Mark R. Servos
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View article: Pharmaceuticals and personal care products in wastewaters
Pharmaceuticals and personal care products in wastewaters Open
Pharmaceuticals and personal care products in wastewaters Despite progress in wastewater treatment, PPCPs like medications and personal care products continue to enter ecosystems, threatening aquatic life. Since 2020, the Bow River Ecosyst…
View article: One for all and all for one health: Harmonizing SARS-CoV-2 wastewater surveillance results across a laboratory network
One for all and all for one health: Harmonizing SARS-CoV-2 wastewater surveillance results across a laboratory network Open
Reliable and comparable data from multiple laboratories are essential for networks relying on reverse transcription quantitative polymerase chain reaction (RT-qPCR)-based surveillance of severe acute respiratory syndrome coronavirus 2 (SAR…
View article: Variability of Clinical Metrics in Small Population Communities Drive Perceived Wastewater and Environmental Surveillance Data Quality: Ontario, Canada-Wide Study
Variability of Clinical Metrics in Small Population Communities Drive Perceived Wastewater and Environmental Surveillance Data Quality: Ontario, Canada-Wide Study Open
The emergence of COVID-19 in Canada has led to over 4.9 million cases and 59,000 deaths by May 2024. Traditional clinical surveillance metrics (hospital admissions and clinical laboratory-positive cases) were complemented with wastewater a…
View article: Unleashing the Power of Potassium 2-Ethylhexanoate as a Mild and Soluble Base for Pd-catalyzed C-N Cross-Coupling
Unleashing the Power of Potassium 2-Ethylhexanoate as a Mild and Soluble Base for Pd-catalyzed C-N Cross-Coupling Open
The formation of C-N bonds by Pd-catalyzed cross-coupling is one of the most widely practiced reactions in chemical synthesis. Typical reaction conditions involve either a strong base, which limits the scope of substrates, or an insoluble,…
View article: The Slow Pandemic: Emergence of Antimicrobial Resistance in the Postadvent of SARS‐CoV‐2 Pandemic
The Slow Pandemic: Emergence of Antimicrobial Resistance in the Postadvent of SARS‐CoV‐2 Pandemic Open
Background: The unprecedented outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) pandemic has dramatically changed the global approach to public health, emphasizing the importance of measures to control and preven…
View article: SARS-CoV-2 viral titer measurements in Ontario, Canada wastewaters throughout the COVID-19 pandemic
SARS-CoV-2 viral titer measurements in Ontario, Canada wastewaters throughout the COVID-19 pandemic Open
During the COVID-19 pandemic, the Province of Ontario, Canada, launched a wastewater surveillance program to monitor SARS-CoV-2, inspired by the early work and successful forecasts of COVID-19 waves in the city of Ottawa, Ontario. This man…
View article: Electrochemical techniques for uranium extraction from water
Electrochemical techniques for uranium extraction from water Open
Electrochemical removal of uranium from water is an emerging topic that addresses the treatment of drinking water, remediation of contaminated sites, and mining from seawater. Electrochemical strategies compare favorably to conventional pr…
View article: Venlafaxine exposure alters mitochondrial respiration and mitomiR abundance in zebrafish brains
Venlafaxine exposure alters mitochondrial respiration and mitomiR abundance in zebrafish brains Open
Wastewater treatment plant (WWTP) effluent often releases pharmaceuticals like venlafaxine (a serotonin–norephinephrine reuptake inhibitor antidepressant) to freshwater ecosystems at levels causing adverse metabolic effects on fish. Change…
View article: Electrochemical Techniques for Uranium Extraction from Water
Electrochemical Techniques for Uranium Extraction from Water Open
Electrochemical removal of uranium from water is an emerging topic that addresses the treatment of drinking water, remediation of contaminated sites, and mining from seawater. Electrochemical strategies compare favorably to conventional pr…
