A5011296216- Nanoparticles: synthesis and applications
- Advanced Nanomaterials in Catalysis
- Meteorological Phenomena and Simulations
- Forest ecology and management
- Microbial Community Ecology and Physiology
- History and advancements in chemistry
- Aeolian processes and effects
- TiO2 Photocatalysis and Solar Cells
- Water Quality Monitoring and Analysis
- Peatlands and Wetlands Ecology
- Air Quality Monitoring and Forecasting
- Fire effects on ecosystems
- Archaeological and Geological Studies
- Soil erosion and sediment transport
- Electrochemical Analysis and Applications
- Animal and Plant Science Education
- Coastal wetland ecosystem dynamics
- Digital and Cyber Forensics
- Biochemical Analysis and Sensing Techniques
- Graphene and Nanomaterials Applications
- Environmental DNA in Biodiversity Studies
- Healthcare and Environmental Waste Management
- Tropical and Extratropical Cyclones Research
- Bryophyte Studies and Records
- Ancient Mediterranean Archaeology and History
Northwestern University
2015-2020
Previous studies on the toxicity of engineered nanomaterials (ENMs) have been primarily based testing individual ENMs, so little is known about interactions and combined multiple ENMs. In this study chemically stable nano-TiO2 soluble nano-ZnO was investigated individually in combination, by monitoring bacterial cell membrane integrity ATP levels a natural aqueous medium (Lake Michigan water). Both damage membranes under simulated solar irradiation (SSI), but their phototoxicity not...
Due to their widespread use and subsequent release, engineered nanomaterials (ENMs) will create complex mixtures emergent systems in the natural environment where chemical interactions may cause toxic stress microorganisms. We previously showed that under dark conditions n-TiO2 attenuated bacterial caused by low concentrations of n-Ag (<20 μg L–1) due Ag+ adsorption, yet, since both are photoactive, photochemistries play a key role interactions. In this work, we study aqueous medium...
Researchers collected soil and ash after the 2020 wildfires in Chernobyl Exclusion Zone. Chemical tests suggested that fires made it easier for contaminants to wash into nearby rivers.
Engineered nanomaterials (ENMs) are incorporated into thousands of commercial products, and their release environmental systems creates complex mixtures with unknown toxicological outcomes. To explore this scenario, we probe the chemical interactions nanosilver (n-Ag) nanotitania (n-TiO2) in Lake Michigan water, a natural aqueous medium, under dark conditions. We find that presence n-Ag induces stress response Escherichia coli, as indicated by decrease ATP production observed at low...
ADVERTISEMENT RETURN TO ISSUEPREVThe HubNEXTPortable Spectrometers Give On-Site Drug Testing a BoostThese commercially available instruments stand to combat user error, reliability issues, and false positives.Carolyn WilkeCarolyn WilkeMore by Carolyn WilkeCite this: ACS Cent. Sci. 2023, 9, 2, 124–127Publication Date (Web):February 7, 2023Publication History Published online7 February 2023Published inissue 22 2023https://doi.org/10.1021/acscentsci.3c00121Copyright © 2023 American Chemical...
Light influences chemical interactions of engineered nanomaterials and their toxic effects. Under simulated solar irradiation, we observed that binary mixtures n-Ag, n-Au, or n-Pt with n-TiO<sub>2</sub>cause synergistic effects in<italic>E. coli</italic>due to photochemical governed by metal nanoparticle stability localized surface plasmon resonance.
Under the oxidizing conditions produced by n-TiO<sub>2</sub> and irradiation, n-Ag<sub>2</sub>S is unstable provokes significant microbial stress.
ADVERTISEMENT RETURN TO ISSUEPREVThe HubNEXTProteomics Offers New Clues for Forensic InvestigationsAnalyzing proteins in bones, blood, and other biological samples can answer questions that DNA can't.Carolyn WilkeCarolyn WilkeMore by Carolyn WilkeCite this: ACS Cent. Sci. 2021, 7, 10, 1595–1598Publication Date (Web):October 18, 2021Publication History Published online18 October 2021Published inissue 27...
