1
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Super-Resolution Microscopy and Their Applications in Food Materials: Beyond the Resolution Limits of Fluorescence Microscopy. FOOD BIOPROCESS TECH 2022. [DOI: 10.1007/s11947-022-02883-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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2
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Beshay PE, Cortes-Medina MG, Menyhert MM, Song JW. The biophysics of cancer: emerging insights from micro- and nanoscale tools. ADVANCED NANOBIOMED RESEARCH 2022; 2:2100056. [PMID: 35156093 PMCID: PMC8827905 DOI: 10.1002/anbr.202100056] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Cancer is a complex and dynamic disease that is aberrant both biologically and physically. There is growing appreciation that physical abnormalities with both cancer cells and their microenvironment that span multiple length scales are important drivers for cancer growth and metastasis. The scope of this review is to highlight the key advancements in micro- and nano-scale tools for delineating the cause and consequences of the aberrant physical properties of tumors. We focus our review on three important physical aspects of cancer: 1) solid mechanical properties, 2) fluid mechanical properties, and 3) mechanical alterations to cancer cells. Beyond posing physical barriers to the delivery of cancer therapeutics, these properties are also known to influence numerous biological processes, including cancer cell invasion and migration leading to metastasis, and response and resistance to therapy. We comment on how micro- and nanoscale tools have transformed our fundamental understanding of the physical dynamics of cancer progression and their potential for bridging towards future applications at the interface of oncology and physical sciences.
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Affiliation(s)
- Peter E. Beshay
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210
| | | | - Miles M. Menyhert
- Department of Chemical and Biomolecular Engineering, The Ohio State University, Columbus, OH 43210
| | - Jonathan W. Song
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, OH 43210,The Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210
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3
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Chen C, Liu B, Liu Y, Liao J, Shan X, Wang F, Jin D. Heterochromatic Nonlinear Optical Responses in Upconversion Nanoparticles for Super-Resolution Nanoscopy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2008847. [PMID: 33864638 DOI: 10.1002/adma.202008847] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/03/2021] [Indexed: 05/22/2023]
Abstract
Point spread function (PSF) engineering by an emitter's response can code higher-spatial-frequency information of an image for microscopy to achieve super-resolution. However, complexed excitation optics or repetitive scans are needed, which explains the issues of low speed, poor stability, and operational complexity associated with the current laser scanning microscopy approaches. Here, the diverse emission responses of upconversion nanoparticles (UCNPs) are reported for super-resolution nanoscopy to improve the imaging quality and speed. The method only needs a doughnut-shaped scanning excitation beam at an appropriate power density. By collecting the four-photon emission of single UCNPs, the high-frequency information of a super-resolution image can be resolved through the doughnut-emission PSF. Meanwhile, the two-photon state of the same nanoparticle is oversaturated, so that the complementary lower-frequency information of the super-resolution image can be simultaneously collected by the Gaussian-like emission PSF. This leads to a method of Fourier-domain heterochromatic fusion, which allows the extended capability of the engineered PSFs to cover both low- and high-frequency information to yield optimized image quality. This approach achieves a spatial resolution of 40 nm, 1/24th of the excitation wavelength. This work suggests a new scope for developing nonlinear multi-color emitting probes in super-resolution nanoscopy.
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Affiliation(s)
- Chaohao Chen
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Baolei Liu
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Yongtao Liu
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Jiayan Liao
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Xuchen Shan
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Fan Wang
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
- School of Electrical and Data Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Dayong Jin
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
- UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
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4
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Wen S, Liu Y, Wang F, Lin G, Zhou J, Shi B, Suh YD, Jin D. Nanorods with multidimensional optical information beyond the diffraction limit. Nat Commun 2020; 11:6047. [PMID: 33247149 PMCID: PMC7695702 DOI: 10.1038/s41467-020-19952-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 11/09/2020] [Indexed: 12/22/2022] Open
Abstract
Precise design and fabrication of heterogeneous nanostructures will enable nanoscale devices to integrate multiple desirable functionalities. But due to the diffraction limit (~200 nm), the optical uniformity and diversity within the heterogeneous functional nanostructures are hardly controlled and characterized. Here, we report a set of heterogeneous nanorods; each optically active section has its unique nonlinear response to donut-shaped illumination, so that one can discern each section with super-resolution. To achieve this, we first realize an approach of highly controlled epitaxial growth and produce a range of heterogeneous structures. Each section along the nanorod structure displays tunable upconversion emissions, in four optical dimensions, including color, lifetime, excitation wavelength, and power dependency. Moreover, we demonstrate a 210 nm single nanorod as an extremely small polychromatic light source for the on-demand generation of RGB photonic emissions. This work benchmarks our ability toward the full control of sub-diffraction-limit optical diversities of single heterogeneous nanoparticles. Development of functional nanostructures can enable a range of applications in imaging and nanoscale science. Here, the authors fabricate and characterize complex heterogeneous nanorods with diverse, tunable sub-wavelength structures.
