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  JoVE Bioengineering

  
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JoVE Science Education

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JoVE Bioengineering
JoVE Bioengineering merges both physical and life sciences to understand and predict biological processes. Applying physical science tools to life science questions allow for the discovery of better technologies to measure, diagnose, and clinically treat disease.
 JoVE Bioengineering

ECM Protein Nanofibers and Nanostructures Engineered Using Surface-initiated Assembly

1Department of Biomedical Engineering, Carnegie Mellon University, 2Department of Materials Science and Engineering, Carnegie Mellon University


JoVE 51176

A method to obtain nanofibers and complex nanostructures from single or multiple extracellular matrix proteins is described. This method uses protein-surface interactions to create free-standing protein-based materials with tunable composition and architecture for use in a variety of tissue engineering and biotechnology applications.

 JoVE Bioengineering

Sample Drift Correction Following 4D Confocal Time-lapse Imaging

1School of Biological Sciences, Monash University, 2Janelia Farm Research Campus, Howard Hughes Medical Institute


JoVE 51086

Time-lapse microscopy allows the visualization of developmental processes. Growth or drift of samples during image acquisition reduces the ability to accurately follow and measure cell movements during development. We describe the use of open source image processing software to correct for three dimensional sample drift over time.

 JoVE Bioengineering

Shock Wave Application to Cell Cultures

1Department of Cardiac Surgery, Innsbruck Medical University, 2Clinic of Anesthesiology, Intensive Care Medicine and Pain Therapy, Goethe-University Hospital


JoVE 51076

Shock waves nowadays are well known for their regenerative effects. Therefore in vitro experiments are of increasing interest. We therefore developed a model for in vitro shock wave trials (IVSWT) that enables us to mimic in vivo conditions thereby avoiding distracting physical effects.

 JoVE Bioengineering

Quantitative Optical Microscopy: Measurement of Cellular Biophysical Features with a Standard Optical Microscope

1Department of Biomedical Engineering, Oregon Health & Science University, School of Medicine, 2Department of Dermatology, Oregon Health & Science University, School of Medicine, 3Department of Cell & Developmental Biology, Division of Hematology & Medical Oncology, Knight Cancer Institute, Oregon Health & Science University, School of Medicine


JoVE 50988

We describe the use of a standard optical microscope to perform quantitative measurements of cellular mass, volume, and density through a combination of bright field and differential interference contrast imagery.

 JoVE Bioengineering

Isolation of Cellular Lipid Droplets: Two Purification Techniques Starting from Yeast Cells and Human Placentas

1Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, 2Department of Chemical and Biomolecular Engineering, University of Tennessee


JoVE 50981

Two techniques for isolating cellular lipid droplets from 1) yeast cells and 2) human placentas are presented. The centerpiece of both procedures is density gradient centrifugation, where the resulting floating layer containing the droplets can be readily visualized by eye, extracted, and quantified by Western Blot analysis for purity.

 JoVE Bioengineering

Isolation of Cellular Lipid Droplets: Two Purification Techniques Starting from Yeast Cells and Human Placentas

1Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, 2Department of Chemical and Biomolecular Engineering, University of Tennessee


JoVE 50981

Two techniques for isolating cellular lipid droplets from 1) yeast cells and 2) human placentas are presented. The centerpiece of both procedures is density gradient centrifugation, where the resulting floating layer containing the droplets can be readily visualized by eye, extracted, and quantified by Western Blot analysis for purity.

 JoVE Bioengineering

Isolation of Cellular Lipid Droplets: Two Purification Techniques Starting from Yeast Cells and Human Placentas

1Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, 2Department of Chemical and Biomolecular Engineering, University of Tennessee


JoVE 50981

Two techniques for isolating cellular lipid droplets from 1) yeast cells and 2) human placentas are presented. The centerpiece of both procedures is density gradient centrifugation, where the resulting floating layer containing the droplets can be readily visualized by eye, extracted, and quantified by Western Blot analysis for purity.

 JoVE Bioengineering

Electric Cell-substrate Impedance Sensing for the Quantification of Endothelial Proliferation, Barrier Function, and Motility

1Department of Pulmonary Diseases, Institute for Cardiovascular Research, VU University Medical Center, 2Department of Physiology, Institute for Cardiovascular Research, VU University Medical Center


JoVE 51300

This protocol reviews Electric Cell-substrate Impedance Sensing, a method to record and analyze the impedance spectrum of adherent cells for the quantification of cell attachment, proliferation, motility, and cellular responses to pharmacological and toxic stimuli. Detection of endothelial permeability and assessment of cell-cell and cell-substrate contacts are emphasized.

 JoVE Bioengineering

Preparation of Light-responsive Membranes by a Combined Surface Grafting and Postmodification Process

1Laboratory for Protection and Physiology, Empa, Swiss Federal Laboratories for Materials Science and Technology, 2Laboratory of Advanced Fibers, Empa, Swiss Federal Laboratories for Materials Science and Technology, 3Division of Neonatology, University Hospital Zurich


JoVE 51680

A plasma-induced polymerization procedure is described for the surface-initiated polymerization on polymer membranes. Further postmodification of the grafted polymer with photochromic substances is presented with a protocol of conducting permeability measurements of light-responsive membranes.

 JoVE Bioengineering

Tissue Engineering of Tumor Stromal Microenvironment with Application to Cancer Cell Invasion

1Division of Cancer Research, Ninewells Hospital and Medical School, University of Dundee, 2Institute of Medical Biology, A*Star, Singapore


JoVE 51321

Tissue engineered fibroblast-derived native matrix is an emerging tool to generate a stromal substrate which supports epithelial cell proliferation and differentiation. Here a protocol applying this methodology to assess the impact of different stromal cell types on tumor cell biology is presented.

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