Simultaneous patch-clamp and photometric fluorescence ratio measurements of optical probes for ions using a computer-based data acquisition system, PhoCal

B. Somasundaram, J. Hoyland, John Dempster, J. Riley, W.T. Mason

Research output: Contribution to journalConference Contribution

Abstract

This demonstration will present a new computer program and analytical system - PhoCal - which permits the simultaneous measurement of (a) low light levels of fluorescence from optical probes for ions and (b) up to two channels of physiological data which can include patch-clamp current and voltage, or voltage from other probes such as extracellular pH electrodes or other transducers and (c) an event marker channel. The system is PC-based and uses high speed analogto-digital circuitry operating in parallel with a two-channel photon counter which collects data from one or two photomultiplier tubes. All data is logged
directly to hard disk and the system can operate at speeds in excess of an aggregate of 1000 samples per second.
LanguageEnglish
PagesP63-P63
Number of pages1
JournalJournal of Physiology
Volume446
Issue numberSuppl.
Publication statusPublished - 1992
EventThe Physiological Society Cambridge Meeting 1991 - Cambridge, United Kingdom
Duration: 18 Jul 199120 Jul 1991

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Transducers
Photons
Information Systems
Electrodes
Software
Fluorescence
Ions
Light

Keywords

  • patch clamp
  • photometric fluorescence
  • PhoCal

Cite this

Somasundaram, B. ; Hoyland, J. ; Dempster, John ; Riley, J. ; Mason, W.T. / Simultaneous patch-clamp and photometric fluorescence ratio measurements of optical probes for ions using a computer-based data acquisition system, PhoCal. In: Journal of Physiology. 1992 ; Vol. 446, No. Suppl. pp. P63-P63.
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Simultaneous patch-clamp and photometric fluorescence ratio measurements of optical probes for ions using a computer-based data acquisition system, PhoCal. / Somasundaram, B.; Hoyland, J.; Dempster, John; Riley, J.; Mason, W.T.

In: Journal of Physiology, Vol. 446, No. Suppl., 1992, p. P63-P63.

Research output: Contribution to journalConference Contribution

TY - JOUR

T1 - Simultaneous patch-clamp and photometric fluorescence ratio measurements of optical probes for ions using a computer-based data acquisition system, PhoCal

AU - Somasundaram, B.

AU - Hoyland, J.

AU - Dempster, John

AU - Riley, J.

AU - Mason, W.T.

PY - 1992

Y1 - 1992

N2 - This demonstration will present a new computer program and analytical system - PhoCal - which permits the simultaneous measurement of (a) low light levels of fluorescence from optical probes for ions and (b) up to two channels of physiological data which can include patch-clamp current and voltage, or voltage from other probes such as extracellular pH electrodes or other transducers and (c) an event marker channel. The system is PC-based and uses high speed analogto-digital circuitry operating in parallel with a two-channel photon counter which collects data from one or two photomultiplier tubes. All data is logged directly to hard disk and the system can operate at speeds in excess of an aggregate of 1000 samples per second.

AB - This demonstration will present a new computer program and analytical system - PhoCal - which permits the simultaneous measurement of (a) low light levels of fluorescence from optical probes for ions and (b) up to two channels of physiological data which can include patch-clamp current and voltage, or voltage from other probes such as extracellular pH electrodes or other transducers and (c) an event marker channel. The system is PC-based and uses high speed analogto-digital circuitry operating in parallel with a two-channel photon counter which collects data from one or two photomultiplier tubes. All data is logged directly to hard disk and the system can operate at speeds in excess of an aggregate of 1000 samples per second.

KW - patch clamp

KW - photometric fluorescence

KW - PhoCal

UR - http://jp.physoc.org/content/446/1/59P.full.pdf+html

M3 - Conference Contribution

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SP - P63-P63

JO - Journal of Physiology

T2 - Journal of Physiology

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