Results 231 to 240 of about 4,450 (261)

Characterization of molecular forms of acetyl- and butyrylcholinesterase in human acoustic neurinomas

Neuroscience Letters, 1999
Acoustic neurinomas were sequentially extracted with saline and saline-Triton X-100 buffers. Detergent was required to detach the bulk of acetylcholinesterase (AChE), but butyrylcholinesterase (BuChE) was mostly released with saline buffer. Sedimentation analysis and hydrophobic chromatography revealed that neurinomas contain principally amphiphilic ...
M S, García-Ayllón, J, Sáez-Valero, C, Piqueras-Pérez, C J, Vidal   +3 more
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Molecular recognition on acoustic wave devices: Zeolite thin films coated with organosilane gate layers

Microporous Materials, 1993
Microporous thin films composed of a molecular coupling layer, zeolite crystals, and a porous silica overlayer, were formed on the gold electrodes of quartz crystal microbalances (QCMs). The silica overlayer enhances the mechanical stability of the zeolite films, and results in additional surface area and porosity as characterized by the sorption ...
Bein, Thomas, Yan, Yongan
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Optically detected acoustic paramagnetic resonance in molecular crystals

Chemical Physics Letters, 1973
Abstract The optically detected acoustic paramagnetic resonance of the metastable triplet state of 1,2,4,5-tetrachlorobenzene (TCB) in zero field is reported. The spin-phonon interaction in molecular crystals is discussed in terms of the direct process single phonon absorption by the paramagnetic spin system.
M.J. Buckley, A.H. Francis
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Transverse Acoustic Modes of Coherent Molecular Motions in Tetracene Crystals

The Journal of Physical Chemistry Letters
Molecules in organic crystals, akin to atoms in inorganic lattices, can act as rigid units whose vibrations mediate thermal transport. While collective molecular motions are expected to generate coherent vibrational modes, including longitudinal acoustic (LA) and transverse acoustic (TA) modes, the coherent excitation of TA modes in molecular crystals ...
Zhixing Liu, Xilai Jia, Buyang Yu, Shuhui Yin, Xiaoyong Wang, Min Xiao, Chunfeng Zhang   +6 more
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The measurement of molecular orientation in fibers by acoustic methods

Journal of Applied Polymer Science, 1960
AbstractIn the present work, the sound velocity in polymeric fibers or film strips is related to a quantitative measure of molecular orientation in the sample. It is shown that this measure of orientation can be calculated from two experimental quantities: the sound velocity in an oriented specimen and the velocity in a randomly oriented sample.
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Topological acoustics

Nature Reviews Materials, 2022
Haoran Xue, Baile Zhang, Yihao Yang
exaly  

Acoustic Biosensors for Noninvasive Imaging of Molecular Processes

Understanding biology in its native context has been a major scientific endeavor. Yet, it is challenging to visualize cellular dynamics at the molecular scale in the context of a living organism at the macroscopic scale. Ultrasound imaging represents a promising candidate to address this challenge, with its unique advantages of large imaging volume ...
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Molecular acoustics

Ultrasonics, 1972
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Molecular Music: The Acoustic Conversion of Molecular Vibrational Spectra

Computer Music Journal, 2000
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Acoustical-molecular techniques for magnetic resonance imaging

2016
Magnetic resonance imaging (MRI) is a remarkably flexible diagnostic platform due to the variety of clinically relevant physical, chemical, and biological phenomena it can detect. In addition to the host of endogenous contrast mechanisms available, MRI functionality can be further extended by incorporating exogenous factors to attain sensitivity to new
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