View article: Solid-liquid distribution of SARS-CoV-2 in primary effluent of a wastewater treatment plant
Solid-liquid distribution of SARS-CoV-2 in primary effluent of a wastewater treatment plant Open
Distributions of Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) and fecal viral biomarkers between solid and liquid phases of wastewater are largely unknown. Herein, distributions of SARS-CoV-2, Pepper Mild Mottle Virus (PMMo…
View article: Microparticles in Wild and Caged Biota, Sediments, and Water Relative to Large Municipal Wastewater Treatment Plant Discharges
Microparticles in Wild and Caged Biota, Sediments, and Water Relative to Large Municipal Wastewater Treatment Plant Discharges Open
Anthropogenically modified microparticles including microplastics are present in municipal wastewater treatment plant (WWTP) effluents; however, it is unclear whether biotic exposures are elevated downstream of these outfalls. In the fall …
View article: Identifying transcriptomic indicators of tertiary treated municipal effluent in longnose dace (Rhinichthys cataractae) caged under semi-controlled conditions in experimental raceways
Identifying transcriptomic indicators of tertiary treated municipal effluent in longnose dace (Rhinichthys cataractae) caged under semi-controlled conditions in experimental raceways Open
To evaluate effects of tertiary treated wastewater treatment plant effluent (MWWE) on transcriptomic responses in longnose dace (Rhinichthys cataractae; LND) we conducted a semi-controlled study in experimental raceways (Advancing Canadian…
View article: Real-time evaluation of signal accuracy in wastewater surveillance of pathogens with high rates of mutation
Real-time evaluation of signal accuracy in wastewater surveillance of pathogens with high rates of mutation Open
View article: Emergence and spread of SARS-CoV-2 variants of concern in Canada: a retrospective analysis from clinical and wastewater data
Emergence and spread of SARS-CoV-2 variants of concern in Canada: a retrospective analysis from clinical and wastewater data Open
Background The spread of SARS-CoV-2 has been studied at unprecedented levels worldwide. In jurisdictions where molecular analysis was performed on large scales, the emergence and competition of numerous SARS-CoV-2lineages have been observe…
View article: Accelerated cascade melanoma therapy using enzyme-nanozyme-integrated dissolvable polymeric microneedles
Accelerated cascade melanoma therapy using enzyme-nanozyme-integrated dissolvable polymeric microneedles Open
Dissolvable polymeric microneedles (DPMNs) have emerged as a powerful technology for the localized treatment of diseases, such as melanoma. Herein, we fabricated a DPMN patch containing a potent enzyme-nanozyme composite that transforms th…
View article: Rapid Spread of Omicron Sub-Lineage as Evidence by Wastewater Surveillance
Rapid Spread of Omicron Sub-Lineage as Evidence by Wastewater Surveillance Open
The search for better tools for interpreting and understanding wastewater surveillance has continued since the beginning of the coronavirus disease 2019 (COVID-19) pandemic. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has …
View article: Wastewater-Based Surveillance of Sars-Cov-2: Short-Term Projection, Smoothing and Outlier Identification Using Bayesian Smoothing
Wastewater-Based Surveillance of Sars-Cov-2: Short-Term Projection, Smoothing and Outlier Identification Using Bayesian Smoothing Open
View article: Rainbow Trout Rapidly Recover from Exposure to Niclosamide: A Piscicide and Molluscicide Used to Control Sea Lamprey and Snail Populations
Rainbow Trout Rapidly Recover from Exposure to Niclosamide: A Piscicide and Molluscicide Used to Control Sea Lamprey and Snail Populations Open
View article: Emergence of Monkeypox, Polio, Influenza and Respiratory Syncytial Virus in Wastewater: Potential for Sewershed-Level Surveillance of Viral Disease
Emergence of Monkeypox, Polio, Influenza and Respiratory Syncytial Virus in Wastewater: Potential for Sewershed-Level Surveillance of Viral Disease Open
