Spectroscopy of spontaneous Raman scattering of a liquid-water local structure in the field of an intense ultrasound pulse

Brysev, A. P.; Бункин, А. Ф.; Klopotov, R. V.; Krutyanskii, L. M.; Nurmatov, A. A.; Першин, С. М.

doi:10.1134/1.1503760

Cited by 10 publications

(3 citation statements)

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“…1c ). The mechanical disturbances 24 of the fluid and tissue in the ultrasound focal zone take the form of compression and expansion deformations as well as bulk tissue distortions caused by acoustic radiation forces, but at low pressures they were not large enough to influence C. elegans locomotion. Previous studies have shown that ultrasound waves can cause temperature changes in the focal zone 25 .…”

Section: Resultsmentioning

confidence: 99%

Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans

et al. 2015

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A major challenge in neuroscience is to reliably activate individual neurons, particularly those in deeper brain regions. Current optogenetic approaches require invasive surgical procedures to deliver light of specific wavelengths to target cells in order to activate or silence them. Here, we demonstrate the use of low-pressure ultrasound as a non-invasive trigger to activate specific ultrasonically-sensitized neurons in the nematode, Caenorhabditis elegans. We first show that wild-type animals are insensitive to low pressure ultrasound and require gas-filled microbubbles to transduce the ultrasound wave. We find that neuron-specific misexpression of TRP-4, the pore-forming subunit of a mechanotransduction channel, sensitizes neurons to ultrasound stimulus resulting in motor outputs. Furthermore, we use this approach to manipulate the function of sensory neurons and interneurons and identify a role for the PVD sensory neurons in modifying locomotory behaviors. We suggest this method can be broadly applied to manipulate cellular functions in vivo.

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Section: Resultsmentioning

confidence: 99%

Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans

et al. 2015

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“…Generally, molecular association is sensitive to temperature and the concentrations of ions and dissolved gases 1,2 and can be influenced by external electromagnetic or acoustic fields. 3,4 The concentration of water molecules in the room temperature liquid, which are not essentially perturbed by hydrogen bonding, is known not to exceed about 1%. 5 One can expect, therefore, that only a minor proportion of H 2 O molecules at any given instance are free from hydrogen bonding and therefore show relatively free reorientation in a liquid phase.…”

Section: Introductionmentioning

confidence: 99%

Four‐photon coherent spectroscopy of orientational motion of H₂O molecules in liquid water

Бункин

Nurmatov

Першин

et al. 2005

J Raman Spectroscopy

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The unexpectedly narrow structure of Rayleigh wing spectra from 5 to 50 cm −1 was detected using four-photon coherent laser spectroscopy. The observed features were compared with the IR water vapor absorption (from the HITRAN database) and with the spontaneous Raman spectrum in the vapor phase. The fairly good resemblance between our recorded four-photon spectrum and the pure rotational spectra of H 2 O molecules in the gas phase allows the suggestion that a discernible proportion of water molecules may exhibit virtually free rotation in the liquid phase.

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“…Ранее спектры СКР в воде изучались в работах [14][15][16][17][18]. При этом исследовалась главным образом область высоких частот (2800−3500 cm −1 ).…”

Section: Introductionunclassified

Спонтанное И Вынужденное Комбинационное Рассеяние Света В Протиевой И Дейтериевой Воде -=sup=-*-=/Sup=-

Горелик¹,

Bi²,

Войнов³

et al. 2019

Журнал Технической Физики

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Comparison of Raman scattering spectra for different samples of protium and deuterium water has been done. Registration of spectra was held with the help of fiber optics technique and BWS465-785H small sized spectrometer. For excitation of spontaneous Raman scattering spectra the continuously working laser (λ=785 nm) has been used. The essential differences of low frequency Raman scattering spectra for different water samples have been observed. Such differences have been explained by the presence of structural defects and imperfections in analyzed water. Stimulated Raman scattering spectra in protium and deuterium water have been observed with excitation by picosecond laser pulses with wavelength 532 nm. Low frequency Raman satellites in Stimulated Raman scattering spectra have been recorded, related to clusters of several water molecules.

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Spectroscopy of spontaneous Raman scattering of a liquid-water local structure in the field of an intense ultrasound pulse

Cited by 10 publications

References 4 publications

Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans

Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans

Four‐photon coherent spectroscopy of orientational motion of H₂O molecules in liquid water

Спонтанное И Вынужденное Комбинационное Рассеяние Света В Протиевой И Дейтериевой Воде -=sup=-*-=/Sup=-

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Spectroscopy of spontaneous Raman scattering of a liquid-water local structure in the field of an intense ultrasound pulse

Cited by 10 publications

References 4 publications

Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans

Sonogenetics is a non-invasive approach to activating neurons in Caenorhabditis elegans

Four‐photon coherent spectroscopy of orientational motion of H2O molecules in liquid water

Спонтанное И Вынужденное Комбинационное Рассеяние Света В Протиевой И Дейтериевой Воде -=sup=-*-=/Sup=-

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Four‐photon coherent spectroscopy of orientational motion of H₂O molecules in liquid water