interaction of the helical nanochain assembly with circularly polarized light, reaching a limit of detection (LOD) of 10-10 M, a 1000-fold enhancement as compared to that of conventional CD spectrometry. These enhancements were successfully observed from enantiomeric molecules, oligomers, polymers, and drugs. Computational simulation studies also proved that total chiroptical properties of helical plasmonic chains could be readily changed by modifying the chiral structure of the analytes. The proposed PCE has the potential to be used as an advanced tool for qualitative and quantitative recognition of chiral materials, enabling further application in pharmaceutical and biomedical sensing and imaging.
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Affiliation(s)
- Juyong Gwak
- Department of Biomaterials Science, Pusan National University, Miryang 50463, Republic of Korea
- Department of Chemistry Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Se Jeong Park
- Department of Chemistry Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Hwa Young Choi
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ji Hoon Lee
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ki-Jae Jeong
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing 100190, People's Republic of China
| | - Dongkyu Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46279, Republic of Korea
- Diagnostics Platform Research Section, Electronics and Telecommunications Research Institute (ETRI), 218 Gajeong-ro, Yuseong-gu, Daejeon 34129, Korea
| | - Van Tan Tran
- Department of Chemistry Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
| | - Kyung-Sun Son
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jaebeom Lee
- Department of Chemistry Engineering and Applied Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
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10
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Peng X, Kotnala A, Rajeeva BB, Wang M, Yao K, Bhatt N, Penley D, Zheng Y. Plasmonic Nanotweezers and Nanosensors for Point-of-Care Applications. ADVANCED OPTICAL MATERIALS 2021; 9:2100050. [PMID: 34434691 PMCID: PMC8382230 DOI: 10.1002/adom.202100050] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Indexed: 05/12/2023]
Abstract
The capabilities of manipulating and analyzing biological cells, bacteria, viruses, DNAs, and proteins at high resolution are significant in understanding biology and enabling early disease diagnosis. We discuss progress in developments and applications of plasmonic nanotweezers and nanosensors where the plasmon-enhanced light-matter interactions at the nanoscale improve the optical manipulation and analysis of biological objects. Selected examples are presented to illustrate their design and working principles. In the context of plasmofluidics, which merges plasmonics and fluidics, the integration of plasmonic nanotweezers and nanosensors with microfluidic systems for point-of-care (POC) applications is envisioned. We provide our perspectives on the challenges and opportunities in further developing and applying the plasmofluidic POC devices.
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Affiliation(s)
- Xiaolei Peng
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Abhay Kotnala
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Bharath Bangalore Rajeeva
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Mingsong Wang
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Kan Yao
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
| | - Neel Bhatt
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Daniel Penley
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Yuebing Zheng
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
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11
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Gao Q, Zhang J, Gao J, Zhang Z, Zhu H, Wang D. Gold Nanoparticles in Cancer Theranostics. Front Bioeng Biotechnol 2021; 9:647905. [PMID: 33928072 PMCID: PMC8076689 DOI: 10.3389/fbioe.2021.647905] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 03/04/2021] [Indexed: 12/15/2022] Open
Abstract
Conventional cancer treatments, such as surgical resection, radiotherapy, and chemotherapy, have achieved significant progress in cancer therapy. Nevertheless, some limitations (such as toxic side effects) are still existing for conventional therapies, which motivate efforts toward developing novel theranostic avenues. Owning many merits such as easy surface modification, unique optical properties, and high biocompatibility, gold nanoparticles (AuNPs and GNPs) have been engineered to serve as targeted delivery vehicles, molecular probes, sensors, and so on. Their small size and surface characteristics enable them to extravasate and access the tumor microenvironment (TME), which is a promising solution to realize highly effective treatments. Moreover, stimuli-responsive properties (respond to hypoxia and acidic pH) of nanoparticles to TME enable GNPs’ unrivaled control for effective transport of therapeutic cargos. In this review article, we primarily introduce the basic properties of GNPs, further discuss the recent progress in gold nanoparticles for cancer theranostics, with an additional concern about TME stimuli-responsive studies.
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Affiliation(s)
- Qinyue Gao
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jingjing Zhang
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Jie Gao
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Zhengyang Zhang
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Haitao Zhu
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Dongqing Wang
- Department of Radiology, Affiliated Hospital of Jiangsu University, Zhenjiang, China
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12
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Tang Y, Kuzume A, Yamamoto K. Structural Effect of Polyvinylpyrrolidone-stabilized Au Nanostars for SERS Application. CHEM LETT 2021. [DOI: 10.1246/cl.200720] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuansen Tang
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Akiyoshi Kuzume
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
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13
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Vo-Dinh T. The New Frontier in Medicine at the Convergence of Nanotechnology and Immunotherapy. Bioanalysis 2021. [DOI: 10.1007/978-3-030-78338-9_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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14
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Vo-Dinh T, Inman BA, Maccarini P, Palmer GM, Liu Y, Etienne W. Plasmonic Gold Nanostars for Immuno Photothermal Nanotherapy to Treat Cancers and Induce Long-Term Immunity. Bioanalysis 2021. [DOI: 10.1007/978-3-030-78338-9_8] [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] Open
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15
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Mousavi SM, Zarei M, Hashemi SA, Ramakrishna S, Chiang WH, Lai CW, Gholami A. Gold nanostars-diagnosis, bioimaging and biomedical applications. Drug Metab Rev 2020; 52:299-318. [PMID: 32150480 DOI: 10.1080/03602532.2020.1734021] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gold Nanostars (GNS) have attracted tremendous attention toward themselves owing to their multi-branched structure and unique properties. These state of the art metallic nanoparticles possess intrinsic features like remarkable optical properties and exceptional physiochemical activities. These star-shaped gold nanoparticles can predominantly be utilized in biosensing, photothermal therapy, imaging, surface-enhanced Raman spectroscopy and target drug delivery applications due to their low toxicity and extraordinary optical features. In the current review, recent approaches in the matter of GNS in case of diagnosis, bioimaging and biomedical applications were summarized and reported. In this regard, first an overview about the structure and general properties of GNS were reported and thence detailed information regarding the diagnostic, bioimaging, photothermal therapy, and drug delivery applications of such novel nanomaterials were presented in detail. Summarized information clearly highlighting the superior capability of GNS as potential multi-functional materials for biomedical applications.
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Affiliation(s)
- Seyyed Mojtaba Mousavi
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Maryam Zarei
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Seyyed Alireza Hashemi
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore, Singapore
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, Center for Nanofibers and Nanotechnology, National University of Singapore, Singapore, Singapore
| | - Wei-Hung Chiang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Chin Wei Lai
- Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur, Malaysia
| | - Ahmad Gholami
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Pharmaceutical research Center, Shiraz University of Medical Science, Shiraz, Iran
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16
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Hong Y, Li Y, Huang L, He W, Wang S, Wang C, Zhou G, Chen Y, Zhou X, Huang Y, Huang W, Gong T, Zhou Z. Label-free diagnosis for colorectal cancer through coffee ring-assisted surface-enhanced Raman spectroscopy on blood serum. JOURNAL OF BIOPHOTONICS 2020; 13:e201960176. [PMID: 31909563 DOI: 10.1002/jbio.201960176] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/10/2019] [Accepted: 12/27/2019] [Indexed: 02/05/2023]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is garnering considerable attention for the swift diagnosis of pathogens and abnormal biological status, that is, cancers. In this work, a simple, fast and inexpensive optical sensing platform is developed by the design of SERS sampling and data analysis. The pretreatment of spectral measurement employed gold nanoparticle colloid mixing with the serum from patients with colorectal cancer (CRC). The droplet of particle-serum mixture formed coffee-ring-like region at the rim, providing strong and stable SERS profiles. The obtained spectra from cancer patients and healthy volunteers were analyzed by unsupervised principal component analysis (PCA) and supervised machine learning model, such as support-vector machine (SVM), respectively. The results demonstrate that the SVM model provides the superior performance in the classification of CRC diagnosis compared with PCA. In addition, the values of carcinoembryonic antigen from the blood samples were compiled with the corresponding SERS spectra for SVM calculation, yielding improved prediction results.
