A5045452482- Spectroscopy and Chemometric Analyses
- Analytical Chemistry and Chromatography
- Water Quality Monitoring and Analysis
- Spectroscopy Techniques in Biomedical and Chemical Research
- Advanced Chemical Sensor Technologies
- Fault Detection and Control Systems
- Electrochemical sensors and biosensors
- Pesticide Residue Analysis and Safety
- Spectroscopy and Laser Applications
- Spectroscopy and Quantum Chemical Studies
- Analytical Chemistry and Sensors
- Biosensors and Analytical Detection
- Metabolomics and Mass Spectrometry Studies
- Luminescence Properties of Advanced Materials
- Antibiotics Pharmacokinetics and Efficacy
- Food Chemistry and Fat Analysis
- Atmospheric Ozone and Climate
- Microfluidic and Capillary Electrophoresis Applications
- Meat and Animal Product Quality
- Viral Infectious Diseases and Gene Expression in Insects
- Radiation Detection and Scintillator Technologies
- Phase-change materials and chalcogenides
- Biopolymer Synthesis and Applications
- Neural Networks and Applications
- Pesticide and Herbicide Environmental Studies
Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2025
National University of the Littoral
2015-2025
Centro Científico Tecnológico - San Juan
2021-2024
Universidad de Extremadura
2023-2024
University of Buenos Aires
2018-2019
Fundación Ciencias Exactas y Naturales
2018-2019
TU Wien
2015-2017
In this work, we report mid-IR transmission measurements of the protein amide I band in aqueous solution at large optical paths. A tunable external-cavity quantum cascade laser (EC-QCL) operated pulsed mode room temperature allowed one to apply a path length up 38 μm, which is four times larger than that applicable with conventional FT-IR spectrometers. To minimize temperature-induced variations caused by background absorption ν2-vibration water (HOH-bending) overlapping region, highly...
Fourier transform infrared (FTIR) and circular dichroism (CD) spectroscopy are analytical techniques employed for the analysis of protein secondary structure. The use CD is limited to low concentrations (<2 mg ml(-1)), while FTIR commonly used in a higher concentration range (>5 ml(-1)). Here we introduce quantum cascade laser (QCL)-based IR transmission setup polypeptide structure at as 0.25 ml(-1) deuterated buffer solution. We present dynamic QCL-IR spectra temperature-induced α-helix...
In this work, a novel EC-QCL-based setup for mid-IR transmission measurements in the amide I region is introduced monitoring dynamic changes secondary structure of proteins. For purpose, α-chymotrypsin (aCT) acts as model protein, which gradually forms intermolecular β-sheet aggregates after adopting non-native α-helical induced by exposure to 50 % TFE. order showcase versatility presented setup, effects varying pH values and protein concentration on rate β-aggregation were studied. The...
The high demand, cost, and low regulations surrounding high-quality edible oils (HQEO) make them a target for fraudulent actions, particularly adulteration with refined oils. Consequently, the authentication of this kind oil is great interest. This work assessed degree five HQEOs: sesame, flaxseed, chia, rapeseed, extra virgin olive oils, using different chemometric strategies to enhance detection capability analytical methodology. Refined used as adulterants were evaluated at concentrations...