 So, thank you, Liana, for the nice introduction, thanks to all who are coming to see me here. And in the next few minutes I would like to talk about what we are doing in our Technical University in Munich, where I am working right now, is a group of supramolecular chemistry under the supervision of Professor von Cobb. So, I would like to answer you in the coming minutes these three questions. What is supramolecular chemistry? How does nature use it to create complex and functional structures? And finally, how does supramolecular chemistry could benefit from it? So, supramolecular chemistry is a relatively new topic in chemistry. It was just defined in 1969 by John Marilla as the chemistry beyond the molecule. And even though being like a quite relative new chemistry, the topic has been already awarded two times with a Nobel Prize in Chemistry. The first time was in 1987, until the one which was recently in 2016. But coming back to this beyond the molecule, what does that actually mean? To know or to understand what beyond the miracle means, we need to know a little bit about molecular interactions. So, just I will show you here the word molecule, one of the simplest molecules that everybody knows. And this molecule is made out of oxygen and hydrogen atoms. So, these two atoms are connected by covalent bonds. And which means this for us? Covalent bonds means that these two atoms are actually sharing electrons on the outer shell. And this electron sharing makes this bond extremely, extremely powerful. So, for our purposes, I will just consider these covalent bonds non-reversible. But these are not the only interactions who sustain together the water as we know water. So, water actually is made out of a network of water molecules. And these water molecules are also interacting each other through other kinds of interactions. Which we call non-covalent or supermolecular interactions. The difference between these two basically is that non-covalent interactions are really, really weak. So, these interactions are continuously formed and raking in these network of molecules. And this allows the water molecules getting in and out of these network of molecules. So, although when these interactions are isolated, are relatively weak, as soon as they combine together, they could form a really amazing and complex structure. And this is actually what supermolecular chemistry came about. We tried to study why those molecules like to come together. And why these molecules, on how these molecules, then possible and form like more complex structure. And of course, what we can do out of these complex structures. So, just to put you more into the topic, I will show you an example in nature. Because nature uses every person of molecular interactions. So, instead of water, I will just show you here another molecule, which is called phospholipid, but still so important for us. For now on, we will call them building blocks. What is important for us is that these molecules have two different parts. The red one, which is the head, and is attracted to water. And the white one, which is the one that repels the water. So, what happened actually when we tried to dissolve these molecules in water? So, what happened is that the part that is repel by the water would try to look for similar parts. While the red's head, which is attracted to water, would point towards the solution. So, with four mechanics, this bilayer, like the one you can see on this map. And it's just remarkably important to say again, that this structure, you just hold by no covalent, which means real interactions. And these allow the molecules in solution to go into the assembly and the other way around, together of the cell. Because of this, our materials made out of this approach are done with really dynamic properties. And this is really important for nature, because this, by the way, for instance, can grow larger and form, for instance, the cell membrane. The cell membrane refers to be extremely dynamic. So, the cell membrane needs to attack when a change around the cell happens. And just imagine that one of these molecules, for instance, gets damaged. Because all of them are hold by no covalent interactions, with interactions. The damaged molecules can just get out of the assembly and be replaced by a new and a better one. If these kind of structures will be hold by covalent interactions, these strong ones, this will never happen, because we'll try a lot of energy and we'll just disrupt the whole structure. So, when nature cares about something, it's because real force is a process that it has to be optimized for millions of years, which means it's kind of perfect. And we, as scientists, always try to mimic nature into our synthetic materials. So, we actually care about the properties of these molecular materials, because we considered they could attack some properties that they are not accessible with covalent materials. And which one they are. So, basically, because they are made out of reversible interactions, they are considered dynamic, and they could do such offensive things, like defect correction. Because they are made out of small molecules, they are also easier to recycle. So, just imagine that one of these materials will end up in our body. If it's made out of simple molecules, small molecules, it's going to be easier for our body to recycle, to digest it, than if you just inject a whole huge molecule in our body. And because of the same reason, they are also easy to synthesize. And, of course, companies always think about money and the easier it is, the better it is for our material. So, how do we do these materials in our lab? So, what we actually do is just design this brick building blocks. It's called a red building blocks