Scanning Probe Lithography for Biomaterials and Bioelectronics

Our group focuses on the advancement and application of dip-pen nanolithography and related techniques like polymer pen lithography (PPL) for the site-specific chemical and bio-chemical modification of surfaces and devices.

The Scanning Probe Lithography for Biomaterials and Bioelectronics Group at INTOur research is aimed at the advancement and application of Scanning Probe Lithography (SPL) methods, in particular Dip-Pen Nanolithography (DPN) and related methods like e.g. Polymer Pen Lithography (PPL) and Microchannel Cantilever Spotting (µCS).

These SPL methods are versatile tools, combining many advantages of electron beam lithography, inkjet printing and microcontact printing in relation to resolution, integration and throughput. These methods are of particular interest when working with sensitive biological materials, since they work at mild process parameters and need no lift off processes (with the associated solvents or etching processes). Furthermore, the methods allows for "multiplexing", i.e. the parallel application of different inks within a pattern. Learn more about specific implementations and applications on our reseach page or browse our publications.

News

Fluorescent Sensor Arrays on MOFs
Sensor Arrays:

"Multiplexed Fluorescent Microarrays on MIL-101(Cr) Thin Films as Luminescent Probes for pH and Disease-Associated Molecules" by Wang et al. in Small (2025)

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New Groupmembers M. Hirtz
New Groupmembers:

We welcome Daisy Agrawal (PhD student) and Rakhi Singh (guest student) to our group!

Inverter Circuits
Thin Film Transistors:

"Optimizing the Performance of Printed Indium Oxide Thin-Film Transistors through Gallium Incorporation" by Saghafi et al. in Phys. Status Solidi A (2025) 2500294

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Defense Srivatsan Vasantham
Gratulations:

We gratulate Sri for successful defense of his PhD!

Yuxuan Liu M. Hirtz
New Groupmember:

We welcome our new master student Yuxuan Liu!

Bio-functionalization of 3D-printed Microstructures
Bio-Functionalization:

"Site-Selective Biofunctionalization of 3D Microstructures Via Direct Ink Writing" by Mathew et al. in Small 20 (2024) 2404429

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