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Affiliation(s)
- Shihui Wen
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Yongtao Liu
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Fan Wang
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Gungun Lin
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Jiajia Zhou
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Bingyang Shi
- Centre for Motor Neuron Disease Research, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Yung Doug Suh
- Laboratory for Advanced Molecular Probing, Research Center for Bio Platform Technology, Korea Research Institute of Chemical Technology, Daejeon, 34114, South Korea.,School of Chemical Engineering, SungKyunKwan University, Suwon, 16419, South Korea
| | - Dayong Jin
- Institute for Biomedical Materials & Devices (IBMD), Faculty of Science, University of Technology Sydney, Ultimo, NSW, 2007, Australia. .,UTS-SUStech Joint Research Centre for Biomedical Materials & Devices, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, PR China.
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5
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Olsson TB, Abariute L, Hrachowina L, Barrigón E, Volpati D, Limpert S, Otnes G, Borgström MT, Prinz CN. Photovoltaic nanowires affect human lung cell proliferation under illumination conditions. NANOSCALE 2020; 12:14237-14244. [PMID: 32608415 DOI: 10.1039/c9nr07678f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Using light to interact with cells is a promising way to steer cell behavior with minimal perturbation. Besides optogenetics, photovoltaic nanostructures such as nanowires can be used to interact with cells using light as a switch. Photovoltaic nanowires have, for instance, been used to stimulate neurons. However, the effects of the photovoltaic activity on cells are still poorly understood and characterized. Here, we investigate the effects of the photovoltaic activity of p-i-n nanowire arrays on A549 human lung adenocarcinoma cells. We have cultured A549 cells on top of vertical arrays of indium phosphide p-i-n nanowires (photovoltaic nanowires), with and without illumination to assess the effects of the nanowire photovoltaic activity on cells. We show that there is a higher proportion of dormant cells when the p-i-n nanowire arrays are illuminated. However, there is no difference in the proportion of dormant cells when the p-i-n nanowires are coated with oxide, which suggests that carrier injection in the cell medium (in this case, the release of electrons from the tip of the nanowires) is an important factor for modulating cell proliferation on photovoltaic nanowires. The results open up for interesting applications of photovoltaic nanowires in biomedicine, such as using them as a dormancy switch.
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Affiliation(s)
- Therese B Olsson
- Division of Solid State Physics and NanoLund, Lund University, 221 00 Lund, Sweden.
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6
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Liu Z, Liu J, Wang X, Mi F, Wang D, Wu C. Fluorescent Bioconjugates for Super-Resolution Optical Nanoscopy. Bioconjug Chem 2020; 31:1857-1872. [DOI: 10.1021/acs.bioconjchem.0c00320] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Zhihe Liu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 510855, China
| | - Jie Liu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 510855, China
- Department of Biology, Hong Kong Baptist University, Hong Kong 999077, China
| | - Xiaodong Wang
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 510855, China
| | - Feixue Mi
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 510855, China
| | - Dan Wang
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Changfeng Wu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 510855, China
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7
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Single-particle spectroscopy for functional nanomaterials. Nature 2020; 579:41-50. [PMID: 32132689 DOI: 10.1038/s41586-020-2048-8] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 01/07/2020] [Indexed: 11/08/2022]
Abstract
Tremendous progress in nanotechnology has enabled advances in the use of luminescent nanomaterials in imaging, sensing and photonic devices. This translational process relies on controlling the photophysical properties of the building block, that is, single luminescent nanoparticles. In this Review, we highlight the importance of single-particle spectroscopy in revealing the diverse optical properties and functionalities of nanomaterials, and compare it with ensemble fluorescence spectroscopy. The information provided by this technique has guided materials science in tailoring the synthesis of nanomaterials to achieve optical uniformity and to develop novel applications. We discuss the opportunities and challenges that arise from pushing the resolution limit, integrating measurement and manipulation modalities, and establishing the relationship between the structure and functionality of single nanoparticles.
