From nano at chalmers.se Mon Mar 6 09:53:55 2023 From: nano at chalmers.se (Nano) Date: Mon, 6 Mar 2023 08:53:55 +0000 Subject: [Info.aoa-nano] Small talks about Nanoscience "Localized surface plasmons: Harvesting sunlight to catalyze chemical reactions" Message-ID: <0be265f4e9b84d968ddbe6db565b2a21@chalmers.se> SmallTalks [about Nanoscience] Please join us today, Monday 6 March at 15.00h for our SmallTalks [about Nanoscience] You are welcome to join us in lecture hall Kollektorn, MC2 with fika or on zoom. Our speaker is Jakub Fojt, PhD student at Condensed Matter and Materials Theory, Department of Physics. The seminar is divided into two parts, where the first part consists of a pure overview of the field and is held on a generally accessible level (10 min). The second part will be more technical (15-20 minutes). Abstract Metal nanoparticles are particles that are smaller than a few hundred nanometers (a nanometer is one billionth of a meter) and consist of a metal. The electrons inside them are easily made to move resonantly, in a motion that can be compared to sloshing from side to side in the nanoparticle. This motion is called a localized surface plasmon, and is typically created by the absorption of light. For example, it can be used to harvest sunlight and direct it to something useful, such as the catalysis of chemical reactions. In the first part of this talk, I will talk about localized surface plasmons in general and compare them to other resonances in nature. In the second part I will discuss the engineering possibilities when it comes to improving catalysis using this process and open questions in the field. Looking forward to seeing you live or on Zoom: https://chalmers.zoom.us/j/63018620593#success Best regards, Alexandra, Philippe, Christoph, and Janine -------------- next part -------------- An HTML attachment was scrubbed... URL: From nano at chalmers.se Mon Mar 6 15:58:20 2023 From: nano at chalmers.se (Nano) Date: Mon, 6 Mar 2023 14:58:20 +0000 Subject: [Info.aoa-nano] Smalltalks about Nanoscience "Chemistry Meets Quantum Computing: A New Era of Simulation and Study" Message-ID: <4556e6a55f094cc6931eb7f8712cd9f9@chalmers.se> SmallTalks [about Nanoscience] Please join us at 15.00h for our SmallTalks [about Nanoscience] You are welcome to join us in lecture hall Kollektorn, MC2 with fika or on zoom: https://chalmers.zoom.us/j/63018620593#success Our speaker is Werner Dobrautz, postdoc at Chemistry and Biochemistry/Chemistry and Chemical Engineering, Martin Rahm?s group? The seminar is divided into two parts, where the first part consists of a pure overview of the field and is held on a generally accessible level (10 min). The second part will be more technical (15-20 minutes). Abstract Quantum computing is a type of computing where information is processed using quantum bits (qubits) instead of classical bits, which allows for much faster and more powerful computation. However, current technology for quantum computing has some limitations, such as not being able to hold onto information for long, having errors in the operations, and not having enough qubits to do meaningful calculations. In the first part of this talk I will present why computational chemistry - the field of research that uses computers to simulate and study the behavior of atoms and molecules - can benefit from quantum computing. I will present a novel method that allows to perform meaningful chemistry calculations even with the limited number of available qubits of current quantum computers. Looking forward to seeing you live or on Zoom! Best regards, Alexandra, Philippe, Christoph, and Janine -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 3344 bytes Desc: not available URL: From nano at chalmers.se Mon Mar 13 13:44:56 2023 From: nano at chalmers.se (Nano) Date: Mon, 13 Mar 2023 12:44:56 +0000 Subject: [Info.aoa-nano] Smalltalks about nanoscience "Folding proteins with a quantum computer" Message-ID: SmallTalk [about Nanoscience] On Monday March 20th at 15.00h we welcome you all to our SmallTalk seminar series. You are welcome to join us in lecture hall Kollektorn, MC2 with fika or on zoom. Our speaker is Hanna Linn, PhD student at the Department of Microtechnology and Nanoscience, Applied Quantum Physics Laboratory and WACQT (Wallenberg Centre for Quantum Technology) ?. Abstract: We explore quantum-classical hybrid algorithms able to simulate protein folding and try to predict the size of the quantum computer needed to challenge today's classical algorithms. Protein folding is the process by which a protein molecule acquires its final three-dimensional shape, and the correct shape is crucial for the protein to function properly. Many diseases, such as Alzheimer's and cystic fibrosis, are caused by misfolded proteins, so understanding the process of protein folding could lead to new treatments for these and other diseases. One of the main challenges in simulating protein folding is the vast number of possible folds a protein can take. Finding the optimal fold is a large combinatorial problem involving many atoms' simultaneous movement and interactions. These types of problems are what quantum computers are theorised to be better at than classical computers. There are quantum algorithms today able to fold small proof-of-concept proteins; in the future, these algorithms may speed up the process of simulating protein folding. Though, quantum computers are currently not large and precise enough to challenge classical computations. We ask ourselves what kind of quantum computer we would need to revolutionize protein research. The seminar is divided into two parts, where the first part consists of a pure overview of the field and is held on a generally accessible level (10 min). The second part will be more technical (15-20 minutes). Looking forward to seeing you live or on Zoom: https://chalmers.zoom.us/j/63018620593#success Best regards, Alexandra, Philippe, Christoph, and Janine -------------- next part -------------- An HTML attachment was scrubbed... URL: From nano at