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Tetrazolium Salts: Quaternary salts derived from tetrazoles. They are used in tests to distinguish between reducing sugars and simple aldehydes, for detection of dehydrogenase in tissues, cells, and bacteria, for determination of corticosteroids, and in color photography. (From Mall's Dictionary of Chemistry, 5th ed, p455)

Using RNA-sequencing to Detect Novel Splice Variants Related to Drug Resistance in In Vitro Cancer Models

1Department of Pediatric Oncology/Hematology, VU University Medical Center, 2Department of Hematology, VU University Medical Center, 3Department of Medical Oncology, VU University Medical Center, 4Department of Clinical Genetics, VU University Medical Center, 5Division of General and Transplant Surgery, Azienda Ospedaliera Universitaria Pisana, Universita’ di Pisa, 6Amsterdam Immunology and Rheumatology Center, VU University Medical Center, 7Princess Máxima Center for Pediatric Oncology, 8Cancer Pharmacology Lab, AIRC Start-Up Unit, University of Pisa, 9Institute of Nanoscience and Nanotechnology, CNR-Nano

JoVE 54714


 Cancer Research

The Ex Vivo Culture and Pattern Recognition Receptor Stimulation of Mouse Intestinal Organoids

1Department of Biomedical Sciences and Pathobiology, Virginia Maryland College of Veterinary Medicine, Virginia Tech, 2Department of Biomedical Engineering, Cornell University, 3School of Electrical and Computer Engineering, Cornell University, 4Department of Biomedical Engineering, Duke University

JoVE 54033


 Immunology and Infection

Methods for Analyzing the Impacts of Natural Uranium on in vitro Osteoclastogenesis

1UMR E-4320 TIRO-MATOs CEA/DRF/BIAM, Université Nice Sophia-Antipolis, 2UMR 7272 Institut de Chimie de Nice CNRS, Université Nice Sophia-Antipolis, 3CEA, Direction de la Recherche Fondamentale (DRF), Biosciences and Biotechnologies Institute (BIAM)

Video Coming Soon

JoVE 56499


 JoVE In-Press

Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect

1Oral and Maxillofacial Surgery, Columbia University, 2Endodontics, Columbia University, 3Mechanical Engineering, Kyung Hee University, South Korea, 4Orthodontics, The Ohio State University, 5Pathology, Weill Cornell Medical College

JoVE 52947


 Bioengineering

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Vasodilation of Isolated Vessels and the Isolation of the Extracellular Matrix of Tight-skin Mice

1Department of Anesthesiology, Medical College of Wisconsin, 2Clement J. Zablocki Veterans Affairs Medical Center, 3Department of Surgery, Division of Pediatric Surgery, Children's Research Institute, 4Department of Orthopedic Surgery, Medical College of Wisconsin, 5Deptarment of Anesthesiology, Clement J Zblocki Veteran Affairs Medical Center, 6Department of Medicine, Division of Cardiology, Medical College of Wisconsin

JoVE 55036


 Immunology and Infection

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Lignin Down-regulation of Zea mays via dsRNAi and Klason Lignin Analysis

1The School of Plant Sciences, University of Arizona, 2Department of Chemical Engineering and Materials Science, DOE Great Lakes Bioenergy Research Center, Michigan State University, 3The Institute for Sustainable and Renewable Resources, The Institute for Advanced Learning and Research, 4Department of Plant, Soil and Microbial Sciences, Michigan State University

JoVE 51340


 Bioengineering

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Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells

1Department of Medicine, Duke University, 2Department of Bioengineering, Rice University, 3Department of Molecular Genetics and Microbiology, Duke University, 4Solid Tumor Program and the Duke Prostate Center, Duke University Medical Center, 5Duke University Medical Center

JoVE 55520


 Developmental Biology

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Using Synthetic Biology to Engineer Living Cells That Interface with Programmable Materials

1Department of Mechanical Engineering, Carnegie Mellon University, 2Engineering Science and Mechanics Program, Virginia Polytechnic Institute and State University, 3Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University, 4Department of Bioengineering, University of Pittsburgh

JoVE 55300


 Bioengineering

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Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

1Department of Chemical Engineering, Rowan University, 2Department of Biological Sciences, Rowan University, 3Department of Biomedical Engineering, Drexel University

JoVE 53704


 Bioengineering

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An In Vitro Organ Culture Model of the Murine Intervertebral Disc

1Department of Biomedical Engineering, Washington University in St. Louis, 2Department of Biology, Washington University in St. Louis, 3Department of Orthopaedic Surgery, Washington University in St. Louis, 4Department of Materials Science and Mechanical Engineering, Washington University in St. Louis

JoVE 55437


 Bioengineering

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Conducting Reactions Below Room Temperature

JoVE 10224

Source: Laboratory of Dr. Dana Lashley - College of William and Mary

Demonstration by: Matt Smith

When new bonds are formed in the course of a chemical reaction, it requires that the involved species (atoms or molecules) come in very close proximity and collide into one another. The collisions between these species are more frequent and effective the higher the speed at which these molecules are moving. A widely used rule of thumb, which has its roots in the Arrhenius equation1, states that raising the temperature by 10 K will approximately double the rate of a reaction, and raising the temperature by 20 K will quadruple the rate: (1) Equation (1) is often found in its logarithmic form: (2) where k is the rate of the chemical reaction, A is the frequency factor (relating to frequency of molecular collisions), Ea is the activation energy required for the reaction, R is the ideal gas constant, and T is the temperature at which the r


 Organic Chemistry

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Primary Outcome Assessment in a Pig Model of Acute Myocardial Infarction

1Department of Experimental Cardiology, University Medical Center Utrecht, 2Department of Cardiology, University Medical Center Utrecht, 3Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, 4Interuniversity Cardiology Institutes of the Netherlands (ICIN)

JoVE 54021


 Medicine

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