Scientific Consulting Excellence
Personalised consultancy with over 40 years scientific experience
Providing expert consultancy in freeze drying and product development.
Leadership in Freeze Drying and Biotechnology Consulting`
With a PhD in Chemistry from the University of Warwick and professional recognition ( FRSC and CChem) Dr Paul Matejtschuk offers more than four decades of research experience. His expertise includes blood product development, a role at NIBSC on freeze drying WHO biological referenece standards, and deep knowledge in protein and biotech formulations.

40+
Years Research
Recent Peer Review Journal papers:
Impact of Formulation Choices on the Freeze-Drying of an Interleukin-6 Reference Material.
Matejtschuk P, Bird C, Ezeajughi E, MacLellan-Gibson K, Wadhwa M .Front Mol Biosci. 2022 Jul 4;9:868460. doi: 10.3389/fmolb.2022.868460. eCollection 2022.PMID: 35860358
Wijesekara PS, Malik K, Matejtschuk P, Smith G. Pharmaceutics. 2025 Nov 29;17(12):1542. doi: 10.3390/pharmaceutics17121542.
Reference Standards to Support Quality of Synthetic Peptide Therapeutics.
McCarthy D, Han Y, Carrick K, Schmidt D, Workman W, Matejtschuk P, Duru C, Atouf F. Pharm Res. 2023 Jun;40(6):1317-1328. doi: 10.1007/s11095-023-03493-1. Epub 2023 Mar 22.PMID: 36949371
Kellerman MW, Almeida T, Rudd TR, Matejtschuk P, Dalby PA. Mol Pharm. 2022 Sep 5;19(9):3242-3255. doi: 10.1021/acs.molpharmaceut.2c00398. Epub 2022 Aug 10.PMID: 35948076
25+
Years Freeze Drying
Expertise developed over 25 years in freeze drying, improving processes for diagnostics and biologicals.
Dr Paul Matejtschuk offers more than four decades of experience in scientific research, supporting high-quality consultancy.
Review Chapters and Guidance Recent Book Chapters:
Ward, K.R., Matejtschuk, P. (2026). The Principles of Freeze-Drying and Application of Analytical Technologies. In: Wolkers, W.F., Oldenhof, H. (eds) Cryopreservation and Freeze-Drying Protocols. Methods in Molecular Biology, vol 3060. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-5416-3_2
Lyophilization of Pharmaceuticals and Biologicals -New Technologies and Approaches. Eds. Kevin R. Ward, Paul Matejtschuk(2019)
Methods in Pharmacology and Toxicology
https://doi.org/10.1007/978-1-4939-8928-7
Humana New York, NY.
Part of panel of experts revising the WHO Guidance on preparation and use of International Biological Reference Standards
14
Years Blood Products
Significant contributions during 14 years focused on immunoglobulin and Mab products development to
clinical trial and licence application
formulation
downstream processing
product characterisation
stability analysis
Matejtschuk, Paul (ed.), Affinity Separations: A Practical Approach (Oxford, 1997; online edn, Oxford Academic, 31 Oct. 2023), https://doi.org/10.1093/oso/9780199635504.001.0001,
Why Choose Dr Paul Matejtschuk for Scientific Consulting
Decades of scientific research and development in pharmaceuticals and freeze drying, delivering reliable expert consultancy.

Extensive Research Credentials
Four decades of published research and applied science expertise.
Over 100 peer reviewed papers, book chapters and briefer trade publications

Freeze Drying Specialist
Decades developing freeze drying
Formulation
Cycle development
Process analytical technology
Stability strategy
Contact Dr Paul Matejtschuk for Expert Scientific Consulting
Connect with Dr Paul Matejtschuk, PhD FRSC CChem, for personalised, expert scientific consulting in biotechnology and pharma development.
Reach out to Dr Paul Matejtschuk for expert consultancy services and project support.
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