PhD student in integrated AI/MD for the discovery of new materials

Publiceringsdatum: 2024-04-23

Letar du efter en chans att arbeta som doktorand på Chalmers Tekniska Högskola AB? Nu är det möjligt. Intresserade sökes för heltid-jobb hos Chalmers Tekniska Högskola AB - är du intresserad? De letar efter någon som vill jobba 6 månader eller längre. Platsen där jobbet finns ledigt är i Göteborg.

Chalmers Tekniska Högskola AB behöver fler anställda som stödjer arbetet inom doktorand. Kolla in deras lediga tjänst för att se om du har vad som krävs. Bli en del av Chalmers Tekniska Högskola AB genom att ansöka till jobbet som doktorand senast lördag den tjugofemte maj 2024.

Jobbannons

Project description

Per- and poly-fluoroalkyl substances (PFAS) have long been used in various industrial applications due to their favorable chemical and thermal stability, water resistance, and electrical insulation. In particular, they are widely used in the process of semi-conductor manufacturing; however, due to recent evidence of their adverse environmental and health effects, regulatory agencies are increasingly tightening restrictions on PFAS usage and pushing for their eventual phase-out, spurring an urgent need for alternative compounds. As such, semiconductor manufacturers face the imminent need to align their manufacturing practices with these strict, new regulations. The development of new PFAS replacements which address the potential risks associated with them while maintaining their favorable chemical properties is one of the crucial problems facing humanity in the next decade.

PFAS replacement compounds hold the potential for significant environmental and human health benefits. Known for their stability, PFAS are persistent in nature, to the point that they have become ubiquitous in air, water, and soil. This raises serious concerns about their long-term ecological impact. By identifying and employing new compounds that possess equivalent or superior functionality to PFAS, we can significantly reduce their environmental footprint and mitigate the contamination risks associated with their widespread use. Furthermore, the engineering of PFAS replacement compounds is a vital step in safeguarding human health. Studies have linked exposure to PFAS with adverse health effects, though there are limited studies on the computational prediction of PFAS toxicity. This motivates the inclusion of health effects and toxicity prediction in any future tool developed for the discovery and design of novel PFAS replacement compounds. By identifying compounds that exhibit similar or enhanced properties in semiconductor manufacturing, such as excellent thermal stability and superior electrical insulation, we can not only meet the existing requirements of semiconductor manufacturing, but also pave the way for innovative breakthroughs in environmental and human health. However, in order to engineer PFAS replacements with desired property profiles, we must have an understanding of their molecular structures, chemical and thermal stabilities, hydrophobicity, charge transport mechanisms, and device architectures in which they are to be used. In addition, we cannot neglect the identification of potential degradation pathways under mild conditions, as without considering the full lifecycle of these materials, it is not possible to assess nor improve their environmental impact.

For this project, the PhD candidate will work on a novel, multi-modal deep learning approach can be used to predict the aforementioned properties, wherever data is readily available, thus setting the stage for the de novo design of non-toxic, PFAS replacement materials with

low environmental impact. Our proposed approach integrates molecular dynamics with experimental data to learn meaningful representations of the materials. We will highlight its utility on the prediction of PFAS toxicity, chemical and thermal stability, and degradation pathways. These properties are keenly dependent on both the molecular and crystal structures of the material.

This project is part of a collaboration between the AI Laboratory for Biomolecular Engineering, led by Dr. Rocío Mercado at Chalmers, and the Intel-Merck AWASES Program, a joint academic research center between Intel and Merck with the goal of accelerating sustainable semiconductor manufacturing processes.

Information about the division and the department

The AI Laboratory for Biomolecular Engineering (AIBE) is based in the division of Data Science & AI (DSAI) in the Department of Computer Science and Engineering (CSE). Led by Dr. Rocío Mercado, our group uses methods from machine learning and the life sciences to understand how molecules interact to form complex systems, and how we can use these insights to engineer molecular systems for therapeutic applications. We are currently focused on applying our computational tools to improving the understanding and design of molecular systems for drug discovery and materials applications. We interact closely with leading academic and industrial groups in computational chemistry, bioinformatics, materials science, and computer science. In AIBE, we seek to create a vibrant and collaborative environment where students and postdocs are supported in their pursuit of challenging research questions at the forefront of machine learning and the molecular sciences.

The CSE department is a joint department at Chalmers University of Technology and the University of Gothenburg, with activities on two campuses in the city of Gothenburg. The department is divided into four divisions, and employs around 270 people from over 30 countries. Research in the department has a wide span, from theoretical foundations to applied systems development. We provide high quality education at the bachelor's, master's, and graduate levels, offering over 120 courses each year. We also have extensive national and international collaborations with academia, industry and society.

Our aim is to actively improve our gender balance in both our department and division. We therefore strongly encourage applicants from historically-excluded groups to our positions, such as women and non-binary individuals. As an employee of Chalmers and CSE department, students are given the opportunity to contribute to our active work within the field of equality and diversity.

For more information about major responsibilities, qualifications, contract terms, what we offer and the application procedure, please visit Chalmers webpages. See link: PhD student in integrated AI/MD for the discovery of new materials