The hows, whats and whys of automated mass photometry

The release of the TwoMPAuto in early 2022 represents an important improvement in the capabilities of Refeyn’s mass photometers. And like with any new product, there are some questions that frequently come up about how it works and what it can do.

Studying protein-DNA interactions with mass photometry

The study of protein-DNA interactions feeds into understanding the mechanisms of DNA replication, repair and transcription, gene expression, and the packaging of chromosomal DNA [1]. Now, a relatively new way to study protein-DNA interactions is entering the analytical toolbox: mass photometry.

How to study membrane proteins with mass photometry

The biologically important membrane proteins remain a challenging target for structural and functional studies, despite recent advances in biomolecular characterization capabilities. This is due to intrinsic difficulties in expressing, purifying and preparing membrane proteins for analysis while preserving their structure and activity.

Mass photometry saves you time and money in cryo-EM experiments 

You can never get enough time on an electron microscope. To make the most of the time you do have, you need to streamline the cryo-EM workflow. Negative stain EM (NS-EM) can help you optimize buffer conditions and assess sample quality before you move to the low-temperature microscope, but it’s a time-consuming, expensive technique. What you need is a cost-effective method that can speed up your analysis. The TwoMP, a bioanalytical tool that uses mass photometry to characterize biomolecules, can help you optimize your sample analysis without breaking the bank (or project budget). In this blog, Refeyn product manager Cathryn Langley, DPhil, tells us all about it.  

Everything you need to know about analysing AAVs with mass photometry

Ask any AAV researcher – figuring out how many of your capsids are filled and how many are empty is a long and laborious process. There is a clear need to overcome the drawbacks of the current gold-standard analytical methods so users can rapidly and cost-effectively characterise AAVs.

Back to BPS: Celebrating four years of mass photometry

Four years ago, at the Biophysical Society’s Annual Meeting 2018 in San Francisco, an early mass photometer made its first public appearance, when a University of Oxford team led by Philipp Kukura and Daniel Cole brought a prototype to demonstrate live in the BPS exhibition hall.