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1,036 Matching Results
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Oxygen atom transfer catalysis by dioxidomolybdenum(VI) complexes of pyridyl aminophenolate ligands
This article synthesizes and characterizes a series of new cationic dioxidomolybdenum(VI) complexes [MoO₂(Lⁿ)]PF₆ (2–5) with the tripodal tetradentate pyridyl aminophenolate ligands HL²-HL⁵.
Date:
April 21, 2021
Creator:
Hossain, Kamal; Schachner, Jörg A.; Haukka, Matti; Richmond, Michael G.; Mösch-Zanetti, Nadia C.; Lehtonen, Ari et al.
Object Type:
Article
System:
The UNT Digital Library
Reference materials for phase equilibrium studies. 1. Liquid–liquid equilibria (IUPAC Technical Report)
This article is the first of three projected IUPAC Technical Reports resulting from IUPAC Project 2011-037-2-100 (Reference Materials for Phase Equilibrium Studies). This report proposes seven systems for liquid–liquid equilibrium studies, covering the four most common categories of binary mixtures: aqueous systems of moderate solubility, non-aqueous systems, systems with low solubility, and systems with ionic liquids.
Date:
July 8, 2021
Creator:
Bazyleva, Ala; Acree, William E. (William Eugene); Chirico, Robert D.; Diky, Vladimir; Hefter, Glenn T.; Jacquemin, Johan et al.
Object Type:
Article
System:
The UNT Digital Library
Revision and Extension of a Generally Applicable Group-Additivity Method for the Calculation of the Standard Heat of Combustion and Formation of Organic Molecules
Article presenting the calculation of the heats of combustion ΔH°c and formation ΔH°f of organic molecules at standard conditions using a commonly applicable computer algorithm based on the group-additivity method. This work is a continuation and extension of an earlier publication.
Date:
October 10, 2021
Creator:
Naef, Rudolf & Acree, William E. (William Eugene)
Object Type:
Article
System:
The UNT Digital Library
Efficient separation of xylene isomers by a guest-responsive metal–organic framework with rotational anionic sites
Article demonstrating the adaptively molecular discrimination of xylene isomers by employing a NbOF52−-pillared metal–organic framework (NbOFFIVE-bpy-Ni, also referred to as ZU-61) with rotational anionic sites.
Date:
October 28, 2020
Creator:
Cui, Xili; Niu, Zheng; Shan, Chuan; Yang, Lifeng; Hu, Jianbo; Wang, Qingju et al.
Object Type:
Article
System:
The UNT Digital Library
AFLOW-QHA3P: Robust and automated method to compute thermodynamic properties of solids
Article introducing the quasiharmonic approximation three-phonon method to calculate the thermodynamic properties of both nonmetallic and metallic compounds. This study demonstrates that QHA3P is an ideal framework for the high-throughput prediction of finite-temperature material properties, combining the accuracy of QHA with the computational efficiency of SC-QHA.
Date:
July 8, 2019
Creator:
Nath, Pinku; Usanmaz, Demet; Hicks, David; Oses, Corey; Fornari, Marco; Buongiorno Nardelli, Marco et al.
Object Type:
Article
System:
The UNT Digital Library
Metallic nanoparticle production and exposure/deposition system for toxicological research applications using zebrafish
Article presents a method that provides a novel way to synthesize NPs and expose biological organisms for various toxicological analysis.
Date:
September 3, 2020
Creator:
Nayek, Subhayu; Aguilar, Roberto; Juel, Lauren A. & Verbeck, Guido F.
Object Type:
Article
System:
The UNT Digital Library
Triplet photosensitizer-nanotube conjugates: synthesis, characterization and photochemistry of charge stabilizing, palladium porphyrin/carbon nanotube conjugates
Author Manuscript version of an article investigating the ability of a triplet photosensitizer to generate long-lived charge separated states, in contrast to traditionally used singlet photosensitizers, in covalently functionalized single-walled carbon nanotube hybrids.
