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Reactions of hydrazine with the amidogen radical and atomic hydrogen (open access)

Reactions of hydrazine with the amidogen radical and atomic hydrogen

Article describes how the rate coefficient k1 for NH2 + N2H4 was measured to be (5.4 ± 0.4) × 10−14 cm3 molecule−1 s−1 at 296 K. The authors then describe how a combination of experiment and theory leads to a recommended rate coefficient for hydrogen abstraction of k1 = 6.3 × 10−23 T3.44 exp(+289 K/T) cm3 molecule−1 s−1.
Date: June 7, 2023
Creator: Gao, Yide; Alecu, I. M.; Hashemi, Hamid; Glarborg, Peter & Marshall, Paul
Object Type: Article
System: The UNT Digital Library
Experimental and Modeling Study of Water Time Histories during H2S-N2O Combustion in a Shock Tube (open access)

Experimental and Modeling Study of Water Time Histories during H2S-N2O Combustion in a Shock Tube

Article describes how, in the present study, the water formation was followed by laser absorption with N2O as an oxidant, instead of O2. Three H2S/N2O mixtures diluted in 98% Ar were studied to cover the following range of equivalence ratios: 0.5, 1.0, and 2.0, over a wide range of temperatures (1580–1940 K) around atmospheric pressure.
Date: June 7, 2023
Creator: Cooper, Sean P.; Marshall, Paul; Mathieu, Olivier; Pinzón, Laura T.; Mulvihill, Clayton R. & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Guanidinium-based covalent organic framework membrane for single-acid recovery (open access)

Guanidinium-based covalent organic framework membrane for single-acid recovery

Article discusses how, although acids are extensively used in contemporary industries, time-consuming and environmentally unfriendly processes hinder single-acid recovery from wastes containing various iconic species. The authors rationally designed a membrane with uniform angstrom-sized pore channels and built-in charge-assisted hydrogen bond donors that preferentially conducted HCl while exhibiting negligible conductance for other compounds.
Date: June 21, 2023
Creator: Meng, Qing-Wei; Wu, Shaochun; Liu, Mingjie; Guo, Qing; Xian, Weipeng; Zuo, Xiuhui et al.
Object Type: Article
System: The UNT Digital Library
Bioinspired Synthesis of Silver Nanoparticles for the Remediation of Toxic Pollutants and Enhanced Antibacterial Activity (open access)

Bioinspired Synthesis of Silver Nanoparticles for the Remediation of Toxic Pollutants and Enhanced Antibacterial Activity

Article asserts that this research presents a novel and environmentally friendly approach for the synthesis of multifunctional nanobiocomposites for the efficient removal of toxic heavy metal and dye, as well as the disinfection of wastewater microorganisms. The synthesized bioinspired nanocomposite KAC-CS-AgNPs could be an innovative solution for effective and sustainable wastewater treatment and has great potential for commercial applications.
Date: June 29, 2023
Creator: Mandal, Sujata; Hwang, Sangchul; Marpu, Sreekar B.; Omary, Mohammad A.; Prybutok, Victor R. & Shi, Sheldon
Object Type: Article
System: The UNT Digital Library
Anomalous thermo-osmotic conversion performance of ionic covalent-organic-framework membranes in response to charge variations (open access)

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
Participation of alkali and sulfur in ammonia combustion chemistry: Investigation for ammonia/solid fuel co-firing applications (open access)

Participation of alkali and sulfur in ammonia combustion chemistry: Investigation for ammonia/solid fuel co-firing applications

Article asserts that ammonia (NH3) is a promising carbon-free energy carrier. The authors used experimental characterization and modeling to study the participation of alkali and sulfur species in ammonia conversion in a post-flame environment, focusing on the characteristics of NO emissions and NH3 slip.
Date: June 13, 2022
Creator: Weng, Wubin; Li, Zhongshan; Marshall, Paul & Glarborg, Peter
Object Type: Article
System: The UNT Digital Library
Examining the Viability of the use of Sarocladium zeae as a Biocontrol Agent in the Agricultural Production of Maize (open access)

Examining the Viability of the use of Sarocladium zeae as a Biocontrol Agent in the Agricultural Production of Maize

