Search Results - "Zepp, Richard G"

Sunlight-Driven Reduction of Silver Ions by Natural Organic Matter: Formation and Transformation of Silver Nanoparticles by Hou, Wen-Che, Stuart, Brittany, Howes, Roberta, Zepp, Richard G

“…Photobiogeochemical reactions involving metal species can be a source of naturally occurring nanoscale materials in the aquatic environment. This study…”
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Photochemical Transformation of Graphene Oxide in Sunlight by Hou, Wen-Che, Chowdhury, Indranil, Goodwin, David G, Henderson, W. Matthew, Fairbrother, D. Howard, Bouchard, Dermont, Zepp, Richard G

“…Graphene oxide (GO) is promising in scalable production and has useful properties that include semiconducting behavior, catalytic reactivity, and aqueous…”
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Sunlight-mediated inactivation of health-relevant microorganisms in water: a review of mechanisms and modeling approaches by Nelson, Kara L, Boehm, Alexandria B, Davies-Colley, Robert J, Dodd, Michael C, Kohn, Tamar, Linden, Karl G, Liu, Yuanyuan, Maraccini, Peter A, McNeill, Kristopher, Mitch, William A, Nguyen, Thanh H, Parker, Kimberly M, Rodriguez, Roberto A, Sassoubre, Lauren M, Silverman, Andrea I, Wigginton, Krista R, Zepp, Richard G

“…Health-relevant microorganisms present in natural surface waters and engineered treatment systems that are exposed to sunlight can be inactivated by a complex…”
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Probing Photosensitization by Functionalized Carbon Nanotubes by Chen, Chia-Ying, Zepp, Richard G

“…Carbon nanotubes (CNTs) photosensitize the production of reactive oxygen species that may damage organisms by biomembrane oxidation or mediate environmental…”
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Solar ultraviolet radiation in a changing climate by WILLIAMSON, Craig E, ZEPP, Richard G, ROBINSON, Sharon A, HÄDER, Donat-P, PAUL, Nigel D, BORNMAN, Janet F, LUCAS, Robyn M, MADRONICH, Sasha, AUSTIN, Amy T, BALLARE, Carlos L, NORVAL, Mary, SULZBERGER, Barbara, BAIS, Alkiviadis F, MCKENZIE, Richard L

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Production and consumption of reactive oxygen species by fullerenes by Kong, Lingjun, Zepp, Richard G.

“…Reactive oxygen species (ROS) are one of the most important intermediates in chemical, photochemical, and biological processes. To understand the environmental…”
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Weathering Effects on Degradation of Low-Density Polyethylene-Nanosilica Composite with Added Pro-oxidant by Zepp, Richard G., Acrey, Brad, Davis, Mary J. B., Andrady, Anthony L., Locklin, Jason, Arnold, Rachelle, Okungbowa, Osadolor, Commodore, Adwoa

“…Nanomaterials are increasingly used in polymer composites to enhance their properties, such as mechanical performance and durability, increased electrical…”
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Dissolved organic fluorophores in southeastern US coastal waters: correction method for eliminating Rayleigh and Raman scattering peaks in excitation–emission matrices by Zepp, Richard G, Sheldon, Wade M, Moran, Mary Ann

“…Fluorescence-based observations provide useful, sensitive information concerning the nature and distribution of colored dissolved organic matter (CDOM) in…”
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Photoreactivity of Unfunctionalized Single-Wall Carbon Nanotubes Involving Hydroxyl Radical: Chiral Dependency and Surface Coating Effect by Hou, Wen-Che, BeigzadehMilani, Somayeh, Jafvert, Chad T, Zepp, Richard G

“…Single-wall carbon nanotubes (SWCNTs) have a variety of potential and demonstrated applications, and their production rates are increasing rapidly. This…”
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Photobleaching kinetics of chromophoric dissolved organic matter derived from mangrove leaf litter and floating Sargassum colonies by Shank, G. Christopher, Zepp, Richard G., Vähätalo, Anssi, Lee, Rosalynn, Bartels, Erich

“…We examined the photoreactivity of chromophoric dissolved organic matter (CDOM) derived from Rhizophora mangle (red mangrove) leaf litter and floating…”
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Carbon Loss and Optical Property Changes during Long-Term Photochemical and Biological Degradation of Estuarine Dissolved Organic Matter by Moran, Mary Ann, Sheldon, Wade M., Zepp, Richard G.

“…Terrestrially derived dissolved organic matter (DOM) impacts the optical properties of coastal seawater and affects carbon cycling on a global scale. We…”
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Photochemical Mineralization of Dissolved Organic Nitrogen to Ammonium in the Baltic Sea by Vähätalo, Anssi V, Zepp, Richard G

“…Solar-radiation-induced photochemistry can be considered as a new source of nutrients when photochemical reactions release bioavailable nitrogen from…”
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Production of chromophoric dissolved organic matter from mangrove leaf litter and floating Sargassum colonies by Shank, G. Christopher, Lee, Rosalynn, Vähätalo, Anssi, Zepp, Richard G., Bartels, Erich

“…Chromophoric dissolved organic matter (CDOM) strongly absorbs solar radiation in the blue-green and serves as the primary attenuator of water column…”
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Role of Photoreactions in the Formation of Biologically Labile Compounds from Dissolved Organic Matter by Moran, Mary Ann, Zepp, Richard G.

“…Dissolved organic matter (DOM) can be degraded by sunlight into a variety of photoproducts that stimulate the growth and activity of microorganisms in aquatic…”
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Spatial and Temporal Variability of Solar Ultraviolet Exposure of Coral Assemblages in the Florida Keys: Importance of Colored Dissolved Organic Matter by Zepp, Richard G., Shank, G. Christopher, Stabenau, Erik, Patterson, Karen W., Cyterski, Mike, Fisher, William, Bartels, Erich, Anderson, Susan L.

“…Solar ultraviolet (UV) radiation can have deleterious effects on coral assemblages in tropical and subtropical marine environments, but little information is…”
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Factors Influencing Photoreactions of Dissolved Organic Matter in a Coastal River of the Southeastern United States by Gao, Huizhen, Zepp, Richard G

“…Photoreactions of dissolved organic matter can affect the oxidizing capacity, nutrient dynamics, trace gas exchange, and color of surface waters. This study…”
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Sunlight affects aggregation and deposition of graphene oxide in the aquatic environment by Chowdhury, Indranil, Hou, Wen-Che, Goodwin, David, Henderson, Matthew, Zepp, Richard G., Bouchard, Dermont

“…In this study, we investigate the role of simulated sunlight on the physicochemical properties, aggregation, and deposition of graphene oxide (GO) in aquatic…”
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Roles of Silver–Chloride Complexations in Sunlight-Driven Formation of Silver Nanoparticles by Singh, Abhishek, Hou, Wen-Che, Lin, Tsair-Fuh, Zepp, Richard G

“…In aerobic natural surface water, a silver ion (Ag+) exists in various Ag+–Cl– complexes because of a strong affinity for a chloride ion (Cl–); however, little…”
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The role of nitrogen in chromophoric and fluorescent dissolved organic matter formation by Biers, Erin J., Zepp, Richard G., Moran, Mary Ann

“…Microbial and photochemical processes affect chromophoric dissolved organic matter (CDOM) dynamics in the ocean. Some evidence suggests that dissolved nitrogen…”
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Role of the photo-Fenton reaction in the production of hydroxyl radicals and photobleaching of colored dissolved organic matter in a coastal river of the southeastern United States by White, Emily M, Vaughan, Pamela P, Zepp, Richard G

“…Photochemical reactions involving colored dissolved organic matter (CDOM) in natural waters are important determinants of nutrient cycling, trace gas…”
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