1
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Dalaka E, Hill JS, Booth JHH, Popczyk A, Pulver SR, Gather MC, Schubert M. Deformable microlaser force sensing. LIGHT, SCIENCE & APPLICATIONS 2024; 13:129. [PMID: 38834554 DOI: 10.1038/s41377-024-01471-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Revised: 04/30/2024] [Accepted: 05/08/2024] [Indexed: 06/06/2024]
Abstract
Mechanical forces are key regulators of cellular behavior and function, affecting many fundamental biological processes such as cell migration, embryogenesis, immunological responses, and pathological states. Specialized force sensors and imaging techniques have been developed to quantify these otherwise invisible forces in single cells and in vivo. However, current techniques rely heavily on high-resolution microscopy and do not allow interrogation of optically dense tissue, reducing their application to 2D cell cultures and highly transparent biological tissue. Here, we introduce DEFORM, deformable microlaser force sensing, a spectroscopic technique that detects sub-nanonewton forces with unprecedented spatio-temporal resolution. DEFORM is based on the spectral analysis of laser emission from dye-doped oil microdroplets and uses the force-induced lifting of laser mode degeneracy in these droplets to detect nanometer deformations. Following validation by atomic force microscopy and development of a model that links changes in laser spectrum to applied force, DEFORM is used to measure forces in 3D and at depths of hundreds of microns within tumor spheroids and late-stage Drosophila larva. We furthermore show continuous force sensing with single-cell spatial and millisecond temporal resolution, thus paving the way for non-invasive studies of biomechanical forces in advanced stages of embryogenesis, tissue remodeling, and tumor invasion.
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Affiliation(s)
- Eleni Dalaka
- Centre of Biophotonics, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
- Institute for Bioengineering of Catalonia, Barcelona, Spain
| | - Joseph S Hill
- Centre of Biophotonics, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK
- Humboldt Centre for Nano- and Biophotonics, Department of Chemistry, University of Cologne, Köln, Germany
| | - Jonathan H H Booth
- Humboldt Centre for Nano- and Biophotonics, Department of Chemistry, University of Cologne, Köln, Germany
- School of Psychology and Neuroscience, University of St Andrews, St Mary's Quad, South Street, St Andrews, UK
| | - Anna Popczyk
- Humboldt Centre for Nano- and Biophotonics, Department of Chemistry, University of Cologne, Köln, Germany
| | - Stefan R Pulver
- School of Psychology and Neuroscience, University of St Andrews, St Mary's Quad, South Street, St Andrews, UK
| | - Malte C Gather
- Centre of Biophotonics, SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, UK.
- Humboldt Centre for Nano- and Biophotonics, Department of Chemistry, University of Cologne, Köln, Germany.
| | - Marcel Schubert
- Humboldt Centre for Nano- and Biophotonics, Department of Chemistry, University of Cologne, Köln, Germany.
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2
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Eling CJ, Bruce N, Gunasekar NK, Alves PU, Edwards PR, Martin RW, Laurand N. Biotinylated Photocleavable Semiconductor Colloidal Quantum Dot Supraparticle Microlaser. ACS APPLIED NANO MATERIALS 2024; 7:9159-9166. [PMID: 38694721 PMCID: PMC11059076 DOI: 10.1021/acsanm.4c00668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 05/04/2024]
Abstract
Luminescent supraparticles of colloidal semiconductor nanocrystals can act as microscopic lasers and are hugely attractive for biosensing, imaging, and drug delivery. However, biointerfacing these to increase functionality while retaining their main optical properties remains an unresolved challenge. Here, we propose and demonstrate red-emitting, silica-coated CdSxSe1-x/ZnS colloidal quantum dot supraparticles functionalized with a biotinylated photocleavable ligand. The success of each step of the synthesis is confirmed by scanning electron microscopy, energy dispersive X-ray and Fourier transform infrared spectroscopy, ζ-potential, and optical pumping measurements. The capture and release functionality of the supraparticle system is proven by binding to a neutravidin functionalized glass slide and subsequently cleaving off after UV-A irradiation. The biotinylated supraparticles still function as microlasers; e.g., a 9 μm diameter supraparticle has oscillating modes around 625 nm at a threshold of 58 mJ/cm2. This work is a first step toward using supraparticle lasers as enhanced labels for bionano applications.
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Affiliation(s)
- Charlotte J. Eling
- Institute
of Photonics, Department of Physics, SUPA,
University of Strathclyde, Glasgow G1 1RD, U.K.
| | - Natalie Bruce
- Institute
of Photonics, Department of Physics, SUPA,
University of Strathclyde, Glasgow G1 1RD, U.K.
- Fraunhofer
Centre for Applied Photonics, 99 George Street, Glasgow G1 1RD, U.K.
| | - Naresh-Kumar Gunasekar
- Department
of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, U.K.
- Institute
for Compound Semiconductors, School of Physics and Astronomy, Cardiff University, Cardiff CF24 3AA, U.K.
| | - Pedro Urbano Alves
- Institute
of Photonics, Department of Physics, SUPA,
University of Strathclyde, Glasgow G1 1RD, U.K.
| | - Paul R. Edwards
- Department
of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, U.K.
| | - Robert W. Martin
- Department
of Physics, SUPA, University of Strathclyde, Glasgow G4 0NG, U.K.
| | - Nicolas Laurand
- Institute
of Photonics, Department of Physics, SUPA,
University of Strathclyde, Glasgow G1 1RD, U.K.
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3
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Titze VM, Caixeiro S, Dinh VS, König M, Rübsam M, Pathak N, Schumacher AL, Germer M, Kukat C, Niessen CM, Schubert M, Gather MC. Hyperspectral confocal imaging for high-throughput readout and analysis of bio-integrated microlasers. Nat Protoc 2024; 19:928-959. [PMID: 38238582 DOI: 10.1038/s41596-023-00924-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 10/03/2023] [Indexed: 03/10/2024]
Abstract
Integrating micro- and nanolasers into live cells, tissue cultures and small animals is an emerging and rapidly evolving technique that offers noninvasive interrogation and labeling with unprecedented information density. The bright and distinct spectra of such lasers make this approach particularly attractive for high-throughput applications requiring single-cell specificity, such as multiplexed cell tracking and intracellular biosensing. The implementation of these applications requires high-resolution, high-speed spectral readout and advanced analysis routines, which leads to unique technical challenges. Here, we present a modular approach consisting of two separate procedures. The first procedure instructs users on how to efficiently integrate different types of lasers into living cells, and the second procedure presents a workflow for obtaining intracellular lasing spectra with high spectral resolution and up to 125-kHz readout rate and starts from the construction of a custom hyperspectral confocal microscope. We provide guidance on running hyperspectral imaging routines for various experimental designs and recommend specific workflows for processing the resulting large data sets along with an open-source Python library of functions covering the analysis pipeline. We illustrate three applications including the rapid, large-volume mapping of absolute refractive index by using polystyrene microbead lasers, the intracellular sensing of cardiac contractility with polystyrene microbead lasers and long-term cell tracking by using semiconductor nanodisk lasers. Our sample preparation and imaging procedures require 2 days, and setting up the hyperspectral confocal microscope for microlaser characterization requires <2 weeks to complete for users with limited experience in optical and software engineering.
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Affiliation(s)
- Vera M Titze
- Centre of Biophotonics, School of Physics and Astronomy, University of St Andrews, St Andrews, UK.
- Humboldt Centre for Nano- and Biophotonics, University of Cologne, Cologne, Germany.
| | - Soraya Caixeiro
- Humboldt Centre for Nano- and Biophotonics, University of Cologne, Cologne, Germany
| | - Vinh San Dinh
- Centre of Biophotonics, School of Physics and Astronomy, University of St Andrews, St Andrews, UK
- Graduate Program in Applied Physics, Northwestern University, Evanston, Illinois, USA
| | - Matthias König
- Humboldt Centre for Nano- and Biophotonics, University of Cologne, Cologne, Germany
| | - Matthias Rübsam
- Department of Cell Biology of the Skin, University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Disease (CECAD), University of Cologne, Cologne, Germany
| | - Nachiket Pathak
- Humboldt Centre for Nano- and Biophotonics, University of Cologne, Cologne, Germany
| | - Anna-Lena Schumacher
- FACS & Imaging Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Maximilian Germer
- FACS & Imaging Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Christian Kukat
- FACS & Imaging Core Facility, Max Planck Institute for Biology of Ageing, Cologne, Germany
| | - Carien M Niessen
- Department of Cell Biology of the Skin, University Hospital Cologne, University of Cologne, Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Disease (CECAD), University of Cologne, Cologne, Germany
| | - Marcel Schubert
- Centre of Biophotonics, School of Physics and Astronomy, University of St Andrews, St Andrews, UK.
- Humboldt Centre for Nano- and Biophotonics, University of Cologne, Cologne, Germany.
| | - Malte C Gather
- Centre of Biophotonics, School of Physics and Astronomy, University of St Andrews, St Andrews, UK.
- Humboldt Centre for Nano- and Biophotonics, University of Cologne, Cologne, Germany.
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Disease (CECAD), University of Cologne, Cologne, Germany.
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4
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Kavčič A, Podlipec R, Krišelj A, Jelen A, Vella D, Humar M. Intracellular biocompatible hexagonal boron nitride quantum emitters as single-photon sources and barcodes. NANOSCALE 2024; 16:4691-4702. [PMID: 38319598 PMCID: PMC10903403 DOI: 10.1039/d3nr05305a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2024]
Abstract
Color centers in hexagonal boron nitride (hBN) have been emerging as a multifunctional platform for various optical applications including quantum information processing, quantum computing and imaging. Simultaneously, due to its biocompatibility and biodegradability hBN is a promising material for biomedical applications. In this work, we demonstrate single-photon emission from hBN color centers embedded inside live cells and their application to cellular barcoding. The generation and internalization of multiple color centers into cells was performed via simple and scalable procedure while keeping the cells unharmed. The emission from live cells was observed as multiple diffraction-limited spots, which exhibited excellent single-photon characteristics with high single-photon purity of 0.1 and superb emission stability without photobleaching or spectral shifts over several hours. Due to different emission wavelengths and peak widths of the color centers, they were employed as barcodes. We term them Quantum Photonic Barcodes (QPBs). Each QPB can exist in one out of 470 possible distinguishable states and a combination of a few QPBs per cell can be used to uniquely tag virtually an unlimited number of cells. The barcodes developed here offer some excellent properties, including ease of production by a single-step procedure, biocompatibility and biodegradability, emission stability, no photobleaching, small size and a huge number of unique barcodes. This work provides a basis for the use of hBN color centers for robust barcoding of cells and due to the single photon emission, presented concepts could in future be extended to quantum-limited sensing and super-resolution imaging.
