Results 71 to 80 of about 16,836 (209)

Palladium-Catalyzed Asymmetric Conjugate Addition of Arylboronic Acids to α,β-Unsaturated Cyclic Electrophiles [PDF]

, 2015
This account describes our laboratory’s efforts in the development of a palladium-catalyzed asymmetric conjugate addition of arylboronic acids to cyclic conjugate acceptors.
Holder, Jeffrey C., Shockley, Samantha E., Stoltz, Brian M.   +2 more
core   +1 more source

Dual‐Responsive Dynamic Covalent Bond‐Based Assembly of Lipid‐Nanozyme Systems via Multi‐Target Synergy and Efficient Target Enrichment for Ischemic Stroke Therapy

Advanced Science, EarlyView.
This system adopts a biomimetic phospholipid structure, covalently binding iNOS inhibitors, neuroprotective agent PCA and vitamin E derivatives through pH/ROS dual‐responsive bonds, and assembles them with Prussian blue nanozyme to form PBB@AHA. It can efficiently penetrate the blood‐brain barrier and simultaneously release multiple active components ...
Mengcheng Guo, Qingran Guan, Guanyu Qiao, Lixue Zhang, Man Liu, Zhen Li, Qingbiao Yang, Meili Shen, Linlin Liu, Yapeng Li   +9 more
wiley   +1 more source

Investigation of the Suzuki–Miyaura cross-coupling reaction on a palladium H-beta zeolite with DFT calculations

Scientific Reports
Metal or metal cluster-doped zeolites catalyse a wide variety of reactions. In this work, a coupling reaction between bromobenzene and phenylboronic acid to yield biphenyl with the Pd–H-Beta zeolite catalyst was investigated with density functional ...
Bundet Boekfa, Thana Maihom, Masahiro Ehara, Jumras Limtrakul   +3 more
doaj   +1 more source

A mechanistic proposal for the protodeboronation of neat boronic acids: boronic acid mediated reaction in the solid state. [PDF]

, 2015
A combined experimental and computational study suggests that a reduction in the entropy of activation in the solid state can lead to the protodeboronation of boronic ...
Aakeröy, Al-Zoubi, Allen, Andrew G. Leach, Becke, Butters, Clapham, Clapham, Cyrański, Dabrowski, Dabrowski, Darses, Das, Fersht, Filthaus, Gary Noonan, Hall, Hall, Hariharan, Johansson Seechurn, Kacprzak, Kim, Knapp, Kotha, Kuivila, Kuivila, Kuivila, Lee, Lee, Lennox, Lennox, Lulinski, Meijere, Molander, Nahabedian, Page, Plumley, Plumley, Plumley, Rettig, Rodríguez-Cuamatzi, Sarma, Saygili, Serwatowski, Shimpi, Smith, Thompson, Tomasi, Vedejs, Villa, Wilding, Wolfenden, Yu, Zhao, Zhao, Zheng   +55 more
core   +1 more source

Inhibiting cGAS‐STING to Preserve Mitochondrial–Nuclear Communication and Stemness in Young Tendon Stem Cells: A Hydrogel Strategy against Age‐Related Tendinopathy

Advanced Science, EarlyView.
A dual‐targeting strategy to rejuvenate aged tendons. A reactive oxygen species (ROS)‐responsive hydrogel co‐delivers a selenium nanozyme (scavenges ROS) and a STING inhibitor to tendon stem cells. This combined action restores mitochondria–nucleus communication, alleviates cellular senescence, and rejuvenates tendon regeneration, offering a novel ...
Zhuo Zhang, Weiyong Song, Heng Yin, Yi Wang, Yi Zou, Yuling Li, Yue Luo, Chao Xiang, Xiaoqin Liu, Yan Xiong, Yong Wang, Ke Jiang   +11 more
wiley   +1 more source

Supported Au nanoparticles as efficient catalysts for aerobic homocoupling of phenylboronic acid

