Laser-diffraction slit rheometer to measure red blood cell deformability

S. Shin, Y. H. Ku, M. S. Park, S. Y. Moon, J. H. Jang, J. S. Suh

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


The red blood cell (RBC) deformability was measured using laser-diffraction slit rheometer. The instrument consisted of a lase diode, step motor, a thermostated bob-cup measuring system, and a video camera attached to a microcomputer. The flow-rate and pressure drop measurements that were required for the operation of a slit rheometer were replaced with a single measurement of pressure variation with time. It was observed that elongation index as a measure of RBC deformability which was calculated from an isointensity curve in the diffraction pattern using an ellipse fitting program.

Original languageEnglish
Pages (from-to)559-561
Number of pages3
JournalReview of Scientific Instruments
Issue number2
Publication statusPublished - 2004 Feb
Externally publishedYes

ASJC Scopus subject areas

  • Instrumentation


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