Results 101 to 110 of about 59,836 (250)

Iridium-Catalyzed Enantioselective Allyl–Allyl Cross-Coupling of Racemic Allylic Alcohols with Allylboronates

, 2018
Carreira’s iridium-(P, olefin) phosphoramidite-based catalytic system that allows asymmetric allyl–allylboronate cross-coupling with high enantioselectivity is reported.
Yu-Rong Yang (595115), Yu Zheng (2950), Kun Wei (159944), Bei-Bei Yue (5066405)   +3 more
core   +1 more source

Melanin's Role in Balancing Mechanical Strength and Reproductive Output in Environmentally Stressed Fungal Spores

Advanced Functional Materials, EarlyView.
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley   +1 more source

Catalytic auto-oxidation of o-hydroxyphenylthiourea by Iridium(III): A photometric sensing platform for Iridium

Chemistry of Inorganic Materials
o-Hydroxyphenylthiourea (HPTU) undergoes oxidative dimerization to form a yellow-colored disulfide in the presence of Iridium(III), a process significantly enhanced by the activator 1,10-phenanthroline.
A. Sunil, Ashish Deep Chettri, S. Jagadeeswara Rao   +2 more
doaj   +1 more source

An Epigenetic Fate Converter Based on Nuclei‐Targeting Lipid Nanoparticles Drives Neuronal Programming of Stem Cells for Spinal Cord Repair

Advanced Functional Materials, EarlyView.
Schematic illustration of LNP‐MPG nuclei‐targeting delivery of HMW‐FGF2 promoting histone acetylation to regulate the fate of DPSCs and treat spinal cord injury. LNPs components include pHMW‐FGF2 plasmid, DSPC, Dlin‐MC3‐DMA, cholesterol, and PEG2000, and are modified with MPG to form HMW‐FGF2@LNP‐MPG (HLM). HLM nuclei‐targets DPSCs to deliver HMW‐FGF2,
Heng Zhou, Qiang Qin, Xiqin Li, Hanyu Ding, Chun Xu, Yan He, Qingsong Ye   +6 more
wiley   +1 more source

Iridium complex, a phosphorescent light-emitting diode material, serves as a novel chemical probe for imaging hypoxic tumor tissues [PDF]

, 2007
Iridium complex, a promising organic light-emitting diode for next generation television displays, emits phosphorescence. Phosphorescence is quenched by oxygen. We used this oxygen-quenching feature for imaging tumor hypoxia.
Yasuhiko Iida, Keigo Endo, Masahiro Hosaka, Seiji Tobita, Toshiyuki Takeuchi, Toshitada Yoshihara, Shaojuan Zhang   +6 more
core  

Photodeposition‐Based Synthesis of TiO2@IrOx Core–Shell Catalyst for Proton Exchange Membrane Water Electrolysis with Low Iridium Loading

Advanced Science
The widespread application of green hydrogen production technologies requires cost reduction of crucial elements. To achieve this, a viable pathway to reduce the iridium loading in proton exchange membrane water electrolysis (PEMWE) is explored.
Darius Hoffmeister, Selina Finger, Lena Fiedler, Tien‐Ching Ma, Andreas Körner, Matej Zlatar, Birk Fritsch, Kerstin Witte Bodnar, Simon Carl, Allison Götz, Benjamin Apeleo Zubiri, Johannes Will, Erdmann Spiecker, Serhiy Cherevko, Anna T. S. Freiberg, Karl J. J. Mayrhofer, Simon Thiele, Andreas Hutzler, Chuyen van Pham   +18 more
doaj   +1 more source

Dimensionality‐Driven Interfacial Electronic Coupling in Carbon‐Supported Gd‐CuO Catalysts for Selective CO2 Electroreduction to Ethylene

Advanced Functional Materials, EarlyView.
The 2D carbon‐supported Gd–CuO exhibits strong interfacial electronic coupling, abundant oxygen vacancies, and highly exposed active sites, enabling efficient CO enrichment and C─C coupling toward selective and durable CO2‐to‐C2H4 conversion. ABSTRACT Copper‐based catalysts are promising for electrochemical CO2 reduction toward value‐added chemicals ...
Xueya Zhu, Binghao Shen, Mengshan Chen, Yue Hu, Ruijie Xia, Senwei Ji, Zhi Teng, Donglin Xie, Shunli Li, Xue Zhao, Hermenegildo Garciad, Yingtang Zhou   +11 more
wiley   +1 more source

Iridium-Carbon, Iridium-Nitrogen and Iridium-Oxygen Bond Formation in Bis(iminoxolene)iridium Complexes

The reactions of bis(4,6-di-tert-butyl-2-(2,6-diisopropylphenyliminoxolene)iridium chloride ((Diso)2IrCl) with oxygen atom transfer reagents have been previously reported to form the iridium alkoxy chloride complex, (Diso)(DisoO)IrCl.
Kahargyan Nugraha (20820258)
core   +1 more source

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

Advanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma, Ying Chen, Thi Kim Hoang Trinh, Anthony R. Perez, Jonathan Gil, Maria Casco Hidalgo, Botao Hao, Kyle Whitaker, Chun‐Long Chen   +8 more
wiley   +1 more source

Iridium-Catalyzed Asymmetric Addition of Thiophenols to Oxabenzonorbornadienes

, 2016
A highly efficient asymmetric ring addition reaction of oxabenzo­norborna­dienes with thiophenols using an iridium/(S)-xyl-binap catalyst is developed. This catalyst system overcomes catalyst poisoning and background reactions and allows the formation of
Jun Wang (5906), Ling Meng (168419), Sifeng Li (1533055), Zhiwu Lu (3182592)   +3 more
core   +1 more source