Results 61 to 70 of about 234,784 (289)

Drug-Release Mechanisms Elucidated by Imaging Techniques: Visualizing the Invisible!

Pharmaceutics, 2022
Imaging techniques such as Raman spectroscopy, electron microscopy, laser scanning confocal microscopy, atomic force microscopy, tomography, magnetic resonance imaging, and terahertz are powerful tools to elucidate drug-release mechanisms from different ...
Susanne Florin-Muschert
doaj   +1 more source

Raman-scattering study of the phonon dispersion in twisted bi-layer graphene

, 2013
Bi-layer graphene with a twist angle \theta\ between the layers generates a superlattice structure known as Moir\'{e} pattern. This superlattice provides a \theta-dependent q wavevector that activates phonons in the interior of the Brillouin zone.
Achete, C. A., Campos-Delgado, J., Cançado, L. G., Jorio, A., Raskin, J. -P.   +4 more
core   +1 more source

Stress effects on the Raman spectrum of an amorphous material: theory and experiment on a-Si:H [PDF]

, 2015
Strain in a material induces shifts in vibrational frequencies, which is a probe of the nature of the vibrations and interatomic potentials, and can be used to map local stress/strain distributions via Raman microscopy.
Buonassisi, Tonio, Grossman, Jeffrey C., Johlin, Eric C., Kirkpatrick, Timothy R., Strubbe, David A.   +4 more
core   +3 more sources

Encyclopedia of 2D β′‐In2Se3 Growth Using Chemical Vapor Deposition: The Effects of Synthesis Parameters Onto Material Quality

Advanced Engineering Materials, EarlyView.
A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge, P. Sanju S. Panawala, Joseph F. S. Fernando, Zhenhuan Chen, Chao Zhang, Dong‐Chen Qi, Liangzhi Kou, Konstantin L. Firestein, Dmitri V. Golberg   +8 more
wiley   +1 more source

Development of Microscopy Apparatus Switchable between Fluorescence and Ultralow-Frequency Raman Modes

Journal of Analytical Methods in Chemistry, 2022
In this study, a microscopy apparatus that can switch between the fluorescence microscopy and ultralow-frequency Raman microscopy modes was developed.
Ken Takazawa
doaj   +1 more source

Morphology of Graphene on SiC(000-1) Surfaces

, 2009
Graphene is formed on SiC(000-1) surfaces (the so-called C-face of the crystal) by annealing in vacuum, with the resulting films characterized by atomic force microscopy, Auger electron spectroscopy, scanning Auger microscopy and Raman spectroscopy ...
Feenstra, R. M., Fisher, P. J., Gu, Gong, Healey, P., Kedzierski, J., Luxmi, Srivastava, N., Sun, Yugang   +7 more
core   +1 more source

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Effect of Scatterering on Coherent Anti-Stokes Raman Scattering (CARS) signals [PDF]

, 2017
We develop a computational framework to examine the factors responsible for scattering-induced distortions of coherent anti-Stokes Raman scattering (CARS) signals in turbid samples. We apply the Huygens-Fresnel Wave-based Electric Field Superposition (HF-
de Vito, Giuseppe, Piazza, Vincenzo, Potma, Eric O., Ranasinghesagara, Janaka C., Venugopalan, Vasan   +4 more
core   +2 more sources

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

Advanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng, Qian Yao, Yanan Sun, Hongyu Lv, Zhongchao Bai, Guoliang Zhang, Nana Wang, Jian Yang   +7 more
wiley   +1 more source

Machine learning methods for spectrally-resolved imaging analysis in neuro-oncology

Biomedical Photonics
To reduce the frequency of relapses after surgical removal a brain tumor, it is critically important to completely remove all affected areas of the brain without disrupting the functionality of vital organs.
T. A. Savelieva, I. D. Romanishkin, A. Ospanov, K. G. Linkov, S. A. Goryajnov, G. V. Pavlova, I. N. Pronin, V. B. Loschenov   +7 more
doaj   +1 more source