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*  Isotopes of carbon - Wikipedia
The longest-lived radioisotope is 14C, with a half-life of 5,700 years. This is also the only carbon radioisotope found in ... The least stable isotope is 8C, with a half-life of 2.0 x 10−21 s. Carbon-11 or 11C is a radioactive isotope of carbon that ... The most stable artificial radioisotope is 11C, which has a half-life of 20.334 minutes. All other radioisotopes have half- ... 4 He Carbon-11 is commonly used as a radioisotope for the radioactive labeling of molecules in positron emission tomography. ...
  https://en.wikipedia.org/wiki/Isotopes_of_carbon
*  N-Methylspiperone - Wikipedia
Labeled with the radioisotope carbon-11, it can be used for positron emission tomography. Bengt Andree; et al. (August 1998). " ...
  https://en.wikipedia.org/wiki/N-Methylspiperone
*  Spiperone - Wikipedia
Labeled with the radioisotope carbon-11, it can be used for positron emission tomography. Zheng LT, Hwang J, Ock J, Lee MG, Lee ...
  https://en.wikipedia.org/wiki/Spiperone
*  List of MeSH codes (D01) - Wikipedia
... calcium radioisotopes MeSH D01.496.123.328 --- carbon radioisotopes MeSH D01.496.156.300 --- cerium radioisotopes MeSH D01.496. ... calcium radioisotopes MeSH D01.496.749.154 --- carbon radioisotopes MeSH D01.496.749.185 --- cerium radioisotopes MeSH D01.496. ... cobalt radioisotopes MeSH D01.496.360.400 --- gallium radioisotopes MeSH D01.496.381.550 --- gold radioisotopes MeSH D01.496. ... iron radioisotopes MeSH D01.496.532.500 --- mercury radioisotopes MeSH D01.496.586.520 --- nitrogen radioisotopes MeSH D01.496. ...
  https://en.wikipedia.org/wiki/List_of_MeSH_codes_(D01)
*  Bomb pulse - Wikipedia
Carbon-14, the radioisotope of carbon-12, is naturally developed in trace amounts in the atmosphere and it can be detected in ... The radioisotope carbon-14 is constantly formed from nitrogen-14 (14N) in the higher atmosphere by incoming cosmic rays which ... Carbon of all types is continually used to form the molecules of the cells of organisms. Doubling of the concentration of 14C ... The radioisotope 14C thus becomes part of the biosphere so that all living organisms contain a certain amount of 14C. Nuclear ...
  https://en.wikipedia.org/wiki/Bomb_pulse
*  Martinostat - Wikipedia
When tagged with the radioisotope carbon-11, martinostat can be used to quantify HDAC in the brain and peripheral organs using ...
  https://en.wikipedia.org/wiki/Martinostat
*  WAY-100,635 - Wikipedia
Labeled with the radioisotope carbon-11 it is used as a radioligand in positron emission tomography (PET) studies to determine ... WAY-100,635 may be labeled in different ways with carbon-11: As [carbonyl-11C]WAY-100,635 or [O-methyl-11C]WAY-100,635, with [ ...
  https://en.wikipedia.org/wiki/WAY-100,635
*  Cosmogenic nuclide - Wikipedia
Some of these radioisotopes are tritium, carbon-14 and phosphorus-32. Certain light (low atomic number) primordial nuclides ( ... Here is a list of radioisotopes formed by the action of cosmic rays; the list also contains the production mode of the isotope ...
  https://en.wikipedia.org/wiki/Cosmogenic_nuclide
*  Environmental radioactivity - Wikipedia
Some of these radioisotopes are tritium, carbon-14 and phosphorus-32. Here is a list of radioisotopes formed by the action of ... of nitrogen-14 forms carbon-14. This radioisotope can be released from the nuclear fuel cycle; this is the radioisotope ... In addition some natural radioisotopes are present. A recent paper reports the levels of long-lived radioisotopes in the ... Just because a radioisotope lands on the surface of the soil, does not mean it will enter the human food chain. After release ...
