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Articles 1 - 17 of 17
Full-Text Articles in Engineering
Nanoceria Distribution And Effects Are Mouse-Strain Dependent, Robert A. Yokel, Michael T. Tseng, D. Allan Butterfield, Matthew L. Hancock, Eric A. Grulke, Jason M. Unrine, Arnold J. Stromberg, Alan K. Dozier, Uschi M. Graham
Nanoceria Distribution And Effects Are Mouse-Strain Dependent, Robert A. Yokel, Michael T. Tseng, D. Allan Butterfield, Matthew L. Hancock, Eric A. Grulke, Jason M. Unrine, Arnold J. Stromberg, Alan K. Dozier, Uschi M. Graham
Pharmaceutical Sciences Faculty Publications
Prior studies showed nanoparticle clearance was different in C57BL/6 versus BALB/c mice, strains prone to Th1 and Th2 immune responses, respectively. Objective: Assess nanoceria (cerium oxide, CeO2 nanoparticle) uptake time course and organ distribution, cellular and oxidative stress, and bioprocessing as a function of mouse strain. Methods: C57BL/6 and BALB/c female mice were i.p. injected with 10 mg/kg nanoceria or vehicle and terminated 0.5 to 24 h later. Organs were collected for cerium analysis; light and electron microscopy with elemental mapping; and protein carbonyl, IL-1β, and caspase-1 determination. Results: Peripheral organ cerium significantly increased, generally more …
Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab
Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab
Chemical Engineering
Water splitting producing hydrogen and oxygen gases appears promising in view of the increasing need of renewable energy sources and storage strategies. Investigation of stable and highly efficient electrocatalysts for oxygen evolution reaction (OER) is targeted in this study at cobalt oxide nanoparticle modified glassy carbon (nano-CoOx/GC) electrodes. The effect of the preparation (Tp) and measuring temperature (Tm) on the electrocatalytic activity of nano-CoOx/GC towards the OER is investigated under various operating conditions. Linear sweep voltammetry (LSV), cyclic voltammetry (CV) as well as SEM and XRD techniques were used to probe the electrocatalytic and morphological characteristics of nano-CoOx prepared under …
Nanohybrid Membrane Synthesis With Phosphorene Nanoparticles: A Study Of The Addition, Stability And Toxicity, Joyner Eke, Philip Alexander Mills, Jacob Ryan Page, Garrison P. Wright, Olga V. Tsyusko, Isabel C. Escobar
Nanohybrid Membrane Synthesis With Phosphorene Nanoparticles: A Study Of The Addition, Stability And Toxicity, Joyner Eke, Philip Alexander Mills, Jacob Ryan Page, Garrison P. Wright, Olga V. Tsyusko, Isabel C. Escobar
Center of Membrane Sciences Faculty Publications
Phosphorene is a promising candidate as a membrane material additive because of its inherent photocatalytic properties and electrical conductance which can help reduce fouling and improve membrane properties. The main objective of this study was to characterize structural and morphologic changes arising from the addition of phosphorene to polymeric membranes. Here, phosphorene was physically incorporated into a blend of polysulfone (PSf) and sulfonated poly ether ether ketone (SPEEK) doping solution. Protein and dye rejection studies were carried out to determine the permeability and selectivity of the membranes. Since loss of material additives during filtration processes is a challenge, the stability …
Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab
Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab
Chemical Engineering
Water splitting producing hydrogen and oxygen gases appears promising in view of the increasing need of renewable energy sources and storage strategies. Investigation of stable and highly efficient electrocatalysts for oxygen evolution reaction (OER) is targeted in this study at cobalt oxide nanoparticle modified glassy carbon (nano-CoOx/GC) electrodes. The effect of the preparation (Tp) and measuring temperature (Tm) on the electrocatalytic activity of nano-CoOx/GC towards the OER is investigated under various operating conditions. Linear sweep voltammetry (LSV), cyclic voltammetry (CV) as well as SEM and XRD techniques were used to probe the electrocatalytic and morphological characteristics of nano-CoOx prepared under …
In Vivo Biosynthesis Of Inorganic Nanomaterials Using Eukaryotes - A Review, Ashiqur Rahman, Julia Lin, Francisco E. Jaramillo, Dennis A. Bazylinski, Clayton Jeffryes, Si Amar Dahoumane