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Affiliation(s)
- Yan Hong
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Yongqiang Li
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Libin Huang
- Department of Gastrointestinal Surgery, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
| | - Wei He
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Shouxu Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Chong Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Guoyun Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuanming Chen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Xin Zhou
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, China
| | - Yifeng Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronics Science and Technology of China, Chengdu, China
| | - Wen Huang
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronics Science and Technology of China, Chengdu, China
| | - Tianxun Gong
- State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronics Science and Technology of China, Chengdu, China
| | - Zongguang Zhou
- Department of Gastrointestinal Surgery, West China Hospital and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, China
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17
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Locke A, Belsare S, Deutz N, Coté G. Aptamer-switching optical bioassay for citrulline detection at the point-of-care. JOURNAL OF BIOMEDICAL OPTICS 2019; 24:1-6. [PMID: 31820595 PMCID: PMC7006037 DOI: 10.1117/1.jbo.24.12.127002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Accepted: 11/15/2019] [Indexed: 05/27/2023]
Abstract
Researchers have found that decreased levels of circulating citrulline could be an indicator of intestinal failure. Typically, this amino acid, which is produced by the intestinal mucosa cells, circulates in the blood at a physiological level of ∼40 μM. The current methodology for measuring this level involves the use of bulky equipment, such as mass spectroscopy and analysis at a central laboratory, which can delay diagnosis. Therefore, the current detection method is unsuited for routine monitoring at a doctor's office. Our research group proposes the development of a point-of-care (POC) device to overcome this issue. The proposed device utilizes surface-enhanced Raman spectroscopy (SERS) coupled with a specifically designed aptamer, capable of binding to citrulline, conjugated to colloidal gold nanoparticles. The assay is then embedded within a vertical flow paper-fluidic platform as a deliverable at the POC, and a handheld Raman spectrometer (638-nm excitation) was used to interrogate the sample. Results showed good dynamic range and specificity with an average 73% decrease in SERS signal intensity with increasing concentrations of citrulline (0 to 50 μM) in phosphate-buffered saline compared to its controls: glycine, glutamine, histidine, and valine, which showed less than 10% average decrease in the presence of 200 μM of each analyte. Further, the limit of detection (LOD) within a chip was determined to be 0.56 μM, whereas the LOD across chips was below 10 μM.
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Affiliation(s)
- Andrea Locke
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station Center for Remote Health Technologies and Systems, Department of Biomedical Engineering, College Station, Texas, United States
| | - Sayali Belsare
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
| | - Nicolaas Deutz
- Texas A&M University, Center for Translational Research in Aging and Longevity, Department of Health and Kinesiology, College Station, Texas, United States
| | - Gerard Coté
- Texas A&M University, Department of Biomedical Engineering, College Station, Texas, United States
- Texas A&M Engineering Experiment Station Center for Remote Health Technologies and Systems, Department of Biomedical Engineering, College Station, Texas, United States
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18
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Ou J, Zhou Z, Chen Z, Tan H. Optical Diagnostic Based on Functionalized Gold Nanoparticles. Int J Mol Sci 2019; 20:E4346. [PMID: 31491861 PMCID: PMC6770972 DOI: 10.3390/ijms20184346] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/02/2019] [Accepted: 09/03/2019] [Indexed: 12/19/2022] Open
Abstract
Au nanoparticles (NPs) possess unique physicochemical and optical properties, showing great potential in biomedical applications. Diagnostic spectroscopy utilizing varied Au NPs has become a precision tool of in vitro and in vivo diagnostic for cancer and other specific diseases. In this review, we tried to comprehensively introduce the remarkable optical properties of Au NPs, including localized surfaces plasmon resonance (LSPR), surface-enhanced Raman scattering (SERS), and metal-enhanced fluorescence (MEF). Then, we highlighted the excellent works using Au NPs for optical diagnostic applications. Ultimately, the challenges and future perspective of using Au NPs for optical diagnostic were discussed.
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Affiliation(s)
- Jiemei Ou
- School of Traditional Chinese Medicine Resources, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zidan Zhou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zhong Chen
- Instrumentation and Service Center for Physical Sciences, School of Science, Westlake University, 18 Shilongshan Road, Xihu District, Hangzhou 310064, China.
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
| | - Huijun Tan
- School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.
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19
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You YH, Biswas A, Nagaraja AT, Hwang JH, Coté GL, McShane MJ. Multidomain-Based Responsive Materials with Dual-Mode Optical Readouts. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14286-14295. [PMID: 30908908 DOI: 10.1021/acsami.8b21861] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Responsive materials designed to generate signals for both surface-enhanced Raman spectroscopy (SERS) and phosphorescence lifetime-"dual-mode"-measurements are described. To demonstrate this concept, we incorporated pH-sensitive and oxygen-sensitive microdomains into a single hydrogel that could be interrogated via SERS and phosphorescence lifetime, respectively. Microdomains consisted two populations of discrete microcapsules containing either (1) gold nanoparticles capped with pH-sensitive Raman molecules or (2) oxygen-sensitive benzoporphyrin phosphors. While the microdomain-embedded hydrogels presented an expected background luminescence, the pH-sensitive SERS signal was distinguishable for all tested conditions. Response characteristics of the dual sensor showed no significant difference when compared to standalone single-mode pH and oxygen sensors. In addition, the feasibility of redundant multimode sensing was proven by observing the reaction produced by glucose oxidase chemically cross-linked within the corresponding alginate matrix. Each optical mode showed a signal change proportional to glucose concentration with an opposite signal directionality. These results support the promise of micro-/nanocomposite materials to improve measurement accuracy using intrinsic multimode responses and built-in redundancy, concepts that have broad appeal in the chemical sensing and biosensing fields.
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Affiliation(s)
| | | | | | - Jin-Ha Hwang
- Department of Materials Science and Engineering , Hongik University , 121-791 Seoul , South Korea
| | - Gerard L Coté
- Center for Remote Health Technologies & Systems , Texas A&M Engineering Experiment Station , College Station , Texas 77840 , United States
| | - Michael J McShane
- Center for Remote Health Technologies & Systems , Texas A&M Engineering Experiment Station , College Station , Texas 77840 , United States
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20
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Crawford BM, Strobbia P, Wang HN, Zentella R, Boyanov MI, Pei ZM, Sun TP, Kemner KM, Vo-Dinh T. Plasmonic Nanoprobes for in Vivo Multimodal Sensing and Bioimaging of MicroRNA within Plants. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7743-7754. [PMID: 30694650 DOI: 10.1021/acsami.8b19977] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Monitoring gene expression within whole plants is critical for many applications ranging from plant biology to agricultural biotechnology and biofuel development; however, no method currently exists for in vivo monitoring of genomic targets in plant systems without requiring sample extraction. Herein, we report a unique multimodal method based on plasmonic nanoprobes capable of in vivo imaging and biosensing of microRNA biotargets within whole plant leaves by integrating three different and complementary techniques: surface-enhanced Raman scattering (SERS), X-ray fluorescence (XRF), and plasmonics-enhanced two-photon luminescence (TPL). The method developed uses plasmonic nanostars, which not only provide large Raman signal enhancement but also allow for localization and quantification by XRF and plasmonics-enhanced TPL, owing to gold content and high two-photon luminescence cross sections. Our method uses inverse molecular sentinel nanoprobes for SERS bioimaging of microRNA within Arabidopsis thaliana leaves to provide a dynamic SERS map of detected microRNA targets while also quantifying nanoprobe concentrations using XRF and TPL. The nanoprobes were observed to occupy the intercellular spaces upon infiltration into the leaf tissues. This report lays the foundation for the use of plasmonic nanoprobes for in vivo functional imaging of nucleic acid biotargets in whole plants, a tool that will revolutionize bioengineering research by allowing the study of these biotargets with previously unmet spatial and temporal resolution, 200 μm and 30 min, respectively.
