Advances in ultrafast time resolved fluorescence physics for cancer detection in optical biopsy
R. R. Alfano
AIP Advances · 2012
doi:10.1063/1.3697961 (opens in a new tab)
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Abstract
We discuss the use of time resolved fluorescence spectroscopy to extract fundamental kinetic information on molecular species in tissues. The temporal profiles reveal the lifetime and amplitudes associated with key active molecules distinguishing the local spectral environment of tissues. The femtosecond laser pulses at 310 nm excite the tissue. The emission profile at 340 nm from tryptophan is non-exponential due to the micro-environment. The slow and fast amplitudes and lifetimes of emission profiles reveal that cancer and normal states can be distinguished. Time resolved optical methods offer a new cancer diagnostic modality for the medical community.
Abstract licence: CC BY
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