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    iridium tagged posts

    Scientists finally crack down Nature’s most Common Chemical Bond

    May 26, 2020, Categories  Chemistry/Nanotechnology

    A catalyst (center) based on iridium (blue ball) can snip a hydrogen atom (white balls) off a terminal methyl group (upper and lower left) to add a boron-oxygen compound (pink and red) that is easily swapped out for more complicated chemical groups. The reaction works on simple hydrocarbon chains (top reaction) or more complicated carbon compounds (bottom reaction). The exquisite selectivity of this catalytic reaction is due to the methyl group (yellow) that has been added to the iridium catalyst. The black balls are carbon atoms; red is oxygen; pink is boron. (UC Berkeley image by John Hartwig)

    Carbon-hydrogen bonds in hydrocarbon molecules have resisted functionalization until now...

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    Simply Shining Light on ‘Dinosaur Metal’ compound Kills Cancer Cells

    February 5, 2019, Categories  Biology/Biotechnology, Health/Medical

    Iridium with its organic coat which is hooked up to the protein albumin (HSA). Together that enter cancer cells and deliver the iridium photosensitizer to the nucleus. On irradiation with blue light, the iridium not only glows green, but converts oxygen in the cell to a toxic form called triplet oxygen, which kills the cell.
    Credit: University of Warwick

    A new compound based on Iridium, a rare metal which landed in the Gulf of Mexico 66 M years ago, hooked onto albumin, a protein in blood, can attack the nucleus of cancerous cells when switched on by light, University of Warwick researchers have found...

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    Cancer Cells destroyed with Dense Metal found in Asteroids

    November 3, 2017, Categories  Uncategorized

    Organoiridium Photosensitizers Induce Specific Oxidative Attack on Proteins within Cancer Cells

    Organoiridium Photosensitizers Induce Specific Oxidative Attack on Proteins within Cancer Cells

    Cancer cells can be targeted and destroyed with the metal from the asteroid that caused the extinction of the dinosaurs, according to new research by an international collaboration between the University of Warwick and Sun Yat-Sen University in China. Researchers have demonstrated that iridium – the world’s second densest metal – can be used to kill cancer cells by filling them with deadly version of oxygen, without harming healthy tissue.

    The researchers created a compound of iridium and organic material, which can be directly targeted towards cancerous cells, transferring energy to the cells to turn the oxygen (O2) inside them into singlet oxygen, which is poisonous and kills the cell – withou...

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