, 2012
Au nanoparticles with small sizes (1–4 nm) were effectively formed on Mg–Al mixed oxides (Au/MAO), which showed superior catalytic performances and good recyclability in aerobic homocoupling of phenylboronic ...
Meng, X., Su, D., Wang, L., Xiao, F., Zhang, W.   +4 more
core   +1 more source

Dynamic Covalent Networks of Molecular Clusters for Hard and Impact‐Resistant Glass with Feasible Processability

Advanced Science, EarlyView.
Molecular granular material glass is fabricated by crosslinking sub‐nm POSS clusters with dynamic borate ester bonding while the materials combine high transparency, modulus, and hardness with superior impact resistance and (re)processability, offering a promising strategy for creating robust yet highly processable organic glasses.
Haiyan Xiao, Jia‐Fu Yin, Linjie Lan, Wei Liu‐Fu, Panchao Yin   +4 more
wiley   +1 more source

Automated Alignment Powered by Computer Vision Streamlines the Two‐Photon Polymerization‐Based Micro 3D Printing of Multiscale and Multimaterial Structures

Advanced Intelligent Discovery, EarlyView.
Two‐photon polymerization enables high‐resolution microfabrication, but performing alignment when printing multiple structures is difficult. Here, we present a fast, robust, and open‐source protocol for automated alignment on Nanoscribe systems. Achieving ≈0.4 μm accuracy in under 5 s, our protocol reduces time and error in multimaterial printing. This
Daniel Maher, Valentina Mendoza Martinez, Marcin Piotr Piekarczyk, Stefan Sützl, Ada‐Ioana Bunea   +4 more
wiley   +1 more source

Rationalization of the mechanism of in situ Pd(0) formation for cross-coupling reactions from novel unsymmetrical pincer palladacycles using DFT calculations [PDF]

, 2017
Density functional theory (DFT) is used to determine the mechanism for Pd(0) generation from pincer palladacycle pre-catalysts. The elucidated mechanisms comprise two key steps, transmetallation and reductive elimination. It is found that the presence of
Aleksanyan, Andrae, Arunan, Bader, Bedford, Bedford, Bedford, Beller, Boonseng, Boonseng, Braga, Braga, Braunstein, Chai, de Vries, de Vries, Dolg, Dupont, Dupont, Dupont, Dupont, d’Orlyé, Estévez, Fleckhaus, Frisch, Fukui, Fukui, Gagliardo, García-Melchor, Gavin W. Roffe, Gonzalez, Grove, Hazel Cox, Heck, Herrmann, Hunter, John Spencer, Kapdi, Kozlov, Kruithof, Lakmini, Liu, Louie, Lu, Matos, Miertuš, Miyaura, Moreno, Msugh Targema, Orpen, Ossor, Perdew, Perdew, Perdew, Pérez-Rodríguez, Pérez-Rodríguez, Ratti, Roffe, Roffe, Sajith, Sarote Boonseng, Scalmani, Schlegel, Selander, Sicre, Sinnokrot, Sosa, Spencer, Tomasi, van Koten, Zhang, Zhao   +71 more
core   +1 more source

Selenium Nanomaterials for Wound Healing: Synergistic Strategies from Anti‐Infection to Tissue Regeneration

Advanced NanoBiomed Research, EarlyView.
Selenium nanoparticles (SeNPs) are emerging as multifunctional platforms for wound healing, integrating antimicrobial, anti‐inflammatory, and proregenerative activities. This review summarises key mechanisms and recent advances in SeNP‐enabled composite dressings, immunomodulatory nanocomposites, microenvironment‐responsive hydrogels, photothermal and ...
Yangxia Chen, Xiaoshuang Liang, Sirui Li, Shuoshan Li, Wei Liu, Yingping Lin, Siqi Li, Zehang Zhang, Judun Zheng, Tianfeng Chen, Rongyi Chen   +10 more
wiley   +1 more source