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Affiliation(s)
| | | | | | | | - Maxim I Boyanov
- Bulgarian Academy of Sciences , Institute of Chemical Engineering , Sofia 1113 , Bulgaria
- Biosciences Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
| | | | | | - Kenneth M Kemner
- Biosciences Division , Argonne National Laboratory , Argonne , Illinois 60439 , United States
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21
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Strobbia P, Sadler T, Odion RA, Vo-Dinh T. SERS in Plain Sight: A Polarization Modulation Method for Signal Extraction. Anal Chem 2019; 91:3319-3326. [PMID: 30676724 DOI: 10.1021/acs.analchem.8b04360] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Surface-enhanced Raman spectroscopy (SERS) is a powerful analytical spectroscopy offering advantages ranging from "vibrational fingerprints" to multiplexed detection. However, the use of this technique in real-world applications has been limited due to difficulties in detecting inherently weak Raman signals often embedded in strong interfering background signals. A variety of plasmonics-active platforms have been developed to increase Raman signals but are not sufficient to extract weak SERS signals from intense interfering background signals. Herein, we describe a practical method, referred to as polarization modulation-SERS (PM-SERS), which utilizes the polarization dependence of anisotropic SERS-active nanostructures to modulate the plasmonic effect to extract SERS signals and remove background. The modulation is obtained by switching the polarization of the excitation source at a specific frequency involving addition of only few optical components such as liquid crystal polarizers to a typical Raman setup. In this work, we characterized the polarization-dependent response of the SERS substrates fabricated using the oblique angle evaporation (OAV) technique and their response under laser excitation using a polarization modulated source. We demonstrated that the PM-SERS method can extract the analyte weak SERS signals from the strong interfering background signal in different situations, involving a fluorescent sample and a strong background light, and we show the possibility of using PM-SERS at a quasi-real time rate (0.5 Hz). We believe that the PM-SERS method will help expand the translation of applications that utilize SERS-substrates to real-world settings.
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Affiliation(s)
- Pietro Strobbia
- Fitzpatrick Institute for Photonics , Duke University , Durham , North Carolina 27708 , United States.,Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708 , United States
| | - Tyjair Sadler
- Fitzpatrick Institute for Photonics , Duke University , Durham , North Carolina 27708 , United States.,Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
| | - Ren A Odion
- Fitzpatrick Institute for Photonics , Duke University , Durham , North Carolina 27708 , United States.,Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708 , United States
| | - Tuan Vo-Dinh
- Fitzpatrick Institute for Photonics , Duke University , Durham , North Carolina 27708 , United States.,Department of Biomedical Engineering , Duke University , Durham , North Carolina 27708 , United States.,Department of Chemistry , Duke University , Durham , North Carolina 27708 , United States
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22
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Zhu H, Lussier F, Ducrot C, Bourque MJ, Spatz JP, Cui W, Yu L, Peng W, Trudeau LÉ, Bazuin CG, Masson JF. Block Copolymer Brush Layer-Templated Gold Nanoparticles on Nanofibers for Surface-Enhanced Raman Scattering Optophysiology. ACS APPLIED MATERIALS & INTERFACES 2019; 11:4373-4384. [PMID: 30615826 DOI: 10.1021/acsami.8b19161] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A nanothin block copolymer (BCP) brush-layer film adsorbed on glass nanofibers is shown to address the long-standing challenge of forming a template for the deposition of dense and well-dispersed nanoparticles on highly curved surfaces, allowing the development of an improved nanosensor for neurotransmitters. We employed a polystyrene- block-poly(4-vinylpyridine) BCP and plasmonic gold nanoparticles (AuNPs) of 52 nm in diameter for the fabrication of the nanosensor on pulled fibers with diameters down to 200 nm. The method is simple, using only solution processes and a plasma cleaning step. The templating of the AuNPs on the nanofiber surprisingly gave rise to more than 1 order of magnitude improvement in the surface-enhanced Raman scattering (SERS) performance for 4-mercaptobenzoic acid compared to the same AuNPs aggregated on identical fibers without the use of a template. We hypothesize that a wavelength-scale lens formed by the nanofiber contributes to enhancing the SERS performance to the extent that it can melt the glass nanofiber under moderate laser power. We then show the capability of this nanosensor to detect the corelease of the neurotransmitters dopamine and glutamate from living mouse brain dopaminergic neurons with a sensitivity 1 order of magnitude greater than with aggregated AuNPs. The simplicity of fabrication and the far superior performance of the BCP-templated nanofiber demonstrates the potential of this method to efficiently pattern nanoparticles on highly curved surfaces and its application as molecular nanosensors for cell physiology.
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Affiliation(s)
| | | | | | | | - Joachim P Spatz
- Department of Cellular Biophysics , Max Planck Institute for Medical Research , Jahnstrasse 29 , D-69120 Heidelberg , Germany
- Department of Biophysical Chemistry , University of Heidelberg , INF 253 , D-69120 Heidelberg , Germany
| | - Wenli Cui
- Department of Physics and Optoelectronic Engineering , Dalian University of Technology , Dalian 116024 , China
| | - Li Yu
- Department of Physics and Optoelectronic Engineering , Dalian University of Technology , Dalian 116024 , China
| | - Wei Peng
- Department of Physics and Optoelectronic Engineering , Dalian University of Technology , Dalian 116024 , China
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23
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Song C, Li F, Guo X, Chen W, Dong C, Zhang J, Zhang J, Wang L. Gold nanostars for cancer cell-targeted SERS-imaging and NIR light-triggered plasmonic photothermal therapy (PPTT) in the first and second biological windows. J Mater Chem B 2019; 7:2001-2008. [DOI: 10.1039/c9tb00061e] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Gold nanostars were developed for cancer cell-targeted NIR-I/II SERS-imaging and PPTT.
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Affiliation(s)
- Chunyuan Song
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Fang Li
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Xiangyin Guo
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Wenqiang Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Chen Dong
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Jingjing Zhang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
| | - Jieyu Zhang
- School of Science
- China Pharmaceutical University
- Nanjing
- China
| | - Lianhui Wang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors
- Institute of Advanced Materials (IAM)
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM)
- Nanjing University of Posts & Telecommunications
- Nanjing 210023
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24
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Vo-Dinh T, Inman BA. What potential does plasmonics-amplified synergistic immuno photothermal nanotherapy have for treatment of cancer? Nanomedicine (Lond) 2018; 13:139-144. [PMID: 29231126 DOI: 10.2217/nnm-2017-0356] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Tuan Vo-Dinh
- Department of Biomedical Engineering, Duke University, Durham, NC 27710, USA.,Department of Chemistry, Duke University, Durham, NC 27710, USA.,Fitzpatrick Institute of Photonics, Duke University, Durham, NC 27710, USA
| | - Brant A Inman
- Fitzpatrick Institute of Photonics, Duke University, Durham, NC 27710, USA.,Division of Urology, Duke University, Durham, NC 27710, USA.,Duke Cancer Institute, Duke University, Durham, NC 27710, USA
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25
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Pannico M, Calarco A, Peluso G, Musto P. Functionalized Gold Nanoparticles as Biosensors for Monitoring Cellular Uptake and Localization in Normal and Tumor Prostatic Cells. BIOSENSORS 2018; 8:E87. [PMID: 30287746 PMCID: PMC6316160 DOI: 10.3390/bios8040087] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 09/27/2018] [Accepted: 09/29/2018] [Indexed: 11/16/2022]
Abstract
In the present contribution the fabrication and characterization of functionalized gold nanospheres of uniform shape and controlled size is reported. These nano-objects are intended to be used as Surface Enhanced Raman Spectroscopy (SERS) sensors for in-vitro cellular uptake and localization. Thiophenol was used as molecular reporter and was bound to the Au surface by a chemisorption process in aqueous solution. The obtained colloidal solution was highly stable and no aggregation of the single nanospheres into larger clusters was observed. The nanoparticles were incubated in human prostatic cells with the aim of developing a robust, SERS-based method to differentiate normal and tumor cell lines. SERS imaging experiments showed that tumor cells uptake considerably larger amounts of nanoparticles in comparison to normal cells (up to 950% more); significant differences were also observed in the uptake kinetics. This largely different behaviour might be exploited in diagnostic and therapeutic applications.
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Affiliation(s)
- Marianna Pannico
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, 80078 Pozzuoli, Italy.
| | - Anna Calarco
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy, 80131 Naples, Italy.
| | - Gianfranco Peluso
- Institute of Agro-environmental and Forest Biology, National Research Council of Italy, 80131 Naples, Italy.
| | - Pellegrino Musto
- Institute for Polymers, Composites and Biomaterials, National Research Council of Italy, 80078 Pozzuoli, Italy.
