title: Parallel β-sheet vibration band increases with proteins dipole moment under exposure to 1765 MHz microwaves.
abstract: Effects of exposure of 4 h to mobile phones microwaves at 1765 MHz at a power density around 940 mW/m(2) on four typical proteins (hemoglobin in H2 O solution, and myoglobin, bovine serum albumin, and lysozyme in D2 O solution) were studied by means of Fourier Transform Infrared spectroscopy and Fourier self-deconvolution analysis. Increase in intensity of parallel β-sheet component around 1635 cm(-1) was observed after exposure of hemoglobin, myoglobin, and bovine serum albumin, showing that a mechanism of unfolding occurred after exposure, whereas no appreciable change in the amide I region occurred after lysozyme exposure. In addition, a relationship between protein dipole moment and protein unfolding rate was demonstrated with a correlation coefficient r = 0.973 and 95% confidence interval.
authors.affiliation: Department of Physics and Earth Sciences, University of Messina, Messina, Italy.
authors.forename: Emanuele
authors.initials: E
authors.lastname: Calabrò
authors.affiliation: Department of Physics and Earth Sciences, University of Messina, Messina, Italy.
authors.forename: Salvatore
authors.initials: S
authors.lastname: Magazù
mesh_terms: D000293:Adolescent; D000328:Adult; D000818:Animals; D002417:Cattle; D017666:Deuterium Oxide / Q000737:chemistry; D006801:Humans; D008872:Microwaves; D017433:Protein Structure, Secondary / Q000528:radiation effects; D011506:Proteins / Q000737:chemistry*; D014732:Vibration; D055815:Young Adult
chemical_list: D011506:Proteins; D017666:Deuterium Oxide
keywords: dipole moment; microwaves; parallel β-sheet; proteins; unfolding