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Carbon Disulfide: A colorless, flammable, poisonous liquid, Cs2. It is used as a solvent, and is a counterirritant and has local anesthetic properties but is not used as such. It is highly toxic with pronounced CNS, hematologic, and dermatologic effects.

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification

1St. Jude Proteomics Facility, St. Jude Children's Research Hospital, 2Departments of Structural Biology and Developmental Neurobiology, St. Jude Children's Research Hospital, 3Heilongjiang University of Chinese Medicine

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JoVE 56474


 JoVE In-Press

The Use of a β-lactamase - Based Conductimetric Biosensor Assay to Detect Biomolecular Interactions

1Life Science Department, University of Liège, 2Institute of Condensed Matter and Nanoscience, Catholic University of Louvain, 3Laboratory of Clinical Microbiology, Catholic University of Louvain, 4Biotechnology Department, CER Group

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JoVE 55414


 JoVE In-Press

Screening for Functional Non-coding Genetic Variants Using Electrophoretic Mobility Shift Assay (EMSA) and DNA-affinity Precipitation Assay (DAPA)

1Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital, 2Medical Scientist Training Program, University of Cincinnati, 3Immunology Graduate Program, University of Cincinnati, 4Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital

JoVE 54093


 Biology

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Optimized Protocol for the Extraction of Proteins from the Human Mitral Valve

1Centro Cardiologico Monzino IRCCS, 2Cardiovascular Tissue Bank of Milan, Centro Cardiologico Monzino IRCCS, 3Department of Clinical Sciences and Community Health, Cardiovascular Section, University of Milan, 4Department of Cardiovascular Disease, Development and Innovation Cardiac Surgery Unit, Centro Cardiologico Monzino IRCCS

JoVE 55762


 Biochemistry

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Nucleophilic Substitution

JoVE 10465

Source: Vy M. Dong and Daniel Kim, Department of Chemistry, University of California, Irvine, CA

Nucleophilic substitution reactions are among the most fundamental topics covered in organic chemistry. A nucleophilic substitution reaction is one where a nucleophile (electron-rich Lewis base) replaces a leaving group from a carbon atom.

SN1 (S = Substitution, N = Nucleophilic, 1 = first-order kinetics) SN2 (S = Substitution, N = Nucleophilic, 2 = second-order kinetics) This video will help to visualize the subtle differences between an SN1 and SN2 reaction and what factors help to speed up each type of nucleophilic substitution reaction. The first section will focus on reactions that will help to better understand and learn about nucleophilic substitution reactions. The second section will focus on a real-world example of a substitution reaction.


 Organic Chemistry II

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Rapid Scan Electron Paramagnetic Resonance Opens New Avenues for Imaging Physiologically Important Parameters In Vivo

1Department of Chemistry and Biochemistry, University of Denver, 2Magnetic Imaging Group, Applied Physics Division, Physical Measurements Laboratory, National Institute of Standards and Technology, 3Department of Radiology, Geisel School of Medicine, Dartmouth University, 4Department of Biochemistry, West Virginia University, 5Department of Electrical and Computer Engineering, University of Denver, 6Department of Engineering, University of Denver

JoVE 54068


 Bioengineering

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Characterization, Quantification and Compound-specific Isotopic Analysis of Pyrogenic Carbon Using Benzene Polycarboxylic Acids (BPCA)

1Department of Geography, University of Zurich, 2Department of Earth and Ocean Sciences, University of South Carolina, 3Department of Earth Sciences, ETH Zurich, 4Laboratory of Ion Beam Physics, ETH Zurich, 5Department of Geological Sciences, Stockholm University

JoVE 53922


 Chemistry

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Functionalization and Dispersion of Carbon Nanomaterials Using an Environmentally Friendly Ultrasonicated Ozonolysis Process

1Aerospace Division, Defence Science and Technology Group, 2Maritime Division, Defence Science and Technology Group, 3Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, 4Department of Mechanical Engineering, University of Delaware, 5Department of Materials Science and Engineering, University of Delaware, 6Center for Composite Materials, University of Delaware

JoVE 55614


 Environment

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Dispersion of Nanomaterials in Aqueous Media: Towards Protocol Optimization

1School of Geography, Earth and Environmental Sciences, University of Birmingham, 2Analytical Science, National Physical Laboratory, 3INAC-LCIB, Université Grenoble Alpes, 4CEA, INAC-SyMMES, 5NIMBE, CEA, CNRS, Université Paris-Saclay, 6Chemical, Medical and Environmental Science, National Physical Laboratory, 7Division BAM 6.1 'Surface Analysis and Interfacial Chemistry', BAM Federal Institute for Materials Research and Testing, 8Fraunhofer IKTS, Fraunhofer Institute for Ceramic Technologies and Systems

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JoVE 56074


 JoVE In-Press

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