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Ushenko A, Dubolazov A, Zheng J, Litvinenko A, Gorsky M, Ushenko Y, Soltys I, Salega O, Chen Z, Wanchuliak O. 3D polarization-interference holographic histology for wavelet-based differentiation of the polycrystalline component of biological tissues with different necrotic states. Forensic applications. J Biomed Opt 2024; 29:052920. [PMID: 38495527 PMCID: PMC10943250 DOI: 10.1117/1.jbo.29.5.052920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 01/10/2024] [Accepted: 01/18/2024] [Indexed: 03/19/2024]
Abstract
Significance The interference-holographic method of phase scanning of fields of scattered laser radiation is proposed. The effectiveness of this method for the selection of variously dispersed components is demonstrated. This method made it possible to obtain polarization maps of biological tissues at a high level of depolarized background. The scale-selective analysis of such maps was used to determine necrotic changes in the optically anisotropic architectonics of biological tissues. Objective Development and experimental approbation of layered phase polarimetry of repeatedly scattered fields in diffuse layers of biological tissues. Application of scale-selective processing of the found coordinate distributions of polarization states in various phase sections of object fields. Determination of criteria (markers) for histological differential diagnosis of the causes of necrotic changes in optical anisotropy of biological tissues. Approach We used a synthesis of three instrumental and analytical methods. Polarization-interference registration of laser radiation scattered by a sample of biological tissue. Digital holographic reconstruction and layered phase scanning of distributions of complex amplitudes of the object field. Analytical determination of polarization maps of various phase cross-sections of repeatedly scattered radiation. Application of wavelet analysis of the distributions of polarization states in the phase plane of a single scattered component of an object field. Determination of criteria (markers) for differential diagnosis of necrotic changes in biological tissues with different morphological structure. Two cases are considered. The first case is the myocardium of those who died as a result of coronary heart disease and acute coronary insufficiency. The second case is lung tissue samples of deceased with bronchial asthma and fibrosis. Results A method of polarization-interference mapping of diffuse object fields of biological tissues has been developed and experimentally implemented. With the help of digital holographic reconstruction of the distributions of complex amplitudes, polarization maps in various phase sections of a diffuse object field are found. The wavelet analysis of azimuth and ellipticity distributions of polarization in the phase plane of a single scattered component of laser radiation is used. Scenarios for changing the amplitude of the wavelet coefficients for different scales of the scanning salt-like MHAT function are determined. Statistical moments of the first to fourth orders are determined for the distributions of the amplitudes of the wavelet coefficients of the azimuth maps and the ellipticity of polarization. As a result, diagnostic markers of necrotic changes in the myocardium and lung tissue were determined. The statistical criteria found are the basis for determining the accuracy of their differential diagnosis of various necrotic states of biological tissues. Conclusions Necrotic changes caused by "coronary artery disease-acute coronary insufficiency" and "asthma-pulmonary fibrosis" were demonstrated by the method of wavelet differentiation with polarization interference with excellent accuracy.
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Affiliation(s)
- Alexander Ushenko
- Taizhou Institute of Zhejiang University, Taizhou, China
- Chernivtsi National University, Optics and Publishing Department, Chernivtsi, Ukraine
| | - Alexander Dubolazov
- Chernivtsi National University, Optics and Publishing Department, Chernivtsi, Ukraine
| | - Jun Zheng
- Taizhou Institute of Zhejiang University, Taizhou, China
| | - Alexandra Litvinenko
- Bucovinian State Medical University, Forensic Medicine and Medical Law Department, Chernivtsi, Ukraine
| | - Mykhaylo Gorsky
- Chernivtsi National University, Optics and Publishing Department, Chernivtsi, Ukraine
| | - Yuriy Ushenko
- Chernivtsi National University, Computer Science Department, Chernivtsi, Ukraine
| | - Iryna Soltys
- Chernivtsi National University, Optics and Publishing Department, Chernivtsi, Ukraine
| | - Olexander Salega
- Chernivtsi National University, Optics and Publishing Department, Chernivtsi, Ukraine
| | - Zhebo Chen
- Taizhou Institute of Zhejiang University, Taizhou, China
| | - Oleh Wanchuliak
- Bucovinian State Medical University, Forensic Medicine and Medical Law Department, Chernivtsi, Ukraine
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Nguyen MC, Bonnaud P, Dibsy R, Maucort G, Lyonnais S, Muriaux D, Bon P. Label-Free Single Nanoparticle Identification and Characterization in Demanding Environment, Including Infectious Emergent Virus. Small 2024; 20:e2304564. [PMID: 38009767 DOI: 10.1002/smll.202304564] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/02/2023] [Indexed: 11/29/2023]
Abstract
Unknown particle screening-including virus and nanoparticles-are keys in medicine, industry, and also in water pollutant determination. Here, RYtov MIcroscopy for Nanoparticles Identification (RYMINI) is introduced, a staining-free, non-invasive, and non-destructive optical approach that is merging holographic label-free 3D tracking with high-sensitivity quantitative phase imaging into a compact optical setup. Dedicated to the identification and then characterization of single nano-object in solution, it is compatible with highly demanding environments, such as level 3 biological laboratories, with high resilience to external source of mechanical and optical noise. Metrological characterization is performed at the level of each single particle on both absorbing and transparent particles as well as on immature and infectious HIV, SARS-CoV-2 and extracellular vesicles in solution. The capability of RYMINI to determine the nature, concentration, size, complex refractive index and mass of each single particle without knowledge or model of the particles' response is demonstrated. The system surpasses 90% accuracy for automatic identification between dielectric/metallic/biological nanoparticles and ≈80% for intraclass chemical determination of metallic and dielectric. It falls down to 50-70% for type determination inside the biological nanoparticle's class.
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Affiliation(s)
- Minh-Chau Nguyen
- UMR 7252, CNRS, XLIM, Université de Limoges, Limoges, F-87000, France
| | - Peter Bonnaud
- UMR 7252, CNRS, XLIM, Université de Limoges, Limoges, F-87000, France
| | - Rayane Dibsy
- UMR 9004 CNRS, IRIM (Institut de Recherche en Infectiologie de Montpellier), Université de Montpellier, Montpellier, F-34293, France
| | - Guillaume Maucort
- Laboratoire Photonique Numérique et Nanosciences, University of Bordeaux, Talence, F-33400, France
- LP2N UMR 5298, Institut d'Optique Graduate School, CNRS, Talence, F-33400, France
| | - Sébastien Lyonnais
- UAR 3725 CNRS, CEMIPAI, Université de Montpellier, Montpellier, F-34000, France
| | - Delphine Muriaux
- UMR 9004 CNRS, IRIM (Institut de Recherche en Infectiologie de Montpellier), Université de Montpellier, Montpellier, F-34293, France
- UAR 3725 CNRS, CEMIPAI, Université de Montpellier, Montpellier, F-34000, France
| | - Pierre Bon
- UMR 7252, CNRS, XLIM, Université de Limoges, Limoges, F-87000, France
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Nishiyama A, Tanaka S, Tuszynski JA, Tsenkova R. Holographic Brain Theory: Super-Radiance, Memory Capacity and Control Theory. Int J Mol Sci 2024; 25:2399. [PMID: 38397075 PMCID: PMC10889214 DOI: 10.3390/ijms25042399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/02/2024] [Accepted: 02/10/2024] [Indexed: 02/25/2024] Open
Abstract
We investigate Quantum Electrodynamics corresponding to the holographic brain theory introduced by Pribram to describe memory in the human brain. First, we derive a super-radiance solution in Quantum Electrodynamics with non-relativistic charged bosons (a model of molecular conformational states of water) for coherent light sources of holograms. Next, we estimate memory capacity of a brain neocortex, and adopt binary holograms to manipulate optical information. Finally, we introduce a control theory to manipulate holograms involving biological water's molecular conformational states. We show how a desired waveform in holography is achieved in a hierarchical model using numerical simulations.
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Affiliation(s)
- Akihiro Nishiyama
- Graduate School of System Informatics, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan;
- Aquaphotomics Research Department, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-0851, Japan
- Yunosato Aquaphotomics Lab, Hashimoto 648-0086, Japan
| | - Shigenori Tanaka
- Graduate School of System Informatics, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-8501, Japan;
| | - Jack A. Tuszynski
- DIMEAS, Politecnico di Torino, Corso Duca degli Abruzzi 24, I-1029 Turin, Italy
- Department of Physics, University of Alberta, 11335 Saskatchewan Dr NW, Edmonton, AB T6G 2M9, Canada
- Department of Data Science and Engineering, The Silesian University of Technology, 44-100 Gliwice, Poland
| | - Roumiana Tsenkova
- Aquaphotomics Research Department, Graduate School of Agricultural Science, Kobe University, 1-1 Rokkodai, Nada-ku, Kobe 657-0851, Japan
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Zheng F, Kiselev NS, Rybakov FN, Yang L, Shi W, Blügel S, Dunin-Borkowski RE. Hopfion rings in a cubic chiral magnet. Nature 2023; 623:718-723. [PMID: 37993571 PMCID: PMC10665190 DOI: 10.1038/s41586-023-06658-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 09/20/2023] [Indexed: 11/24/2023]
Abstract
Magnetic skyrmions and hopfions are topological solitons1-well-localized field configurations that have gained considerable attention over the past decade owing to their unique particle-like properties, which make them promising objects for spintronic applications. Skyrmions2,3 are two-dimensional solitons resembling vortex-like string structures that can penetrate an entire sample. Hopfions4-9 are three-dimensional solitons confined within a magnetic sample volume and can be considered as closed twisted skyrmion strings that take the shape of a ring in the simplest case. Despite extensive research on magnetic skyrmions, the direct observation of magnetic hopfions is challenging10 and has only been reported in a synthetic material11. Here we present direct observations of hopfions in crystals. In our experiment, we use transmission electron microscopy to observe hopfions forming coupled states with skyrmion strings in B20-type FeGe plates. We provide a protocol for nucleating such hopfion rings, which we verify using Lorentz imaging and electron holography. Our results are highly reproducible and in full agreement with micromagnetic simulations. We provide a unified skyrmion-hopfion homotopy classification and offer insight into the diversity of topological solitons in three-dimensional chiral magnets.
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Affiliation(s)
- Fengshan Zheng
- Spin-X Institute, Electron Microscopy Center, School of Physics and Optoelectronics, State Key Laboratory of Luminescent Materials and Devices, Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials, South China University of Technology, Guangzhou, China.
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich, Germany.
- Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, Germany.
| | - Nikolai S Kiselev
- Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, Germany.
- Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, Jülich, Germany.
| | - Filipp N Rybakov
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden.
| | - Luyan Yang
- Institute of Microstructure and Properties of Advanced Materials, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, China
| | - Wen Shi
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich, Germany
- Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, Germany
| | - Stefan Blügel
- Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, Germany
- Institute for Advanced Simulation, Forschungszentrum Jülich and JARA, Jülich, Germany
| | - Rafal E Dunin-Borkowski
- Ernst Ruska-Centre for Microscopy and Spectroscopy with Electrons, Forschungszentrum Jülich, Jülich, Germany
- Peter Grünberg Institute, Forschungszentrum Jülich, Jülich, Germany
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Bogue-Jimenez B, Trujillo C, Doblas A. Comprehensive tool for a phase compensation reconstruction method in digital holographic microscopy operating in non-telecentric regime. PLoS One 2023; 18:e0291103. [PMID: 37682849 PMCID: PMC10491004 DOI: 10.1371/journal.pone.0291103] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
Quantitative phase imaging (QPI) via Digital Holographic microscopy (DHM) has been widely applied in material and biological applications. The performance of DHM technologies relies heavily on computational reconstruction methods to provide accurate phase measurements. Among the optical configuration of the imaging system in DHM, imaging systems operating in a non-telecentric regime are the most common ones. Nonetheless, the spherical wavefront introduced by the non-telecentric DHM system must be compensated to provide undistorted phase measurements. The proposed reconstruction approach is based on previous work from Kemper's group. Here, we have reformulated the problem, reducing the number of required parameters needed for reconstructing phase images to the sensor pixel size and source wavelength. The developed computational algorithm can be divided into six main steps. In the first step, the selection of the +1-diffraction order in the hologram spectrum. The interference angle is obtained from the selected +1 order. Secondly, the curvature of the spherical wavefront distorting the sample's phase map is estimated by analyzing the size of the selected +1 order in the hologram's spectrum. The third and fourth steps are the spatial filtering of the +1 order and the compensation of the interference angle. The next step involves the estimation of the center of the spherical wavefront. An optional final optimization step has been included to fine-tune the estimated parameters and provide fully compensated phase images. Because the proper implementation of a framework is critical to achieve successful results, we have explicitly described the steps, including functions and toolboxes, required for reconstructing phase images without distortions. As a result, we have provided open-access codes and a user interface tool with minimum user input to reconstruct holograms recorded in a non-telecentric DHM system.
