Results 91 to 100 of about 61,390 (300)

Asymmetric Mass Transport in Polybromide Ionic Liquids and Its Impact on Dual‐Plating Zinc Bromine Batteries

Advanced Science, EarlyView.
This study elucidates mass transport dynamics within polybromide ionic liquids in dual‐plating zinc–bromine batteries using operando impedance spectroscopy. The findings reveal that sluggish polybromide transport during dissolution contrasts with rapid bromide transport during charging.
Sung Il Kim, Kyungjae Shin, Heejung Kang, Seok Hee Han, Hee‐Tak Kim, Taek Dong Chung   +5 more
wiley   +1 more source

A Low‐Permeability TEMPO‐Phosphate as an Anionic Posolyte for Aqueous Redox‐Flow Batteries

Angewandte Chemie, EarlyView.
Phosphate groups are appended to TEMPO‐based active materials for use in aqueous redox‐flow batteries. In addition to improving water‐solubility, these dianionic groups are strongly repelled by the cation‐exchange membrane, thus greatly reducing TEMPO crossover.
Eloi Grignon, Kimia Hosseini, Jônatas Faleiro Berbigier, Ailsa K. Edward, Dwight S. Seferos   +4 more
wiley   +2 more sources

NUCLEOPHILIC SUBSTITUTION REACTION OF CYANIDE AND METHOXYDE IONS TO QUATERNARY MANNICH BASE FROM VANILLIN

Indonesian Journal of Chemistry, 2010
The nucleophilic substitution reaction to quaternary Mannich base from vanillin has been investigated. Mannich reaction to vanillin was carried out by refluxing mixture of vanillin, formaldehyde and dimethyl amine.
Bambang Purwono, Estiana R. P. Daruningsih   +1 more
doaj   +1 more source

Amphiphile of Bis-Quaternary Ammonium Salt

Journal of Japan Oil Chemists' Society, 2000
Amphiphiles of symmetrical bis-quaternary ammonium salts possessing ammonium groups, with methyl as head group, dodecyl and aralkyl as hydrophobic groups, and connected by an alkanediyl were synthesized. Aralkyls are p-heptylbenzyl and 8-phenyloctyl (corresponding ammonium salts are designated “phenylene type” and “phenyl type”, respectively).
Yuki YODA, Tsuneo TAKEZAWA, Yasukazu OHKATSU   +2 more
openaire   +2 more sources

Review: Insight on Porous Carbon Positive Electrode for Sodium‐Ion Capacitors: Interplay Between Synthesis, Properties, and Performance

Advanced Science, EarlyView.
Sodium ion capacitor (SIC) is currently constrained by the low discharge capacity of commercial activated carbon as positive electrode material. This review provides a holistic summary of research efforts on alternative porous carbon materials for SIC. Image created by the authors with www.biorender.com.
Ademola Adeniji, Adrian Beda, Camélia Matei Ghimbeu   +2 more
wiley   +1 more source

GPX4 Inhibitor Resistance and Metastatic Features in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
This study establishes breast cancer cell lines that are resistant to glutathione peroxidase 4 inhibitors (GPX4i) in vitro and investigates the metastatic capacity of the GPX4i‐resistant versus parental lines in vivo. GPX4i‐resistant cells survive upon intravenous injection, but lose capacity to spontaneously metastasize.
Marie Sabatier, Mayher Kaur, Milena Chaufan, Felix‐Levin Hormann, Luiza Martins Nascentes Melo, Mario Palma, Jordan Torpey, Yanshan Liang, Alanis Carmona, Cameron Fraser, Midori Flores, Krystina J. Szylo, Mahsa Yavari, Sheng Hui, Alpaslan Tasdogan, Sven Heiles, Jessalyn M. Ubellacker   +16 more
wiley   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Reconstructed Polyamide Nanolayers via Two‐Stage Interfacial Polymerization Engineering for Precise Ion Sieving

Advanced Science, EarlyView.
A reconstructed polyamide nanofiltration membrane is engineered via a two‐stage interfacial polymerization strategy for lithium extraction from complex brines. Incorporated bidentate quaternary ammonium monomers enable synergistic steric and electrostatic effects within sub‐nanometer channels, achieving 60‐fold lithium enrichment and demonstrating ...
Shuzhen Zhao, Liheng Dai, Feidong Yang, Bowen Li, Pengfei Zhang, Yanyan Liu, Mengyang Hu, Kecheng Guan, Ryosuke Takagi, Hideto Matsuyama   +9 more
wiley   +1 more source

Programmable RNA N6,2´‐O‐Dimethyladenosine Editing

Advanced Science, EarlyView.
ABSTRACT N6,2’‐O‐dimethyladenosine (m6Am) is a prevalent RNA modification located at the first transcribed nucleotide adjacent to the 5′ cap of mRNAs, where it has been implicated in gene regulation. However, the lack of methods for precise, transcript‐specific manipulation of m6Am has limited its functional dissection.
Yang Li, Xiangmin Tan, Yaran Liu, Yongquan He, Bo Yuan, Ping Wang, Guangzhi Ma, Mengzhe Guo, Jian Zhou, Qiang Sun   +9 more
wiley   +1 more source

Towards an asymmetric β-selective addition of azlactones to allenoates

Beilstein Journal of Organic Chemistry
We herein report the asymmetric organocatalytic addition of azlactones to allenoates. Upon using chiral quaternary ammonium salt catalysts, i.e., Maruoka’s binaphthyl-based spirocyclic ammonium salts, the addition of various azlactones to allenoates ...
Behzad Nasiri, Ghaffar Pasdar, Paul Zebrowski, Katharina Röser, David Naderer, Mario Waser   +5 more
doaj   +1 more source