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Picoliter Dispenser​

Theta Knowledge base

– Attension, Biolin –

Standard Test Method for Interfacial Tension of Oil Against Water by the Ring Method

This application note describes the measurement of interfacial tension between oil and water under non- equilibrium conditions by using the ring method according to the ASTM standard.

– Attension –

Contact angle – What is it and how do you measure it?

Contact angle, θ (theta), is a quantitative measure of wetting of a solid by a liquid. The behavior of single drop on a surface tells you a lot about the…

Attension® Theta Optical Tensiometers

Attension® Picoliter Dispenser

Product Overview

The Picoliter Dispenser is based on piezo-driven inkjet printing technology, and can dispense droplets as small as 20 picoliters. With a volume this small, a drop diameter of less than 100 µm is possible, depending on the contact angle formed.

Module Features:

The Theta Pico leverages the Attension Theta Flow‘s hallmark automation capabilities to remove user-dependent variation in contact angle measurements, enabling each experiment to be repeated with a high level of precision.

  • Can be used to measure the contact angle even on the smallest surfaces of less than 100 µm.
  • can create droplets as small as 20 pl.

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Module Compatibility

Compatible Theta Models

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