Browsing College of Science by Subject "Lifetime"

Now showing items 1-4 of 4

    • Fluorescence lifetime based pH sensing using Resorufin 

      Ryder, Alan G.; Power, Sarah; Glynn, Thomas J. (2003)
      Accurate, non-contact pH sensing is of particular importance in the biological and clinical sciences. Fluorescence lifetime based pH sensing is potentially more useful than intensity based methods because of the reduced ...

    • Influence of chemical composition on the fluorescence lifetimes of crude petroleum oils 

      Ryder, Alan G.; Glynn, Thomas J.; Feely, Martin (Society of Photo-optical Instrumentation Engineers, 2003)
      Fluorescence based methods are increasingly being used for the analysis of crude oils because they offer high speed, low cost, non-contact, and non-destructive testing options. The fluorescence of crude oils is due to the ...

    • Investigating tryptophan quenching of fluorescein fluorescence under protolytic equilibrium 

      Ryder, Alan G.; Szczupak, Boguslaw; Togashi, Denisio M.; Calvet, Amandine; O'Loughlin, Muireann (2009)
      Fluorescein is one of most used fluorescent labels for characterizing biological systems, such as proteins, and is used in fluorescence microscopy. However, if fluorescein is to be used for quantitative measurements involving ...

    • Time-domain measurement of fluorescence lifetime variation with pH 

      Ryder, Alan G.; Morrison, John J.; Power, Sarah; Glynn, Thomas J. (Society of Photo-optical Instrumentation Engineers, 2001)
      Advances in the design and miniaturization of the lasers and electronics required for Time Correlated Single Photon Counting (TCSPC) measurement of fluorescence lifetime have simplified the use of the time domain method. ...