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Automated Approach to In Vitro Image-Guided Photothermal Therapy with Top-Down and Bottom-Up-Synthesized Graphene Quantum Dots (open access)

Automated Approach to In Vitro Image-Guided Photothermal Therapy with Top-Down and Bottom-Up-Synthesized Graphene Quantum Dots

Article discusses how, based on recent studies, graphene quantum dots (GQDs) are expected to possess advantageous photothermal properties and facilitate fluorescence image-tracking in the visible and near-infrared (NIR), while surpassing other graphene-based materials in their biocompatibility. The combination of the photothermal and imaging modalities tested in vitro makes the GQDs developed in this work prospective agents for cancer theragnostics.
Date: February 22, 2023
Creator: Lee, Bong; Stokes, Gretel A.; Valimukhametova, Alina; Nguyen, Steven; Gonzalez-Rodriguez, Roberto; Bhaloo, Adam et al.
Object Type: Article
System: The UNT Digital Library
Analyzing the Bolometric Performance of Vanadium Oxide Thin Films Modified by Carbon Nanotube Dispersions (open access)

Analyzing the Bolometric Performance of Vanadium Oxide Thin Films Modified by Carbon Nanotube Dispersions

Article investigates the influence of carbon nanotube (CNT) dispersions on the electrical properties and noise signal amplitude of 𝑉𝑂𝑥 films. The results presented in this work provide a better understanding of 𝑉𝑂𝑥-based composites, thereby enabling the development of new, versatile and functional materials for device applications.
Date: February 12, 2023
Creator: Philipose, Usha; Littler, Chris; Jiang, Yan; Naciri, Alia; Harcrow, Michael & Syllaios, A. J.
Object Type: Article
System: The UNT Digital Library
Evolutionary models of lateralization: Steps toward stigmergy? (open access)

Evolutionary models of lateralization: Steps toward stigmergy?

Article discusses an interesting approach to accounting for brain and behavioral asymmetry based on competition and cooperation in phenotypically asymmetric individuals. The model in question shows, in an almost fully analytical way, that under proper conditions, there exists an unequal number of equilibrium of left-and right-lateralized individuals.
Date: February 2, 2023
Creator: Tonello, Lucio & Vallortigara, Giorgio
Object Type: Article
System: The UNT Digital Library
Two-Layer High-Throughput: Effective Mass Calculations Including Warping (open access)

Two-Layer High-Throughput: Effective Mass Calculations Including Warping

Article performing and analyzing two-layer high-throughput calculations.
Date: February 26, 2022
Creator: Supka, Andrew; Mecholsky, Nicholas A.; Buongiorno Nardelli, Marco; Curtarolo, Stefano & Fornari, Marco
Object Type: Article
System: The UNT Digital Library
Disentangling Orbital and Valley Hall Effects in Bilayers of Transition Metal Dichalcogenides (open access)

Disentangling Orbital and Valley Hall Effects in Bilayers of Transition Metal Dichalcogenides

This article shows that a bilayer of 2H-MoS₂ is an orbital Hall insulator that exhibits a sizeable orbital Hall effect in the absence of both spin and valley Hall effects. The results are based on density functional theory and low-energy effective model calculations and strongly suggest that bilayers of TMDs are highly suitable platforms for direct observation of the orbital Hall insulating phase in two-dimensional materials.
Date: February 5, 2021
Creator: Cysne, Tarik P.; Costa, Marcio; Canonico, Luis M.; Buongiorno Nardelli, Marco; Muniz, R. B. & Rappoport, Tatiana G.
Object Type: Article
System: The UNT Digital Library
Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment (open access)

Development of a Thulium Fiber Laser for an Atomic Spectroscopy Experiment

This article is a simplified analysis of a convenient thulium fiber laser source with 3 W of output power operating at a wavelength of 2059 nm with a slope efficiency of 49% with respect to input pump power and 60% with respect to absorbed pump power. The laser was applied in an atomic helium spectroscopy experiment to quench ³He (2058.63 nm) and ⁴He (2058.69 nm) meta-stable singlets (2¹S0), allowing for further investigation of the helium fine structure.
Date: February 15, 2020
Creator: Currey, Ronnie; Khademian, Ali & Shiner, David
Object Type: Article
System: The UNT Digital Library
An Extreme X-Ray Variability Event of a Weak-line Quasar (open access)