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26
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Nature Inspired Plasmonic Structures: Influence of Structural Characteristics on Sensing Capability. APPLIED SCIENCES-BASEL 2018. [DOI: 10.3390/app8050668] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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27
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Ngo HT, Freedman E, Odion RA, Strobbia P, De Silva Indrasekara AS, Vohra P, Taylor SM, Vo-Dinh T. Direct Detection of Unamplified Pathogen RNA in Blood Lysate using an Integrated Lab-in-a-Stick Device and Ultrabright SERS Nanorattles. Sci Rep 2018; 8:4075. [PMID: 29511216 PMCID: PMC5840326 DOI: 10.1038/s41598-018-21615-3] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 01/23/2018] [Indexed: 12/19/2022] Open
Abstract
Direct detection of genetic biomarkers in body fluid lysate without target amplification will revolutionize nucleic acid-based diagnostics. However, the low concentration of target sequences makes this goal challenging. We report a method for direct detection of pathogen RNA in blood lysate using a bioassay using surface-enhanced Raman spectroscopy (SERS)-based detection integrated in a "lab-in-a-stick" portable device. Two levels of signal enhancement were employed to achieve the sensitivity required for direct detection. Each target sequence was tagged with an ultrabright SERS-encoded nanorattle with ultrahigh SERS signals, and these tagged target sequences were concentrated into a focused spot for detection using hybridization sandwiches with magnetic microbeads. Furthermore, the washing process was automated by integration into a "lab-in-a-stick" portable device. We could directly detect synthetic target with a limit of detection of 200 fM. More importantly, we detected plasmodium falciparum malaria parasite RNA directly in infected red blood cells lysate. To our knowledge, this is the first report of SERS-based direct detection of pathogen nucleic acid in blood lysate without nucleic acid extraction or target amplification. The results show the potential of our integrated bioassay for field use and point-of-care diagnostics.
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Affiliation(s)
- Hoan T Ngo
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Biomedical Engineering Department, International University, Vietnam National University-Ho Chi Minh City (VNU-HCMC), Ho Chi Minh City, Vietnam
| | - Elizabeth Freedman
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Medicine & Duke Global Health Institute, Duke University, Durham, NC, 27708, USA
| | - Ren Abelard Odion
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Pietro Strobbia
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Agampodi Swarnapali De Silva Indrasekara
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
| | - Priya Vohra
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA
- Division of Head and Neck Surgery and Communication Sciences, Duke University, Durham, NC, 27708, USA
| | - Steve M Taylor
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA
- Department of Medicine & Duke Global Health Institute, Duke University, Durham, NC, 27708, USA
| | - Tuan Vo-Dinh
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC, 27708, USA.
- Department of Biomedical Engineering, Duke University, Durham, NC, 27708, USA.
- Department of Chemistry, Duke University, Durham, NC, 27708, USA.
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28
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Thomas R, Thomas A, Pullanchery S, Joseph L, Somasundaran SM, Swathi RS, Gray SK, Thomas KG. Plexcitons: The Role of Oscillator Strengths and Spectral Widths in Determining Strong Coupling. ACS NANO 2018; 12:402-415. [PMID: 29261287 DOI: 10.1021/acsnano.7b06589] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Strong coupling interactions between plasmon and exciton-based excitations have been proposed to be useful in the design of optoelectronic systems. However, the role of various optical parameters dictating the plasmon-exciton (plexciton) interactions is less understood. Herein, we propose an inequality for achieving strong coupling between plasmons and excitons through appropriate variation of their oscillator strengths and spectral widths. These aspects are found to be consistent with experiments on two sets of free-standing plexcitonic systems obtained by (i) linking fluorescein isothiocyanate on Ag nanoparticles of varying sizes through silane coupling and (ii) electrostatic binding of cyanine dyes on polystyrenesulfonate-coated Au nanorods of varying aspect ratios. Being covalently linked on Ag nanoparticles, fluorescein isothiocyanate remains in monomeric state, and its high oscillator strength and narrow spectral width enable us to approach the strong coupling limit. In contrast, in the presence of polystyrenesulfonate, monomeric forms of cyanine dyes exist in equilibrium with their aggregates: Coupling is not observed for monomers and H-aggregates whose optical parameters are unfavorable. The large aggregation number, narrow spectral width, and extremely high oscillator strength of J-aggregates of cyanines permit effective delocalization of excitons along the linear assembly of chromophores, which in turn leads to efficient coupling with the plasmons. Further, the results obtained from experiments and theoretical models are jointly employed to describe the plexcitonic states, estimate the coupling strengths, and rationalize the dispersion curves. The experimental results and the theoretical analysis presented here portray a way forward to the rational design of plexcitonic systems attaining the strong coupling limits.
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Affiliation(s)
- Reshmi Thomas
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
| | - Anoop Thomas
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
| | - Saranya Pullanchery
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
| | - Linta Joseph
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
| | - Sanoop Mambully Somasundaran
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
| | - Rotti Srinivasamurthy Swathi
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
| | - Stephen K Gray
- Center for Nanoscale Materials, Argonne National Laboratory , Argonne, Illinois 60439, United States
| | - K George Thomas
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram (IISER-TVM) , Vithura, Thiruvananthapuram 695551, India
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29
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Vo-Dinh T, Liu Y, Crawford BM, Wang HN, Yuan H, Register JK, Khoury CG. Shining Gold Nanostars: From Cancer Diagnostics to Photothermal Treatment and Immunotherapy. JOURNAL OF IMMUNOLOGICAL SCIENCES 2018; 2:1-8. [PMID: 37600154 PMCID: PMC10438859 DOI: 10.29245/2578-3009/2018/1.1104] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Cancer has been a significant threat to human health with more than eight million deaths each year in the world. There is an urgent need to develop novel methods to improve cancer management. Biocompatible gold nanostars (GNS) with tip-enhanced electromagnetic and optical properties have been developed and applied for multifunctional cancer diagnostics and therapy (theranostics). The GNS platform can be used for multiple sensing, imaging and treatment modalities, such as surface-enhanced Raman scattering, two-photon photoluminescence, magnetic resonance imaging and computed tomography as well as photothermal therapy and immunotherapy. GNS-mediated photothermal therapy combined with checkpoint immunotherapy has been found to reverse tumor-mediated immunosuppression, leading to the treatment of not only primary tumors but also cancer metastasis as well as inducing effective long-lasting immunity, i.e. an anticancer 'vaccine' effect.
