Floppy molecules as candidates for achieving optoelectronic molecular devices without skeletal rearrangement or bond breaking

2017 ◽  
Vol 19 (45) ◽  
pp. 30842-30851 ◽  
Author(s):  
Ioan Bâldea
Keyword(s):  
Molecular Devices ◽  
Bond Breaking ◽  
Torsional Angle ◽  
Skeletal Rearrangement ◽  
Floppy Molecules

Illumination can change the torsional angle of floppy molecules, a behavior that can be used to fabricate molecular photoswitches and photoresistances.

Current-induced organic molecule–silicon bond breaking: consequences for molecular devices

2000 ◽  
Vol 457 (3) ◽  
pp. L425-L431 ◽  
Author(s):  
S.N. Patitsas ◽  
G.P. Lopinski ◽  
O. Hul'ko ◽  
D.J. Moffatt ◽  
R.A. Wolkow
Keyword(s):  
Organic Molecule ◽  
Molecular Devices ◽  
Bond Breaking

Atomistic simulation of the uniaxial compression of black phosphorene nanotubes

2018 ◽  
Author(s):  
Van-Trang Nguyen ◽  
Minh-Quy Le
Keyword(s):  
Finite Element Method ◽  
Molecular Dynamics ◽  
Finite Element ◽  
Uniaxial Compression ◽  
Critical Stress ◽  
Atomistic Simulation ◽  
Critical Strain ◽  
Bond Breaking ◽  
Black Phosphorene ◽  
Weber Potential

We study through molecular dynamics finite element method with Stillinger-Weber potential the uniaxial compression of (0, 24) armchair and (31, 0) zigzag black phosphorene nanotubes with approximately equal diameters. Young's modulus, critical stress and critical strain are estimated with various tube lengths. It is found that under uniaxial compression the (0, 24) armchair black phosphorene nanotube buckles, whereas the failure of the (31, 0) zigzag one is caused by local bond breaking near the boundary.

scholarly journals Ca2+ Signaling and Its Potential Targeting in Pancreatic Ductal Carcinoma

Cancers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 3085
Author(s):  
Louay Bettaieb ◽  
Maxime Brulé ◽  
Axel Chomy ◽  
Mel Diedro ◽  
Malory Fruit ◽  
...  
Keyword(s):  
Pancreatic Cancer ◽  
Exocrine Pancreas ◽  
Ductal Carcinoma ◽  
Ductal Adenocarcinoma ◽  
Molecular Devices ◽  
Pancreatic Ductal Carcinoma ◽  
Aberrant Expression ◽  
Common Cause ◽  
Cancer Hallmarks ◽  
Cancer Mutations

Pancreatic cancer (PC) is a major cause of cancer-associated mortality in Western countries (and estimated to be the second cause of cancer deaths by 2030). The main form of PC is pancreatic adenocarcinoma, which is the fourth most common cause of cancer-related death, and this situation has remained virtually unchanged for several decades. Pancreatic ductal adenocarcinoma (PDAC) is inherently linked to the unique physiology and microenvironment of the exocrine pancreas, such as pH, mechanical stress, and hypoxia. Of them, calcium (Ca2+) signals, being pivotal molecular devices in sensing and integrating signals from the microenvironment, are emerging to be particularly relevant in cancer. Mutations or aberrant expression of key proteins that control Ca2+ levels can cause deregulation of Ca2+-dependent effectors that control signaling pathways determining the cells’ behavior in a way that promotes pathophysiological cancer hallmarks, such as enhanced proliferation, survival and invasion. So far, it is essentially unknown how the cancer-associated Ca2+ signaling is regulated within the characteristic landscape of PDAC. This work provides a complete overview of the Ca2+ signaling and its main players in PDAC. Special consideration is given to the Ca2+ signaling as a potential target in PDAC treatment and its role in drug resistance.

Alteration of Wettability of Copper–Copper Oxide Nanocomposites through Cu–O Bond Breaking Swayed by Ultraviolet and Electron Irradiation

Langmuir ◽  
2021 ◽  
Author(s):  
Sriparna Chatterjee ◽  
Pritam Das ◽  
Pratibha K Giri ◽  
Unnikrishnan Manju ◽  
Laxmidhar Besra ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Electron Irradiation ◽  
Bond Breaking

Ligand Cleavage Put into Reverse: PC Bond Breaking and Remaking in an Alkylphosphane Iron Complex

2006 ◽  
Vol 12 (16) ◽  
pp. 4313-4320 ◽  
Author(s):  
Stephan W. Kohl ◽  
Frank W. Heinemann ◽  
Markus Hummert ◽  
Walter Bauer ◽  
Andreas Grohmann
Keyword(s):  
Iron Complex ◽  
Bond Breaking

scholarly journals Constitutive modeling of bond breaking and healing kinetics of physical Polyampholyte (PA) gel

2021 ◽  
Vol 43 ◽  
pp. 101184
Author(s):  
Sairam Pamulaparthi Venkata ◽  
Kunpeng Cui ◽  
Jingyi Guo ◽  
Alan T. Zehnder ◽  
Jian Ping Gong ◽  
...  
Keyword(s):  
Constitutive Modeling ◽  
Bond Breaking ◽  
Kinetics Of

scholarly journals Design and Performance Study of Clutch Disc Assembly of Wide-Angle, Large-Hysteresis, Multistage Damper

2021 ◽  
Vol 34 (1) ◽  
Author(s):  
Maoqing Xie ◽  
Leigang Wang ◽  
Yao Huang
Keyword(s):  
Vibration Damping ◽  
Torsional Angle ◽  
Wide Angle ◽  
Combined Approach ◽  
Performance Study ◽  
Large Hysteresis ◽  
Product Service ◽  
Innovative Products ◽  
Low Stiffness ◽  
And Performance

AbstractThe clutch is an important component of the vehicle driveline system. One of its major functions is to attenuate or eliminate the torsional vibration and noise of the driveline system caused by the engine. Based on experiments of vibration damping under different vehicle conditions, the structure and functional principle of a clutch-driven disc assembly for a wide-angle, large-hysteresis, multistage damper is investigated in this study using an innovative combined approach. Furthermore, a systematic integration of key technologies, including wide-angle low-stiffness damping technology, large-hysteresis clutch technology, a novel split pre-damping structure technology, damping structure technology for component cushioning, and multistage damping structure technology, is proposed. The results show that the total torsional angle of the wide-angle large-hysteresis, multistage damper is more than twice that of the traditional clutch damper. The multistage damping design allows a better consideration of various damping requirements under different vehicle conditions, which can effectively address problems of severe idle vibrations and torsional resonance that occur under idled and accelerated conditions. Meanwhile, the use of a large-hysteresis structure and wear-resistant materials not only improves the vibration damping performance, but also prolongs the product service life, consequently resulting in multi-faceted optimization and innovative products.

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