Results 141 to 150 of about 33,101 (301)

Investigations Into the Metabolism and Elimination of Flmodafinil and Fladrafinil for Sports Drug Testing Purposes

Drug Testing and Analysis, EarlyView.
This article investigates the metabolism and elimination of flmodafinil and fladrafinil, two fluorinated analogs of modafinil and adrafinil listed as S6 stimulants by the World Anti‐Doping Agency. After single‐dose administration to six volunteers, the compounds and their main metabolites were studied in urine and blood.
O. Krug, S. Guddat, C. Görgens, K. Walpurgis, F. Toma, A. Thomas, M. Thevis   +6 more
wiley   +1 more source

Unraveling Mechanisms and Engineering Strategies for Superior Photocarrier Dynamics Toward Efficient Photocatalysis

EcoEnergy, EarlyView.
Despite its potential, photocatalysis is limited by inefficient charge carrier separation and transport. This article reviews the mechanisms, characterization methods, and strategies for improvement, concluding with future challenges in the field. ABSTRACT Photocatalysis offers a promising solution to environmental and renewable energy issues. However,
Leqi Cheng, Xin Wang, Yishen Zhang, Xinrong Zhang, Jung‐Ho Yun, Songcan Wang   +5 more
wiley   +1 more source

Gas–Solid Interface‐Assisted Growth of Organic Semiconductor Single Crystals: Dimensions, Structures, Mechanisms, and Applications

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Gas–solid interface‐assisted growth strategies have unlocked precise control over crystal structure, morphology, dimension, and molecular packing. The obtained organic semiconductor single crystals represent the ideal candidates for high‐performance organic optoelectronic devices.
Tingyi Yan, Qing Tian, Jinwen Wang, Ke Jiang, Yage Han, Yuanzhuang Ren, Lingyun Li, Xiujuan Zhang, Jiansheng Jie   +8 more
wiley   +1 more source

Dehalogenation of Polychlorinated Biphenyls

, 2005
This work deals with the determination of the thermodynamic stability of di- to nona-chlorinated biphenyls during the dehalogenation process of these compounds in the gas phase by steam in presence of solid copper.
Bureš, M.
core  

Molecularly Engineered Dual‐Crosslinked Polymer Dielectrics for 200 °C Capacitive Energy Storage

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work establishes a molecular engineering strategy that constructs a robust dual‐crosslinked network in polymer nanocomposites, achieving a record‐high energy density of 5.17 J cm−3 with >90% efficiency at 200 °C. The multiscale‐validated design simultaneously enhances dielectric polarization and introduces deep electron traps, resulting in ...
Xue Li, Ling Weng, Lizhu Guan, Xiaoming Wang, Ze Li, Xiaorui Zhang, Ruiqun Pan, Yuhan Li, Zijian Wu, Yingtang Zhang   +9 more
wiley   +1 more source

The assessment of sdw landfill impact on pcb soil pollution (in terms of ”Zhiroshkino” SDW landfill in Domodedovo district)

RUDN Journal of Ecology and Life Safety, 2013
Below there are given the measurement results of polychlorinated biphenyls concentration in the soils at a different distance from the solid domestic waste landfill “Zhiroshkino”.
U I Baeva, M A Ostapenko
doaj  

Design, Synthesis, and Photophysical Studies of Functionalized Polyaromatic Isonitriles as Visible Light Photoredox Catalysts

European Journal of Organic Chemistry, EarlyView.
A new series of structurally rich polyaromatic isonitriles is presented as photoredox catalysts. Their photophysical properties are investigated by UV–Vis absorption and fluorescence measurements, combined with experimental and theoretical studies to evaluate both ground‐ and excited‐state redox properties.
Cristina Martini, Camilla Russo, Jussara Amato, Carmine Volpe, Francesca Brunelli, Laurence Grimaud, Maxime R. Vitale, Greta Donati, Andrea Basso, Mariateresa Giustiniano   +9 more
wiley   +1 more source

Dibenzosuberene‐Winged Polycyclic Aromatic Hydrocarbons

European Journal of Organic Chemistry, EarlyView.
The twisted acene 8, which features two dibenzosuberene “wings”, was prepared by the addition of a crowded aryne to a similarly “winged” cyclopentadienone. Compound 8 is chiral, and it has a high barrier to thermal racemization (ΔG‡rac = 36 kcal/mol), but it undergoes fast photochemical racemization even in ambient light.
Mingshu Xie, Xiaodong Zhang, Michael W. Johnson, Robert A. Pascal Jr   +3 more
wiley   +1 more source

Quantitative structure-property relationships for octanol-air partition coefficients of polychlorinated biphenyls

, 2002
Based on nine quantum chemical descriptors computed by PM3 Hamiltonian, using partial least squares analysis, a significant quantitative structure-property relationship for the logarithm of octanol-air partition coefficients (log K-OA) of polychlorinated
Jingwen Chen, Karl-Werner Schramm, Xie Quan, Antonius Kettrup, Fenglin Yang, Chen, JW, Dalian Univ Technol, Sch Environm Sci & Technol, Zhongshan Rd 158-129, Dalian 116012, Peoples R China, Xingya Xue   +6 more
core  

Activation of Aryl Halides by Triplet–Triplet Annihilation Upconversion Enabling Coupling Processes Under an Open‐to‐Air Environment

European Journal of Organic Chemistry, EarlyView.
Triplet–triplet annihilation upconversion (TTA‐UC) performed inside supramolecular viscoelastic gels enables efficient CC and C–heteroatom coupling reactions under green LED irradiation in open‐air conditions. The gel network restricts oxygen diffusion, preserves triplet states, and allows aryl halide activation through upconverted excited states ...
Daniel Álvarez‐Gutiérrez, Paola Domínguez Domínguez, M. Consuelo Jiménez, David Díaz Díaz, Raúl Pérez‐Ruiz   +4 more
wiley   +1 more source