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Acrylic Resins:
 JoVE Neuroscience

Acrylic Resin Molding Based Head Fixation Technique in Rodents

1Department of Anatomy, School of Medicine and Brain Science and Engineering Institute, Kyungpook National University, 2Department of Pharmacology, School of Dentistry and Brain Science and Engineering Institute, Kyungpook National University, 3Department of Pharmacology, School of Medicine and Brain Science and Engineering Institute, Kyungpook National University


JoVE 53064

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 JoVE Bioengineering

Electrotaxis Studies of Lung Cancer Cells using a Multichannel Dual-electric-field Microfluidic Chip

1Research Center for Applied Sciences, Academia Sinica, 2Institute of Biophotonics, National Yang-Ming University, 3Biophotonics & Molecular Imaging Research Center (BMIRC), National Yang-Ming University, 4Department of Mechanical and Mechatronic Engineering, National Taiwan Ocean University, 5Ph.D. Program in Microbial Genomics, National Chung Hsing University


JoVE 53340

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 Science Education: Essentials of Analytical Chemistry

Ion-Exchange Chromatography

JoVE Science Education

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

Ion-exchange chromatography is a type of chromatography that separates analytes based on charge. A column is used that is filled with a charged stationary phase on a solid support, called an ion-exchange resin. Strong cation-exchange chromatography preferentially separates out cations by using a negatively-charged resin while strong anion-exchange chromatography preferentially selects out anions by using a positively-charged resin. This type of chromatography is popular for sample preparation, for example in the cleanup of proteins or nucleic acid samples. Ion-exchange chromatography is a two-step process. In the first step, the sample is loaded onto the column in a loading buffer. The binding of the charged sample to the column resin is based on ionic interactions of the resin to attract the sample of the opposite charge. Thus, charged samples of opposite polarity to the resin are strongly bound. Other molecules that are not charged or are of the opposite charge are not bound and are washed through the column. The second step is to elute the analyte that is bound to the resin. This is accomplished with a salt gradient, where the amount of salt in the buffer is slowly increased. Fractions are collected at the end of the column as

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 JoVE Behavior

Contextual and Cued Fear Conditioning Test Using a Video Analyzing System in Mice

1Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University, 2Japan Science and Technology Agency, Core Research for Evolutionary Science and Technology (CREST), 3Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences, National Institutes of Natural Sciences


JoVE 50871

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 JoVE Bioengineering

Environmentally-controlled Microtensile Testing of Mechanically-adaptive Polymer Nanocomposites for ex vivo Characterization

1Advanced Platform Technology Center, Rehabilitation Research and Development, Louis Stokes Cleveland Department of Veterans Affairs Medical Center, 2Department of Biomedical Engineering, Case Western Reserve University, 3Department of Electrical Engineering and Computer Science, Case Western Reserve University


JoVE 50078

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 JoVE Bioengineering

Lipid Bilayer Vesicle Generation Using Microfluidic Jetting

1Department of Mechanical Engineering, University of Michigan, 2Department of Biomedical Engineering, University of Michigan, 3Department of Biomedical Engineering, Institute for Cellular and Molecular Biology, The University of Texas at Austin, 4Department of Bioengineering, University of California, Berkeley, 5Physical Biosciences Division, Lawrence Berkeley National Laboratory


JoVE 51510

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 JoVE Biology

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers

1Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, 2School of Biomedical Engineering and Sciences, Virginia Polytechnic Institute and State University, 3Department of Biology, University of Maryland, 4College of Engineering, University of Georgia, 5Department of Engineering Sciences and Mechanics, Virginia Polytechnic Institute and State University


JoVE 53362

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