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In this work, the terahertz (THz) absorption spectra of a typical protein BSA (Bovine Serum Albumin) in aqueous solution were measured under different concentrations. The temporal changes in the absorption spectra were analyzed using the two-dimensional correlation spectroscopy (2DCOS). By comparing the cross peaks corresponding to the concentration changes, it can be obtained that the hydration process...
The terahertz (THz) absorption spectra of organic compounds were measured by THz time-domain spectroscopy (TDS) during 100–300 K The temporal changes in the absorption spectra with different temperatures were analyzed using the two-dimensional correlation spectroscopy (2DCOS) technology. By comparing the cross peaks corresponding to the intermolecular vibrational modes, we concluded that the high-frequency...
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