Results 131 to 140 of about 132,748 (328)

Using a dual plasma process to produce cobalt--polypyrrole catalysts for the oxygen reduction reaction in fuel cells -- part I: characterisation of the catalytic activity and surface structure

, 2012
A new dual plasma coating process to produce platinum-free catalysts for the oxygen reduction reaction in a fuel cell is introduced. The catalysts thus produced were analysed with various methods.
Brüser, Volker, Kummer, Kurt, Quade, Antje, Vyalikh, Denis, Walter, Christian, Weltmann, Klaus-Dieter   +5 more
core   +1 more source

Empirical LCAO parameters for $\pi$ molecular orbitals in planar organic molecules

, 2008
We present a parametrization within a simplified LCAO model (a type of Hueckel model) for the description of $\pi$ molecular orbitals in organic molecules containing $\pi$-bonds between carbon, nitrogen, or oxygen atoms with $sp^2$ hybridization, which ...
Hawke, Laurence, Kalosakas, George, Simserides, Constantinos   +2 more
core   +3 more sources

Rational Design of Donor‐Acceptor Oligomers for Enhanced Charge Separation

Advanced Physics Research, EarlyView.
How can molecular symmetry be broken to maximize photoinduced charge separation? Through first‐principles analysis of 22 DTP‐based donor‐acceptor ternary oligomers, this work establishes that combining architectural asymmetry with site‐selective acceptor fluorination creates an ideal electrostatic landscape for frontier orbital segregation.
Jannik Theile, Michele Guerrini, Surender Kumar, Caterina Cocchi   +3 more
wiley   +1 more source

Research on synthesis of microwave‐assisted heterocyclic compounds with eco‐friendly solvents and transition metals via C–H activation

Bulletin of the Korean Chemical Society, EarlyView.
This review summarizes microwave‐assisted transition‐metal catalysis for constructing N‐ and O‐heterocycles, highlighting rapid C–H and pre‐activated C–X activation, improved selectivity, and green synthetic efficiency. Abstract Microwave‐assisted organic synthesis provides a rapid and sustainable platform for synthesizing various heterocycles ...
Woo‐Jin Park, Ye Ri Han, Hyejeong Lee
wiley   +1 more source

Synthesis and D₂-like binding affinity of new derivatives of N3-[(1- ethyltetrahydro-1H-2-pyrrolyl)methyl]-4,5-dihydrobenzo[g]indole-3- carboxamide and related compounds [PDF]

, 2000
In previous papers 4a,b we have reported the syntheses and structure-activity relationships of a series of 5-phenyl-3-pyrrole carboxamide and related 4,5-dihydrobenzo[g]indole-3-carboxamide analogues whose most representative terms were 1a and 2a ...
Chelucci, Giorgio Adolfo, Maciocco, Elisabetta, Murineddu, Gabriele, Mussinu, Jean-Mario, Pinna, Gérard Aimé, Pirisi, Maria Antonietta   +5 more
core  

Fiber‐type soft bioelectronics for wearable and implantable sensing and therapy

BMEMat, EarlyView.
Fiber‐type soft bioelectronics are emerging as versatile platforms for wearable and implantable health monitoring and therapeutic applications. These bioelectronics use organic and inorganic matrices combined with advanced fillers, which feature high conductivity, electrochemical sensitivity, softness, and biocompatibility.
Haneul Kim, Hak Yong Kim, Ja Hoon Koo, Gi Doo Cha, Dae‐Hyeong Kim, Hye Jin Kim   +5 more
wiley   +1 more source

Iodinated Aluminum(III) Corroles with Long-Lived Triplet Excited States [PDF]

, 2011
The first reported iodination of a corrole leads to selective functionalization of the four C–H bonds on one pole of the macrocycle. An aluminum(III) complex of the tetraiodinated corrole, which exhibits red fluorescence, possesses a long-lived triplet ...
Botoshansky, Mark, Durrell, Alec C., Gray, Harry B., Gross, Zeev, Palmer, Joshua H., Vestfrid, Jenya   +5 more
core   +1 more source

Biomaterial design strategies for enhancing mitochondrial transplantation therapy

BMEMat, EarlyView.
Biomaterials to facilitate mitochondrial transplantation therapy: biomaterials as barriers to protect mitochondria from pathophysiological microenvironments, like osmotic stress caused by the excessive concentration of calcium ion, reactive oxygen species, and advanced glycation end products; biomaterials integrating with biochemical cues to improve ...
Shaoyang Kang, Yushan Zhang, Hang Li, Sirui Peng, Donghao Lyu, Chunxiao Zhou, Sheng Ding, Zujian Feng, Pingsheng Huang, Chuangnian Zhang, Hongjun Wang, Deling Kong, Weiwei Wang   +12 more
wiley   +1 more source

Pyridine Into Pyrrole Transformation Induced Within the Confinement of the Macrocycle. [PDF]

Angew Chem Int Ed Engl
This work demonstrates the nontrivial reactivity of pyridine incorporated into a porphyrin framework. The most significant achievement is the contraction of the six‐membered ring to a pyrrole ring, which is a phenomenon of great interest to researchers in this field.
Krzyszowska P, Burska-Jabłońska A, Oberski M, Białek MJ, Latos-Grażyński L, Hurej K.   +5 more
europepmc   +2 more sources

Toward personalized healthcare: Advances in two‐dimensional nanomaterial‐based flexible electrochemical sensors for physiological monitoring

BMEMat, EarlyView.
This review provides an overview of the properties, composites and application of two‐dimensional (2D) nanomaterials for wearable electrochemical biosensors. Also, the challenges and future prospects of utilizing 2D nanomaterials in wearable electrochemical biosensor applications are discussed.
Kou Zhang, Lu Han, He‐Qing Cai, Xin‐Yu Xue, Yi‐Fei Song, Wu‐Lin Xin, Ying‐Ze Wang, Peng Liu, Juan Liu   +8 more
wiley   +1 more source