Temperature control of a microspectrophotometer system for monitoring the redox reactions of respiratory pigments in small volumes

  • K. Y. Kavanagh
  • , J. E. Walsh
  • , J. Murphy
  • , M. Harmey
  • , M. A. Farrell
  • , O. Hardimann
  • , R. Perryman

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

We report the development of a microspectrophotometer system for use on micro samples of mitochondrial respiratory pigments. A novel optical fibre set-up uses visible spectrophotometry to monitor the reduction of mitochondrial electron carriers. Data is presented for the reduction of cytochrome-c and for the effect of temperature on the levels of complex II/III activity from the mitochondria of rat liver. This in-vivo simulation of the reduction of cytochrome-c can be observed using a fibre optic probe which requires less than twenty μl of sample for analysis. The key features of the, system are; front end adaptability, high sensitivity and fast multispectral acquisition which are essential for the biological reactions which are observed.

Original languageEnglish
Pages (from-to)258-265
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3253
DOIs
Publication statusPublished - 1998
Externally publishedYes
EventBiomedical Sensing and Imaging Technologies - San Jose, CA, United States
Duration: 26 Jan 199827 Jan 1998

Keywords

  • Cytochrome-c
  • Dip-probe
  • Fibre optics
  • Microspectrophotometry
  • Mitochondrial myopathies
  • Redox electron carriers
  • Temperature control

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