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A patent has been issued for an embedding medium that allows for the imaging of biological samples using light and/or electron microscopy. The medium, derived from a mixture of specific monomers, provides efficient imaging contrast and preserves the ultrastructure and fluorescence of the sample. It also reduces the need for contrasting agents and heavy metal salts, which can be toxic and alter biological properties. The invention aims to optimize electron microscopy in biological studies and provide a non-biointeracting medium that preserves the native fluorescence of the sample. [Extracted from the article]

Tehran, Iran, Emerging Technologies, Enzymes and Coenzymes, Health and Medicine, Metalloenzyme, Nanomaterials, Nanotechnology, Organosilica, Oxidoreductases, Peroxidases Keywords: Tehran; Iran; Emerging Technologies; Enzymes and Coenzymes; Health and Medicine; Metalloenzyme; Nanomaterials; Nanotechnology; Organosilica; Oxidoreductases; Peroxidases EN Tehran Iran Emerging Technologies Enzymes and Coenzymes Health and Medicine Metalloenzyme Nanomaterials Nanotechnology Organosilica Oxidoreductases Peroxidases 2023 FEB 17 (NewsRx) -- By a News Reporter-Staff News Editor at Health & Medicine Week -- Investigators discuss new findings in Nanotechnology - Organosilica. [Extracted from the article]

The article focuses on the brain degenerative capability of several metals including copper, iron and zinc which is present in the body can be linked to Alzheimer's disease (AD), Parkinson's disease and motor neuron diseases. Topics discussed include antioxidant removal of toxic free radicals and oxygen delivery to brain cells, binding of copper to the amyloid beta peptide in the extracellular space of the AD patients and use of high-resolution microscopy method for copper detection. INSET: HOW COPPER LOSS KILLS.

Tracking ground moving targets with ground moving target indicator (GMTI) measurements only could face a potential problem of losing tracks or track mingling, if the targets move together within the range of GMTI sensing uncertainty for an extended period of time. We propose a remedy for this problem by using local motion features extracted from high resolution range (RRR) profiles to assist data association. Unlike other HRR features, the new local motion features carry both spatial and temporal information and are ideal for feature aided tracking. A probabilistic logic based tracker is developed for local motion feature aided tracking. [ABSTRACT FROM AUTHOR]

A ∑ = 11 {332} Ni bicrystal was grown by solidification. The Grain Boundary (GB) atomic structure studied by high resolution electron microscopy (HREM) has been shown to depend upon the position in the bicrystal of the extracted sample. Strongly correlated to the atomic structure, (GB) defects (GBD) have been characterized: all their Burgers vectors belong to the Displacement Shift Complete (DSC) lattice and the height of the step associated with each GBD varies up to a few nanometers. In the symmetrical and almost symmetrical GBs, at the head of the bicrystal, the dislocation cores can be well localized, whereas in the asymmetrical GBs, at the end of the bicrystal, their cores are much more difficult to localize on the HREM image. The influence on the GB structures of the impurity content which varies along the bicrystal is also discussed. [ABSTRACT FROM AUTHOR]