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Affiliation(s)
- Tuan Vo-Dinh
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
| | - Yang Liu
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
| | - Bridget M Crawford
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
| | - Hsin-Neng Wang
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
| | - Hsiangkuo Yuan
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
| | - Janna K Register
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
| | - Christopher G Khoury
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, Department of Chemistry, Duke University, Durham, NC 27708-0281, USA
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Darrigues E, Nima ZA, Majeed W, Vang-Dings KB, Dantuluri V, Biris AR, Zharov VP, Griffin RJ, Biris AS. Raman spectroscopy using plasmonic and carbon-based nanoparticles for cancer detection, diagnosis, and treatment guidance.Part 1: Diagnosis. Drug Metab Rev 2017; 49:212-252. [DOI: 10.1080/03602532.2017.1302465] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Emilie Darrigues
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Zeid A. Nima
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Waqar Majeed
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Kieng Bao Vang-Dings
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Vijayalakshmi Dantuluri
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Alexandru R. Biris
- National Institute for Research and Development of Isotopic and Molecular Technologies
| | - Vladimir P. Zharov
- Arkansas Nanomedicine Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Robert J. Griffin
- Arkansas Nanomedicine Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
- Department of Radiation Oncology, Arkansas Nanomedicine Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Alexandru S. Biris
- Center for Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
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Human Adipose-Derived Stem Cells Labeled with Plasmonic Gold Nanostars for Cellular Tracking and Photothermal Cancer Cell Ablation. Plast Reconstr Surg 2017; 139:900e-910e. [PMID: 28350664 DOI: 10.1097/prs.0000000000003187] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Gold nanostars are unique nanoplatforms that can be imaged in real time and transform light energy into heat to ablate cells. Adipose-derived stem cells migrate toward tumor niches in response to chemokines. The ability of adipose-derived stem cells to migrate and integrate into tumors makes them ideal vehicles for the targeted delivery of cancer nanotherapeutics. METHODS To test the labeling efficiency of gold nanostars, undifferentiated adipose-derived stem cells were incubated with gold nanostars and a commercially available nanoparticle (Qtracker), then imaged using two-photon photoluminescence microscopy. The effects of gold nanostars on cell phenotype, proliferation, and viability were assessed with flow cytometry, 3-(4,5-dimethylthiazolyl-2)-2,5-diphenyltetrazolium bromide metabolic assay, and trypan blue, respectively. Trilineage differentiation of gold nanostar-labeled adipose-derived stem cells was induced with the appropriate media. Photothermolysis was performed on adipose-derived stem cells cultured alone or in co-culture with SKBR3 cancer cells. RESULTS Efficient uptake of gold nanostars occurred in adipose-derived stem cells, with persistence of the luminescent signal over 4 days. Labeling efficiency and signal quality were greater than with Qtracker. Gold nanostars did not affect cell phenotype, viability, or proliferation, and exhibited stronger luminescence than Qtracker throughout differentiation. Zones of complete ablation surrounding the gold nanostar-labeled adipose-derived stem cells were observed following photothermolysis in both monoculture and co-culture models. CONCLUSIONS Gold nanostars effectively label adipose-derived stem cells without altering cell phenotype. Once labeled, photoactivation of gold nanostar-labeled adipose-derived stem cells ablates neighboring cancer cells, demonstrating the potential of adipose-derived stem cells as a vehicle for the delivery of site-specific cancer therapy.
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Wang Z, Zong S, Wu L, Zhu D, Cui Y. SERS-Activated Platforms for Immunoassay: Probes, Encoding Methods, and Applications. Chem Rev 2017; 117:7910-7963. [DOI: 10.1021/acs.chemrev.7b00027] [Citation(s) in RCA: 368] [Impact Index Per Article: 52.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhuyuan Wang
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Shenfei Zong
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Lei Wu
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Dan Zhu
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
| | - Yiping Cui
- Advanced Photonics Center, Southeast University, Nanjing 210096, Jiangsu, China
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Vanhecke D, Rodríguez-Lorenzo L, Kinnear C, Durantie E, Rothen-Rutishauser B, Petri-Fink A. Assumption-free morphological quantification of single anisotropic nanoparticles and aggregates. NANOSCALE 2017; 9:4918-4927. [PMID: 28358404 DOI: 10.1039/c6nr07884b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Characterizing the morphometric parameters of noble metal nanoparticles for sensing and catalysis is a persistent challenge due to their small size and complex shape. Herein, we present an approach to determine the volume, surface area, and curvature of non-symmetric anisotropic nanoparticles using electron tomography and design-based stereology without the use of segmentation tools or modeling of the particles. Finally, we apply these tools to aggregates to estimate their fractal dimension.
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Affiliation(s)
- Dimitri Vanhecke
- University of Fribourg, Adolphe Merkle Institute, Ch. des Verdiers 4, Fribourg, Switzerland.
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Lísalová H, Brynda E, Houska M, Víšová I, Mrkvová K, Song XC, Gedeonová E, Surman F, Riedel T, Pop-Georgievski O, Homola J. Ultralow-Fouling Behavior of Biorecognition Coatings Based on Carboxy-Functional Brushes of Zwitterionic Homo- and Copolymers in Blood Plasma: Functionalization Matters. Anal Chem 2017; 89:3524-3531. [PMID: 28233990 DOI: 10.1021/acs.analchem.6b04731] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Fouling from complex biological fluids such as blood plasma to biorecognition element (BRE)-functionalized coatings hampers the use of affinity biosensor technologies in medical diagnostics. Here, we report the effects the molecular mechanisms involved in functionalization of low-fouling carboxy-functional coatings have on the BRE capacity and resistance to fouling from blood plasma. The specific mechanisms of EDC/NHS activation of carboxy groups, BRE attachment, and deactivation of residual activated groups on recently developed ultra-low-fouling carboxybetaine polymer and copolymer brushes (pCB) as well as conventional carboxy-terminated oligo(ethylene glycol)-based alkanethiolate self-assembled monolayers (OEG-SAMs) are studied using the polarization modulation infrared reflection/absorption spectroscopy, X-ray photoelectron spectroscopy, and surface plasmon resonance methods. It is shown that the fouling resistance of BRE-functionalized pCB coatings is strongly influenced by a deactivation method affecting the ultra-low-fouling molecular structure of the brush and surface charges. It is revealed that, in contrast to free carboxy-group-terminated OEG-SAMs, only a partial deactivation of EDC/NHS-activated zwitterionic carboxy groups by spontaneous hydrolysis is possible in the pCB brushes. The fouling resistance of activated/BRE-functionalized pCB is shown to be recovered only by covalent attachment of amino acid deactivation agents to residual activated carboxy groups of pCB. The developed deactivation procedure is further combined with ultra-low-fouling brushes of random copolymer carboxybetaine methacrylamide (CBMAA) and N-(2-hydroxypropyl) methacrylamide (HPMAA) with optimized CBMAA content (15%) providing a BRE-functionalized coating with superior fouling resistance over various carboxy-functional low-fouling coatings including homopolymer pCB brushes and OEG-SAMs. The biorecognition capabilities of pHPMAA-CBMAA(15%) are demonstrated via the sensitive label-free detection of a microRNA cancer biomarker (miR-16) in blood plasma.
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Affiliation(s)
- Hana Lísalová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Eduard Brynda
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Milan Houska
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Ivana Víšová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Kateřina Mrkvová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Xue Chadtová Song
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - Erika Gedeonová
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
| | - František Surman
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Tomáš Riedel
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Ognen Pop-Georgievski
- Institute of Macromolecular Chemistry, Czech Academy of Sciences , Heyrovského nám. 2, Prague 162 00, Czech Republic
| | - Jiří Homola
- Institute of Photonics and Electronics, Czech Academy of Sciences , Chaberská 57, Prague 182 51, Czech Republic
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Casciaro B, Moros M, Rivera-Fernández S, Bellelli A, de la Fuente JM, Mangoni ML. Gold-nanoparticles coated with the antimicrobial peptide esculentin-1a(1-21)NH 2 as a reliable strategy for antipseudomonal drugs. Acta Biomater 2017; 47:170-181. [PMID: 27693686 DOI: 10.1016/j.actbio.2016.09.041] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Revised: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 12/22/2022]
Abstract
Naturally occurring antimicrobial peptides (AMPs) hold promise as future therapeutics against multidrug resistant microorganisms. Recently, we have discovered that a derivative of the frog skin AMP esculentin-1a, Esc(1-21), is highly potent against both free living and biofilm forms of the bacterial pathogen Pseudomonas aeruginosa. However, bringing AMPs into clinics requires to overcome their low stability, high toxicity and inefficient delivery to the target site at high concentrations. Importantly, peptide conjugation to gold nanoparticles (AuNPs), which are among the most applied inorganic nanocarriers in biomedical sciences, represents a valuable strategy to solve these problems. Here we report that covalent conjugation of Esc(1-21) to soluble AuNPs [AuNPs@Esc(1-21)] via a poly(ethylene glycol) linker increased by ∼15-fold the activity of the free peptide against the motile and sessile forms of P. aeruginosa without being toxic to human keratinocytes. Furthermore, AuNPs@Esc(1-21) resulted to be significantly more resistant to proteolytic digestion and to disintegrate the bacterial membrane at very low concentration (5nM). Finally, we demonstrated for the first time the capability of peptide-coated AuNPs to display a wound healing activity on a keratinocytes monolayer. Overall, these findings suggest that our engineered AuNPs can serve as attractive novel biological-derived material for topical treatment of epithelial infections and healing of the injured tissue. STATEMENT OF SIGNIFICANCE Despite conjugation of AMPs to AuNPs represents a worthwhile solution to face some limitations for their development as new therapeutics, only a very limited number of studies is available on peptide-coated AuNPs. Importantly, this is the first report showing that a covalent binding of a linear AMP via a poly(ethylene glycol) linker to AuNPs highly enhances antipseudomonal activity, preserving the same mode of action of the free peptide, without being harmful. Furthermore, AuNPs@Esc(1-21) are expected to accelerate recovery of an injured skin layer. All together, these findings suggest our peptide-coated AuNPs as attractive novel nanoscale formulation to treat bacterial infections and to heal the injured tissue.