Data management plan for the grant, "Examining the Viability of the use of Sarocladium zeae as a Biocontrol Agent in the Agricultural Production of Maize." Sarocladium zeae is a fungus that naturally grows within corn and produces pyrrocidines, compounds that inhibit the production of two exogenous threats to maize, aflatoxins and fumonisins. This project aims to identify other natural products that may be produced by S. zeae through genetic modification in native and non-native fungal hosts to ensure there are no toxins present. In doing so, further information will be gathered about the possibility of using S. zeae as a targeted biocontrol agent that protects against exogenous threats while remaining safe for consumption.
Date: 2023-06-01/2026-05-31
Creator: Skellam, Elizabeth & Schoellhorn, Sydney
Object Type: Text
System: The UNT Digital Library
Biomimics of [FeFe]-hydrogenases incorporating redox-active ligands: synthesis, redox properties and spectroelectrochemistry of diiron-dithiolate complexes with ferrocenyl-diphosphines as Fe4S4 surrogates (open access)

Biomimics of [FeFe]-hydrogenases incorporating redox-active ligands: synthesis, redox properties and spectroelectrochemistry of diiron-dithiolate complexes with ferrocenyl-diphosphines as Fe4S4 surrogates

Article prepares and characterizes a small series of new [FeFe]-ase biomimics which contain a ferrocenyl diphosphine as a surrogate for the Fe₄S₄ moiety in the H-cluster of the enzyme. Mechanistic details of both proton reduction and H₂ oxidation have been studied by DFT allowing speculative reaction schemes to be developed.
Date: June 6, 2022
Creator: Orton, Georgia R. F.; Ghosh, Shishir; Alker, Lucy; Sarker, Jagodish C.; Pugh, David; Richmond, Michael G. et al.
Object Type: Article
System: The UNT Digital Library
Empirical Studies on Effect of Low-Level Laser Treatment on Glioblastoma Multiforme in Combination with Ag-PMMA-PAA Nanoparticles: Paired Red Region Optical-Property Treatment Platform (open access)

Empirical Studies on Effect of Low-Level Laser Treatment on Glioblastoma Multiforme in Combination with Ag-PMMA-PAA Nanoparticles: Paired Red Region Optical-Property Treatment Platform

This article investigates low-level laser therapy for brain tumor treatment. The results provide evidence that the paired optical-driven agents provide a tunable platform that can generate significant U251 cell death increase.
Date: June 13, 2022
Creator: Atluri, Rohini; Korir, Daniel K.; Choi, Tae-Youl & Simmons, Denise Perry
Object Type: Article
System: The UNT Digital Library
Nanomagnet-facilitated pharmaco-compatibility for cancer diagnostics: Underlying risks and the emergence of ultrasmall nanomagnets (open access)

Nanomagnet-facilitated pharmaco-compatibility for cancer diagnostics: Underlying risks and the emergence of ultrasmall nanomagnets

Article summarizes various progressive aspects of nanomagnets pertaining to their production with an emphasis on sustainable biomimetic approaches, particularly cancer therapy.
Date: June 27, 2022
Creator: Parimi, Divya S.; Gupta, Yamini; Marpu, Sreekar; Bhatt, Chandra S.; Bollu, Tharun K. & Suresh, Anil K.
Object Type: Article
System: The UNT Digital Library
Atomic layer deposition of BN as a novel capping barrier for B2O3 (open access)

Atomic layer deposition of BN as a novel capping barrier for B2O3

Article demonstrating in situ deposition of BN by sequential BCl₃/NH₃ reactions at 600 K on two different oxidized boron substrates: (a) B₂O₃ deposited using BCl₃/H₂O ALD on Si at 300 K (“B₂O₃/Si”) and (b) a boron-silicon oxide formed by sequential BCl₃/O₂ reactions at 650 K on SiO₂ followed by annealing to 1000 K (“B-Si-oxide”). The data presented demonstrates that ultrathin BN films deposited by BCl₃/NH₃ ALD are promising candidates for passivation of boron oxide used in shallow doping applications.
Date: June 5, 2019
Creator: Kelber, Jeffry A.; Pilli, Aparna; Jones, Jessica; Chugh, Natasha; Pasquale, Frank & LaVoie, Adrien
Object Type: Article
System: The UNT Digital Library
Knock-on synthesis of tritopic calix[4]pyrrole host for enhanced anion interactions (open access)

Knock-on synthesis of tritopic calix[4]pyrrole host for enhanced anion interactions

Author Manuscript version of an article reporting interactions of anionic guests with a tritopic peripherally functionalized conjugated calix[4]pyrrole host (1) prepared using a regioselective synthetic method.
Date: June 4, 2019
Creator: Webre, Whitney A.; D'Souza, Francis; Chahal, Mandeep K.; Labuta, Jan; Březina, Václav; Karr, Paul A. et al.
Object Type: Article
System: The UNT Digital Library
Single-Step Photochemical Formation of Near-Infrared-Absorbing Gold Nanomosaic within PNIPAm Microgels: Candidates for Photothermal Drug Delivery (open access)

