Results 91 to 100 of about 52,957 (305)

Single‐Particle Mid‐Infrared Photothermal Imaging Reveals Hidden Heterogeneity in Real‐World Micro‐ and Nanoplastics

Advanced Science, EarlyView.
Mid‐infrared photothermal imaging enables multidimensional profiling of micro‐ and nanoplastics in bottled water. A total of 9.9 × 104 particles L−1 is detected, with 64% in the nanoscale regime. Spectral evolution, including peak narrowing and band shifts, reveals local chain reorganization in polyethylene terephthalate (PET), highlighting intrinsic ...
Xinyu Deng, Yongqing Zhang, Xiaobin Tang, Hyeon Jeong Lee, Delong Zhang   +4 more
wiley   +1 more source

Bacterial-viral interactions in the sea surface microlayer of a black carbon-dominated tropical coastal ecosystem (Halong Bay, Vietnam)

Elementa: Science of the Anthropocene, 2018
Increasing human activity has raised concerns about the impact of deposition of anthropogenic combustion aerosols (i.e., black carbon; BC) on marine processes. The sea surface microlayer (SML) is a key gate for the introduction of atmospheric BC into the
A. S. Pradeep Ram, X. Mari, J. Brune, J. P. Torréton, V. T. Chu, P. Raimbault, J. Niggemann, T. Sime-Ngando   +7 more
doaj   +1 more source

Terrestrial and fluvial carbon fluxes in a tropical watershed: Nyong basin, Cameroon [PDF]

, 2009
The Nyong watershed, with an area of 27 800 km2 and a mean annual discharge of 390 m3 s−1, is the second largest river in Cameroon. The Nyong watershed serves as an outstanding study area for the examination of carbon fluxes in humid tropical ...
Ndondo, G. R. N., Ndam-Ngoupayou, Jules-Rémy, Brunet, F., Boeglin, Jean-Loup, Probst, J.L., Brunet, Frédéric, Nkoue Ndondo, Gustave Raoul, Ngoupayou, J. R. N., Probst, Jean-Luc, Veizer, J., Dubois, K., Dubois, Krystel, Veizer, Jan   +12 more
core   +1 more source

Advanced Dental Composite Technology via Bisilanized Dual‐Action Nanofillers for Biofilm Control

Advanced Science, EarlyView.
A multimodal research strategy has led to the development of an innovative resin‐based composite (RBC) with dual antibacterial action. The S_CM‐RBC formula showed strong antibiofilm activity, excellent mechanical strength, and biosafety. It effectively controlled oral bacteria in prevention of caries recurrence, and maintained pulp health in a rat ...
Chenmin Yao, Line Etiennot, Naiera Zayed, Shengjie Liang, Mehraveh Saghi, Jelle Verdonck, Lingyue Liu, Fei Zhang, Wim Teughels, Cui Huang, Kirsten Van Landuyt, Bart Van Meerbeek   +11 more
wiley   +1 more source

Comparison of chemical characteristics of 495 biomass burning plumes intercepted by the NASA DC-8 aircraft during the ARCTAS/CARB-2008 field campaign [PDF]

, 2011
This paper compares measurements of gaseous and particulate emissions from a wide range of biomass-burning plumes intercepted by the NASA DC-8 research aircraft during the three phases of the ARCTAS-2008 experiment: ARCTAS-A, based out of Fairbanks ...
A. Hecobian, Hecobian, Arsineh, M. J. Cubison, Liu, Zhen, Kürten, A., Diskin, Glenn S., S. Vay, St. Clair, Jason M., Weber, Rodney J., Y. Wang, Wang, Yuxuan, Liao, Jin, Jimenez, Jose Luis, J. St. Clair, Vay, S., Knapp, David J., Knapp, J., Jimenez, J. L., T. Mikoviny, Cubison, Michael J., Wang, Y., Z. Liu, J. L. Jimenez, A. J. Weinheimer, A. Kürten, Hennigan, Christopher J., J. D. Crounse, Liu, Z, Crounse, John D., Diskin, G. S., C. J. Hennigan, P. O. Wennberg, St. Clair, J., Crounse, J. D., Cubison, M. J., Wennberg, P. O., Huey, L. G., Wisthaler, A., Kürten, Christoph Andreas, Wisthaler, Armin, Wennberg, Paul O., D. J. Knapp, Liao, J., L. G. Huey, R. J. Weber, Sachse, G. W., G. W. Sachse, Weinheimer, Andrew J., Hennigan, C. J., Mikoviny, T., Vay, Stephanie, Hecobian, A., Weber, R. J., G. S. Diskin, Mikoviny, Tomas, Weinheimer, A. J., J. Liao, Sachse, Glen W., Huey, L. Gregory, A. Wisthaler   +59 more
core   +1 more source

Chitosan‐Carbon Dot Composite Materials Form a Leaf Surface Barrier to Mitigate the Enrichment and Invasion of Nanoplastics: From Leaf Interface to Systemic Response

Advanced Science, EarlyView.
Foliar spraying of CS‐CDs can form a film on the leaves of Brassica rapa, effectively reducing the enrichment and absorption of PS in the leaves, while increasing the biomass and nutrient content of the plants. In addition, CS‐CDs can also enrich the interfoliar microbial community and activate the plant's own defense metabolic pathways.
Beibei Zhao, Mei Li, Mengjiao Fan, Chuanhuan Liu, Jie Jiang, Jia Song, Yingzhu Liu   +6 more
wiley   +1 more source

Carbon in an Arctic fjord: sea ice carbon transformations and CO2 linkages

Frontiers in Marine Science
IntroductionThe biogeochemical processes underlying carbon cycling in Arctic coastal systems are rapidly evolving due to intensified ice loss. (Aim) This study examined the distinct contributions of dissolved organic carbon (DOC) and particulate carbon ...
Ximena Aguilar-Vega, Agneta Fransson, Melissa Chierici, Ian Washbourne, Evangelos Spyrakos   +4 more
doaj   +1 more source

Carbonaceous Aerosols in Fine Particulate Matter of Santiago Metropolitan Area, Chile

The Scientific World Journal, 2014
Measurements of carbonaceous aerosols in South American cities are limited, and most existing data are of short term and limited to only a few locations.
Richard Toro Araya, Robert Flocchini, Rául G. E. Morales Segura, Manuel A. Leiva Guzmán   +3 more
doaj   +1 more source

Adhesion‐Driven Removal of Microplastics From Aquatic Systems by Using Microgel Glues

Advanced Science, EarlyView.
Soft polymeric microgels function as “glues” that aggregate diverse microplastics through multivalent adhesion, promoting their interfacial deposition and co‐precipitation for efficient removal from water. Remarkably, this approach remains effective even for nanoscale plastic particles as small as 50 nm.
Jinmeng Zhang, Jie Xu, Wen Chen, Yanping Chen, Zixin Pan, Weitai Wu   +5 more
wiley   +1 more source

Positive sampling artifacts in particulate organic carbon measurements in roadside environment

, 2010
The positive artifacts in particulate organic carbon measurements in a roadside environment were characterized using two filters in tandem. The experiments were performed for PM 1.0, PM 2.5, and PM 10 at 24-h interval using a URG sampler, followed by ...
Cheng, Y, K. Fung, Lee, SC, Fung, K, Ho, KF, Y. Cheng, S.C. Lee, K.F. Ho   +7 more
core   +1 more source