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      Harvesting 62Zn from an aqueous cocktail at the NSCL

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          Abstract

          The radionuclide 62Zn was obtained by “isotope harvesting” and separated from other co-produced species. The principle of a medical radionuclide generator was demonstrated by isolating pure 62Cu, which is generated by the decay of its parent 62Zn.

          Abstract

          “Isotope harvesting” is a technique that offers access to exotic radionuclides created as by-products during nuclear science research. Ongoing exploratory work at the National Superconducting Cyclotron Laboratory (NSCL) is directed towards the production and extraction of rare radionuclides from a flowing-water target and intends to pave the way for future harvesting efforts at the upcoming Facility for Rare Isotope Beams (FRIB). Here we present the collection of 62Zn from an aqueous matrix irradiated with a 150 MeV per nucleon 78Kr beam, while synergistically capturing other gaseous reaction products. In addition to the production rate for 62Zn (9.08(30) × 10 −5 62Zn per incoming 78Kr), the rates of formation for several other radionuclides were determined as well. The purification of 62Zn from a large number of co-produced radionuclides was performed by anion exchange chromatography, allowing the isolation of 80.5(5.2)% of the generated 62Zn. With the decay of 62Zn the radioactive daughter 62Cu is generated, and with the isolation of pure 62Cu eluate, the principle of a medical radionuclide generator could be demonstrated. To illustrate the applicability of the obtained 62Zn, the isolated product was used in free and DTPA-labelled form in a proof of principle plant uptake study with garden cress employing phosphor imaging for visualization.

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          Features of Particle and Heavy Ion Transport code System (PHITS) version 3.02

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            Mechanism of Zinc absorption in plants: uptake, transport, translocation and accumulation

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              Zinc - an indispensable micronutrient.

              Availability of Zn to plant is hampered by its immobile nature and adverse soil conditions. Thus, Zn deficiency is observed even though high amount is available in soil. Root-shoot barrier, a major controller of zinc transport in plant is highly affected by changes in the anatomical structure of conducting tissue and adverse soil conditions like pH, clay content, calcium carbonate content, etc. Zn deficiency results in severe yield losses and in acute cases plant death. Zn deficiency in edible plant parts results in micronutrient malnutrition leading to stunted growth and improper sexual development in humans. To overcome this problem several strategies have been used to enrich Zn availability in edible plant parts, including nutrient management, biotechnological tools, and classical and molecular breeding approaches.
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                Author and article information

                Contributors
                (View ORCID Profile)
                Journal
                NJCHE5
                New Journal of Chemistry
                New J. Chem.
                Royal Society of Chemistry (RSC)
                1144-0546
                1369-9261
                December 15 2020
                2020
                : 44
                : 47
                : 20861-20870
                Affiliations
                [1 ]Department of Chemistry
                [2 ]Michigan State University
                [3 ]East Lansing
                [4 ]USA
                [5 ]National Superconducting Cyclotron Laboratory
                Article
                10.1039/D0NJ04411C
                e989fd41-ba16-4c67-8019-f0c41e2650d3
                © 2020

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