Single-Step Photochemical Formation of Near-Infrared-Absorbing Gold Nanomosaic within PNIPAm Microgels: Candidates for Photothermal Drug Delivery

Article demonstrating the dynamic potential for tailoring the surface plasmon resonance (SPR), size, and shapes of gold nanoparticles (AuNPs) starting from an Au(I) precursor, chloro(dimethyl sulfide)gold (I) (Au(Me2S)Cl), in lieu of the conventional Au(III) precursor hydrogen tetrachloroaurate (III) hydrate (HAuCl4). This approach presents a one-step method that permits regulation of an Au(I) precursor to form either visible-absorbing gold nanospheres or near-infrared-window (NIRW)-absorbing anisotropic AuNPs.
Date: May 18, 2020
Creator: Marpu, Sreekar; Kamras, Brian; Nasiri, Nooshin Mirza; Elbjeirami, Oussama; Simmons, Denise Perry; Hu, Zhibing et al.
Object Type: Article
System: The UNT Digital Library
Computational Study of Methane C–H Activation by Main Group and Mixed Main Group–Transition Metal Complexes (open access)

Computational Study of Methane C–H Activation by Main Group and Mixed Main Group–Transition Metal Complexes

This article presents density functional theory (DFT) research where nine different molecules, each with different combinations of A (triel) and E (divalent metal) elements, were reacted to effect methane C–H activation.
Date: May 26, 2020
Creator: Carter, Carly C. & Cundari, Thomas R., 1964-
Object Type: Article
System: The UNT Digital Library
Abraham Solvation Parameter Model: Prediction of Enthalpies of Vaporization and Sublimation of Mono-Methyl Branched Alkanes Using Measured Gas Chromatographic Data (open access)

Abraham Solvation Parameter Model: Prediction of Enthalpies of Vaporization and Sublimation of Mono-Methyl Branched Alkanes Using Measured Gas Chromatographic Data

Article determines Abraham model L solute descriptors for 174 additional mono-methyl branched alkanes based on published linear-programmed gas chromatographic retention indices.
Date: June 18, 2020
Creator: Liu, Grace; Eddula, Shrika; Jiang, Carina; Huang, Jennifer; Tirumala, Priya; Xu, Angelina et al.
Object Type: Article
System: The UNT Digital Library
Self-reporting molecularly imprinted polymer with the covalently immobilized ferrocene redox probe for selective electrochemical sensing of p-synephrine (open access)

Self-reporting molecularly imprinted polymer with the covalently immobilized ferrocene redox probe for selective electrochemical sensing of p-synephrine

Article simultaneously imprinting the p-synephrine 1 template and covalently immobilizing a a ferrocene redox probe in a (bis-bithiophene)-based polymer. The resulting molecularly imprinted polymer (MIP) was deposited on the Pt electrode as a thin film to form a redox self-reporting MIP film-based chemosensor.
Date: June 10, 2021
Creator: Lach, Patrycja; Cieplak, Maciej; Noworyta, Krzysztof R.; Pieta, Piotr; Lisowski, Wojciech; Kalecki, Jakub et al.
Object Type: Article
System: The UNT Digital Library
Early Oxidative Transformations During the Biosynthesis of Terrein and Related Natural Products (open access)

Early Oxidative Transformations During the Biosynthesis of Terrein and Related Natural Products

This article combines heterologous expression and in vitro studies to show that the flavin-dependent monooxygenase (FMO) TerC catalyzes the initial oxidative decarboxylation of 6-HM. The results demonstrate that the biosynthetic pathways of terrein and related(polychlorinated) congeners diverge after oxidative decarboxylation of the lactone precursor that is catalyzed by a conserved FMO and further indicate that early dehydration of the side chain is an essential step.
Date: June 11, 2021
Creator: Kahlert, Lukas; Bernardi, Darlon; Hauser, Maurice; Lóca, Laura P.; Berlinck, Roberto G. S.; Skellam, Elizabeth et al.
Object Type: Article
System: The UNT Digital Library
Self-reporting molecularly imprinted polymer with the covalently immobilized ferrocene redox probe for selective electrochemical sensing of p-synephrine (open access)

Self-reporting molecularly imprinted polymer with the covalently immobilized ferrocene redox probe for selective electrochemical sensing of p-synephrine

