Iodine isotopes emissions from

Detection of the symporter protein can also take place through various means. In western blotting, proteins harvested from cells or tissues can be separated on a denaturing polyacylamide gel, transferred to membranes, and then probed with specific antibodies directed toward the symporter protein that can indicate whether the symporter was present in that specific tissue. These specific antibodies may also be utilized in a process called immunohisto-chemistry. In this method, the tissue remains whole and is sectioned into thin slices for easy study under a microscope. Treatment of this tissue with the antibody directed against the symporter then allows for the detection of the protein within the tissue slice. A final method of determining symporter expression and iodine uptake makes use of the fact that some iodine isotopes are radioactive. The location of these radioactive isotopes can be determined by using cameras that detect iodines radioactive emissions. This allows... 

Radical trapping studies, 14 277 Radicidation, 8 655 Radioactive decay, 21 287—288 particles associated with, 21 291 Radioactive decay properties of uranium isotopes, 25 393 Radioactive emission, interaction with tracer molecules, 21 276 Radioactive iodine, protection from,... 

Notice that the mass number doesn t change in going from 1-131 to Xe-131, but the atomic number increases by one. In the iodine nucleus, a neutron was converted (decayed) into a proton and an electron, and the electron was emitted from the nucleus as a beta particle. Isotopes with a high neutron/ proton ratio often undergo beta emission, because this decay mode allows the number of neutrons to be decreased by one and the number of protons to be increased by one, thus lowering the neutron/proton ratio. 

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