Show Advanced Search

REFINE YOUR SEARCH:

Containing Text
- - -
+
Filter by author or institution
GO
Filter by publication date
From:
October, 2006
Until:
Today
Filter by journal section

Filter by science education

 
 
Potassium Chloride: A white crystal or crystalline powder used in Buffers; Fertilizers; and Explosives. It can be used to replenish Electrolytes and restore Water-electrolyte balance in treating Hypokalemia.

Ionic Bonds

JoVE 10665

When atoms gain or lose electrons to achieve a more stable electron configuration they form ions. Ionic bonds are electrostatic attractions between ions with opposite charges. Ionic compounds are rigid and brittle when solid and may dissociate into their constituent ions in water. Covalent compounds, by contrast, remain intact unless a chemical reaction breaks them.

Ionic bonds are reversible electrostatic interactions between ions with opposing charges. Elements that are the most reactive (i.e., have a higher tendency to undergo chemical reactions) include those that only have one valence electron, (e.g., potassium) and those that need one more valence electron (e.g., chlorine). Ions that lose electrons have a positive charge and are referred to as cations. Ions that gain electrons have a negative charge and are called anions. Cations and anions combine in ratios that result in a net charge of 0 for the compound they form. For example, the compound potassium chloride (KCl) contains one chloride ion for each potassium ion, because the charge of potassium is +1 and the charge of chloride is -1. The compound magnesium chloride (MgCl2) contains two chloride ions for each magnesium ion because magnesium’s charge is +2. The electrostatic forces holding ionic compounds together are strong when the compounds are in solid form. Since t

 Core: Biology

Electroplating of Thin Films

JoVE 10489

Source: Logan G. Kiefer, Andrew R. Falkowski, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT


Electroplating is a process that uses electric current to reduce dissolved metal cations so that they form a thin coating on an electrode. Other thin film deposition techniques…

 Materials Engineering

Standardized Measurement of Nasal Membrane Transepithelial Potential Difference (NPD)

1Department of Medicine and the Gregory Fleming James Cystic Fibrosis Center, University of Alabama at Birmingham, 2Department of Pulmonology and Tuberculosis, University Medical Center Utrecht, 3Center for Experimental Medicine, Queens University, Northern Ireland, 4Hadassah Hebrew University Medical Center, Jerusalem, 5Centro Fibrosi Cistica, Azienda Ospedaliera Universitaria Integrata, 6Service de Pneumologie et Allergologie Pédiatriques and Center de Ressources et de Compétence de la Mucoviscidose, Hôpital Necker Enfants Malades, 7INSERM U 1151, Institut Necker Enfants Malades

JoVE 57006

 Medicine

Measurement of Extracellular Ion Fluxes Using the Ion-selective Self-referencing Microelectrode Technique

1Department of Dermatology, Institute for Regenerative Cures, University of California, Davis, 2Departamento de Biologia, Centro de Biologia Molecular e Ambiental, Universidade do Minho, 3Department of Neurology and Center for Neuroscience, University of California, Davis Imaging of Dementia and Aging Laboratory, 4Department of Ophthalmology, Institute for Regenerative Cures, University of California, Davis

JoVE 52782

 Biology

Generation and On-Demand Initiation of Acute Ictal Activity in Rodent and Human Tissue

1Division of Fundamental Neurobiology, Krembil Research Institute, 2Institute of Medical Science, Faculty of Medicine, University of Toronto, 3Institute of Biomaterials and Biomedical Engineering, University of Toronto, 4Division of Neurosurgery, Department of Surgery, University of Toronto, 5Division of Neurology, Department of Medicine, University of Toronto, 6Department of Physiology, University of Toronto

JoVE 57952

 Neuroscience

Engineering 'Golden' Fluorescence by Selective Pressure Incorporation of Non-canonical Amino Acids and Protein Analysis by Mass Spectrometry and Fluorescence

1Institute of Chemistry L 1, Department of Biocatalysis, Technical University of Berlin, 2Institute of Chemistry PC 14, Department of Bioenergetics, Technical University of Berlin, 3Institute of Chemistry TC 7, Department of Physical Chemistry/Molecular Material Sciences, Technical University of Berlin

