Excitation at 280 nm leads to tyrosine and tryptophan fluorescence; the resulting spectra might then contain contributions from both types of residues. If a molecule of interest is non-fluorescent ...

While tryptophan is the favored probe for studies ... and time-resolved fluorescence spectroscopy has become an increasingly important method in studying DNA and DNA-protein complexes.

Fluorescence spectroscopy can become an alternative ... with muscle tissue coincides with the spectrum of amino acid tryptophan it contains. The authors selected features that enabled them ...

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Early published uses of EEM spectroscopy were in the 1980s. EEM was used by Koller in 1986 to study tryptophan fluorescence within low density lipoproteins found within human blood serums; as well as ...

The result is a decrease in tryptophan's fluorescence emission ... called "ultrafast UV two-dimensional spectroscopy." The study confirmed that electron transfer indeed takes place between ...

and its fluorescence behavior varies depending on its microenvironment and structure," said Des Smith of Edinburgh Instruments. "When a tryptophan side chain is located in a non-polar microenvironment ...

Achieving the ultimate sensitivity of UV-FCS down to the single tryptophan regime has wide applications for various communities from nanophotonics to biochemistry. We conclusively demonstrate ...