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- Iodine-125 abstract "Iodine-125 (125I) is a radioisotope of iodine which has uses in biological assays, nuclear medicine imaging and in radiation therapy as brachytherapy to treat prostate cancer and brain tumors. It is the second longest-lived radioisotope of iodine, after iodine-129.Its half-life is 59.43 days and it decays by electron capture to an excited state of tellurium-125. This state is not the metastable Te-125m, but rather a lower energy state that decays immediately by gamma decay with a maximum energy of 35 keV. Some of the excess energy of the excited Te-125 may be internally converted ejected electrons (also at 35 keV), or to x-rays (from electron bremsstrahlung), and also a total of 21 Auger electrons, which are produced at the low energies of 50 to 500 electron volts. Eventually, stable nonradioactive ground-state Te-125 is produced, as the final decay product. The internal conversion and Auger electrons cause little damage outside the cell which contains the isotope atom. The X-rays and gamma rays are of low enough energy to deliver a higher radiation dose selectively to nearby tissues, in "permanent" brachytherapy where the isotope capsules are left in place (I-125 competes with palladium-103 in such uses).Because of its relatively long half-life and emission of low-energy photons which can be detected by gamma-counter crystal detectors, I-125 is a preferred isotope for tagging antibodies in radioimmunoassay and other gamma-counting procedures involving proteins outside the body. The same properties of the isotope make it useful for brachytherapy (as noted), and for certain nuclear medicine scanning procedures, in which it is attached to proteins (albumin or fibrinogen), and where a longer half-life than provided by I-123 is required for test lasting several days.Iodine-125 has been used in scanning/imaging the thyroid, but iodine-123 is preferred for this purpose, due to better radiation penetration and shorter half-life (13 hours). For radiotherapy killing of tissues that absorb iodine (such as the thyroid) or that absorb an iodine-containing radiopharmaceutical, the beta-emitter iodine-131 is the preferred isotope; iodine-125 is used therapeutically (to kill tissue) only in brachytherapy.125I is created by the electron capture decay of 125Xe, which is a synthetic isotope of xenon, itself created by neutron capture of the slightly radioactive 124Xe, which occurs naturally with an abundance of around 0.1%. Because of the synthetic production route of 125I and its short half-life, the natural abundance is effectively zero.".
- Iodine-125 wikiPageExternalLink search=%22iodine%20125%22.
- Iodine-125 wikiPageID "3345314".
- Iodine-125 wikiPageLength "10508".
- Iodine-125 wikiPageOutDegree "54".
- Iodine-125 wikiPageRevisionID "671000798".
- Iodine-125 wikiPageWikiLink Auger_effect.
- Iodine-125 wikiPageWikiLink Auger_electron.
- Iodine-125 wikiPageWikiLink Bioassay.
- Iodine-125 wikiPageWikiLink Biological_assay.
- Iodine-125 wikiPageWikiLink Brachytherapy.
- Iodine-125 wikiPageWikiLink Brain_tumor.
- Iodine-125 wikiPageWikiLink Bremsstrahlung.
- Iodine-125 wikiPageWikiLink Category:Isotopes_of_iodine.
- Iodine-125 wikiPageWikiLink Category:Radiation_therapy.
- Iodine-125 wikiPageWikiLink Category:Radiobiology.
- Iodine-125 wikiPageWikiLink Category:Radiopharmaceuticals.
- Iodine-125 wikiPageWikiLink Disproportionation.
- Iodine-125 wikiPageWikiLink Electron_capture.
- Iodine-125 wikiPageWikiLink Electronvolt.
- Iodine-125 wikiPageWikiLink Gamma_decay.
- Iodine-125 wikiPageWikiLink Gamma_ray.
- Iodine-125 wikiPageWikiLink Gas.
- Iodine-125 wikiPageWikiLink Half-life.
- Iodine-125 wikiPageWikiLink Halogen.
- Iodine-125 wikiPageWikiLink Hypohalite.
- Iodine-125 wikiPageWikiLink Hypoiodite.
- Iodine-125 wikiPageWikiLink Hypoiodous_acid.
- Iodine-125 wikiPageWikiLink Internal_conversion.
- Iodine-125 wikiPageWikiLink Iodide.
- Iodine-125 wikiPageWikiLink Iodine.
