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Updated: Jun 5, 2026

Encapsulating Cytochrome c in Silica Aerogel Nanoarchitectures without Metal Nanoparticles while Retaining Gas-phase Bioactivity
Published on: March 1, 2016
IR spectroscopy of water vapor confined in nanoporous silica aerogel
Yu N Ponomarev1, T M Petrova, A M Solodov
1Zuev Institute of Atmospheric Optics, Siberian Branch of Russian Academy of Sciences, 1 Academician Zuev av, Tomsk 634021, Russia.
Abstract:
The absorption spectrum of the water vapor, confined in the nanoporous silica aerogel, was measured within 5000-5600 cm(-1) with the IFS 125 HR Fourier spectrometer. It has been shown, that tight confinement of the molecules by the nanoporous size leads to the strong lines broadening and shift. For water vapor lines, the HWHM of confined molecules are on the average 23 times larger than those for free molecules. The shift values are in the range from -0.03 cm(-1) to 0.09 cm(-1). Some spectral lines have negative shift. The data on the half-widths and center shifts for some strongest H(2)O lines have been presented.
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