Vorrichtung und Verfahren zum Nachweis von Partikeln, insbesondere Mikropartikeln, Biopartikeln, Einzelzellen oder Zellclustern

Details

Veröffentlichungs-Nr.

EP4749278

Anmeldetag

26. November 2024

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

Abstract

The disclosure relates to a device and a corresponding method for detecting particles, in particular microparticles, bioparticles, single cells or cell clusters, contained in a liquid. The device comprising an irradiation device configured to irradiate a volume of the liquid with time-varying, in particular pulsed or modulated, electromagnetic radiation, and at least one focused interdigital transducer (fIDT) configured to detect surface acoustic waves emanating from particles contained in the liquid in response to irradiating the volume of the liquid with the electromagnetic radiation, wherein the at least one focused interdigital transducer has a focal point or focal area and is preferably arranged such that the focal point or focal area of the focused interdigital transducer is located at or close to the irradiated volume of the liquid containing the particles. The disclosure allows for a sensitive detection of opto-acoustic waves emanating from particles contained in the liquid with a spatial resolution or spatial selectivity in the order of the particle diameter, and further enables a reproducible, precise, miniaturized and/or parallelized design of the device.

Anmelder

Firmen

Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt (GmbH)
Leibniz-Institut für Festkörper- und Werk stoffforschung Dresden e.V. (IFW Dresden e.V.)

Land

🇩🇪 Deutschland