Paris-based company DBV-Technologies (http://www.dbv-technologies.com/en/) is a leading name in the allergy treatment and diagnosis research and development field. Its main focus is on the Viaskin patch. A key component of the production of this adhesive patch is an electrospray which sprays an electrically charged stream of minute droplets onto a conductive titanium backing.
This ensures that the droplets (which contain antigens) do not lose their chemical properties and are also evenly spread over the patch. With hopes that this solution will be rolled out commercially, DBV-Technologies has been busy developing new machinery which will enable it to massively increase the number of patches it can manufacture. You can see more about their patch industrial machine production program here. The end result of all this is shown in the photograph below – a small patch which aims to treat three different kinds of allergies – peanut, cow’s milk protein and egg. This kind of approach is particularly suited to working with young children, who naturally enough are frightened of injections and difficult to treat using other more old-fashioned techniques.