Results 111 to 120 of about 64,242 (295)

Label‐Free Sensing of Coronaviral Sequences via Kretschmann‐Configuration Reflectance Spectroscopic Ellipsometry: Sensitivity, Specificity, and Interfacial Effects

Advanced Materials Interfaces, EarlyView.
Spectroscopic ellipsometry in the Kretschmann‐Raether configuration (KRSE) is employed to characterize a DNA‐functionalized platform for viral sequence recognition. By merging SE with surface plasmon resonance, KRSE outperforms conventional SE, achieving nanomolar targeting through resonance wavelength shifts (δλ) measurements. Its enhanced interfacial
Silvia Maria Cristina Rotondi, Paolo Canepa, Francesco Bisio, Ornella Cavalleri, Maurizio Canepa   +4 more
wiley   +1 more source

Observations of Isolated Mobile Au–Br and Au–S Surface Complexes on Au(100) Electrodes

Angewandte Chemie, EarlyView.
Fast scanning tunneling microscopy measurements reveal the formation of Au–Br and Au–S surface complexes on Au(100) electrodes in aqueous electrolytes. These complexes are stable and diffuse as molecular entities over the Au surface, demonstrating that surface transport via complexes has to be considered in wet‐chemical growth and dissolution processes.
Chaolong Yang, Olaf M. Magnussen
wiley   +2 more sources

The Temperature and Voltage Resistance Performance of Phenyl‐Modified Silicone Elastomers for High‐Voltage and High‐Power Semiconductor Device Encapsulation

High Voltage
Silicon carbide (SiC) high‐voltage, high‐power semiconductor devices are essential for next‐generation power systems, yet conventional silicone elastomer encapsulation materials suffer from insulation degradation under extreme thermal and electrical ...
Dongxin He, Haochen Wang, Yuchao Li, Yue Wang, Qingfa Li, Qingquan Li   +5 more
doaj   +1 more source

Non-characteristic Harmonic Analysis of Uhv ac/dc Systems

MATEC Web of Conferences, 2019
Uhv direct current transmission has developed rapidly in China due to its unique advantages of large capacity, long distance and high voltage. A series of researches have been carried out on the non-characteristic harmonic current in the grid side of uhv
Gong Jie, Zhou Lixing, Zhou Lawu, Zhou Mengdi   +3 more
doaj   +1 more source

Probing a Reactive Alkyne Center Aligned via a Triphenylmethane Tripod on Au(111) for Electric Field-Induced Chemistry by STM and TERS. [PDF]

Small
Electric‐field‐induced chemistry at solid/vacuum interfaces offers precise control over chemical reactions. In this study, a triphenylmethane‐based tripod with a terminal alkyne is anchored upright on a gold surface. Advanced scanning tunneling microscopy and tip‐enhanced Raman scattering confirm the alignment and stability of the reactive center ...
Mennicken S, Li G, Zhu LY, Schäfer D, Reichenauer T, Mehrparvar S, Choi N, Zhang Y, Haberhauer G, Dong ZC, Schlücker S.   +10 more
europepmc   +2 more sources

Surface friction of rock in terrestrial and simulated lunar environments [PDF]

The conventional probe-on-the rotating-disk concept was used to determine the surface friction in mineral probe/specimen interfaces. Nine rocks or minerals and two stainless steels were tested in both new (NT) and same track (ST) tests under three ...
Peng, S. S., Roepke, W. W.
core   +1 more source

Diffusive Charge Transport in Graphene on SiO2

, 2008
We review our recent work on the physical mechanisms limiting the mobility of graphene on SiO2. We have used intentional addition of charged scattering impurities and systematic variation of the dielectric environment to differentiate the effects of ...
Adam, Adam, Ando, Aranda-Espinoza, Bennett, Berger, Bolotin, C. Jang, Caragiu, Cheianov, Chen, Chen, Chen, Dresselhaus, E.D. Williams, Fasolino, Ferrari, Fischetti, Fratini, Geringer, Goldberg, Hess, Huard, Hwang, Hwang, Ishigami, J.-H. Chen, Jang, Katsnelson, Krim, M. Ishigami, M.S. Fuhrer, Meric, Nomura, Novikov, Novoselov, Novoselov, Ono, Ozyilmaz, Pennington, Perebeinos, Pietronero, S. Xiao, Sabio, Sanfelixa, Shon, Sjovall, Stauber, Sugihara, Suzuura, Tan, W.G. Cullen, Williams, Woods, Zhou, Ziambaras   +55 more
core   +1 more source

Development of Laterally Graded X‐Ray Multilayer Optics

Advanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi, Wadwan Singhapong, Wai Jue Tan, Andrey Sokolov, Stefano Agrestini, Mirian Garcia‐Fernandez, Kejin Zhou, Andrew C. Walters, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal J. Sawhney   +11 more
wiley   +1 more source

Cohomology of group theoretic Dehn fillings I: Cohen-Lyndon type theorems

, 2019
This is the first paper of three papers in a row aiming to study cohomology of group theoretic Dehn fillings. In the present paper, we prove a particular free product structure, which is termed the Cohen-Lyndon property, of Dehn filling kernels.
Agol, Agol, Antolín, Bin Sun, Bowditch, Brown, Cohen, Dahmani, Dahmani, Edjvet, Farb, Groves, Groves, Karrass, Ol'shanskiĭ, Osin, Osin, Robinson, Sun, Sun, Thurston   +20 more
core   +1 more source

Gallium Nitride Semiconductor Resonant Tunneling Transistor

Advanced Science, EarlyView.
Three‐terminal GaN semiconductor resonant tunneling transistors (RTTs), which comprise an double‐barrier AlN/GaN/AlN resonant tunneling diode integrated with a GaN high‐electron‐mobility transistor (HEMT) through epitaxial growth in series and parallel configuraions, respectively.
Fang Liu, JunShuai Xue, GuanLin Wu, JinYuan Yuan, JiaJia Yao, RenJie Liu, Zhuang Guo, ZeHui Li, HaoRan Hu, WenBo Sun, Cheng Zhao, ChenKai Zhang, XinYan Liu, Kai Zhang, JinCheng Zhang, Yue Hao   +15 more
wiley   +1 more source