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

 
 
Carboxylic Acids: Organic compounds containing the carboxy group (-Cooh). This group of compounds includes amino acids and fatty acids. Carboxylic acids can be saturated, unsaturated, or aromatic.

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

Quantification of three DNA Lesions by Mass Spectrometry and Assessment of Their Levels in Tissues of Mice Exposed to Ambient Fine Particulate Matter

1Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, 2Departamento de Farmacociências, Universidade Federal de Ciências da Saúde de Porto Alegre, 3Laboratório de Poluição Atmosfêrica Experimental - LIM05, Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, 4Instituto de Estudos Avançados, Universidade de São Paulo, 5Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo

Video Coming Soon

JoVE 59734


 JoVE In-Press

HKUST-1 as a Heterogeneous Catalyst for the Synthesis of Vanillin

1Autonomous Metropolitan University-Azcapotzalco, 2Institute of Catalysis and Petroleum Chemistry, ICP-CSIC, 3Department of Chemistry, Autonomous Metropolitan University-Iztapalapa, 4Department of Chemistry, Center of Investigation and Superior Studies (IPN), 5Research Institute of Material, National Autonomous University of Mexico

JoVE 54054


 Chemistry

LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism

1Center for Cancer Pharmacology, University of Pennsylvania, 2Center for Excellence in Environmental Toxicology, University of Pennsylvania, 3Penn SRP and Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, 4Division of Traumatology, Department of Surgery, Critical Care and Acute Care Surgery, University of Pennsylvania, 5A.J. Drexel Autism Institute, Drexel University

JoVE 53941


 Environment

Electron Paramagnetic Resonance (EPR) Spectroscopy

JoVE 10463

Source: David C. Powers, Tamara M. Powers, Texas A&M


In this video, we will learn the basic principles behind Electron Paramagnetic Resonance (EPR). We will use EPR spectroscopy to study how dibutylhydroxy toluene (BHT) behaves as an antioxidant in the autoxidation of aliphatic aldehydes.


 Inorganic Chemistry

Reducing Agents

JoVE 10354

Source: Vy M. Dong and Daniel Kim, Department of Chemistry, University of California, Irvine, CA


Controlling the reactivity and selectivity during the synthesis of a molecule is very important criteria for chemists. This has led to the development of many reagents that allow chemists to pick and choose reagents suitable for a given task.…


 Organic Chemistry II

Ozonolysis of Alkenes

JoVE 10339

Source: Vy M. Dong and Zhiwei Chen, Department of Chemistry, University of California, Irvine, CA


This experiment will demonstrate an example of an ozonolysis reaction to synthesize vanillin from isoeugenol (Figure 1). Ozonolysis of alkenes, an oxidation reaction between ozone and an alkene, is a common method to prepare…


 Organic Chemistry II

Ion-Exchange Chromatography

JoVE 10269

Source: Laboratory of Dr. B. Jill Venton - University of Virginia


Ion-exchange chromatography is a type of chromatography that separates analytes based on charge. A column is used that is filled with a charged stationary phase on a solid support, called an ion-exchange resin. Strong cation-exchange chromatography preferentially separates…


 Analytical Chemistry

An Overview of Alkenone Biomarker Analysis for Paleothermometry

JoVE 10219

Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst


Throughout this series of videos, natural samples were extracted and purified in search of organic compounds, called biomarkers, that can relate information on climates and environments of the past. One of the samples analyzed was sediment. Sediments accumulate…


 Earth Science

Gas Chromatography (GC) with Flame-Ionization Detection

JoVE 10187

Source: Laboratory of Dr. B. Jill Venton - University of Virginia


Gas chromatography (GC) is used to separate and detect small molecular weight compounds in the gas phase. The sample is either a gas or a liquid that is vaporized in the injection port. Typically, the compounds analyzed are less than 1,000 Da, because it is difficult to…


 Analytical Chemistry

Purification of a Total Lipid Extract with Column Chromatography

JoVE 10159

Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst


The product of an organic solvent extraction, a total lipid extract (TLE), is often a complex mixture of hundreds, if not thousands, of different compounds. The researcher is often only interested in a handful of compounds. The compounds of interest may belong to …


 Earth Science

Conversion of Fatty Acid Methyl Esters by Saponification for Uk'37 Paleothermometry

JoVE 10158

Source: Laboratory of Jeff Salacup - University of Massachusetts Amherst


The product of an organic solvent extraction, a total lipid extract (TLE), is often a complex mixture of hundreds, if not thousands, of different compounds. The researcher is often only interested in a handful of compounds or, if interested in many, may need to remove unwanted constituents that…


 Earth Science

More Results...