Results 141 to 150 of about 47,366 (291)

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

open access: yesEcoEnergy, 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   +5 more
wiley   +1 more source

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

open access: yesENERGY &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   +8 more
wiley   +1 more source

Biphenyl Inhibitors of Carbonyl Reductase

open access: yes, 2012
Compositions of matter and methods of treating cancer patients may prevent or limit cardiotoxicity during or after chemotherapy, and/or may prevent or lower resistance to anthracycline drugs, both of which are believed to be caused by the human enzyme ...
Ewing, Christopher K.   +1 more
core  

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

open access: yesENERGY &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   +9 more
wiley   +1 more source

Isolation and Identification of Biphenyl and Polychlorinated Biphenyl Degrading Microbes

open access: yes, 2018
The San Jacinto River system south of the I-10 overpass is heavily contaminated with biphenyl and polychlorinated biphenyls (PCBs), carcinogenic aromatic hydrocarbons that have a deleterious impact on the environment. While typically recalcitrant to most
Ahmed, Hasan Hasnaeen
core  

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

open access: yesEuropean 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   +9 more
wiley   +1 more source

Dibenzosuberene‐Winged Polycyclic Aromatic Hydrocarbons

open access: yesEuropean 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   +3 more
wiley   +1 more source

Biphenyl and naphthyl-phenyl hydroxamic acid derivatives

open access: yes, 2007
Biphenyl and phenyl-naphthyl compounds bearing a hydroxamic group, which are endowed with antitumor, and anti-angiogenic activity These compounds are therefore particularly useful for the treatment of drug-resistant ...
L. Vesci   +6 more
core  

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

open access: yesEuropean 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   +4 more
wiley   +1 more source

Cyclodextrins as Chiral Selectors in Capillary Electrophoresis—Recent Developments in Understanding Analyte Complexation and Applications in Pharmaceutical Analysis

open access: yesELECTROPHORESIS, EarlyView.
Cyclodextrins are the most often applied chiral selectors in CE enantioseparations. In combination with NMR spectroscopy and molecular modeling, studies for an understanding of chiral recognition underlying enantioseparations have been performed.
Gerhard K. E. Scriba
wiley   +1 more source

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