Development of hemorheology: perspective in instrumentation development

Area of Science:

• Biomedical Engineering
• Microcirculation Research
• Rheology

Background:

• Hemodynamics and microcirculation are critical for tissue perfusion.
• Understanding blood rheology is essential for diagnosing and treating circulatory disorders.
• Previous limitations in instrumentation hindered detailed microcirculatory and cellular analysis.

Purpose of the Study:

• To develop and apply advanced instrumentation for hemorheological and microcirculatory studies.
• To elucidate the determinants of blood suspension viscosity and its role in microcirculatory flow.
• To investigate cellular structure and function at the molecular level within living systems.

Main Methods:

• Development of new viscometers and improved intravital microscopes for hemorheological studies.
• Application of fluorescence microscopy and digitized video microscopy for single-cell analysis.
• Utilizing laser confocal microscopy for three- and four-dimensional image construction.

Main Results:

• Identified four major determinants of blood suspension viscosity.
• Clarified the relationship between blood viscosity and microcirculatory flow dynamics.
• Enabled detailed investigation of living cell structure and function using advanced microscopy techniques.

Conclusions:

• Advanced instrumentation has significantly improved hemorheological and microcirculatory research capabilities.
• Understanding rheological properties at the molecular level is crucial for advancing biomedical science.
• Future integration of molecular biology and nanotechnology promises deeper insights into cellular and systemic rheology.