The use of a conventional streak camera for subnanosecond timeresolved fluorimetry is extended to the single-photon counting regime by utilizing intensified readout of the phosphor. The system achieves the usual k e y advantages of photon counting, namely single-photon sensitivity, large dynamic range and shot noise limited statistics, but also permits measurements of lower repetition rate and ...

Development of sensitive enzymatic methods for hydrogen peroxide is key for the quantification of several bioconstituents such as glucose, triglycerides, creatinine, and uric acid and so on. Hydrogen peroxide released by the oxidase enzymes are quantified by peroxidase enzyme involving spectrophotometry, fluorimetry, chemiluminisence, potentiometric sensing, amperometric, coulometric and such o...

Differential scanning fluorimetry (DSF) is used to assess protein stability, transition states, or the Kd values of various ligands, drug molecules, and antibodies. All fluorescent probes published to date either are incompatible with hydrophobic proteins/ligands, precluding analyses of transmembrane or membrane-associated proteins, or have excitation and detection wavelengths outside the range...

All living organisms are surrounded by natural and artificial origin electromagnetic radiation (EMR), which affects organisms. The sources number is increasing, but the EMR influence mechanisms on have not yet been fully investigated, despite large of studies. However, understanding action can give impetus to development various biotechnologies. To solve problem effects develop new biotechnolog...