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Synthesis and Characterization of Copper Releasing Polymer Nanoparticles

Description: Polymeric nanoparticles were synthesized and loaded with Cu²⁺ to explore the therapeutic potential for catically active transition metal ions and complexes other than cisplatin. Two types of nanoparticles were synthesized to show the potential for polymer based vectors. Copper loading and release were characterized via inductively coupled plasma mass spectrometry (ICP MS), energy dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS), and elemental analysis. Results d… more
Date: May 2011
Creator: Harris, Alesha N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Biocompatible Hybrid Nanomaterials Involving Polymers and Hydrogels Interfaced with Phosphorescent Complexes and Toxin-Free Metallic Nanoparticles for Biomedical Applications

Description: The major topics discussed are all relevant to interfacing brightly phosphorescent and non-luminescent coinage metal complexes of [Ag(I) and Au(I)] with biopolymers and thermoresponsive gels for making hybrid nanomaterials with an explanation on syntheses, characterization and their significance in biomedical fields. Experimental results and ongoing work on determining outreaching consequences of these hybrid nanomaterials for various biomedical applications like cancer therapy, bio-imaging and… more
Date: August 2011
Creator: Marpu, Sreekar B.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Nanoparticles & Cancer Cells

Description: Undergraduate research thesis studying nanoparticles as a therapeutic approach in cancer-targeting drugs and their effects on mammals. The author hypothesizes that nanoparticles can make cancer-targeting drugs more effective. This thesis also includes the PowerPoint slides presented at UNT Scholar's Day.
Date: 2013~/2014~
Creator: deCarvalho, Roceli
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Honors College
open access

The Potential Role of Nanotechnology in Therapeutic Approaches for Triple Negative Breast Cancer

Description: This review is focused on opportunities for developing new approaches for filling the current void in an effective treatment for Triple Negative Breast Cancer, TNBC, patients. Triple Negative Breast Cancer, TNBC, a highly aggressive and metastatic type of breast cancer, is characterized by loss of expression of the estrogen receptor (ER), progesterone receptor (PR), and a lack of overexpression of the human epidermal growth factor receptor 2 (HER2).
Date: June 18, 2013
Creator: Johnson, Rebecca; Sabnis, Nirupama; McConathy, Walter J. & Lacko, Andras G.
Item Type: Refine your search to only Article
Partner: UNT Health Science Center
open access

Phototoxic Effects of Titanium Dioxide Nanoparticles on Daphnia Magna

Description: Titanium dioxide nanoparticles (TiO2-NP) are one of the most abundantly utilized nanomaterials in the world. Studies have demonstrated the mechanism of acute toxicity in TiO2-NP to be the production of reactive oxygen species (ROS) leading to oxidative stress and mortality in exposed organisms. It has also been demonstrated that the anatase crystalline conformation is capable of catalyzing the cleavage of water molecules to further increase the concentration of ROS in the presence of ultraviole… more
Date: December 2013
Creator: Mansfield, Charles M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Targeted and Metal-loaded Polymeric Nanoparticles As Potential Cancer Therapeutics

Description: Polymeric nanoparticles were designed, synthesized, and loaded with metal ions to explore the therapeutic potential for transition metals other than platinum found in cisplatin. Nanoparticles were synthesized to show the potential for polymer based vectors. Metal loading and release were characterized via Inductively Coupled Plasma Mass Spectrometry (ICP MS), Energy Dispersive X-Ray Spectroscopy (EDX), X-Ray Photoelectron Spectroscopy (XPS), and Elemental Analysis. Targeting was attempted wi… more
Date: May 2014
Creator: Harris, Alesha N.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Development of Biodegradable Nanocarriers Loaded with a Monoclonal Antibody

Description: This article examines the feasibility of encapsulating monoclonal antibodies within poly(lactic-co-glycolic acid) (PLGA) nanoparticles using a water/oil/water double emulsion solvent evaporation technique. This method can be used to prepare protective polymeric nanoparticles for transporting functional antibodies to the cytoplasmic compartment of cancer cells. The author's studies achieved successful formulation of antibody loaded polymeric nanoparticles, thus indicating that a PLGA-based antib… more
Date: February 12, 2015
Creator: Gdowski, Andrew; Ranjan, Amalendu; Mukerjee, Anindita & Vishwanatha, Jamboor
Item Type: Refine your search to only Article
Partner: UNT Health Science Center
open access

