Results 101 to 110 of about 207,770 (335)

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Unexpected transformation of dissolved phenols to toxic dicarbonyls by hydroxyl radicals and UV light. [PDF]

, 2018
Water treatment systems frequently use strong oxidants or UV light to degrade chemicals that pose human health risks. Unfortunately, these treatments can result in the unintended transformation of organic contaminants into toxic products.
Ford, Breanna, Nomura, Daniel K, Prasse, Carsten, Sedlak, David L   +3 more
core   +1 more source

Eco-friendly K-10 Clay-Mediated [3 + 3] Spiroannulation of Morita–Baylis–Hillman Adduct of Isatin with Anthracene: Synthesis of Green Fluorophore Compounds

, 2023
Vadivel Vaithiyanathan, Sivaprakasam Sivaraman   +1 more
openalex   +1 more source

Polarize the Solvent to Regulate the Intermediate Phase and Dynamic Crystallization of Perovskite Films

Advanced Materials, EarlyView.
A solvent engineering strategy using polar polymers is introduced to regulate perovskite crystallization dynamics in solar cells. Strongly polarized fluorinated groups stabilize the intermediate phase and control solvent exfoliation, leading to high‐quality films with suppressed defects.
Zhuoqiong Zhang, Yunfan Wang, Weizhen Wang, Yulan Huang, Shanchao Ouyang, Yonggui Sun, Fei Wang, Xianfang Zhou, Guichuan Xing, Shu Kong So, Guozhong Xing, Hanlin Hu, Songhua Cai, Sai‐Wing Tsang, Tom Wu   +14 more
wiley   +1 more source

Polyunsaturated fatty acids increase lipid radical formation induced by oxidant stress in endothelial cells

Journal of Lipid Research, 1994
Lipid-derived free radicals were detected by electron paramagnetic resonance (EPR) spectrometry when cultured endothelial cells attached to Cytodex beads were exposed to iron-induced oxidant stress in the presence of the spin trap alpha-(4-pyridyl-1 ...
L S Alexander-North, J A North, K P Kiminyo, G R Buettner, A A Spector   +4 more
doaj   +1 more source

Synthesis, characterization and antifungal assessment of optically active bis-organotin compounds derived from (S)-BINOL diesters [PDF]

, 2019
Background: Organotin(IV) derivatives have appeared recently as potential biologically active metallopharmaceuticals exhibiting a variety of therapeutic activities.
Costantino, Andrea Rosana, Koll, Liliana Cristina, Mandolesi, Sandra Delia, Neudörfl, Jörg M., Ocampo, Romina Andrea, Svetaz, Laura Andrea, Zacchino, Susana Alicia Stella   +6 more
core   +1 more source

N‐heterocyclic Carbenes as Adhesion Promoters on Aluminum Alloy 6061

Advanced Materials Interfaces, EarlyView.
N‐heterocyclic carbenes as novel non‐toxic surface primers for aluminum alloys for better adhesive bonding, because strong adhesive bonding shouldn't come at the cost of poisoning the human body. The impact of NHC functionalization on adhesive joint strength and durability is also evaluated using a single‐lap‐shear test, following continuous exposure ...
Jashanpreet Kaur, Vikram Singh, Alban Morel, Amélie Ruest, Mark D. Aloisio, Cathleen M. Crudden, Janine Mauzeroll   +6 more
wiley   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

Advanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias, Maxwell J. Munford, Frederik C.H. Masure, Richard J. van Arkel, Reece N Oosterbeek   +4 more
wiley   +1 more source

Unilateral Ankle‐Foot Exoneuromusculoskeleton with Balance‐Sensing Feedback for Self‐Help Telerehabilitation after Stroke

Advanced Robotics Research, EarlyView.
This study introduces a hybrid robot that integrates mechanical assistance by musculoskeletons (i.e., soft pneumatic muscle with rigid exoskeletal extensions), neuromuscular electrical stimulation, and vibrotactile feedback in a lightweight wearable mechatronic complex applicable to the paretic ankle–foot poststroke for gait restoration. The system can
Fuqiang Ye, Wei Rong, Waiming Li, Kwok‐Ting Wong, Man‐Kit Pang, Hon‐Wah Wai, Lilly Li, Zicong Hong, Song Guo, Zong‐Hao Ma, Yongping Zheng, Ming Zhang, Nicholas Chow, Jianing Zhang, Xiaoling Hu, Fei Chen, Waisang Poon   +16 more
wiley   +1 more source

Selective formation of a zwitterion adduct and bicarbonate salt in the efficient CO2 fixation by N-benzyl cyclic guanidine under dry and wet conditions

Beilstein Journal of Organic Chemistry, 2018
The efficient CO2 fixation by N-benzyl cyclic guanidine 1 was achieved by bubbling dry CO2 through CH3CN at 25 °C for 2 h. In addition, the zwitterion adduct 2 and bicarbonate salt 3 were selectively prepared from 1 under dry (in anhydrous CH3CN) and wet
Yoshiaki Yoshida, Naoto Aoyagi, Takeshi Endo   +2 more
doaj   +1 more source