Results 251 to 260 of about 688,031 (301)

Das Redox-Potential

1965
Da jeder Oxydationsvorgang in der Weise ablauft, das ein Oxydationsmittel von einem Reduktionsmittel reduziert wird, also jede Oxydation prinzipiell mit einer Reduktion gekoppelt ist, spricht man allgemeiner von Reduktions-Oxydations-Vorgangen, kurz von Redox-Prozessen.
W. Heimann, K. Wisser
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Can redox-sensitive fluorescent probes measure intracellular redox potentials?

Il Nuovo Cimento B, 2010
The generation of ratiometric, glutathione specific, redox-sensitive variants of fluorescent probes enable real-time monitoring of intracellular redox changes by making it possible to cancel out most or all of the possible variability caused by instrument efficiency and effective dye content.
Papi, Massimiliano, De Spirito, Marco, Maulucci, Giuseppe   +2 more
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Circular dichroism and redox properties of high redox potential ferredoxins

Biochemistry, 1985
The circular dichroism (CD) spectra of 13 examples of high-potential iron-sulfur proteins (HiPIPs), a class of [4Fe-4S] ferredoxins, have been determined. In contrast to the proposal of Carter [Carter, C. W., Jr. (1977) J. Biol. Chem. 252, 7802-7811], no strict correlation between visible CD features and utilization of the [4Fe-4S]2+/[4Fe-4S]3 ...
C T, Przysiecki, T E, Meyer, M A, Cusanovich   +2 more
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Redox potentials and redox reactions in deep groundwater systems

Chemical Geology, 1992
Both laboratory investigations and field studies of deep groundwater systems indicate that stable and reproducible redox potentials can be measured with a precision of ± 25 mV. The Eh data measured in the field are in good agreement with the half-cell reaction: “Fe(OH)3”(s)+3H++e−⇌Fe2++3H2O involving hydrous ferric oxide and Fe2+ in solution,
I. Grenthe, W. Stumm, M. Laaksuharju, A.C. Nilsson, P. Wikberg   +4 more
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Construction of Platinum‐Tipped Redox Probes for Determining Soil Redox Potential

Journal of Environmental Quality, 2004
ABSTRACTRedox probes are typically constructed by soldering Pt wire to a metal wire or rod, such as copper or brass. The junction between the Pt and wire or rod is often sealed with an epoxy resin and hardener or with heat‐shrink tubing. Microcracks (small cracks invisible to the unaided eye) can form in the hardened resin and result in incorrect ...
Carrie C, Wafer, J Barrett, Richards, Deanna L, Osmond   +2 more
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Measurements of Soil Redox Potential

Soil Science Society of America Journal, 2009
Soil redox potentials (Eh) are commonly measured and operationally defined using platinum (Pt) electrodes, but there are variations in the methodology and instrumentation for measuring the associated voltages that may lead to imprecise and inaccurate estimates of oxidation–reduction intensity in the soil environment.
M. C. Rabenhorst, W. D. Hively, B. R. James   +2 more
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High Redox Potential Peroxidases

2007
High redox potential peroxidases secreted by some basidiomycete fungi are unique enzymes that play a central role in the degradation of lignin (Kirk and Cullen, 1998). Plant biomass (bryophytes excluded) is mainly made up of two polysaccharides, cellulose and hemicelluloses, and the complex aromatic polymer of lignin (Fengel and Wegener, 1984).
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Chapter IV Redox Potential

1970
Publisher Summary Redox potential may be determined as voltage (in volts or millivolts), when an inert noble metal electrode is connected to a reference electrode and both are placed in a solution containing a reversible redox system. This value gives information on the following: (1) the formation of redox potential in cultures of micro-organisms ...
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Redox Potential

2013
Yi Lu, Nicholas M. Marshall
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Redox Potential of Peroxidases

2010
Redox potential of peroxidases greatly influences the range of oxidizable substrates: in principle, peroxidases may only catalyze the oxidation of substrates with lower redox potential. There is substantial information on the factors that modulate the redox potential of heme proteins.
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