Scanning acoustic Doppler microscopy and scanning acoustic correlation microscopy.

Acoustic microscopy with vector contrast at 100 MHz in a fluid with immersed particles is used to detect the flow profile in front of a microscopic orifice. The velocity profile concerning the component in axial direction of the focused beam is derived from the phase contrast. Possibilities to resolve the flow profile also for the components in normal direction with respect to the axis are demonstrated.

The measurement and numerical modelling of the diffraction field of a spherical ultrasonic transducer working in the air at the frequency of 1.3 MHz.

This paper presents the results of measurements of the acoustic diffractive field in the focal area of a spherical ultrasonic transducer working in air at a frequency of 1.3 MHz. The measurements show some differences when compared to the theoretical distribution.

Asymmetric reconstitution of the erythrocyte anion transport system in vesicles of different curvature: implications for the shape of the band 3 protein.

The anion transport protein of the human erythrocyte membrane, band 3, was solubilized and purified in solutions of the non-ionic detergent nonaethylene glycol lauryl ether and then reconstituted in spherical egg phosphatidylcholine bilayers as described earlier (U. Scheuring, K. Kollewe, W.

Reconstitution of the erythrocyte anion transport system: recent progress.

The anion transport system of the human erythrocyte membrane was reconstituted in phosphatidylcholine vesicles by a new procedure. The reconstituted system shows all major properties of the sulfate transport system found in the erythrocyte membrane (Scheuring, U., K.