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Electrophoresis, Paper: Electrophoresis in which paper is used as the diffusion medium. This technique is confined almost entirely to separations of small molecules such as amino acids, peptides, and nucleotides, and relatively high voltages are nearly always used.

Modified Terminal Restriction Fragment Analysis for Quantifying Telomere Length Using In-gel Hybridization

1Departments of Pathology and Infectious Diseases and Microbiology, University of Pittsburgh, 2University of Pittsburgh Cancer Institute, 3Department of Environmental and Occupational Health, University of Pittsburgh, 4Departments of Psychiatry, Psychology, Behavioral & Community Health Sciences, University of Pittsburgh

JoVE 56001


 Cancer Research

Consensus Brain-derived Protein, Extraction Protocol for the Study of Human and Murine Brain Proteome Using Both 2D-DIGE and Mini 2DE Immunoblotting

1Team Alzheimer & Tauopathies, Jean-Pierre Aubert Research Centre, Inserm UMR 837, 2EA 4308-Department of Reproductive Biology-Spermiology-CECOS, CHRU-Lille, 3EA2686-Laboratorie d'Immunologie, Faculté de Médecine - Pôle Recherche, 4Department of Neurology, CHRU-Lille

JoVE 51339


 Neuroscience

A Fast Silver Staining Protocol Enabling Simple and Efficient Detection of SSR Markers Using a Non-denaturing Polyacrylamide Gel

1College of Life Sciences, Guangzhou University, 2Hard Winter Wheat Genetics Research Unit, United States Department of Agriculture - Agricultural Research Service, 3The UWA Institute of Agriculture, University of Western Australia

Video Coming Soon

JoVE 57192


 JoVE In-Press

Enhanced Reduced Representation Bisulfite Sequencing for Assessment of DNA Methylation at Base Pair Resolution

1Department of Medicine, Weill Cornell Medical College, 2Institute for Computational Biomedicine, Weill Cornell Medical College, 3Department of Physiology and Biophysics, Weill Cornell Medical College, 4Department of Pathology, University of Michigan

JoVE 52246


 Biology

Testing For Genetically Modified Foods

JoVE 10044

Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University

Genetic modification of foods has been a controversial issue due to debated concerns over health and environmental safety. This experiment demonstrates technical understanding of how food DNA is genetically identified, allowing for educated decision making about the safety and potential dangers of using genetically modified organisms (GMOs) in food supplies. Polymerase Chain Reaction (PCR) is used to amplify food DNA to test for the presence of genetically modified DNA in food products. Presence of specific DNA bands is detected by using gel electrophoresis to pull extracted food DNA through a 3% agarose gel, a concentration dense enough to separate the bands of DNA containing the genetically modified DNA. Several controls are used in the electrophoresis procedure to ensure DNA is successfully extracted from test foods (plant primer), and to provide known examples of both genetically modified DNA (purchased genetically modified DNA) and non-genetically modified DNA (purchased certified non-GMO food control).


 Environmental Science

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

Isolation and Respiratory Measurements of Mitochondria from Arabidopsis thaliana

1ARC Centre of Excellence in Plant Energy Biology, Department of Animal, Plant and Soil Science, School of Life Science, La Trobe University, 2School of Biological Sciences, Flinders University, 3ARC Centre of Excellence in Plant Energy Biology, University of Western Australia

Video Coming Soon

JoVE 56627


 JoVE In-Press

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