FTIR-ATR evaluation of organic contaminant cleaning methods for SiO2 surfaces.

Evaluation of Pre-Fixed Biological Tissues Preparation Methods for ATR-FTIR Biospectroscopy

Evaluation of Pre-Fixed Biological Tissues Preparation Methods for ATR-FTIR Biospectroscopy Fourier transform infrared (FTIR) spectroscopy in ATR (attenuated total reflection) mode is a powerful tool for studying biomedical samples, which can provide important structural information on the molecular composition. Currently, formalin fixation and paraffin preservation (FFPP) is the preferred sourc...

Fabrication of MgF2-SiO2 Nanocomposite Thin Films and Investigation of Their Optical and Hydrophobic Properties

In this research, MgF2-2%SiO2/MgF2 thin films were applied on a glass substrate. At first, MgF2 thin films with the optical thickness were deposited on the glass slide substrates. Then, MgF2-2%SiO2 thin films were deposited on the glass coated with MgF2 thin films. Finally, the nanocomposite thin films were surface treated by the PFTS solution. Characterization of the thin film was done by X-Ra...

Quantitative CD ATR-FTIR and CD SEM-EDX analyses of locally amino-functionalized polymer surfaces

Elucidation of functional groups on gram-positive and gram-negative bacterial surfaces using infrared spectroscopy.

Surface functional group chemistry of intact Gram-positive and Gram-negative bacterial cells and their isolated cell walls was examined as a function of pH, growth phase, and growth media (for intact cells only) using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy. Infrared spectra of aqueous model organic molecules, representatives of the common functional grou...

Correlating Cleaning Thoroughness with Effectiveness and Briefly Intervening to Affect Cleaning Outcomes: How Clean Is Cleaned?

OBJECTIVES The most efficient approach to monitoring and improving cleaning outcomes remains unresolved. We sought to extend the findings of a previous study by determining whether cleaning thoroughness (dye removal) correlates with cleaning efficacy (absence of molecular or cultivable biomaterial) and whether one brief educational intervention improves cleaning outcomes. DESIGN Before-after ...