Our Team

Responsible Person (FvP)

Jörn Steiger is a trained biotechnology specialist and an expert in the GMP-compliant development and manufacture of autologous cell and immunotherapies, with more than 25 years of international experience across Europe, the USA and Asia. His expertise spans EU-GMP, NMPA-GMP, Swissmedic, AMG and ATMP regulation, combined with deep operational knowledge in aseptic processing, cleanroom design, QM-system development, validation, qualification and quality oversight.

As Responsible Person (FvP), the Swiss functional equivalent to a Qualified Person (QP) under EU-GMP, at SwissBioscience he carries legal responsibility for GMP compliance, batch certification, product release, deviation oversight and regulatory conformity of manufacturing processes. His work ensures that advanced cell-based therapeutics consistently meet the highest pharmaceutical quality and safety standards.

He has successfully obtained multiple manufacturing authorisations for ATMPs and innovative biological therapeutics, and maintains long-standing working relationships with regulatory authorities including the Paul-Ehrlich-Institut (PEI), German regional authorities, Swissmedic, ANSM and institutions in China.

His career and qualification includes roles as Responsible Person (FvP) in Switzerland, GMP Compliance Manager, consultant for clinical immunotherapy units, and general manager in veterinary biotechnology. He has delivered projects in Switzerland, Germany, France, Spain, Luxembourg, the USA and China.

His work focuses on building safe, standardised and regulatory-robust cell therapy platforms, bridging scientific innovation with rigorous pharmaceutical quality practice.

Medical director, SwissBioscience – Schlieren, Switzerland

Dr. Ranieri Mazzei is a renowned expert in plastic and reconstructive surgery, specializing in the clinical application of adipose-derived stem cells (ADSCs) for aesthetic enhancement, body symmetry correction, and post-trauma reconstruction. As the Medical director of SwissBioscience, he leads pioneering research in stem cell-based regenerative therapies, revolutionizing the fields of plastic surgery, anti-aging medicine, and tissue regeneration.

With an extensive background in stem cell biology and translational medicine, Dr. Mazzei has developed innovative protocols for using ADSCs in reconstructive and aesthetic procedures. His work focuses on:

• Plastic & Reconstructive Surgery: Utilizing stem cells from fat tissue to restore volume, correct asymmetries, and improve skin texture in facial and body procedures.
• Post-Trauma & Scar Healing: Enhancing wound healing and minimizing scarring after injuries, burns, or surgical procedures.
• Anti-Aging & Regenerative Aesthetics: Harnessing the regenerative power of stem cells to rejuvenate the skin, improve elasticity, and restore youthful contours.

Dr. Mazzei is actively involved in clinical research and international collaborations, pushing the boundaries of regenerative medicine in plastic surgery. His mission is to develop safer, more effective, and minimally invasive solutions for patients seeking both functional reconstruction and aesthetic refinement.

Specialist in Orthopaedics, Traumatology & Sports-Orthopaedic Medicine

Univ. Lecturer and Ass. Professor of Medicine (Austria)

Prof. Dr. Gobert Freiherr-Skrbensky is a leading specialist in Orthopaedics, Musculoskeletal Disorders, Traumatology, and Sports-Orthopaedic Medicine. With over 10,000 surgeries performed, he combines advanced surgical expertise with regenerative treatments such as Autologous Conditioned Plasma (ACP) and Multipotential (stem-) cell applications for joint and cartilage regeneration.

Trained at the Medical University of Vienna and the Mayo Clinic (USA), he serves as Assistant Professor at the Medical University of Vienna and is a Lecturer at the Technical University of Vienna (TU Wien).

His focus areas include joint surgeries, sports injury treatment, and regenerative orthopaedic therapies.

Guiding principle: "We focus on your mobility."

Head of Quality Control

Dr. Dilara Şahin is the Head of Quality Control at SwissBioscience, bringing extensive expertise in molecular and cancer biology. She holds a PhD in Cancer Biology from the University of Zurich, an MSc in Cell Biology from ETH Zurich, and a BSc in Molecular Biology and Genetics from Boğaziçi University. With a strong background in scientific research, quality management, and regulatory compliance, she plays a pivotal role in ensuring the highest standards in production processes.

In her role, Dr. Şahin oversees quality control strategies, ensuring that all laboratory and manufacturing processes adhere to Good Manufacturing Practice (GMP) and other industry regulations. She is responsible for the validation of analytical methods, risk assessment, and continuous process improvements to maintain the integrity, reliability, and reproducibility of production outcomes.

Her expertise in molecular and cell-based analytical techniques enables her to implement advanced quality control measures, ensuring the purity, potency, and consistency of hADSCs. She collaborates closely with production teams and regulatory authorities to drive excellence in quality assurance, contributing to SwissBioscience’s commitment to innovation and patient safety.

With a meticulous and detail-oriented approach, Dr. Şahin ensures that every product meets the highest safety and efficacy standards, supporting the company’s mission to advance cutting-edge regenerative medicine solutions through rigorous quality control and scientific excellence.

