CryoWrite® is a Swiss-based biotech company and a start-up of the University of Basel. The vision of cryoWrite is to (i) accelerate structure-based drug design by improving the protein structure determination workflow and (ii) enable novel analytical methods for biomedical research. The cryoWriter is our first tool to reach this goal: a robot for cryo-EM sample preparation that addresses a central bottleneck for structure determination by cryo-EM.
Cryo-EM is today’s fastest-growing method to determine the atomic structure of biomacromolecules. For a long time, X-ray analysis of three-dimensional crystals has dominated the determination of the tertiary protein structure at atomic resolution. In the last decade, cryo-EM methods have made impressive progress, benefitting from improved hardware and software. Consequently, cryo-EM has evolved into one of the structural biologist’s driving methods for structure determination, as indicated by an exponential growth of atomic structures solved by the single-particle analysis approach and entered into the protein databank.
Notably, the single-particle approach allows the structure determination of proteins without crystallization. As a result, cryo-EM is mainly complementary to X-ray methods, especially for large proteins and complexes that are difficult to crystallize. cryo-EM can thus provide structural information on the structure of otherwise inaccessible biomolecules.
One bottleneck in the cryo-EM workflow that has remained is sample preparation. To overcome this hurdle, CryoWrite has developed unique microfluidic methods for protein isolation, sample preparation, and nano-analytics. Our cryoWriter’s unique combination of automation, microfluidic protein purification, and loss-free (i.e., without blotting) nanoliter grid writing opens new avenues for efficient and reproducible sample preparation to leverage cryo-EM technology.
Founders
Andreas Engel, PhD, Prof. Em.
Board member
Andreas holds a PhD in physics. He worked on laser physics and holography before joining the Biozentrum Basel. He pioneered STEM and AFM imaging in biology and initiated the Nanoscience Curriculum. After retiring from the University Basel, he was appointed at the Case Western Reserve University in Cleveland and later at the University of Delft for cryo-EM of membrane proteins.
Thomas Braun, PhD
Board member
Thomas is a trained biophysicist. During his PhD, he studied membrane proteins by electron microscopy. Later, he worked on nanomechanical sensors. Thomas and his graduate students work on combining microfluidics of the cryoWriter with electron microscopy, focusing on single-cell proteomics to study neurodegenerative diseases.
Hans-Andreas Engel, PhD
President of Board
Hans-Andreas’ background is in theoretical physics and quantitative finance. His academic and entrepreneurial achievements range from a Science publication to starting various profit-generating operations. In addition, he is active as a business angel in over ten startups. Further, he is experienced in building robust and complex IT infrastructure automation and real-time data processing. At cryoWrite, he can leverage these skills and work on strategic planning, business decisions, physics modeling, and software architecture.
The Fantastic Team
Our team is growing! We’ve recently welcomed and will welcome many talented new employees, expanding our collective expertise. This page is currently being updated. Stay tuned for more details about the fantastic people who make CryoWrite exceptional.
Alejandro Lorca Mouliaá
Alejandro studied electrical and mechatronic Systems engineering at top universities in Spain and Germany. From the beginning, he was interested in the intersection of software and hardware. He worked on various interdisciplinary projects, including solar technology, embedded systems, electric vehicles, and autonomous robotics. At cryoWrite, Alejandro can fully employ his diverse experience and cutting-edge robotic skills to provide innovative solutions for more efficient scientific discoveries.
Fabian Juengling
Fabian studied mechanical engineering at ETH Zurich, focusing on biomedical applications. For his Master’s thesis in 2024 in the Andreas Hierlemann Group (ETH Zurich in Basel), he worked on mechanically optimizing HD-MEA chip-to-brain slice interfaces. He joined our team in January 2025.
Jaroslaw Sedzicki, PhD
Jarek is a trained molecular biologist who has used electron microscopy (FIB/SEM, cryo-ET, single particle analysis) to study host-pathogen interactions for years. He has 10+ years of experience in protein structure determination and cellular imaging and a strong background in
membrane protein biophysics, microbiology, and cell biology. Jarek started in December 2024 in our team.
Armin Ruf, PhD
Armin is a scientist in structural biology and biophysics. His expertise ranges from soluble to membrane protein targets and small molecule to antibody drugs. He has a long track record as a leader of the pharmaceutical industry’s structural biology and biophysical assay groups. He also led drug discovery research collaborations with CROs, universities, and startups there.
Elaine Schneider
Elaine studied nanoscale science at the Swiss Nano Institute at the University of Basel. In 2024, she completed her Master’s thesis at the Biozentrum of the University of Basel. She has started an industry PhD with cryoWrite in the Biozentrum (team of Thomas Braun and group of Sebastian Hiller).
Olena Vydryk
Lena studied Process Engineering at the Odesa National Academy of Food Technologies in Ukraine and later expanded her expertise with additional qualifications in Accounting and Auditing. Bringing over 10 years of professional experience in accounting, tax reporting, and auditing. After relocating to Switzerland in 2022, Lena joined CryoWrite in 2023 as Accounting and Supply Chain Manager, where she applies her skills to optimize operations and support the company’s growth.
Jiacheng Pei
Jiacheng studied Automation Engineering with a specialization in Robotics at RWTH Aachen University. He has worked on robotics software development in both research and industry, contributing to robotic control and lab automation. Jiacheng joined our team in February 2025.
Leonardo Achá
Leonardo studied mechatronics engineering, focusing on the intersection of mechanical, electrical, control, and software engineering. His background includes experience in mechanical design, embedded systems, computer vision, industrial instrumentation, and control.
Before joining cryoWrite, he worked on interdisciplinary projects involving product design, hardware-software integration, PCB design, and system reliability. At cryoWrite, Leonardo started as a Robotics Intern, contributing to the development and automation of the cryoWriter.
