Results 41 to 50 of about 300,802 (279)

Investigation of Some Crown Ether Compounds for Electrochemical Determination of Dopamine

Düzce Üniversitesi Bilim ve Teknoloji Dergisi
In this study, the use of three different crown ether-modified electrodes prepared by electropolymerization of different crown ether compounds (CE1, CE2 and CE3) on multi-walled carbon nanotube (MWCNT) modified glassy carbon electrode (GCE) surfaces was ...
İrem Okman Koçoğlu
doaj   +1 more source

Organic-inorganic hybrid nanomaterials prepared from 4- formyl benzo-12-crown-4-ether and silica coated magnetite nanoparticles [PDF]

Journal of Nanostructures, 2011
Silica  coated magnetite  nanoparticles were  covalent  grafted with  3-aminopropyl trimethoxysilane  to give APTSCMNPs. Reaction of  the resulted nanomaterial with 4-formyl benzo-12-crown-4 ether afforded FB12C4/APTSMNPs  nanocomposite  material  in ...
M. Masteri-Farahani, M. Bahmanyar, M. Mohammadikish   +2 more
doaj   +1 more source

High‐Efficiency Deep Blue Single‐Gaussian Europium(II) Emitters and Their Emitter‐Host Interactions

Advanced Functional Materials, EarlyView.
Crown‐ether ligands and carborate anions enable vacuum‐processable Eu(II) emitters with efficient single‐Gaussian deep‐blue luminescence. Combined photophysical and computational analyses reveal that excited‐electron confinement and steric shielding of the europium center jointly govern compatibility with OLED host materials, establishing molecular ...
Mahmoud Soleimani, Paulius Imbrasas, Jan‐Michael Mewes, Felix Kaden, Stephanie Anna Buchholtz, Karl Leo, Sebastian Schellhammer, Carsten Rothe, Sebastian Reineke   +8 more
wiley   +1 more source

Preparation and Performance Analysis of Anion Exchange Membranes Modified with Chromotropic Acid Grafted 18⁃Crown⁃6 Ether on Polyvinyl Alcohol

Liaoning Shiyou Huagong Daxue xuebao
The quaternary ammonium group (QA) commonly used in conventional anion exchange membranes (AEMs) has a low dissociation constant with OH-, resulting in poor conductivity. The crown ether group can significantly enhance the ion exchange capacity (IEC) and
Ningda ZHANG, Lulu WANG, Yang ZHANG, Fan ZHANG, Jilin WANG   +4 more
doaj   +1 more source

Photovoltaic Stimulation of Mouse and Pig Retina With Pyrolytic Carbon Microelectrodes Integrated on High‐Density Silicon Solar Cell Arrays

Advanced Healthcare Materials, EarlyView.
In this study, we fabricate photovoltaic retinal implants with pyrolytic carbon electrodes and test their ability to stimulate mouse and pig retinas when illuminated with near‐infrared light. We find increased spiking activity in both animal models compared to spontaneous activity and TTX controls and analyze the spike amplitude, latency and frequency.
Akihiro Matsumoto, Pratik Kusumanchi, Jesper Guldsmed Madsen, Asbjørn Cortnum Jørgensen, Gisele Alves dos Reis Benatto, Sune Thorsteinsson, Peter Behrensdorff Poulsen, Keisuke Yonehara, Toke Bek, Stephan Sylvest Keller, Rasmus Schmidt Davidsen   +10 more
wiley   +1 more source

Crown ether-induced supramolecular passivation and two-dimensional crystal interlayer formation in perovskite photovoltaics

Cell Reports Physical Science, 2021
Summary: It is challenging to realize high efficiency and stability in perovskite photovoltaics simultaneously. Here, we show supramolecular chemistry using macrocyclic crown ether to prepare high-performance metal-halide perovskite films.
Peng Gao, Yujin Ji, Jingnan Song, Guanqing Zhou, Junqi Lai, Xuemiao Yin, Youyong Li, Tao Song, Zhe Zhao, Qi Chen, Wei Feng, Liwei Chen, Yongming Zhang, Shihe Yang, Baoquan Sun, Feng Liu   +15 more
doaj   +1 more source

Clustomesogen Showing Sub‐Zero Liquid Crystal Properties: Supramolecular Assembly Between Cs2[Mo6Ii8(OCOC2F5)6] and Hexaethylenoxide Containing Mesogenic Dimers

Advanced Materials, EarlyView.
Associating a red‐NIR phosphorescent octahedral hexanuclear molybdenum cluster compound with hexaethyleneoxide chains bearing mesogenic units on both ends leads to an emissive hybrid liquid crystal showing mesomorphism on a very unusual temperature range down to −25°C.
Killiann Heinz, Jeanne Rebours, Zoulikha Zerrouqi, Noée Dumait, Maria Amela‐Cortes, Nikolai Scheuring, Sara Simonovska, Sebastian Marino, Max Ebert, Stéphane Cordier, Sabine Laschat, Yann Molard   +11 more
wiley   +1 more source

Ether-Group-Mediated Aqueous Proton Selective Transfer across Graphene-Embedded 18-Crown‑6 Ether Pores

, 2019
Nanoporous two-dimensional (2D) materials provide a new avenue for the design of zero-crossover proton selective membrane, which is critical for the development of direct methanol fuel cells and many other renewable energy systems.
Ao Xu (2568670), Yonghong Cheng (1342263), Le Shi (1860796)   +2 more
core   +1 more source

Guest-Driven Control of Folding in a Crown-Ether-Functionalized ortho-Phenylene

, 2022
A crown-ether-functionalized o-phenylene tetramer has been synthesized and coassembled with monotopic and ditopic, achiral and chiral secondary ammonium ion guests.
Sumalatha Peddi, C. Scott Hartley, Gopi Nath Vemuri, Molly C. Bookout (11943582), C. Scott Hartley (1386309), Gopi Nath Vemuri (11557174), Sumalatha Peddi (11943579), Molly C. Bookout   +7 more
core   +1 more source

“Smelltronics”—From Gas to Smell Sensing

Advanced Materials, EarlyView.
The emerging field of smelltronics, encompassing sensing technologies for complex volatile organic compounds, holds significant potential for extracting valuable chemical information. It facilitates the noninvasive, real‐time monitoring of humans, food, and the environment.
Takeshi Ono, Tsunaki Takahashi, Jiangyang Liu, Haruka Honda, Zeng Jing, Wataru Tanaka, Takuro Hosomi, Takeshi Yanagida   +7 more
wiley   +1 more source