 Dr. DeSantis, hi, my name is Kasia. Welcome to our show, it's great to have you here. Thank you, it's a great show. Dr. DeSantis is a CEO of a company called Piezotec. They create a printable piezoelectric material. So what is that used for? Maybe first tell me a little about the company and then show some of the applications you develop. So we are a material supplier. We develop prototypes, products, inks, polymers, and we are associated with the research institute and other startup companies to develop devices and prototypes. So the polymers we develop are printable and electroactive. So it means our intent is to bring new functionality to print electronic. Electroactive means that they can convert mechanical energy into electrical energy, and reversely, electrical energy into mechanical energy, also thermal energy into electrical energy and electrical energy back into electrical energy. So the first application for that is for sensors. You can print sensors to pressure sensor, infrared sensor, ultrasonic sensor on larger area, smaller area, any design you want. The second application is for memories. In the deeps of the material there are dipoles that are switching when you apply electric field and one application is to use it to make printed memories. What about haptic? So we develop, we are the only company that has produced modified polymers, which is called relaxor terpolymer, and these polymers are the highest volumic electromechanical density of energy density. So this polymer, when you apply electric field, can move. And they can generate stress up to 20 megapascals, things like that. So we have customers that want to use it and partners that use it to make actuators. For actuators we are developing several applications. First, speakers. Yes. A sheet covered with a polymer. When you apply a voltage it vibrates and creates sounds. Second, what you mention is, this is an example of a speaker here. You only have a polymer that you printed on a layer. Yes. Polymer with transparency electrode. When you apply a voltage here, you will not hear it. You have to connect it. Yes. But you can believe me, it is a speaker. And here, the same thing, you print devices, you can print it on plastic, you can print it on paper, and you will have actuators. When you put electric field here, then you will have actuation of the small plastic layers here. So we have partnerships to develop haptic devices to make vibrate a surface. For example, we are collaborating with a company called Novacentes that want to integrate actuator in a wrist of wearables to create haptic feedback, touch feedback. We have collaboration also in project to make cerebral catechiers with this material to move. And also we have also collaboration with OEM to develop haptics on large surface, for example, for automotive dashboards. How transparent can this material be? Because I see this one is a little bit transparent. So the problem of transparency right now is not because of whole product, but because of the electrodes. Transparent conductors. Yes. Here it's a PDOT electrode and you know that PDOT. So we are waiting for graphene, commercially available graphene or silver nanowire to have at the same time flexibility, easy printable process and transparency. But the issue is not of polymers. Is it possible to combine using this technology two functionalities touch sensing and haptic feedback in a transparent touch screen device? So frankly speaking, yes, it's possible. You can put a layer of piezo thing and layer of optic. But one issue is that in order to have low voltage, you have to have seen layers. In order to have high energy, you have to have multiple layers. Yes. So we demonstrated with our partners that you can print easily multiple layers, up to 40 layers. I will show it after that, after that, up to 40 layers. But the issue when you make multiple layers is that you have many interfaces and every interfaces will induce some reflection. So you will lose somewhere some transparency. So right now, if you need very strong effect and low voltage, transparency will be difficult to obtain. But there is some application where you can put it behind a flexible touch screen. Can you sense force, not just touch, but force? So you can, in theory, you might be able to combine force sensing, haptic feedback, tight sensing, whatever. And even with, for example, infrared or electronic, you can also have some kind of form recognition. Yes. But I'm a material supplier. Yes. So I dream about what people can do with my product. Yes. We try to show what is possible in the end of the people that will use this product. Excellent. Dr. Stapley, thank you very much. Welcome. Thank you for your organization here. How has the show been for you so far? Very nice. I'll be there next year. Excellent. Thank you. Thank you.