Understanding molecular self-organization: MIT and the University of Stuttgart conduct joint research

Molecules constantly interact with each other and can therefore arrange themselves into ordered structures. “Take whipped cream, for example,” says Professor Thomas Speck, head of the Institute for Theoretical Physics IV. "Air bubbles form when cream is whipped. Through molecular self-organization, fat and protein molecules form a network around these air bubbles, creating a foam structure." Whipped cream is, of course, just one of countless examples, according to Speck. "Molecular self-organization is one of nature’s fundamental principles of order and underlies even highly complex structures such as the human body."

“The better we understand molecular self-organization, the sooner we will be able to actively exploit and use it to develop new technologies,” says Speck. The chemical and physical properties of molecules are responsible for molecular self-organization. However, there are still many unanswered questions about what triggers the process and how it works in detail.

This is where a joint project between the Massachusetts Institute of Technology (MIT) and the University of Stuttgart comes in. Since May 2025, the Institute for Theoretical Physics IV has been collaborating with chemists at MIT to research new methods and models that will help improve our understanding of molecular self-organization.

Specifically, the researchers are examining electrochemical processes, i.e., processes triggered by electrical voltages or charge changes. Electrochemically controlled molecular self-organization plays a central role in the operation of batteries, among other things. “Our basic research could form the basis for the development of new supercapacitors that would, for example, greatly accelerate the charging of battery-powered vehicles,” says Speck.

The collaboration was initiated by MIT: "Professor Adam Willard, whom I know personally from my postdoctoral days, approached me. He conducts research at MIT on the organization of ions and the structure of electrolytes using computer simulations. Here at the Institute for Theoretical Physics IV, we use theoretical methods of statistical non-equilibrium physics to explain dynamic phenomena. Combining our two areas of expertise enables us to gain new insights."

The German-American project is made possible by the MIT Global Seed Fund. The aim of the fund is to deepen relations between MIT and the University of Stuttgart through joint projects, and to identify and exploit synergies. The fund provides up to $25,000 in start-up financing per project. "With these funds, we can finance research trips to the USA and Germany. This enables a particularly intensive exchange and gives the collaboration a valuable boost," says Thomas Speck. “For the early career scientists involved, the research stays also represent a great opportunity for professional and personal development.”

In addition to Willard and Speck, a doctoral student from MIT and a doctoral student from Stuttgart are part of the direct project team. Other researchers are also to be involved. The project is scheduled to run for one and a half years. Among other things, a joint workshop for both research groups is planned in Stuttgart during this time, which will provide ample opportunity for professional exchange and the development of joint ideas.

Apply Now: MIT Global Seed Fund 2025/2026
In the current call for proposals, researchers from all disciplines at the University of Stuttgart can apply for seed funding from the MIT Global Seed Fund until December 16. In particular, the program is aimed at ambitious early-career researchers who are still at the beginning of their academic careers.
Information for applicants