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The University of Tennessee

3 ARTICLES PUBLISHED IN JoVE

JoVE Journal

Sulfate Separation by Selective Crystallization with a Bis-iminoguanidinium Ligand

Charles A. Seipp^1,2, Neil J. Williams^1,3, Radu Custelcean¹

¹Chemical Sciences Division, Oak Ridge National Laboratory, ²Department of Chemistry, The University of Texas at Austin, ³Department of Chemistry, The University of Tennessee

A protocol for in situ aqueous synthesis of a bis(iminoguanidinium) ligand and its utilization in selective separation of sulfate is presented.

Biology

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor

Hassina Z. Bilheux^*1, Maria Cekanova^*2,3,4, Jeffrey M. Warren^*5, Matthew J. Meagher⁶, Ryan D. Ross⁶, Jean C. Bilheux^1,7, Singanallur Venkatakrishnan⁸, Jiao Y.Y. Lin^1,9, Yuxuan Zhang¹, Matthew R. Pearson^9,10, Erik Stringfellow¹

¹Neutron Scattering Division, Oak Ridge National Laboratory, ²College of Veterinary Medicine, The University of Tennessee, ³UT-ORNL Graduate School of Genome, Science and Technology, The University of Tennessee, ⁴Integrity Laboratories, ⁵Environmental Sciences Division, Oak Ridge National Laboratory, ⁶Department of Cell & Molecular Medicine, Rush Medical College, Rush University, ⁷Computer Science and Mathematics Division, Oak Ridge National Laboratory, ⁸Electrification and Energy Infrastructures Division, Oak Ridge National Laboratory, ⁹Now at Second Target Station Project, Oak Ridge National Laboratory, ¹⁰Neutron Technologies Division, Oak Ridge National Laboratory

This manuscript describes a protocol for neutron radiography and computed tomography of biological samples using a High Flux Isotope Reactor (HFIR) CG-1D beamline to measure a metal implant in a rat femur, a mouse lung, and an herbaceous plant root/soil system.

Engineering

Forming Micro-and Nano-Plastics from Agricultural Plastic Films for Employment in Fundamental Research Studies

Anton F. Astner¹, Douglas G. Hayes¹, Hugh M. O'Neill², Barbara R. Evans³, Sai Venkatesh Pingali², Volker S. Urban², Timothy M. Young⁴

¹Department of Biosystems Engineering and Soil Science, University of Tennessee, ²Neutron Scattering, Oak Ridge National Laboratory, ³Chemical Sciences Divisions, Oak Ridge National Laboratory, ⁴Center for Renewable Carbon, The University of Tennessee

We show the formation and dimensional characterization of micro- and nanoplastics (MPs and NPs, respectively) using a stepwise process of mechanical milling, grinding, and imaging analysis.