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Cell Line: Established cell cultures that have the potential to propagate indefinitely.
 JoVE Cancer Research

Study of Viral Vectors in a Three-dimensional Liver Model Repopulated with the Human Hepatocellular Carcinoma Cell Line HepG2

1Department of Applied Biochemistry, Institute of Biotechnology, Berlin University of Technology, 2Department of Medical Biotechnology, Institute of Biotechnology, Berlin University of Technology, 3Department of Bioprocess Engineering, Institute of Biotechnology, Berlin University of Technology


JoVE 54633

 JoVE Neuroscience

High-resolution In Vivo Manual Segmentation Protocol for Human Hippocampal Subfields Using 3T Magnetic Resonance Imaging

1Institute of Biomaterials and Biomedical Engineering, University of Toronto, 2Computational Brain Anatomy Laboratory, Douglas Institute, McGill University, 3McGill Centre for Studies in Aging, McGill University, 4MRI Unit, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, 5Department of Psychiatry, University of Toronto, 6School of Psychology, University of Wollongong, 7Neuroscience Research Australia, 8Department of Medicine, University of Toronto, 9Kimel Family Translational Imaging Genetics Research Laboratory, Research Imaging Centre, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health


JoVE 51861

 Science Education: Essentials of Analytical Chemistry

Method of Standard Addition

JoVE Science Education

Source: Laboratory of Dr. Paul Bower - Purdue University

The method of standard additions is a quantitative analysis method, which is often used when the sample of interest has multiple components that result in matrix effects, where the additional components may either reduce or enhance the analyte absorbance signal. That results in significant errors in the analysis results. Standard additions are commonly used to eliminate matrix effects from a measurement, since it is assumed that the matrix affects all of the solutions equally. Additionally, it is used to correct for the chemical phase separations performed in the extraction process. The method is performed by reading the experimental (in this case fluorescent) intensity of the unknown solution and then by measuring the intensity of the unknown with varying amounts of known standard added. The data are plotted as fluorescence intensity vs. the amount of the standard added (the unknown itself, with no standard added, is plotted ON the y-axis). The least squares line intersects the x-axis at the negative of the concentration of the unknown, as shown in Figure 1. Figure 1

 JoVE Cancer Research

Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma

1Department of Surgery and Translational Medicine (DCMT), University of Florence, 2Neurofarba Department, University of Florence, 3Department of Traumatology and General Orthopedics, Azienda Ospedaliera Universitaria Careggi


JoVE 53884

 JoVE Biology

Implementation of a Coherent Anti-Stokes Raman Scattering (CARS) System on a Ti:Sapphire and OPO Laser Based Standard Laser Scanning Microscope

1INSERM U1051, Institut des Neurosciences de Montpellier (INM), Université de Montpellier, 2Université de Nîmes, 3CNRS, IES, UMR 5214, 4Aix-Marseille Université, CNRS, École Centrale Marseille, Institut Fresnel, UMR 7249, 5Montpellier RIO Imaging (MRI)


JoVE 54262

 JoVE Bioengineering

Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol

1Bioenergy Research Unit, National Center for Agricultural Utilization Research, 2Mycotoxin Prevention and Applied Microbiology Research Unit, National Center for Agricultural Utilization Research, 3Chemical Engineering and Material Science, Great Lakes Bioenergy Center, Michigan State University


JoVE 54227

 JoVE Developmental Biology

Imaging Subcellular Structures in the Living Zebrafish Embryo

1Institute of Neuronal Cell Biology, Technische Universität München, 2Cell Biology, Department of Biology, Faculty of Science, Utrecht University, 3Faculty of Biology, Ludwig-Maximilians-Universität-München, 4Adolf-Butenandt-Institute, Biochemistry, Ludwig-Maximilians-Universität-München, 5German Center for Neurodegenerative Diseases, 6Laboratory of Brain Development and Repair, The Rockefeller University


JoVE 53456

 JoVE Bioengineering

Hollow Fiber Bioreactors for In Vivo-like Mammalian Tissue Culture

1Department of Chemical Engineering and Centre for Regenerative Medicine, University of Bath, 2MRC Centre for Drug Safety Science and Institute of Translational Medicine, University of Liverpool, 3Mechanical Engineering, University College London, 4Department of Applied Mathematics, Liverpool John Moores University


JoVE 53431

 JoVE Medicine

Method of Isolated Ex Vivo Lung Perfusion in a Rat Model: Lessons Learned from Developing a Rat EVLP Program

1Department of Biomedical Engineering, Ohio State University Wexner Medical Center, 2Davis Heart & Lung Research Institute, Ohio State University Wexner Medical Center, 3The Collaboration for Organ Perfusion, Protection, Engineering and Regeneration (COPPER) Laboratory, Ohio State University Wexner Medical Center, 4Division of Cardiac Surgery, Department of Surgery, Ohio State University Wexner Medical Center, 5Departments of Pediatrics and Internal Medicine, Ohio State University, 6Advanced Lung Disease Program, Lung and Heart-Lung Transplant Programs, Nationwide Children's Hospital, 7Division of Transplantation, Department of Surgery, Ohio State University Wexner Medical Center


JoVE 52309

 JoVE Cancer Research

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

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