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您的检索式：作者名="Mark Servos"
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| 1 | Hydrothermal growth of free standing TiO 2 nanowire membranes for photocatalytic degradation of pharmaceuticals显示文摘 | Anming Hu Xu Zhang Ken D. Oakes Peng Peng Y. Norman Zhou Mark R. Servos | 2011 | Journal of Hazardous Materials2011，，1： | 1 |
| 2 | Gold nanoparticles as dehydrogenase mimicking nanozymes for estradiol degradation显示文摘Nanozyme catalysis has been mainly focused on a few chromogenic and fluorogenic substrates, while environmentally and biologically important compounds need to be tested to advance the field. In this work, we studied oxidation of estradiol(E2) in the presence of various nanomaterials including gold nanoparticles(AuNPs), nanoceria(CeO2), Fe3O4, Fe2O3, MnO2 and Mn2O3, and found that AuNPs had a dehydrogenase-mimicking activity to convert E2 to estrone(E1). This conversion was monitored using HPLC. The reaction was faster at higher pH and reached saturation at pH 8. Smaller AuNPs had a higher catalytic efficiency and 5 nm AuNPs were 4.8-fold faster than 13 nm at the same total surface area. Finally,we tried 17α-ethinylestradiol(EE2) as a substrate and found that 5 nm AuNPs can catalyze EE2 oxidation in the presence of H2O2. This work indicated that some nanomaterials can affect environmentally important hormones via oxidation reactions, and this study has expanded the scope of substrate of nanozymes. | Zijie Zhang Leslie M. Bragg Mark R. Servos Juewen Liu | 2019 | Chinese Chemical Letters2019，30，9： | 1 |
| 3 | Comparison of approaches to quantify SARS-CoV-2 in wastewater using RT-qPCR: Results and implications from a collaborative inter-laboratory study in Canada显示文摘Detection of SARS-CoV-2 RNA in wastewater is a promising tool for informing public health decisions during the COVID-19 pandemic.However,approaches for its analysis by use of reverse transcription quantitative polymerase chain reaction(RT-q PCR)are still far from standardized globally.To characterize inter-and intra-laboratory variability among results when using various methods deployed across Canada,aliquots from a real wastewater sample were spiked with surrogates of SARS-CoV-2(gamma-radiation inactivated SARS-CoV-2 and human coronavirus strain 229E[HCoV-229E])at low and high levels then provided'blind'to eight laboratories.Concentration estimates reported by individual laboratories were consistently within a 1.0-log_(10) range for aliquots of the same spiked condition.All laboratories distinguished between low-and high-spikes for both surrogates.As expected,greater variability was observed in the results amongst laboratories than within individual laboratories,but SARS-CoV-2 RNA concentration estimates for each spiked condition remained mostly within 1.0-log_(10) ranges.The no-spike wastewater aliquots provided yielded non-detects or trace levels(<20 gene copies/mL)of SARS-CoV-2 RNA.Detections appear linked to methods that included or focused on the solids fraction of the wastewater matrix and might represent in-situ SARS-CoV-2 to the wastewater sample.HCoV-229E RNA was not detected in the no-spike aliquots.Overall,all methods yielded comparable results at the conditions tested.Partitioning behavior of SARS-CoV-2 and spiked surrogates in wastewater should be considered to evaluate method effectiveness.A consistent method and laboratory to explore wastewater SARS-CoV-2 temporal trends for a given system,with appropriate quality control protocols and documented in adequate detail should succeed. | Alex H.S.Chik Melissa B.Glier Mark Servos Chand S.Mangat Xiao-Li Pang Yuanyuan Qiu Patrick M.D’Aoust Jean-Baptiste Burnet Robert Delatolla Sarah Dorner Qiudi Geng John P.Giesy Jr Robert Mike McKay Michael R.Mulvey Natalie Prystajecky Nivetha Srikanthan Yuwei Xie Bernadette Conant Steve E.Hrudey Canadian SARS-CoV-Inter-Laboratory Consortium | 2021 | Journal of Environmental Sciences2021，33，9： | 0 |
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