High-Frequency Oscillations in the Belousov−Zhabotinsky Reaction
نویسندگان
چکیده
منابع مشابه
High-frequency oscillations in the Belousov-Zhabotinsky reaction.
Chemical oscillations in the classic Belousov-Zhabotinsky (BZ) system typically have a period of a few minutes, which can be increased significantly by changing the organic substrate. Here we show that by changing the temperature and concentrations, an increase of 3-4 orders of magnitude in the frequency of BZ oscillations can be obtained. At elevated temperatures, in high concentration mixture...
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The conversion of mechanical to chemical energy is a natural phenomenon that few synthetic materials have been able to mimic robustly. The fi rst demonstration of mechanical triggering of Belousov–Zhabotinsky (BZ) oscillations is presented in N -isopropylacrylamideco -Ru(bpy) 3 gels for which the oscillatory nature of the BZ reaction can be visualized via periodic changes in color. It is demons...
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High frequency oscillations (HFOs) constitute a novel trend in neurophysiology that is fascinating neuroscientists in general, and epileptologists in particular. But what are HFOs? What is the frequency range of HFOs? Are there different types of HFOs, physiological and pathological? How are HFOs generated? Can HFOs represent temporal codes for cognitive processes? These questions are pressing ...
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Because of their close interaction with neuronal physiology, astrocytes can modulate brain function in multiple ways. Here, we demonstrate a yet unknown astrocytic phenomenon: Astrocytes cultured on microelectrode arrays (MEAs) exhibited extracellular voltage fluctuations in a broad frequency spectrum (100-600 Hz) after electrical stimulation. These aperiodic high-frequency oscillations (HFOs) ...
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ژورنال
عنوان ژورنال: The Journal of Physical Chemistry A
سال: 2009
ISSN: 1089-5639,1520-5215
DOI: 10.1021/jp901318z