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8
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He Q, Bao M, Hass K, Lin W, Qin P, Du K. Perspective of Molecular Diagnosis in Healthcare: From Barcode to Pattern Recognition. Diagnostics (Basel) 2019; 9:diagnostics9030075. [PMID: 31337082 PMCID: PMC6787598 DOI: 10.3390/diagnostics9030075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 07/08/2019] [Accepted: 07/10/2019] [Indexed: 11/28/2022] Open
Abstract
Barcode technology has a broad spectrum of applications including healthcare, food security, and environmental monitoring, due to its ability to encode large amounts of information. With the rapid development of modern molecular research, barcodes are utilized as a reporter with different molecular combinations to label many biomolecular targets, including genomic and metabolic elements, even with multiplex targeting. Along with the advancements in barcoded bioassay, the improvements of various designs of barcode components, encoding and decoding strategies, and their portable adoption are indispensable in satisfying multiple purposes, such as medical confirmation and point-of-care (POC) testing. This perspective briefly discusses the current direction and progress of barcodes development and provides a hypothesis for barcoded bioassay in the near future.
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Affiliation(s)
- Qian He
- Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA
- Precision Medicine and Public Healthcare Research Center, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518057, China
| | - Mengdi Bao
- Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA
| | - Kenneth Hass
- Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA
| | - Wenxia Lin
- Department of QB3, University of California, Berkeley, CA 94720, USA
| | - Peiwu Qin
- Precision Medicine and Public Healthcare Research Center, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518057, China.
| | - Ke Du
- Department of Mechanical Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA.
- Department of Microsystems Engineering, Rochester Institute of Technology, NY 14623, USA.
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9
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Abariute L, Lard M, Hebisch E, Prinz CN. Uptake of nanowires by human lung adenocarcinoma cells. PLoS One 2019; 14:e0218122. [PMID: 31226121 PMCID: PMC6588221 DOI: 10.1371/journal.pone.0218122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 05/27/2019] [Indexed: 12/23/2022] Open
Abstract
Semiconductor nanowires are increasingly used in optoelectronic devices. However, their effects on human health have not been assessed fully. Here, we investigate the effects of gallium phosphide nanowires on human lung adenocarcinoma cells. Four different geometries of nanowires were suspended in the cell culture for 48 hours. We show that cells internalize the nanowires and that the nanowires have no effect on cell proliferation rate, motility, viability and intracellular ROS levels. By blocking specific internalization pathways, we demonstrate that the nanowire uptake is the result of a combination of processes, requiring dynamin and actin polymerization, which suggests an internalization through macropinocytosis and phagocytosis.
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Affiliation(s)
- Laura Abariute
- Division of Solid State Physics, Lund University, Lund, Sweden
- NanoLund, Lund University, Lund, Sweden
| | - Mercy Lard
- Division of Solid State Physics, Lund University, Lund, Sweden
- NanoLund, Lund University, Lund, Sweden
| | - Elke Hebisch
- Division of Solid State Physics, Lund University, Lund, Sweden
- NanoLund, Lund University, Lund, Sweden
| | - Christelle N. Prinz
- Division of Solid State Physics, Lund University, Lund, Sweden
- NanoLund, Lund University, Lund, Sweden
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10
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Zhu T, Snaider JM, Yuan L, Huang L. Ultrafast Dynamic Microscopy of Carrier and Exciton Transport. Annu Rev Phys Chem 2019; 70:219-244. [PMID: 30883273 DOI: 10.1146/annurev-physchem-042018-052605] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
We highlight the recent progress in ultrafast dynamic microscopy that combines ultrafast optical spectroscopy with microscopy approaches, focusing on the application transient absorption microscopy (TAM) to directly image energy and charge transport in solar energy harvesting and conversion systems. We discuss the principles, instrumentation, and resolutions of TAM. The simultaneous spatial, temporal, and excited-state-specific resolutions of TAM unraveled exciton and charge transport mechanisms that were previously obscured in conventional ultrafast spectroscopy measurements for systems such as organic solar cells, hybrid perovskite thin films, and molecular aggregates. We also discuss future directions to improve resolutions and to develop other ultrafast imaging contrasts beyond transient absorption.
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Affiliation(s)
- Tong Zhu
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
- Laser/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Jordan M. Snaider
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Long Yuan
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
| | - Libai Huang
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, USA
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11
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Lard M, Linke H, Prinz CN. Biosensing using arrays of vertical semiconductor nanowires: mechanosensing and biomarker detection. NANOTECHNOLOGY 2019; 30:214003. [PMID: 30699399 DOI: 10.1088/1361-6528/ab0326] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Due to their high aspect ratio and increased surface-to-foot-print area, arrays of vertical semiconductor nanowires are used in numerous biological applications, such as cell transfection and biosensing. Here we focus on two specific valuable biosensing approaches that, so far, have received relatively limited attention in terms of their potential capabilities: cellular mechanosensing and lightguiding-induced enhanced fluorescence detection. Although proposed a decade ago, these two applications for using vertical nanowire arrays have only very recently achieved significant breakthroughs, both in terms of understanding their fundamental phenomena, and in the ease of their implementation. We review the status of the field in these areas and describe significant findings and potential future directions.
