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Reversed Crystal Growth of RHO Zeolitic Imidazolate Framework (ZIF)

18-Nov-2015 | Katherine Self, Michael Telfer, Heather F. Greer, Wuzong Zhou, Chemistry - A European Journal, 2015

Abstract RHO zeolitic imidazolate framework (ZIF), Zn1.33(O.OH)0.33(nim)1.167(pur), crystals with a rhombic dodecahedral morphology were synthesized by a solvothermal process. The growth of the crystals was studied over time using scanning electron microscopy (SEM), transmission electron ...


Multinuclear Magnetic Resonance Investigation of Crystalline Alkali Molybdates

05-Oct-2015 | John E. C. Wren; Brandon J. Greer; Vladimir K. Michaelis; Carolyn S. Higman; Scott Kroeker, Inorganic Chemistry, 2015

A variety of crystalline alkali molybdate phases are characterized by 23Na, 133Cs, and 95Mo magic-angle-spinning nuclear magnetic resonance (MAS NMR) to provide spectroscopic handles for studies of devitrification products in borosilicate nuclear waste glasses. The NMR parameters obtained from ...


[Report] Fractal atomic-level percolation in metallic glasses

18-Sep-2015 | David Z. Chen; Crystal Y. Shi; Qi An; Qiaoshi Zeng; Wendy L. Mao; William A. Goddard III; Julia R. Greer, Science , 2015

and that the percolating cluster becomes rigid at the glass transition temperature. Authors: David Z. Chen, Crystal Y. Shi, Qi An, Qiaoshi Zeng, Wendy L. Mao, William A. Goddard, Julia R. Greer...


Resilient 3D hierarchical architected metamaterials [Engineering]

15-Sep-2015 | Lucas R. Meza; Alex J. Zelhofer; Nigel Clarke; Arturo J. Mateos; Dennis M. Kochmann; Julia R. Greer, Proceedings of the National Academy of Sciences current issue, 2015

Hierarchically designed structures with architectural features that span across multiple length scales are found in numerous hard biomaterials, like bone, wood, and glass sponge skeletons, as well as manmade structures, like the Eiffel Tower. It has been hypothesized that their mechanical ...


Size Effect Suppresses Brittle Failure in Hollow Cu60Zr40 Metallic Glass Nanolattices Deformed at Cryogenic Temperatures

17-Aug-2015 | Seok-Woo Lee; Mehdi Jafary-Zadeh; David Z. Chen; Yong-Wei Zhang; Julia R. Greer, Nano Letters, 2015

Nano Letters DOI: 10.1021/acs.nanolett.5b01034


Synthesis and Antiproliferative Properties of a New Ceramide Analog of Varacin

09-Aug-2015 | Author(s): Adaickapillai Mahendran, Ashwini A. Ghogare, Robert Bittman, Gilbert Arthur, Alexander Greer, Chemistry and Physics of Lipids, 2015

Greer A benzopentasulfane was synthesized in 8 steps with a ceramide attached through an amide bond to the 7-position of the heterocycle structure. The anticancer activity of this synthetic ceramide...


Pervaporation of organic compounds from aqueous mixtures using polydimethylsiloxane‐containing block copolymer membranes

07-Aug-2015 | Douglas R. Greer, A. Evren Ozcam, Nitash P. Balsara, AIChE Journal, 2015

Pervaporation of aqueous mixtures of ethanol, acetone, butanol, isobutanol, and furfural through polystyrene‐b‐polydimethylsiloxane‐b‐polystyrene (SDS) triblock copolymer membranes is reported. These mixtures are important for biofuel production from lignocellulosic feedstocks. Feedstock ...


Fragile‐to‐Strong Crossover in Supercooled Liquid Ag‐In‐Sb‐Te Studied by Ultrafast Calorimetry

02-Jul-2015 | Jiri Orava, Daniel W. Hewak, A. Lindsay Greer, Advanced Functional Materials, 2015

Phase‐change random‐access memory relies on the reversible crystalline‐glassy phase change in chalcogenide thin films. In this application, the speed of crystallization is critical for device performance: there is a need to combine ultrafast crystallization for switching at high temperature with ...


Mechanism of Photochemical O-Atom Exchange in Nitrosamines with Molecular Oxygen

05-Jun-2015 | Marilene Silva Oliveira; Ashwini A. Ghogare; Inna Abramova; Edyta M. Greer; Fernanda Manso Prado; Paolo Di Mascio; A ..., The Journal of Organic Chemistry, 2015

The detection of an oxygen-atom photoexchange process of N-nitrosamines is reported. The photolysis of four nitrosamines (N-nitrosodiphenylamine 1, N-nitroso-N-methylaniline 2, N-butyl-N-(4-hydroxybutyl)nitrosamine 3, and N-nitrosodiethylamine 4) with ultraviolet light was examined in an ...


New horizons for glass formation and stability

01-Jun-2015 | A. Lindsay Greer, Nature Materials, 2015

Nature Materials 14, 542 (2015). doi:10.1038/nmat4292 Author: A. Lindsay Greer It has long been thought impossible for pure metals to form stable glasses. Recent work supports...


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