Results 71 to 80 of about 25,797 (319)

An assessment of chemical contaminants in the marine sediments of southwest Puerto Rico [PDF]

, 2007
This report summarizes the results of a characterization of chemical contaminants in the sediments in southwest Puerto Rico. The report is part of a project to integrate various analytical specialties to assess linkages between chemical contaminants ...
Caldow, Chris, Christensen, John D., Jeffrey, Christopher F. G., Mason, Andrew L., Monaco, Mark, Pait, Anthony S., Ramirez, Juan, Whitall, David R.   +7 more
core  

Cinnamic‐Hydroxamic‐Acid Derivatives Exhibit Antibiotic, Anti‐Biofilm, and Supercoiling Relaxation Properties by Targeting Bacterial Nucleoid‐Associated Protein HU

Advanced Science, EarlyView.
Cinnamic‐hydroxamic‐acid derivatives (CHADs) are identified as novel inhibitors of the bacterial nucleoid‐associated protein HU, exhibiting potent antibacterial, anti‐biofilm (both inhibition and eradication), and DNA relaxation (anti‐supercoiling) activities. Moreover, CHADs demonstrate strong synergistic effects with multiple antibiotics.
Huan Chen, Yingqi Xu, Zhaoping Xiong, Hongliang Wang, Xin Wang, Yue Kang, Zhonglin Wang, Xiaoyan Zeng, Yahui Liu, Yehuan Zheng, Wei Chen, Mengzhe Li, Zhenyue Hu, Chi Xu, Yue Wu, Yawen Wang, Zuyi Yuan, Shuai Yuan, Huadong Liu, Steve Matthews, Nan Qiao, Yan Li, Bing Liu   +22 more
wiley   +1 more source

Benzo[a]fluoren-11-one [PDF]

Acta Crystallographica Section E Structure Reports Online, 2008
The mol-ecule of the title compound, C(17)H(10)O, is nearly planar, the largest deviation from the mean plane being 0.06 Å. The crystal structure is governed by π-π inter-actions, with centroid-centroid distances ranging from .559 to 3.730 Å.
Di Sun, Geng-Geng Luo, Su-Yuan Xie, Rong-Bin Huang, Lan-Sun Zheng   +4 more
openaire   +4 more sources

Probing Ultrastrong Through‐Space Electronic Coupling in Donor‐Acceptor Systems at the Single‐Molecule Level

Advanced Science, EarlyView.
A series of through‐space coupled donor‐acceptor (D–A) molecules is sandwiched between two electrodes to determine their single‐molecule conductance. As the D–A interaction weakens, single‐molecule conductance reduces while Flicker Noise PSD n‐value increases (coupling strength decreases).
Xin Wang, Dan Yang, Jiazheng Diao, Jens Ulstrup, Chengyang Zhang, Florian Auras, Qiang Fu, Jinlong Yang, Linsong Cui, Yueqi Li, Jinghong Li   +10 more
wiley   +1 more source

Vieillissement du polyamide 11 utilisé dans les conduites flexibles : influence de la composition du fluide transporté Influence of the Chemical Nature of the Environment on the Aging of Polyamide 11 Used for Offshore Flexible Pipes

Oil & Gas Science and Technology, 2006
Le polyamide 11 est utilisé comme gaine d'étanchéité interne des conduites flexibles de transport de produits pétroliers. Dans certaines conditions d'utilisation, celui-ci subit une dégradation de ses propriétés mécaniques et physico-chimiques initiales.
Ubrich E., Fafet A., Robert E., Serpe G.
doaj   +1 more source

Beyond Cocrystals: Hierarchical Functional Assemblies via Noncovalent Synthesis

Advanced Science, EarlyView.
Non‐covalent interactions (NCIs) drive the formation of organic cocrystals with diverse structures and tunable optoelectronic properties. This review explores the essential factors governing these properties, highlighting how the sequential nucleation of cocrystals leads to the self‐assembly of organic hierarchical structures (OHSs).
Ya‐Nan Zhu, Jin Feng, Ying‐Xin Ma, Hong‐Tao Lin, Li‐Wei Xie, Qi‐Liang Peng, Xue‐Dong Wang   +6 more
wiley   +1 more source

Aggregation‐Induced Resonance Energy Transfer in Polymer Dots to Boost Electrochemiluminescence Performance for Bioimaging of Glycan on Cells

Advanced Science, EarlyView.
This study pioneers an aggregation‐induced resonance energy transfer mechanism by synergistically integrating aggregation‐induced emission (AIE), resonance energy transfer (RET), and thermally activated delayed fluorescence (TADF) within co‐reactant conjugated polymers to develop self‐enhanced ECL emitters, which achieves an ECL efficiency up to 92.6 ...
Chao Wang, Mengjiao Li, Yiran Li, Xiangfu Hu, Chunlan Li, Ningning Wang, Huangxian Ju   +6 more
wiley   +1 more source

Transformation of Substituted Fluorenes and Fluorene Analogs by Pseudomonas sp. Strain F274 [PDF]

Applied and Environmental Microbiology, 1995
Pseudomonas sp. strain F274, previously shown to catabolize fluorene via fluorenone and its angular dioxygenation, 2(prm1),3(prm1)-dihydroxy-2-carboxybiphenyl, phthalate, and protocatechuate, was examined for its ability to transform substituted fluorenes and S- and N-heterocyclic analogs.
M, Grifoll, S A, Selifonov, P J, Chapman
openaire   +2 more sources

Delocalized Charge Transport in Thermoelectric Composites of Semiconducting Carbon Nanotubes Wrapped with a P‐Type Polymer

Advanced Electronic Materials, EarlyView.
Composites made of semiconducting carbon nanotubes and p‐type polymers, when adequately doped with molecular dopants, can exhibit highly delocalized charge carrier transport, showing high thermoelectric performances. The efficient charge delocalization is enabled by the reduced coulombic binding energy at high carrier concentration and the small ...
Ye Liu, Wenchao Yang, Anirudh Sharma, Diego Rosas‐Villalva, Han Xu, Md Azimul Haque, Frédéric Laquai, Derya Baran   +7 more
wiley   +1 more source

Iridium-Catalyzed Formal [4 + 1] Cycloaddition of Biphenylenes with Alkenes Initiated by C-C Bond Cleavage for the Synthesis of 9,9-Disubstituted Fluorenes.

Organic Letters, 2016
An Ir-catalyzed intermolecular reaction of biphenylenes as a C4 unit with various alkenes as a C1 unit gave 9,9-disubstituted fluorenes in moderate to high yields.
Hideaki Takano, K. Kanyiva, T. Shibata
semanticscholar   +1 more source