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Affiliation(s)
- Brian Bogue-Jimenez
- Department of Electrical and Computer Engineering, The University of Memphis, Memphis, Tennessee, United States of America
| | - Carlos Trujillo
- School of Applied Sciences and Engineering, Universidad EAFIT, Medellin, Colombia
| | - Ana Doblas
- Department of Electrical and Computer Engineering, The University of Memphis, Memphis, Tennessee, United States of America
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Brault D, Olivier T, Faure N, Dixneuf S, Kolytcheff C, Charmette E, Soulez F, Fournier C. Multispectral in-line hologram reconstruction with aberration compensation applied to Gram-stained bacteria microscopy. Sci Rep 2023; 13:14437. [PMID: 37660181 PMCID: PMC10475072 DOI: 10.1038/s41598-023-41079-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/21/2023] [Indexed: 09/04/2023] Open
Abstract
In multispectral digital in-line holographic microscopy (DIHM), aberrations of the optical system affect the repeatability of the reconstruction of transmittance, phase and morphology of the objects of interest. Here we address this issue first by model fitting calibration using transparent beads inserted in the sample. This step estimates the aberrations of the optical system as a function of the lateral position in the field of view and at each wavelength. Second, we use a regularized inverse problem approach (IPA) to reconstruct the transmittance and phase of objects of interest. Our method accounts for shift-variant chromatic and geometrical aberrations in the forward model. The multi-wavelength holograms are jointly reconstructed by favouring the colocalization of the object edges. The method is applied to the case of bacteria imaging in Gram-stained blood smears. It shows our methodology evaluates aberrations with good repeatability. This improves the repeatability of the reconstructions and delivers more contrasted spectral signatures in transmittance and phase, which could benefit applications of microscopy, such as the analysis and classification of stained bacteria.
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Affiliation(s)
- Dylan Brault
- Université Jean Monnet Saint-Etienne, CNRS, Institut d Optique Graduate School, Laboratoire Hubert Curien UMR 5516, 42023, Saint-Etienne, France
| | - Thomas Olivier
- Université Jean Monnet Saint-Etienne, CNRS, Institut d Optique Graduate School, Laboratoire Hubert Curien UMR 5516, 42023, Saint-Etienne, France
| | - Nicolas Faure
- bioMérieux, Centre Christophe Mérieux, 38024, Grenoble, France
| | - Sophie Dixneuf
- BIOASTER, Bioassays, Microsystems and Optical Engineering Unit, Lyon, France
| | | | | | - Ferréol Soulez
- Univ. de Lyon, Université Lyon1, ENS de Lyon, CNRS, Centre de Recherche Astrophysique de Lyon, UMR 5574, 69230, Saint-Genis-Laval, France
| | - Corinne Fournier
- Université Jean Monnet Saint-Etienne, CNRS, Institut d Optique Graduate School, Laboratoire Hubert Curien UMR 5516, 42023, Saint-Etienne, France.
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7
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George MB, Lew B, Liang Z, Blair S, Zhu Z, Cui N, Ludwig J, Zayed M, Selmic L, Gruev V. Fluorescence-guided surgical system using holographic display: from phantom studies to canine patients. J Biomed Opt 2023; 28:096003. [PMID: 37736312 PMCID: PMC10509484 DOI: 10.1117/1.jbo.28.9.096003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 09/23/2023]
Abstract
Significance Holographic display technology is a promising area of research that can lead to significant advancements in cancer surgery. We present the benefits of combining bioinspired multispectral imaging technology with holographic goggles for fluorescence-guided cancer surgery. Through a series of experiments with 43D-printed phantoms, small animal models of cancer, and surgeries on canine patients with head and neck cancer, we showcase the advantages of this holistic approach. Aim The aim of our study is to demonstrate the feasibility and potential benefits of utilizing holographic display for fluorescence-guided surgery through a series of experiments involving 3D-printed phantoms and canine patients with head and neck cancer. Approach We explore the integration of a bioinspired camera with a mixed reality headset to project fluorescent images as holograms onto a see-through display, and we demonstrate the potential benefits of this technology through benchtop and in vivo animal studies. Results Our complete imaging and holographic display system showcased improved delineation of fluorescent targets in phantoms compared with the 2D monitor display approach and easy integration into the veterinarian surgical workflow. Conclusions Based on our findings, it is evident that our comprehensive approach, which combines a bioinspired multispectral imaging sensor with holographic goggles, holds promise in enhancing the presentation of fluorescent information to surgeons during intraoperative scenarios while minimizing disruptions.
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Affiliation(s)
- Mebin B. George
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
| | - Benjamin Lew
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
| | - Zuodong Liang
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
| | - Steven Blair
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
| | - Zhongmin Zhu
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
| | - Nan Cui
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
| | - Jamie Ludwig
- University of Illinois at Urbana-Champaign, Division of Animal Resources, Urbana, Illinois, United States
| | - Mohamed Zayed
- Washington University in St. Louis, Department of Surgery, St. Louis, Missouri, United States
| | - Laura Selmic
- Ohio State University, Department of Veterinary Clinical Sciences, Columbus, Ohio, United States
| | - Viktor Gruev
- University of Illinois at Urbana-Champaign, Department of Electrical and Computer Engineering, Urbana, Illinois, United States
- University of Illinois at Urbana-Champaign, Department of Bioengineering, Urbana, Illinois, United States
- University of Illinois at Urbana-Champaign, Beckman Institute for Advanced Science and Technology, Urbana, Illinois, United States
- University of Illinois at Urbana-Champaign, Carle Illinois College of Medicine, Urbana, Illinois, United States
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Bollmann Y, Modol L, Tressard T, Vorobyev A, Dard R, Brustlein S, Sims R, Bendifallah I, Leprince E, de Sars V, Ronzitti E, Baude A, Adesnik H, Picardo MA, Platel JC, Emiliani V, Angulo-Garcia D, Cossart R. Prominent in vivo influence of single interneurons in the developing barrel cortex. Nat Neurosci 2023; 26:1555-1565. [PMID: 37653166 DOI: 10.1038/s41593-023-01405-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 07/13/2023] [Indexed: 09/02/2023]
Abstract
Spontaneous synchronous activity is a hallmark of developing brain circuits and promotes their formation. Ex vivo, synchronous activity was shown to be orchestrated by a sparse population of highly connected GABAergic 'hub' neurons. The recent development of all-optical methods to record and manipulate neuronal activity in vivo now offers the unprecedented opportunity to probe the existence and function of hub cells in vivo. Using calcium imaging, connectivity analysis and holographic optical stimulation, we show that single GABAergic, but not glutamatergic, neurons influence population dynamics in the barrel cortex of non-anaesthetized mouse pups. Single GABAergic cells mainly exert an inhibitory influence on both spontaneous and sensory-evoked population bursts. Their network influence scales with their functional connectivity, with highly connected hub neurons displaying the strongest impact. We propose that hub neurons function in tailoring intrinsic cortical dynamics to external sensory inputs.
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Affiliation(s)
- Yannick Bollmann
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Laura Modol
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Thomas Tressard
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Artem Vorobyev
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Robin Dard
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Sophie Brustlein
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Ruth Sims
- Wavefront-Engineering Microscopy Group, Photonics Department, Vision Institute, Sorbonne University, INSERM, CNRS, Paris, France
| | - Imane Bendifallah
- Wavefront-Engineering Microscopy Group, Photonics Department, Vision Institute, Sorbonne University, INSERM, CNRS, Paris, France
| | - Erwan Leprince
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Vincent de Sars
- Wavefront-Engineering Microscopy Group, Photonics Department, Vision Institute, Sorbonne University, INSERM, CNRS, Paris, France
| | - Emiliano Ronzitti
- Wavefront-Engineering Microscopy Group, Photonics Department, Vision Institute, Sorbonne University, INSERM, CNRS, Paris, France
| | - Agnès Baude
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Hillel Adesnik
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, CA, USA
- Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, USA
| | - Michel Aimé Picardo
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Jean-Claude Platel
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France
| | - Valentina Emiliani
- Wavefront-Engineering Microscopy Group, Photonics Department, Vision Institute, Sorbonne University, INSERM, CNRS, Paris, France
| | - David Angulo-Garcia
- Departamento de Matemáticas y Estadística, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Colombia, Manizales, Colombia
| | - Rosa Cossart
- Aix Marseille Univ, Inserm, INMED, Turing Center for Living Systems, Marseille, France.
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9
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Liu T, Li Y, Koydemir HC, Zhang Y, Yang E, Eryilmaz M, Wang H, Li J, Bai B, Ma G, Ozcan A. Rapid and stain-free quantification of viral plaque via lens-free holography and deep learning. Nat Biomed Eng 2023; 7:1040-1052. [PMID: 37349390 PMCID: PMC10427422 DOI: 10.1038/s41551-023-01057-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 05/14/2023] [Indexed: 06/24/2023]
Abstract
A plaque assay-the gold-standard method for measuring the concentration of replication-competent lytic virions-requires staining and usually more than 48 h of runtime. Here we show that lens-free holographic imaging and deep learning can be combined to expedite and automate the assay. The compact imaging device captures phase information label-free at a rate of approximately 0.32 gigapixels per hour per well, covers an area of about 30 × 30 mm2 and a 10-fold larger dynamic range of virus concentration than standard assays, and quantifies the infected area and the number of plaque-forming units. For the vesicular stomatitis virus, the automated plaque assay detected the first cell-lysing events caused by viral replication as early as 5 h after incubation, and in less than 20 h it detected plaque-forming units at rates higher than 90% at 100% specificity. Furthermore, it reduced the incubation time of the herpes simplex virus type 1 by about 48 h and that of the encephalomyocarditis virus by about 20 h. The stain-free assay should be amenable for use in virology research, vaccine development and clinical diagnosis.
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Affiliation(s)
- Tairan Liu
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA
| | - Yuzhu Li
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA
| | - Hatice Ceylan Koydemir
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
- Center for Remote Health Technologies and Systems, Texas A&M University, College Station, TX, USA
| | - Yijie Zhang
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA
| | - Ethan Yang
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Department of Mathematics, University of California, Los Angeles, CA, USA
| | - Merve Eryilmaz
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
| | - Hongda Wang
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA
| | - Jingxi Li
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA
| | - Bijie Bai
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- Bioengineering Department, University of California, Los Angeles, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA
| | - Guangdong Ma
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA
- School of Physics, Xi'an Jiaotong University, Xi'an, China
| | - Aydogan Ozcan
- Electrical and Computer Engineering Department, University of California, Los Angeles, CA, USA.
- Bioengineering Department, University of California, Los Angeles, USA.
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, USA.
- Department of Surgery, University of California, Los Angeles, CA, USA.
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10
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Schneider MD. Empty space and the (positive) cosmological constant. Stud Hist Philos Sci 2023; 100:12-21. [PMID: 37301081 DOI: 10.1016/j.shpsa.2023.05.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 03/27/2023] [Accepted: 05/29/2023] [Indexed: 06/12/2023]
Abstract
I discuss empty space, as it appears in the physical foundations of relativistic field theories and in the semiclassical study of isolated systems. Of particular interest is the relationship between empirical measurements of the cosmological constant and the question of appropriate representation of empty space by spacetimes, or models of general relativity. Also considered is a speculative move that shows up in one corner of quantum gravity research. In pursuit of holographic quantum cosmology given a positive cosmological constant, there is evidently some freedom available for theoretical physicists to pick between two physically inequivalent spacetime representations of empty space, moving forward: de Sitter spacetime or its 'elliptic' cousin.
