Search Results - "Mudunkotuwa, Imali"

Citric Acid Adsorption on TiO2 Nanoparticles in Aqueous Suspensions at Acidic and Circumneutral pH: Surface Coverage, Surface Speciation, and Its Impact on Nanoparticle−Nanoparticle Interactions by Mudunkotuwa, Imali A, Grassian, Vicki H

“…Citric acid plays an important role as a stabilizer in several nanomaterial syntheses and is a common organic acid found in nature. Here, the adsorption of…”
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Aggregation and Dissolution of 4 nm ZnO Nanoparticles in Aqueous Environments: Influence of pH, Ionic Strength, Size, and Adsorption of Humic Acid by Bian, Shao-Wei, Mudunkotuwa, Imali A., Rupasinghe, Thilini, Grassian, Vicki H.

“…Metal oxide nanoparticles are used in a wide range of commercial products, leading to an increased interest in the behavior of these materials in the aquatic…”
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ATR-FTIR spectroscopy as a tool to probe surface adsorption on nanoparticles at the liquid-solid interface in environmentally and biologically relevant media by Mudunkotuwa, Imali A, Minshid, Alaa Al, Grassian, Vicki H

“…Given the importance of nanoparticle surface composition in nanotoxicology, analytical tools that can probe nanoparticle surfaces in aqueous media are crucial…”
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Environmental Implications of Nanoparticle Aging in the Processing and Fate of Copper-Based Nanomaterials by Mudunkotuwa, Imali A, Pettibone, John M, Grassian, Vicki H

“…Copper nanomaterials are being used in a large number of commercial products because these materials exhibit unique optical, magnetic, and electronic…”
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Dissolution of ZnO Nanoparticles at Circumneutral pH: A Study of Size Effects in the Presence and Absence of Citric Acid by Mudunkotuwa, Imali A, Rupasinghe, Thilini, Wu, Chia-Ming, Grassian, Vicki H

“…Understanding size-dependent processes, including dissolution, of engineered nanoparticles is essential in addressing the potential environmental and health…”
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Histidine Adsorption on TiO2 Nanoparticles: An Integrated Spectroscopic, Thermodynamic, and Molecular-Based Approach toward Understanding Nano–Bio Interactions by Mudunkotuwa, Imali A, Grassian, Vicki H

“…Nanoparticles in biological media form dynamic entities as a result of competitive adsorption of proteins on nanoparticle surfaces called protein coronas. The…”
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Nano–Bio Interactions of Porous and Nonporous Silica Nanoparticles of Varied Surface Chemistry: A Structural, Kinetic, and Thermodynamic Study of Protein Adsorption from RPMI Culture Medium by Lehman, Sean E, Mudunkotuwa, Imali A, Grassian, Vicki H, Larsen, Sarah C

“…Understanding complex chemical changes that take place at nano–bio interfaces is of great concern for being able to sustainably implement nanomaterials in key…”
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Impacts of co-firing biomass on emissions of particulate matter to the atmosphere by Al-Naiema, Ibrahim, Estillore, Armando D., Mudunkotuwa, Imali A., Grassian, Vicki H., Stone, Elizabeth A.

“…Gas and particle emissions from co-firing coal and two types of biomass versus coal was evaluated in a circulating fluidized bed boiler operating with a…”
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Effects of Coal Fly Ash Particulate Matter on the Antimicrobial Activity of Airway Surface Liquid by Vargas Buonfiglio, Luis G, Mudunkotuwa, Imali A, Abou Alaiwa, Mahmoud H, Vanegas Calderón, Oriana G, Borcherding, Jennifer A, Gerke, Alicia K, Zabner, Joseph, Grassian, Vicki H, Comellas, Alejandro P

“…Sustained exposure to ambient particulate matter (PM) is a global cause of mortality. Coal fly ash (CFA) is a byproduct of coal combustion and is a source of…”
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Chitosan coating of copper nanoparticles reduces in vitro toxicity and increases inflammation in the lung by Worthington, Kristan L S, Adamcakova-Dodd, Andrea, Wongrakpanich, Amaraporn, Mudunkotuwa, Imali A, Mapuskar, Kranti A, Joshi, Vijaya B, Allan Guymon, C, Spitz, Douglas R, Grassian, Vicki H, Thorne, Peter S, Salem, Aliasger K

“…Despite their potential for a variety of applications, copper nanoparticles induce very strong inflammatory responses and cellular toxicity following…”
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Accurate quantification of tio2 nanoparticles collected on air filters using a microwave-assisted acid digestion method by Mudunkotuwa, Imali A., Anthony, T. Renée, Grassian, Vicki H., Peters, Thomas M.

