Search Results - "Simpson, André J"

Environmental Nuclear Magnetic Resonance Spectroscopy: An Overview and a Primer by Simpson, André J, Simpson, Myrna J, Soong, Ronald

“…NMR spectroscopy is a versatile tool for the study of structure and interactions in environmental media such as air, soil, and water as well as monitoring the…”
Get full text

Soil warming and nitrogen deposition alter soil organic matter composition at the molecular-level by Pisani, Oliva, Frey, Serita D, Simpson, André J, Simpson, Myrna J

“…Rising temperatures and nitrogen (N) deposition, both aspects of global environmental change, are proposed to alter soil organic matter (SOM) biogeochemistry…”
Get full text

Metabolomic responses to sublethal contaminant exposure in neonate and adult Daphnia magna by Wagner, Nicole D., Simpson, André J., Simpson, Myrna J.

“…The use of consumer products and pharmaceuticals that act as contaminants entering waterways through runoff and wastewater effluents alters aquatic ecosystem…”
Get full text

Metabolomics reveals energetic impairments in Daphnia magna exposed to diazinon, malathion and bisphenol-A by Nagato, Edward G., Simpson, André J., Simpson, Myrna J.

“…•Metabolomics detected shifts with sub-lethal exposure to contaminants.•Diazinon and malathion induced comparable, non-linear responses.•Bisphenol-A resulted…”
Get full text

Soil Organic Matter in Its Native State: Unravelling the Most Complex Biomaterial on Earth by Masoom, Hussain, Courtier-Murias, Denis, Farooq, Hashim, Soong, Ronald, Kelleher, Brian P, Zhang, Chao, Maas, Werner E, Fey, Michael, Kumar, Rajeev, Monette, Martine, Stronks, Henry J, Simpson, Myrna J, Simpson, André J

“…Since the isolation of soil organic matter in 1786, tens of thousands of publications have searched for its structure. Nuclear magnetic resonance (NMR)…”
Get full text

The Chemical Ecology of Soil Organic Matter Molecular Constituents by Simpson, Myrna J., Simpson, André J.

“…Soil organic matter (OM) contains vast stores of carbon, and directly supports microbial, plant, and animal life by retaining essential nutrients and water in…”
Get full text

Development and Application of a Low-Volume Flow System for Solution-State in Vivo NMR by Tabatabaei Anaraki, Maryam, Dutta Majumdar, Rudraksha, Wagner, Nicole, Soong, Ronald, Kovacevic, Vera, Reiner, Eric J, Bhavsar, Satyendra P, Ortiz Almirall, Xavier, Lane, Daniel, Simpson, Myrna J, Heumann, Hermann, Schmidt, Sebastian, Simpson, André J

“…In vivo nuclear magnetic resonance (NMR) spectroscopy is a particularly powerful technique, since it allows samples to be analyzed in their natural, unaltered…”
Get full text

1-D and 2-D NMR-based metabolomics of earthworms exposed to endosulfan and endosulfan sulfate in soil by Yuk, Jimmy, Simpson, Myrna J., Simpson, André J.

“…One-dimensional (1-D) and two-dimensional (2-D) nuclear magnetic resonance (NMR)-based metabolomics was used to investigate the toxic mode of action (MOA) of…”
Get full text

HILIC-NMR: Toward the Identification of Individual Molecular Components in Dissolved Organic Matter by Woods, Gwen C, Simpson, Myrna J, Koerner, Philip J, Napoli, Antonia, Simpson, André J

“…This article presents research targeted toward the isolation and detection of unique molecular structures from what is believed to be the world’s most complex…”
Get full text

The concentration of dissolved organic matter impacts the metabolic response in Daphnia magna exposed to 17α-ethynylestradiol and perfluorooctane sulfonate by Kovacevic, Vera, Simpson, André J., Simpson, Myrna J.

“…The pharmaceutical 17α-ethynylestradiol (EE2) and the industrial chemical perfluorooctane sulfonate (PFOS) are organic contaminants frequently detected in…”
Get full text

Altered microbial community structure and organic matter composition under elevated CO2 and N fertilization in the duke forest by FENG, XIAOJUAN, SIMPSON, ANDRÉ J., SCHLESINGER, WILLIAM H., SIMPSON, MYRNA J.