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11
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Karim E, Park B, Marcelot C, Soldan V, Balor S, Bals S, Le Forestier A, Plisson-Chastang C, Gatel C, Gleizes PE, Snoeck E. In-line and Off-axis Electron Holography for the Study of Biological. Microsc Microanal 2023; 29:1015-1016. [PMID: 37613525 DOI: 10.1093/micmic/ozad067.512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Elio Karim
- Centre d'élaboration de matériaux et d'études structurales (CEMES) - CNRS, Université de Toulouse, I3EM Team, Toulouse, France
- Molecular and Cellular Developpment (MCD) and METi, Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France
| | - Bumsu Park
- Centre d'élaboration de matériaux et d'études structurales (CEMES) - CNRS, Université de Toulouse, I3EM Team, Toulouse, France
| | - Cécile Marcelot
- Centre d'élaboration de matériaux et d'études structurales (CEMES) - CNRS, Université de Toulouse, I3EM Team, Toulouse, France
| | - Vanessa Soldan
- Molecular and Cellular Developpment (MCD) and METi, Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France
| | - Stéphanie Balor
- Molecular and Cellular Developpment (MCD) and METi, Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France
| | - Sarah Bals
- Electron Microscopy for Materials Science (EMAT) - University of Antwerp, Campus Groenenborger - U436, Groenenborgerlaan, Antwerp, Belgium
| | - Amélie Le Forestier
- Laboratoire Physique des Solides (LPS) - Université Paris-Saclay, CNRS UMR 8502, Orsay Cédex, France
| | - Célia Plisson-Chastang
- Molecular and Cellular Developpment (MCD) and METi, Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France
| | - Christophe Gatel
- Centre d'élaboration de matériaux et d'études structurales (CEMES) - CNRS, Université de Toulouse, I3EM Team, Toulouse, France
| | - Pierre-Emmanuel Gleizes
- Molecular and Cellular Developpment (MCD) and METi, Centre de Biologie Intégrative, Université de Toulouse, CNRS, Toulouse, France
| | - Etienne Snoeck
- Centre d'élaboration de matériaux et d'études structurales (CEMES) - CNRS, Université de Toulouse, I3EM Team, Toulouse, France
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12
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Yue G, Li Y. Integrated lithium niobate optical phased array for two-dimensional beam steering. Opt Lett 2023; 48:3633-3636. [PMID: 37450712 DOI: 10.1364/ol.491748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Accepted: 06/15/2023] [Indexed: 07/18/2023]
Abstract
Optical phased arrays (OPAs) with high speed, low power consumption, and low insertion loss are appealing for various applications, including light detection and ranging, free-space communication, image projection, and imaging. These OPAs can be achieved by fully harnessing the advantages of integrated lithium niobate (LN) photonics, which include high electro-optical modulation speed, low driving voltage, and low optical loss. Here we present an integrated LN OPA that operates in the near-infrared regime. Our experimental results demonstrate 24 × 8° two-dimensional beam steering, a far-field beam spot with a full width at half maximum of 2 × 0.6°, and a sidelobe suppression level of 10 dB. Furthermore, the phase modulator of our OPA exhibits a half-wave voltage of 6 V. The low power consumption exhibited by our OPA makes it highly attractive for a wide range of applications. Beyond conventional applications, our OPA's high speed opens up the possibility of novel applications such as high-density point cloud generation and tomographic holography.
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13
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Mangini F, Ferraro M, Sun Y, Gervaziev M, Parra-Rivas P, Kharenko DS, Couderc V, Wabnitz S. Modal phase-locking in multimode nonlinear optical fibers. Opt Lett 2023; 48:3677-3680. [PMID: 37450723 DOI: 10.1364/ol.494543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 06/19/2023] [Indexed: 07/18/2023]
Abstract
Spatial beam self-cleaning, a manifestation of the Kerr effect in graded-index multimode fibers, involves a nonlinear transfer of power among modes, which leads to robust bell-shaped output beams. The resulting mode power distribution can be described by statistical mechanics arguments. Although the spatial coherence of the output beam was experimentally demonstrated, there is no direct study of modal phase evolutions. Based on a holographic mode decomposition method, we reveal that nonlinear spatial phase-locking occurs between the fundamental and its neighboring low-order modes, in agreement with theoretical predictions. As such, our results dispel the current belief that the spatial beam self-cleaning effect is the mere result of a wave thermalization process.
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14
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Bermejo N, Romero-Ante JD, Manrique-Cordoba J, Sabater-Navarro JM, Juan CG. Augmented Reality Holographic Visualization System for Surgery Auxiliary Visualization: Proof of Concept for Surgical Training. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083752 DOI: 10.1109/embc40787.2023.10341182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
An Augmented Reality (AR) system based on the holographic projection of the relevant anatomic structures is proposed for auxiliary visualization during surgeries. The current two-dimensional visualization systems require the surgeons to mentally extract the associated three-dimensional information during the interventions, which entails risks and complications. This work shows an AR holographic projection system for real-time three-dimensional representation of the relevant surgical information, thus overcoming this problem. As an initial proof of concept, the system is experimentally assessed as potential surgery training tool.Clinical Relevance- This work explores the potential of AR holographic projection systems for intraoperative assistance to the surgical team, starting from its possible use as surgery training and planning tool.
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15
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Ochner H, Szilagyi S, Edte M, Esser TK, Rauschenbach S, Malavolti L, Kern K. Imaging conformations of holo- and apo-transferrin on the single-molecule level by low-energy electron holography. Sci Rep 2023; 13:10241. [PMID: 37353650 PMCID: PMC10290138 DOI: 10.1038/s41598-023-37116-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 06/15/2023] [Indexed: 06/25/2023] Open
Abstract
Conformational changes play a key role in the biological function of many proteins, thereby sustaining a multitude of processes essential to life. Thus, the imaging of the conformational space of proteins exhibiting such conformational changes is of great interest. Low-energy electron holography (LEEH) in combination with native electrospray ion beam deposition (ES-IBD) has recently been demonstrated to be capable of exploring the conformational space of conformationally highly variable proteins on the single-molecule level. While the previously studied conformations were induced by changes in environment, it is of relevance to assess the performance of this imaging method when applied to protein conformations inherently tied to a function-related conformational change. We show that LEEH imaging can distinguish different conformations of transferrin, the major iron transport protein in many organisms, by resolving a nanometer-scale cleft in the structure of the iron-free molecule (apo-transferrin) resulting from the conformational change associated with the iron binding/release process. This, along with a statistical analysis of the data, which evidences a degree of flexibility of the molecules, indicates that LEEH is a viable technique for imaging function-related conformational changes in individual proteins.
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Affiliation(s)
- Hannah Ochner
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany.
| | - Sven Szilagyi
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Moritz Edte
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
| | - Tim K Esser
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
- Thermo Fisher Scientific, 1 Boundary Park, Hemel Hempstead, HP2 7GE, UK
| | - Stephan Rauschenbach
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Luigi Malavolti
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany.
| | - Klaus Kern
- Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569, Stuttgart, Germany
- Institut de Physique, École Polytechnique Fédérale de Lausanne, 1015, Lausanne, Switzerland
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16
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Wen K, Gao Z, Liu R, Fang X, Ma Y, Zheng J, An S, Kozacki T, Gao P. Structured illumination phase and fluorescence microscopy for bioimaging. Appl Opt 2023; 62:4871-4879. [PMID: 37707263 DOI: 10.1364/ao.486718] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/14/2023] [Indexed: 09/15/2023]
Abstract
This study presents a dual-modality microscopic imaging approach that combines quantitative phase microscopy and fluorescence microscopy based on structured illumination (SI) to provide structural and functional information for the same sample. As the first imaging modality, structured illumination digital holographic microscopy (SI-DHM) is implemented along the transmission beam path. SI-DHM acts as a label-free, noninvasive approach and provides high-contrast and quantitative phase images utilizing the refractive index contrast of the inner structures of samples against the background. As the second imaging modality, structured illumination (fluorescence) microscopy (SIM) is constructed along the reflection beam path. SIM utilizes fluorescent labeling and provides super-resolution images for specific functional structures of samples. We first experimentally demonstrated phase imaging of SI-DHM on rice leaves and fluorescence (SIM) imaging on mouse kidney sections. Then, we demonstrated dual-modality imaging of biological samples, using DHM to acquire the overall cell morphology and SIM to obtain specific functional structures. These results prove that the proposed technique is of great importance in biomedical studies, such as providing insight into cell physiology by visualizing and quantifying subcellular structures.
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17
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Bhatt S, Butola A, Kumar A, Thapa P, Joshi A, Jadhav S, Singh N, Prasad DK, Agarwal K, Mehta DS. Single-shot multispectral quantitative phase imaging of biological samples using deep learning. Appl Opt 2023; 62:3989-3999. [PMID: 37706710 DOI: 10.1364/ao.482788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 04/18/2023] [Indexed: 09/15/2023]
Abstract
Multispectral quantitative phase imaging (MS-QPI) is a high-contrast label-free technique for morphological imaging of the specimens. The aim of the present study is to extract spectral dependent quantitative information in single-shot using a highly spatially sensitive digital holographic microscope assisted by a deep neural network. There are three different wavelengths used in our method: λ=532, 633, and 808 nm. The first step is to get the interferometric data for each wavelength. The acquired datasets are used to train a generative adversarial network to generate multispectral (MS) quantitative phase maps from a single input interferogram. The network was trained and validated on two different samples: the optical waveguide and MG63 osteosarcoma cells. Validation of the present approach is performed by comparing the predicted MS phase maps with numerically reconstructed (F T+T I E) phase maps and quantifying with different image quality assessment metrices.
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18
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McKay GN, Oommen A, Pacheco C, Chen MT, Ray SC, Vidal R, Haeffele BD, Durr NJ. Lens Free Holographic Imaging for Urinary Tract Infection Screening. IEEE Trans Biomed Eng 2023; 70:1053-1061. [PMID: 36129868 PMCID: PMC10027617 DOI: 10.1109/tbme.2022.3208220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The diagnosis of urinary tract infection (UTI) currently requires precise specimen collection, handling infectious human waste, controlled urine storage, and timely transportation to modern laboratory equipment for analysis. Here we investigate holographic lens free imaging (LFI) to show its promise for enabling automatic urine analysis at the patient bedside. METHODS We introduce an LFI system capable of resolving important urine clinical biomarkers such as red blood cells, white blood cells, crystals, and casts in 2 mm thick urine phantoms. RESULTS This approach is sensitive to the particulate concentrations relevant for detecting several clinical urine abnormalities such as hematuria and pyuria, linearly correlating to ground truth hemacytometer measurements with R 2 = 0.9941 and R 2 = 0.9973, respectively. We show that LFI can estimate E. coli concentrations of 10 3 to 10 5 cells/mL by counting individual cells, and is sensitive to concentrations of 10 5 cells/mL to 10 8 cells/mL by analyzing hologram texture. Further, LFI measurements of blood cell concentrations are relatively insensitive to changes in bacteria concentrations of over seven orders of magnitude. Lastly, LFI reveals clear differences between UTI-positive and UTI-negative urine from human patients. CONCLUSION LFI is sensitive to clinically-relevant concentrations of bacteria, blood cells, and other sediment in large urine volumes. SIGNIFICANCE Together, these results show promise for LFI as a tool for urine screening, potentially offering early, point-of-care detection of UTI and other pathological processes.