Nonlinear and Quantum Optics Near Nanoparticles

Description: We study the behavior of electric fields in and around dielectric and metal nanoparticles, and prepare the ground for their applications to a variety of systems viz. photovoltaics, imaging and detection techniques, and molecular spectroscopy. We exploit the property of nanoparticles being able to focus the radiation field into small regions and study some of the interesting nonlinear, and quantum coherence and interference phenomena near them. The traditional approach to study the nonlinear lig… more
Date: December 2015
Creator: Dhayal, Suman
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Metallic Nanodroplet Induced Coulomb Catalysis for Off-Resonant Plasmonic Enhancement of Photoemission in Semiconductors

Description: This article reports a new mechanism based on electrostatic interactions of carriers and their image charges in metals to generate more photons from optical sources at frequencies that are off-resonant to the localized plasmon frequency.
Date: July 6, 2016
Creator: Neogi, Arup; Grycznski, Karol G.; Llopis, A.; Lin, Jie; Main, Kyle; Shimada, Ryoko et al.
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

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

Description: 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: February 24, 2017
Creator: Walker, Ezekiel; Wang, Zhiming & Neogi, Arup
Item Type: Refine your search to only Article
Partner: UNT College of Arts and Sciences
open access

Potential Toxicity and Underlying Mechanisms Associated with Pulmonary Exposure to Iron Oxide Nanoparticles: Conflicting Literature and Unclear Risk

Description: This review article will focus on known risks following iron oxide nanoparticles (IONPs) exposure supported by human, animal, and cell culture-based studies, the potential challenges intrinsic to IONPs toxicity assessment, and how these may contribute to the poorly characterized IONPs toxicity profile.
Date: October 6, 2017
Creator: Kornberg, Tiffany G.; Stueckle, Todd A.; Antonini, James M.; Rojanasakul, Liying W.; Castranova, Vincent; Yang, Yong et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Cooperative bi-exponential decay of dye emission coupled via plasmons

Description: This article demonstrates that the relaxation in the sub-radiant system leads to the population of the sub-radiant states by dephasing the super-radiant Dicke states giving rise to the bi-exponential decay in agreement with the experiments.
Date: June 22, 2018
Creator: Lyvers, David P.; Moazzezi, Mojtaba; de Silva, Vashista C.; Brown, Dean P.; Urbas, Augustine M.; Rostovtsev, Yuri V. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

Applications of Metallic Clusters and Nanoparticles via Soft Landing Ion Mobility, from Reduced to Ambient Pressures

Description: Nanoparticles, simple yet groundbreaking objects have led to the discovery of invaluable information due to their physiological, chemical, and physical properties, have become a hot topic in various fields of study including but not limited to chemistry, biology, and physics. In the work presented here, demonstrations of various applications of chemical free nanoparticles are explored, from the determination of a non-invasive method for the study of the exposome via using soft-landing ion mobil… more
Date: August 2018
Creator: Aguilar Ayala, Roberto
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Plasmonically-powered hot carrier induced modulation of light emission in a two-dimensional GaAs semiconductor quantum well

Description: Article describes an experiment in which a hot-electron-enabled route to controlling light with dissipative loss compensation in semiconductor quantum light emitters has been realized for tunable quantum optoelectronic devices via a two-species plasmon system.
Date: December 10, 2018
Creator: Ashalley, Eric; Gryczynski, Karol; Wang, Zhiming; Salamo, Gregory & Neogi, Arup
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

New mechanism of plasmons specific for spin-polarized nanoparticles

Description: 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: February 14, 2019
Creator: Bhatta, Hari L.; Aliev, Abil E. & Drachev, Vladimir P.
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

International Journal of Lightweight Materials and Manufacture

Description: This article employs a recently introduced magnesium-samarium oxide (Mg–Sm₂O₃) nanocomposite, with different volume fractions of nanosize Sm₂O₃ particles as reinforcement, to study ambient temperature rate-dependent plastic response of the material.
Date: May 11, 2020
Creator: Hasannaeimi, Vahid; Mukherjee, Sundeep; Haghshenas, M.; Song, X. & Gupta, D.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
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