Results 61 to 70 of about 135,127 (291)

Flexible aromatic disulfide monomers for high-performance self-healable linear and cross-linked poly(urethane-urea) coatings [PDF]

, 2019
Implementation of the self-healing concept in coatings is challenging because they have to combine mechanical strength and chain mobility. This challenge is addressed in this work by studying the effect of the polymer microstructure on the mechanical ...
Asua González, José María, Ballard, Nicholas, Fernández San Martín, Mercedes, Nevejans, Sil, Reck, Bernd   +4 more
core   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source

Dynamic polymeric materials based on reversible B–O bonds with dative boron–nitrogen coordination

SmartMat, 2023
To minimize the environmental pollution caused by polymeric waste, materials based  dynamic chemistry have attracted extensive attention around the world.
Zi‐Han Zhao, Cheng‐Hui Li, Jing‐Lin Zuo   +2 more
doaj   +1 more source

Closed-loop recycling of plastics enabled by dynamic covalent diketoenamine bonds. [PDF]

, 2019
Recycled plastics are low-value commodities due to residual impurities and the degradation of polymer properties with each cycle of re-use. Plastics that undergo reversible polymerization allow high-value monomers to be recovered and re-manufactured into
Christensen, Peter R, Helms, Brett A, Loeffler, Kathryn E, Scheuermann, Angelique M   +3 more
core   +1 more source

Mechanisms of Auger-induced chemistry derived from wave packet dynamics [PDF]

, 2009
To understand how core ionization and subsequent Auger decay lead to bond breaking in large systems, we simulate the wave packet dynamics of electrons in the hydrogenated diamond nanoparticle C_(197)H_(112).
Feldmeier, J. T. Su, K  ppe, Su, W. A. Goddard   +4 more
core   +2 more sources

YAP1::TFE3 mediates endothelial‐to‐mesenchymal plasticity in epithelioid hemangioendothelioma

Molecular Oncology, EarlyView.
The YAP1::TFE3 fusion protein drives endothelial‐to‐mesenchymal transition (EndMT) plasticity, resulting in the loss of endothelial characteristics and gain of mesenchymal‐like properties, including resistance to anoikis, increased migratory capacity, and loss of contact growth inhibition in endothelial cells.
Ant Murphy, Samuel Hartzler, Paula A. Vargas Carranza, Shyaman Jayasundara, Madison E. Yates, Nimod D. Janson, Bozhi Liu, Annaleigh Benton, Majid Kazemian, Jason A. Hanna   +9 more
wiley   +1 more source

Shape memory polyimides with large strain and high temperature resistance based on covalent-noncovalent dual-crosslinked networks

Advanced Industrial and Engineering Polymer Research
High-temperature shape memory polymers (SMPs) often face inherent trade-offs between strain capacity and thermal stability. To address this challenge, we develop a novel shape memory polyimide (SMPI) that concurrently achieves record-breaking high ...
Xiuting Li, Xinyan Zhou, Rui Shang, Qingsong Xu, Jie Dong, Xin Zhao, Qinghua Zhang   +6 more
doaj   +1 more source

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

A Novel Polyvinyl Alcohol‐Based Hydrogel with Ultra‐Fast Self‐Healing Ability and Excellent Stretchability Based on Multi Dynamic Covalent Bond Cross‐Linking

Macromolecular Materials and Engineering, 2023
A novel self‐healing poly(vinyl alcohol) (PVA)‐based hydrogel is developed by cross‐linking PVA chains through multi dynamic covalent bonds by use of a small cross‐linker composed by 4‐formylphenylboric acid (FPBA) and lysine (Lys).
Nan Ji, Jin Luo, Weiwei Zhang, Jun Sun, Jianjun Wang, Chuanxiang Qin, Qiqi Zhuo, Lixing Dai   +7 more
doaj   +1 more source

Tying Covalent Organic Frameworks through Alkene Metathesis and Supported Platinum as Efficient Catalysts for Hydrosilylation

Nanomaterials, 2022
Recently there has been a great interest in covalent organic frameworks due to their fascinating properties. Current approaches to improve their hydrolytic stability mainly rely on the transformation of the dynamic bonds into strong and irreversible ...
Defa Gu, Guangwen Li, Yushan Liu, Yuzhou Liu   +3 more
doaj   +1 more source