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19
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Melde K, Kremer H, Shi M, Seneca S, Frey C, Platzman I, Degel C, Schmitt D, Schölkopf B, Fischer P. Compact holographic sound fields enable rapid one-step assembly of matter in 3D. Sci Adv 2023; 9:eadf6182. [PMID: 36753553 PMCID: PMC9908023 DOI: 10.1126/sciadv.adf6182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 01/09/2023] [Indexed: 06/18/2023]
Abstract
Acoustic waves exert forces when they interact with matter. Shaping ultrasound fields precisely in 3D thus allows control over the force landscape and should permit particulates to fall into place to potentially form whole 3D objects in "one shot." This is promising for rapid prototyping, most notably biofabrication, since conventional methods are typically slow and apply mechanical or chemical stress on biological cells. Here, we realize the generation of compact holographic ultrasound fields and demonstrate the one-step assembly of matter using acoustic forces. We combine multiple holographic fields that drive the contactless assembly of solid microparticles, hydrogel beads, and biological cells inside standard labware. The structures can be fixed via gelation of the surrounding medium. In contrast to previous work, this approach handles matter with positive acoustic contrast and does not require opposing waves, supporting surfaces or scaffolds. We envision promising applications of 3D holographic ultrasound fields in tissue engineering and additive manufacturing.
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Affiliation(s)
- Kai Melde
- Micro, Nano and Molecular Systems Group, Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany
| | - Heiner Kremer
- Empirical Inference Department, Max Planck Institute for Intelligent Systems, Max-Planck-Ring 4, 72076 Tübingen, Germany
| | - Minghui Shi
- Micro, Nano and Molecular Systems Group, Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany
| | - Senne Seneca
- Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
| | - Christoph Frey
- Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
| | - Ilia Platzman
- Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany
- Department of Cellular Biophysics, Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
| | - Christian Degel
- Technical Ultrasound Department, Fraunhofer Institute for Biomedical Engineering, Ensheimer Straße 48, 66386 St. Ingbert, Germany
| | - Daniel Schmitt
- Technical Ultrasound Department, Fraunhofer Institute for Biomedical Engineering, Ensheimer Straße 48, 66386 St. Ingbert, Germany
| | - Bernhard Schölkopf
- Empirical Inference Department, Max Planck Institute for Intelligent Systems, Max-Planck-Ring 4, 72076 Tübingen, Germany
| | - Peer Fischer
- Micro, Nano and Molecular Systems Group, Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials, Heidelberg University, Im Neuenheimer Feld 225, 69120 Heidelberg, Germany
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20
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Zachman MJ. State-of-the-Art Electron Microscopy For Physical Sciences Research. J Vis Exp 2023. [PMID: 37602848 DOI: 10.3791/64973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023] Open
Abstract
ARTICLES DISCUSSED Moon, T., Colletta, M., Kourkoutis, L. F. Nanoscale characterization of liquid-solid interfaces by couple cryo-focused ion beam milling with scanning electron microscopy and spectroscopy. Journal of Visualized Experiments. (185), e61955 (2022). Ohtsuka, M., Muto, S. Quantitative atomic-site analysis of functional dopants/point defects in crystalline materials by electron-channeling-enhanced microanalysis. Journal of Visualized Experiments. (171), e62015 (2021). Miao, L., Chmielewski, A., Mukherjee, D., Alem, N. Picometer-precision atomic position tracking through electron microscopy. Journal of Visualized Experiments. (173), e62164 (2021). Unocic, K. A. et al. Performing in situ closed-cell gas reactions in the transmission electron microscope. Journal of Visualized Experiments. (173), e62174 (2021). Zheng, F. et al. Magnetic field mapping using off-axis electron holography in the transmission electron microscope. Journal of Visualized Experiments. (166), e61907 (2020).
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Affiliation(s)
- Michael J Zachman
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory;
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21
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Abstract
Devices used for meta-optics display are currently undergoing a revolutionary transition from static to dynamic. Despite various tuning strategy demonstrations such as mechanical, electrical, optical, and thermal tunings, a longstanding challenge for their practical application has been the achievement of a conveniently accessible real-life tuning scheme for realizing versatile functionality dynamics outside the laboratory. In this study, we demonstrate a practical tuning strategy to realize a dynamic color printing with a switchable meta-holography exhibition based on hydrogel-based nanocavities. On the basis of the inflation sensitivity of a hydrogel to humidity alteration, its transmissive color was notably tuned from 450 to 750 nm. More intriguingly, by controlling the sample dry/immersed states in real time, we successfully enabled dual-channel switchable meta-holography. With the advantages of facile architecture, daily stimulus with large-area modulation, and high chromaticity, our proposed hydrogel-based nanocavities provide a promising path toward tunable display/encryption, optical sensors, and next-generation display technology.
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Affiliation(s)
- Chenjie Dai
- Electronic Information School, Wuhan University, Wuhan 430072, China
| | - Zejing Wang
- Electronic Information School, Wuhan University, Wuhan 430072, China
| | - Yangyang Shi
- Electronic Information School, Wuhan University, Wuhan 430072, China
| | - Zhe Li
- Electronic Information School, Wuhan University, Wuhan 430072, China
| | - Zhongyang Li
- Electronic Information School, Wuhan University, Wuhan 430072, China
- Wuhan Institute of Quantum Technology, Wuhan 430206, China
- School of Microelectronics, Wuhan University, Wuhan 430072, China
- Suzhou Institute of Wuhan University, Suzhou 215123, China
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22
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Wang Z, Tu K, Pang Y, Xu M, Lv G, Feng Q, Wang A, Ming H. Lensless phase-only holographic retinal projection display based on the error diffusion algorithm. Opt Express 2022; 30:46450-46459. [PMID: 36558598 DOI: 10.1364/oe.477816] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Holographic retinal projection display (RPD) can project images directly onto the retina without any lens by encoding a convergent spherical wave phase with the target images. Conventional amplitude-type holographic RPD suffers from strong zero-order light and conjugate. In this paper, a lensless phase-only holographic RPD based on error diffusion algorithm is demonstrated. It is found that direct error diffusion of the complex Fresnel hologram leads to low image quality. Thus, a post-addition phase method is proposed based on angular spectrum diffraction. The spherical wave phase is multiplied after error diffusion process, and acts as an imaging lens. In this way, the error diffusion functions better due to reduced phase difference between adjacent pixels, and a virtual image with improved quality is produced. The viewpoint is easily deflected just by changing the post-added spherical phase. A full-color holographic RPD with adjustable eyebox is demonstrated experimentally with time-multiplexing technique.
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Petkova R, Poulkov V, Manolova A, Tonchev K. Challenges in Implementing Low-Latency Holographic-Type Communication Systems. Sensors (Basel) 2022; 22:9617. [PMID: 36559984 PMCID: PMC9784801 DOI: 10.3390/s22249617] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/28/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Holographic-type communication (HTC) permits new levels of engagement between remote users. It is anticipated that it will give a very immersive experience while enhancing the sense of spatial co-presence. In addition to the newly revealed advantages, however, stringent system requirements are imposed, such as multi-sensory and multi-dimensional data capture and reproduction, ultra-lightweight processing, ultra-low-latency transmission, realistic avatar embodiment conveying gestures and facial expressions, support for an arbitrary number of participants, etc. In this paper, we review the current limitations to the HTC system implementation and systemize the main challenges into a few major groups. Furthermore, we propose a conceptual framework for the realization of an HTC system that will guarantee the desired low-latency transmission, lightweight processing, and ease of scalability, all accompanied with a higher level of realism in human body appearance and dynamics.
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24
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Li Z, Wan C, Dai C, Li Z. Immersion-Triggered Active Switch for Spin-Decoupled Meta-Optics Multi-Display. Small 2022; 18:e2205041. [PMID: 36316231 DOI: 10.1002/smll.202205041] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Meta-optics exhibits many promising applications in various fields of optical displays, imaging, and information encryption. However, heading towards next-generation intelligent displays, its broad implementation is critically restricted by the lack of practical active tuning capability. Beyond the conventional electrical/optical/mechanical/thermal tuning methods, liquid immersion has recently emerged as a facile mechanism for active spectral tuning. To further conquer the challenge in achieving active complicated optical-field manipulation, here, an environment-compliant switch for meta-optics multi-display is originally proposed and experimentally realized via the liquid immersion tuning scheme. By designing the spin-decoupled phase array for left-/right-handed circular polarizations, it flexibly presents quad-fold independent-encoded phase distributions for different medium-relevant and polarization-controlled channels, thus enabling four switchable holographic images through immersion tuning. Such a proposed immersion tuning design is quite a straightforward approach for meta-optics holographic displays, enjoying full-spatial usage, design flexibility, and large-scale facile implementation. Overall, the proposed liquid immersion tuning strategy for a meta-optics multi-display would strongly benefit the practical applications in biochemical sensing, environment-adaptive displays, and information encryption.
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Affiliation(s)
- Zhe Li
- Electronic Information School, Wuhan University, Wuhan, 430072, P. R. China
| | - Chengwei Wan
- School of Electrical and Electronic Engineering, Hubei University of Technology, Wuhan, 430068, P. R. China
| | - Chenjie Dai
- Electronic Information School, Wuhan University, Wuhan, 430072, P. R. China
| | - Zhongyang Li
- Electronic Information School, Wuhan University, Wuhan, 430072, P. R. China
- Wuhan Institute of Quantum Technology, Wuhan, 430206, P. R. China
- School of Microelectronics, Wuhan University, Wuhan, 430072, P. R. China
- Suzhou Institute of Wuhan University, Suzhou, 215123, P. R. China
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25
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Zhou Hagström N, Schneider M, Kerber N, Yaroslavtsev A, Burgos Parra E, Beg M, Lang M, Günther CM, Seng B, Kammerbauer F, Popescu H, Pancaldi M, Neeraj K, Polley D, Jangid R, Hrkac SB, Patel SKK, Ovcharenko S, Turenne D, Ksenzov D, Boeglin C, Baidakova M, von Korff Schmising C, Borchert M, Vodungbo B, Chen K, Luo C, Radu F, Müller L, Martínez Flórez M, Philippi-Kobs A, Riepp M, Roseker W, Grübel G, Carley R, Schlappa J, Van Kuiken BE, Gort R, Mercadier L, Agarwal N, Le Guyader L, Mercurio G, Teichmann M, Delitz JT, Reich A, Broers C, Hickin D, Deiter C, Moore J, Rompotis D, Wang J, Kane D, Venkatesan S, Meier J, Pallas F, Jezynski T, Lederer M, Boukhelef D, Szuba J, Wrona K, Hauf S, Zhu J, Bergemann M, Kamil E, Kluyver T, Rosca R, Spirzewski M, Kuster M, Turcato M, Lomidze D, Samartsev A, Engelke J, Porro M, Maffessanti S, Hansen K, Erdinger F, Fischer P, Fiorini C, Castoldi A, Manghisoni M, Wunderer CB, Fullerton EE, Shpyrko OG, Gutt C, Sanchez-Hanke C, Dürr HA, Iacocca E, Nembach HT, Keller MW, Shaw JM, Silva TJ, Kukreja R, Fangohr H, Eisebitt S, Kläui M, Jaouen N, Scherz A, Bonetti S, Jal E. Megahertz-rate ultrafast X-ray scattering and holographic imaging at the European XFEL. J Synchrotron Radiat 2022; 29:1454-1464. [PMID: 36345754 PMCID: PMC9641564 DOI: 10.1107/s1600577522008414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/23/2022] [Indexed: 06/16/2023]
Abstract
The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence and pulse duration. All XFEL facilities built until recently provided X-ray pulses at a relatively low repetition rate, with limited data statistics. Here, results from the first megahertz-repetition-rate X-ray scattering experiments at the Spectroscopy and Coherent Scattering (SCS) instrument of the European XFEL are presented. The experimental capabilities that the SCS instrument offers, resulting from the operation at megahertz repetition rates and the availability of the novel DSSC 2D imaging detector, are illustrated. Time-resolved magnetic X-ray scattering and holographic imaging experiments in solid state samples were chosen as representative, providing an ideal test-bed for operation at megahertz rates. Our results are relevant and applicable to any other non-destructive XFEL experiments in the soft X-ray range.
