PiezoDüse

PiezoDüse, also known as a piezoelectric injector or piezo injector, is a device used in various applications, particularly in the fields of medicine, biology, and material science. It operates on the principle of piezoelectricity, where an electric field is applied to a piezoelectric material, causing it to deform and generate a mechanical force. This deformation is used to precisely control the ejection of liquids or particles.

The PiezoDüse typically consists of a piezoelectric element, such as a ceramic or crystal, which is sandwiched between two electrodes. When a voltage is applied, the piezoelectric element expands or contracts, creating a mechanical movement. This movement is transferred to a nozzle or tip, which then dispenses the desired substance.

One of the primary advantages of the PiezoDüse is its high precision and repeatability. It can deliver extremely small volumes of liquid, down to the picoliter range, with high accuracy. This makes it ideal for applications such as cell injection, where precise control over the volume and location of the injected material is crucial.

In medical research, PiezoDüsen are used for microinjection of cells, such as stem cells, into specific tissues or organs. In biology, they are employed for the precise delivery of reagents or samples into microscopic environments, such as individual cells or small volumes of liquid. In material science, PiezoDüsen are used for the deposition of thin films or the assembly of nanostructures.

Despite its advantages, the PiezoDüse also has some limitations. The piezoelectric effect is relatively weak, which can limit the force and volume of the dispensed substance. Additionally, the device requires a high-voltage power supply, which can be a disadvantage in portable or battery-operated applications. However, ongoing research and development are continually improving the performance and versatility of PiezoDüsen.