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Affiliation(s)
- Aljaž Kavčič
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000, Ljubljana, Slovenia
| | - Rok Podlipec
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
- Helmholtz-Zentrum Dresden-Rossendorf e.V., Ion Beam Center, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Ana Krišelj
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
| | - Andreja Jelen
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
| | - Daniele Vella
- Faculty of Mechanical Engineering, Laboratory for Laser Techniques, University of Ljubljana, Aškerčeva 6, SI-1000 Ljubljana, Slovenia
| | - Matjaž Humar
- Condensed Matter Department, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
- Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000, Ljubljana, Slovenia
- CENN Nanocenter, Jamova 39, SI-1000 Ljubljana, Slovenia
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5
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Suo M, Fu Y, Wang S, Lin S, Zhang J, Wu C, Yin H, Wang P, Zhang W, Wang XH. Miniaturized Laser Probe for Exosome-Based Cancer Liquid Biopsy. Anal Chem 2024; 96:1965-1976. [PMID: 38267074 DOI: 10.1021/acs.analchem.3c04187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
Exosomes have been established as a valuable tool for clinical applications for the purpose of liquid biopsy and therapy. However, the clinical practice of exosomes as cancer biopsy markers is still to a very low extent. Active mode optical microcavity with microlaser emission has aroused as a versatile approach for chemical and biological sensing due to its benefits of larger photon population, increased effective Q-factor, decreased line width, and improved sensitivity. Herein, we report a label-free and precise quantification of exosome vesicles and surface protein profiling of breast cancer exosomes using functionalized active whispering gallery mode (WGM) microlaser probes. A detection limit of 40 exosomes per microresonator was achieved. The proposed system enabled a pilot assay of quantitative exosome analysis in cancer patients' blood with only a few microliters of sample consumption, holding good potential for large-scale cancer liquid biopsy. Multiplexed functionalization of the optical microresonator allowed us to profile cancer exosomal surface markers and distinct subclasses of breast cancer-associated exosomes and monitor drug treatment outcomes. Our findings speak volumes about the advantages of the WGM microlaser sensor, including very small sample consumption, low detection limit, high specificity, and ease of operation, offering a promising means for precious clinical sample analysis.
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Affiliation(s)
- Mingqian Suo
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Yiqian Fu
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Shijia Wang
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Siqi Lin
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Jiahui Zhang
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Chunxiao Wu
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
| | - Huabing Yin
- Department of Biomedical Engineering, James Watt School of Engineering, University of Glasgow, Glasgow G12 8LT, United Kingdom
| | - Pu Wang
- Laboratory for Advanced Laser Technology and Applications, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
- Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Center of Laser Technology, Beijing 100124, China
| | - Wen Zhang
- Department of Immunology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Xiu-Hong Wang
- Laboratory for Biomedical Photonics, Institute of Laser Engineering, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, China
- Key Laboratory of Trans-scale Laser Manufacturing Technology, Ministry of Education, Beijing 100124, China
- Beijing Engineering Research Center of Laser Technology, Beijing 100124, China
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6
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Zhou X, Gather MC, Scarcelli G. High-Sensitivity Detection of Changes in Local Refractive Index and Absorption by Analyzing WGM Microlaser Emission via a 2D Dispersion Spectrometer. ACS PHOTONICS 2024; 11:267-275. [PMID: 38249682 PMCID: PMC10798258 DOI: 10.1021/acsphotonics.3c01448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 01/23/2024]
Abstract
Microlasers have been widely used in biosensing applications because of their high sensitivity to changes in local conditions. However, in most applications, the sensitivity limit is not dictated by the microlaser line width but rather by the much worse spectral resolution of the detection system, typically a grating spectrometer. To address this issue, we built and characterized a two-dimensional (2D) dispersion spectrometer with a virtually imaged phase array etalon and a diffraction grating. The spectrometer can analyze microlaser emission with a spectral resolution of better than 0.300 pm, which enables high-precision measurements of spectral shifts in laser peak emission wavelength and sufficient resolution to detect changes in peak line width. Using commercial fluorescent microspheres as the microlasers, the 2D dispersion spectrometer demonstrated a detection limit for the refractive index change of a liquid medium of 1.37 × 10-5 RIU and a detection limit for absorption changes of less than 0.02 cm-1.
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Affiliation(s)
- Xuewen Zhou
- Fischell
Department of Bioengineering, University
of Maryland, College
Park, Maryland 20742, United States
| | - Malte C. Gather
- Humboldt
Centre for Nano- and Biophotonics, Department of Chemistry, University of Cologne, Greinstrasse 4–6, 50939 Köln, Germany
| | - Giuliano Scarcelli
- Fischell
Department of Bioengineering, University
of Maryland, College
Park, Maryland 20742, United States
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7
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Nowaczyński R, Paszke P, Csaki A, Mazuryk J, Rożniatowski K, Piotrowski P, Pawlak DA. Functionalization of Phosphate and Tellurite Glasses and Spherical Whispering Gallery Mode Microresonators. ACS OMEGA 2023; 8:48159-48165. [PMID: 38144065 PMCID: PMC10734010 DOI: 10.1021/acsomega.3c07075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 11/10/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
Active whispering gallery mode resonators made as spherical microspheres doped with quantum dots or rare earth ions achieve high quality factors and are excellent candidates for biosensors capable of detecting biomolecules at low concentrations. However, to produce quantum dot-doped microspheres, new low melting temperature glasses are sought, which require surface functionalization and antibody immobilization for biosensor development. Here, we demonstrate the successful functionalization of three low melting point glasses and microspheres made of them. The glasses were made from sodium borophosphate, sodium aluminophosphate, and tellurite, and then, they were functionalized using (3-glycidyloxypropyl)trimethoxysilane in ethanol- and toluene-based protocols. Proper silanization was confirmed by energy-dispersive X-ray spectroscopy and fluorescence microscopy of an amino-modified luminescent oligonucleotide probe. Fluorescence imaging showed successful silanization for all tested samples and no degradation for aluminophosphate and tellurite glasses. The strongest signal was registered for tellurite glass samples functionalized using the toluene-based silanization protocol. This conclusion implies that this functionalization method is the most efficient and is highly recommended for future antibody immobilization and biosensing application.
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Affiliation(s)
- Rafał Nowaczyński
- Faculty
of Materials Science and Engineering, Warsaw
University of Technology, Woloska 141, 02-507 Warsaw, Poland
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
| | - Piotr Paszke
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- ENSEMBLE3
Centre of Excellence, Wolczynska 133, 01-919 Warsaw, Poland
| | - Andrea Csaki
- Leibniz
Institute of Photonic Technology, Albert-Einstein-Str. 9, 07745 Jena, Germany
| | - Jarosław Mazuryk
- Department
of Electrode Processes, Institute of Physical
Chemistry Polish Academy of Sciences, Marcina Kasprzaka 44/52, 01-224 Warsaw, Poland
- Bio
&
Soft Matter Group, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, 1 Place Louis Pasteur, 1348 Louvain-la-Neuve, Belgium
| | - Krzysztof Rożniatowski
- Faculty
of Materials Science and Engineering, Warsaw
University of Technology, Woloska 141, 02-507 Warsaw, Poland
| | - Piotr Piotrowski
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- ENSEMBLE3
Centre of Excellence, Wolczynska 133, 01-919 Warsaw, Poland
| | - Dorota Anna Pawlak
- Department
of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland
- ENSEMBLE3
Centre of Excellence, Wolczynska 133, 01-919 Warsaw, Poland
- Łukasiewicz
Research Network - Institute of Microelectronics and Photonics, Wolczynska 133, 01-919 Warsaw, Poland
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8
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Caixeiro S, Wijesinghe P, Dholakia K, Gather MC. Snapshot hyperspectral imaging of intracellular lasers. OPTICS EXPRESS 2023; 31:33175-33190. [PMID: 37859103 DOI: 10.1364/oe.498022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/18/2023] [Indexed: 10/21/2023]
Abstract
Intracellular lasers are emerging as powerful biosensors for multiplexed tracking and precision sensing of cells and their microenvironment. This sensing capacity is enabled by quantifying their narrow-linewidth emission spectra, which is presently challenging to do at high speeds. In this work, we demonstrate rapid snapshot hyperspectral imaging of intracellular lasers. Using integral field mapping with a microlens array and a diffraction grating, we obtain images of the spatial and spectral intensity distribution from a single camera acquisition. We demonstrate widefield hyperspectral imaging over a 3 × 3 mm2 field of view and volumetric imaging over 250 × 250 × 800 µm3 (XYZ) volumes with a lateral (XY) resolution of 5 µm, axial (Z) resolution of 10 µm, and a spectral resolution of less than 0.8 nm. We evaluate the performance and outline the challenges and strengths of snapshot methods in the context of characterizing the emission from intracellular lasers. This method offers new opportunities for a diverse range of applications, including high-throughput and long-term biosensing with intracellular lasers.
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9
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Kim KH, Yan H, Yun SH. Aggregation-Induced Stimulated Emission of 100% Dye Microspheres. ADVANCED OPTICAL MATERIALS 2023; 11:2202956. [PMID: 38107448 PMCID: PMC10723759 DOI: 10.1002/adom.202202956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Indexed: 12/19/2023]
Abstract
Dyes with aggregation-induced emission (AIE) properties have gained interests due to their bright luminescence in solid-state aggregates. While fluorescence from AIE dyes have been widely exploited, relatively little is known about aggregation-induced stimulated emission. Here, we investigated stimulated emission of tetraphenylethene (TPE)-based organoboron AIE dyes, TPEQBN, in thin films and in microcavity lasers. Using femtosecond pump-probe spectroscopy, gain coefficients up to 230 cm-1 at 500 nm were measured. Using rate equations, we analyzed concentration- and pump-dependent gain dynamics as well as laser build up dynamics. During laser oscillation, radiative stimulated emission allows high instantaneous quantum yield greater than 90% to be achieved. We fabricated solid-state microspheres made of 100% AIE dyes via microfluidic emulsion and solvent evaporation method. Coupled with high gain and high refractive index of 1.76, microspheres as small as 2 μm in diameter showed lasing by nanosecond pumping with a threshold of ~10 pJ μm-2. Polymer coated, but not bare, microspheres were internalized by live cells and generated narrowband cavity mode emission from within the cytoplasm. Our work shows the potential of AIE dyes as laser materials.
