 Our second presenter today is Sahil Rastogi, whose 3 minute thesis title is Graphene-Based Multifunctional Nano-Electronics to Study Brain. The human brain, as we all know, is the computational unit of the body. If you zoom in, the brain tissue is made of specialized cells called neurons. If you zoom in further, these neurons consist of special proteins that allow them to interact with each other using electrical as well as chemical signals. And the extraordinary symphony in this electrical and chemical activity allows us to function, learn, think, innovate, etc. Now damages in neuronal networks can lead to devastating neurological diseases such as Alzheimer's and Parkinson's. Currently, these diseases are diagnosed based on physical symptoms. However, by the time these symptoms emerge, majority of the damage is already done, which makes it very challenging to treat the disease. So to address this challenge, I am developing graphene-based nano-devices. The crux of this platform is to enable monitoring of both electrical as well as chemical activity. And that is very, very important because any abnormality in either electrical or chemical activity is the first indication of poor neuronal health or advent of any disease. So why nano-devices? To understand that, let's imagine you want to measure the width of this finger. Now imagine a ruler with the smallest divisions much, much larger than the finger. You may still be able to estimate the width, however it won't be as accurate as it would be if the divisions were as small as or smaller than the width of the finger. Similarly, to achieve precise and accurate measurements, we need to develop devices with similar geometric scale as that of cells and proteins. And to achieve that, I am using a nano-material called graphene. So what's graphene? Everyone in this room must have used a pencil. The pencil lid is made of graphite. If you zoom in, graphite is made of stack of carbon sheets. And if you isolate a single sheet, that is called graphene, which is one million times thinner than an average human hair. The extraordinary properties of this nano-material such as high electrical conductivity, superior flexibility and extremely high surface area to volume ratio makes it the perfect and the unique candidate to sense both electrical and chemical signals. Developing such a unique nano-device platform that pushes the limits of the current technology will not only help us understand the brain function better, but also enable early diagnosis. That will allow us to treat these devastating neurological diseases at a much early stage. And I truly believe that this research will help bring hope to the individuals and the families such diseases affect. Thank you.