Protein aggregation presents a significant challenge during the development, manufacture and storage of biotherapeutic products. These medicines contain proteins that can form aggregates when environmental conditions or handling procedures affect their stability. Subvisible particles deserve particular attention because they can escape visual inspection and, in some cases, trigger unwanted immune responses that may compromise patient safety.
Manufacturers and researchers must therefore understand how protein aggregates form, how their populations change over time and how different conditions influence their size and concentration. Accurate protein aggregation analysis provides valuable data to support formulation development, product quality assessment and risk management.
Temperature fluctuations, mechanical shear, high protein concentrations and extended storage can all influence protein stability and aggregation. By investigating these stress factors, researchers can identify conditions that encourage particle formation and assess how formulations respond to different handling and storage environments.
Measuring particle size distribution alongside particle concentration helps researchers compare samples and treatments objectively. These measurements can reveal changes that other analytical techniques may overlook, particularly when researchers need to characterise subvisible particles across a range of sizes.
The ViewSizer 3000 uses nanoparticle tracking analysis (NTA) to characterise particles by tracking their Brownian motion and analysing their light-scattering behaviour. Its three-laser optical system helps researchers analyse heterogeneous particle populations across a broad size range.
For protein aggregation studies, the ViewSizer 3000 provides particle size and concentration data that help researchers investigate aggregation behaviour and compare the effects of different experimental conditions. This information supports a more detailed understanding of particle populations during formulation development and stability investigations.
Reliable protein aggregation analysis helps researchers make informed decisions about formulation composition, handling procedures and storage conditions. By monitoring particle size and concentration, teams can identify potential stability issues earlier and build a stronger evidence base for product quality assessments.
Discover how the ViewSizer 3000 NTA Analyser can help you characterise subvisible particles and investigate protein aggregation to support the development of high-quality biotherapeutics.