University of Twente Student Theses

Login

Transparent transducer for photoacoustic imaging: Making a 2x2 array using PVDF coated with ITO

Plakke, A.L. (2022) Transparent transducer for photoacoustic imaging: Making a 2x2 array using PVDF coated with ITO.

[img] PDF
13MB
Abstract:Circulating Tumor Cells (CTC) are cells that come from a tumor, but are migrating though the body via the bloodstream. In this way, the cancer is spread further through the body. To make this migrating CTC’s visible in the skins blood vessels, photoacoustic imaging (PAI) can be used. Therefore a transparent transducer array is needed, in this case the light can be sent through the transducer and the sound wave could be detected at the same location. Further on, a large area could be imaged when using an array configuration. Currently all commercially available transducers use opaque piezoelectric material. In this work, a transparent ultrasound transducer 2x2 array is developed using transparent polyvinylidene fluoride (PVDF) piezoelectric material with a coating of tin oxide (ITO). A protocol is made for selectively removing ITO and the process of making the transducer is described. There are four active regions on the transducer that are tested in an experimental setup. The active regions could be measured separately, and the active region where the acoustic waves are sent on could be distinguished from the other regions. Further research should be done to develop a more accurate data processing method for determining the location of the CTC’s. Further on, a way of measuring all regions at the same time should be developed.
Item Type:Essay (Bachelor)
Faculty:TNW: Science and Technology
Subject:50 technical science in general
Programme:Biomedical Technology BSc (56226)
Link to this item:https://purl.utwente.nl/essays/92092
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page