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Wu Z, Kelp G, Yogeesh MN, Li W, McNicholas KM, Briggs A, Rajeeva BB, Akinwande D, Bank SR, Shvets G, Zheng Y. Dual-band moiré metasurface patches for multifunctional biomedical applications. NANOSCALE 2016; 8:18461-18468. [PMID: 27778012 DOI: 10.1039/c6nr06608a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There has been strong interest in developing multi-band plasmonic metasurfaces for multiple optical functions on single platforms. Herein, we developed Au moiré metasurface patches (AMMP), which leverage the tunable multi-band responses of Au moiré metasurfaces and the additional field enhancements of the metal-insulator-metal configuration to achieve dual-band plasmon resonance modes in near-infrared and mid-infrared regimes with high field enhancement. Furthermore, we demonstrate the multifunctional applications of AMMP, including surface-enhanced infrared spectroscopy, optical capture and patterning of bacteria, and photothermal denaturation of proteins. With their multiple functions of high performance, in combination with cost-effective fabrication using moiré nanosphere lithography, the AMMP will enable the development of highly integrated biophotonic platforms for a wide range of applications in disease theranostics, sterilization, and the study of microbiomes.
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Affiliation(s)
- Zilong Wu
- Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA.
| | - Glen Kelp
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
| | | | - Wei Li
- Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Kyle M McNicholas
- Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Andrew Briggs
- Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Bharath Bangalore Rajeeva
- Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA.
| | - Deji Akinwande
- Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Seth R Bank
- Microelectronics Research Centre, The University of Texas at Austin, Austin, Texas 78758, USA
| | - Gennady Shvets
- Department of Physics, The University of Texas at Austin, Austin, Texas 78712, USA
| | - Yuebing Zheng
- Department of Mechanical Engineering, Materials Science and Engineering Program, and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712, USA.
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Gold nanostars for efficient in vitro and in vivo real-time SERS detection and drug delivery via plasmonic-tunable Raman/FTIR imaging. Biomaterials 2016; 106:87-97. [DOI: 10.1016/j.biomaterials.2016.08.014] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 08/06/2016] [Accepted: 08/10/2016] [Indexed: 11/18/2022]
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Fales A, Crawford BM, Vo-Dinh T. Folate Receptor-Targeted Theranostic Nanoconstruct for Surface-Enhanced Raman Scattering Imaging and Photodynamic Therapy. ACS OMEGA 2016; 1:730-735. [PMID: 30023488 PMCID: PMC6044700 DOI: 10.1021/acsomega.6b00176] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 10/20/2016] [Indexed: 05/03/2023]
Abstract
We report the synthesis of a folate receptor (FR)-targeted theranostic nanocomposite for surface-enhanced Raman scattering (SERS) imaging and photodynamic therapy (PDT). FR-specific SERS detection and PDT are demonstrated in vitro using two FR-positive cancer cell lines and one FR-negative cancer cell lines.
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Affiliation(s)
- Andrew
M. Fales
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, and Department of
Chemistry, Duke University, 101 Science Drive, Box 90281, Durham, North Carolina 27708, United States
| | - Bridget M. Crawford
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, and Department of
Chemistry, Duke University, 101 Science Drive, Box 90281, Durham, North Carolina 27708, United States
| | - Tuan Vo-Dinh
- Fitzpatrick Institute for Photonics, Department of Biomedical Engineering, and Department of
Chemistry, Duke University, 101 Science Drive, Box 90281, Durham, North Carolina 27708, United States
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Asiala SM, Marr JM, Gervinskas G, Juodkazis S, Schultz ZD. Plasmonic color analysis of Ag-coated black-Si SERS substrate. Phys Chem Chem Phys 2016; 17:30461-7. [PMID: 26510016 DOI: 10.1039/c5cp04506a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Red-Green-Blue (RGB) dark-field imaging can direct the choice of laser excitation for Raman enhancements on nanostructured plasmonic surfaces. Here we demonstrate that black silicon (b-Si) is a structured surface that has been shown to effectively absorb broad wavelengths of light, but also enables surface enhanced Raman scattering (SERS) when coated with silver (Ag). Coating b-Si with increasing amounts of Ag results in increased dark-field scattering at discrete frequencies associated with localized plasmon resonances. The dark-field scattering was monitored by collecting a far-field image with an inexpensive complementary metal oxide semiconductor (CMOS) camera, similar to what is available on most mobile phones. Color analysis of the RGB pixel intensities correlates with the observed SERS intensity obtained with either green (532 nm) or red (633 nm) laser excitation in SERS experiments. Of particular note, the SERS response at 633 nm showed low spectral variation and a lack of background scattering compared to SERS at 532 nm. The difference in background suggests sub-radiant (dark or Fano resonances) may be associated with the SERS response at 633 nm and a non-resonant character of SERS. These results indicate that b-Si serves a template where Ag nucleates during physical vapor deposition. Increased deposition causes the deposits to coalesce, and at larger Ag thicknesses, bulk scattering is observed. Comparison with a high enhancement Ag SERS substrate further illustrates that a high density of plasmonic junctions, or hotspots, is important for maximizing the SERS response. The randomness of the b-Si substrate and the corresponding Ag nano-features contributes to a broadband spectral response and enhancement in SERS. Metal-coated b-Si is a promising SERS substrate due to its performance and facile fabrication.
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Affiliation(s)
- Steven M Asiala
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - James M Marr
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Gediminas Gervinskas
- Swinburne University of Technology, John St. Mail, Hawthorn, VIC 3122, Australia and Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, VIC 3168, Australia
| | - Saulius Juodkazis
- Swinburne University of Technology, John St. Mail, Hawthorn, VIC 3122, Australia and Melbourne Centre for Nanofabrication, 151 Wellington Road, Clayton, VIC 3168, Australia
| | - Zachary D Schultz
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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Morla-Folch J, Alvarez-Puebla RA, Guerrini L. Direct Quantification of DNA Base Composition by Surface-Enhanced Raman Scattering Spectroscopy. J Phys Chem Lett 2016; 7:3037-3041. [PMID: 27441814 DOI: 10.1021/acs.jpclett.6b01424] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Design of ultrasensitive DNA sensors based on the unique physical properties of plasmonic nanostructures has become one of the most exciting areas in nanomedicine. However, despite the vast number of proposed applications, the determination of the base composition in nucleic acids, a fundamental parameter in genomic analyses and taxonomic classification, is still restricted to time-consuming and poorly sensitive conventional methods. Herein, we demonstrate the possibility of determining the base composition in single- and double-stranded DNA by using a simple, low-cost, high-throughput, and label-free surface-enhanced Raman scattering (SERS) method in combination with cationic nanoparticles.
