2014/11/09 by Claudio Colleoni, C. Colleoni, S. Esposito +13 · 10 citations
Biochemistry, Genetics and Molecular Biology · Chemistry · Medicine · Physics and Astronomy · #Aqueous solution #Biofield Effects and Biophysics #Chemical and Physical Studies #Chemical physics #Chemistry #Hydrogen #Luminescence #Materials science #Nanotechnology #Optoelectronics #Organic chemistry #Photochemistry and Electron Transfer Studies #Physical chemistry #cond-mat.soft #physics.chem-ph
paper · pdf · doi:10.1039/c5cp03420e
published in Physical Chemistry Chemical Physics 18(2), 772-780 (Royal Society of Chemistry) · 15 pages, 8 figures, 1 table
arxiv created 2014/11/09 · openalex publication_date 2015/11/19 · arxiv updated 2016/01/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Many recent studies on water have conjectured a complex structure composed of hydrogen bonded low- and high-density domains. In this work the structure of pure water and aqueous solutions of silica gel (TEOS) has been investigated by using delayed luminescence, which has previously shown a significant increase in aqueous salt solutions where low-density domain formation is expected. Photon emission shows an Arrhenius trend with an activation energy in water-TEOS solutions larger than in pure water and salt-water solutions. Moreover, delayed photon emission decay shows an intrinsic lifetime of about 5 μs both in solutions and in pure water that, along with secondary lifetimes induced by the presence of TEOS, could be related to the formation of different domains.