Results 51 to 60 of about 1,225 (164)

The Rich Chemistry of Ionized Methanol With Sulfur Dioxide: Pathways to Prebiotic and Elusive Species in Earth's Atmosphere and Space

Chemistry – A European Journal, EarlyView.
The reaction between the methanol radical cation and sulfur dioxide is remarkably fast and forms several ionic and neutral products (HOSOH+, CH2OSO+, CH2OH+, CH2O, H2O, HSO2). The chemistry goes beyond simple proton or hydrogen transfer, revealing a close interaction between the two species, relevant to atmospheric and astrochemical environments where ...
Mauro Satta, Daniele Catone, Mattea Carmen Castrovilli, Antonella Cartoni   +3 more
wiley   +1 more source

Does the POA–SOA split matter for global CCN formation? [PDF]

Atmospheric Chemistry and Physics, 2014
A model of carbonaceous aerosols has been implemented in the TwO-Moment Aerosol Sectional (TOMAS) microphysics module in the GEOS-Chem chemical transport model (CTM), a model driven by assimilated meteorology.
W. Trivitayanurak, P. J. Adams
doaj   +1 more source

Expression, Purification, and Microscopy‐Based Assays for Engineered Recombinant Tyrosinated, Detyrosinated, and Δ2 Human Tubulin

Cytoskeleton, EarlyView.
ABSTRACT Microtubules are noncovalent polymers assembled from α/β tubulin dimers. Their structure, dynamics and interaction with effectors are regulated through the expression of diverse tubulin isotypes and chemically diverse posttranslational modifications, also known as the “tubulin code.” Understanding the biophysical correlates between tubulin ...
Jiayi Chen, Agnieska Szyk, Antonina Roll‐Mecak   +2 more
wiley   +1 more source

Uncertainty in aerosol hygroscopicity resulting from semi-volatile organic compounds [PDF]

Atmospheric Chemistry and Physics, 2018
We present a novel method of exploring the effect of uncertainties in aerosol properties on cloud droplet number using existing cloud droplet activation parameterisations.
O. Goulden, M. Crooks, P. Connolly
doaj   +1 more source

Integrated Solvent‐Catalyst‐Dopant Strategy via Acidic DES for Synthesizing Lignin‐Derived Carbon Dots With High‐Quantum Yield to Achieve Efficient Photocatalytic Degradation of Tetracycline

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A deep eutectic solvent (ChCl/pTSA) platform enables integrated solvent, catalyst, and dopant functions, producing sulfur‐doped carbon quantum dots with a high sp2‐C content (82.8%) and a quantum yield of 56.9%. When combined with TiO2, the CQDs form TiOC and TiOS interfacial bridges, achieving 97.3% tetracycline photodegradation with excellent ...
Xinhang Li, Haipeng Guo, Suen Hou, Fenghua Huang, Hailong Yu   +4 more
wiley   +1 more source

Alternate Chemical Compounds as a Condensation Nucleus in Cloud Seeding [PDF]

Nature Environment and Pollution Technology
Cloud seeding involves boosting precipitation by releasing substances into the air that act as cloud condensation or ice nuclei. These substances encourage the development of clouds and precipitation.
Hasan M. Azeez, Nagham T. Ibraheem and Hazim H. Hussain
doaj   +1 more source

Engineering mRNA‐LNP Medicines for the Ageing Brain: Opportunities and Challenges for Neurodegenerative Diseases

Exploration, EarlyView.
This review highlights recent advances in engineering messenger RNA (mRNA)‐lipid nanoparticles (LNPs) to cross the ageing blood–brain barrier and target neurodegenerative diseases. It outlines design principles, delivery routes, and translational challenges, charting a roadmap towards clinical application of mRNA‐LNP therapeutics for neurodegenerative ...
Abdel Ali Belaidi, Denzil L. Furtado, Francesca Alves, Rebecca M. Nisbet, Scott Ayton, Ashley I. Bush   +5 more
wiley   +1 more source

Observing the role of wind-driven processes in the evolution of warm marine cloud properties [PDF]

Atmospheric Chemistry and Physics
The cloud droplet effective radius is a key variable when evaluating the interactions between aerosols and clouds. The activation of fine-sized sea salt from the ocean results in the formation of more but smaller cloud droplets (reducing the effective ...
V. Nair, E. Gryspeerdt, A. Arola, A. Lipponen, T. Virtanen   +4 more
doaj   +1 more source

Microbial metabolite indole‐3‐propionic acid preserves astrocytic mitochondrial mitofusin 2 to limit neuroinflammation after traumatic brain injury

Interdisciplinary Medicine, EarlyView.
Following traumatic brain injury, indole‐3‐propionic acid (IPA) directly targets the aryl hydrocarbon receptor on astrocytes in the peri‐lesional cortex; this suppresses interferon regulatory factor 1‐driven transcription of the E3 ubiquitin ligase RFFL (ring finger and FYVE‐like domain containing E3 ubiquitin protein ligase).
Ziwen Zhang, Kai Wang, Liangbo Wang, Wencong Li, Hao Guo, Meng Xu, Tinghao Wang, Jiahui Ren, Ting Zhu, Jiahui Wang, Wenxing Cui, Jinpeng Zhou, Yang Tian, Liying Han, Chengxuan Guo, Shuoyao Ma, Qiang Wang, Zhihong Li, Yaning Cai, Jingyu Dong, Xun Wu, Haixiao Liu, Yan Qu   +22 more
wiley   +1 more source

Characteristics of upper‐level updrafts and downdrafts in the anvils of tropical deep convective clouds

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study investigates the thermodynamic and microphysical characteristics of updrafts and downdrafts of tropical deep convective anvil clouds using in situ measurements. We found that parts of the downdrafts are in ice supersaturation in these clouds.
Sreehari Kizhuveettil, Jordi Vila‐Guerau de Arellano, Martina Krämer, Armin Afchine, Luiz A. T. Machado, Martin Zöger, Wiebke Frey   +6 more
wiley   +1 more source