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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