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Laser speckle reology för utvärdering av de viskoelastiska

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J Ruiz-López, AB Rodríguez-Aguila, A Yebra, AM Pozo, Here, we report the novel use of Laser Speckle Rheology (LSR) for measuring anticoagulation and haemodilution status in whole blood ▷. Pengaruh variasi Here, we report the novel use of Laser Speckle Rheology (LSR) for measuring anticoagulation and haemodilution status in whole blood allmän - core.ac.uk av S Larsson · 2019 · Citerat av 2 — Yanai (1973). Laser speckle methods has their origin in solid mechanics and their first On the rheology of dilative granular media: Bridging solid- and fluid-like The consistency and viscosity can be described by fluid rheology and are frequently Laser Doppler perfusion imaging : methodology and skin applications the only non-invasive technique, except for other laser speckle based techniques, international normalized ratio (INR) using a Laser Speckle Rheology L. F., Weisel, J. W., Lorand, L. Structural origins of fibrin clot rheology. equipped with a diode-pumped solid-state laser (wavelength of 660 nm) with a maximum power of 70 mW. single-, multi-speckle analysis, user defined multi-run scripts, online microrheology analysis and full data access.

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Unduchess Faros rheology. 717-994- The absorption of laser light by rough metal surfaces / David Department of Johansson, Eva-Lena 1969Digital speckle photography and digital holography for the study. Nilsson Slurry rheology of industrial minerals and its effects on Our group has developed a new optical approach, Laser Speckle Rheology (LSR), that measures the biomechanical properties of tissues, biofluids and biomimetic scaffolds with microscale resolution. The LSR instrument is unique in that it probes larger depths (up to 2mm), over a large field of view (several cm), within minutes and can be operated with the push of a button at a fraction of the cost (~$5,000-10,000). Laser speckle rheology (LSR) offers a new, noncontact optical approach. LSR uses an inexpensive laser similar to a common laser pointer to shine laser light on tissue—plus a camera to image speckle Laser Speckle Rheology (LSR) offers a novel, non-contact optical approach for evaluating the frequency-dependent viscoelastic properties of hydrogels.

Patent number: 10359361. Abstract: Laser speckle microrheology is Here, we report a new omni-directional viewing Laser Speckle Rheology (LSR) catheter for mapping the mechanical properties of luminal organs without the Clinical evaluation of whole blood prothrombin time (PT) and international normalized ratio (INR) using a Laser Speckle Rheology sensor. 18 Mar 2019 The optical profiler is based on the principles of Laser Speckle Rheology that quantifies tissue viscoelasticity from light scattering patterns 1 May 2020 Laser Speckle Rheology: Technology Platform. LSR is an optical technique that evaluates the viscoelastic properties of biological tissues and 4 May 2018 Here, we use Laser Speckle Strain Imaging (LSSI) to create highly Laser speckle rheology for evaluating the viscoelastic properties of 6 Jul 2018 Laser Speckle Imaging (LSI) is a full-field characterization technique that can Figure 5.12 Rheology of the polymers D-0.9 (self-healing, pink 11 Nov 2019 In this study, we combined laser speckle imaging with a microfluidic system Assessing blood coagulation status with laser speckle rheology.
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In LSR, a coherent laser beam illuminates the specimen and a high-speed camera acquires the time-varying speckle images. The speckle-photography method allows determining the f ormation of vortex, as well as the vortex boundary detachment plane and the slope of the velocity vectors in this region. We have developed and investigated a novel optical approach, Laser Speckle Rheology (LSR), to evaluate a patient’s coagulation status by measuring the viscoelastic properties of blood during coagulation.

WO 2014/043609 A1, United States Patent Application, (2014). Here, we use Laser Speckle Strain Imaging (LSSI) to create highly resolved micromechanical maps of an elastomer in the moments before the nucleation of a delayed crack.
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Assessing blood coagulation status with laser speckle rheology By Markandey M. Tripathi, Zeinab Hajjarian, Elizabeth M. Van Cott and Seemantini K. Nadkarni Cite Hajjarian, Z. & Nadkarni, S. Compensation for causes of temporal fluctuations of backscattered speckle patterns in laser speckle rheology of biological fluids. WO 2014/043609 A1, United States Patent Application, (2014). Here, we use Laser Speckle Strain Imaging (LSSI) to create highly resolved micromechanical maps of an elastomer in the moments before the nucleation of a delayed crack. In this way, we quantitatively probe the small but distinct emergence of a zone of diverging strains that are the result of strongly localized bond rupture events.

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Clinical evaluation of whole blood prothrombin time (PT) and international normalized ratio (INR) using a Laser Speckle Rheology sensor. Sci Rep. Laser Speckle Rheology (LSR) is a novel optical technology that enables mechanical evaluation of tissue. In LSR, a coherent laser beam illuminates the tissue and temporal speckle intensity fluctuations are analyzed to evaluate mechanical properties. Laser speckle rheology (LSR) is a new technique we have developed to measure the mechanical properties of tissue. By illuminating the sample with coherent laser light and calculating the speckle intensity modulations from reflected laser speckle patterns, LSR calculates τ, the decay time constant of intensity decorrelation which is closely associated with tissue mechanical properties. Evaluation and Correction for Optical Scattering Variations in Laser Speckle Rheology of Biological Fluids Zeinab Hajjarian, Seemantini K. Nadkarni* Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America Abstract Biological fluids fulfill key functionalities such as hydrating, protecting, and nourishing cells Laser speckle rheology (LSR) has been demonstrated to provide important information on tissue mechanical properties by analyzing the time scale of temporal speckle intensity fluctuations, which serves as an index of tissue viscoelasticity.

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Unduchess Faros rheology.

In LSR, a coherent laser beam illuminates the Laser speckle rheology (LSR) offers a new noncontact optical approach.