Temperature-jump QCL spectroscopy of peptide dynamics: expanding spectral accessibility by dual-combs

Abstract

Combining infrared dual-comb spectroscopy with laser-induced nanosecond temperature-jumps enables fast tracking of peptide folding dynamics. Compared to single-wavenumber quantum cascade lasers, this method provides broader spectral information. Using a model peptide system, the study opens new perspectives for applying time-resolved IR spectroscopy to explore mechanistic details in biomolecular dynamics.