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Professor Lars Nielsen is leading the development of experimental and computational tools to analyse and design complex biological systems. His expertise in metabolic modelling and flux analysis is available nowhere else in Australia – and in few labs across the world. Professor Nielsen’s studies of biological systems as diverse as bacteria, baker's yeast, sugarcane, insects and mammals has attracted industrial partnerships with companies including Dow, Metabolix, Amyris, LanzaTech, Boeing, Virgin Australia and GE. These metabolic engineering partnerships have focussed on developing new ways of producing aviation fuel, various materials and bioactives (antibiotics, biopesticides, monoclonal antibodies). Professor Nielsen is also applying system analysis and design approaches to tissue engineering including novel strategies for generating microtissues for drug screening and using stem cells to produce red and white blood cells for transfusion.

International links

Professor Nielsen collaborates with some of the world’s pre-eminent metabolic engineers. A joint project with Prof Sang Yup Lee (KAIST, Korea) enabled several extended mutual visits to explore use of sugar for higher value products. A separate project focused on producing synthetic aviation fuel based on isoprenoids involves Professor Nielsen collaborating with global synthetic biotechnology company Amyris and leading isoprenoid metabolic engineer Professor Jay Keasling, from UC Berkeley. Professor Nielsen has secured $8million since 2006 from industry through research grants with US, European, Japanese, Korean, New Zealand and Australian companies.

Research Interests

• Advanced Drug Delivery and Nanomedicine 1.Advanced drug delivery methods (controlled release dosage forms such as tablets, granules and microspheres) 2. Biomaterials as next generation adjuvant for vaccine delivery 3. Surface modified nanomaterials (Silica, Polymer, Liposomes) 4. Programmable nanoparticales for oral drug delivery and targeting 5. Translocation of nanoparticles after oral drug delivery (In-vitro and In-vivo)

Qualifications

• Master of Pharmaceutical Science, Gujarat University
• Bachelor of Pharmacy, Gujarat University

Scaling-up fermentation processes is not straightforward due to the emergence of concentration gradients at scale. For gas fermentation processes, with CO2, CO and CH4 and H2, scaling is even more challenging as high mass transfer rates need to be obtained. In his work, Lars is developing a framework to reliably scale-up gas fermentation processes, considering both mass transfer and concentration gradients. We aim to employ mechanistic models, combined with wet-lab data, to develop relationships and fluid dynamic (CFD) models to estimate the fermentation performance at industrial scale. He specialised in topics like bioreactor and bioprocess design, bioprocess scale-up/scale-down, mass transfer and transport phenomena, metabolic and kinetic modelling and simulation techniques.