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Affiliation(s)
- Mercy Lard
- Division of Solid State Physics and NanoLund, Lund University, Box 118, SE-221 00 Lund Sweden
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12
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Wang Y, Wang F, Liu R, Zhang P, Gao H, Li F. Sub-Rayleigh resolution single-pixel imaging using Gaussian- and doughnut-spot illumination. OPTICS EXPRESS 2019; 27:5973-5981. [PMID: 30876191 DOI: 10.1364/oe.27.005973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
In this paper, we propose an approach to achieve a sub-Rayleigh resolution image in a single-pixel imaging system. In our scheme, Gaussian- and doughnut-shaped spots are used to alternatively illuminate an object and a single-pixel detector located after the object is employed to collect the transmitted light as two bucket signals, respectively. The image is reconstructed by assigning the difference of the bucket signals to the central position of the illumination spot. In this way, the spatial resolution of the resulting image is determined by the width of subtraction of the two spots. Combined with the deconvolution algorithm, we achieve a spatial resolution beyond the Rayleigh limit of single-pixel imaging by a factor of 22. We also propose a differential algorithm to keep the visibility of single-pixel imaging at a high level, which will be more suitable for applications.
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13
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Sahl SJ, Schönle A, Hell SW. Fluorescence Microscopy with Nanometer Resolution. SPRINGER HANDBOOK OF MICROSCOPY 2019. [DOI: 10.1007/978-3-030-00069-1_22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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14
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Chen C, Wang F, Wen S, Su QP, Wu MCL, Liu Y, Wang B, Li D, Shan X, Kianinia M, Aharonovich I, Toth M, Jackson SP, Xi P, Jin D. Multi-photon near-infrared emission saturation nanoscopy using upconversion nanoparticles. Nat Commun 2018; 9:3290. [PMID: 30120242 PMCID: PMC6098146 DOI: 10.1038/s41467-018-05842-w] [Citation(s) in RCA: 104] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Accepted: 07/26/2018] [Indexed: 01/03/2023] Open
Abstract
Multiphoton fluorescence microscopy (MPM), using near infrared excitation light, provides increased penetration depth, decreased detection background, and reduced phototoxicity. Using stimulated emission depletion (STED) approach, MPM can bypass the diffraction limitation, but it requires both spatial alignment and temporal synchronization of high power (femtosecond) lasers, which is limited by the inefficiency of the probes. Here, we report that upconversion nanoparticles (UCNPs) can unlock a new mode of near-infrared emission saturation (NIRES) nanoscopy for deep tissue super-resolution imaging with excitation intensity several orders of magnitude lower than that required by conventional MPM dyes. Using a doughnut beam excitation from a 980 nm diode laser and detecting at 800 nm, we achieve a resolution of sub 50 nm, 1/20th of the excitation wavelength, in imaging of single UCNP through 93 μm thick liver tissue. This method offers a simple solution for deep tissue super resolution imaging and single molecule tracking.
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Affiliation(s)
- Chaohao Chen
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Fan Wang
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia.
| | - Shihui Wen
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Qian Peter Su
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Mike C L Wu
- Heart Research Institute, and Charles Perkins Centre, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Yongtao Liu
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Baoming Wang
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Du Li
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Xuchen Shan
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Mehran Kianinia
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Igor Aharonovich
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Milos Toth
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Shaun P Jackson
- Heart Research Institute, and Charles Perkins Centre, University of Sydney, Camperdown, NSW, 2006, Australia
| | - Peng Xi
- Department of Biomedical Engineering, College of Engineering, Peking University, 100871, Beijing, China
| | - Dayong Jin
- Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia.
- ARC Research Hub for Integrated Device for End-user Analysis at Low-levels (IDEAL), Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia.