- Iodine-125 wikiPageWikiLink Iodine-129.
- Iodine-125 wikiPageWikiLink Iodine_in_biology.
- Iodine-125 wikiPageWikiLink Isotopes_of_iodine.
- Iodine-125 wikiPageWikiLink Isotopes_of_palladium.
- Iodine-125 wikiPageWikiLink Isotopes_of_tellurium.
- Iodine-125 wikiPageWikiLink Isotopes_of_xenon.
- Iodine-125 wikiPageWikiLink McMaster_Nuclear_Reactor.
- Iodine-125 wikiPageWikiLink McMaster_University.
- Iodine-125 wikiPageWikiLink Medicinal_radiocompounds.
- Iodine-125 wikiPageWikiLink National_Research_Universal_Reactor.
- Iodine-125 wikiPageWikiLink National_Research_Universal_reactor.
- Iodine-125 wikiPageWikiLink Neutron_capture.
- Iodine-125 wikiPageWikiLink Nuclear_medicine.
- Iodine-125 wikiPageWikiLink Nuclear_reactor.
- Iodine-125 wikiPageWikiLink Palladium-103.
- Iodine-125 wikiPageWikiLink Potassium_iodide.
- Iodine-125 wikiPageWikiLink Prostate_cancer.
- Iodine-125 wikiPageWikiLink Radiation_therapy.
- Iodine-125 wikiPageWikiLink Radioimmunoassay.
- Iodine-125 wikiPageWikiLink Radioisotope.
- Iodine-125 wikiPageWikiLink Radionuclide.
- Iodine-125 wikiPageWikiLink Radiopharmaceutical.
- Iodine-125 wikiPageWikiLink Tellurium-125.
- Iodine-125 wikiPageWikiLink X-ray.
- Iodine-125 wikiPageWikiLink X-rays.
- Iodine-125 wikiPageWikiLink Xenon.
- Iodine-125 wikiPageWikiLink Xenon-124.
- Iodine-125 wikiPageWikiLink Xenon-125.
- Iodine-125 wikiPageWikiLink Zircaloy.
- Iodine-125 wikiPageWikiLink Zirconium_alloy.
- Iodine-125 wikiPageWikiLinkText "Ibrin".
- Iodine-125 wikiPageWikiLinkText "Iodine-125".
- Iodine-125 wikiPageWikiLinkText "iodine-125".
- Iodine-125 wikiPageWikiLinkText "that article".
- Iodine-125 alternateNames "Radioiodine".
- Iodine-125 background "#c9F".
- Iodine-125 halflife "5132160.0".
- Iodine-125 hasPhotoCollection Iodine-125.
- Iodine-125 massNumber "125".
- Iodine-125 numNeutrons "72".
- Iodine-125 numProtons "53".
- Iodine-125 symbol "I".
- Iodine-125 wikiPageUsesTemplate Template:Frac.
- Iodine-125 wikiPageUsesTemplate Template:Infobox_isotope.
- Iodine-125 wikiPageUsesTemplate Template:Radiopharmaceuticals.
- Iodine-125 wikiPageUsesTemplate Template:Reflist.
- Iodine-125 subject Category:Isotopes_of_iodine.
- Iodine-125 subject Category:Radiation_therapy.
- Iodine-125 subject Category:Radiobiology.
- Iodine-125 subject Category:Radiopharmaceuticals.
- Iodine-125 hypernym Radioisotope.
- Iodine-125 type Drug.
- Iodine-125 type Drug.
- Iodine-125 type Isotope.
- Iodine-125 type Physic.
- Iodine-125 comment "Iodine-125 (125I) is a radioisotope of iodine which has uses in biological assays, nuclear medicine imaging and in radiation therapy as brachytherapy to treat prostate cancer and brain tumors. It is the second longest-lived radioisotope of iodine, after iodine-129.Its half-life is 59.43 days and it decays by electron capture to an excited state of tellurium-125.".
- Iodine-125 label "Iodine-125".
- Iodine-125 sameAs Jodium-125.
- Iodine-125 sameAs m.05_f4bk.
- Iodine-125 sameAs Q6501879.
- Iodine-125 sameAs Q6501879.
- Iodine-125 wasDerivedFrom Iodine-125?oldid=671000798.
- Iodine-125 isPrimaryTopicOf Iodine-125.