Date:
April 21, 2020
Creator:
Arellano, Luis M.; Gobeze, Habtom B.; Gómez-Escalonilla, María J.; Fierro, Jose Luis G.; D'Souza, Francis & Langa, Fernando
Object Type:
Article
System:
The UNT Digital Library
Role of quantum confinement and interlayer coupling in CrI3-graphene magnetic tunnel junctions
Article presents a combination of first principles and quantum ballistic transport calculations to shed important insights from an atomistic viewpoint on the underlying mechanisms governing spin transport in graphene/ CrI₃ junctions.
Date:
May 29, 2020
Creator:
Buongiorno Nardelli, Marco; Heath, Jonathan J.; Costa, Marcio & Kuroda, Marcelo A.
Object Type:
Article
System:
The UNT Digital Library
A Statistical Analysis of Trans-Resveratrol in Grape Cane From Ten Varieties of Cultivated Wine Grapes (Vitis Spp.)
This article isolated resveratrol by a non-optimized protocol from ten varieties of grape cane grown in central Texas, USA. A statistical grouping of the ten varieties suggests that Norton, Blanca du bois, Cabernet Sauvignon, and Lenoir are the best candidates to use for further resveratrol isolation.
Date:
August 22, 2020
Creator:
Rathburn, Harold; Bell, Peter; Cook, Scott; Mayberry, Darrell D.; Geye, Emryse & Goodrich, Ryann
Object Type:
Article
System:
The UNT Digital Library
In vitro anti-diabetic effects and phytochemical profiling of novel varieties of Cinnamomum zeylanicum (L.) extracts
Article exploring the use of pressured and decoctions water to extract anti-diabetic phytochemicals from cinnamon. The extensive metabolite profiling of novel SW and SG extracts and comparison of that with commercially available CC are reported for the first time in this study. The C. zeylanicum, SW accession holds some promise in the management of diabetes.
Date:
April 27, 2020
Creator:
Wariyapperuma, W.A. Niroshani M.; Kannangara, Sagarika; Wijayasinghe, Yasanandana S.; Subramanium, Sri & Jayawardena, Bimali
Object Type:
Article
System:
The UNT Digital Library
Protein Determination with Molecularly Imprinted Polymer Recognition Combined with Birefringence Liquid Crystal Detection
Article integrating a molecularly imprinted polymer (MIP) film recognition unit with a liquid crystal (LC) in an optical cell transducer to incur the selectivity of liquid crystal-based sensors.
Date:
August 20, 2020
Creator:
Cieplak, Maciej; Węgłowski, Rafał; Iskierko, Z.; Węgłowska, Dorota; Sharma, Piyush S.; Noworyta, Krzysztof R. et al.
Object Type:
Article
System:
The UNT Digital Library
[Examining the Role of Nanomaterials and Optical Sensors for Genomics Research]
This presentation introduces the possibility of using nanomaterials and optically active sensors in genomics research. The presenter shares the history and applications of nanomaterials, introduces their research into optical-luminescent sensors and optically active plasmonic nanoparticles, and explores how they might be used in genomics. It was presented at the UNT Transdisciplinary Conference on Ancestral Genomics Research which was held virtually on November 20-21, 2020.
Date:
November 21, 2020
Creator:
Marpu, Sreekar
Object Type:
Video
System:
The UNT Digital Library
Improving Reliability and Failure Prevention in Automobile Microelectronics
Video from the Fall 2018 3 Minute Thesis (3MT®) Final Competition. In this video, Muthappan Asokan presents his research methods, findings, and its significance in non-technical language.
Date:
November 17, 2018
Creator:
Asokan, Muthappan
Object Type:
Video
System:
The UNT Digital Library
Rediscovery of the Elements: Daniel Rutherford, Nitrogen, and the Demise of Phlogiston
Article describing Daniel Rutherford's discovery of nitrogen. The article also details the work of other scientists revolving around the discovery of nitrogen.
Date:
Spring 2015
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Bad Pyrmont Spa
Photo depicts the Bad Pyrmont Spa in western Germany which is known for its therapeutic baths and vapor cave. The paragraph on the bottom of page 70 gives details about the photo and the spa.
Date:
Winter 2015
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Rediscovery of the Elements: The Rare Earths - The Beginnings
This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the article on pages 40-45 of the journal. A description of the photo on the cover of the journal can be found on page 38.