JoVE 57017

 Bioengineering

Using Tg(Vtg1:mcherry) Zebrafish Embryos to Test the Estrogenic Effects of Endocrine Disrupting Compounds

1Department of Aquaculture, Institute of Aquaculture and Environmental Safety, Faculty of Agricultural and Environmental Sciences, Szent István University, 2Institute of Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham

Video Coming Soon

JoVE 60462

 JoVE In-Press

An Electrochemiluminescence-Based Assay for MeCP2 Protein Variants

1Institute of Medical Genetics, Center for Pathobiochemistry and Genetics, Medical University of Vienna (MUV), 2Murdoch Children's Research Institute and Department of Paediatrics, University of Melbourne, Discipline of Child & Adolescent Health, Sydney Medical School, 3Department of Medical Chemistry and Pathobiochemistry, Medical University of Vienna

Video Coming Soon

JoVE 61054

 JoVE In-Press

Slicing and Culturing Pig Hearts under Physiological Conditions

1Institute of Molecular Cardiology, Department of Medicine, University of Louisville, 2Department of Bioengineering, University of Louisville, 3Diabetes and Obesity Center, Department of Medicine, University of Louisville, 4Department of Pharmacology and Toxicology, University of Louisville, 5Institute of Cardiovascular Sciences, University of Manchester, 6Faculty of Pharmacy, Zagazig University

Video Coming Soon

JoVE 60913

 JoVE In-Press

Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications

1Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 2Department of Chemical Physics and Optics, Faculty of Mathematics and Physics, Charles University, 3Department of Cell Biology, Faculty of Science, Charles University, 4First Faculty of Medicine, Charles University

Video Coming Soon

JoVE 60388

 JoVE In-Press

Development of a Larval Zebrafish Infection Model for Clostridioides difficile

1Division of Cellular and Molecular Neurobiology, Zoological Institute, Technische Universität Braunschweig, 2Department of Molecular Biotechnology, Turkish-German University, 3Institut für Mikrobiologie, Technische Universität Braunschweig, 4Braunschweig Integrated Centre of Systems Biology, 5Helmholtz Centre for Infection Research

JoVE 60793

 Developmental Biology

Screening for Thermotoga maritima Membrane-Bound Pyrophosphatase Inhibitors

1Research Program in Molecular and Integrative Biosciences, University of Helsinki, 2Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, 3School of Biomedical Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds

JoVE 60619

 Biochemistry

Labeling and Imaging of Amyloid Plaques in Brain Tissue Using the Natural Polyphenol Curcumin

1Field Neurosciences Institute, Ascension St. Mary's Hospital, 2Field Neurosciences Institute Laboratory for Restorative Neurology, Central Michigan University, 3Program in Neuroscience, Central Michigan University, 4Department of Psychology, Central Michigan University, 5Department of Health Sciences, Saginaw Valley State University

JoVE 60377

 Neuroscience

Preparation of Mitochondria from Ovarian Cancer Tissues and Control Ovarian Tissues for Quantitative Proteomics Analysis

1Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, 2Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, 3State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, 4National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 5Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University

JoVE 60435

 Cancer Research

Pre-clinical Model of Cardiac Donation after Circulatory Death

1Centre de recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), 2Deparment of pharmacology and physiology, Faculty of Medicine, Université de Montréal, 3Division of Cardiovascular Surgery, Toronto General Hospital, University Health Network, 4Department of surgery, Faculty of Medicine, Université de Montréal

JoVE 59789

 Medicine

Short-Term Free-Floating Slice Cultures from the Adult Human Brain

1Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, 2Department of Physiology, Ribeirão Preto Medical School, University of São Paulo, 3Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School, University of São Paulo, 4Department of Anatomy, Institute of Biosciences, São Paulo State University, 5Clinical Hospital at the Ribeirão Preto Medical School, University of São Paulo

JoVE 59845

 Neuroscience
123459
More Results...