Results 31 to 40 of about 1,488 (236)

Chain Breaking Antioxidant Activity of Heavy (S, Se, Te) Chalcogens Substituted Polyphenols

Antioxidants, 2019
Polyphenols are probably the most important family of natural and synthetic chain-breaking antioxidants. Since long ago, chemists have studied how structural (bioinspired) modifications can improve the antioxidant activity of these compounds in terms of ...
Caterina Viglianisi, Stefano Menichetti
doaj   +1 more source

Synthesis of π-conjugated polycyclic compounds by late-stage extrusion of chalcogen fragments

Beilstein Journal of Organic Chemistry
The “precursor approach” has proved particularly valuable for the preparation of insoluble and unstable π-conjugated polycyclic compounds (π-CPCs), which cannot be synthesized via in-solution organic chemistry, for their improved processing, as well as ...
Aissam Okba, Pablo Simón Marqués, Kyohei Matsuo, Naoki Aratani, Hiroko Yamada, Gwénaël Rapenne, Claire Kammerer   +6 more
doaj   +1 more source

Selenopentathionic and Telluropentathionic Acids as Precursors for Formation of Semiconducting Layers on the Surface of Polyamide

International Journal of Photoenergy, 2007
The layers of copper chalcogenides, which were formed on the surface of semihydrophilic polymer—polyamide 6 (PA) using monoselenopentathionic H2SeS4O6 and monotelluropentathionic H2TeS4O6 acids as precursors of chalcogens, were characterized.
Skirma Zalenkiene, Judita Sukyte, Remigijus Ivanauskas, Vitalijus Janickis   +3 more
doaj   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Scale-invariant machine-learning model accelerates the discovery of quaternary chalcogenides with ultralow lattice thermal conductivity

npj Computational Materials, 2022
We design an advanced machine-learning (ML) model based on crystal graph convolutional neural network that is insensitive to volumes (i.e., scale) of the input crystal structures to discover novel quaternary chalcogenides, AMM′Q3 (A/M/M' = alkali ...
Koushik Pal, Cheol Woo Park, Yi Xia, Jiahong Shen, Chris Wolverton   +4 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

MOCVD‐Grown MoS2 Wafers as a Transfer‐Free Platform for Top‐Gate Devices via Dry Interface Engineering

Advanced Materials, EarlyView.
We reveal the electronic origin of hidden interfacial doping in monolayer MoS2 grown by MOCVD, identifying sulfate related and water like species as intrinsic donors. Through dry interface engineering approach, we demonstrate MOCVD‐grown single‐crystal MoS2 wafers as a transfer‐free platform for the reliable evaluation of intrinsic gate stacks and ...
Shuhong Li, Juiteng Chang, Keisuke Atsumi, Kosei Matsumoto, Itsuki Tanaka, Tomonori Nishimura, Kaito Kanahashi, Takahiro Nagata, Jun Nara, Yoshiki Sakuma, Emi Kano, Nobuyuki Ikarashi, Kosuke Nagashio   +12 more
wiley   +1 more source

Recent advances in material chemistry for zinc enabled redox flow batteries

Carbon Neutralization, 2023
The pursuit of green and sustainable energy is a long‐term goal for modern society and people's life. Particularly under the context of carbon neutralization, decarbonization has become a consensus and propels the turning of research enthusiasm to ...
Qing‐Yuan Zhao, Guang‐Yuan Yin, Yi‐Feng Liu, Rui‐Ren Tang, Xiong‐Wei Wu, Xian‐Xiang Zeng   +5 more
doaj   +1 more source

Role of Sulphur and Heavier Chalcogens on the Antioxidant Power and Bioactivity of Natural Phenolic Compounds

Biomolecules, 2022
The activity of natural phenols is primarily associated to their antioxidant potential, but is ultimately expressed in a variety of biological effects. Molecular scaffold manipulation of this large variety of compounds is a currently pursued approach to ...
Maria Laura Alfieri, Lucia Panzella, Riccardo Amorati, Alice Cariola, Luca Valgimigli, Alessandra Napolitano   +5 more
doaj   +1 more source

Photo‐ and Thermally‐Induced Huge Layer Decoupling in Twisted Bilayer WSe2

Advanced Materials, EarlyView.
A newly developed automated dark‐field tomography visualizes twist‐angle‐dependent structural relaxation and quantifies 3D structures in twisted bilayer WSe2. This approach reveals the evolution of local stacking configurations, thermally induced sub‐ångström interlayer decoupling, and light‐driven interlayer expansion on picosecond timescales ...
A. Nakamura, Y. Chiashi, T. Shimojima, Y. Tanaka, S. Akatsuka, M. Sakano, S. Masubuchi, T. Machida, K. Watanabe, T. Taniguchi, K. Ishizaka   +10 more
wiley   +1 more source