chalmers.se Mon Mar 13 13:53:07 2023 From: nano at chalmers.se (Nano) Date: Mon, 13 Mar 2023 12:53:07 +0000 Subject: [Info.aoa-nano] Smalltalks about Nanoscience "WS2 nanoribbon and all-CVD MoS2-graphene FETs for nanoelectronic devices" Message-ID: <8eebd8265a644717a3ed89d8365398e7@chalmers.se> SmallTalk [about Nanoscience] On Monday May 15th at 15.00h we welcome you all to our SmallTalk seminar series. You are welcome to join us in lecture hall Kollektorn, MC2 with fika or on zoom. Our speaker is Anamul Md Hoque?, PhD student at Quantum Device Physics, Department of Microtechnology and Nanoscience. It has been 75 years since the invention of the transistor that heralded the modern electronic age. Two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDCs) have attracted tremendous interest for high-performance and energy-efficient nanoscale field-effect transistors (FETs). Despite recent advances in down-scaling the gate and channel lengths, the fabrication of sub-25 nm narrow channel of TMDC FETs remained challenging. In my talk, I will demonstrate the fabrication of tungsten disulfide (WS2) nanoribbon down to sub-10 nm width. Nanoribbon FETs exhibit good transistor performance, where the transport parameters are governed by the narrow channel effects. In addition, scalable chemical vapour deposition (CVD)-grown MoS2 and graphene FETs are very promising for future nanodevices, especially for flexible solar cells, memory devices, and neuromorphic computing. I will also show transport properties, memristive switching, and Schottky barrier analysis in CVD-grown MoS2 -graphene heterostructure FET devices. These findings open the door for the fabrication of future-generation nanometer-scale transistors, sensors, and optoelectronic devices based on van der Waals semiconductors. The seminar is divided into two parts, where the first part consists of a pure overview of the field and is held on a generally accessible level (10 min). The second part will be more technical (15-20 minutes). Looking forward to seeing you live or on Zoom: https://chalmers.zoom.us/j/63018620593#success Best regards, Alexandra, Philippe, Christoph, and Janine -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 3786 bytes Desc: not available URL: From nano at chalmers.se Mon Mar 20 09:23:31 2023 From: nano at chalmers.se (Nano) Date: Mon, 20 Mar 2023 08:23:31 +0000 Subject: [Info.aoa-nano] Smalltalks about Nanoscience "Folding proteins with a quantum computer" Message-ID: SmallTalks [about Nanoscience] Please join us today, Monday 20 March at 15.00h for our SmallTalks [about Nanoscience] You are welcome to join us in lecture hall Kollektorn, MC2 with fika or on zoom. Our speaker is Hanna Linn, PhD student at the Department of Microtechnology and Nanoscience, Applied Quantum Physics Laboratory and WACQT (Wallenberg Centre for Quantum Technology) The seminar is divided into two parts, where the first part consists of a pure overview of the field and is held on a generally accessible level (10 min). The second part will be more technical (15-20 minutes). Abstract We explore quantum-classical hybrid algorithms able to simulate protein folding and try to predict the size of the quantum computer needed to challenge today's classical algorithms. Protein folding is the process by which a protein molecule acquires its final three-dimensional shape, and the correct shape is crucial for the protein to function properly. Many diseases, such as Alzheimer's and cystic fibrosis, are caused by misfolded proteins, so understanding the process of protein folding could lead to new treatments for these and other diseases. One of the main challenges in simulating protein folding is the vast number of possible folds a protein can take. Finding the optimal fold is a large combinatorial problem involving many atoms' simultaneous movement and interactions. These types of problems are what quantum computers are theorised to be better at than classical computers. There are quantum algorithms today able to fold small proof-of-concept proteins; in the future, these algorithms may speed up the process of simulating protein folding. Though, quantum computers are currently not large and precise enough to challenge classical computations. We ask ourselves what kind of quantum computer we would need to revolutionize protein research. Looking forward to seeing you live or on Zoom: Best regards, Alexandra, Philippe, Christoph, and Janine -------------- next part -------------- An HTML attachment was scrubbed... URL: From nano at chalmers.se Mon Mar 20 09:33:30 2023 From: nano at chalmers.se (Nano) Date: Mon, 20 Mar 2023 08:33:30 +0000 Subject: [Info.aoa-nano] =?windows-1252?q?Smalltalks_about_nanoscience_?= =?windows-1252?q?=22Cell_derived_vesicles_=96_friends_or_foes_in_Alzheime?= =?windows-1252?q?r=92s_disease=3F=22?= Message-ID: <6df82ca7bcaf48959388d043557c3a8a@chalmers.se> SmallTalk [about Nanoscience] On Monday May 29th at 15.00h we welcome you all to our SmallTalk seminar series. You are welcome to join us in lecture hall Kollektorn, MC2 with fika or on zoom. Our speaker is Vesa Halipi, PhD student at Chemical Biology/LIFE Sciences. Abstract: Alzheimer?s disease is a neurodegenerative disorder that causes problems with thinking, memory, and behaviour. Abnormal clumps of protein called amyloids play a central role in Alzheimer?s disease. Extracellular vesicles are released by all cells in our bodies and are believed to be important in Alzheimer?s disease, although their exact role is yet to be uncovered. We have studied the effect of extracellular vesicles on the formation of amyloids. The seminar is divided into two parts, where the first part consists of a pure overview of the field and is held on a generally accessible level (10 min). The second part will be more technical (15-20 minutes). Looking forward to seeing you live or on Zoom: https://chalmers.zoom.us/j/63018620593#success Best regards, Alexandra, Philippe, Christoph, and Janine -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 2941 bytes Desc: not available URL: