Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Randhir P. Deo"'
Autor:
Rolf U. Halden, Randhir P. Deo
Publikováno v:
Water, Vol 5, Iss 3, Pp 1346-1365 (2013)
The known occurrence of pharmaceuticals in the built and natural water environment, including in drinking water supplies, continues to raise concerns over inadvertent exposures and associated potential health risks in humans and aquatic organisms. At
Autor:
Randhir P. Deo, Bruce E. Rittmann
Publikováno v:
Biodegradation. 23:525-534
Accidental release of plutonium (Pu) from storage facilities in the subsurface environment is a concern for the safety of human beings and the environment. Given the complexity of the subsurface environment and multivalent state of Pu, we developed a
Publikováno v:
Biodegradation. 22:921-929
Plutonium (Pu), a key contaminant at sites associated with the manufacture of nuclear weapons and with nuclear-energy wastes, can be precipitated to "immobilized" plutonium phases in systems that promote bioreduction. Ferric iron (Fe(3+)) is often pr
Publikováno v:
Environmental Science & Technology. 44:4930-4935
We systematically quantified surface complexation of Np(V) onto whole cells, cell wall, and extracellular polymeric substances (EPS) of Shewanella alga strain BrY. We first performed acid and base titrations and used the mathematical model FITEQL to
Autor:
Randhir P. Deo, Rolf U. Halden
Publikováno v:
J. Environ. Monit.. 12:478-483
Accurate quantification of organic wastewater compounds (OWCs) is essential for assessing their removal efficiency in wastewater treatment plants (WWTPs) and for calculating discharge rates into effluent-receiving surface waters. In this study, we un
Autor:
Randhir P. Deo, Michael K. Richmann, Donald T. Reed, Bruce E. Rittmann, Sarah E. Pepper, Geof Smith
Publikováno v:
Journal of Alloys and Compounds. :376-382
Bio-mediated reduction of multivalent actinide contaminants plays an important role in their fate and transport in the subsurface. To initiate the process of extending recent progress in uranium biogeochemistry to plutonium, a side-by-side comparison
Publikováno v:
Electroanalysis. 17:417-422
A single carbon fiber microelectrode modified with multi-wall carbon nanotubes (MWCNT) and Nafion exhibits an attractive electroanalytical performance for enhanced voltammetric detection of dopamine in the presence of ascorbate at physiological pH. T
Autor:
Randhir P. Deo, Wilfred Chen, Fritz Scholz, Ines Block, Kanchan A. Joshi, Yuehe Lin, Joseph Wang, Marek Trojanowicz, Ashok Mulchandani
Publikováno v:
Analytica Chimica Acta. 530:185-189
An amperometric biosensor for oganophosphorus (OP) pesticides based on a carbon nanotube (CNT)-modified transducer and an organophosphorus hydrolase (OPH) biocatalyst is described. A bilayer approach with the OPH layer atop of the CNT film was used f
Publikováno v:
Electroanalysis. 17:65-72
The electrochemical activity of five different commercial carbon nanotubes (CNT), prepared by the ARC discharge and chemical vapor deposition (CVD) methods, has been assessed and compared. The various multi-walled CNT were immobilized onto a glassy c
Publikováno v:
Analytica Chimica Acta. 517:131-137
Carbon nanotube (CNT) modified glassy carbon electrodes exhibiting a strong and stable electrocatalytic response towards sulfide are described. A substantial (400 mV) decrease in the overvoltage of the sulfide oxidation reaction (compared to ordinary