Infrared (IR) spectroscopy is a highly sensitive technique that provides complete information
on chemical compositions. The IR spectra of proteins or peptides give rise to nine …

Infrared spectroscopy in the 3–20 μm spectral window has evolved from a routine laboratory
technique into a state-of-the-art spectroscopy and sensing tool by benefitting from recent …

Quantum cascade lasers (QCL) are the first room temperature semiconductor laser source
for the mid-IR spectral region, triggering substantial development for the advancement of …

A dynamic development of methodologies of analytical flow injection measurements during
four decades since their invention has reinforced the solid position of flow analysis in the …

We report a mid-IR transmission setup for the analysis of the protein amide I and amide II
band in aqueous solutions that achieves a limit of detection as low as 0.0025 mg mL–1 …

Mid-infrared (MIR) spectroscopy investigates the interaction of MIR photons with both
organic and inorganic molecules via the excitation of vibrational and rotational modes …

Optical chemical imaging seeks to nondestructively acquire spatially resolved chemical
information without the use of labels or probes. The combination of vibrational mid-infrared …

In this work, we present a setup for mid-IR measurements of the protein amide I and amide II
bands in aqueous solution. Employing a latest generation external cavity-quantum cascade …

Mid-infrared chemical sensors based on quantum cascade technology offer a number of
properties surpassing conventional spectrometric techniques. In this work, we combine a …

In this study, an external cavity-quantum cascade laser-based mid-infrared (IR) spectrometer
was applied for in-line monitoring of proteins from preparative ion-exchange …