In Vivo Biosynthesis Of Inorganic Nanomaterials Using Eukaryotes - A Review, Ashiqur Rahman, Julia Lin, Francisco E. Jaramillo, Dennis A. Bazylinski, Clayton Jeffryes, Si Amar Dahoumane
Life Sciences Faculty Research
Bionanotechnology, the use of biological resources to produce novel, valuable nanomaterials, has witnessed tremendous developments over the past two decades. This eco-friendly and sustainable approach enables the synthesis of numerous, diverse types of useful nanomaterials for many medical, commercial, and scientific applications. Countless reviews describing the biosynthesis of nanomaterials have been published. However, to the best of our knowledge, no review has been exclusively focused on the in vivo biosynthesis of inorganic nanomaterials. Therefore, the present review is dedicated to filling this gap by describing the many different facets of the in vivo biosynthesis of nanoparticles (NPs) using living eukaryotic …
Understanding The Effects Of Plasma Assisted Nanoparticle Deposition For The Enhancement Of Optical And Electrochemical Response, Apurva Sonawane
Understanding The Effects Of Plasma Assisted Nanoparticle Deposition For The Enhancement Of Optical And Electrochemical Response, Apurva Sonawane
FIU Electronic Theses and Dissertations
In this work, the effects of atmospheric plasma treatment on morphology, optical, and electrochemical properties of 10 ± 3nm spherical silver and gold nanoparticles (AgNPs and AuNPs) functionalized substrates were studied. The nanoparticles (NPs) were deposited on substrates by drop-casting, aerosol spray, and a low-temperature atmospheric plasma-assisted aerosol jet. The reduction in nanoparticle size was observed, which was explained by the redox reaction that occurs on the nanoparticle surface. This phenomenon was evident by the presence of AgO, Ag2O, and AuOx Raman peaks in the treated sample. The surface charge changed as a result of plasma treatment, …
Water Purification Device And A Method Of Decontaminating A Water Supply, Dibakar Bhattacharyya, Li Xiao
Water Purification Device And A Method Of Decontaminating A Water Supply, Dibakar Bhattacharyya, Li Xiao
Chemical and Materials Engineering Faculty Patents
A water purification device is provided in the form of a hydrogel matrix containing immobilized nanoparticles that are directly synthesized in-situ in the hydrogel matrix. The hydrogel matrix is temperature sensitive, such that swelling draws in pollutants that are captured by the nanoparticles, while deswelling releases purified water. A related method of decontaminating the water supply contaminated with a target pollutant is also disclosed.
Geometric Optimization Of Plasmonic Nanostructure Arrays On Mwir Hgcdte (Mct), Nagendrababu Vanamala, Kevin C. Santiago, Naresh C. Das, Samuel Keith Hargrove
Geometric Optimization Of Plasmonic Nanostructure Arrays On Mwir Hgcdte (Mct), Nagendrababu Vanamala, Kevin C. Santiago, Naresh C. Das, Samuel Keith Hargrove
Mechanical and Manufacturing Engineering Faculty Research
Mercury Cadmium Telluride (MCT) is a primary absorber material used in most infrared (IR) detection technologies. Our previous studies show that the optical absorbance profile of MCT in the mid-infrared region can be enhanced by 13% under ambient conditions via integrating periodic Indium Tin Oxide (ITO) nanostructures. Here, we focus on the geometrical parameterization and optimization of ITO nanostructure arrays. We simulate several types of geometries, their corresponding effective absorption profiles, E-field distribution, and optimal geometric parameters. This work may lead to improved light collection and absorption edge engineering, as MCT continues to be the material of choice in IR …
A Novel Approach For Using Silica Nanoparticles In A Proppant Pack To Fixate Coal Fines, Faisal Ur Rahman Awan, Alireza Keshavarz, Hamed Akhondzadeh, Sarmad Al-Anssari, Stefan Iglauer
A Novel Approach For Using Silica Nanoparticles In A Proppant Pack To Fixate Coal Fines, Faisal Ur Rahman Awan, Alireza Keshavarz, Hamed Akhondzadeh, Sarmad Al-Anssari, Stefan Iglauer
Research outputs 2014 to 2021
