Results 21 to 30 of about 1,750,612 (319)

Time-resolved NIR/Vis spectroscopy for analysis of solids: Pharmaceutical tablets [PDF]

open access: yes, 2002
Time-resolved spectroscopy in the visible and near-infrared (NIR) regions was used in a feasibility study for analysis of solid pharmaceuticals. The objective of the experiments was to study the interaction of light with pharmaceutical solids and to ...
Svanberg, Sune,   +10 more
core   +1 more source

Time-resolved photoelectron spectroscopy of organic molecules in aqueous solutions [PDF]

open access: yesEPJ Web of Conferences, 2019
We use time-resolved photoelectron spectroscopy with wavelength-selected XUV femtosecond pulses to study photoinduced dynamics of organic molecules in solutions at millimolar concentrations.
Hummert Johan   +5 more
doaj   +1 more source

Structural rearrangements of membrane proteins probed by water-edited solid-state NMR spectroscopy

open access: yes, 2009
We show that water-edited solid-state NMR spectroscopy allows for probing global protein conformation and residue-specific solvent accessibility in a lipid bilayer environment.
Ader, C.   +8 more
core   +1 more source

Mid-infrared single-pixel imaging at the single-photon level

open access: yesNature Communications, 2023
The authors present an implementation of mid-infrared single-photon computational imaging with a single-element silicon detector. In addition to unique features of single-pixel simplicity and room-temperature operation, the infrared imager offers a ...
Yinqi Wang   +5 more
doaj   +1 more source

Probing molecular motion by double-quantum (13C,13C) solid-state NMR spectroscopy: Application to ubiquitin

open access: yes, 2010
We demonstrate the use of two-dimensional (13C,13C) double-quantum spectroscopy to detect molecular dynamics by solid-state NMR. Data collected on tyrosine-ethylester (TEE) are in line with previously determined (1H,13C) order parameters.
NMR Spectroscopy   +8 more
core   +1 more source

Unified picture of vibrational relaxation of OH stretch at the air/water interface

open access: yesNature Communications
The elucidation of the energy dissipation process is crucial for understanding various phenomena occurring in nature. Yet, the vibrational relaxation and its timescale at the water interface, where the hydrogen-bonding network is truncated, are not well ...
Woongmo Sung   +3 more
doaj   +1 more source

Combined information from Raman spectroscopy and optical coherence tomography for enhanced diagnostic accuracy in tissue discrimination

open access: yes, 2014
We thank the UK EPSRC for funding, the CR-UK/EPSRC/MRC/DoH (England) imaging programme, the European Union project FAMOS (FP7 ICT, contract no. 317744) and the European Union project IIIOS (FP7/2007-2013, contract no. 238802).
C. Simon Herrington   +11 more
core   +1 more source

Plasma Spectroscopy

open access: yesFusion Science and Technology, 2010
A brief introduction into the spectroscopy of fusion plasmas is presented. Basic principles of the emission of ionic, atomic and molecular radiation is explained and a survey of the effects, which lead to the population of the respective excited levels, is given. Line radiation, continuum radiation, opacity and line broadening mechanisms are addressed.
openaire   +4 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Measurement of the parameters of non-stationary gas flows by diode laser absorption spectroscopy in case of high temperature and high pressure

open access: yesEPJ Web of Conferences, 2017
Experimental version of diode laser absorption spectrometer (DLAS) for contactless measurements of temperature and water vapor concentration in supersonic gas flows is developed. The spectrometer can be used for the measurements of temperature up to 2500
Bolshov M.A.   +5 more
doaj   +1 more source

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