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Affiliation(s)
| | - Michael Schneider
- Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin, Germany
| | - Nico Kerber
- Institute of Physics, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany
| | - Alexander Yaroslavtsev
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - Erick Burgos Parra
- Synchrotron SOLEIL, Saint-Aubin, Boite Postale 48, 91192 Gif-sur-Yvette Cedex, France
- Unité Mixte de Physique, CNRS, Thales, Université Paris-Saclay, 91767 Palaiseau, France
| | - Marijan Beg
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Department of Earth Science and Engineering, Imperial College London, London SW7 2AZ, United Kingdom
| | - Martin Lang
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Christian M. Günther
- Technische Universität Berlin, Zentraleinrichtung Elektronenmikroskopie (ZELMI), Berlin, Germany
| | - Boris Seng
- Institute of Physics, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany
- Institut Jean Lamour, Nancy, France
| | - Fabian Kammerbauer
- Institute of Physics, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany
| | - Horia Popescu
- Synchrotron SOLEIL, Saint-Aubin, Boite Postale 48, 91192 Gif-sur-Yvette Cedex, France
| | - Matteo Pancaldi
- Department of Physics, Stockholm University, 106 91 Stockholm, Sweden
| | - Kumar Neeraj
- Department of Physics, Stockholm University, 106 91 Stockholm, Sweden
| | - Debanjan Polley
- Department of Physics, Stockholm University, 106 91 Stockholm, Sweden
| | - Rahul Jangid
- Department of Materials Science and Engineering, University of California Davis, CA, USA
| | - Stjepan B. Hrkac
- Department of Physics, University of California San Diego, La Jolla, CA 92093, USA
| | - Sheena K. K. Patel
- Department of Physics, University of California San Diego, La Jolla, CA 92093, USA
- Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA
| | | | - Diego Turenne
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - Dmitriy Ksenzov
- Naturwissenschaftlich-Technische Fakultät – Department Physik, Universität Siegen, Siegen, Germany
| | - Christine Boeglin
- University of Strasbourg – CNRS, IPCMS, UMR 7504, 67000 Strasbourg, France
| | - Marina Baidakova
- Ioffe Institute, 26 Politekhnicheskaya, St Petersburg 194021, Russian Federation
| | | | - Martin Borchert
- Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin, Germany
| | - Boris Vodungbo
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique – Matière et Rayonnement, LCPMR, 75005 Paris, France
| | - Kai Chen
- Helmholtz-Zentrum Berlin für Materialien und Energie, 12489 Berlin, Germany
| | - Chen Luo
- Helmholtz-Zentrum Berlin für Materialien und Energie, 12489 Berlin, Germany
| | - Florin Radu
- Helmholtz-Zentrum Berlin für Materialien und Energie, 12489 Berlin, Germany
| | - Leonard Müller
- Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
- Universität Hamburg, Hamburg, Germany
| | | | | | - Matthias Riepp
- Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
| | | | - Gerhard Grübel
- Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
| | - Robert Carley
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | | | - Rafael Gort
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Naman Agarwal
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Department of Physics and Astronomy, Aarhus University, Ny Munkegade 120, 8000C Aarhus, Denmark
| | | | | | | | | | | | | | - David Hickin
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - James Moore
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Jinxiong Wang
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Daniel Kane
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Joachim Meier
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | | | | | | | - Janusz Szuba
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Steffen Hauf
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Jun Zhu
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Ebad Kamil
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - Robert Rosca
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Michał Spirzewski
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- National Centre for Nuclear Research (NCBJ), A. Solłana 7, 05-400 Otwock-Świerk, Poland
| | - Markus Kuster
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | | | - David Lomidze
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Andrey Samartsev
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Jan Engelke
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
| | - Matteo Porro
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, 30172 Venezia, Italy
| | | | - Karsten Hansen
- Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
| | - Florian Erdinger
- Institute of Computer Engineering, Heidelberg University, Germany
| | - Peter Fischer
- Institute of Computer Engineering, Heidelberg University, Germany
| | - Carlo Fiorini
- Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, 20133 Milano, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Milano, Italy
| | - Andrea Castoldi
- Politecnico di Milano, Dipartimento di Elettronica, Informazione e Bioingegneria, 20133 Milano, Italy
- Istituto Nazionale di Fisica Nucleare, Sezione di Milano, Milano, Italy
| | - Massimo Manghisoni
- Dipartimento di Ingegneria e Scienze Applicate, Università degli Studi di Bergamo, Dalmine, Italy
| | - Cornelia Beatrix Wunderer
- Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany
- Center for Free-Electron Laser Science CFEL, Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Eric E. Fullerton
- Center for Memory and Recording Research, University of California San Diego, La Jolla, CA 92093, USA
| | - Oleg G. Shpyrko
- Department of Physics, University of California San Diego, La Jolla, CA 92093, USA
| | - Christian Gutt
- Naturwissenschaftlich-Technische Fakultät – Department Physik, Universität Siegen, Siegen, Germany
| | | | - Hermann A. Dürr
- Department of Physics and Astronomy, Uppsala University, Uppsala, Sweden
| | - Ezio Iacocca
- Center for Magnetism and Magnetic Materials, University of Colorado Colorado Springs, Colorado Springs, CO 80918, USA
| | - Hans T. Nembach
- Department of Physics, University of Colorado, Boulder, CO 80309, USA
- Associate, Physical Measurement Laboratory, National Institute of Standards and Technology, Boulder, CO 80305, USA
| | - Mark W. Keller
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA
| | - Justin M. Shaw
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA
| | - Thomas J. Silva
- Quantum Electromagnetics Division, National Institute of Standards and Technology, Boulder, CO, USA
| | - Roopali Kukreja
- Department of Materials Science and Engineering, University of California Davis, CA, USA
| | - Hans Fangohr
- European XFEL, Holzkoppel 4, 22869 Schenefeld, Germany
- Faculty of Engineering and Physical Sciences, University of Southampton, Southampton SO17 1BJ, United Kingdom
- Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg, Germany
| | - Stefan Eisebitt
- Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin, Germany
- Technische Universität Berlin, Institut für Optik und Atomare Physik, Berlin, Germany
| | - Mathias Kläui
- Institute of Physics, Johannes Gutenberg-University Mainz, 55099 Mainz, Germany
| | - Nicolas Jaouen
- Synchrotron SOLEIL, Saint-Aubin, Boite Postale 48, 91192 Gif-sur-Yvette Cedex, France
| | | | - Stefano Bonetti
- Department of Physics, Stockholm University, 106 91 Stockholm, Sweden
- Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, 30172 Venezia, Italy
| | - Emmanuelle Jal
- Sorbonne Université, CNRS, Laboratoire de Chimie Physique – Matière et Rayonnement, LCPMR, 75005 Paris, France
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Li J, Hu P, Zeng Z, Jin J, Wu J, Chen X, Liu J, Li Q, Chen M, Zhang Z, Zhang Y, Lin X, Tan X. Phenanthraquinone-Doped Polymethyl Methacrylate Photopolymer for Holographic Recording. Molecules 2022; 27:molecules27196283. [PMID: 36234816 PMCID: PMC9570821 DOI: 10.3390/molecules27196283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
Phenanthraquinone-doped polymethyl methacrylate (PQ/PMMA) photopolymers are considered to be the most promising holographic storage media due to their unique properties, such as high stability, a simple preparation process, low price, and volumetric shrinkage. This paper reviews the development process of PQ/PMMA photopolymers from inception to the present, summarizes the process, and looks at the development potential of PQ/PMMA in practical applications.
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Affiliation(s)
- Jinhong Li
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Po Hu
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Zeyi Zeng
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Junchao Jin
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Junhui Wu
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Xi Chen
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Jie Liu
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Qingdong Li
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Mingyong Chen
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Zuoyu Zhang
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Yuanying Zhang
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
| | - Xiao Lin
- College of Photonic and Electronic Engineering, Fujian Normal University, Fuzhou 350117, China
- Correspondence: (X.L.); (X.T.); Tel.: +86+591-2286-0521 (X.T.)
| | - Xiaodi Tan
- Photonics Research Center, Key Laboratory of Opto-Electronic Science and for Medicine of Ministry of Education, Fujian Provincial Key Laboratory of Photonics Technology, Fujian Provincial Engineering Technology Research Center of Photoelectric Sensing Application, Fujian Normal University, Fuzhou 350117, China
- Correspondence: (X.L.); (X.T.); Tel.: +86+591-2286-0521 (X.T.)
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27
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Roy S, Field GD. An optical approach for mapping functional connectivity at single-cell resolution in brain circuits. Cell Rep Methods 2022; 2:100272. [PMID: 36046621 PMCID: PMC9421506 DOI: 10.1016/j.crmeth.2022.100272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In the current issue of Cell Reports Methods, Spampinato et al. demonstrate a multiplexed system combining holographic photo-stimulation and functional imaging that may offer a generalizable approach for revealing how signals interact in complex neural circuits.
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Affiliation(s)
- Suva Roy
- Department of Neurobiology, Duke University School of Medicine, Durham, NC, USA
| | - Greg D. Field
- Department of Neurobiology, Duke University School of Medicine, Durham, NC, USA
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28
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Wu M, Li G, Ye X, Zhou B, Zhou J, Cai J. Ultrasensitive Molecular Detection at Subpicomolar Concentrations by the Diffraction Pattern Imaging with Plasmonic Metasurfaces and Convex Holographic Gratings. Adv Sci (Weinh) 2022; 9:e2201682. [PMID: 35618447 PMCID: PMC9353501 DOI: 10.1002/advs.202201682] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/02/2022] [Indexed: 06/15/2023]
Abstract
Compact and cost-effective optical devices for highly sensitive detection of trace molecules are significant in many applications, including healthcare, pollutant monitoring and explosive detection. Nanophotonic metasurface-based sensors have been intensively attracting attentions for molecular detection. However, conventional methods often involve spectroscopic characterizations that require bulky, expensive and sophisticated spectrometers. Here, a novel ultrasensitive sensor of plasmonic metasurfaces is designed and fabricated for the detection of trace molecules. The sensor features a convex holographic grating, of which the first-order diffraction pattern of a disposable metasurface is recorded by a monochrome camera.The diffraction pattern changes with the molecules attached to the metasurface, realizing label-free and spectrometer-free molecular detection by imaging and analyzing of the diffraction pattern. By integrating the sensor with a microfluidic setup, the quantitative characterization of rabbit anti-human Immunoglobulin G (IgG) and human IgG biomolecular interactions is demonstrated with an excellent limit of detection (LOD) of 0.6 pm. Moreover, both the metasurface and holographic grating are obtained through vacuum-free solution-processed fabrications, minimizing the manufacturing cost of the sensor. A prototype of the imaging-based sensor, consisting of a white light-emitting diode (LED) and a consumer-level imaging sensor is achieved to demonstrate the potential for on-site detection.
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Affiliation(s)
- Mingxi Wu
- School of Biomedical EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Guohua Li
- School of Biomedical EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Xiangyi Ye
- School of Biomedical EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Bin Zhou
- School of Biomedical EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Jianhua Zhou
- School of Biomedical EngineeringSun Yat‐sen UniversityGuangzhou510275China
| | - Jingxuan Cai
- School of Biomedical EngineeringSun Yat‐sen UniversityGuangzhou510275China
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29
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Maddalena L, Keizers H, Pozzi P, Carroll E. Local aberration control to improve efficiency in multiphoton holographic projections. Opt Express 2022; 30:29128-29147. [PMID: 36299095 DOI: 10.1364/oe.463553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/29/2022] [Indexed: 06/16/2023]
Abstract
Optical aberrations affect the quality of light propagating through a turbid medium, where refractive index is spatially inhomogeneous. In multiphoton optical applications, such as two-photon excitation fluorescence imaging and optogenetics, aberrations non-linearly impair the efficiency of excitation. We demonstrate a sensorless adaptive optics technique to compensate aberrations in holograms projected into turbid media. We use a spatial light modulator to project custom three dimensional holographic patterns and to correct for local (anisoplanatic) distortions. The method is tested on both synthetic and biological samples to counteract aberrations arising respectively from misalignment of the optical system and from samples inhomogeneities. In both cases the anisoplanatic correction improves the intensity of the stimulation pattern at least two-fold.