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Affiliation(s)
- Kwon-Hyeon Kim
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne St., Cambridge, MA 02139, USA
| | - Hao Yan
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne St., Cambridge, MA 02139, USA
| | - Seok-Hyun Yun
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne St., Cambridge, MA 02139, USA
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10
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Anwar A, Mur M, Humar M. Microcavity- and Microlaser-Based Optical Barcoding: A Review of Encoding Techniques and Applications. ACS PHOTONICS 2023; 10:1202-1224. [PMID: 37215324 PMCID: PMC10197175 DOI: 10.1021/acsphotonics.2c01611] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Indexed: 05/24/2023]
Abstract
Optical microbarcodes have recently received a great deal of interest because of their suitability for a wide range of applications, such as multiplexed assays, cell tagging and tracking, anticounterfeiting, and product labeling. Spectral barcodes are especially promising because they are robust and have a simple readout. In addition, microcavity- and microlaser-based barcodes have very narrow spectra and therefore have the potential to generate millions of unique barcodes. This review begins with a discussion of the different types of barcodes and then focuses specifically on microcavity-based barcodes. While almost any kind of optical microcavity can be used for barcoding, currently whispering-gallery microcavities (in the form of spheres and disks), nanowire lasers, Fabry-Pérot lasers, random lasers, and distributed feedback lasers are the most frequently employed for this purpose. In microcavity-based barcodes, the information is encoded in various ways in the properties of the emitted light, most frequently in the spectrum. The barcode is dependent on the properties of the microcavity, such as the size, shape, and the gain materials. Various applications of these barcodes, including cell tracking, anticounterfeiting, and product labeling are described. Finally, the future prospects for microcavity- and microlaser-based barcodes are discussed.
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Affiliation(s)
- Abdur
Rehman Anwar
- Department
of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Maruša Mur
- Department
of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
| | - Matjaž Humar
- Department
of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia
- CENN
Nanocenter, Jamova 39, SI-1000 Ljubljana, Slovenia
- Faculty
of Mathematics and Physics, University of
Ljubljana, Jadranska
19, SI-1000 Ljubljana, Slovenia
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11
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Dannenberg PH, Liapis AC, Martino N, Sarkar D, Kim KH, Yun SH. Facile layer-by-layer fabrication of semiconductor microdisk laser particles. APL PHOTONICS 2023; 8:021301. [PMID: 38031595 PMCID: PMC10686341 DOI: 10.1063/5.0130792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
Semiconductor-based laser particles (LPs) with exceptionally narrowband spectral emission have been used in biological systems for cell tagging purposes. Fabrication of these LPs typically requires highly specialized lithography and etching equipment, and is typically done in a cleanroom environment, hindering the broad adoption of this exciting new technology. Here, using only easily accessible laboratory equipment, we demonstrate a simple layer-by-layer fabrication strategy that overcomes this obstacle. We start from an indium phosphide (InP) substrate with multiple epitaxial indium gallium arsenide phosphide (InGaAsP) layers which are sequentially processed to yield LPs of various compositions and spectral properties. The LPs isolated from each layer are characterized, exhibiting excellent optical properties with lasing emission full width at half maximum as narrow as < 0.3 nm and typical thresholds of approximately 6 pJ upon excitation using a 3 ns pulse duration 1064 nm pump laser. The high quality of these particles renders them suitable for large-scale biological experiments including those requiring spectral multiplexing.
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Affiliation(s)
- Paul H Dannenberg
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Andreas C Liapis
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Nicola Martino
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Debarghya Sarkar
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Kwon-Hyeon Kim
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Seok-Hyun Yun
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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12
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Demonstration of intracellular real-time molecular quantification via FRET-enhanced optical microcavity. Nat Commun 2022; 13:6685. [PMID: 36335126 PMCID: PMC9637138 DOI: 10.1038/s41467-022-34547-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 10/24/2022] [Indexed: 11/08/2022] Open
Abstract
Single cell analysis is crucial for elucidating cellular diversity and heterogeneity as well as for medical diagnostics operating at the ultimate detection limit. Although superbly sensitive biosensors have been developed using the strongly enhanced evanescent fields provided by optical microcavities, real-time quantification of intracellular molecules remains challenging due to the extreme low quantity and limitations of the current techniques. Here, we introduce an active-mode optical microcavity sensing stage with enhanced sensitivity that operates via Förster resonant energy transferring (FRET) mechanism. The mutual effects of optical microcavity and FRET greatly enhances the sensing performance by four orders of magnitude compared to pure Whispering gallery mode (WGM) microcavity sensing system. We demonstrate distinct sensing mechanism of FRET-WGM from pure WGM. Predicted lasing wavelengths of both donor and acceptor by theoretical calculations are in perfect agreement with the experimental data. The proposed sensor enables quantitative molecular analysis at single cell resolution, and real-time monitoring of intracellular molecules over extended periods while maintaining the cell viability. By achieving high sensitivity at single cell level, our approach provides a path toward FRET-enhanced real-time quantitative analysis of intracellular molecules.
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13
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Zhao S, Li G, Peng X, Ma J, Yin Z, Zhao Q. Ultralow-threshold green fluorescent protein laser based on high Q microbubble resonators. OPTICS EXPRESS 2022; 30:23439-23447. [PMID: 36225023 DOI: 10.1364/oe.460985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 06/02/2022] [Indexed: 06/16/2023]
Abstract
Biological lasers have attracted vast attention because of their potential medical application prospects, especially the low threshold biological laser that can be used for ultrasensitive biological detection while leaving the luminous gain medium undamaged by the pump light. By coupling the low concentration green fluorescent protein (GFP) solution with a high Q whispering gallery mode microbubble resonator, we managed to fabricate a miniature GFP laser with the lowest threshold and highest Q value compared to any known type of the GFP laser. The threshold energy is as low as 380 fJ, two orders of magnitude lower than any type of GFP laser at present. The Q value of the optical cavity in this biological laser is 5.3 × 107, two orders higher than the highest Q value of GFP lasers. We further confirmed the long-term stability of the working characteristics of GFP laser. It can work well nearly a month in temperature 3-4°C. Finally, we measured the effects of different concentrations of fluorescent protein on laser threshold. The data show that this biological laser can be used for highly sensitive detection of GFP concentration, which is particularly useful when the GFP is used as tracers.
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14
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Shan H, Dai H, Chen X. Monitoring Various Bioactivities at the Molecular, Cellular, Tissue, and Organism Levels via Biological Lasers. SENSORS (BASEL, SWITZERLAND) 2022; 22:3149. [PMID: 35590841 PMCID: PMC9102053 DOI: 10.3390/s22093149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/16/2022] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Abstract
The laser is considered one of the greatest inventions of the 20th century. Biolasers employ high signal-to-noise ratio lasing emission rather than regular fluorescence as the sensing signal, directional out-coupling of lasing and excellent biocompatibility. Meanwhile, biolasers can also be micro-sized or smaller lasers with embedded/integrated biological materials. This article presents the progress in biolasers, focusing on the work done over the past years, including the molecular, cellular, tissue, and organism levels. Furthermore, biolasers have been utilized and explored for broad applications in biosensing, labeling, tracking, bioimaging, and biomedical development due to a number of unique advantages. Finally, we provide the possible directions of biolasers and their applications in the future.
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Affiliation(s)
- Hongrui Shan
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China; (H.S.); (H.D.)
| | - Hailang Dai
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China; (H.S.); (H.D.)
| | - Xianfeng Chen
- State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, China; (H.S.); (H.D.)
- Collaborative Innovation Center of Light Manipulations and Applications, Shandong Normal University, Jinan 250358, China
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15
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Prasetyanto EA, Wasisto HS, Septiadi D. Cellular lasers for cell imaging and biosensing. Acta Biomater 2022; 143:39-51. [PMID: 35314365 DOI: 10.1016/j.actbio.2022.03.031] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/08/2022] [Accepted: 03/14/2022] [Indexed: 11/27/2022]
Abstract
The possibility to produce laser action involving biomaterials, in particular (single) biological cells, has fostered the development of cellular lasers as a novel approach in biophotonics. In this respect, cells that are engineered to carry gain medium (e.g., fluorescent dyes or proteins) are placed inside an optical cavity (i.e., typically a sandwich of highly reflective mirrors), allowing the generation of stimulated emission upon sufficient optical pumping. In another scenario, micron-sized optical resonators supporting whispering-gallery mode (WGM) or semiconductor-based laser probes can be internalized by the cells and support light amplification. This review summarizes the recent advances in the fields of biolasers and cellular lasers, and most importantly, highlights their potential applications in the fields of in vitro and in vivo cell imaging and analysis. They include biosensing (e.g., in vitro detection of sodium chloride (NaCl) concentration), cancer cell imaging, laser-emission-based microscope, cell tracking, cell distinction study, and tissue contraction monitoring in zebrafish. Lastly, several fundamental issues in developing cellular lasers including laser probe fabrication, biocompatibility of the system, and alteration of local refractive index of optical cavities due to protein absorption or probe aggregation are described. Cellular lasers are foreseen as a promising tool to study numerous biological and biophysical phenomena. STATEMENT OF SIGNIFICANCE: Biolasers are generation of laser involving biological materials. Biomaterials, including single cells, can be engineered to incorporate laser probes or fluorescent proteins or fluorophores, and the resulting light emission can be coupled to optical resonator, allowing generation of cellular laser emission upon optical pumping. Unlike fluorescence, this stimulated emission is very sensitive and is capable of detecting small alterations in the optical property of the cells and their environment. In this review, recent development and applications of cellular lasers in the fields of in vitro and in vivo cell imaging, cell tracking, biosensing, and cell/tissue analysis are highlighted. Several challenges in developing cellular lasers including probe fabrication and biocompatibility as well as alteration of cellular environment are explained.
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Affiliation(s)
- Eko Adi Prasetyanto
- Department of Pharmacy, School of Medicine and Health Sciences, Atma Jaya Catholic University, Jl. Pluit Raya 2, Jakarta 14440, Indonesia
| | | | - Dedy Septiadi
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, Fribourg 1700, Switzerland.
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16
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Titze VM, Caixeiro S, Di Falco A, Schubert M, Gather MC. Red-Shifted Excitation and Two-Photon Pumping of Biointegrated GaInP/AlGaInP Quantum Well Microlasers. ACS PHOTONICS 2022; 9:952-960. [PMID: 35434182 PMCID: PMC9007562 DOI: 10.1021/acsphotonics.1c01807] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Indexed: 06/01/2023]
Abstract
Biointegrated intracellular microlasers have emerged as an attractive and versatile tool in biophotonics. Different inorganic semiconductor materials have been used for the fabrication of such biocompatible microlasers but often operate at visible wavelengths ill-suited for imaging through tissue. Here, we report on whispering gallery mode microdisk lasers made from a range of GaInP/AlGaInP multi-quantum well structures with compositions tailored to red-shifted excitation and emission. The selected semiconductor alloys show minimal toxicity and allow the fabrication of lasers with stable single-mode emission in the NIR (675-720 nm) and sub-pJ thresholds. The microlasers operate in the first therapeutic window under direct excitation by a conventional diode laser and can also be pumped in the second therapeutic window using two-photon excitation at pulse energies compatible with standard multiphoton microscopy. Stable performance is observed under cell culturing conditions for 5 days without any device encapsulation. With their bio-optimized spectral characteristics, low lasing threshold, and compatibility with two-photon pumping, AlGaInP-based microlasers are ideally suited for novel cell tagging and in vivo sensing applications.
