Results 21 to 30 of about 2,638 (197)

Phytochemical analysis and antimicrobial study of Fernandoa adenophylla against multidrug resistant urinary tract infection pathogens

open access: yesBangladesh Journal of Pharmacology, 2016
In the present study various solvent extracts from the leaves of Fernandoa  adenophylla were screened for their phytochemical and antimicrobial potentials.
Abdur Rahim   +2 more
doaj   +1 more source

Novel Nematic all-trans-Perhydroanthracenes, -naphthacenes, and -benz[a]anthracenes

open access: yesCHIMIA, 1985
Hydroxy derivatives of the title compounds were prepared, two of them via regioselective formation of enamines. Some nematic acyl derivatives of the alcohols are described and their phase transition data recorded.
Wolfgang Sucrow, Klaus Köster
doaj   +1 more source

Promoting multiexciton interactions in singlet fission and triplet fusion upconversion dendrimers

open access: yesNature Communications, 2023
Singlet fission and triplet-triplet annihilation upconversion are two multiexciton processes intimately related to the dynamic interaction between one high-lying energy singlet and two low-lying energy triplet excitons.
Guiying He   +10 more
doaj   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

open access: yesAdvanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally   +2 more
wiley   +1 more source

Dicyanovinyl End-Capped 9,10-Bis (Phenylethynyl) Anthracenes for Organic Solar Cells

open access: yesTechnical Transactions, 2018
A series of 9,10-bis(phenylethynyl)anthracene dicyanovinyl end-capped derivatives have been used in bulk heterojunction (BHJ) photovoltaic cells prepared by the solution process. The compounds were excessively decorated with moieties enhancing solubility
Danel Krzysztof S.   +4 more
doaj   +1 more source

“Smelltronics”—From Gas to Smell Sensing

open access: yesAdvanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono   +7 more
wiley   +1 more source

Large‐Scale Determination of Frontier Orbital Energies of Disordered Small‐Molecule Organic Semiconductors Using Exciplex Emission Spectra

open access: yesAdvanced Materials, EarlyView.
ABSTRACT Accurately knowing the frontier orbital energies of the structurally disordered small‐molecule organic semiconductors that are used in optoelectronic devices such as organic light‐emitting diodes is required to rationally improve their performance. Here, we show that these energies can be deduced with a large accuracy from the peak energies of
Christian B. McDonald   +7 more
wiley   +1 more source

Waveguide Photoactuators: Materials, Fabrication, and Applications

open access: yesAdvanced Robotics Research, EarlyView.
Waveguide photoactuators convert guided light into mechanical motion. Their tethered‐flexible design enables minimally invasive surgery and confined‐space robotics. This review aims to guide materials selection, device design, and system integration, accelerating the transition of waveguide photoactuators from laboratory prototypes to versatile ...
Minjie Xi   +4 more
wiley   +1 more source

Assessment and Characterization of Alkylated PAHs in Selected Sites across Canada

open access: yesAtmosphere, 2022
Alkylated polycyclic aromatic hydrocarbons (alkyl-PAHs), dibenzothiophenes (DBTs), and unsubstituted polycyclic aromatic hydrocarbons (PAHs) are naturally present in fossil fuels.
Andrzej Wnorowski   +5 more
doaj   +1 more source

Efficient Screening of Organic Singlet Fission Molecules Using Graph Neural Networks

open access: yesAdvanced Science, EarlyView.
A high‐throughput screening framework based on graph neural networks (GNNs) and multi‐level validation facilitates the identification of singlet fission (SF) candidates. By efficiently predicting excitation energies across 20 million molecules, and integrating TDDFT calculations, synthetic accessibility assessments, and GW+BSE calculations, this ...
Li Fu   +5 more
wiley   +1 more source

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