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Affiliation(s)
- Judit Morla-Folch
- Medcom Advance , Viladecans Business Park, Edificio Brasil, Bertran i Musitu 83-85, 08840 Viladecans, Barcelona, Spain
- Centro Tecnológico de la Química de Catalunya and Universitat Rovira I Virgili , Carrer de Marcel•lí Domingo s/n, 43007 Tarragona, Spain
| | - Ramon A Alvarez-Puebla
- Medcom Advance , Viladecans Business Park, Edificio Brasil, Bertran i Musitu 83-85, 08840 Viladecans, Barcelona, Spain
- Centro Tecnológico de la Química de Catalunya and Universitat Rovira I Virgili , Carrer de Marcel•lí Domingo s/n, 43007 Tarragona, Spain
- ICREA , Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Luca Guerrini
- Medcom Advance , Viladecans Business Park, Edificio Brasil, Bertran i Musitu 83-85, 08840 Viladecans, Barcelona, Spain
- Centro Tecnológico de la Química de Catalunya and Universitat Rovira I Virgili , Carrer de Marcel•lí Domingo s/n, 43007 Tarragona, Spain
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Ngo HT, Gandra N, Fales AM, Taylor SM, Vo-Dinh T. Sensitive DNA detection and SNP discrimination using ultrabright SERS nanorattles and magnetic beads for malaria diagnostics. Biosens Bioelectron 2016; 81:8-14. [PMID: 26913502 PMCID: PMC4835027 DOI: 10.1016/j.bios.2016.01.073] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/23/2016] [Accepted: 01/28/2016] [Indexed: 12/18/2022]
Abstract
One of the major obstacles to implement nucleic acid-based molecular diagnostics at the point-of-care (POC) and in resource-limited settings is the lack of sensitive and practical DNA detection methods that can be seamlessly integrated into portable platforms. Herein we present a sensitive yet simple DNA detection method using a surface-enhanced Raman scattering (SERS) nanoplatform: the ultrabright SERS nanorattle. The method, referred to as the nanorattle-based method, involves sandwich hybridization of magnetic beads that are loaded with capture probes, target sequences, and ultrabright SERS nanorattles that are loaded with reporter probes. Upon hybridization, a magnet was applied to concentrate the hybridization sandwiches at a detection spot for SERS measurements. The ultrabright SERS nanorattles, composed of a core and a shell with resonance Raman reporters loaded in the gap space between the core and the shell, serve as SERS tags for signal detection. Using this method, a specific DNA sequence of the malaria parasite Plasmodium falciparum could be detected with a detection limit of approximately 100 attomoles. Single nucleotide polymorphism (SNP) discrimination of wild type malaria DNA and mutant malaria DNA, which confers resistance to artemisinin drugs, was also demonstrated. These test models demonstrate the molecular diagnostic potential of the nanorattle-based method to both detect and genotype infectious pathogens. Furthermore, the method's simplicity makes it a suitable candidate for integration into portable platforms for POC and in resource-limited settings applications.
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Affiliation(s)
- Hoan T Ngo
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Naveen Gandra
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Andrew M Fales
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA
| | - Steve M Taylor
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA; Department of Medicine & Duke Global Health Institute, Duke University, Durham, NC 27708, USA
| | - Tuan Vo-Dinh
- Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA; Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA; Department of Chemistry, Duke University, Durham, NC 27708, USA.
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Wang Y, Chen J, Sun C, Rong K, Li H, Gong Q. An ultrahigh-contrast and broadband on-chip refractive index sensor based on a surface-plasmon-polariton interferometer. Analyst 2016; 140:7263-70. [PMID: 26273704 DOI: 10.1039/c5an00935a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using a double-slit structure fabricated on a gold film or a subwavelength (300 nm) plasmonic waveguide, high-contrast and broadband plasmonic sensors based on the interference of surface plasmon polaritons (SPPs) are experimentally demonstrated on chips. By adjusting the focused spot position of the p-polarized incident light on the double-slit structure to compensate for the propagation loss of the SPPs, the interfering SPPs from the two slits have nearly equal intensities. As a result, nearly completely destructive interference can be experimentally achieved in a broad bandwidth (>200 nm), revealing the robust design and fabrication of the double-slit structure. More importantly, a high sensing figure of merit (FOM*) of >1 × 10(4) RIU(-1) (refractive index unit), which is much greater than the previous experimental results, is obtained at the destructive wavelength because of a high contrast ratio (C = 0.96). The high-contrast and broadband on-chip sensor fabricated on the subwavelength plasmonic waveguide may find important applications in the real-time sensing of particles and molecules.
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Affiliation(s)
- Yujia Wang
- State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871, China.
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Gandra N, Hendargo HC, Norton SJ, Fales AM, Palmer GM, Vo-Dinh T. Tunable and amplified Raman gold nanoprobes for effective tracking (TARGET): in vivo sensing and imaging. NANOSCALE 2016; 8:8486-8494. [PMID: 27064259 DOI: 10.1039/c5nr08980h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We describe the development of a highly tunable, physiologically stable, and ultra-bright Raman probe, named as TARGET (Tunable and Amplified Raman Gold Nanoprobes for Effective Tracking), for in vitro and in vivo surface-enhanced Raman scattering (SERS) applications. The TARGET structure consists of a gold core inside a larger gold shell with a tunable interstitial gap similar to a "nanorattle" structure. The combination of galvanic replacement and the seed mediated growth method was employed to load Raman reporter molecules and subsequently close the pores to prevent leaking and degradation of reporters under physiologically extreme conditions. Precise tuning of the core-shell gap width, core size, and shell thickness allows us to modulate the plasmonic effect and achieve a maximum electric-field (E-field) intensity. The interstitial gap of TARGET nanoprobes can be designed to exhibit a plasmon absorption band at 785 nm, which is in resonance with the dye absorption maximum and lies in the "tissue optical window", resulting in ultra-bright SERS signals for in vivo studies. The results of in vivo measurements of TARGETs in laboratory mice illustrated the usefulness of these nanoprobes for medical sensing and imaging.
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Affiliation(s)
- Naveen Gandra
- Duke University, Departments of Biomedical Engineering and Chemistry and the Fitzpatrick Institute for Photonics, 2589 CIEMAS, Durham, NC 27708, USA.
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Yuan H, Gomez JA, Chien JS, Zhang L, Wilson CM, Li S, Fales AM, Liu Y, Grant GA, Mirotsou M, Dzau VJ, Vo-Dinh T. Tracking mesenchymal stromal cells using an ultra-bright TAT-functionalized plasmonic-active nanoplatform. JOURNAL OF BIOPHOTONICS 2016; 9:406-413. [PMID: 27095616 PMCID: PMC5645019 DOI: 10.1002/jbio.201500173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 08/11/2015] [Accepted: 08/24/2015] [Indexed: 06/05/2023]
Abstract
High-resolution tracking of stem cells remains a challenging task. An ultra-bright contrast agent with extended intracellular retention is suitable for in vivo high-resolution tracking of stem cells following the implantation. Here, a plasmonic-active nanoplatform was developed for tracking mesenchymal stromal cells (MSCs) in mice. The nanoplatform consisted of TAT peptide-functionalized gold nanostars (TAT-GNS) that emit ultra-bright two-photon photoluminescence capable of tracking MSCs under high-resolution optical imaging. In vitro experiment showed TAT-GNS-labeled MSCs retained a similar differentiability to that of non-labeled MSCs controls. Due to their star shape, TAT-GNS exhibited greater intracellular retention than that of commercial Q-Tracker. In vivo imaging of TAT-GNS-labeled MSCs five days following intra-arterial injections in mice kidneys showed possible MSCs implantation in juxta-glomerular (JG) regions, but non-specifically in glomeruli and afferent arterioles as well. With future design to optimize GNS labeling specificity and clearance, plasmonic-active nanoplatforms may be a useful intracellular tracking tool for stem cell research. An ultra-bright intracellular contrast agent is developed using TAT peptide-functionalized gold nanostars (TAT-GNS). It poses minimal influence on the stem cell differentiability. It exhibits stronger two-photon photoluminescence and superior labeling efficiency than commercial Q-Tracker. Following renal implantation, some TAT-GNS-labeled MSCs permeate blood vessels and migrate to the juxta-glomerular region.
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Affiliation(s)
- Hsiangkuo Yuan
- Department of Biomedical Engineering, Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA
| | - Jose A Gomez
- Department of Medicine, Duke University Medical Center and Mandel Center for Hypertension and Atherosclerosis Research, Durham, NC 27710, USA
| | - Jennifer S Chien
- Department of Medicine, Duke University Medical Center and Mandel Center for Hypertension and Atherosclerosis Research, Durham, NC 27710, USA
| | - Lunan Zhang
- Department of Medicine, Duke University Medical Center and Mandel Center for Hypertension and Atherosclerosis Research, Durham, NC 27710, USA
| | - Christy M Wilson
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Shuqin Li
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Andrew M Fales
- Department of Biomedical Engineering, Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA
| | - Yang Liu
- Department of Biomedical Engineering, Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA
- Department of Chemistry, Duke University, NC 27708, USA
| | - Gerald A Grant
- Division of Neurosurgery, Department of Surgery, Duke University Medical Center, Durham, NC 27710, USA
| | - Maria Mirotsou
- Department of Medicine, Duke University Medical Center and Mandel Center for Hypertension and Atherosclerosis Research, Durham, NC 27710, USA
| | - Victor J Dzau
- Department of Medicine, Duke University Medical Center and Mandel Center for Hypertension and Atherosclerosis Research, Durham, NC 27710, USA
| | - Tuan Vo-Dinh
- Department of Biomedical Engineering, Fitzpatrick Institute for Photonics, Duke University, Durham, NC 27708, USA.
