Definition of micropipette in US English:


(also micropipet)


  • A very fine pipette for measuring, transferring, or injecting very small quantities of liquid.

    • ‘From the concentrated algal suspension, nearly 300 individual cells were isolated in the laboratory within six hours of capture, using micropipettes and a binocular microscope.’
    • ‘The intact nuclei were incubated for 15 min after which they were gently pierced with two fire-polished glass micropipettes.’
    • ‘The oocytes were mechanically released from large antral follicles and freed of cumulus cells by gently pipetting through a mouth-operated micropipette.’
    • ‘For intracellular measurements the probe is commonly a glass micropipette that has been back-filled with a salt-solution and has a tip diameter suitable for insertion into a plant cell.’
    • ‘Two micropipettes were positioned in a dual entry chamber mounted on the microscope stage.’
    • ‘By averaging the experimental results over 12 cells, a representative curve relating the membrane extension into the micropipette and the applied suction pressure was generated.’
    • ‘In a third method the interaction between two large vesicles formed at the end of micropipettes and imaged by a light microscope is determined.’
    • ‘One describes cells as having a solid cortex and viscous liquid core and has been used to model the aspiration of cells with no or little cytoskeleton (such as red blood cells or unattached leukocytes) into micropipettes.’
    • ‘The elastic moduli K and A of the membrane have been measured by various techniques, among which the micropipette is the most commonly used.’
    • ‘Literature data about the critical value of the relative area increase vary between 3% and 5%, both measured with micropipettes.’
    • ‘Glass micropipettes of desired diameters were prepared with a vertical pipette puller and a microforge as described elsewhere.’
    • ‘Identified neurons were excited or inhibited when these amino acids were squirted onto them from very fine micropipettes.’
    • ‘The deflection of the micropipette was measured and translated into force.’
    • ‘In previous experiments probing stress relaxation, red cells or resealed ghosts were aspirated into micropipettes.’
    • ‘Our device permits a more convenient control of both parameters than optical tweezers or micropipettes.’
    • ‘Specially prepared micropipettes are then used to aspirate sperm from these tubules.’
    • ‘When aspirated into the micropipette, these GUVs behaved as liquids with no surface shear rigidity.’
    • ‘Though the expression incorporated the separate effects of driving pressure and minimum capillary radius on neutrophil transit time, it was based on studies using blunt-ended micropipettes.’
    • ‘Automatic dispensing pipettes and micropipettes are also available commercially.’
    • ‘Mechanical stimulation of both cultivars by probing with blunt micropipettes without penetrating the epidermal cells resulted in regular depolarizations each time the root was probed.’