A new nano-enhanced technology proposed to quantify intracellular detection of radiation induced metabolic processes

Henryk Malak, Robert Richmond, John F Dicello

Research output: Contribution to journalArticle

Abstract

A new approach to intracellular detection and imaging of metabolic processes and pathways is presented that uses surface plasmon resonance to enhance interactions between photon-absorbing metabolites and metal nanoparticles in contact with cells in vitro or in vivo. Photon absorption in the nanoparticles creates plasmon fields, enhancing intrinsic metabolite fluorescence, thereby increasing absorption and emission rates, creating new spectral emission bands, shortening fluorescence lifetimes, becoming more photo-stable and increasing fluorescent resonance energy transfer efficiency. Because the cells remain viable, it is proposed that the method may be used to interrogate cells prior to and after irradiation, with the potential for automated analyses of intracellular interactive pathways associated with radiation exposures at lower doses than existing technologies. The design and concepts of the instrument are presented along with data for unexposed cells.

Original languageEnglish (US)
Article numberncq523
Pages (from-to)301-304
Number of pages4
JournalRadiation Protection Dosimetry
Volume143
Issue number2-4
DOIs
StatePublished - Feb 2011
Externally publishedYes

Fingerprint

Radiation
Technology
metabolites
radiation
cells
Photons
Fluorescence
Metal Nanoparticles
fluorescence
nanoparticles
spectral emission
Surface Plasmon Resonance
Energy Transfer
radiation dosage
photons
Metabolic Networks and Pathways
surface plasmon resonance
Nanoparticles
energy transfer
life (durability)

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology
  • Radiation
  • Public Health, Environmental and Occupational Health

Cite this

A new nano-enhanced technology proposed to quantify intracellular detection of radiation induced metabolic processes. / Malak, Henryk; Richmond, Robert; Dicello, John F.

In: Radiation Protection Dosimetry, Vol. 143, No. 2-4, ncq523, 02.2011, p. 301-304.

Research output: Contribution to journalArticle

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