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15
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Joshi D, Hauser M, Veber G, Berl A, Xu K, Fischer FR. Super-Resolution Imaging of Clickable Graphene Nanoribbons Decorated with Fluorescent Dyes. J Am Chem Soc 2018; 140:9574-9580. [DOI: 10.1021/jacs.8b04679] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Dharati Joshi
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Meghan Hauser
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Gregory Veber
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Alexandra Berl
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ke Xu
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Division of Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Felix R. Fischer
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- Kavli Energy NanoSciences Institute at the University of California Berkeley and the Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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16
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Kianinia M, Bradac C, Sontheimer B, Wang F, Tran TT, Nguyen M, Kim S, Xu ZQ, Jin D, Schell AW, Lobo CJ, Aharonovich I, Toth M. All-optical control and super-resolution imaging of quantum emitters in layered materials. Nat Commun 2018; 9:874. [PMID: 29491451 PMCID: PMC5830405 DOI: 10.1038/s41467-018-03290-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 02/02/2018] [Indexed: 11/10/2022] Open
Abstract
Layered van der Waals materials are emerging as compelling two-dimensional platforms for nanophotonics, polaritonics, valleytronics and spintronics, and have the potential to transform applications in sensing, imaging and quantum information processing. Among these, hexagonal boron nitride (hBN) is known to host ultra-bright, room-temperature quantum emitters, whose nature is yet to be fully understood. Here we present a set of measurements that give unique insight into the photophysical properties and level structure of hBN quantum emitters. Specifically, we report the existence of a class of hBN quantum emitters with a fast-decaying intermediate and a long-lived metastable state accessible from the first excited electronic state. Furthermore, by means of a two-laser repumping scheme, we show an enhanced photoluminescence and emission intensity, which can be utilized to realize a new modality of far-field super-resolution imaging. Our findings expand current understanding of quantum emitters in hBN and show new potential ways of harnessing their nonlinear optical properties in sub-diffraction nanoscopy.
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Affiliation(s)
- Mehran Kianinia
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Carlo Bradac
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
| | - Bernd Sontheimer
- Institut für Physik, Humboldt-Universität zu Berlin, 12489, Berlin, Germany
| | - Fan Wang
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Toan Trong Tran
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Minh Nguyen
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Sejeong Kim
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Zai-Quan Xu
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Dayong Jin
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Andreas W Schell
- Department of Electronic Science and Engineering, Kyoto University, 615-8510, Kyoto, Japan
| | - Charlene J Lobo
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia
| | - Igor Aharonovich
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
| | - Milos Toth
- School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, NSW, 2007, Australia.
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17
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Li Z, Persson H, Adolfsson K, Abariute L, Borgström MT, Hessman D, Åström K, Oredsson S, Prinz CN. Cellular traction forces: a useful parameter in cancer research. NANOSCALE 2017; 9:19039-19044. [PMID: 29188243 DOI: 10.1039/c7nr06284b] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The search for new cancer biomarkers is essential for fundamental research, diagnostics, as well as for patient treatment and monitoring. Whereas most cancer biomarkers are biomolecules, an increasing number of studies show that mechanical cues are promising biomarker candidates. Although cell deformability has been shown to be a possible cancer biomarker, cellular forces as cancer biomarkers have been left largely unexplored. Here, we measure traction forces of cancer and normal-like cells at high spatial resolution using a robust method based on dense vertical arrays of nanowires. A force map is created using automated image analysis based on the localization of the fluorescent tips of the nanowires. We show that the force distribution and magnitude differ between MCF7 breast cancer cells and MCF10A normal-like breast epithelial cells, and that monitoring traction forces can be used to investigate the effects of anticancer drugs.
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Affiliation(s)
- Zhen Li
- Division of Solid State Physics, Lund University, 221 00 Lund, Sweden.
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18
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Shikha S, Salafi T, Cheng J, Zhang Y. Versatile design and synthesis of nano-barcodes. Chem Soc Rev 2017; 46:7054-7093. [DOI: 10.1039/c7cs00271h] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
Abstract
This review provides a critical discussion on the versatile designing and usage of nano-barcodes for various existing and emerging applications.
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Affiliation(s)
- Swati Shikha
- Department of Biomedical Engineering
- Faculty of Engineering
- National University of Singapore (NUS)
- 117583 Singapore
| | - Thoriq Salafi
- Department of Biomedical Engineering
- Faculty of Engineering
- National University of Singapore (NUS)
- 117583 Singapore
- NUS Graduate School for Integrative Sciences and Engineering
| | - Jinting Cheng
- Institute of Materials Research and Engineering (IMRE)
- Agency for Science
- Technology and Research (A*STAR)
- Singapore
| | - Yong Zhang
- Department of Biomedical Engineering
- Faculty of Engineering
- National University of Singapore (NUS)
- 117583 Singapore
- NUS Graduate School for Integrative Sciences and Engineering
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