Publication01 August 2019Analysis of αB-crystallin polydispersity in solution through native microfluidic electrophoresis
In this paper, the authors utilise microfluidic diffusional sizing and electrophoresis to characterise the oligomeric states of the chaperone protein alphaB-crystallin.
Publication25 July 2019Gradient-free determination of isoelectric points of proteins on chip
Lapinska et al. using a microfluidic system built in house design a new technique to determine a protein's isoelectric point (pI) based on microfluidic free-flow electrophoresis (μFFE). The approach exploits temporal rather than spatial pH gradients. To demonstrate the effectiveness of this method the pI of 7 different proteins of known pI were tested; β-lactoglobulin, ribonuclease A, ovalbumin, human transferrin, ubiquitin and myoglobin. The paper shows that this method is successful in determining the pI using this new technique without the requirement of generating and maintaining pH gradients which is often challenging for other techniques. The technique requires low voltages and low sample consumption. The paper also shows that using this technique it is possible to estimate the pI values for a wide range of proteins measuring at only two pH values, suggesting that this technique is rapid and accurate on small volume samples.
Publication04 June 2019Secondary nucleation and elongation occur at different sites on Alzheimer’s amyloid-β aggregates
In this paper MDS was used to identify two molecular chaperones which suppress secondary nucleation processes and inhibit the elongation of Aβ fibrils seen in Alzheimer's disease.