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Calcium Sulfate: A calcium salt that is used for a variety of purposes including: building materials, as a desiccant, in dentistry as an impression material, cast, or die, and in medicine for immobilizing casts and as a tablet excipient. It exists in various forms and states of hydration. Plaster of Paris is a mixture of powdered and heat-treated gypsum.
 JoVE Bioengineering

Synthesis of Thermogelling Poly(N-isopropylacrylamide)-graft-chondroitin Sulfate Composites with Alginate Microparticles for Tissue Engineering

1Department of Chemical Engineering, Rowan University, 2Department of Biological Sciences, Rowan University, 3Department of Biomedical Engineering, Drexel University


JoVE 53704

 JoVE Environment

Removal of Trace Elements by Cupric Oxide Nanoparticles from Uranium In Situ Recovery Bleed Water and Its Effect on Cell Viability

1Division of Physical Therapy, Department of Orthopedics & Rehabilitation, University of New Mexico, 2Department of Ecosystem Science and Management, University of Wyoming, 3School of Pharmacy, University of Wyoming, 4Department of Environmental and Radiological Health Sciences, Colorado State University, 5Center for Environmental Medicine, Colorado State University, 6College of Pharmacy, California Northstate University


JoVE 52715

 JoVE Neuroscience

Anatomically Inspired Three-dimensional Micro-tissue Engineered Neural Networks for Nervous System Reconstruction, Modulation, and Modeling

1Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, 2Center for Brain Injury & Repair, Department of Neurosurgery, Perelman School of Medicine, University of Pennsylvania, 3Center for Neurotrauma, Neurodegeneration & Restoration, Michael J. Crescenz Veterans Affairs Medical Center, 4School of Biomedical Engineering, Drexel University


JoVE 55609

 Science Education: Essentials of Environmental Science

Soil Nutrient Analysis: Nitrogen, Phosphorus, and Potassium

JoVE Science Education

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

In this experiment, three soil macronutrients are chemically extracted, combined with color-based reagents, then analyzed using color to determine the nutrient concentration present in the soil sample.

Nitrogen, phosphorus, and potassium are the main components of soil fertilizer. These methods isolate each nutrient from the soil into a solution that can be analyzed using turbidity and color to determine the concentration of nutrients present in the soil sample. Knowing present concentration informs environmental scientists of a nutrient deficiency or surplus in soils used to support plant production, and also provides general insight into basic biogeochemical cycles of an ecosystem.

 JoVE In-Press

Semiautomated Longitudinal Microcomputed Tomography-based QuantitativeStructural Analysis of a Nude Rat Osteoporosis-related Vertebral Fracture Model

1Skeletal Biotech Laboratory, Hebrew University-Hadassah Faculty of Dental Medicine, 2Department of Surgery, Cedars-Sinai Medical Center, 3Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, 4Biomedical Imaging Research Institute, Cedars-Sinai Medical Center, 5Department of Orthopedics, Cedars-Sinai Medical Center

Video Coming Soon

JoVE 55928

 JoVE Biology

Characterization of Calcification Events Using Live Optical and Electron Microscopy Techniques in a Marine Tubeworm

1Department of Biological Sciences, Clemson University, 2Department of Marine Biodiversity Research (BioDive), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), 3Advanced Material Research Laboratory (AMRL), Clemson University, 4Swire Institute of Marine Sciences and School of Biological Sciences, The University of Hong Kong


JoVE 55164

 Science Education: Essentials of General Chemistry

Determining the Solubility Rules of Ionic Compounds

JoVE Science Education

Source: Laboratory of Dr. Neal Abrams — SUNY College of Environmental Science and Forestry

An ionic compound's solubility can be determined via qualitative analysis. Qualitative analysis is a branch of analytical chemistry that uses chemical properties and reactions to identify the cation or anion present in a chemical compound. While the chemical reactions rely on known solubility rules, those same rules can be determined by identifying the products that form. Qualitative analysis is not typically done in modern industrial chemistry labs, but it can be used easily in the field without the need of sophisticated instrumentation. Qualitative analysis also focuses on understanding ionic and net ionic reactions as well as organizing data into a flow chart to explain observations and make definitive conclusions. Many cations have similar chemical properties, as do the anion counterparts. Correct identification requires careful separation and analysis to systematically identify the ions present in a solution. It is important to understand acid/base properties, ionic equilibria, redox reactions, and pH properties to identify ions successfully. While there is a qualitative test for virtually every elemental and polyatomic ion, the identification process typically begi

 JoVE Biology

Manual Isolation of Adipose-derived Stem Cells from Human Lipoaspirates

1Cytori Therapeutics Inc, 2Division of Cardiac Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, 3Division of Plastic and Reconstructive Surgery, Department of Surgery, David Geffen School of Medicine at UCLA, 4Department of Orthopedic Surgery, David Geffen School of Medicine at UCLA, 5Regenerative Bioengineering and Repair Laboratory, David Geffen School of Medicine at UCLA


JoVE 50585

 JoVE Medicine

A Step by Step Protocol for Subretinal Surgery in Rabbits

1Department of Ophthalmology, University of Bonn, 2Department of Ophthalmology, National University of Singapore, 3Geuder AG, 4Department of Ophthalmology, University of Münster, 5Section on Epithelial and Retinal Physiology and Disease, National Eye Institute/National Institutes of Health, 6Surgical Retina Department, Singapore National Eye Centre


JoVE 53927

 JoVE Bioengineering

Polyelectrolyte Complex for Heparin Binding Domain Osteogenic Growth Factor Delivery

1Department of Orthopaedic Surgery, Yong Loo Lin School of Medicine, National University of Singapore, 2Centre for Research in Medical Devices (CÚRAM), National University of Ireland Galway, 3Department of Bioengineering, Faculty of Engineering, National University of Singapore, 4Tissue Engineering Program, National University of Singapore, 5Department of Orthopaedic Surgery and the Orthopaedic Hospital Research Center, University of California, Los Angeles


JoVE 54202

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