An Extreme X-Ray Variability Event of a Weak-line Quasar

Article reports the discovery of an extreme X-ray flux rise (by a factor of ≳20) of the weak-line quasar Sloan Digital Sky Survey (SDSS) J153913.47+395423.4 (hereafter SDSS J1539+3954) at z = 1.935. SDSS J1539+3954 is the most-luminous object among radio-quiet type 1 active galactic nuclei (AGNs) where such dramatic X-ray variability has been observed.
Date: February 3, 2020
Creator: Ni, Q.; Brandt, W. N.; Yi, W.; Luo, B.; Timlin, J. D., III; Hall, P. B. et al.
Object Type: Article
System: The UNT Digital Library
Mechanism for etching of exfoliated graphene on substrates by low-energy electron irradiation from helium plasma electron sources (open access)

Mechanism for etching of exfoliated graphene on substrates by low-energy electron irradiation from helium plasma electron sources

Article investigating the mechanism for etching of exfoliated graphene multilayers on SiO₂ by low-energy (50 eV) electron irradiation using He plasma systems for electron sources.
Date: February 26, 2019
Creator: Femi-Oyetoro, John D.; Yao, Kevin; Tang, Runtian; Ecton, Philip A.; Roccapriore, Kevin M.; Mhlanga, Ashley et al.
Object Type: Article
System: The UNT Digital Library
Fe/GeTe(111) heterostructures as an avenue towards spintronics based on ferroelectric Rashba semiconductors (open access)

Fe/GeTe(111) heterostructures as an avenue towards spintronics based on ferroelectric Rashba semiconductors

Article investigating the electronic structure of Fe/GeTe(111), a prototypical ferromagnetic/Rashba-ferroelectric interface, by performing density functional theory and Green's functions calculations complemented by x-ray photoemission spectroscopy.
Date: February 19, 2019
Creator: Sławińska, Jagoda; Di Sante, Domenico; Varotto, Sara; Rinaldi, Christian & Picozzi, Silvia
Object Type: Article
System: The UNT Digital Library
New mechanism of plasmons specific for spin-polarized nanoparticles (open access)

New mechanism of plasmons specific for spin-polarized nanoparticles

This article experimentally shows that Co nanoparticles with a single-domain crystal structure support a plasmon resonance at approximately 280 nm with better quality than gold nanoparticle resonance in the visible. The magnetic nature of these nanoparticles suggests a new type of these plasmons.
Date: March 27, 2018
Creator: Bhatta, Hari L.; Aliev, Abil E. & Drachev, Vladimir P.
Object Type: Article
System: The UNT Digital Library
Electrically tunable, sustainable, and erasable broadband light absorption in graphene sandwiched in Al2O3 oxides (open access)

Electrically tunable, sustainable, and erasable broadband light absorption in graphene sandwiched in Al2O3 oxides

This article is a study of graphene as an electrically tunable material for switchable devices. Graphene is obtained from graphene oxide during the atomic layer deposition of Al2O3, as confirmed by Raman spectrum.
Date: November 15, 2018
Creator: Adewole, Murthada; Cui, Jingbiao; Lowell, David; Hassan, Safaa; Jiang, Yan; Singh, Abhay et al.
Object Type: Article
System: The UNT Digital Library
Giant spin Hall effect in two-dimensional monochalcogenides (open access)

Giant spin Hall effect in two-dimensional monochalcogenides

This article, using calculations from first principles, reveals for the first time giant intrinsic spin Hall conductivities (SHC) in these materials. In particular, the article shows that the SHC resonances can be easily tuned by combination of strain and doping and, in some cases, strain can be used to induce semiconductor to metal transition that makes a giant spin Hall effect possible even in absence of doping.
Date: October 30, 2018
Creator: Sławińska, Jagoda; Cerasoli, Frank T.; Wang, Haihang; Postorino, Sara; Supka, Andrew; Curtarolo, Stefano et al.
Object Type: Article
System: The UNT Digital Library
Gold Nanoparticles-enabled Efficient Dual Delivery of Anticancer Therapeutics to HeLa Cells (open access)

Gold Nanoparticles-enabled Efficient Dual Delivery of Anticancer Therapeutics to HeLa Cells

This article describes a facile one-step method to synthesize stable collodial gold nanoparticles (AuNPs) loaded with a combination of two anticancer therapeutics, -bleomycin and doxorubicin
Date: September 20, 2017
Creator: Farooq, Muhammad U.; Novosad, Valentyn; Rozhkova, Elena A.; Wali, Hussain; Ali, Asghar; Fateh, Ahmed A. et al.
Object Type: Article
System: The UNT Digital Library
Complexity and Heterogeneity in a Dynamic Network (open access)

Complexity and Heterogeneity in a Dynamic Network

This article presents an approximate analytical solution for the connectivity of a network model with a "non-simultaneous" linking scheme.
Date: February 3, 2018
Creator: Lambert, David & Vanni, Fabio
Object Type: Article
System: The UNT Digital Library
Complexity Measures of Music (open access)

