Results 91 to 100 of about 55,254 (299)

Tracking of [14C]Polystyrene Nanoplastics in Pregnant Mice

Advanced Science, EarlyView.
This study investigates [14C]polystyrene nanoplastic ([14C]PS) translocation in late‐stage pregnant mice after intranasal (0.5 mg of [14C]PS on GD12, GD14, and GD16, n = 6) and intravenous administration (1.5 mg of [14C]PS on GD16, n = 6). 14C‐radiolabel allows quantitative tracking of unmodified polystyrene nanoplastics.
Olga Khaybullina, Pallavi Sarkhel, Outi M. Keinänen   +2 more
wiley   +1 more source

The geochemistry of stream sediments, Panama: weathering in a tropical watershed [PDF]

, 2008
Chemical weathering of Earth's surface is the primary process controlling landscape and soil development, as well as the geochemistry of natural waters.
McElwee, Gregg T.
core  

Evidence for silicate dissolution on Mars from the Nakhla meteorite [PDF]

, 2013
Veins containing carbonates, hydrous silicates and sulphates that occur within and between grains of augite and olivine in the Nakhla meteorite are good evidence for the former presence of liquid water in the Martian crust.
Ashworth, Ashworth, Awad, Banfield, Borg, Boudier, Brantley, Bridges, Bridges, Bridges, Cassata, Changela, Chizmadia, Eugster, Friedman-Lentz, Fritz, Gooding, Hallis, Harvey, Kirby, Korochantseva, Langenhorst, Langenhorst, Lee, Lee, Lentz, Mikouchi, Noguchi, Plümper, Rao, Sawyer, Stopar, Treiman, Treiman, Treiman, Velbel, Velbel, Velbel, Wegner, Welch   +39 more
core   +1 more source

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

Lyophilized Synthetic Platelets: In Vitro Characterization and in Vivo Evaluation in Mouse Thrombocytopenia Model

Advanced Science, EarlyView.
ABSTRACT Platelet transfusions to treat bleeding complications use donor‐derived platelets stored at room‐temperature, that have a shelf‐life of only 5–7 days due to bacterial contamination risks. Cold‐stored and freeze‐dried platelets are being investigated for extending shelf‐life, but these still have the inherent challenge of donor‐dependency.
Ujjal Didar Singh Sekhon, Dante Disharoon, Shrijal S. Desai, Baylee Traylor, Emily Gahagan, Emma Quill, Kristin Aldridge, Norman F. Luc, Sonali Rohiwal, Shruti Raghunathan, Rebecca Ahn, Sana Syed, Alexander Dornback, Bipin Chakravarthy Paruchuri, Andrew Ditto, Susan M. Shea, Philip C. Spinella, Matthew D. Neal, Michael A. Bruckman, Christa L. Pawlowski, Anirban Sen Gupta   +20 more
wiley   +1 more source

Late Pleistocene Climate–Weathering Dynamics in Bohai Bay: High-Resolution Sedimentary Proxies and Their Global Paleoclimatic Synchronicity

Journal of Marine Science and Engineering
Understanding the climate–weathering coupling mechanisms remains pivotal for interpreting global glacial–interglacial cycles, yet advancements have been constrained by the limited high-resolution sedimentary archives.
Yanxiang Lei, Xinyi Liu, Yanhui Zhang, Lei He, Zengcai Zhao, Liujuan Xie, Siyuan Ye   +6 more
doaj   +1 more source

Volcano‐Inspired Dual‐Carbon Network Aerogel for High‐Performance Solar Evaporation With Edge‐Directed Salt Crystallization and Recovery

Advanced Science, EarlyView.
A volcano‐inspired dual‐carbon aerogel featuring hierarchical conduits and an outer carbon‐fiber shell directs rapid water transport, confines heat, and enables directional salt migration. Radial temperature gradients in the conical structure trigger Marangoni‐driven edge‐localized salt crystallization while maintaining an unobstructed photothermal ...
Shuyue Feng, Yongpeng Wang, Mengzhu Liu, Xin Wang, Tao Jia, Haibo Zhang, Haoyue Wu, Yuan Xu, Linghui Kong   +8 more
wiley   +1 more source

Spatial Detection of Microsphere Polystyrene Plastics and Molecular Remodeling within a Full‐Body Mouse with MALDI Trapped Ion Mobility Mass Spectrometry Imaging

Angewandte Chemie, EarlyView.
Orally administered polystyrene microplastics accumulate in murine tissues and are detected using MALDI‐MSI with TIMS. Lipid profiling reveals decreases in hexosylceramides, sphingomyelins, and ether‐linked phospholipids, indicating altered metabolism.
Karina A. Vargas, Amy L. Parkhurst, Ming‐Fo Hsu, Christopher Hou, Fawaz G. Haj, Elizabeth K. Neumann   +5 more
wiley   +2 more sources

Behaviour of Li isotopes in leachate during granite weathering: the Xunwu profile, southeastern China

Frontiers in Earth Science
IntroductionLithium (Li) isotopes are powerful tracers of silicate weathering processes. However, the geochemical behavior of lithium isotopes in granite leachates remains unclear.MethodsHere we report Li isotope compositions of leachates from a granite ...
Qi Liu, Qi Liu, Jun-Wen Zhang, Ting Gao, Zhi-Qi Zhao   +4 more
doaj   +1 more source

Congo River sand and the equatorial quartz factory [PDF]

, 2019
A never solved problem in sedimentary petrology is the origin of sandstone consisting exclusively of quartz and most durable heavy minerals. The Congo River offers an excellent test case to investigate under which tectonic, geomorphological, climatic ...
Andò, Sergio, Baudet, Daniel, Botti, Eleonora, De Grave, Johan, Dinis, Pedro, Garzanti, Eduardo, Hahn, Annette, Limonta, Mara, Vermeesch, Pieter, Vezzoli, Giovanni, Yaya, Nicole Kitambala   +10 more
core   +1 more source