A Bayesian method for single molecule, fluorescence burst analysis

There is currently great interest in determining physical parameters, e.g. fluorescence lifetime, of individual molecules that inform on environmental conditions, whilst avoiding the artefacts of ensemble averaging. Protein interactions, molecular dynamics and sub-species can all be studied. In a bu...

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Detalles Bibliográficos
Autores principales: Barber, P. R., Ameer-Beg, S. M., Pathmananthan, S., Rowley, M., Coolen, A. C. C.
Formato: Texto
Lenguaje:English
Publicado: Optical Society of America 2010
Materias:
Optical Biophysics
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3018088/
https://www.ncbi.nlm.nih.gov/pubmed/21258537
http://dx.doi.org/10.1364/BOE.1.001148
Descripción
Sumario:There is currently great interest in determining physical parameters, e.g. fluorescence lifetime, of individual molecules that inform on environmental conditions, whilst avoiding the artefacts of ensemble averaging. Protein interactions, molecular dynamics and sub-species can all be studied. In a burst integrated fluorescence lifetime (BIFL) experiment, identification of fluorescent bursts from single molecules above background detection is a problem. This paper presents a Bayesian method for burst identification based on model selection and demonstrates the detection of bursts consisting of 10% signal amplitude. The method also estimates the fluorescence lifetime (and its error) from the burst data.

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