“…The dynamics and fate of terrestrial organic matter (OM) under elevated atmospheric CO2 and nitrogen (N) fertilization are important aspects of long‐term…”
Get full text

Analysis of DOM phototransformation using a looped NMR system integrated with a sunlight simulator by Dutta Majumdar, Rudraksha, Bliumkin, Liora, Lane, Daniel, Soong, Ronald, Simpson, Myrna, Simpson, André J.

“…Photochemical transformation plays an important role in functionalizing and degrading dissolved organic matter (DOM), producing one of the most complex…”
Get full text

Sublethal metabolic responses to contaminant mixture toxicity in Daphnia magna by Wagner, Nicole D., Simpson, André J., Simpson, Myrna J.

“…Anthropogenic activity is increasing the presence of contaminants that enter waterways through wastewater effluent and urban and/or agricultural runoff,…”
Get full text

Differences in Riverine and Pond Water Dissolved Organic Matter Composition and Sources in Canadian High Arctic Watersheds Affected by Active Layer Detachments by Wang, Jun-Jian, Lafrenière, Melissa J, Lamoureux, Scott F, Simpson, André J, Gélinas, Yves, Simpson, Myrna J

“…Regional warming has caused permafrost thermokarst and disturbances, such as active layer detachments (ALDs), which may alter carbon feedback in Arctic…”
Get full text

Interactions of Poly(amidoamine) Dendrimers with Human Serum Albumin: Binding Constants and Mechanisms by Giri, Jyotsnendu, Diallo, Mamadou S, Simpson, André J, Liu, Yi, Goddard, William A, Kumar, Rajeev, Woods, Gwen C

“…The interactions of nanomaterials with plasma proteins have a significant impact on their in vivo transport and fate in biological fluids. This article…”
Get full text

SASSY NMR: Simultaneous Solid and Solution Spectroscopy by Ghosh Biswas, Rajshree, Soong, Ronald, Jenne, Amy, Bastawrous, Monica, Simpson, Myrna J., Simpson, André J.

“…Synergism between different phases gives rise to chemical, biological or environmental reactivity, thus it is increasingly important to study samples intact…”
Get full text

Comparison of metabolomic responses of earthworms to sub-lethal imidacloprid exposure in contact and soil tests by Dani, Vivek D., Lankadurai, Brian P., Nagato, Edward G., Simpson, André J., Simpson, Myrna J.

“…Eisenia fetida earthworms were exposed to sub-lethal levels of imidacloprid for 48 h via contact filter paper tests and soil tests. After the exposure, 1 H…”
Get full text

Metabolic Profiling Using In Vivo High Field Flow NMR by Anaraki, Maryam Tabatabaei, Lane, Daniel, Bastawrous, Monica, Jenne, Amy, Simpson, André J

“…In vivo NMR (nuclear magnetic resonance) has the potential to monitor and record metabolic flux in close to real time, which is essential for better…”
Get more information

Development of an in Situ NMR Photoreactor To Study Environmental Photochemistry by Bliumkin, Liora, Dutta Majumdar, Rudraksha, Soong, Ronald, Adamo, Antonio, Abbatt, Jonathan P. D, Zhao, Ran, Reiner, Eric, Simpson, André J

“…Photochemistry is a key environmental process directly linked to the fate, source, and toxicity of pollutants in the environment. This study explores two…”
Get full text

Direct Conversion of McDonald’s Waste Cooking Oil into a Biodegradable High-Resolution 3D-Printing Resin by Wu, Bing, Sufi, Atiqurrehman, Ghosh Biswas, Rajshree, Hisatsune, Arika, Moxley-Paquette, Vincent, Ning, Paris, Soong, Ronald, Dicks, Andrew P, Simpson, André J

“…Used cooking oil disposal is a concern at the global scale. Direct disposal from domestic households and restaurants via drains can result in serious…”
Get full text