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Affiliation(s)
- Vera M. Titze
- SUPA,
School of Physics and Astronomy, University
of St Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
| | - Soraya Caixeiro
- SUPA,
School of Physics and Astronomy, University
of St Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
| | - Andrea Di Falco
- SUPA,
School of Physics and Astronomy, University
of St Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
| | - Marcel Schubert
- SUPA,
School of Physics and Astronomy, University
of St Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
- Humboldt
Centre for Nano- and Biophotonics, Institute of Physical Chemistry, University of Cologne, Greinstr. 4-6, D-50939 Cologne, Germany
| | - Malte C. Gather
- SUPA,
School of Physics and Astronomy, University
of St Andrews, North Haugh, St Andrews KY16 9SS, United Kingdom
- Humboldt
Centre for Nano- and Biophotonics, Institute of Physical Chemistry, University of Cologne, Greinstr. 4-6, D-50939 Cologne, Germany
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17
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Kavčič A, Garvas M, Marinčič M, Unger K, Coclite AM, Majaron B, Humar M. Deep tissue localization and sensing using optical microcavity probes. Nat Commun 2022; 13:1269. [PMID: 35277496 PMCID: PMC8917156 DOI: 10.1038/s41467-022-28904-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 02/15/2022] [Indexed: 11/09/2022] Open
Abstract
AbstractOptical microcavities and microlasers were recently introduced as probes inside living cells and tissues. Their main advantages are spectrally narrow emission lines and high sensitivity to the environment. Despite numerous novel methods for optical imaging in strongly scattering biological tissues, imaging at single-cell resolution beyond the ballistic light transport regime remains very challenging. Here, we show that optical microcavity probes embedded inside cells enable three-dimensional localization and tracking of individual cells over extended time periods, as well as sensing of their environment, at depths well beyond the light transport length. This is achieved by utilizing unique spectral features of the whispering-gallery modes, which are unaffected by tissue scattering, absorption, and autofluorescence. In addition, microcavities can be functionalized for simultaneous sensing of various parameters, such as temperature or pH value, which extends their versatility beyond the capabilities of standard fluorescent labels.
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18
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Xu Z, Hong Q, Ge K, Shi X, Wang X, Deng J, Zhou Z, Zhai T. Random Lasing from Label-Free Living Cells for Rapid Cytometry of Apoptosis. NANO LETTERS 2022; 22:172-178. [PMID: 34978455 DOI: 10.1021/acs.nanolett.1c03580] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
A random laser carrying the scattering information on a biological host is a promising tool for the characterization of biophysical properties. In this work, random lasing from label-free living cells is proposed to achieve rapid cytometry of apoptosis. Random lasing is achieved by adding biocompatible gain medium to a confocal dish containing cells under optically pumped conditions. The random lasing characteristics are distinct at different stages of cell apoptosis after drug treatment. By analyzing the power Fourier transform results of the random lasing spectra, the percentage of apoptotic cells could be distinguished within two seconds, which is more than an order of magnitude faster than traditional flow cytometry. These results provide a label-free approach for rapid cytometry of apoptosis, which is advantageous for further research of random lasers in the biological field.
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Affiliation(s)
- Zhiyang Xu
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
| | - Qihao Hong
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Kun Ge
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
| | - Xiaoyu Shi
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
| | - Xiaolei Wang
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
| | - Jinxiang Deng
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
| | - ZhiXiang Zhou
- Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China
| | - Tianrui Zhai
- College of Physics and Optoelectronics, Faculty of Science, Beijing University of Technology, Beijing 100124, China
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19
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Qiao Z, Xu H, Zhang N, Gong X, Gong C, Yang G, Chew SY, Huang C, Chen Y. Cellular Features Revealed by Transverse Laser Modes in Frequency Domain. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2103550. [PMID: 34841743 PMCID: PMC8728842 DOI: 10.1002/advs.202103550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 10/27/2021] [Indexed: 06/13/2023]
Abstract
Biological lasers which utilize Fabry-Pérot (FP) cavities have attracted tremendous interest due to their potential in amplifying subtle biological changes. Transverse laser modes generated from cells serve as distinct fingerprints of individual cells; however, most lasing signals lack the ability to provide key information about the cell due to high complexity of transverse modes. The missing key, therefore, hinders it from practical applications in biomedicine. This study reveals the key mechanism governing the frequency distributions of transverse modes in cellular lasers. Spatial information of cells including curvature can be interpreted through spectral information of transverse modes by means of hyperspectral imaging. Theoretical studies are conducted to explore the correlation between the cross-sectional morphology of a cell and lasing frequencies of transverse modes. Experimentally, the spectral characteristics of transverse modes are investigated in live and fixed cells with different morphological features. By extracting laser modes in frequency domain, the proposed concept is applied for studying cell adhesion process and cell classification from rat cortices. This study expands a new analytical dimension of cell lasers, opening an avenue for subcellular analysis in biophotonic applications.
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Affiliation(s)
- Zhen Qiao
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
| | - Hongmei Xu
- School of Mechanical and Aerospace EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
| | - Na Zhang
- School of Chemical and Biomedical EngineeringNanyang Technological University62 Nanyang DriveSingapore637459Singapore
| | - Xuerui Gong
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
| | - Chaoyang Gong
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
| | - Guang Yang
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
| | - Sing Yian Chew
- School of Chemical and Biomedical EngineeringNanyang Technological University62 Nanyang DriveSingapore637459Singapore
- Lee Kong Chian School of Medicine11 Mandalay RoadSingapore308232Singapore
| | - Changjin Huang
- School of Mechanical and Aerospace EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
| | - Yu‐Cheng Chen
- School of Electrical and Electronic EngineeringNanyang Technological University50 Nanyang Ave.Singapore639798Singapore
- School of Chemical and Biomedical EngineeringNanyang Technological University62 Nanyang DriveSingapore637459Singapore
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20
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Yang X, Zhang Z, Su M, Song Y. Research Progress on Nano Photonics Technology-based SARS-CoV-2 Detection※. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21100469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Kim KH, Dannenberg PH, Yan H, Cho S, Yun SH. Compact Quantum-Dot Microbeads with Sub-Nanometer Emission Linewidth. ADVANCED FUNCTIONAL MATERIALS 2021; 31:2103413. [PMID: 35418816 PMCID: PMC9000203 DOI: 10.1002/adfm.202103413] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Indexed: 05/29/2023]
Abstract
Fluorescent microbeads are widely used for applications in life sciences and medical diagnosis. The spectral contrast and sharpness of photoluminescence are critical in the utilities of microbeads for imaging and multiplexing. Here, we demonstrate microbeads capable of generating single-peak laser emission with a sub-nanometer linewidth. The microbeads are made of quantum dots that are tightly packed and crosslinked via ligand exchange for high optical gain and refractive index as well as material stability. Bright single-mode lasing with no photobleaching is achieved with particle diameters as small as 1.5 μm in the air. Sub-nm lasing emission is maintained even inside high-index surroundings, such as organic solvents and biological tissues. Feasibility of intracellular tagging and multi-color imaging in vivo is demonstrated.
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Affiliation(s)
- Kwon-Hyeon Kim
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, MA 02139, USA
| | - Paul H Dannenberg
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, MA 02139, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology
| | - Hao Yan
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, MA 02139, USA
| | - Sangyeon Cho
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, MA 02139, USA
| | - Seok-Hyun Yun
- Wellman Center for Photomedicine and Harvard Medical School, Massachusetts General Hospital, 65 Landsdowne Street, Cambridge, MA 02139, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology
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22
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Dannenberg PH, Wang J, Zhuo Y, Cho S, Kim KH, Yun SH. Droplet microfluidic generation of a million optical microparticle barcodes. OPTICS EXPRESS 2021; 29:38109-38118. [PMID: 34808870 PMCID: PMC8687102 DOI: 10.1364/oe.439143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/05/2021] [Accepted: 09/06/2021] [Indexed: 05/19/2023]
Abstract
Micron-scale barcode particles enable labelling of small objects. Here, we demonstrate high-throughput barcode fabrication inside a microfluidic chip that can embed multiple, dye-doped high quality-factor whispering gallery mode cavities inside aqueous droplets at kilohertz rates. These droplets are then cured to form polyacrylamide hydrogel beads as small as 30 μm in diameter. Optical resonance spectra of the embedded cavities provide the hydrogels with unique barcodes with their diversity combinatorically scaled with the number of embedded cavities. Using 3 cavities per hydrogel, we obtain approximately one million uniquely identifiable, optically readable barcode microparticles.
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Affiliation(s)
- Paul H. Dannenberg
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- Co-first authors with equal contribution
| | - Jie Wang
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing 210031, China
- Co-first authors with equal contribution
| | - Yue Zhuo
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Sangyeon Cho
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Kwon-Hyeon Kim
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, Massachusetts 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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23
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Fan Y, Zhang C, Gao Z, Zhou W, Hou Y, Zhou Z, Yao J, Zhao YS. Randomly Induced Phase Transformation in Silk Protein-Based Microlaser Arrays for Anticounterfeiting. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2102586. [PMID: 34477249 DOI: 10.1002/adma.202102586] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Anticounterfeiting labels based on physical unclonable functions (PUFs) exhibit high security with unreplicable code outputs, making them an ideal platform to realize unbreakable anticounterfeiting. Although various schemes are proposed for PUF labels, the utilization of natural randomness suffers from unpredictable signal extraction sites, which poses a challenge to efficient and convenient authentication for practical anticounterfeiting applications. Here, a covert optical PUF-based cryptographic protocol from silk protein-based microlaser (SML) arrays that possess hidden randomness of lasers for unclonable lasing signals as well as a defined location for efficient identification is proposed. The initial SMLs are patterned by casting laser dye-doped regenerated silk fibroin solution, resulting in a uniform microlaser array with regulated positions. With the SML array as substrate, random methanol microdroplets are stochastically sprayed on the SML array, which eventually induces uneven lasing signal changes of the patterned microlasers. The treated SML array possesses the deterministic readout sites of laser signals and unrepeatable signal distribution characteristics, which can guarantee efficient authentication and high security when serving as an anticounterfeiting label.
