Nadia Lengweiler, PhD, R&D Manufacturing Engineer
Nadia Lengweiler, PhD, R&D Manufacturing Engineer
Nadia Lengweiler, PhD, R&D Manufacturing Engineer
Biography
Dr. Nadia Lengweiler is a microfabrication engineer with a PhD in Nanotechnology from the University of Basel. Her expertise spans micro- and nanofabrication, microfluidics, electrochemical processes, and biocompatible materials.
She has extensive cleanroom experience and has developed micro- and nano-scale systems for advanced scientific instrumentation and biological applications. Her work bridges fundamental nanotechnology and practical manufacturing, with a strong focus on reproducibility, precision, and scalable process development.
Interview
NanoSphere: Tell us a bit about yourself—your background, journey, and what led you to where you are today.
Nadia: I am a R&D engineer with a PhD in Nanotechnology from the University of Basel. My journey started in chemical and biotechnology engineering, where I developed a strong foundation in materials science and physico-chemical processes. During my studies, I became increasingly fascinated by how structures at the micro- and nanoscale can enable entirely new technological possibilities. That curiosity ultimately led me into cleanroom fabrication and nanotechnology.
During my PhD, I designed and fabricated ultrathin nanomembranes for advanced structural studies, working extensively in cleanroom environments and collaborating with large-scale research facilities. That experience shaped my professional identity: I discovered that I thrive at the interface of precision engineering, materials science, and real-world applications. I particularly enjoyed building custom micro- and nanostructures from scratch and solving practical fabrication challenges.
After my doctorate, I moved into industrial R&D, where I worked on scientific instrumentation and micro-scale biological sample handling systems. This phase strengthened my ability to translate complex research ideas into robust, well-documented processes compatible with real users and products. I learned how essential reproducibility, cross-disciplinary communication, and system-level thinking are when moving from prototype to product.
Currently, I focus on electrochemical microfabrication in a manufacturing-oriented environment, where I contribute to process development, yield optimization, and scaling technologies toward stable production. What has consistently guided my path is the motivation to transform delicate, high-precision microstructures into reliable technologies that can operate outside the lab.
Throughout my journey, I have been drawn to interdisciplinary environments where physics, chemistry, materials science, and engineering intersect. I am particularly motivated by early-stage technologies that require both deep technical understanding and hands-on problem-solving to mature into scalable solutions.
It feels like a privilege to be part of the wave of innovation that has been happening since the pandemic, and it has reinforced what motivates me, which is working at the interface of formulation science and manufacturing to translate science into real medicine.
NanoSphere: Your trajecory moves from fundamental nanotechnology research into industrial R&D environments where precision, manufacturability, and timelines matter. Looking back, what were the most difficult conceptual shifts you had to make when translating nanoscale science into engineered systems, and how did those shifts change the way you now design experiments of define ''success'' in research?
Nadia: One of the hardest conceptual shifts was moving from proving that something can work to ensuring that it works reliably and reproducibly. In academia, success often means achieving an elegant result under controlled conditions. In industrial R&D, success means robustness — consistent performance, clear process windows, and transferability to others.
During my PhD, pushing physical limits was enough if it enabled insight or a publication. In industry, I had to rethink that mindset: a process that works occasionally is not viable. That shift forced me to focus on variability, failure modes, and manufacturability much earlier in development.
I also began thinking more in terms of systems rather than isolated components. Instead of optimizing peak performance, I now design experiments to test stability, repeatability, and scalability. Today, I define success not just as technical achievement, but as controlled, repeatable performance that can move beyond the lab into real-world use.
NanoSphere: Advanced nanofabrication and characterization often rely on highly specialized expertise and instumentation. From your experience, what responsibilities do engineers and scientists have to simplify without diluting - so that complex nanoscale capabilities can be responsibly transferred to collaboratoes, manufacturers, or downstream users?
Nadia: One key responsibility is to design systems that are tolerant, not fragile. In advanced nanofabrication, it is easy to create something that works beautifully under ideal conditions. But if small deviations break the outcome, the system is not ready to leave the lab.
Simplifying without diluting means engineering robustness into the process — widening process windows, minimizing manual tuning, and reducing hidden dependencies on operator skill. It also means integrating characterization early, so that quality control is built into the workflow rather than added later.
In my experience, simplification is not about making things less advanced; it is about making them controllable. That shift ensures that nanoscale capabilities can be safely transferred to manufacturers or collaborators without losing performance.
NanoSphere: If there’s one key message or insight you’d like to share with readers about the future of nanomedicine, what would it be?
Nadia: The future of nanomedicine lies in precision — not just targeting a disease, but interacting with biological systems at their fundamental scale. As we gain that level of control, therapies will become more personalized, less invasive, and radically more effective.