  https://en.wikipedia.org/wiki/Environmental_radioactivity
*  Harmine - Wikipedia
With the radioisotope carbon-11 harmine is used in positron emission tomography neuroimaging to examine its binding to MAO-A. ... which contains a nucleophilic center at the C-2 carbon of the indole ring due to the adjacent nitrogen atom that enables the ...
  https://en.wikipedia.org/wiki/Harmine
*  Microdosing - Wikipedia
The basic approach is to label a candidate drug using the radioisotope carbon-14,[citation needed] and then administer the ... AMS does not measure the radioactivity of carbon-14 in microdose samples. AMS, like other mass spectrometry methods, measures ...
  https://en.wikipedia.org/wiki/Microdosing
*  Cosmic ray spallation - Wikipedia
Some of the well-known naturally-occurring radioisotopes are tritium, carbon-14 and phosphorus-32. The timing of their ... carbon (carbon-14), chlorine, iodine and neon are formed within solar system materials through cosmic ray spallation, and are ...
  https://en.wikipedia.org/wiki/Cosmic_ray_spallation
*  Radioactive tracer - Wikipedia
Radioisotopes of hydrogen, carbon, phosphorus, sulphur, and iodine have been used extensively to trace the path of biochemical ... 99mTc is a very versatile radioisotope, and is the most commonly used radioisotope tracer in medicine. It is easy to produce in ... The commonly used radioisotopes have short half lives and so do not occur in nature. They are produced by nuclear reactions. ... Instead it is made by neutron irradiation of the isotope 13C which occurs naturally in carbon at about the 1.1% level. 14C has ...
  https://en.wikipedia.org/wiki/Radioactive_tracer
*  Isotopic labeling - Wikipedia
... stable and radioisotopes of carbon respectively, are used for studying turnover of organic compounds and fixation of CO2 by ... labeled with 13 carbon isotope and 70% naturally labeled carbon) or by the specifically labeled carbon positions on the ... The network starts with fructose 6-phosphate (F6P), which has 6 carbon atoms with a label 13C at carbon position 1 and 2. 1,2- ... Assume the original metabolite, a three carbon compound, has the ability to either split into a two carbon metabolite and one ...
  https://en.wikipedia.org/wiki/Isotopic_labeling
*  Ionizing radiation - Wikipedia
Cosmic rays may also produce radioisotopes on Earth (for example, carbon-14), which in turn decay and produce ionizing ... Measurements of carbon-14, can be used to date the remains of long-dead organisms (such as wood that is thousands of years old ... As humans, plants, and animals consume food, air, and water, an inventory of radioisotopes builds up within the organism (see ... Radioisotope Methodology Liebel F, Kaur S, Ruvolo E, Kollias N, Southall MD (2012). "Irradiation of skin with visible light ...
  https://en.wikipedia.org/wiki/Ionizing_radiation
*  Jacob Hooker - Wikipedia
The most common radioisotopes for medical imaging agents, carbon-11 and fluorine-18, have a half-lives of 20.4 and 109.8 ... He has contributed major advances on the entire spectrum of research from fundamental chemistry methodology with radioisotopes ... Hooker and Stephen Buchwald (MIT) developed a strategy for labeling molecules with carbon-11 using cyanide nearly ... valproic acid and 4-phenylbutyric acid measured with carbon-11 labeled analogs by PET". Nuclear Medicine and Biology. 40 (7): ...
  https://en.wikipedia.org/wiki/Jacob_Hooker
*  Carbon group - Wikipedia
... followed by the primordial radioisotope lead-206, the primordial radioisotope lead-207, and the primordial radioisotope lead- ... Carbon also forms three oxides: carbon monoxide, carbon suboxide (C3O2), and carbon dioxide. Carbon forms disulfides and ... Carbon is present in the atmosphere in the form of carbon monoxide, carbon dioxide, and methane. Carbon is a key constituent of ... Carbon is most commonly used in its amorphous form. In this form, carbon is used for steelmaking, as carbon black, as a filling ...