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Affiliation(s)
- Yuqing Fan
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chunhuan Zhang
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhenhua Gao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Wu Zhou
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yue Hou
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhonghao Zhou
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiannian Yao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yong Sheng Zhao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China
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24
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Yuan Z, Cheng X, Li T, Zhou Y, Zhang Y, Gong X, Chang GE, Birowosuto MD, Dang C, Chen YC. Light-Harvesting in Biophotonic Optofluidic Microcavities via Whispering-Gallery Modes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:36909-36918. [PMID: 34310119 DOI: 10.1021/acsami.1c09845] [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
Phycobiliproteins are a class of light-harvesting fluorescent proteins existing in cyanobacteria and microalgae, which harvest light and convert it into electricity. Owing to recent demands on environmental-friendly and renewable apparatuses, phycobiliproteins have attracted substantial interest in bioenergy and sustainable devices. However, converting energy from biological materials remains challenging to date. Herein, we report a novel scheme to enhance biological light-harvesting through light-matter interactions at the biointerface of whispering-gallery modes (WGMs), where phycobiliproteins were employed as the active gain material. By exploiting microdroplets as a carrier for light-harvesting biomaterials, strong local electric field enhancement and photon confinement at the cavity interface resulted in significantly enhanced bio-photoelectricity. A threshold-like behavior was discovered in photocurrent enhancement and the WGM modulated fluorescence. Systematic studies of biologically produced photoelectricity and optical mode resonance were carried out to illustrate the impact of the cavity quality factor, structural geometry, and refractive indices. Finally, a biomimetic system was investigated by exploiting cascade energy transfer in phycobiliprotein assembly composed of three light-harvesting proteins. The key findings not only highlight the critical role of optical cavity in light-harvesting but also offer deep insights into light energy coupling in biomaterials.
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Affiliation(s)
- Zhiyi Yuan
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xin Cheng
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Tsungyu Li
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yunke Zhou
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yifan Zhang
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Xuerui Gong
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Guo-En Chang
- Department of Mechanical Engineering, and Advanced Institute of Manufacturing with High-Tech Innovations, National Chung Cheng University, Chiayi 62102, Taiwan
| | - Muhammad D Birowosuto
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Cuong Dang
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
| | - Yu-Cheng Chen
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
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25
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Pirone D, Mugnano M, Memmolo P, Merola F, Lama GC, Castaldo R, Miccio L, Bianco V, Grilli S, Ferraro P. Three-Dimensional Quantitative Intracellular Visualization of Graphene Oxide Nanoparticles by Tomographic Flow Cytometry. NANO LETTERS 2021; 21:5958-5966. [PMID: 34232045 PMCID: PMC9297328 DOI: 10.1021/acs.nanolett.1c00868] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Interaction of nanoparticles (NPs) with cells is of fundamental importance in biology and biomedical sciences. NPs can be taken up by cells, thus interacting with their intracellular elements, modifying the life cycle pathways, and possibly inducing death. Therefore, there is a great interest in understanding and visualizing the process of cellular uptake itself or even secondary effects, for example, toxicity. Nowadays, no method is reported yet in which 3D imaging of NPs distribution can be achieved for suspended cells in flow-cytometry. Here we show that, by means of label-free tomographic flow-cytometry, it is possible to obtain full 3D quantitative spatial distribution of nanographene oxide (nGO) inside each single flowing cell. This can allow the setting of a class of biomarkers that characterize the 3D spatial intracellular deployment of nGO or other NPs clusters, thus opening the route for quantitative descriptions to discover new insights in the realm of NP-cell interactions.
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Affiliation(s)
- Daniele Pirone
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
- Department
of Electrical Engineering and Information Technologies (DIETI), University of Naples “Federico II”, via Claudio 21, 80125 Napoli, Italy
| | - Martina Mugnano
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Pasquale Memmolo
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Francesco Merola
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Giuseppe Cesare Lama
- Institute
of Polymers, Composites and Biomaterials, CNR-IPCB, Via Campi
Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Rachele Castaldo
- Institute
of Polymers, Composites and Biomaterials, CNR-IPCB, Via Campi
Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Lisa Miccio
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Vittorio Bianco
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Simonetta Grilli
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Pietro Ferraro
- Institute
of Applied Sciences and Intelligent Systems “E. Caianiello”, CNR-ISASI, Via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
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26
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Pan T, Lu D, Xin H, Li B. Biophotonic probes for bio-detection and imaging. LIGHT, SCIENCE & APPLICATIONS 2021; 10:124. [PMID: 34108445 PMCID: PMC8190087 DOI: 10.1038/s41377-021-00561-2] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/10/2021] [Accepted: 05/21/2021] [Indexed: 05/08/2023]
Abstract
The rapid development of biophotonics and biomedical sciences makes a high demand on photonic structures to be interfaced with biological systems that are capable of manipulating light at small scales for sensitive detection of biological signals and precise imaging of cellular structures. However, conventional photonic structures based on artificial materials (either inorganic or toxic organic) inevitably show incompatibility and invasiveness when interfacing with biological systems. The design of biophotonic probes from the abundant natural materials, particularly biological entities such as virus, cells and tissues, with the capability of multifunctional light manipulation at target sites greatly increases the biocompatibility and minimizes the invasiveness to biological microenvironment. In this review, advances in biophotonic probes for bio-detection and imaging are reviewed. We emphatically and systematically describe biological entities-based photonic probes that offer appropriate optical properties, biocompatibility, and biodegradability with different optical functions from light generation, to light transportation and light modulation. Three representative biophotonic probes, i.e., biological lasers, cell-based biophotonic waveguides and bio-microlenses, are reviewed with applications for bio-detection and imaging. Finally, perspectives on future opportunities and potential improvements of biophotonic probes are also provided.
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Affiliation(s)
- Ting Pan
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Dengyun Lu
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China
| | - Hongbao Xin
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China.
| | - Baojun Li
- Institute of Nanophotonics, Jinan University, Guangzhou, 511443, China.
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27
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Toropov N, Vollmer F. Whispering-gallery microlasers for cell tagging and barcoding: the prospects for in vivo biosensing. LIGHT, SCIENCE & APPLICATIONS 2021; 10:77. [PMID: 33854030 PMCID: PMC8046988 DOI: 10.1038/s41377-021-00517-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Researchers in the field of whispering-gallery-mode (WGM) microresonators have proposed biointegrated low-threshold WGM lasers, to enable large-scale parallel single-cell tracking and barcoding. Although the reported devices have so far been primarily investigated in model applications, most recent results represent important steps towards the development of in vivo tags and sensors that utilize the unique and narrow spectral features of miniature WGM lasers.
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Affiliation(s)
- Nikita Toropov
- Department of Physics and Astronomy, Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK.
| | - Frank Vollmer
- Department of Physics and Astronomy, Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK.
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28
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Toropov N, Cabello G, Serrano MP, Gutha RR, Rafti M, Vollmer F. Review of biosensing with whispering-gallery mode lasers. LIGHT, SCIENCE & APPLICATIONS 2021; 10:42. [PMID: 33637696 PMCID: PMC7910454 DOI: 10.1038/s41377-021-00471-3] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 01/04/2021] [Accepted: 01/09/2021] [Indexed: 05/04/2023]
Abstract
Lasers are the pillars of modern optics and sensing. Microlasers based on whispering-gallery modes (WGMs) are miniature in size and have excellent lasing characteristics suitable for biosensing. WGM lasers have been used for label-free detection of single virus particles, detection of molecular electrostatic changes at biointerfaces, and barcode-type live-cell tagging and tracking. The most recent advances in biosensing with WGM microlasers are described in this review. We cover the basic concepts of WGM resonators, the integration of gain media into various active WGM sensors and devices, and the cutting-edge advances in photonic devices for micro- and nanoprobing of biological samples that can be integrated with WGM lasers.
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Affiliation(s)
- Nikita Toropov
- Department of Physics and Astronomy, Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK.
| | - Gema Cabello
- Department of Physics and Astronomy, Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK
| | - Mariana P Serrano
- Departamento de Química, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, Universidad Nacional de La Plata, La Plata, 1900, Argentina
| | - Rithvik R Gutha
- Department of Physics and Astronomy, Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK
| | - Matías Rafti
- Departamento de Química, Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, Universidad Nacional de La Plata, La Plata, 1900, Argentina
| | - Frank Vollmer
- Department of Physics and Astronomy, Living Systems Institute, University of Exeter, Exeter, EX4 4QD, UK.
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29
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Liao J, Yang L. Optical whispering-gallery mode barcodes for high-precision and wide-range temperature measurements. LIGHT, SCIENCE & APPLICATIONS 2021; 10:32. [PMID: 33547272 PMCID: PMC7862871 DOI: 10.1038/s41377-021-00472-2] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/20/2020] [Accepted: 01/12/2021] [Indexed: 05/11/2023]
Abstract
Temperature is one of the most fundamental physical properties to characterize various physical, chemical, and biological processes. Even a slight change in temperature could have an impact on the status or dynamics of a system. Thus, there is a great need for high-precision and large-dynamic-range temperature measurements. Conventional temperature sensors encounter difficulties in high-precision thermal sensing on the submicron scale. Recently, optical whispering-gallery mode (WGM) sensors have shown promise for many sensing applications, such as thermal sensing, magnetic detection, and biosensing. However, despite their superior sensitivity, the conventional sensing method for WGM resonators relies on tracking the changes in a single mode, which limits the dynamic range constrained by the laser source that has to be fine-tuned in a timely manner to follow the selected mode during the measurement. Moreover, we cannot derive the actual temperature from the spectrum directly but rather derive a relative temperature change. Here, we demonstrate an optical WGM barcode technique involving simultaneous monitoring of the patterns of multiple modes that can provide a direct temperature readout from the spectrum. The measurement relies on the patterns of multiple modes in the WGM spectrum instead of the changes of a particular mode. It can provide us with more information than the single-mode spectrum, such as the precise measurement of actual temperatures. Leveraging the high sensitivity of WGMs and eliminating the need to monitor particular modes, this work lays the foundation for developing a high-performance temperature sensor with not only superior sensitivity but also a broad dynamic range.
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Affiliation(s)
- Jie Liao
- Department of Electrical & Systems Engineering, Washington University in St. Louis, MO 63130, St. Louis, USA
| | - Lan Yang
- Department of Electrical & Systems Engineering, Washington University in St. Louis, MO 63130, St. Louis, USA.
- Department of Physics, Washington University in St. Louis, MO 63130, St. Louis, USA.
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30
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Yuan Z, Tan X, Gong X, Gong C, Cheng X, Feng S, Fan X, Chen YC. Bioresponsive microlasers with tunable lasing wavelength. NANOSCALE 2021; 13:1608-1615. [PMID: 33439198 DOI: 10.1039/d0nr07921a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Lasing particles are emerging tools for amplifying light-matter interactions at the biointerface by exploiting its strong intensity and miniaturized size. Recent advances in implementing laser particles into living cells and tissues have opened a new frontier in biological imaging, monitoring, and tracking. Despite remarkable progress in micro- and nanolasers, lasing particles with surface functionality remain challenging due to the low mode-volume while maintaining a high Q-factor. Herein, we report the novel concept of bioresponsive microlasers by exploiting interfacial energy transfer based on whispering-gallery-mode (WGM) microdroplet cavities. Lasing wavelengths were manipulated by energy transfer-induced changes of a gain spectrum resulting from the binding molecular concentrations at the cavity surface. Both protein-based and enzymatic-based interactions were demonstrated, shedding light on the development of functional microlasers. Finally, tunable lasing wavelengths over a broad spectral range were achieved by selecting different donor/acceptor pairs. This study not only opens new avenues for biodetection, but also provides deep insights into how molecules modulate laser light at the biointerface, laying the foundation for the development of smart bio-photonic devices at the molecular level.