View article: Effects of Substituting Activated Carbon with Titanium-Dioxide-Coated Cenospheres in Conventional Aquarium Filters
Effects of Substituting Activated Carbon with Titanium-Dioxide-Coated Cenospheres in Conventional Aquarium Filters Open
We investigated the effectiveness of TiO2 cenospheres in reducing the concentrations of three common harmful compounds, ammonium, nitrate, and nitrite, in fish aquariums. These cenospheres can contribute to more sustainable and eco-friendl…
View article: Assessment of seasonality and normalization techniques for wastewater-based surveillance in Ontario, Canada
Assessment of seasonality and normalization techniques for wastewater-based surveillance in Ontario, Canada Open
Introduction Wastewater-based surveillance is at the forefront of monitoring for community prevalence of COVID-19, however, continued uncertainty exists regarding the use of fecal indicators for normalization of the SARS-CoV-2 virus in was…
View article: Omicron COVID-19 Case Estimates Based on Previous SARS-CoV-2 Wastewater Load, Regional Municipality of Peel, Ontario, Canada
Omicron COVID-19 Case Estimates Based on Previous SARS-CoV-2 Wastewater Load, Regional Municipality of Peel, Ontario, Canada Open
We determined correlations between SARS-CoV-2 load in untreated water and COVID-19 cases and patient hospitalizations before the Omicron variant (September 2020-November 2021) at 2 wastewater treatment plants in the Regional Municipality o…
View article: Wastewater surveillance monitoring of SARS-CoV-2 variants of concern and dynamics of transmission and community burden of COVID-19
Wastewater surveillance monitoring of SARS-CoV-2 variants of concern and dynamics of transmission and community burden of COVID-19 Open
Wastewater-based surveillance is a valuable approach for monitoring COVID-19 at community level. Monitoring SARS-CoV-2 variants of concern (VOC) in wastewater has become increasingly relevant when clinical testing capacity and case-based s…
View article: A comparative analysis of the partitioning behaviour of SARS-CoV-2 RNA in liquid and solid fractions of wastewater
A comparative analysis of the partitioning behaviour of SARS-CoV-2 RNA in liquid and solid fractions of wastewater Open
View article: Understanding common population markers for SARS-CoV-2 RNA normalization in wastewater – A review
Understanding common population markers for SARS-CoV-2 RNA normalization in wastewater – A review Open
View article: An improved method for determining frequency of multiple variants of SARS-CoV-2 in wastewater using qPCR assays
An improved method for determining frequency of multiple variants of SARS-CoV-2 in wastewater using qPCR assays Open
View article: A wastewater-based risk index for SARS-CoV-2 infections among three cities on the Canadian Prairie
A wastewater-based risk index for SARS-CoV-2 infections among three cities on the Canadian Prairie Open
View article: Realizing the value in “non-standard” parts of the qPCR standard curve by integrating fundamentals of quantitative microbiology
Realizing the value in “non-standard” parts of the qPCR standard curve by integrating fundamentals of quantitative microbiology Open
The real-time polymerase chain reaction (PCR), commonly known as quantitative PCR (qPCR), is increasingly common in environmental microbiology applications. During the COVID-19 pandemic, qPCR combined with reverse transcription (RT-qPCR) h…
View article: Identifying Transcriptomic Indicators of Tertiary Treated Municipal Effluent in Longnose Dace (Rhinichthys Cataractae) Caged Under Semi-Controlled Conditions in Experimental Raceways
Identifying Transcriptomic Indicators of Tertiary Treated Municipal Effluent in Longnose Dace (Rhinichthys Cataractae) Caged Under Semi-Controlled Conditions in Experimental Raceways Open
View article: Implementing an Adaptive, Two-Tiered Sars-Cov-2 Wastewater Surveillance Program on a University Campus Using Passive Sampling
Implementing an Adaptive, Two-Tiered Sars-Cov-2 Wastewater Surveillance Program on a University Campus Using Passive Sampling Open