At Advanced Instruments, we believe that quality and productivity go hand-in-hand and have built a family of products and services to help biologics manufacturers and process developers ensure the yield, purity, and consistency of biopharmaceutical products through osmolality testing.

Whether you need to maintain optimal cell growth, ensure active pharmaceutical ingredient (API) purity and yield, or confirm quality during fill and finishing, we offer an osmometer that will keep your processes productive and on track, saving time and reducing costly re-work.

Osmolality can be applied across several applications:

Protein Therapies:

When it comes to process development and manufacturing of protein therapeutics, whether you’re making an antibody-based or other protein therapeutic, what you don’t know can slow you down. Osmolality can help you determine if

  • Your buffers and media are formulated correctly
  • If your solution has unexpected components
  • The steps involving solutions–i.e. cell growth, dialysis, chromatography – are proceeding consistently and as expected

Cell Therapies:

When the therapeutic you’re developing is cell-based, constant monitoring to optimize growth and ensure consistent culture conditions throughout multiple stages is critical for success. Osmolality testing can help you determine if:

  • Your stem cells at highest viability and product quality levels throughout culture and passaging
  • You are ensuring a high rate of cell recovery post-thaw
  • If your transduction mechanics are being optimized

Gene Therapies:

Consistency is critical when producing genetic therapies, including viral vector delivery and gene editing. Small deviations in the composition of cell growth media can have unwanted effects on cell density, cell composition, and virus yield. Using osmolality can help your group work towards those goals, as well as answer:

  • how to optimize the physiological range for transfection complexes
  • identifying media needs
  • determining effects of osmotic pressure on the stability of a complex


Osmolality testing is required to ensure that the final vaccine product is safe for administration. The osmolality must be within a physiological range to be introduced in human tissues. There is also evidence that injectable formulations with high osmolality may cause pain at the site of injection.

These are some common use cases for osmolality testing within vaccine development:

  • Upstream cell culture and/or cell expansion requires maintaining an environment at the appropriate osmolality for the specific cell type. For those modalities that are cell-based, regular osmolality testing will ensure that the media and environment are optimized.
  • Buffers used during any downstream processing should be tested for osmolality to verify the concentrations of the solutions that are meant to protect the drug substance throughout the chromatography and/or filtration operations.
  • Final product testing must include osmolality to verify identify and safety of any injectable.

Visit our website, www.aicompanies.com, to learn more about our OsmoTECH ® portfolio of bioprocessing osmometers.


Learn more about our latest osmometers designed for process development while seamlessly transferring into GMP environments with advanced data management features (21 CFR Part 11) in this presentation, hosted by Kendal Studd, Applications Scientist.

Osmolality serves as a key orthogonal property in downstream processing. This webinar will demonstrate the value of osmolality testing as a key process parameter in buffer preparation, purification, and filtration operations.

FDA warning letters due to incomplete data in the pharma and biotech industries can be prevented by ensuring the reliability of electronic records, a process known as Compliance with Data Integrity. 

Osmolality is a measure of solute concentration and an indication of the solution’s osmotic pressure (USP, EP). It provides the concentration of any solution and has several potential applications within cell and gene therapy development and manufacturing. Learn more about the role osmolality plays in viral vector stability.

Data is critical for operations within the pharmaceutical and life sciences industries, whether it is for compliance, operational excellence, reporting or development. Data integrity enables convenience and trustworthiness in all types of data generated in several areas across the workflow. As more people, systems and tools consume data, it becomes increasingly valuable because it can be translated into action to improve quality and performance while reducing costs and time to market. However, with additional systems and users comes a risk that, if not managed correctly, can compromise the integrity of data.

The bottleneck for real time control and real time release is lack of product-specific in-line sensors or fast at-line methods suitable for model-based prediction of process outcome. There are multiple sensor-based parameters that help monitor a purification process, but which ones serve as predictors for protein concentration?


Increase your productivity and reliability with powerful freezing point depression technology for osmolality measurement with the all-new OsmoTECH XT single-sample osmometer.  The OsmoTECH XT measures the widest variety of sample types (high concentration, high viscosity) accurately across bioprocessing and cell & gene therapy workflows.

Combining ease-of-use with features that streamline compliance with regulatory standards, the OsmoTECH Single-Sample Micro-Osmometer gives biotech and food and beverage labs the insight into their materials and processes to ensure quality while maximizing productivity.

Designed to meet the high sample throughput, regulatory compliance (including 21 CFR part 11), and data management needs of busy bioprocessing and biomanufacturing labs, the OsmoTECH PRO Multi-Sample Micro-Osmometer combines ease-of-use with accurate and precise osmolality measurements for reliable and reproducible results.


Advanced Instruments, Inc.

2 Technology Way

Norwood, MA 02062


Phone: (781) 320-9000

Contact: Shweta Nair