If sounds seem increasingly muffled, if the outside world is getting quieter by the day, and if conversations become difficult to follow, especially when there is a lot of background noise, these are likely the initial stages of hearing loss. If left untreated, these early signs of hearing loss can lead to becoming completely deaf. Cochlear implants offer hope to people with severe hearing loss and deaf people to take a more active role in everyday life and access the world of sound. Current research efforts are focused on making progress in the field of technically assisted auditory perception with the aid of cochlear implants, which should enable improved speech intelligibility while at the same time ensuring a high level of patient comfort. The polymer Parylene, the innovative key component of these developments, is a real all-rounder, providing virtually invisible protection for the necessary electronics. At Fraunhofer ENAS, researchers such as Franz Selbmann are working on using this wafer-thin polymer to shield sensitive electronics for medical engineering and industry from external influences. In this interview, the scientist explains what makes Parylene unique and the potential applications of this advanced material, for instance for new generations of medical implants.
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