SamuxMP product family

Rapid analysis of full, partial, and empty ratios for AAV development through manufacturing and QC release.

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SamuxMP | Simple, rapid AAV characterization

The Refeyn SamuxMP is a mass photometer optimized for adeno-associated virus (AAV) characterization and is an essential analytical tool for laboratories working with AAVs. SamuxMP mass photometry measurements are quick and require very little sample.

 

The SamuxMP precisely measures the empty/full capsid ratio for AAVs of any serotype as well as the quantities of partially filled and overfilled capsids. It can also detect impurities and aggregation, and give a rough capsid titer estimate as part of the standard data analysis procedure.  

Headline?

Quantitative characterization of AAVs of all serotypes

Easy measurement of empty/full ratio of AAV capsids

Rapid analysis requiring minimal sample

User-friendly operation

Supporting Headline

Characterization of AAV samples​

Empty/full AAV ratio measurement

Serotype-independent analysis

Partially filled and overfilled capsid quantification

Rough estimation of titer

Rapid analysis requiring little sample​

< 5 minutes to result

Little sample needed

Minimal sample preparation

Very low operating costs

User friendly operation​

User training < 1 day

Software customized for AAV analysis

Benchtop instrument, easy decontamination

SamuxMP Auto | Walkaway solution for AAV analysis

The SamuxMP Auto is the automated mass photometer for AAV characterization, autonomously measuring up to 24 samples in as little as 90 minutes. The instrument rapidly measures AAV empty/full ratios, sample purity and particle aggregation for any AAV serotype – with high precision and reproducibility.

Headline?

Rapid characterization of empty/full AAV capsid ratio

Automated technology – 24 measurements in as little as 90 min

Highly reproducible data with minimal sample preparation

Automation unit retrofittable to the SamuxMP

Supporting Headline

Characterization of AAV samples​

Empty/full AAV capsid ratio 

Partially filled and overfilled capsids

Detection of aggregates and impurities

Rough titer estimation

Automated measurement

24 measurements in as little as 90 min

High reproducibility

Automation unit retrofittable to the Samux

Easy setup

Benchtop instrument

Minimal sample preparation

Minimal training required

Choose your configuration

Start where you are today and scale as you grow – both configurations deliver the same trusted mass photometry results.

Refeyn SamuxMP

For researchers who:

Refeyn SamuxMP Auto

For teams who need:

Transformative AAV analytics

 

 

 

 

 

Mass photometry is a bioanalytical technology that measures the mass of individual AAV particles in solution, quickly and using small amounts of sample.

Mass photometry is ideally suited for measurements of empty/full capsid ratios. Filled AAV capsids have greater mass than empty capsids, so they can be readily distinguished from empty capsids on mass photometry histograms (Fig 1).

Figure 1: Mass photometry measurement of AAV capsids (AAVDJ serotype) with SamuxMP.  Two distinct peaks are visible: one with lower mass corresponding to empty capsids, and a second with higher mass corresponding to full capsids.

Serotype-agnostic AAV analytics

The SamuxMP mass photometer can measure AAV capsids of any serotype without the need for protocol adjustments.

Figure 2 shows SamuxMP measurements of empty AAV capsids of four different AAV serotypes.

For each sample, the mass photometry measurements with the SamuxMP revealed a single, symmetric peak at the expected mass, confirming that the SamuxMP produces consistent results across serotypes.

Figure 2: Mass photometry measurements of empty AAV capsids of different serotypes on the SamuxMP. Mass histograms for four different AAV serotypes, with the mass and standard deviation calculated from three technical replicates.

Key advances of the SamuxMP Auto

The Samux™ Auto offers all the advantages of AAV capsid analysis with mass photometry while adding convenience and reproducibility via automated, highly consistent sample manipulation (Fig. 1). It accurately measures empty/full capsid ratios of AAVs, and detects partially filled and overfilled AAVs in heterogeneous samples.

The Samux™ Auto can autonomously analyze 24 samples in as little as 90 minutes (up to 180 minutes depending on the protocol, yet fits on a benchtop. Its integrated software suite allows the user to define measurement protocols, analyzes the 24 measurements on the fly, and make it easy to plot and export the resulting data in a variety of formats.

The robotics unit can be retrofitted to existing Samux™ instruments.

Fig. 1. The SamuxMP Auto offers autonomous and reproducible measurements. The mass histogram above shows the overlay of 22 measurements of different aliquots from the same AAV sample, illustrating the reproducibility of the measurements.

SamuxMP software package for GMP

SamuxMP GMP software modules provide necessary features to comply with FDA 21 CFR Part 11 and EU GMP Annex 11 such as user management authentication, audit trail, and access control.