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30
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Greenspan L. Holography, application, and string theory's changing nature. Stud Hist Philos Sci 2022; 94:72-86. [PMID: 35665637 DOI: 10.1016/j.shpsa.2022.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/09/2022] [Accepted: 05/09/2022] [Indexed: 06/15/2023]
Abstract
Based on string theory's framework, the gauge/gravity duality, also known as holography, has the ability to solve practical problems in low energy physical systems like metals and fluids. Holographic applications open a path for conversation and collaboration between the theory-driven, high energy culture of string theory and fields like nuclear and condensed matter physics, which in contrast place great emphasis on the empirical evidence that experiment provides. This paper takes a look at holography's history, from its roots in string theory to its present-day applications that are challenging the cultural identity of the field. I will focus on two of these applications: holographic QCD and holographic superconductivity, highlighting some of the (often incompatible) historical influences, motives, and epistemic values at play, as well as the subcultural shifts that help the collaborations work. The extent to which holographic research - arguably string theory's most successful and prolific area - must change its subcultural identity in order to function in fields outside of string theory reflects its changing nature and the uncertain future of the field. Does string theory lose its identity in the low-energy applications that holography provides? Does holography still belong under string theory's umbrella, or is it destined to form new subcultures with each of its fields of application? I find that the answers to these questions are dynamic, interconnected, and highly dependent on string theory's relationship with its field of application. In some cases, holography can maintain the goals and values it inherited from string theory. In others, it instead adopts the goals and values of the field in which it is applied. These examples highlight a growing need for the STS community to expand its treatment of string theory regarding its relationship with empiricism and role as a theory of quantum gravity.1.
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31
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Collard L, Pisano F, Zheng D, Balena A, Kashif MF, Pisanello M, D'Orazio A, de la Prida LM, Ciracì C, Grande M, De Vittorio M, Pisanello F. Holographic Manipulation of Nanostructured Fiber Optics Enables Spatially-Resolved, Reconfigurable Optical Control of Plasmonic Local Field Enhancement and SERS. Small 2022; 18:e2200975. [PMID: 35508706 DOI: 10.1002/smll.202200975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/25/2022] [Indexed: 06/14/2023]
Abstract
Integration of plasmonic structures on step-index optical fibers is attracting interest for both applications and fundamental studies. However, the possibility to dynamically control the coupling between the guided light fields and the plasmonic resonances is hindered by the turbidity of light propagation in multimode fibers (MMFs). This pivotal point strongly limits the range of studies that can benefit from nanostructured fiber optics. Fortunately, harnessing the interaction between plasmonic modes on the fiber tip and the full set of guided modes can bring this technology to a next generation progress. Here, the intrinsic wealth of information of guided modes is exploited to spatiotemporally control the plasmonic resonances of the coupled system. This concept is shown by employing dynamic phase modulation to structure both the response of plasmonic MMFs on the plasmonic facet and their response in the corresponding Fourier plane, achieving spatial selective field enhancement and direct control of the probe's work point in the dispersion diagram. Such a conceptual leap would transform the biomedical applications of holographic endoscopic imaging by integrating new sensing and manipulation capabilities.
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Affiliation(s)
- Liam Collard
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
| | - Filippo Pisano
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
| | - Di Zheng
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
| | - Antonio Balena
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
| | - Muhammad Fayyaz Kashif
- Dipartimento di Ingegneria Elettrica e dell'Informazione, Politecnico di Bari, Bari, 70125, Italy
| | - Marco Pisanello
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
| | - Antonella D'Orazio
- Dipartimento di Ingegneria Elettrica e dell'Informazione, Politecnico di Bari, Bari, 70125, Italy
| | | | - Cristian Ciracì
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
| | - Marco Grande
- Dipartimento di Ingegneria Elettrica e dell'Informazione, Politecnico di Bari, Bari, 70125, Italy
| | - Massimo De Vittorio
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
- Dipartimento di Ingegneria Dell'Innovazione, Università del Salento, Lecce, 73100, Italy
| | - Ferruccio Pisanello
- Center for Biomolecular Nanotechnologies, Istituto Italiano di Tecnologia, Arnesano LE, 73010, Italy
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32
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Dou J, Ma C, Wang K, Di J, Zhang J, Zhao J. Light-field focusing and modulation through scattering media based on dual-polarization-encoded digital optical phase conjugation. Opt Lett 2022; 47:2738-2741. [PMID: 35648918 DOI: 10.1364/ol.461029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Digital optical phase conjugation (DOPC) can be applied for light-field focusing and imaging through or within scattering media. Traditional DOPC only recovers the phase but loses the polarization information of the original incident beam. In this Letter, we propose a dual-polarization-encoded DOPC to recover the full information (both phase and polarization) of the incident beam. The phase distributions of two orthogonal polarization components of the speckle field coming from a multimode fiber are first measured by using digital holography. Then, the phase distributions are separately modulated on two beams and their conjugations are superposed to recover the incident beam through the fiber. By changing the phase difference or amplitude ratio between the two conjugate beams, light fields with complex polarization distribution can also be generated. This method will broaden the application scope of DOPC in imaging through scattering media.
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33
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Ferrer-Altabás S, Picazo-Bueno JÁ, Granero-Montagud L, Micó V. Shadowfocimetry: adapting the holographic principle to a manual focimeter for visualization/marking of permanent engravings in progressive addition lenses. Opt Lett 2022; 47:2298-2301. [PMID: 35486785 DOI: 10.1364/ol.454962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Focimeters, especially manual versions, are the most used ophthalmic devices for dioptric power measurement in optometric clinical care. In the particular case of progressive addition lenses (PALs), they are used to determine far/near vision correction powers, but the user/clinician needs to know at which part of the PAL the measurement must be taken. For this reason, PALs have permanent engravings acting as reference marks to define the far/near vision areas for every PAL design. However, for several reasons these engravings are often difficult to localize and identify, making an accurate dioptric power determination difficult. In this Letter, we present an adaptation of the Gabor holographic principle to a manual focimeter and describe the methodology for the correct localization, visualization, and marking process of the reference engravings in PALs. Experimental results considering different types of PALs are included and the main limitations of the technique are also discussed.
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Sala S, Zhang Y, De La Rosa N, Dreier T, Kahnt M, Langer M, Dahlin LB, Bech M, Villanueva-Perez P, Kalbfleisch S. Dose-efficient multimodal microscopy of human tissue at a hard X-ray nanoprobe beamline. J Synchrotron Radiat 2022; 29:807-815. [PMID: 35511013 PMCID: PMC9070709 DOI: 10.1107/s1600577522001874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 02/17/2022] [Indexed: 06/14/2023]
Abstract
X-ray fluorescence microscopy performed at nanofocusing synchrotron beamlines produces quantitative elemental distribution maps at unprecedented resolution (down to a few tens of nanometres), at the expense of relatively long measuring times and high absorbed doses. In this work, a method was implemented in which fast low-dose in-line holography was used to produce quantitative electron density maps at the mesoscale prior to nanoscale X-ray fluorescence acquisition. These maps ensure more efficient fluorescence scans and the reduction of the total absorbed dose, often relevant for radiation-sensitive (e.g. biological) samples. This multimodal microscopy approach was demonstrated on human sural nerve tissue. The two imaging modes provide complementary information at a comparable resolution, ultimately limited by the focal spot size. The experimental setup presented allows the user to swap between them in a flexible and reproducible fashion, as well as to easily adapt the scanning parameters during an experiment to fine-tune resolution and field of view.
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Affiliation(s)
- Simone Sala
- MAX IV Laboratory, Lund University, 22100 Lund, Sweden
| | - Yuhe Zhang
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Nathaly De La Rosa
- Department of Medical Radiation Physics, Clinical Sciences Lund, Lund University, 22185 Lund, Sweden
| | - Till Dreier
- Department of Medical Radiation Physics, Clinical Sciences Lund, Lund University, 22185 Lund, Sweden
- Excillum AB, 16440 Kista, Sweden
| | - Maik Kahnt
- MAX IV Laboratory, Lund University, 22100 Lund, Sweden
| | - Max Langer
- Univ Lyon, INSA-Lyon, Université Claude Bernard Lyon 1, UJM-Saint Etienne, CNRS, Inserm, CREATIS UMR 5220, U1206, 69621 Villeurbanne, France
| | - Lars B. Dahlin
- Department of Translational Medicine – Hand Surgery, Lund University, Malmö, Sweden
- Department of Hand Surgery, Skåne University Hospital, Malmö, Sweden
| | - Martin Bech
- Department of Medical Radiation Physics, Clinical Sciences Lund, Lund University, 22185 Lund, Sweden
| | - Pablo Villanueva-Perez
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
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Kabir MA, Kharel A, Malla S, Kreis ZJ, Nath P, Wolfe JN, Hassan M, Kaur D, Sari-Sarraf H, Tiwari AK, Ray A. Automated detection of apoptotic versus nonapoptotic cell death using label-free computational microscopy. J Biophotonics 2022; 15:e202100310. [PMID: 34936215 DOI: 10.1002/jbio.202100310] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/09/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Identification of cell death mechanisms, particularly distinguishing between apoptotic versus nonapoptotic pathways, is of paramount importance for a wide range of applications related to cell signaling, interaction with pathogens, therapeutic processes, drug discovery, drug resistance, and even pathogenesis of diseases like cancers and neurogenerative disease among others. Here, we present a novel high-throughput method of identifying apoptotic versus necrotic versus other nonapoptotic cell death processes, based on lensless digital holography. This method relies on identification of the temporal changes in the morphological features of mammalian cells, which are unique to each cell death processes. Different cell death processes were induced by known cytotoxic agents. A deep learning-based approach was used to automatically classify the cell death mechanism (apoptotic vs necrotic vs nonapoptotic) with more than 93% accuracy. This label free approach can provide a low cost (<$250) alternative to some of the currently available high content imaging-based screening tools.
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Affiliation(s)
- Md Alamgir Kabir
- Department of Physics and Astronomy, University of Toledo, Toledo, OH, USA
| | - Ashish Kharel
- Department of Electrical and Computer Science, University of Toledo, Toledo, OH, USA
| | - Saloni Malla
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH, USA
| | | | - Peuli Nath
- Department of Physics and Astronomy, University of Toledo, Toledo, OH, USA
| | - Jared Neil Wolfe
- Department of Mechanical Engineering, University of Toledo, Toledo, OH, USA
| | - Marwa Hassan
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH, USA
| | - Devinder Kaur
- Department of Electrical and Computer Science, University of Toledo, Toledo, OH, USA
| | - Hamed Sari-Sarraf
- Department of Electrical & Computer Engineering, Texas Tech University, Lubbock, TX, USA
| | - Amit K Tiwari
- Department of Pharmacology and Experimental Therapeutics, College of Pharmacy and Pharmaceutical Sciences, University of Toledo, Toledo, OH, USA
- Department of Cancer Biology, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Aniruddha Ray
- Department of Physics and Astronomy, University of Toledo, Toledo, OH, USA
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Valentino M, Bĕhal J, Bianco V, Itri S, Mossotti R, Fontana GD, Battistini T, Stella E, Miccio L, Ferraro P. Intelligent polarization-sensitive holographic flow-cytometer: Towards specificity in classifying natural and microplastic fibers. Sci Total Environ 2022; 815:152708. [PMID: 34990679 DOI: 10.1016/j.scitotenv.2021.152708] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/17/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Micron size fiber fragments (MFFs), both natural and synthetic, are ubiquitous in our life, especially in textile clothes, being necessary in modern society. In the Earth's aquatic ecosystem, microplastic fibers account for ~91% of microplastic pollution, thus deserving notable attention as one of the most alarming ecological problems. Accurate automatic identification of MFFs discharges in specific upstream locations is highly demanded. Computational microscopy based on Digital Holography (DH) and machine learning has been demonstrated to identify microplastics in respect to microalgae. However, DH is a non-specific optical tool, meaning it cannot distinguish different types of plastic materials. On the other hand, materials-specific assessments are pivotal to establish the environmental impact of different textile products and production processes. Spectroscopic assays can be employed to identify microplastics for their intrinsic specificity, although they are generally low-throughput and require large concentrations to enable effective measurements. Conversely, MFFs are usually finely dispersed within a water sample. Here we rely on a polarization-resolved holographic flow cytometer in a Lab-on-Chip (LoC) platform for analysing MFFs. We demonstrate that two important objectives can be achieved, i.e. adding material specificity through polarization analysis while operating in a microfluidic stream modality. Through a machine learning numerical pipeline, natural fibers (i.e. cotton and wool) can be clearly separated from synthetic microfilaments, namely PA6, PA6.6, PET, PP. Moreover, the proposed system can accurately distinguish between different polymers under investigation, thus fulfilling the specificity goal. We extract and select different features from amplitude, phase and birefringence maps retrieved from the digital holograms. These are shown to typify MFFs without the need for sample pre-treatment or large concentrations. The simplicity of the DH method for identifying MFFs in LoC-based flow cytometers could promote the use of polarization resolved field-portable analysis systems suitable for studying pollution caused by washing processes of synthetic textiles.