This article uses a molecularly imprinted polymer (MIP) to form a redox self-reporting MIP film-based chemosensor applied for p-synephrine determination.
Date: June 10, 2021
Creator: Lach, Patrycja; Cieplak, Maciej; Noworyta, K.; Pieta, Piotr; Lisowski, Wojciech; Kalecki, Jakub et al.
Object Type: Article
System: The UNT Digital Library
Towards large scale hybrid QM/MM dynamics of complex systems with advanced point dipole polarizable embeddings (open access)

Towards large scale hybrid QM/MM dynamics of complex systems with advanced point dipole polarizable embeddings

Article presents a general route to hybrid Quantum Mechanics/Molecular Mechanics (QM/MM) Molecular Dynamics for complex systems using a polarizable embedding.
Date: June 11, 2019
Creator: Loco, Daniele; Lagardère, Louis; Cisneros, Gerardo Andrés; Scalmani, Giovanni; Frisch, Michael; Lipparini, Filippo et al.
Object Type: Article
System: The UNT Digital Library
Surface Activation and Pretreatments for Biocompatible Metals and Alloys Used in Biomedical Applications (open access)

Surface Activation and Pretreatments for Biocompatible Metals and Alloys Used in Biomedical Applications

Article describes the main surface activation and pretreatment techniques for substrates such as titanium and its alloys, stainless steel, magnesium alloys, and CoCrMo alloys.
Date: June 2, 2019
Creator: Huynh, Vivian; Ngo, Ngan K. & Golden, Teresa Diane, 1963-
Object Type: Article
System: The UNT Digital Library
Further Analysis on Solubility Measurement and Thermodynamic  Modeling of Benzoic Acid in Monosolvents and Binary Mixtures (open access)

Further Analysis on Solubility Measurement and Thermodynamic Modeling of Benzoic Acid in Monosolvents and Binary Mixtures

Article discussing further analyses of the recent report (by Sandeepa et al.) on the solubility of benzoic acid in six monosolvents (i.e. tributyl phosphate, diacetone alcohol, methyl-n-propyl ketone, methyl acetate, amyl acetate, and isooctane) and five binary systems (i.e. ethanol + hexane, isopropyl alcohol + hexane and chloroform + hexane, acetone + hexane, and acetone + water) along with some numerical analyses. The reported calculations have been reanalyzed based on combined nearly ideal binary solvent/Redlich-Kister, the modified Wilson model, general single model, Jouyban–Acree model and Jouyban–Acree–van’t Hoff model. The investigated models provide good estimation of the solubility behavior of benzoic acid in the binary solvent mixtures at various temperatures.
Date: June 30, 2019
Creator: Jouyban, Abolghasem; Rahimpour, Elaheh & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library
Simultaneous Direct Holographic Fabrication of Photonic Cavity and Graded Photonic Lattice With Dual Periodicity, Dual Basis, and Dual Symmetry (open access)

Simultaneous Direct Holographic Fabrication of Photonic Cavity and Graded Photonic Lattice With Dual Periodicity, Dual Basis, and Dual Symmetry

This article demonstrates the digital, holographic fabrication of graded, super-basis photonic lattices with dual periodicity, dual basis, and dual symmetry.
Date: June 15, 2017
Creator: Lowell, David; Lutkenhaus, Jeffrey; George, David; Philipose, Usha; Chen, Banglin & Lin, Yuankun
Object Type: Article
System: The UNT Digital Library
Shining Light on Chitosan: A Review on the Usage of Chitosan for Photonics and Nanomaterials Research (open access)

Shining Light on Chitosan: A Review on the Usage of Chitosan for Photonics and Nanomaterials Research

This article highlights the different molecular-nano systems that are prepared or stabilized using the Chitosan polymer.
Date: June 17, 2018
Creator: Marpu, Sreekar & Benton, Erin N.
Object Type: Article
System: The UNT Digital Library
Solubility and Apparent Specific Volume of Sucrose in Some Aqueous Polyethylene Glycol Mixtures at 298.2 K (open access)

Solubility and Apparent Specific Volume of Sucrose in Some Aqueous Polyethylene Glycol Mixtures at 298.2 K

This article determines and correlates the equilibrium solubility of sucrose in {PEG 200 (or 400) + water} mixtures at 298.2 K.
Date: June 20, 2018
Creator: Tinjacá, Darío; Muñoz, María M.; Rahimpour, Elaheh; Jouyban, Abolghasem; Martínez, Fleming & Acree, William E. (William Eugene)
Object Type: Article
System: The UNT Digital Library