This software solution expands the use of the SamuxMP and the SamuxMP Auto mass photometers to GMP – regulated environments and enables their use within AAV-based gene therapy manufacturing pipelines.

The software package supports compliance with the FDA 21 CFR 11 (US) and EU GMP Annex 11 regulations. It includes three applications: ManageMP, AcquireMP and EvaluateMPS.

The Refeyn service teams also provide installation and operational qualifications (IQ/OQ), as well as documentation and on-site training.

Frequently Asked Questions

Can SamuxMP measure partially filled AAV particles?

Yes, the SamuxMP can distinguish empty, partially filled and full AAV particles. 

Yes, the SamuxMP has a virus titer estimation function in its analysis software. 

Yes, we recommend a calibration at least once a day. We recommend performing a 1-point calibration with Refeyn’s MassFerence P2.

A software package compliant with FDA and EU GMP Annex 11​ regulations is available for use with the SamuxMP and SamuxMP Auto. In addition, the Refeyn service teams provide installation and operational qualifications (IQ/OQ) for instruments destined to GMP-regulated environments.

A software package compliant with FDA and EU GMP Annex 11​ regulations is available for use with the SamuxMP and SamuxMP Auto. In addition, the Refeyn service teams provide installation and operational qualifications (IQ/OQ) for instruments destined to GMP-regulated environments.

It can measure 24 samples autonomously including calibrants. After 24 samples, the glass sample carrier slide must be exchanged manually.

Yes, it can do dilutions in the 96-well plate. Dilutions are limited to factors that are multiples of 10.

Yes, we recommend running a calibrant as the first and last sample on every 24-well slide. This will ensure the highest mass accuracy and serve as an internal control. We recommend performing a 1-point calibration with empty AAV capsids of known mass. 

A software package compliant with FDA and EU GMP Annex 11​ regulations is available for use with the SamuxMP and SamuxMP Auto. In addition, the Refeyn service teams provide installation and operational qualifications (IQ/OQ) for instruments destined to GMP-regulated environments.

Top up your supply of consumables for mass photometry instruments!

SamuxMP Resources

Application Note

Optimizing and monitoring AAV capsid purification using mass photometry

Read this application note and learn how the SamuxMP mass photometer can quantify the empty/full capsid ratio of AAV samples in downstream purification, while also detecting impurities. Discover the advantages of the SamuxMP, in comparison to the gold-standard techniques such as analytical ultracentrifugation (AUC) and cryogenic transmission electron microscopy (cryoTEM), including its low sample and time requirements.

SamuxMP Mass Photometer

Application Note

Quantifying heterogeneous AAV capsid loading using mass photometry

Read this application note and learn how the SamuxMP mass photometer can measure relative abundance of empty, full as well as heterogeneously loaded viral capsids in an AAV sample. Discover how it compares with analytical ultracentrifugation (AUC) in determining the relative abundances of each AAV population. Mass photometry measurements take only minutes, require minimal training and very small sample volumes, which makes the technology optimal for AAV analytics.

SamuxMP Mass Photometer

Learn more about SamuxMP

Ready to revolutionize your research?

Find out how mass photometry can transform your sample characterization. Whether you’re focused on drug development, discovery science, or manufacturing, Refeyn’s innovative technology provides the insights you need to accelerate your breakthroughs.

Refeyn’s mass photometry solutions

We offer a range of mass photometers to suit different applications and budgets. Find the perfect instrument for your lab.

TwoMP product family

Measure the molecular mass of mRNA, antibodies and other proteins with speed, accuracy, and simplicity. Automated version available.

MyMass MP product family

Check sample purity and homogeneity quickly, easily, and accurately – and run cryo-EM, native MS, SPR, or BLI with confidence.

SamuxMP product family

Rapidly quantify empty, partially filled and full AAV capsids for development and manufacturing. Automated version available.

KaritroMP product family

Gain insights into size, purity and stability to quickly characterize samples of larger viral vectors or virus-like particles.

SamuxMP

Rapid analysis of full, partial, and empty ratios for AAV development through manufacturing and QC release.

SamuxMP

Serotype-agnostic AAV analytics

The SamuxMP mass photometer can measure AAV capsids of any serotype without the need for protocol adjustments.

Figure 2 shows SamuxMP measurements of empty AAV capsids of four different AAV serotypes.

For each sample, the mass photometry measurements with the SamuxMP revealed a single, symmetric peak at the expected mass, confirming that the SamuxMP produces consistent results across serotypes.

Figure 2 Mass photometry measurements of empty AAV capsids of different serotypes on the SamuxMP. Mass histograms for four different AAV serotypes, with the mass and standard deviation calculated from three technical replicates.

The Refeyn SamuxMP is a mass photometer optimized for adeno-associated virus (AAV) characterization and is an essential analytical tool for laboratories working with AAVs. SamuxMP mass photometry measurements are quick and require very little sample.