When waves hit vegetated dunes, waterlogged areas form in front of plants, making for sand that’s easier to wash away. But you still need plants dunes the first place.
ADVERTISEMENT RETURN TO ARTICLES ASAPCenter StageNEXTA Conversation with Noah WhitemanThe evolutionary biologist's new book explores how humans have used plant poisons for spices, medicines, and more.Carolyn WilkeCarolyn WilkeMore by Carolyn WilkeCite this: ACS Cent. Sci. 2024, XXXX, XXX, XXX-XXXPublication Date (Web):March 29, 2024Publication History Published online29 March 2024https://doi.org/10.1021/acscentsci.4c00431© 2024 American Chemical Society. This publication is licensed under...
Un caluroso día de julio 1986, un helicóptero canal noticias estaba grabando festival en Minneapolis cuando el piloto y fotógrafo vieron tornado sobre Brooklyn Park. Se dirigieron hacia él filmaron potente durante 25 minutos, hipnotizando a los espectadores que lo veían directo por televisión. LEA MÁS Tecnología ¿Podrían cometas alto vuelo suministrar la energía su hogar? Los aerogeneradores podrían coexistir pacíficamente con murciélagos aves Alimentos ambiente La ciencia del clima se apoya...
Early Earth’s volcanoes could have spurred lightning that transformed atmospheric nitrogen, creating molecules would been necessary for life to emerge.
Standing dead trees—or snags—shelter animals, store carbon, and cycle nutrients. A long-term monitoring study found that lopping off a tree’s top branches is good way to turn it into snag within about 20 years.
Rainfall data alone can’t predict where malaria may pop up. Factoring in hydrological processes helps researchers paint a more nuanced picture of transmission.
Smoke-covered lakes see shifts in biological and energy processes that influence food webs, carbon storage, more.
Dense populations, aerosols, and cities’ tendency to raise temperatures contribute higher levels of precipitation in urban areas than surrounding rural areas.
ADVERTISEMENT RETURN TO ISSUECenter StageNEXTA Conversation with Eri SaikawaWith Atlanta residents' help, the Emory University environmental scientist uncovered lead-contaminated soil near their homes.Carolyn WilkeCarolyn WilkeMore by Carolyn WilkeCite this: ACS Cent. Sci. 2023, 9, 1, 1–2Publication Date (Web):January 10, 2023Publication History Published online10 January 2023Published inissue 25 2023https://doi.org/10.1021/acscentsci.2c01545Copyright © 2023 American Chemical SocietyRIGHTS &...
ADVERTISEMENT RETURN TO ISSUEPREVThe HubNEXTClimate Change Could Alter Undersea Chemical CommunicationOcean acidification could tamper with marine animals' sense of smell and the shape signaling molecules.Carolyn WilkeCarolyn WilkeMore by Carolyn WilkeCite this: ACS Cent. Sci. 2021, 7, 1091–1094Publication Date (Web):July 15, 2021Publication History Published online15 July 2021Published inissue 28...
ADVERTISEMENT RETURN TO ISSUECenter StageNEXTA Conversation with Richard CorsiUniversity of California, Davis, air quality expert discusses the complexity cleaning indoor air.Carolyn WilkeCarolyn WilkeMore by Carolyn WilkeCite this: ACS Cent. Sci. 2022, 8, 5, 502–503Publication Date (Web):May 10, 2022Publication History Published online10 May 2022Published inissue 25 2022https://pubs.acs.org/doi/10.1021/acscentsci.2c00500https://doi.org/10.1021/acscentsci.2c00500newsACS PublicationsCopyright...
An ice core from Europe’s highest peak contains scent-imparting molecules whose trends mirror the Soviet Union’s economic ups and downs.
To trace how crucial ingredients for life arrived at Earth, scientists track noble gases. Now, improved methods are drawing new clues from krypton, the most cryptic of