Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Udonna Ndu"'
Autor:
Cristian P Schulthess, Udonna Ndu
Publikováno v:
PLoS ONE, Vol 12, Iss 5, p e0176743 (2017)
Simultaneous adsorption modeling of four ions was predicted with a strict net charge-neutral ion-exchange theory and its corresponding equilibrium and mass balance equations. An important key to the success of this approach was the proper collection
Externí odkaz:
https://doaj.org/article/62b05612488040eba8ff18e043ab4a2c
Autor:
Udonna Ndu, Tamar Barkay, Robert P Mason, Amina Traore Schartup, Radwan Al-Farawati, Jie Liu, John R Reinfelder
Publikováno v:
PLoS ONE, Vol 10, Iss 9, p e0138333 (2015)
As mercury (Hg) biosensors are sensitive to only intracellular Hg, they are useful in the investigation of Hg uptake mechanisms and the effects of speciation on Hg bioavailability to microbes. In this study, bacterial biosensors were used to evaluate
Externí odkaz:
https://doaj.org/article/87d325d16af84cdc88ad3c81fab9855d
Publikováno v:
Environ Sci Technol
Mercury is a risk in aquatic ecosystems when the metal is converted to methylmercury (MeHg) and subsequently bioaccumulates in aquatic food webs. This risk can be difficult to manage because of the complexity of biogeochemical processes for mercury a
Autor:
Farzaneh Nahari Alishah, Hossein Kari Dolatabad, Udonna Ndu, Ali Sorooshzadeh, Marzieh Safari, Cristian P. Schulthess
Publikováno v:
Journal of Plant Nutrition and Soil Science. 182:463-476
Autor:
Sarah E. Janssen, Patrick G. R. Jodice, Udonna Ndu, Yvan G. Satgé, Juliet S. Lamb, Rosalie Rossi
Publikováno v:
Environmental Monitoring and Assessment. 192
Several trace metals and metalloids have been introduced into aquatic ecosystems due to anthropogenic activities. Some of these elements like mercury (in the form of methylmercury) are easily transferred from one trophic level to another and can accu
Publikováno v:
Acta Physiologiae Plantarum. 42
Plant–bacteria interactions and plant nutrition have been exploited to abate the harmful effects of cadmium (Cd) on the germination of wheat cultivars. This study investigated the effects of Pseudomonas species and zinc (Zn) on the germination of w
Publikováno v:
Biodegradation. 27:29-36
Mercury resistant bacteria play a critical role in mercury biogeochemical cycling in that they convert methylmercury (MeHg) and inorganic mercury to elemental mercury, Hg(0). To date there are very few studies on the effects of speciation and bioavai
Autor:
Heileen Hsu-Kim, Udonna Ndu, Geoff A. Christensen, Dwayne A. Elias, Caitlin M. Gionfriddo, Marc A. Deshusses, Nelson Rivera
Publikováno v:
Environmental Science & Technology
Mercury-contaminated sediment and water contain various Hg species, with a small fraction available for microbial conversion to the bioaccumulative neurotoxin monomethylmercury (MeHg). Quantification of this available Hg pool is needed to prioritize
Publikováno v:
Environmental Science & Technology. 49:5965-5972
Methylmercury (MeHg) is the only species of mercury (Hg) to biomagnify in aquatic food-webs to levels that are a widespread concern for human and ecological health. Here we investigate the association between dissolved organic matter (DOM) in seawate
Autor:
Cristian P. Schulthess, Udonna Ndu
Publikováno v:
Soil Science Society of America Journal. 78:465-472