Date:
Autumn 2015
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Rediscovery of the Elements: The Rare Earths - The Confusing Years
This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Date:
Winter 2015
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
20 Mule Team
This photograph from the front cover of an issue of the Hexagon Journal displays the mock 20 mule team that stands outside of the Rio Tinto Borax Museum in Boron, California. The mule team depicts the original mode used to transport the chemical compound, borax, out of Death Valley between 1883 and 1888. A description of the photograph is shown on page 23 of the journal.
Date:
Summer 2015
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Clipping
System:
The UNT Digital Library
Rediscovery of the Elements: Sir Humphry Davy and the Alkalis
Article provides information on the history of alkalis, particularly discoveries associated with potassium and sodium. The article also gives information on Humphry Davy, the first person to prepare alkalis in elemental form.
Date:
Summer 2015
Creator:
Marshall, James L., 1940- & Marshall, Virginia R.
Object Type:
Article
System:
The UNT Digital Library
Three Component Cascade Reaction of Cyclohexanones, Aryl Amines, and Benzoylmethylene Malonates: Cooperative Enamine-Brønsted Acid Approach to Tetrahydroindoles
Article discusses how a three-component cascade reaction comprising cyclic ketones, arylamines, and benzoylmethylene malonates has been developed to access 4,5,6,7-tetrahydro-1H-indoles. Furthermore, the reaction was achieved through cooperative enamine-Brønsted catalysis in high yields with wide substrate scopes.
Date:
November 30, 2022
Creator:
Vasquez, Jose Cortes; Alharbi, Waad S.; Davis, Jacqkis; Moore, Alexia; Nesterov, Vladimir N.; Cundari, Thomas R., 1964- et al.
Object Type:
Article
System:
The UNT Digital Library
Unsymmetric Pentacene- and Pentacenequinone-Fused Porphyrins: Understanding the Effect of Cross- and Linear-Conjugation
Article says that unsymmetric pentacenequinone-fused (cross-conjugated) and pentacene-fused (linear-conjugated) porphyrins were designed and synthesized. This work provides important and useful information on guiding new material designs.
Date:
July 29, 2022
Creator:
Moss, Austen; Nevonen, Dustin E.; Hu, Yi; Nesterov, Vladimir N.; Nemykin, Victor N. & Wang, Hong
Object Type:
Article
System:
The UNT Digital Library
Reweighted Manifold Learning of Collective Variables from Enhanced Sampling Simulations
Article provides a general reweighting framework based on anisotropic diffusion maps for manifold learning that takes into account that the learning data set is sampled from a biased probability distribution. The authors show that their proposed framework can be used in many manifold learning techniques on data from both standard and enhanced sampling simulations.
Date:
November 11, 2022
Creator:
Rydzewski, Jakub; Chen, Ming; Ghosh, Tushar K. & Valsson, Omar
Object Type:
Article
System:
The UNT Digital Library
The Crucial Role of Solvation Forces in the Steric Stabilization of Nanoplatelets
Article says that the steric stability of inorganic colloidal particles in an apolar solvent is usually described in terms of the balance between three contributions: the van der Waals attraction, the free energy of mixing, and the ligand compression. The authors demonstrate that for sufficiently large nanoplatelets, solvation forces are proportional to the interacting facet area, and their strength is intrinsically tied to the softness of the ligand shell.
Date:
December 9, 2022
Creator:
Petersen, Nanning; Girard, Martin; Riedinger, Andreas & Valsson, Omar
Object Type:
Article
System:
The UNT Digital Library
Anomalous thermo-osmotic conversion performance of ionic covalent-organic-framework membranes in response to charge variations
Authors of the article systematically investigated how the membrane charge populations affect permselectivity by decoupling their effects from the impact of the pore structure using a multivariate strategy for constructing covalent-organic-framework membranes. The complex interplay between pore-pore interactions in response to charge variations for ion transport across the upscaled nanoporous membranes helps explain the obtained results. This study has far-reaching implications for the rational design of ionic membranes to augment energy extraction rather than intuitively focusing on achieving high densities.
Date:
June 13, 2022
Creator:
Xian, Weipeng; Zuo, Xiuhui; Zhu, Changjia; Guo, Qing; Meng, Qing-Wei; Zhu, Xincheng et al.
Object Type:
Article
System:
The UNT Digital Library