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Related Concept Videos

Free Energy01:21

Free Energy

Free energy—abbreviated as G for the scientist Gibbs who discovered it—is a measurement of useful energy that can be extracted from a reaction to do work. It is the energy in a chemical reaction that is available after entropy is accounted for. Reactions that take in energy are considered endergonic and reactions that release energy are exergonic. Plants carry out endergonic reactions by taking in sunlight and carbon dioxide to produce glucose and oxygen. Animals, in turn, break down the...
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Mitochondrial protein import is powered by two distinct energy sources: ATP hydrolysis and electrochemical potential across the inner membrane. Newly synthesized precursors are bound by cytosolic chaperones of the Hsp70 family, which guide them to the import receptors on the mitochondrial surface. Utilizing the energy of ATP hydrolysis, Hsp70 chaperones transfer these precursors to the TOM receptors on the mitochondrial outer membrane.
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Trophic Efficiency00:46

Trophic Efficiency

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JUMPn: A Streamlined Application for Protein Co-Expression Clustering and Network Analysis in Proteomics
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LEPA: from proteomics to energy conversion.

Fernando Cortes-Salazar1, Anne-Laure Gassner, Manuel A Méndez

  • 1Laboratoire d'Electrochimie Physique et Analytique, Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne.

Chimia
|October 27, 2011
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Summary

Researchers at the Laboratoire d'Electrochimie Physique et Analytique explore charge transfer, bio-analytical microchips, and electrochemical methods for mass spectrometry. This review highlights advancements in electrochemical techniques and their applications.

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Area of Science:

  • Analytical Chemistry
  • Physical Chemistry
  • Electrochemistry

Background:

  • The Laboratoire d'Electrochimie Physique et Analytique (LEPA) at EPFL conducts interdisciplinary research.
  • Focus on fundamental and applied electrochemical phenomena.

Purpose of the Study:

  • To review diverse research areas within LEPA.
  • To highlight advancements in electrochemical analysis and interface science.

Main Methods:

  • Charge transfer reactions at soft interfaces.
  • Development of bio-analytical microchips and electrophoretic methods.
  • Electrochemical ionization for mass spectrometry.
  • Scanning Electrochemical Microscopy (SECM).

Main Results:

  • Summarizes key findings and methodologies across LEPA's research domains.
  • Demonstrates the breadth of electrochemical applications from fundamental science to bioanalysis.

Conclusions:

  • LEPA is at the forefront of electrochemical research.
  • The reviewed techniques offer powerful tools for analytical and physical chemistry challenges.