Word: yttrium
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Other antibodies carry tiny payloads of radioactive isotopes or poisons, which kill the tumor cell without affecting surrounding tissue. IDEC Pharmaceuticals in San Diego has just completed final rounds of testing on Zevalin, an antibody that is hooked to the radioactive isotope yttrium-90. Last month IDEC reported that the tumors in about one-third of 73 late-stage non-Hodgkins lymphoma patients were undetectable after being treated with Zevalin...
Other antibodies carry tiny payloads of radioactive isotopes or poisons, which kill the tumor cell without affecting surrounding tissue. IDEC Pharmaceuticals, in San Diego, just completed final rounds of testing Zevalin, an antibody that is hooked to the radioactive isotope, yttrium-90. Last month, IDEC reported that the tumors in about one third of 73 late-stage non-Hodgkins lymphoma patients were undetectable after being treated with Zevalin...
...colleagues first stunned the research community six years ago by showing that a compound containing the exotic element yttrium could become a superconductor at 98 degrees on the Kelvin scale favored by physicists (that's a not-so-balmy -283 degreesF). That record, broken repeatedly, is now as outdated as the 19-foot pole vault, and last month the contest heated up again. First Chu announced in the journal Nature that a mercury-based compound could superconduct at 153 degreesK (-184 degreesF), a startling 20 degrees higher than the old standard. He got that result by subjecting the material...
...team tried lanthanum, the rare-earth* component of the IBM compound. Maw-Kuen Wu, head of the team's Alabama unit and a former graduate student of Chu's, replaced the lanthanum with another rare-earth element, yttrium...
FOOTNOTE:*The so-called rare earths, a group of 17 chemical elements, are not rare at all; yttrium, for example, is thought to be more abundant than lead. These elements were mislabeled because they were first found in truly rare minerals...