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Affiliation(s)
- Marika Valentino
- Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (ISASI-CNR), via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy; Università degli Studi di Napoli Federico II, Dip. di Ingegneria Elettrica e delle Tecnologie dell'Informazione, via Claudio 21, 80125 Napoli, Italy
| | - Jaromír Bĕhal
- Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (ISASI-CNR), via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Vittorio Bianco
- Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (ISASI-CNR), via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy.
| | - Simona Itri
- Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (ISASI-CNR), via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy; Department of Mathematics and Physics, University of Campania "L.Vanvitelli", 81100 Caserta, Italy
| | - Raffaella Mossotti
- STIIMA-CNR Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing National Research Council of Italy, C.so G., Pella 16, Biella 13900, Italy
| | - Giulia Dalla Fontana
- STIIMA-CNR Institute of Intelligent Industrial Technologies and Systems for Advanced Manufacturing National Research Council of Italy, C.so G., Pella 16, Biella 13900, Italy
| | | | - Ettore Stella
- Istituto di Sistemi e Tecnologie Industriali Intelligenti per il Manifatturiero Avanzato (STIIMA-CNR), via Amendola 122 D/O, 70126 Bari, BA, Italy
| | - Lisa Miccio
- Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (ISASI-CNR), via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
| | - Pietro Ferraro
- Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (ISASI-CNR), via Campi Flegrei 34, 80078 Pozzuoli, Napoli, Italy
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Puyo L, Spahr H, Pfäffle C, Hüttmann G, Hillmann D. Retinal blood flow imaging with combined full-field swept-source optical coherence tomography and laser Doppler holography. Opt Lett 2022; 47:1198-1201. [PMID: 35230326 DOI: 10.1364/ol.449739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/14/2022] [Indexed: 06/14/2023]
Abstract
Full-field swept-source optical coherence tomography (FF-SS-OCT) and laser Doppler holography (LDH) are two holographic imaging techniques presenting unique capabilities for ophthalmology. We report on interlaced FF-SS-OCT and LDH imaging with a single instrument. Effectively, retinal blood flow and pulsation could be quasi-simultaneously monitored. This instrument holds potential for a wide scope of ophthalmic applications.
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Teich M, Schuster T, Leister N, Zozgornik S, Fugal J, Wagner T, Zschau E, Häussler R, Stolle H. Real-time, large-depth holographic 3D head-up display: selected aspects. Appl Opt 2022; 61:B156-B163. [PMID: 35201136 DOI: 10.1364/ao.442924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/03/2021] [Indexed: 06/14/2023]
Abstract
Today's state-of-the-art automotive head-up displays (HUD) possess single- or double layer focal planes that limit the observers' eye focus to these planes when crucial information is shown. Other visual 3D cues such as motion parallax also suffer from this limitation. The resulting viewing experience contradicts the natural way of viewing during driving or interaction, when alerts and hints should appear at the correct projection depth where real objects of interest are located. Here we present a real-time holographic HUD with continuous depth that supports the intuitive and natural way of viewing and interacting with virtual environments outside and inside the car. We demonstrate full-color, 3D real-time encoding within a field-of-view of 5∘×3∘.
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Zhang S, Zhang Z, Liu J. Adjustable and continuous eyebox replication for a holographic Maxwellian near-eye display. Opt Lett 2022; 47:445-448. [PMID: 35103647 DOI: 10.1364/ol.438855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 11/11/2021] [Indexed: 06/14/2023]
Abstract
A Maxwellian display presents always-focused images to the viewer, alleviating the vergence-accommodation conflict (VAC) in near-eye displays (NEDs). Recently, many methods of improving its limited eyebox have been proposed, among which viewpoint replication has attracted a lot of attention. However, double-image, blind-area, and image-shift effects always happen in typical eyebox-replication Maxwellian NEDs when the eye moves between the replicated viewpoints, which prevents these NEDs from being applied more widely. In this Letter, we propose a method for designing a holographic Maxwellian NED system with continuous eyebox replication as well as flexible interval adjustment by changing the projection angles of the reconstructed images. Thus, holograms corresponding to the positions of different viewpoints are calculated to match the interval of the replicated viewpoints with the human pupil diameter, making it possible to eliminate or alleviate double-image or blind-area effects. Also, seamless viewpoint conversion in the eyebox is achieved by aligning the images of adjacent viewpoints on the retina via hologram pre-processing independently. These effects are verified successfully in optical experiments and have the potential to be applied in near-eye three-dimensional displays without VAC.
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Li T, Tao Y, Dong J, Zhang Q, Wang S, Shi Y. Enlarged range of measurement method with strong noise resistance for dual-wavelength digital holography: erratum. Opt Lett 2022; 47:669. [PMID: 35103703 DOI: 10.1364/ol.453351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Indexed: 06/14/2023]
Abstract
We present an erratum to our Letter [Opt. Lett.46, 4694 (2021)10.1364/OL.432135]. This erratum corrects an unintended error in the labels of Figs. 5(h)-5(j). The corrections have no influence on the results and conclusions of the original Letter.
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Yang L, Ma Z, Liu S, Jiao Q, Zhang J, Zhang W, Pei J, Li H, Li Y, Zou Y, Xu Y, Tan X. Study of the Off-Axis Fresnel Zone Plate of a Microscopic Tomographic Aberration. Sensors (Basel) 2022; 22:s22031113. [PMID: 35161858 PMCID: PMC8838344 DOI: 10.3390/s22031113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/26/2022] [Accepted: 01/26/2022] [Indexed: 12/04/2022]
Abstract
A tomographic microscopy system can achieve instantaneous three-dimensional imaging, and this type of microscopy system has been widely used in the study of biological samples; however, existing chromatographic microscopes based on off-axis Fresnel zone plates have degraded image quality due to geometric aberrations such as spherical aberration, coma aberration, and image scattering. This issue hinders the further development of chromatographic microscopy systems. In this paper, we propose a method for the design of an off-axis Fresnel zone plate with the elimination of aberrations based on double exposure point holographic surface interference. The aberration coefficient model of the optical path function was used to solve the optimal recording parameters, and the principle of the aberration elimination tomography microscopic optical path was verified. The simulation and experimental verification were carried out utilizing a Seidel coefficient, average gradient, and signal-to-noise ratio. First, the aberration coefficient model of the optical path function was used to solve the optimal recording parameters. Then, the laminar mi-coroscopy optical system was constructed for the verification of the principle. Finally, the simulation calculation results and the experimental results were verified by comparing the Seidel coefficient, average gradient, and signal-to-noise ratio of the microscopic optical system before and after the aberration elimination. The results show that for the diffractive light at the orders 0 and ±1, the spherical aberration W040 decreases by 62–70%, the coma aberration W131 decreases by 96–98%, the image dispersion W222 decreases by 71–82%, and the field curvature W220 decreases by 96–96%, the average gradient increases by 2.8%, and the signal-to-noise ratio increases by 18%.
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Affiliation(s)
- Lin Yang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhenyu Ma
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
| | - Siqi Liu
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qingbin Jiao
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
| | - Jiahang Zhang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Zhang
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Pei
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hui Li
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuhang Li
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yubo Zou
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuxing Xu
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xin Tan
- Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Beijing 100049, China; (L.Y.); (Z.M.); (S.L.); (Q.J.); (J.Z.); (W.Z.); (J.P.); (H.L.); (Y.L.); (Y.Z.); (Y.X.)
- Center of Materials Science and Optoelectronics Engineering, Chinese Academy of Sciences, Beijing 100049, China
- Correspondence:
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He J, Wu J, Zhu Y, Chen Y, Yuan M, Zeng L, Ji X. Multitarget Transcranial Ultrasound Therapy in Small Animals Based on Phase-Only Acoustic Holographic Lens. IEEE Trans Ultrason Ferroelectr Freq Control 2022; 69:662-671. [PMID: 34847028 DOI: 10.1109/tuffc.2021.3131752] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Transcranial ultrasound therapy has become a noninvasive method for treating neurological and psychiatric disorders, and studies have further demonstrated that multitarget transcranial ultrasound therapy is a better solution. At present, multitarget transcranial ultrasound therapy in small animals can only be achieved by the multitransducer or phased array. However, multiple transducers may cause spatial interference, and the phased array system is complicated, expensive, and especially unsuitable for small animals. This study is the first to design and fabricate a miniature acoustic holography lens for multitarget transcranial ultrasound therapy in rats. The acoustic holographic lens, working at a frequency of 1.0 MHz, with a size of 10.08 mm ×10.08 mm and a pixel resolution of 0.72 mm, was designed, optimized, and fabricated. The dual-focus transcranial ultrasound generated based on the lens was measured; the full-width at half-maximum (FWHM) of the focal spots in the y -direction was 2.15 and 2.27 mm and in the z -direction was 2.3 and 2.36 mm. The focal length was 5.4 mm, and the distance between the two focuses was 5.6 mm, close to the desired values of 5.4 and 6.0 mm. Finally, the multiple-target blood-brain barrier opening in rats' bilateral secondary visual cortex (mediolateral area, V2ML) was demonstrated using the transcranial ultrasound therapy system based on the lens. These results demonstrate the good performance of the multitarget transcranial ultrasound therapy system for small animals, including high spatial resolution, small size, and low cost.
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Choi MH, Shin KS, Jang J, Han W, Park JH. Waveguide-type Maxwellian near-eye display using a pin-mirror holographic optical element array. Opt Lett 2022; 47:405-408. [PMID: 35030617 DOI: 10.1364/ol.443004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 12/01/2021] [Indexed: 06/14/2023]
Abstract
We propose a novel, to the best of our knowledge, waveguide-type optical see-through Maxwellian near-eye display for augmented reality. A pin-mirror holographic optical element (HOE) array enables the Maxwellian view and eye-box replication. Virtual images with deep depth of field are presented by each pin-mirror HOE, alleviating the discrepancy between vergence and accommodation distance. The compact form factor is achieved by the thin waveguide and HOE couplers.
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Picazo-Bueno JA, Trindade K, Sanz M, Micó V. Design, Calibration, and Application of a Robust, Cost-Effective, and High-Resolution Lensless Holographic Microscope. Sensors (Basel) 2022; 22:553. [PMID: 35062512 PMCID: PMC8780948 DOI: 10.3390/s22020553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/03/2022] [Accepted: 01/07/2022] [Indexed: 01/04/2023]
Abstract
Lensless holographic microscope (LHM) is an emerging very promising technology that provides high-quality imaging and analysis of biological samples without utilizing any lens for imaging. Due to its small size and reduced price, LHM can be a very useful tool for the point-of-care diagnosis of diseases, sperm assessment, or microfluidics, among others, not only employed in advanced laboratories but also in poor and/or remote areas. Recently, several LHMs have been reported in the literature. However, complete characterization of their optical parameters remains not much presented yet. Hence, we present a complete analysis of the performance of a compact, reduced cost, and high-resolution LHM. In particular, optical parameters such as lateral and axial resolutions, lateral magnification, and field of view are discussed into detail, comparing the experimental results with the expected theoretical values for different layout configurations. We use high-resolution amplitude and phase test targets and several microbeads to characterize the proposed microscope. This characterization is used to define a balanced and matched setup showing a good compromise between the involved parameters. Finally, such a microscope is utilized for visualization of static, as well as dynamic biosamples.
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Affiliation(s)
- Jose Angel Picazo-Bueno
- Optics and Optometry and Vision Science, University of Valencia, 46100 Burjassot, Spain; (K.T.); (M.S.); (V.M.)