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Affiliation(s)
- Zhiyi Yuan
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.
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31
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Tang SJ, Dannenberg PH, Liapis AC, Martino N, Zhuo Y, Xiao YF, Yun SH. Laser particles with omnidirectional emission for cell tracking. LIGHT, SCIENCE & APPLICATIONS 2021; 10:23. [PMID: 33495436 PMCID: PMC7835369 DOI: 10.1038/s41377-021-00466-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 01/05/2021] [Accepted: 01/06/2021] [Indexed: 05/10/2023]
Abstract
The ability to track individual cells in space over time is crucial to analyzing heterogeneous cell populations. Recently, microlaser particles have emerged as unique optical probes for massively multiplexed single-cell tagging. However, the microlaser far-field emission is inherently direction-dependent, which causes strong intensity fluctuations when the orientation of the particle varies randomly inside cells. Here, we demonstrate a general solution based on the incorporation of nanoscale light scatterers into microlasers. Two schemes are developed by introducing either boundary defects or a scattering layer into microdisk lasers. The resulting laser output is omnidirectional, with the minimum-to-maximum ratio of the angle-dependent intensity improving from 0.007 (-24 dB) to > 0.23 (-6 dB). After transfer into live cells in vitro, the omnidirectional laser particles within moving cells could be tracked continuously with high signal-to-noise ratios for 2 h, while conventional microlasers exhibited frequent signal loss causing tracking failure.
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Affiliation(s)
- Shui-Jing Tang
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871, Beijing, China
| | - Paul H Dannenberg
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Andreas C Liapis
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
| | - Nicola Martino
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
| | - Yue Zhuo
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA
| | - Yun-Feng Xiao
- State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, 100871, Beijing, China.
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, USA.
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, USA.
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32
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Miccio L, Memmolo P, Merola F, Mugnano M, Ferraro P. Optobiology: live cells in optics and photonics. JPHYS PHOTONICS 2020. [DOI: 10.1088/2515-7647/abac19] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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33
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Mai HH, Nguyen TT, Giang KM, Do XT, Nguyen TT, Hoang HC, Ta VD. Chicken albumen-based whispering gallery mode microlasers. SOFT MATTER 2020; 16:9069-9073. [PMID: 32909582 DOI: 10.1039/d0sm01091j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Microlasers based on biomaterials have attracted enormous interest because of their promising potential for future applications in medical treatments, bio-tracking, and biosensing. In this work, we demonstrate chicken albumen as a novel and excellent low-cost biomaterial for a laser cavity. By using a simple but effective emulsion process, rhodamine B-doped chicken albumen microspheres with various diameters ranging from 20 μm to 100 μm can be fabricated. Under optical pulse excitation, these microspheres emit lasing emission. The lasing mechanism is investigated and ascribed to the whispering gallery mode (WGM). A threshold of 23.2 μJ mm-2 and a high Q-factor of approximately 2400 are obtained from an 82 μm-diameter microsphere. Size-dependent lasing characteristics are also examined, and the result shows good agreement with the WGM theory. Interestingly, these microsphere biolasers can operate in aqueous and biological environments such as water and human blood serum, which makes them a promising candidate for laser-based biosensing and biological applications.
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Affiliation(s)
- Hanh Hong Mai
- Department of Quantum Optics, Faculty of Physics, University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi 100000, Vietnam. and Key Laboratory for Multi-scale Simulations of Complex Systems, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi 100000, Vietnam
| | - Tam Trong Nguyen
- Department of Quantum Optics, Faculty of Physics, University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi 100000, Vietnam.
| | - Khoi Manh Giang
- Center of Laser Technology, National Center for Technological Progress, C7 Khuat Duy Tien, Hanoi 100000, Vietnam
| | - Xuan Tien Do
- Center of Laser Technology, National Center for Technological Progress, C7 Khuat Duy Tien, Hanoi 100000, Vietnam
| | - Toan T Nguyen
- Department of Quantum Optics, Faculty of Physics, University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi 100000, Vietnam. and Key Laboratory for Multi-scale Simulations of Complex Systems, Vietnam National University, Hanoi, 334 Nguyen Trai, Hanoi 100000, Vietnam
| | - Hieu Chi Hoang
- Department of Quantum Optics, Faculty of Physics, University of Science, Vietnam National University, 334 Nguyen Trai, Hanoi 100000, Vietnam.
| | - Van Duong Ta
- Department of Optical Devices, Le Quy Don Technical University, 236 Hoang Quoc Viet, Hanoi 100000, Vietnam.
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34
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Gao Z, Wang K, Yan Y, Yao J, Zhao YS. Smart responsive organic microlasers with multiple emission states for high-security optical encryption. Natl Sci Rev 2020; 8:nwaa162. [PMID: 34691572 PMCID: PMC8288339 DOI: 10.1093/nsr/nwaa162] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/20/2020] [Accepted: 07/08/2020] [Indexed: 11/13/2022] Open
Abstract
Modern high-security cryptography and optical communication call for covert bit sequences with high coding capacity and efficient authentication. Stimuli-responsive lasing emissions with easily distinguishable readout are promising in the coding field as a novel cryptographic primitive, while the application is frequently restricted by the limited number of emission states. Here, we report a strategy of achieving multiple competitive lasing signals in responsive organic microspheres where a donor–acceptor pair was introduced. The competitive lasing from the donor and acceptor was reversibly switched by modulating the competition between the radiative rate of the donor and the rate of energy transfer, and the generated multiple lasing signals enabled a quaternary coding for recognizable cryptographic implementation. Data encryption and extraction were demonstrated using a 4 × 4 microlaser array, showing vast prospects in avoiding the disclosure of security information. The results offer a comprehensive understanding of excited-state dynamics in organic composite materials, which may play a major role in high-security optical recording and information encryption.
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Affiliation(s)
- Zhenhua Gao
- Key Laboratory of photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Kang Wang
- Key Laboratory of photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yongli Yan
- Key Laboratory of photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jiannian Yao
- Key Laboratory of photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Yong Sheng Zhao
- Key Laboratory of photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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35
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Li X, Zhang W, Wang WY, Wu X, Li Y, Tan X, Matera DL, Baker BM, Paulus YM, Fan X, Wang X. Optical coherence tomography and fluorescence microscopy dual-modality imaging for in vivo single-cell tracking with nanowire lasers. BIOMEDICAL OPTICS EXPRESS 2020; 11:3659-3672. [PMID: 33014558 PMCID: PMC7510899 DOI: 10.1364/boe.395369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/02/2020] [Accepted: 06/03/2020] [Indexed: 05/24/2023]
Abstract
Emerging cell-based therapies such as stem cell therapy and immunotherapy have attracted broad attention in both biological research and clinical practice. However, a long-standing technical gap of cell-based therapies is the difficulty of directly assessing treatment efficacy via tracking therapeutically administered cells. Therefore, imaging techniques to follow the in vivo distribution and migration of cells are greatly needed. Optical coherence tomography (OCT) is a clinically available imaging technology with ultrahigh-resolution and excellent imaging depth. It also shows great potential for in vivo cellular imaging. However, due to the homogeneity of current OCT cell labeling contrast agents (such as gold and polymer nanoparticles), only the distribution of entire cell populations can be observed. Precise tracking of the trajectory of individual single cells is not possible with such conventional contrast agents. Microlasers may provide a route to track unique cell identifiers given their small size, high emission intensities, rich emission spectra, and narrow linewidths. Here, we demonstrate that nanowire lasers internalized by cells provide both OCT and fluorescence signal. In addition, cells can be individually identified by the unique lasing emission spectra of the nanowires that they carry. Furthermore, single cell migration trajectories can be monitored both in vitro and in vivo with OCT and fluorescence microscopy dual-modality imaging system. Our study demonstrates the feasibility of nanowire lasers combined with the dual-modality imaging system for in vivo single cell tracking with a high spatial resolution and identity verification, an approach with great utility for stem cell and immunomodulatory therapies.
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Affiliation(s)
- Xuzhou Li
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
- Department of Mechanical Engineering, University of Michigan, 2350 Hayward St., Ann Arbor, MI 48109, USA
- Xuzhou Li and Wei Zhang contributed equally to this work
| | - Wei Zhang
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
- Xuzhou Li and Wei Zhang contributed equally to this work
| | - William Y Wang
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Xiaoqin Wu
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Yanxiu Li
- Department of Ophthalmology and Visual Sciences, University of Michigan, 1000 Wall St, Ann Arbor, MI 48105, USA
| | - Xiaotian Tan
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Daniel L Matera
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Brendon M Baker
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Yannis M Paulus
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
- Department of Ophthalmology and Visual Sciences, University of Michigan, 1000 Wall St, Ann Arbor, MI 48105, USA
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Xueding Wang
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
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36
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Gao Z, Wang JH, Song P, Kang B, Xu JJ, Chen HY. Spaser Nanoparticles for Ultranarrow Bandwidth STED Super-Resolution Imaging. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907233. [PMID: 31957100 DOI: 10.1002/adma.201907233] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 12/02/2019] [Indexed: 06/10/2023]
Abstract
Super-resolution microscopy, as a powerful tool of seeing abundant spatial details, typically can only distinguish a few distinct targets at a time due to the spectral crosstalk between fluorophores. Spaser (i.e., surface plasmon laser) nanoprobes, which confine lasing emission into nanoscale, offer an opportunity to eliminate such obstacle. Here, realized is narrow band stimulated emission depletion (STED) nanoscopy on spaser nanoparticles by collecting the coherent spasing signals. Demonstrated are the physics concept and feasibility of erasing spaser emission by using a depletion beam to suppress the population inversion, which lays the foundation of spaser-based STED super-resolution. Thanks to the small size (47 nm) and narrow spectral linewidth (3.8 nm) of the spaser nanoparticles, a 74 nm spatial resolution in STED imaging within an acquisition bandwidth of 10 nm is finally obtained. These spaser nanoparticles, if multiplexing with different wavelengths, in principle, allow for spectral-multiplexed imaging, sensing, cytometry, and light operation of a large number of targets all at once.