- Department of Chemistry, Duke University, NC 27708, USA.
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Fu G, Sanjay ST, Dou M, Li X. Nanoparticle-mediated photothermal effect enables a new method for quantitative biochemical analysis using a thermometer. NANOSCALE 2016; 8:5422-7. [PMID: 26838516 PMCID: PMC5106188 DOI: 10.1039/c5nr09051b] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
A new biomolecular quantitation method, nanoparticle-mediated photothermal bioassay, using a common thermometer as the signal reader was developed. Using an immunoassay as a proof of concept, iron oxide nanoparticles (NPs) captured in the sandwich-type assay system were transformed into a near-infrared (NIR) laser-driven photothermal agent, Prussian blue (PB) NPs, which acted as a photothermal probe to convert the assay signal into heat through the photothermal effect, thus allowing sensitive biomolecular quantitation using a thermometer. This is the first report of biomolecular quantitation using a thermometer and also serves as the first attempt to introduce the nanoparticle-mediated photothermal effect for bioassays.
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Affiliation(s)
- Guanglei Fu
- Department of Chemistry, University of Texas at El Paso, 500 West University Ave, El Paso, Texas 79968, USA.
| | - Sharma T Sanjay
- Department of Chemistry, University of Texas at El Paso, 500 West University Ave, El Paso, Texas 79968, USA.
| | - Maowei Dou
- Department of Chemistry, University of Texas at El Paso, 500 West University Ave, El Paso, Texas 79968, USA.
| | - XiuJun Li
- Department of Chemistry, University of Texas at El Paso, 500 West University Ave, El Paso, Texas 79968, USA. and Biomedical Engineering, University of Texas at El Paso, 500 West University Ave, El Paso, Texas 79968, USA and Border Biomedical Research Center, University of Texas at El Paso, 500 West University Ave, El Paso, Texas 79968, USA
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Wang X, Zhou L, Wei G, Jiang T, Zhou J. SERS-based immunoassay using a core–shell SiO2@Ag immune probe and Ag-decorated NiCo2O4 nanorods immune substrate. RSC Adv 2016. [DOI: 10.1039/c5ra22884k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A novel sandwich structure consisting of the SiO2@Ag immune probe and the Ag-decorated NNRs substrate was used to detect AFP and a detection limit is as low as 2.1 fg mL−1.
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Affiliation(s)
- Xiaolong Wang
- Institute of Photonics
- Faculty of Science
- Ningbo University
- Ningbo
- China
| | - Lu Zhou
- Institute of Photonics
- Faculty of Science
- Ningbo University
- Ningbo
- China
| | - Guodong Wei
- College of Physics
- Jilin University
- Changchun
- China
| | - Tao Jiang
- Institute of Photonics
- Faculty of Science
- Ningbo University
- Ningbo
- China
| | - Jun Zhou
- Institute of Photonics
- Faculty of Science
- Ningbo University
- Ningbo
- China
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48
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Maysinger D, Ji J, Hutter E, Cooper E. Nanoparticle-Based and Bioengineered Probes and Sensors to Detect Physiological and Pathological Biomarkers in Neural Cells. Front Neurosci 2015; 9:480. [PMID: 26733793 PMCID: PMC4683200 DOI: 10.3389/fnins.2015.00480] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Accepted: 11/30/2015] [Indexed: 01/11/2023] Open
Abstract
Nanotechnology, a rapidly evolving field, provides simple and practical tools to investigate the nervous system in health and disease. Among these tools are nanoparticle-based probes and sensors that detect biochemical and physiological properties of neurons and glia, and generate signals proportionate to physical, chemical, and/or electrical changes in these cells. In this context, quantum dots (QDs), carbon-based structures (C-dots, grapheme, and nanodiamonds) and gold nanoparticles are the most commonly used nanostructures. They can detect and measure enzymatic activities of proteases (metalloproteinases, caspases), ions, metabolites, and other biomolecules under physiological or pathological conditions in neural cells. Here, we provide some examples of nanoparticle-based and genetically engineered probes and sensors that are used to reveal changes in protease activities and calcium ion concentrations. Although significant progress in developing these tools has been made for probing neural cells, several challenges remain. We review many common hurdles in sensor development, while highlighting certain advances. In the end, we propose some future directions and ideas for developing practical tools for neural cell investigations, based on the maxim "Measure what is measurable, and make measurable what is not so" (Galileo Galilei).
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Affiliation(s)
- Dusica Maysinger
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Jeff Ji
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Eliza Hutter
- Department of Pharmacology and Therapeutics, McGill University Montreal, QC, Canada
| | - Elis Cooper
- Department of Physiology, McGill University Montreal, QC, Canada
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Ngo HT, Wang HN, Fales AM, Vo-Dinh T. Plasmonic SERS biosensing nanochips for DNA detection. Anal Bioanal Chem 2015; 408:1773-81. [DOI: 10.1007/s00216-015-9121-4] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/08/2015] [Accepted: 10/14/2015] [Indexed: 12/12/2022]
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Das G, Battista E, Manzo G, Causa F, Netti PA, Di Fabrizio E. Large-Scale Plasmonic nanoCones Array For Spectroscopy Detection. ACS APPLIED MATERIALS & INTERFACES 2015; 7:23597-604. [PMID: 26399550 DOI: 10.1021/acsami.5b06887] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Advanced optical materials or interfaces are gaining attention for diagnostic applications. However, the achievement of large device interface as well as facile surface functionalization largely impairs their wide use. The present work is aimed to address different innovative aspects related to the fabrication of large-area 3D plasmonic arrays, their direct and easy functionalization with capture elements, and their spectroscopic verifications through enhanced Raman and enhanced fluorescence techniques. In detail, we have investigated the effect of a Au-based nanoCone array, fabricated by means of direct nanoimprint technique over large area (mm(2)), on protein capturing and on the enhancement in optical signal. A selective functionalization of gold surfaces was proposed by using a peptide (AuPi3) previously selected by phage display. In this regard, two different sequences, labeled with fluorescein and biotin, were chemisorbed on metallic surfaces. The presence of Au nanoCones array consents an enhancement in electric field on the apex of cone, enabling the detection of molecules. We have witnessed around 12-fold increase in fluorescence intensity and SERS enhancement factor around 1.75 × 10(5) with respect to the flat gold surface. Furthermore, a sharp decrease in fluorescence lifetime over nanoCones confirms the increase in radiative emission (i.e., an increase in photonics density at the apex of cones).
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Affiliation(s)
- Gobind Das
- PSE division, King Abdullah University of Science and Technology , Thuwal 23955-6900, Saudi Arabia
| | - Edmondo Battista
- CABHC, IIT @CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Napoli, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University Federico II , P.le Tecchio 80, Napoli, Italy
| | - Gianluigi Manzo
- CABHC, IIT @CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Napoli, Italy
- Department of Applied Science and Technology, Politecnico di Torino , C.so Duca degli Abruzzi 24, 10129 Turin, Italy
| | - Filippo Causa
- CABHC, IIT @CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Napoli, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University Federico II , P.le Tecchio 80, Napoli, Italy
| | - Paolo Antonio Netti
- CABHC, IIT @CRIB, Istituto Italiano di Tecnologia , L.go Barsanti e Matteucci 53, 80125 Napoli, Italy
- Interdisciplinary Research Center on Biomaterials (CRIB), University Federico II , P.le Tecchio 80, Napoli, Italy
| | - Enzo Di Fabrizio
- PSE division, King Abdullah University of Science and Technology , Thuwal 23955-6900, Saudi Arabia
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