  https://en.wikipedia.org/wiki/Carbon_group
*  David Allen Laird - Wikipedia
... greatest minimum residence time in the soil based on 14C radioisotope dating, and contained carbon most recalcitrant to ... Distinguishing black carbon from biogenic humic substances in soil clay fractions. Geoderma 143: 115-122 Fidel, R.B., Laird, D. ... Carbon sequestration in clay mineral fractions from 14C-labeled plant residues. Soil Science Society of America Journal 67, ... Distinguishing black carbon from biogenic humic substances in soil clay fractions. Geoderma 143: 115-122 Gonzalez, J.M., Laird ...
  https://en.wikipedia.org/wiki/David_Allen_Laird
*  John M. Edmond - Wikipedia
... the oceanic carbon dioxide cycle, trace elements, and radioisotopes. He explored and analyzed water chemistry from environments ...
  https://en.wikipedia.org/wiki/John_M._Edmond
*  Angela N. H. Creager - Wikipedia
The X-10 reactor at Oak Ridge was used to produce radioisotopes such as cobalt-60, phosphorus-32, sulfur-35, and carbon-14. As ... A History of Radioisotopes in Science and Medicine (University of Chicago Press, 2013) on the use of radioisotopes in science ... Natural radioisotopes were used as tracers to track atoms and illuminate biological processes in living creatures and ... Bud, Robert (August 2015). "Angela N. H. Creager, Life Atomic: A History of Radioisotopes in Science and Medicine". Social ...
  https://en.wikipedia.org/wiki/Angela_N._H._Creager
*  Carbon-14 - Wikipedia
"Radiation Safety Manual for Laboratory Users, Appendix B: The Characteristics of Common Radioisotopes" Archived 2013-10-02 at ... There are three naturally occurring isotopes of carbon on Earth: 99% of the carbon is carbon-12, 1% is carbon-13, and carbon-14 ... Carbon-12 and carbon-13 are both stable, while the half-life of carbon-14 is 5,730±40 years. Carbon-14 decays into nitrogen-14 ... the amount of carbon-14 in tooth enamel, or the carbon-14 concentration in the lens of the eye. Carbon-14 is produced in ...
  https://en.wikipedia.org/wiki/Carbon-14
*  Carbon - Wikipedia
Carbon-14 (14C) is a naturally occurring radioisotope, created in the upper atmosphere (lower stratosphere and upper ... Carbon chauvinism Carbon detonation Carbon footprint Carbon star Low-carbon economy Timeline of carbon nanotubes Chemistry ... Carbon can form very long chains of interconnecting carbon-carbon bonds, a property that is called catenation. Carbon-carbon ... Carbon on Britannica Extensive Carbon page at asu.edu Electrochemical uses of carbon Carbon-Super Stuff. Animation with sound ...
  https://en.wikipedia.org/wiki/Carbon
*  WIN-35428 - Wikipedia
Another radioisotope-substituted analog [11C]WIN 35,428 (where the carbon atom of either the N-methyl group, or the methyl from ...
  https://en.wikipedia.org/wiki/WIN-35428
*  Trace radioisotope - Wikipedia
Isotopes of other elements: Tritium Beryllium-7 Beryllium-10 Carbon-14 Fluorine-18 Sodium-22 Sodium-24 Magnesium-28 Silicon-31 ... A trace radioisotope is a radioisotope that occurs naturally in trace amounts (i.e. extremely small). Generally speaking, trace ... Trace radioisotopes are therefore present only because they are continually produced on Earth by natural processes. Natural ... radioisotopes have half-lives that are short in comparison with the age of the Earth, since primordial nuclides tend to occur ...
  https://en.wikipedia.org/wiki/Trace_radioisotope
*  Extinct radionuclide - Wikipedia
Radioisotopes with half-lives shorter than one million years are also produced: for example, carbon-14 by cosmic ray production ... Short-lived radioisotopes that are found in nature are continuously generated or replenished by natural processes, such as ... Uranium-236 is produced in uranium ores by neutrons from other radioisotopes. Iodine-129 is produced from tellurium-130 by ...
  https://en.wikipedia.org/wiki/Extinct_radionuclide