The SamuxMP precisely measures the empty/full capsid ratio for AAVs of any serotype as well as the quantities of partially filled and overfilled capsids. It can also detect impurities and aggregation, and give a rough capsid titer estimate as part of the standard data analysis procedure.  

  • Quantitative characterization of AAVs of all serotypes

  • Easy measurement of empty/full ratio of AAV capsids

  • Rapid analysis requiring minimal sample

  • User-friendly operation

Characterization of AAV samples​
  • Empty/full AAV ratio measurement

  • Serotype-independent analysis

  • Partially filled and overfilled capsid quantification

  • Rough estimation of titer

Rapid analysis requiring little sample​
  • < 5 minutes to result

  • Little sample needed

  • Minimal sample preparation

  • Very low operating costs

User friendly operation​
  • User training < 1 day

  • Software customized for AAV analysis

  • Benchtop instrument, easy decontamination

Ready-to-use consumables for SamuxMP and SamuxMP Auto

Transformative AAV analytics

Further resources

Mass photometry is a bioanalytical technology that measures the mass of individual AAV particles in solution, quickly and using small amounts of sample.

Mass photometry is ideally suited for measurements of empty/full capsid ratios. Filled AAV capsids have greater mass than empty capsids, so they can be readily distinguished from empty capsids on mass photometry histograms (Fig 1).

Figure 1 Mass photometry measurement of AAV capsids (AAVDJ serotype) with SamuxMP.  Two distinct peaks are visible: one with lower mass corresponding to empty capsids, and a second with higher mass corresponding to full capsids.
AAV empty full resolution transparent background.png

SamuxMP software package for GMP

Automated AAV analytics with the SamuxMP Auto

This software solution expands the use of the SamuxMP and the SamuxMP Auto mass photometers to GMP – regulated environments and enables their use within AAV-based gene therapy manufacturing.

The software package supports compliance with the FDA 21 CFR 11 (US) and EU GMP Annex 11 regulations. It includes three applications: ManageMP, AcquireMP and EvaluateMPS. 

The Refeyn service teams also provide installation and operational qualifications (IQ/OQ), as well as documentation and on-site training. 

To learn more about the SamuxMP and mass photometry on AAVs, download our product sheet

Frequently Asked Questions

Can SamuxMP measure partially filled AAV particles?

Yes, the SamuxMP can distinguish empty, partially filled and full AAV particles. 

Can the SamuxMP estimate the virus titer?

Yes, the SamuxMP has a virus titer estimation function in its analysis software. 

Do I need to calibrate the SamuxMP? How often?

Yes, we recommend a calibration at least once a day. We recommend performing a 1-point calibration with Refeyn’s MassFerence P2.

Is the SamuxMP GMP compliant?

A software package compliant with FDA and EU GMP Annex 11​ regulations is available for use with the SamuxMP and SamuxMP Auto. In addition, the Refeyn service teams provide installation and operational qualifications (IQ/OQ) for instruments destined to GMP-regulated environments.

The SamuxMP Auto is the automated mass photometer for AAV characterization, autonomously measuring up to 24 samples in approximately 90 minutes. The instrument rapidly measures AAV empty/full ratios, sample purity and particle aggregation for any AAV serotype – with high precision and reproducibility.

SamuxMP Auto
Cover of app note heterogeneous AAV

APPLICATION NOTE: Quantifying heterogeneous AAV capsid loading using mass photometry

Read this application note and learn how the SamuxMP mass photometer can measure relative abundance of empty, full as well as heterogeneously loaded viral capsids in an AAV sample. Discover how it compares with analytical ultracentrifugation (AUC) in determining the relative abundances of each AAV population. Mass photometry measurements take only minutes, require minimal training and very small sample volumes, which makes the technology optimal for AAV analytics. 

Simple, rapid AAV characterization

APPLICATION NOTE: Optimizing and monitoring AAV capsid purification using mass photometry

Read this application note and learn how the SamuxMP mass photometer can quantify the empty/full capsid ratio of AAV samples in downstream purification, while also detecting impurities. Discover the advantages of the SamuxMP, in comparison to the gold-standard techniques such as analytical ultracentrifugation (AUC) and cryogenic transmission electron microscopy (cryoTEM), including its low sample and time requirements. 

Cover of app note AAVs capsid purification
MassFerenceP2

Top up your supply of consumables for analyzing AAV samples with the SamuxMP and SamuxMP Auto mass photometers. Refeyn’s consumables are recommended to ensure consistent measurements.  

Purchase the sample preparation packs which include sample carrier slides and sample cassettes with 6 or 24 wells. Order MassFerence P2, a calibrant tailored for AAV analytics with the Samux mass photometers. Click below to order mass photometry consumables now.