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Acetic Acid: Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed)

Mammalian Cell Encapsulation in Alginate Beads Using a Simple Stirred Vessel

1Department of Chemical Engineering, McGill University, 2Michael Smith Laboratories & Department of Chemical and Biological Engineering, University of British Columbia, 3Michael Smith Laboratories & Department of Pharmaceutical Sciences, University of British Columbia

JoVE 55280


 Bioengineering

Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent

1Department of Offshore, Process and Energy Engineering, Cranfield University, 2School of Applied Chemical and Environmental Sciences, Sheridan College Institute of Technology and Advanced Learning, 3School of Engineering, University of Guelph, 4Carbon Systems Engineering, Centre for Combustion, Carbon Capture and Storage, Cranfield University

JoVE 55062


 Engineering

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


 Bioengineering

Production of Chemicals by Klebsiella pneumoniae Using Bamboo Hydrolysate as Feedstock

1Lab of Biorefinery, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 2University of Chinese Academy of Sciences, 3Biorefinery Research Center, Jeonbuk Branch Institute, Korea Research Institute of Bioscience & Biotechnology (KRIBB), 4School of Life Science and Technology, ShanghaiTech University

JoVE 55828


 Bioengineering

Introduction to Titration

JoVE 5699

Source: Laboratory of Dr. Yee Nee Tan — Agency for Science, Technology, and Research

Titration is a common technique used to quantitatively determine the unknown concentration of an identified analyte.1-4 It is also called volumetric analysis, as the measurement of volumes is critical in titration. There are many types of titrations based on the types of reactions they exploit. The most common types are acid-base titrations and redox titrations.5-11 In a typical titration process, a standard solution of titrant in a burette is gradually applied to react with an analyte with an unknown concentration in an Erlenmeyer flask. For acid-base titration, a pH indicator is usually added in the analyte solution to indicate the endpoint of titration.12 Instead of adding pH indicators, pH can also be monitored using a pH meter during a titration process and the endpoint is determined graphically from a pH titration curve. The volume of titrant recorded at the endpoint can be used to calculate the concentration of the analyte based on the reaction stoichiometry. For the acid-base titration presented in this video, the titrant is a standardized sodium hydroxide solution and the analyte is domestic vinegar. Vinegar is an acidic liquid that


 General Chemistry

Microfluidic-based Synthesis of Covalent Organic Frameworks (COFs): A Tool for Continuous Production of COF Fibers and Direct Printing on a Surface

1Institute of Chemical and Bioengineering, Department of Chemistry and Applied Bioscience, ETH Zurich, 2Departamento de Química Inorgánica, Universidad Autónoma de Madrid, 3Departamento de Química Inorgánica, Universidad de Granada, 4Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), 5School of Chemistry, University of Nottingham, 6Condensed Matter Physics Center (IFMAC), Universidad Autónoma de Madrid, 7Instituto Madrileño de Estudios Avanzados en Nanociencia (IMDEA Nanociencia)

JoVE 56020


 Chemistry

Protocols for Implementing an Escherichia coli Based TX-TL Cell-Free Expression System for Synthetic Biology

1Department of Biology, California Institute of Technology, 2Department of Bioengineering, California Institute of Technology, 3Synthetic Biology Center, Department of Bioengineering, Massachusetts Institute of Technology, 4School of Physics and Astronomy, University of Minnesota

JoVE 50762


 Biology

Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration

1Laboratory for Biomaterials and Bioengineering, Department Min-Met-Materials Eng & CHU de Québec Research Center, Canada Research Chair I for the Innovation in Surgery, Laval University, 2NSERC CREATE Program for Regenerative Medicine (NCPRM), Laval University, 3Department Electronics, Information and Bioengineering, Politecnico di Milano, 4Department of Chemical and Materials Engineering, University of Alberta, 5National Institute for Nanotechnology, National Research Council (Canada), 6Department of Chemical and Biochemical Engineering, University of Western Ontario

JoVE 52812


 Bioengineering

High-Throughput, Multi-Image Cryohistology of Mineralized Tissues

1Department of Reconstructive Sciences, University of Connecticut Health Center, 2Department of Computer Science and Engineering, University of Connecticut, 3Department of Orthopaedic Surgery, University of Connecticut Health Center, 4Department of Orthopaedics, University of Rochester

JoVE 54468


 Biology

Detection of the Genome and Transcripts of a Persistent DNA Virus in Neuronal Tissues by Fluorescent In situ Hybridization Combined with Immunostaining

1Virus and Centromere Team, Centre de Génétique et Physiologie Moléculaire et Cellulaire, CNRS UMR 5534, 2Université de Lyon 1, 3Laboratoire d'excellence, LabEX DEVweCAN, 4Institut de Virologie Moléculaire et Structurale, CNRS UPR 3296, 5Centre de Recherche en Cancérologie de Lyon, INSERM U1052, CNRS UMR 5286

JoVE 51091


 Neuroscience

A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites

1School of Public Health of Southeast University, Laboratory of Environment and Biosafety Research Institute of Southeast University in Suzhou, 2Key Laboratory of Child Development and Learning Science (Ministry of Education), School of Biological Science & Medical Engineering, Southeast University, 3School of Public Health, Tianjin Medical University, 4British Columbia Academy, Nanjing Foreign Language School

Video Coming Soon

JoVE 56445


 JoVE In-Press

Techniques for Processing Eyes Implanted With a Retinal Prosthesis for Localized Histopathological Analysis

1Bionics Institute, 2Department of Anatomical Pathology, St Vincent's Hospital Melbourne, 3Department of Pathology, University of Melbourne, 4Medical Bionics Department, University of Melbourne

JoVE 50411


 Medicine

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins

1Department of Biology, San Diego State University, 2Computational Science Research Center, San Diego State University, 3Bioinformatics and Medical Informatics Research Center, San Diego State University, 4Department of Mathematics and Statistics, San Diego State University, 5Department of Computer Science, San Diego State University, 6Mathematics and Computer Science Division, Argonne National Laboratory, 7SPARC Committee, Broad Institute

JoVE 52854


 Immunology and Infection

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