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Articles 31 - 33 of 33
Full-Text Articles in Physical Sciences and Mathematics
Flexible Bielectrode-Based Highly Sensitive Triboelectric Motion Sensor: A Sustainable And Smart Electronic Material, Damian Zamora, Abu Masa Abdullah, Alejandro Flores, Haimanti Majumder, Muhtasim Ul Karim Sadaf, Bahareh Azimi, Serena Danti, M. Jasim Uddin
Flexible Bielectrode-Based Highly Sensitive Triboelectric Motion Sensor: A Sustainable And Smart Electronic Material, Damian Zamora, Abu Masa Abdullah, Alejandro Flores, Haimanti Majumder, Muhtasim Ul Karim Sadaf, Bahareh Azimi, Serena Danti, M. Jasim Uddin
Chemistry Faculty Publications and Presentations
The self-powered and autonomous sensors are incredibly important in advanced engineering, especially defence science. The increasing necessity of simple and smart electronics requires to be sustainably flexible, wearable, and waterproof. Triboelectricity has been a widely used mechanism for motion sensing nowadays. Almost all devices based on triboelectricity require contact between two surfaces. Herein, a touchless triboelectric motion sensor for human motion sensing and movement monitoring is developed. The device was primarily fabricated using simple latex (cis-1,4-polyisoprene) structures and copper (electrode materials), which make it a very cost-effective device for sensory applications. The device is tested with specimens of different areas …
Role Of Imine Isomerization In The Stereocontrol Of The Staudinger Reaction Between Ketenes And Imines, Fernando P. Cossío, Abel De Cózar, Miguel A. Sierra, Luis Casarrubios, Jaime G. Muntaner, Bimal K. Banik, Debasish Bandyopadhyay
Role Of Imine Isomerization In The Stereocontrol Of The Staudinger Reaction Between Ketenes And Imines, Fernando P. Cossío, Abel De Cózar, Miguel A. Sierra, Luis Casarrubios, Jaime G. Muntaner, Bimal K. Banik, Debasish Bandyopadhyay
Chemistry Faculty Publications and Presentations
Computational–experimental analysis has allowed determining that the stereochemistry of the Staudinger reaction between ketenes and imines is strongly associated with the nature of the imine, which affects the two steps of the reaction. The first step, namely the nucleophilic attack of the sp2-hybridized nitrogen atom of the imine on the sp-hybridized carbon atom of the ketene, is affected by the energetically accessible in situ isomerization patterns of the imine. The second step consists of a conrotatory electrocyclization of the zwitterionic intermediate formed in the previous step. This latter pericyclic step depends on the inward/outward torquoelectronic effects generated by the substituents …
Equivalence Of The Transition Heat Capacities Of Proteins And Dna, Matthew W. Eskew, Albert S. Benight
Equivalence Of The Transition Heat Capacities Of Proteins And Dna, Matthew W. Eskew, Albert S. Benight
Chemistry Faculty Publications and Presentations
It has been reported for many globular proteins that the native heat capacity at 25°C, per gram, is the same. This has been interpreted to indicate that heat capacity is a fundamental property of native proteins that provides important information on molecular structure and stability. Heat capacities for both proteins and DNA has been suggested to be related to universal effects of hydration/solvation on native structures. Here we report on results from thermal denaturation analysis of two well-known proteins, human serum albumin and lysozyme, and a short DNA hairpin. The transition heat capacities at the Tm for the three molecules …