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Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.

Dendrimer-based Uneven Nanopatterns to Locally Control Surface Adhesiveness: A Method to Direct Chondrogenic Differentiation

1Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), 2Department of Engineering Electronics, University of Barcelona (UB), 3Networking Biomedical Research Center (CIBER), 4Instituto de Investigacin Biomédica de Málaga (IBIMA), Department of Organic Chemistry, Universidad de Málaga (UMA), 5Andalusian Centre for Nanomedicine and Biotechnology-BIONAND, 6Unidad de Bioingeniería Tisular y Terapia Celular (GBTTC-CHUAC), Grupo de Reumatolog ía, Instituto de Investigación Biomèdica de A Coruña (INIBIC), Complexo Hospitalario Universitario de A Coruña (CHUAC), Sergas, Universidade da Coruña (UDC), 7Institució Catalana de Recerca i Estudis Avançats (ICREA), 8Instituto de Investigación Biomédica de Málaga (IBIMA), Department of Cell Biology, Genetics and Physiology, Universidad de Málaga (UMA)

JoVE 56347


 Bioengineering

Stereotaxic Surgery for Excitotoxic Lesion of Specific Brain Areas in the Adult Rat

1Helen Wills Neuroscience Institute, University of California Berkeley, 2Office of Laboratory Animal Care, University of California Berkeley, 3McGovern Institute for Brain Research & The Department of Brain and Cognitive Science, Massachusetts Institute of Technology, 4Integrative Biology Department, University of California Berkeley

JoVE 4079


 Neuroscience

Unicellular Selection of Living Cells in Liquid Medium Using Laser Microdissection and a Pressure Catapulting System

1U1165, Université Paris-Diderot, INSERM, 2Pôle de Recherches Sino-Français en Science du Vivant et Génomique, Shanghai Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, 3Laboratoire de Pathologie, AP-HP-Hôpital Saint-Louis, 4Service d’Oncologie Médicale, AP-HP-Hôpital Avicenne, 5Université Paris 13

Video Coming Soon

JoVE 58234


 JoVE In-Press

A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples

1Obstetrics, Gynecology and Reproductive Sciences, University of California, San Francisco - UCSF, 2Buck Institute for Age Research, 3Department of Chemistry, Purdue University

JoVE 1398


 Biology

Density Gradient Multilayered Polymerization (DGMP): A Novel Technique for Creating Multi-compartment, Customizable Scaffolds for Tissue Engineering

1Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, 2Biomedical Sciences Program, University of California, San Diego, 3Department of Bioengineering, University of California, San Diego

JoVE 50018


 Bioengineering

Isolation and Kv Channel Recordings in Murine Atrial and Ventricular Cardiomyocytes

1Experimental and Clinical Research Center (ECRC), Charité Medical Faculty and Max-Delbrück Center for Molecular Medicine (MDC), 2Medical Department, Division of Cardiology, Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, 3Medical Department, Division of Cardiology and Angiology, Campus Mitte, Charité - Universitätsmedizin Berlin

JoVE 50145


 Biology

Conducting Miller-Urey Experiments

1School of Chemistry and Biochemistry, Georgia Institute of Technology, 2Earth-Life Science Institute, Tokyo Institute of Technology, 3Institute for Advanced Study, 4Astromaterials Research and Exploration Science Directorate, NASA Johnson Space Center, 5Goddard Center for Astrobiology, NASA Goddard Space Flight Center, 6Geosciences Research Division, Scripps Institution of Oceanography, University of California at San Diego

JoVE 51039


 Chemistry

Immunohistochemical and Calcium Imaging Methods in Wholemount Rat Retina

1Department of Neurobiology, University of California, Los Angeles, 2Veterans Administration Greater Los Angeles Healthcare System, 3Departments of Physiology & Biophysics and Ophthalmology & Visual Sciences, Dalhousie University, 4Departments of Neurobiology and Medicine, Jules Stein Eye Institute, CURE-Digestive Diseases Research Center, David Geffen School of Medicine, University of California, Los Angeles

JoVE 51396


 Neuroscience

Porous Silicon Microparticles for Delivery of siRNA Therapeutics

1Department of Nanomedicine, Houston Methodist Research Institute, 2MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, 3Pediatrics Department of Union Hospital, Huazhong University of Science and Technology, 4CAS Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, National Center for Nanoscience & Technology of China, 5Department of Medicine, Weill Cornell Medical College, 6Department of Cell and Developmental Biology, Weill Cornell Medical College

JoVE 52075


 Bioengineering

Fat Body Organ Culture System in Aedes Aegypti, a Vector of Zika Virus

1Department of Biology, New Mexico State University, 2Department of Molecular Genetics and Microbiology, Duke University, 3Department of Computer Sciences, New Mexico State University, 4Department of Epidemiology of Microbial Diseases, Yale School of Public Health, 5Institute of Applied Biosciences, New Mexico State University

JoVE 55508


 Biology

Carbon and Nitrogen Analysis of Environmental Samples

JoVE 10012

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

Elemental Analysis is a method used to determine elemental composition of a material. In environmental samples such as soils, scientists are particularly interested in the amounts of two ecologically important elements, nitrogen and carbon. Elemental analysis by the flash combustion technique works by oxidizing the sample with a catalyst through combustion in a high-temperature chamber. The products of combustion are then reduced to N2 and CO2 and detected with a thermal conductivity detector. Unlike other methods for total nitrogen determination (Kjeldahl method) and total carbon determination (Walkley-Black, Heanes or Leco methods), the flash combustion technique does not use toxic chemicals and is therefore much safer to use. This video will demonstrate combustion-based elemental analysis using the Flash EA 1112 instrument from Thermo Fisher Scientific.


 Environmental Science

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