Head of Production

Dr. Niran Maharjan holds a PhD in Neuroscience from the University of Bern and has extensive postdoctoral research experience at EPFL (École Polytechnique Fédérale de Lausanne) and the University Hospital Bern. With over a decade of expertise in primary cell cultures and stem cell research, he has played a pivotal role in advancing neurodegenerative disease models, aiming to uncover the fundamental mechanisms that drive these conditions.

His research background includes the development and optimization of in vitro and in vivo models to study neurological disorders, focusing on cellular dysfunction, neuroinflammation, and regenerative therapies. His expertise in stem cell biology has positioned him at the forefront of translational research, bridging the gap between fundamental science and clinical applications.

As the Head of Production / Deputy Qualified Person at SwissBioscience, Dr. Maharjan is responsible for overseeing the large-scale production of human adipose-derived stem cells (hADSCs) from lipoaspirates. He ensures that all processes adhere to Good Manufacturing Practice (GMP) standards, maintaining the highest levels of quality, safety, and regulatory compliance. His leadership ensures the consistency and reliability of stem cell products, supporting their application in regenerative medicine, plastic surgery, and therapeutic development.

Dr. Maharjan’s commitment to scientific innovation, precision, and quality assurance drives SwissBioscience’s mission to deliver cutting-edge stem cell solutions for medical advancements.

Deputy Head of Production

Dr. Chloé Turpin is an accomplished scientist with a strong academic background in biochemistry and molecular biology. She holds a Bachelor’s degree in Biochemistry, a Master’s in Life Sciences, and a PhD in Cellular and Molecular Biology, equipping her with extensive expertise in molecular biology, biochemistry, and cell-based analytical techniques.

As the Deputy Head of Production at SwissBioscience, Dr. Turpin plays a critical role in ensuring the highest standards across research, development, and production. She oversees rigorous testing, validation, and regulatory compliance, ensuring that all processes adhere to Good Manufacturing Practice (GMP) and other industry standards. Her work is essential in guaranteeing the purity, potency, and consistency of human adipose-derived stem cells (hADSCs).

With a meticulous approach to quality assurance and scientific integrity, Dr. Turpin implements advanced analytical methodologies to monitor cell viability and functional efficacy. She collaborates closely with researchers, production teams, and regulatory bodies to uphold SwissBioscience’s reputation for excellence in future stem cell-based therapeutics and regenerative medicine.

Her commitment to precision, compliance, and scientific excellence ensures that every product meets the highest safety and efficacy standards, supporting the company’s mission to advance regenerative medicine through innovative, high-quality stem cell solutions.

QC-QA Specialist

Veronica is a dedicated QC-QA Specialist with a Master’s degree in Medical Biotechnologies and PhD-level expertise in Immunology and Human Genetics. With a strong background in biomedical research and personalized medicine, she plays a crucial role in ensuring the accuracy, reliability, and compliance of scientific findings and product developments. Her expertise spans quality control, quality assurance, and regulatory compliance, helping to drive innovation in the healthcare and biotech industries while maintaining the highest standards of precision and excellence.

Senior Production Specialist

Eni Sinani is an experienced Senior production specialist in the manufacturing of stem cells. Eni holds two master’s degrees: one in Molecular Biology from the University of Tirana, and another in Molecular Biotechnology from Anhalt University of Applied Sciences in Germany. Eni’s academic background is complemented by hands-on experience in genetic analysis, cell culture, biochemistry, and advanced laboratory techniques.

QA Specialist

Sara Nafi is an experienced QA Specialist, holding a Master's degree in Medical and Pharmaceutical Biotechnology. Her academic background is further enhanced by hands-on experience in immunology techniques, including histochemistry, immunofluorescence in both 2D and 3D samples, 3D histology, and ultra-light sheet microscopy.

Production Technician & MD Assistant

Mingjie Xi holds an MSc in Pharmaceutical Biotechnology from ZHAW and an MSc in Cancer Immunology and Biotechnology from the University of Nottingham. With a strong scientific background and hands-on laboratory experience, Mingjie brings solid expertise in GMP-aligned production processes and biotechnological workflows. She is skilled in operating and maintaining production equipment, following standardized procedures, and supporting smooth day-to-day production activities. Mingjie combines technical precision with a proactive, solution-oriented mindset, contributing effectively to reliable and efficient production operations.

R&D Scientist

Dr. Saurav Subedi earned his PhD in Cancer Biology from the University of Bern and brings extensive experience from leading research institutions including ETH Zürich, University Hospital Zürich, and Bayer Healthcare. With a career bridging both academia and industry, he plays a pivotal role in shaping and driving research strategy at Swiss Bioscience.

During his academic training, Dr. Subedi specialized in personalized medicine, cancer biology, immunology, and in vivo experimentation. He engineered genetic rodent models of prostate cancer to investigate how metabolic pathways influence tumor initiation and progression. This work required a comprehensive understanding of cross-organ physiology, metabolic regulation, and tissue homeostasis, knowledge he now applies to translational research and strategic development.

With a strong foundation in scientific methodology and analytical problem-solving, Dr. Subedi is dedicated to expanding Swiss Bioscience's innovation portfolio and tackling real-world challenges in healthcare and the pharmaceutical industry.