Reliability of Nano Devices and Systems: Nuclear Spins of Stable Magnetic Isotopes as the Reliability Factor of Biomolecular Nanoreactors


Keywords: , , , , , ,

The trend of “nanoscaling” brings engineering down to the dimensions of molecular structures. However, it also poses the problem of how to create a reliable system from molecular components experiencing permanent fluctuations? Fortunately, engineers may learn wisdom by the examples of Nature to achieve the high systems reliability while dealing with unreliable elements. There are several lines of creating reliable devices from unreliable components. One of them is reservation, when redundant components of the same type are introduced in the system. Another line of keeping the high systems reliability is a preventive maintenance replacement of components. Such a preventive antioxidant effect in mitochondrial nanoreactors would be afforded by nuclear spin magnetic moment of magnesium-25. It was discovered that this magnetic isotope works as much more effective cofactor in mitochondrial oxidative phosphorylation than the nonmagnetic isotopes 24Mg and 26Mg (I = 0). This fact transpires that the yield of deleterious oxygen free radicals as the by-products of electron transport is bound to be much lower in the presence of 25Mg by comparison with 24Mg or 26Mg. On the same spin-chemistry basis, magnesium-25 and other kinds of stable magnetic isotopes are promising for optoelectronics and nano-photonics to improve efficiency and reliability of the relevant molecular devices.

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Journal: TechConnect Briefs
Volume: 1, Nanotechnology 2008: Materials, Fabrication, Particles, and Characterization – Technical Proceedings of the 2008 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: June 1, 2008
Pages: 254 - 257
Industry sector: Advanced Materials & Manufacturing
Topic: Composite Materials
ISBN: 978-1-4200-8503-7