Hydraulic fracturing operations in coal seam gas reservoirs are highly prone to release coal fines. Coal fines inevitably cause mechanical pump failure and permeability damage as a result of their hydrophobicity, aggregation in the system and pore-throat blockage. One approach to affix these coal fines at their source, and to retard generation, is to introduce a nanoparticle-treated proppant pack. Thus, this research explores coal fines retention (known as adsorption) in a proppant pack using nanoparticles. In the study, the electrolytic environment, pH, flow rate, temperature and pressure were kept constant, while the variables were concentration of silica nanoparticles (0–0.1 wt%) …
Antibacterial And Anticancer Activity Of Hydrothermally-Synthesized Zinc Oxide Nanomaterials Using Natural Extracts Of Neem, Pepper And Turmeric As Solvent Media, C. Abinaya, R. Manjula Devi, P. Suresh, N. Balasubramanian, N. Muthaiya, N. D. Kannan, J. Annaraj, V. Shanmugaiah, Joshua Pearce, P. Shanmugapriya, J. Mayandi
Antibacterial And Anticancer Activity Of Hydrothermally-Synthesized Zinc Oxide Nanomaterials Using Natural Extracts Of Neem, Pepper And Turmeric As Solvent Media, C. Abinaya, R. Manjula Devi, P. Suresh, N. Balasubramanian, N. Muthaiya, N. D. Kannan, J. Annaraj, V. Shanmugaiah, Joshua Pearce, P. Shanmugapriya, J. Mayandi
Michigan Tech Publications
A novel and simple wet chemical hydrothermal synthesis method was employed in the preparation of zinc oxide (ZnO) nanoparticles using neem (N), pepper (P) and turmeric (T) extracts as solvent media. The structural and optical properties as well as the antibacterial and anticancer properties of all the samples (ZnO, N/ZnO, P/ZnO, T/ZnO and NPT/ZnO) were characterized and analyzed. Solvent media was found to have an effect on both the size and the morphology of the nanoparticles, which in turn effected their optical and cytotoxic properties. The colony forming unit (CFU) assays were done for E. coli, S. aureus and S. …
Synthetic Lethality In Pediatric Brain Cancer Cells By Optimized Plga Nanoparticles And Drug Combinations, Megan Ruckman, Megan Otte, Forrest Kievit
Synthetic Lethality In Pediatric Brain Cancer Cells By Optimized Plga Nanoparticles And Drug Combinations, Megan Ruckman, Megan Otte, Forrest Kievit
UCARE Research Products
Here we test drugs effectiveness to inhibit various DNA repair pathways with the purpose of sensitizing cancer cells to radiotherapy. We work on optimizing delivery of DNA repair pathway inhibiting drugs by the use of PLGA nanoparticles.
Nanoparticle Treatment To Counter Reactive Oxygen Species After Traumatic Brain Injury, Brandon Mcdonald, Forrest Kievit
Nanoparticle Treatment To Counter Reactive Oxygen Species After Traumatic Brain Injury, Brandon Mcdonald, Forrest Kievit
UCARE Research Products
Traumatic brain injury (TBI) is defined as damage to the brain, resulting from an external mechanical force, such as an impact to the head (Kievit et. al, 2016).There are several examples that could result in a potential TBI; such as falling with contact to the head, car accidents and even physical activities including football, wrestling, and boxing. Because of the several different scenarios that an individual could impact their head, TBI’s have become an all too common aspect of everyday life. TBI is currently the leading cause of death and disability in children and adults under the age of 45, …
Assessment Of Nanoparticle Accumulation With Dynamic Contrast-Enhanced Magnetic Resonance Imaging, Hunter Miller
Assessment Of Nanoparticle Accumulation With Dynamic Contrast-Enhanced Magnetic Resonance Imaging, Hunter Miller
Department of Biological Systems Engineering: Dissertations, Theses, and Student Research
Nanoparticle (NP)-based therapeutics promise to improve medicine in multiple areas by increasing target engagement. To date, most research has focused on cancer, aiming to increase uptake using the enhanced permeability and retention (EPR) effect. Despite pre-clinical success in proof-of-concept studies, understanding of the fundamental interactions between NP and biological systems that govern outcomes remains incomplete. To realize the potential of NPs for cancer therapeutics, and to expand their application into other diseases, the roles physicochemical properties play in NP uptake must be better understood. Some investigations have been performed into the effects of size and surface charge on uptake into …