from that one. And these parts of all these building blocks is like when we put them in water, they don't like to stay in water. They run away to recognize each other and self-assamble for a minute, this kind of destruction for instance. And, actually, these materials have been already proved to be successful in so many applications. One of them, for instance, is as a solid support to control reactions. And what does it mean? It's like, it can encapsulate here inside some reactions. And it has been proved that the reaction inside these kind of materials happen faster than if I move into the reaction solution. What else? In a similar way, we can also encapsulate here drugs and control the release of these drugs. And they can also be really useful for these regenerating. So, if we have an injury, for instance, we can just apply the gel, sorry, this material. In the middle, the material allows the sand to roll through. And this means that the healing of our work would be much faster than if the material is still present in it. So, this material is already mentioned. They are dynamic because the yellow molecules go in and out of the solution. But, still, once we form the material, the macroscopic structure, the macroscopic properties of this material are kind of stable once I form the material. So, during my mercury project, I was wondering if we can make these materials a little bit more smarter. Meaning that, can I create and destroy this material on the map? Basically, I will create a material for a specific function. And when this function is strong, the material is just to disappear on the map. So, can I have actually a temporal control of these materials? And for this approach in our lab, we use what we call this passive supermolecular material. This makes it easier to be standing. And how do we do this? So, here is the site that I will show you for the traditional supermolecular material. But in our case, we start with the step behind. And since the size instead of the red brings the blue ones, which is the characteristics of these blue ones, they let you stay in order. So, they don't mind. They don't like to recognize each other and self-assertive. When we put them in the solution, they will just stay there. But what happened when I fumed this system? That these building blocks and non-antic ones become the active ones. And when they become the active ones, they don't like any more to stay there than the self-assertive one for the material that I was fuming for. But what is important now here is that I can always suppress the additional film and my material will just come back to the initial building position, release waste, and also dissipate energy. And this is the part where the name of our material is kept. So, what I have right now? I have temporal control of my materials with me just present as long as the film is present. But also important, I have the possibility to recycle the initial new building blocks. So, in this way, I can add a new batch of film and repeat the cycle again and again and again. And this is really good in terms of efficiency. So, in our lab, we tried to design different molecules over here in order to control the structure over here. You can do things like long and double fibers, short fibers, droplets, and so on. And what we do then with these materials? I'll show you now, two examples that we did in our lab. First of all, we tried to work with temporary hydrosols because we saw that maybe that could be an interesting application in terms of temporal control. So, imagine that you could just encapsulate a track inside one of these gels, put it below my skin, and let the track to be released according to the destroying of the material. So, if I can control how long this material will stay there, I can also control how long the track will stay there. So, here is just an example. Initially, I have a material solution. I fuel my system, I form the material that I want. And because the fuel is being consumed, the material is just vanishing over it. And this is what happens. We have a look into the microscope. Initially, we have basically nothing. And as soon as I fuel my system, the tiny fibers that grow and these are forming, these start to develop to collapse the soil over there. What else we did with these kind of materials? We also thought that there is now like a huge problem with paper consuming because people is just using one paper for once and then we don't need any more just for your paper. So, maybe we can also plan this temporary control of our materials for developing self-raising games. So, it would be cool if I just can use my paper once with an important information that I gave for the next two hours, but when I don't need it anymore, it just vanished and I can reuse the support again. So, in this case, what we do is just put our blue building blocks in the supporting gel. We strain coat our fuel. And then, in this case, the logo of our university just appears. And because, again, the fuel is being consumed, my message is raised over design. So, the next morning when I arrived to my office, my paper is basically in a game and I can reuse it for once and again and again. So, this is basically what I wanted to talk to you about today. I hope that, you know, now a little bit more about supramolecular chemistry and also that you understand what beyond the molecule means. Also important for me is if you also take a home message that these structures are made out of supramolecular interactions and also, of course, how this supramolecular chemistry would be a powerful tool to develop even complex materials in our case, we can put up with all and also excitingly easy processes. So, thanks so much for your kind attention and please, questions.