3D Additive Manufacturing Driven Towards the Molecular Scale

The Cluster of Excellence is a collaboration of Karlsruhe Institute of Technology (KIT) and Heidelberg University (Uni HD). It pursues an interdisciplinary approach through conjunction of natural, engineering, and social sciences. 3DMM2O establishes scalable digital 3D Additive Manufacturing transcending from the molecular to the macroscopic scale.

This approach converts digital information into functional materials, devices and systems “made to order.” 3DMM2O creates a powerful technology push and pull by treating molecular materials, technologies and applications as indissolubly intertwined.

On the technology side, the scientific challenges are “finer, faster, and more”, i.e., advance molecular materials and technologies in terms of resolution, speed, and multi-material printing by orders of magnitude.

On the application side, we aim at functional 3D hybrid optical and electronic systems, 3D artificial materials called metamaterials, and at reconstructing functioning organotypic systems by using 3D scaffolds for cell culture.

Cluster Spokespersons

Martin Wegener

Prof. Dr. Martin Wegener
Karlsruhe Institute of Technology
martin wegener∂kit edu

Prof. Dr. Jochen Wittbrodt
Heidelberg University
jochen wittbrodt∂cos uni-heidelberg de


Network Future3DAMCluster 3DMM2O
Registration for the Cluster Conference 2023 now open!


You can now register for the 3DMM2O Conference 2023 – Future 3D Additive Manufacturing with the topic 3D Molecular Systems. It will take place from March 12 to March 17 in the baroque Schöntal Monastery, Germany (near Heilbronn) and aims at providing the latest research developments and future trends in the fields of materials, molecular self-assembly, and (bio)nanomaterials design and characterization. Conference chairs are Franziska Thomas (Heidelberg University) and Stefan Bräse (Karlsruhe Institute of Technology). Early bird tickets are only available in October and November!

Find out more and register here
New Cluster Publication about 3D Optomechanical Metamaterials


In a new publication by Cluster Young Scientists Alexander Münchinger and Li-Yun Hsu as well as PIs Eva Blasco and Martin Wegener published in Materials Today, the authors present mechanical metamaterials composed of liquid-crystal elastomers whose director field is arranged into a designed complex three-dimensional pattern during the 3D laser printing process. The presented examples overcome major limitations in responsive mechanical metamaterials and, with further improvements, many more possibilities for stimulus-responsive designed material architectures arise, e.g. optomechanical metamaterials responsive to sun light.

To the Publication
Eva BlascoHeidelberg University
Eva Blasco receives Ernst Haage Prize


Not long after being awarded with the Dr. Herrmann Schnell Grant, Cluster Principal Investigator Eva Blasco now received the Ernst Haage Prize in Chemistry for her outstanding scientific achievements in the field of design and synthesis of new polymer-based functional materials for applications in 3D and 4D printing. The Ernst Haage Prize is presented by the Ernst Haage Foundation, which is carried by the two Mülheim Max Planck Institutes. The award ceremony will take place on November 4, 2022, during a ceremony at the Mülheim Chemistry Campus of the MPIs for Coal Research and for Chemical Energy Conversion.

Further Information on the Award
Bragg mirrorQihao Jin, KIT
Highly Reflecting Mirrors from the Inkjet Printer


First author Cluster Young Scientist Qiaoshuang Zhang together with Cluster PI Uli Lemmer and colleagues demonstrate the first Bragg mirrors fully digitally manufactured by multilayer inkjet printing in a paper published in Advanced Materials. The developed method to print mirrors of variable size with a reflectivity of more than 99 percent enables additive manufacturing for various applications, ranging from microscale photonic elements to enhanced functionality and aesthetics in large-area displays and solar technologies, making inkjet printing a highly competitive candidate for the large-scale fabrication of high-quality Bragg mirrors. 

To the Press Release
Peer_FischerPeer Fischer
Prof. Peer Fischer becomes new Cluster PI


We welcome Prof. Dr. Peer Fischer as new Principal Investigator in the Cluster 3DMM2O. He will contribute his longstanding expertise in the Research Thrusts B1 and C3.

Peer Fischer is Professor of Experimental Physics (Molecular Systems Engineering) and conducts his research at the Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM) of the Heidelberg University. He is also Leader of the Micro Nano and Molecular Systems Research Group at the Max Planck Institute for Medical Research in Heidelberg. Before he moved his labs to Heidelberg University in 2022, he was Professor of Physical Chemistry at the University of Stuttgart.

Find out more
ELI5Cluster 3DMM2O
Explain Like I'm Five: New Video


In the new episode of our video format "Explain Like I'm 5", Cluster Young Scientist Hankun Yang from the Light Technology Institute (LTI) of the KIT explains what an electronic nose is, how it differs from the human nose, and how it can help us sniff out fire or mold. 

To the Video (German)