Spectroscopic Investigations On Pvdf-Fe2o3 Nanocomposites, Dorina M. Chipara, Victor Kuncser, Karen Lozano, Mataz Alcoutlabi, Elamin Ibrahim, Mircea Chipara
Spectroscopic Investigations On Pvdf-Fe2o3 Nanocomposites, Dorina M. Chipara, Victor Kuncser, Karen Lozano, Mataz Alcoutlabi, Elamin Ibrahim, Mircea Chipara
Mechanical Engineering Faculty Publications and Presentations
Polyvinylidene fluoride-iron oxide (PVDF-Fe2O3) nanocomposites have been obtained my melt mixing of PVDF with Fe2O3 nanoparticles. The interactions between the polymeric matrix and the nanofiller have been investigated by wide angle X-ray scattering (WAXS), Fourier transform infrared spectroscopy (FTIR), and Raman spectroscopy, using both red and green excitations (lasers). WAXS, FTIR, and Raman spectra confirm that all samples contain α PVDF as the major crystalline form of the polymeric matrix. Experimental data revealed small changes in the positions of X-ray lines as well as modifications of the width of X-ray lines upon loading by Fe2O3 nanoparticles. FTIR and Raman spectra …
Classification And Biological Identity Of Complex Nano Shapes, Luca Boselli, Hender Lopez, Wei Zhang, Qi Cai, Valeria A. Giannone, Jingji Li, Alirio Moura, João M. De Araujo, Jennifer Cookman, Valentina Castagnola, Yan Yan, Kenneth A. Dawson
Classification And Biological Identity Of Complex Nano Shapes, Luca Boselli, Hender Lopez, Wei Zhang, Qi Cai, Valeria A. Giannone, Jingji Li, Alirio Moura, João M. De Araujo, Jennifer Cookman, Valentina Castagnola, Yan Yan, Kenneth A. Dawson
Articles
Everywhere in our surroundings we increasingly come in contact with nanostructures that have distinctive complex shape features on a scale comparable to the particle itself. Such shape ensembles can be made by modern nano-synthetic methods and many industrial processes. With the ever growing universe of nanoscale shapes, names such as “nanoflowers” and “nanostars” no longer precisely describe or characterise the distinct nature of the particles. Here we capture and digitise particle shape information on the relevant size scale and create a condensed representation in which the essential shape features can be captured, recognized and correlated. We find the natural emergence …
Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab
Enhanced Water Electrolysis: Effect Of Temperature On The Oxygen Evolution Reaction At Cobalt Oxide Nanoparticles Modified Glassy Carbon Electrodes, Aya Akl, Hany A. Elazab, Mohamed A. Sadek, Mohamed S. El-Deab
Chemical and Biochemical Engineering Faculty Research & Creative Works
Water splitting producing hydrogen and oxygen gases appears promising in view of the increasing need of renewable energy sources and storage strategies. Investigation of stable and highly efficient electrocatalysts for oxygen evolution reaction (OER) is targeted in this study at cobalt oxide nanoparticle modified glassy carbon (nano-CoOx/GC) electrodes. The effect of the preparation (Tp) and measuring temperature (Tm) on the electrocatalytic activity of nano-CoOx/GC towards the OER is investigated under various operating conditions. Linear sweep voltammetry (LSV), cyclic voltammetry (CV) as well as SEM and XRD techniques were used to probe the electrocatalytic and morphological characteristics of nano-CoOx prepared under …
Nanotechnologies: A Review Of Inventions And Utility Models. Part V, L. A. Ivanov, L. D. Xu, E. S. Bokova, A. D. Ishkov
Nanotechnologies: A Review Of Inventions And Utility Models. Part V, L. A. Ivanov, L. D. Xu, E. S. Bokova, A. D. Ishkov
Information Technology & Decision Sciences Faculty Publications
The article provides an abstract review of patents. The results of creative activity of scientists, engineers and specialists, including inventions in the field of nanotechnology and nanomaterials, being implemented, allow achieving a significant effect in construction, housing and community services, and related sectors of the economy. For example, the invention "A method to produce dry construction mixtures" refers to manufacturing of building materials, in particularly, to manufacture of dry construction mixtures (DCM) by the method of joint mechanoactivation of cement and dolomite, with further modification of them with carbon nanostructures (CNT). The technical result of the given method of mixing …