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Dimethyl Sulfoxide: A highly polar organic liquid, that is used widely as a chemical solvent. Because of its ability to penetrate biological membranes, it is used as a vehicle for topical application of pharmaceuticals. It is also used to protect tissue during Cryopreservation. Dimethyl sulfoxide shows a range of pharmacological activity including analgesia and anti-inflammation.

Cell Division - Prep Student

JoVE 10626

Preparation of Onion Root Tips and Solutions
For the cell cycle experiment using root tips, first, leave an onion suspended over a beaker of water to grow roots for several days.
Then, clean the onion roots of any dirt or debris.
Next, in a 1.5 mL tube, dissolve 10 mcg of nocodazole per 1 mL of dimethyl sulfoxide solution, making 1 tube…

 Lab Bio

Ozonolysis of Alkenes

JoVE 10339

Source: Vy M. Dong and Zhiwei Chen, Department of Chemistry, University of California, Irvine, CA


This experiment will demonstrate an example of an ozonolysis reaction to synthesize vanillin from isoeugenol (Figure 1). Ozonolysis of alkenes, an oxidation reaction between ozone and an alkene, is a common method to prepare…

 Organic Chemistry II

Internal Standards

JoVE 10225

Source: Laboratory of Dr. B. Jill Venton - University of Virginia



The goal of many chemical analyses is a quantitative analysis, where the amount of a substance in a sample is determined. In order to accurately calculate the concentration of an unknown from a sample, careful sample preparation is key. Every time a sample is…

 Analytical Chemistry

Capture and Identification of RNA-binding Proteins by Using Click Chemistry-assisted RNA-interactome Capture (CARIC) Strategy

1College of Chemistry and Molecular Engineering, Peking University, 2Beijing National Laboratory for Molecular Sciences, Peking University, 3Peking-Tsinghua Center for Life Sciences, Peking University, 4Synthetic and Functional Biomolecules Center, Peking University, 5Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Peking University

JoVE 58580

 Biochemistry

Identification of Intracellular Signaling Events Induced in Viable Cells by Interaction with Neighboring Cells Undergoing Apoptotic Cell Death

1Section of Nephrology, Department of Medicine, University of Illinois at Chicago, 2Section of Nephrology, Department of Medicine, Jesse Brown Veterans Affairs Medical Center, 3Department of Biology, Kutztown University of Pennsylvania, 4Division of Rheumatology, Department of Medicine, Research Institute of the McGill University Health Centre, 5Department of Microbiology & Immunology, University of Illinois at Chicago

JoVE 54980

 Biology

Inducing and Characterizing Vesicular Steatosis in Differentiated HepaRG Cells

1Department of Molecular Medicine, Sapienza University, 2Department of Internal Medicine - DMISM, Sapienza University, 3Center for Life Nano Science@Sapienza, Istituto Italiano di Tecnologia, 4Pasteur Institute Italy-Fondazione Cenci Bolognetti, 5INSERM U1052-Cancer Research Center of Lyon, 6Department of Hepatology, Croix Rousse Hospital, Hospices Civils de Lyon

JoVE 59843

 Medicine

Processing of Bronchoalveolar Lavage Fluid and Matched Blood for Alveolar Macrophage and CD4+ T-cell Immunophenotyping and HIV Reservoir Assessment

1Research Institute McGill University Health Centre, 2Department of Biological Sciences, Université de Québec à Montréal, 3Department of Microbiology & Immunology, McGill University, 4Department of Medicine, Division of Infectious Diseases, McGill University, 5Centre de Recherche du Centre Hospitalier de l'Université de Montréal, 6Département de microbiologie, infectiologie et immunologie, Université de Montréal

JoVE 59427

 Immunology and Infection

Antimicrobial Peptides Produced by Selective Pressure Incorporation of Non-canonical Amino Acids

1Department of Biocatalysis, Institute of Chemistry, Technische Universität Berlin, 2Department of Bioenergetics, Institute of Chemistry, Technische Universität Berlin, 3Molecular Genetics Group, Groningen Biomolecular Sciences and Biotechnology Institute, Department of Molecular Genetics, University of Groningen

JoVE 57551

 Bioengineering

A Familial Hypercholesterolemia Human Liver Chimeric Mouse Model Using Induced Pluripotent Stem Cell-derived Hepatocytes

1Department of Medicine, University of Hong Kong-Shenzhen Hospital, 2The Cardiology Division, Department of Medicine, Li Ka Shing Faculty of Medicine, University of Hong Kong, 3School of Biomedical Sciences, Institute of Vascular Medicine, Li Ka Shing Institute of Health Sciences, Chinese University of Hong Kong, 4Key Laboratory of Regenerative Biology of the Chinese Academy of Sciences, Joint School of Life Sciences, Guangzhou Institutes of Biomedicine and Health and Guangzhou Medical University, 5Laboratory of RNA, Chromatin, and Human Disease, CAS Key Laboratory of Regenerative Biology and Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, 6Research Centre of Heart, Brain, Hormone, and Healthy Ageing, Li Ka Shing Faculty of Medicine, University of Hong Kong, 7Hong Kong-Guangdong Stem Cell and Regenerative Medicine Research Centre, University of Hong Kong and Guangzhou Institutes of Biomedicine and Health

JoVE 57556

 Developmental Biology

Imaging Approaches to Assessments of Toxicological Oxidative Stress Using Genetically-encoded Fluorogenic Sensors

1Department of Environmental Sciences and Engineering, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 2Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, 3Oak Ridge Institute for Science and Education

JoVE 56945

 Cancer Research

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

Measurement of T Cell Alloreactivity Using Imaging Flow Cytometry

1Division of Respirology, Departments of Medicine and Immunology, Toronto Lung Transplant Program, Multiorgan Transplant Program, Toronto General Research Institute, University of Toronto and University Health Network, 2Latner Thoracic Surgery Laboratories, Toronto General Research Institute, University Health Network, 3National Institutes of Health Research, Oxford Biomedical Research Centre, Translational Immunology Laboratory, NDORMS, Kennedy Institute of Rheumatology, University of Oxford, 4Transplantation Research Immunology Group, Nuffield Department of Surgical Sciences, John Radcliffe Hospital, University of Oxford

JoVE 55283

 Immunology and Infection
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