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Joushomme A, Garenne A, Dufossée M, Renom R, Ruigrok HJ, Chappe YL, Canovi A, Patrignoni L, Hurtier A, Poulletier de Gannes F, Lagroye I, Lévêque P, Lewis N, Priault M, Arnaud-Cormos D, Percherancier Y. Label-Free Study of the Global Cell Behavior during Exposure to Environmental Radiofrequency Fields in the Presence or Absence of Pro-Apoptotic or Pro-Autophagic Treatments. Int J Mol Sci 2022; 23:ijms23020658. [PMID: 35054844 PMCID: PMC8776001 DOI: 10.3390/ijms23020658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 02/01/2023] Open
Abstract
It remains controversial whether exposure to environmental radiofrequency signals (RF) impacts cell status or response to cellular stress such as apoptosis or autophagy. We used two label-free techniques, cellular impedancemetry and Digital Holographic Microscopy (DHM), to assess the overall cellular response during RF exposure alone, or during co-exposure to RF and chemical treatments known to induce either apoptosis or autophagy. Two human cell lines (SH-SY5Y and HCT116) and two cultures of primary rat cortex cells (astrocytes and co-culture of neurons and glial cells) were exposed to RF using an 1800 MHz carrier wave modulated with various environmental signals (GSM: Global System for Mobile Communications, 2G signal), UMTS (Universal Mobile Telecommunications System, 3G signal), LTE (Long-Term Evolution, 4G signal, and Wi-Fi) or unmodulated RF (continuous wave, CW). The specific absorption rates (S.A.R.) used were 1.5 and 6 W/kg during DHM experiments and ranged from 5 to 24 W/kg during the recording of cellular impedance. Cells were continuously exposed for three to five consecutive days while the temporal phenotypic signature of cells behavior was recorded at constant temperature. Statistical analysis of the results does not indicate that RF-EMF exposure impacted the global behavior of healthy, apoptotic, or autophagic cells, even at S.A.R. levels higher than the guidelines, provided that the temperature was kept constant.
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Affiliation(s)
- Alexandre Joushomme
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - André Garenne
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Mélody Dufossée
- Univ. Bordeaux, CNRS, IBGC/UMR 5095, F-33000 Bordeaux, France; (M.D.); (M.P.)
| | - Rémy Renom
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Hermanus Johannes Ruigrok
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Yann Loick Chappe
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Anne Canovi
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Lorenza Patrignoni
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Annabelle Hurtier
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Florence Poulletier de Gannes
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Isabelle Lagroye
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
- Paris Sciences et Lettres Research University, F-75006 Paris, France
| | - Philippe Lévêque
- Univ. Limoges, CNRS, XLIM/UMR 7252, F-87000 Limoges, France; (P.L.); (D.A.-C.)
| | - Noëlle Lewis
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
| | - Muriel Priault
- Univ. Bordeaux, CNRS, IBGC/UMR 5095, F-33000 Bordeaux, France; (M.D.); (M.P.)
| | - Delia Arnaud-Cormos
- Univ. Limoges, CNRS, XLIM/UMR 7252, F-87000 Limoges, France; (P.L.); (D.A.-C.)
- Institut Universitaire de France (IUF), F-75005 Paris, France
| | - Yann Percherancier
- Univ. Bordeaux, CNRS, IMS/UMR 5218, F-33400 Talence, France; (A.J.); (A.G.); (R.R.); (H.J.R.); (Y.L.C.); (A.C.); (L.P.); (A.H.); (F.P.d.G.); (I.L.); (N.L.)
- Correspondence: ; Tel.: +33-5-40-00-27-24
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Kalbfleisch S, Zhang Y, Kahnt M, Buakor K, Langer M, Dreier T, Dierks H, Stjärneblad P, Larsson E, Gordeyeva K, Chayanun L, Söderberg D, Wallentin J, Bech M, Villanueva-Perez P. X-ray in-line holography and holotomography at the NanoMAX beamline. J Synchrotron Radiat 2022; 29:224-229. [PMID: 34985439 PMCID: PMC8733976 DOI: 10.1107/s1600577521012200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 11/17/2021] [Indexed: 05/29/2023]
Abstract
Coherent X-ray imaging techniques, such as in-line holography, exploit the high brilliance provided by diffraction-limited storage rings to perform imaging sensitive to the electron density through contrast due to the phase shift, rather than conventional attenuation contrast. Thus, coherent X-ray imaging techniques enable high-sensitivity and low-dose imaging, especially for low-atomic-number (Z) chemical elements and materials with similar attenuation contrast. Here, the first implementation of in-line holography at the NanoMAX beamline is presented, which benefits from the exceptional focusing capabilities and the high brilliance provided by MAX IV, the first operational diffraction-limited storage ring up to approximately 300 eV. It is demonstrated that in-line holography at NanoMAX can provide 2D diffraction-limited images, where the achievable resolution is only limited by the 70 nm focal spot at 13 keV X-ray energy. Also, the 3D capabilities of this instrument are demonstrated by performing holotomography on a chalk sample at a mesoscale resolution of around 155 nm. It is foreseen that in-line holography will broaden the spectra of capabilities of MAX IV by providing fast 2D and 3D electron density images from mesoscale down to nanoscale resolution.
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Affiliation(s)
| | - Yuhe Zhang
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Maik Kahnt
- MAX IV Laboratory, Lund University, 22100 Lund, Sweden
| | - Khachiwan Buakor
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Max Langer
- Univ. Grenoble Alpes, CNRS, UMR 5525, VetAgro Sup, Grenoble INP, TIMC, 38000 Grenoble, France
| | - Till Dreier
- Department for Medical Radiation Physics, Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden
- Excillum AB, Jan Stenbecks Torg 17, 16440 Kista, Sweden
| | - Hanna Dierks
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Philip Stjärneblad
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Emanuel Larsson
- Division of Solid Mechanics and LUNARC, Department of Construction Sciences, Lund University, 22100 Lund, Sweden
| | - Korneliya Gordeyeva
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Lert Chayanun
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Daniel Söderberg
- Wallenberg Wood Science Center, Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, 10044 Stockholm, Sweden
| | - Jesper Wallentin
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
| | - Martin Bech
- Department for Medical Radiation Physics, Clinical Sciences Lund, Lund University, 221 85 Lund, Sweden
| | - Pablo Villanueva-Perez
- Division of Synchrotron Radiation Research and NanoLund, Department of Physics, Lund University, 22100 Lund, Sweden
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Castaneda R, Trujillo C, Doblas A. Video-Rate Quantitative Phase Imaging Using a Digital Holographic Microscope and a Generative Adversarial Network. Sensors (Basel) 2021; 21:s21238021. [PMID: 34884025 PMCID: PMC8659916 DOI: 10.3390/s21238021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Revised: 11/20/2021] [Accepted: 11/28/2021] [Indexed: 01/22/2023]
Abstract
The conventional reconstruction method of off-axis digital holographic microscopy (DHM) relies on computational processing that involves spatial filtering of the sample spectrum and tilt compensation between the interfering waves to accurately reconstruct the phase of a biological sample. Additional computational procedures such as numerical focusing may be needed to reconstruct free-of-distortion quantitative phase images based on the optical configuration of the DHM system. Regardless of the implementation, any DHM computational processing leads to long processing times, hampering the use of DHM for video-rate renderings of dynamic biological processes. In this study, we report on a conditional generative adversarial network (cGAN) for robust and fast quantitative phase imaging in DHM. The reconstructed phase images provided by the GAN model present stable background levels, enhancing the visualization of the specimens for different experimental conditions in which the conventional approach often fails. The proposed learning-based method was trained and validated using human red blood cells recorded on an off-axis Mach–Zehnder DHM system. After proper training, the proposed GAN yields a computationally efficient method, reconstructing DHM images seven times faster than conventional computational approaches.
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Affiliation(s)
- Raul Castaneda
- Department of Electrical and Computer Engineering, The University of Memphis, Memphis, TN 38152, USA;
| | - Carlos Trujillo
- Applied Optics Group, Physical Sciences Department, Universidad EAFIT, Medellin 050037, Colombia;
| | - Ana Doblas
- Department of Electrical and Computer Engineering, The University of Memphis, Memphis, TN 38152, USA;
- Correspondence:
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Olivieri M, Pezzoli M, Antonacci F, Sarti A. A Physics-Informed Neural Network Approach for Nearfield Acoustic Holography. Sensors (Basel) 2021; 21:s21237834. [PMID: 34883838 PMCID: PMC8659974 DOI: 10.3390/s21237834] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 11/18/2021] [Accepted: 11/21/2021] [Indexed: 11/25/2022]
Abstract
In this manuscript, we describe a novel methodology for nearfield acoustic holography (NAH). The proposed technique is based on convolutional neural networks, with autoencoder architecture, to reconstruct the pressure and velocity fields on the surface of the vibrating structure using the sampled pressure soundfield on the holographic plane as input. The loss function used for training the network is based on a combination of two components. The first component is the error in the reconstructed velocity. The second component is the error between the sound pressure on the holographic plane and its estimate obtained from forward propagating the pressure and velocity fields on the structure through the Kirchhoff–Helmholtz integral; thus, bringing some knowledge about the physics of the process under study into the estimation algorithm. Due to the explicit presence of the Kirchhoff–Helmholtz integral in the loss function, we name the proposed technique the Kirchhoff–Helmholtz-based convolutional neural network, KHCNN. KHCNN has been tested on two large datasets of rectangular plates and violin shells. Results show that it attains very good accuracy, with a gain in the NMSE of the estimated velocity field that can top 10 dB, with respect to state-of-the-art techniques. The same trend is observed if the normalized cross correlation is used as a metric.
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Abstract
We report the Muscope, a miniature lensless holographic microscope suitable for on-chip integration. The prototype of the Muscope measured approximately only 7 mm × 4 mm × 4 mm, and was capable of offering a sub-micron half-pitch resolution. We have used, for the first time, a microLED display as the light source in a microscope. The individual pixels of a microLED display chip are used as programmable, microscopic and intense LEDs which can be spatially moved in a two-dimensional plane with a 5 μm pitch. This unique feature set of the display was used to implement computational super-resolution and wide-field imaging without any extra hardware, unlike many other lensless microscopes. We also report a new method to evaluate the magnification in our setting. The Muscope surpasses the existing lensless microscopes in compactness, scalability for production, automated operation and system integration. It provides exciting opportunities for a new class of devices with in-built optical imaging and monitoring and/or sensing capabilities.
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Affiliation(s)
- Ekta Prajapati
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, 502285, India.
| | - Saurav Kumar
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, 502285, India.
| | - Shishir Kumar
- Department of Electrical Engineering, Indian Institute of Technology, Hyderabad, 502285, India.
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50
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Chakravarthula P, Zhang Z, Tursun O, Didyk P, Sun Q, Fuchs H. Gaze-Contingent Retinal Speckle Suppression for Perceptually-Matched Foveated Holographic Displays. IEEE Trans Vis Comput Graph 2021; 27:4194-4203. [PMID: 34449368 DOI: 10.1109/tvcg.2021.3106433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Computer-generated holographic (CGH) displays show great potential and are emerging as the next-generation displays for augmented and virtual reality, and automotive heads-up displays. One of the critical problems harming the wide adoption of such displays is the presence of speckle noise inherent to holography, that compromises its quality by introducing perceptible artifacts. Although speckle noise suppression has been an active research area, the previous works have not considered the perceptual characteristics of the Human Visual System (HVS), which receives the final displayed imagery. However, it is well studied that the sensitivity of the HVS is not uniform across the visual field, which has led to gaze-contingent rendering schemes for maximizing the perceptual quality in various computer-generated imagery. Inspired by this, we present the first method that reduces the "perceived speckle noise" by integrating foveal and peripheral vision characteristics of the HVS, along with the retinal point spread function, into the phase hologram computation. Specifically, we introduce the anatomical and statistical retinal receptor distribution into our computational hologram optimization, which places a higher priority on reducing the perceived foveal speckle noise while being adaptable to any individual's optical aberration on the retina. Our method demonstrates superior perceptual quality on our emulated holographic display. Our evaluations with objective measurements and subjective studies demonstrate a significant reduction of the human perceived noise.
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