Complexity Measures of Music

This article presents a technique to search for the presence of crucial events in music, based on the analysis of the music volume.
Date: February 3, 2018
Creator: Pease, April; Mahmoodi, Korosh & West, Bruce J.
Object Type: Article
System: The UNT Digital Library
Radio-Frequency Actuated Polymer-Based Phononic Meta-Materials for Control of Ultrasonic Waves (open access)

Radio-Frequency Actuated Polymer-Based Phononic Meta-Materials for Control of Ultrasonic Waves

This article describes the achievement of radio-frequency control of a n ultrasonic phononic crystal by encapsulating it in a composite of high k-10% KF-doped BaTiO₃ dielectric nanoparticles with poly(N-isopropylacrylamide) (PNIP Am)-based hydrogel.
Date: July 14, 2016
Creator: Walker, Ezekiel; Wang, Zhiming & Neogi, Arup
Object Type: Article
System: The UNT Digital Library
A new, faint population of X-ray transients (open access)

A new, faint population of X-ray transients

This article reports on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint host in the CANDELS survey.
Date: February 15, 2017
Creator: Bauer, Franz E.; Treister, Ezequiel; Schawinski, K.; Schulze, S.; Luo, Bin; Alexander, David M. et al.
Object Type: Article
System: The UNT Digital Library
ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift, Supermassive Black Holes (open access)

ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift, Supermassive Black Holes

This article presents new ALMA band-7 data for a sample of six luminous quasars at z ≃ 4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties.
Date: February 3, 2017
Creator: Trakhtenbrot, Benny; Lira, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto & Shemmer, Ohad
Object Type: Article
System: The UNT Digital Library
Bold-Independent Computational Entropy Assesses Functional Donut-Like Structures in Brain fMRI Images (open access)

Bold-Independent Computational Entropy Assesses Functional Donut-Like Structures in Brain fMRI Images

This article introduces a novel technique of fMRI images analysis, called computational proximity method, i.e., nucleus clustering in Voronoï tessellations.
Date: February 1, 2017
Creator: Peters, James F.; Ramanna, Sheela; Tozzi, Arturo & Inan, Ebubekir
Object Type: Article
System: The UNT Digital Library
Ion Beam Materials Analysis and Modifications At keV to MeV Energies at the University of North Texas (open access)

Ion Beam Materials Analysis and Modifications At keV to MeV Energies at the University of North Texas

This paper provides an overview of the Ion Beam Modification and Analysis Laboratory facilities and some of the current research projects.
Date: February 25, 2014
Creator: Rout, Bibhudutta; Dhoubhadel, Mangal; Poudel, Prakash R.; Kummari, Venkata C.; Lakshantha, Wickramaarachchige J.; Manuel, J. E. et al.
Object Type: Article
System: The UNT Digital Library
Effect of noise and detector sensitivity on a dynamical process: Inverse power law and Mittag-Leffler interevent time survival probabilities (open access)

Effect of noise and detector sensitivity on a dynamical process: Inverse power law and Mittag-Leffler interevent time survival probabilities

Article on the effect of noise and detector sensitivity on a dynamical process and the inverse power law and Mittag-Leffler interevent time survival probabilities.
Date: February 10, 2014
Creator: Pramukkul, Pensri; Svenkeson, Adam & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library
On The Performance of Quasar Reverberation Mapping in the Era of Time-Domain Photometric Surveys (open access)

On The Performance of Quasar Reverberation Mapping in the Era of Time-Domain Photometric Surveys

This article quantitatively assesses, by means of comprehensive numerical simulations, the ability of broadband photometric surveys to recover the broad emission line region size in quasars under various observing conditions and for a wide range of object properties.
Date: February 2, 2014
Creator: Chelouche, Doron; Shemmer, Ohad; Cotlier, Gabriel I.; Barth, Aaron J. & Rafter, Stephen E.
Object Type: Article
System: The UNT Digital Library
Electric Field Induced Phase Transitions in Polymers: A Novel Mechanism for High Speed Energy Storage (open access)

Electric Field Induced Phase Transitions in Polymers: A Novel Mechanism for High Speed Energy Storage

This article discusses electric field induced phase transitions in polymers.
Date: February 23, 2012
Creator: Ranjan, Vivek; Buongiorno Nardelli, Marco & Bernholc, Jerry
Object Type: Article
System: The UNT Digital Library
Symmetry-induced intermittency in a stochastic reflexive model (open access)

Symmetry-induced intermittency in a stochastic reflexive model

Article on symmetry-induced intermittency in a stochastic reflexive model.
Date: February 21, 2012
Creator: Palatella, Luigi & Grigolini, Paolo
Object Type: Article
System: The UNT Digital Library