“…Titanium dioxide (TiO 2 ) particles, including nanoparticles with diameters smaller than 100 nm, are used extensively in consumer products. In a 2011 current…”
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Rapid analysis of the size distribution of metal-containing aerosol by Park, Jae Hong, Mudunkotuwa, Imali A., Crawford, Kathryn J., Anthony, T. Renée, Grassian, Vicki H., Peters, Thomas M.

“…Conventional methods to measure the metallic content of particles by size are time consuming and expensive, requiring collection of particles with a cascade…”
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Physicochemical Characterization of Simulated Welding Fumes from a Spark Discharge System by Park, Jae Hong, Mudunkotuwa, Imali A., Kim, Jong Sung, Stanam, Aditya, Thorne, Peter S., Grassian, Vicki H., Peters, Thomas M.

“…This study introduces a spark discharge system (SDS) as a way to simulate welding fumes. The SDS was developed using welding rods as electrodes with an…”
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Porous polyurethane foam for use as a particle collection substrate in a nanoparticle respiratory deposition sampler by Mines, Levi W. D., Park, Jae Hong, Mudunkotuwa, Imali A., Anthony, T. Renée, Grassian, Vicki H., Peters, Thomas M.

“…Porous polyurethane foam was evaluated to replace the eight nylon meshes used as a substrate to collect nanoparticles in the Nanoparticle Respiratory…”
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A Granular Bed for Use in a Nanoparticle Respiratory Deposition Sampler by Park, Jae Hong, Mudunkotuwa, Imali A., Mines, Levi W. D., Anthony, T. Renée, Grassian, Vicki H., Peters, Thomas M.

“…A granular bed was designed to collect nanoparticles as an alternative to nylon mesh screens for use in a nanoparticle respiratory deposition (NRD) sampler…”
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Nonwoven textile for use in a nanoparticle respiratory deposition sampler by Vosburgh, Donna J.H., Park, Jae Hong, Mines, Levi W.D., Mudunkotuwa, Imali A., Anthony, T. Renée, Peters, Thomas M.

“…The nanoparticle respiratory deposition (NRD) sampler is a personal sampler that combines a cyclone, impactor, and a nylon mesh diffusion stage to measure a…”
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Physicochemical Characterization of Simulated Welding Fume from a Spark Discharge System by Park, Jae Hong, Mudunkotuwa, Imali A, Kim, Jong Sung, Stanam, Aditya, Thorne, Peter S, Grassian, Vicki H, Peters, Thomas M

“…This study introduces spark discharge system (SDS) as a way to simulate welding fumes. The SDS was developed using welding rods as electrodes with an optional…”
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The devil is in the details (or the surface): impact of surface structure and surface energetics on understanding the behavior of nanomaterials in the environment by Mudunkotuwa, Imali A, Grassian, Vicki H

“…Metal and metal oxide nanomaterials are found in many consumer products for use in a wide range of applications including catalysis, sensors and contaminant…”
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Reduction of Biomechanical and Welding Fume Exposures in Stud Welding by Fethke, Nathan B, Peters, Thomas M, Leonard, Stephanie, Metwali, Mahmoud, Mudunkotuwa, Imali A

“…The welding of shear stud connectors to structural steel in construction requires a prolonged stooped posture that exposes ironworkers to biomechanical and…”
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Histidine Adsorption on TiO 2 Nanoparticles: An Integrated Spectroscopic, Thermodynamic, and Molecular-Based Approach toward Understanding Nano–Bio Interactions by Mudunkotuwa, Imali A., Grassian, Vicki H.

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