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Affiliation(s)
- Zhaoshuai Gao
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China
| | - Jian-Hua Wang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China
| | - Pei Song
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China
| | - Bin Kang
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China
| | - Jing-Juan Xu
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China
| | - Hong-Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Science and Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Road, Nanjing, 210023, China
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37
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Liu Y, Teitelboim A, Fernandez-Bravo A, Yao K, Altoe MVP, Aloni S, Zhang C, Cohen BE, Schuck PJ, Chan EM. Controlled Assembly of Upconverting Nanoparticles for Low-Threshold Microlasers and Their Imaging in Scattering Media. ACS NANO 2020; 14:1508-1519. [PMID: 32053350 DOI: 10.1021/acsnano.9b06102] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Micron-sized lasers fabricated from upconverting nanoparticles (UCNP) coupled to whispering gallery mode (WGM) microresonators can exhibit continuous-wave anti-Stokes lasing useful for tracking cells, environmental sensing, and coherent stimulation of biological activity. The integration of these microlasers into organisms and microelectronics requires even smaller diameters, however, which raises threshold pump powers beyond practical limits for biological applications. To meet the need for low lasing thresholds and high fidelity fabrication methods, we use correlative optical and electron microscopy to uncover the nanoparticle assembly process and structural factors that determine efficient upconverted lasing. We show that 5 μm microspheres with controlled submonolayer UCNP coatings exhibit, on average, 25-fold lower laser thresholds (1.7 ± 0.7 kW/cm2) compared to the mean values of the lowest threshold UCNP lasers, and variability is reduced 30-fold. WGMs are observed in the upconversion spectra for TiO2-coated microspheres as small as 3 μm, a size at which optical losses had previously prevented such observations. Finally, we demonstrate that the WGM signatures of these upconverting microlasers can be imaged and distinguished through tissue-mimicking phantoms. These advances will enable the fabrication of more efficient upconverting lasers for imaging, sensing, and actuation in optically complex environments.
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Affiliation(s)
- Yawei Liu
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , China
| | - Ayelet Teitelboim
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Angel Fernandez-Bravo
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Kaiyuan Yao
- Department of Mechanical Engineering , Columbia University , New York , New York 10027 , United States
- Department of Mechanical Engineering , University of California , Berkeley , California 94720 , United States
| | - M Virginia P Altoe
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Shaul Aloni
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Chunhua Zhang
- School of Chemistry and Chemical Engineering , Harbin Institute of Technology , Harbin 150001 , China
| | - Bruce E Cohen
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - P James Schuck
- Department of Mechanical Engineering , Columbia University , New York , New York 10027 , United States
| | - Emory M Chan
- The Molecular Foundry, Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
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38
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Richter D, Marinčič M, Humar M. Optical-resonance-assisted generation of super monodisperse microdroplets and microbeads with nanometer precision. LAB ON A CHIP 2020; 20:734-740. [PMID: 31845692 DOI: 10.1039/c9lc01034c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Droplets with predefined sizes have been controllably produced at the tip of a micro-capillary immersed in an external fluid while tracking the high Q-factor whispering gallery modes (WGM). The modes were fitted to a model to give precise real-time size measurement, which was used as a feedback to control the pressure in the capillary and the release of the droplet from the capillary when it reached the target size. In this way a dispersion of highly monodisperse droplets anywhere in the size range from 5 μm to 50 μm were produced. To fabricate solid beads, the droplets were made from a liquid photopolymer and were later polymerized with UV light. The polymerized beads showed long term stability. The diameter of the generated oil droplets and polymerized microbeads could be reproduced with a standard deviation of 1.1 nm and 20 nm, respectively. Overall, the demonstrated method improves the size precision by three and two orders of magnitude for microdroplets and microbeads, respectively, compared to standard production methods such as reported in microfluidics. Encoding of short words and numbers has been demonstrated by producing three beads with predefined sizes. The stored information has been read from the emitted spectrum.
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Affiliation(s)
- Dmitry Richter
- Center for Systems Biology and Wellman Center for Photomedicine, Harvard Medical School, Massachusetts General Hospital, Boston, MA 02114, USA and Department of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia.
| | - MatevŽ Marinčič
- Department of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia. and Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000 Ljubljana, Slovenia
| | - MatjaŽ Humar
- Department of Condensed Matter Physics, J. Stefan Institute, Jamova 39, SI-1000 Ljubljana, Slovenia. and Faculty of Mathematics and Physics, University of Ljubljana, Jadranska 19, SI-1000 Ljubljana, Slovenia
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39
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Lee SN, Choi JH, Cho HY, Choi JW. Metallic Nanoparticle-Based Optical Cell Chip for Nondestructive Monitoring of Intra/Extracellular Signals. Pharmaceutics 2020; 12:pharmaceutics12010050. [PMID: 31936079 PMCID: PMC7022866 DOI: 10.3390/pharmaceutics12010050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 12/31/2019] [Accepted: 01/06/2020] [Indexed: 12/23/2022] Open
Abstract
The biosensing platform is noteworthy for high sensitivity and precise detection of target analytes, which are related to the status of cells or specific diseases. The modification of the transducers with metallic nanoparticles (MNPs) has attracted attention owing to excellent features such as improved sensitivity and selectivity. Moreover, the incorporation of MNPs into biosensing systems may increase the speed and the capability of the biosensors. In this review, we introduce the current progress of the developed cell-based biosensors, cell chip, based on the unique physiochemical features of MNPs. Mainly, we focus on optical intra/extracellular biosensing methods, including fluorescence, localized surface plasmon resonance (LSPR), and surface-enhanced Raman spectroscopy (SERS) based on the coupling of MNPs. We believe that the topics discussed here are useful and able to provide a guideline in the development of new MNP-based cell chip platforms for pharmaceutical applications such as drug screening and toxicological tests in the near future.
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Affiliation(s)
- Sang-Nam Lee
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-Gu, Seoul 04107, Korea; (S.-N.L.); (J.-H.C.)
- Uniance Gene Inc., 1107 Teilhard Hall, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Korea
| | - Jin-Ha Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-Gu, Seoul 04107, Korea; (S.-N.L.); (J.-H.C.)
| | - Hyeon-Yeol Cho
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-Gu, Seoul 04107, Korea; (S.-N.L.); (J.-H.C.)
- Correspondence: (H.-Y.C.); (J.-W.C.); Tel.: +82-2-705-8480 (J.-W.C.)
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-Gu, Seoul 04107, Korea; (S.-N.L.); (J.-H.C.)
- Correspondence: (H.-Y.C.); (J.-W.C.); Tel.: +82-2-705-8480 (J.-W.C.)
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40
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Abstract
This review summarizes recent advances in micro/nanoscale photonic barcodes based on organic materials from the aspects of diverse optical encoding techniques.
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Affiliation(s)
- Yue Hou
- Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Zhenhua Gao
- School of Materials Science & Engineering
- Qilu University of Technology (Shandong Academy of Sciences)
- Jinan 250353
- China
| | - Yong Sheng Zhao
- Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yongli Yan
- Key Laboratory of Photochemistry
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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41
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Xu FF, Gong ZL, Zhong YW, Yao J, Zhao YS. Wavelength-Tunable Single-Mode Microlasers Based on Photoresponsive Pitch Modulation of Liquid Crystals for Information Encryption. RESEARCH (WASHINGTON, D.C.) 2020; 2020:6539431. [PMID: 33623907 PMCID: PMC7877376 DOI: 10.34133/2020/6539431] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 11/03/2020] [Indexed: 01/23/2023]
Abstract
Information encryption and decryption have attracted particular attention; however, the applications are frequently restricted by limited coding capacity due to the indistinguishable broad photoluminescence band of conventional stimuli-responsive fluorescent materials. Here, we present a concept of confidential information encryption with photoresponsive liquid crystal (LC) lasing materials, which were used to fabricate ordered microlaser arrays through a microtemplate-assisted inkjet printing method. LC microlasers exhibit narrow-bandwidth single-mode emissions, and the wavelength of LC microlasers was reversibly modulated based on the optical isomerization of the chiral dopant in LCs. On this basis, we demonstrate phototunable information authentication on LC microlaser arrays using the wavelength of LC microlasers as primary codes. These results provide enlightenment for the implementation of microlaser-based cryptographic primitives for information encryption and anticounterfeiting applications.
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Affiliation(s)
- Fa-Feng Xu
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhong-Liang Gong
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yu-Wu Zhong
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiannian Yao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yong Sheng Zhao
- Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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42
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Martino N, Kwok SJ, Liapis AC, Forward S, Jang H, Kim HM, Wu SJ, Wu J, Dannenberg PH, Jang SJ, Lee YH, Yun SH. Wavelength-encoded laser particles for massively multiplexed cell tagging. NATURE PHOTONICS 2019; 13:720-727. [PMID: 32231707 PMCID: PMC7104740 DOI: 10.1038/s41566-019-0489-0] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2018] [Accepted: 06/06/2019] [Indexed: 05/19/2023]
Abstract
Large-scale single-cell analyses have become increasingly important given the role of cellular heterogeneity in complex biological systems. However, no current techniques enable optical imaging of uniquely-tagged individual cells. Fluorescence-based approaches can only distinguish a small number of distinct cells or cell groups at a time because of spectral crosstalk between conventional fluorophores. Here we investigate large-scale cell tracking using intracellular laser particles as imaging probes that emit coherent laser light with a characteristic wavelength. Made of silica-coated semiconductor microcavities, these laser particles have single-mode emission over a broad range from 1170 to 1580 nm with sub-nm linewidths, enabling massive spectral multiplexing. We explore the stability and biocompatibility of these probes in vitro and their utility for wavelength-multiplexed cell tagging and imaging. We demonstrate real-time tracking of thousands of individual cells in a 3D tumour model over several days showing different behavioural phenotypes.
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Affiliation(s)
- Nicola Martino
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
| | - Sheldon J.J. Kwok
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Andreas C. Liapis
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
| | - Sarah Forward
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
| | - Hoon Jang
- Department of Physics, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Hwi-Min Kim
- Department of Physics, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Sarah J. Wu
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Jiamin Wu
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
- Department of Automation, Tsinghua University, Beijing 100084, China
| | - Paul H. Dannenberg
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
| | - Sun-Joo Jang
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
| | - Yong-Hee Lee
- Department of Physics, Korea Advanced Institute of Science and Technology, 291 Daehak-ro, Yuseong-gu, Daejeon 34141, South Korea
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114, USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA
- Corresponding Author: S. H. Andy Yun, Ph.D., Professor, Harvard Medical School, Patricia and Scott Eston MGH Research Scholar, 65 Landsdowne St. UP-525, Cambridge, MA 02139, USA, Tel: 1-617-768-8704,
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43
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Kwok SJJ, Martino N, Dannenberg PH, Yun SH. Multiplexed laser particles for spatially resolved single-cell analysis. LIGHT, SCIENCE & APPLICATIONS 2019; 8:74. [PMID: 31645920 PMCID: PMC6804532 DOI: 10.1038/s41377-019-0183-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 07/11/2019] [Accepted: 07/22/2019] [Indexed: 05/11/2023]
Abstract
Biomolecular analysis at the single-cell level is increasingly important in the study of cellular heterogeneity and its consequences, particularly in organismic development and complex diseases such as cancer. Single-cell molecular analyses have led to the identification of new cell types1 and the discovery of novel targets for diagnosis and therapy2. While these analyses are performed predominantly on dissociated single cells, emerging techniques seek understanding of cellular state, cellular function and cell-cell interactions within the native tissue environment by combining optical microscopy and single-cell molecular analyses. These techniques include in situ multiplexed imaging of fluorescently labeled proteins and nucleotides, as well as low-throughput ex vivo methods in which specific cells are isolated for downstream molecular analyses. However, these methods are limited in either the number and type of molecular species they can identify or the number of cells that can be analyzed. High-throughput methods are needed for comprehensive profiling of many cells (>1000) to detect rare cell types, discriminate relevant biomarkers from intrinsic population noise, and reduce the time and cost of measurement. Many established, high-throughput single-cell analyses are not directly applicable because they require tissue dissociation, leading to a loss of spatial information3. No current methods exist that can seamlessly connect spatial mapping to single-cell techniques. In this Perspective, we review current methods for spatially resolved single-cell analysis and discuss the prospect of novel multiplexed imaging probes, called laser particles, which allow individual cells to be tagged in tissue and analyzed subsequently using high-throughput, comprehensive single-cell techniques.
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Affiliation(s)
- Sheldon J. J. Kwok
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114 USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
- LASE Innovation Inc., 650 E. Kendall Street, 2nd FL, Cambridge, MA 02142 USA
| | - Nicola Martino
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114 USA
| | - Paul H. Dannenberg
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114 USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
| | - Seok-Hyun Yun
- Harvard Medical School and Wellman Center for Photomedicine, Massachusetts General Hospital, 50 Blossom Street, Boston, MA 02114 USA
- Harvard-MIT Health Sciences and Technology, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139 USA
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44
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Abstract
The selective amplification of DNA in the polymerase chain reaction is used to exponentially increase the signal in molecular diagnostics for nucleic acids, but there are no analogous techniques for signal enhancement in clinical tests for proteins or cells. Instead, the signal from affinity-based measurements of these biomolecules depends linearly on the probe concentration. Substituting antibody-based probes tagged for fluorescent quantification with lasing detection probes would create a new platform for biomarker quantification based on optical rather than enzymatic amplification. Here, we construct a virus laser which bridges synthetic biology and laser physics, and demonstrate virus-lasing probes for biosensing. Our virus-lasing probes display an unprecedented > 10,000 times increase in signal from only a 50% increase in probe concentration, using fluorimeter-compatible optics, and can detect biomolecules at sub-100 fmol mL−1 concentrations. Many ligand-binding assays still rely on signals that scale linearly with probe concentration. The authors present lasing detection probes with a dye-labelled virus as the gain medium to optically amplify the signal, which could enable much higher signals than for fluorescent quantification.
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45
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Agbo P, Müller A, Arnedo-Sanchez L, Ercius P, Minor AM, Abergel RJ. Amplified luminescence in organo-curium nanocrystal hybrids. NANOSCALE 2019; 11:7609-7612. [PMID: 30969284 DOI: 10.1039/c9nr01360a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We present the first report of ligand-sensitized, actinide luminescence in a lanthanide nanoparticle host. Amplified luminescence of 248Cm3+ doped in a NaGdF4 lattice is achieved through optical pumping of a surface-localized metal chelator, 3,4,3-LI(1,2-HOPO), capable of sensitizing Cm3+ excited states. The data suggest the possibility of using such materials in theranostic applications, with a ligand-sensitized actinide or radio-lanthanide serving the dual roles of a nuclear decay source for radiotherapeutics, and as a luminescent center or energy transfer conduit to another emissive metal ion, for biological imaging.
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Affiliation(s)
- Peter Agbo
- Chemical Sciences Division Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
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46
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Advances in materials for cellular applications (Review). Biointerphases 2019; 14:010801. [PMID: 30803241 DOI: 10.1116/1.5083803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The goal of this review is to highlight materials that show exciting promise for either entirely new cellular-level applications or new approaches to long-standing biological challenges. The authors start with two more established materials, graphene and carbon nanotubes, and then progress to conducting polymers, followed by an overview of the microresonators, nanowires, and spasers used as intracellular lasers. These materials provide new approaches to gene and drug delivery, cellular regeneration, mechanical sensing, imaging, and the modulation and recording of cellular activity. Of specific interest is the comparison of these materials with existing technologies, the method of cellular delivery, and the all-encompassing challenge of biocompatibility. Concluding remarks examine the extension of these materials from cellular-level experiments to in vivo applications, including the method of activation: light, electricity, and ultrasound. Overall, these materials and their associated applications illustrate the most recent advances in material-cell interactions.
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47
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Gu P, Hu T, Wu H, Yan Z, Chen J, Dong W, Chen Z, Zhan P, Xia X, Wang Z. Highly tunable multiple narrow emissions of dyed dielectric-metal core-shell resonators: towards efficient fluorescent labels. NANOTECHNOLOGY 2019; 30:065302. [PMID: 30523886 DOI: 10.1088/1361-6528/aaf157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report a potential efficient fluorescent label based on the dyed dielectric-metal core-shell resonators (DMCSRs). By utilizing the near-field coupling between the dyes and the multipolar sharp cavity plasmon resonances, the dyed DMCSRs with diameter of 1.02 μm are demonstrated to be capable of supporting multiple spontaneous emission peaks with the linewidths as narrow as ∼ 10 nm in visible range, and these reshaped fluorescent emissions are insensitive to the surrounding dielectric environment. Furthermore, these multiple narrow emission peaks show a precise tunability on the spectrum by simply separating a nanometric dielectric layer between the dielectric core and the metallic shell, which may provide an attractive spectral multiplexing strategy in the fields of cell biology and medical sciences.
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Affiliation(s)
- Ping Gu
- School of Physics and National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
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48
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Chen YC, Chen Q, Tan X, Chen G, Bergin I, Aslam MN, Fan X. Chromatin laser imaging reveals abnormal nuclear changes for early cancer detection. BIOMEDICAL OPTICS EXPRESS 2019; 10:838-854. [PMID: 30800518 PMCID: PMC6377874 DOI: 10.1364/boe.10.000838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/03/2019] [Accepted: 01/05/2019] [Indexed: 05/14/2023]
Abstract
We developed and applied rapid scanning laser-emission microscopy (LEM) to detect abnormal changes in cell nuclei for early diagnosis of cancer and cancer precursors. Regulation of chromatins is essential for genetic development and normal cell functions, while abnormal nuclear changes may lead to many diseases, in particular, cancer. The capability to detect abnormal changes in "apparently normal" tissues at a stage earlier than tumor development is critical for cancer prevention. Here we report using LEM to analyze colonic tissues from mice at-risk for colon cancer (induced by a high-fat diet) by detecting pre-polyp nuclear abnormality. By imaging the lasing emissions from chromatins, we discovered that, despite the absence of observable lesions, polyps, or tumors under stereoscope, high-fat mice exhibited significantly lower lasing thresholds than low-fat mice. The low lasing threshold is, in fact, very similar to that of adenomas and is caused by abnormal cell proliferation and chromatin deregulation that can potentially lead to cancer. Our findings suggest that conventional detection methods, such as colonoscopy followed by histopathology, by itself, may be insufficient to reveal hidden or early tumors under development. We envision that this innovative work will provide new insights into LEM and support existing tools for early tumor detection in clinical diagnosis, and fundamental biological and biomedical research of chromatin changes at the biomolecular level of cancer development.
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Affiliation(s)
- Yu-Cheng Chen
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
- School of Electrical and Electronics Engineering, Nanyang Technological University, 50 Nanyang Ave, 639798, Singapore
| | - Qiushu Chen
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Xiaotain Tan
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
| | - Grace Chen
- Comprehensive Cancer Center, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ingrid Bergin
- Unit for Laboratory Animal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Muhammad Nadeem Aslam
- Department of Pathology, University of Michigan, 1301 Catherine Street, Ann Arbor, MI 48109, USA
| | - Xudong Fan
- Department of Biomedical Engineering, University of Michigan, 1101 Beal Ave., Ann Arbor, MI 48109, USA
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49
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Visser JG, Van Staden ADP, Smith C. Harnessing Macrophages for Controlled-Release Drug Delivery: Lessons From Microbes. Front Pharmacol 2019; 10:22. [PMID: 30740053 PMCID: PMC6355695 DOI: 10.3389/fphar.2019.00022] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 01/09/2019] [Indexed: 01/15/2023] Open
Abstract
With the effectiveness of therapeutic agents ever decreasing and the increased incidence of multi-drug resistant pathogens, there is a clear need for administration of more potent, potentially more toxic, drugs. Alternatively, biopharmaceuticals may hold potential but require specialized protection from premature in vivo degradation. Thus, a paralleled need for specialized drug delivery systems has arisen. Although cell-mediated drug delivery is not a completely novel concept, the few applications described to date are not yet ready for in vivo application, for various reasons such as drug-induced carrier cell death, limited control over the site and timing of drug release and/or drug degradation by the host immune system. Here, we present our hypothesis for a new drug delivery system, which aims to negate these limitations. We propose transport of nanoparticle-encapsulated drugs inside autologous macrophages polarized to M1 phenotype for high mobility and treated to induce transient phagosome maturation arrest. In addition, we propose a significant shift of existing paradigms in the study of host-microbe interactions, in order to study microbial host immune evasion and dissemination patterns for their therapeutic utilization in the context of drug delivery. We describe a system in which microbial strategies may be adopted to facilitate absolute control over drug delivery, and without sacrificing the host carrier cells. We provide a comprehensive summary of the lessons we can learn from microbes in the context of drug delivery and discuss their feasibility for in vivo therapeutic application. We then describe our proposed "synthetic microbe drug delivery system" in detail. In our opinion, this multidisciplinary approach may hold the solution to effective, controlled drug delivery.
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Affiliation(s)
- Johan Georg Visser
- Department of Physiological Sciences, Stellenbosch University, Matieland, South Africa
| | | | - Carine Smith
- Department of Physiological Sciences, Stellenbosch University, Matieland, South Africa
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50
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Abstract
Barcoded bioassays are ready to promote bioanalysis and biomedicine toward the point of care.
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Affiliation(s)
- Mingzhu Yang
- Beijing Engineering Research Center for BioNanotechnology
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for NanoScience and Technology
- Beijing
| | - Yong Liu
- Beijing Engineering Research Center for BioNanotechnology
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for NanoScience and Technology
- Beijing
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety
- CAS Center for Excellence in Nanoscience
- National Center for NanoScience and Technology
- Beijing
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