For everyone conducting biological studies, this paper highlights how to think about sample size and replicates. It suggests using “SuperPlots”, which color codes data points from different experiments to better visualize the type of variability seen (i.e. random variability, experimental variability, etc…).
SuperPlots: Communicating reproducibility and variability in cell biology
Jim and I recommend everyone read it!
Hey all, So, I’ve been trying to replicate the exosome experiments that I did back during my rotation to varied success. I have had trouble with the plasma that we had frozen with precipitates that would not resuspend upon thawing. We ordered new plasma though so fresh batches of experiments will be coming up very…
Introduction Breakdown of the blood-brain barrier (BBB) is one of the earliest signs of sepsis and is linked with long-term cognitive impairment. We are developing a coculture model of the human blood-brain barrier (µSiM-hBBB) to elucidate mechanisms of BBB breakdown during sepsis. The first version of the µSiM-hBBB will be composed of two cellular components…
EO permeability: We often refer to the ‘efficiency’ of EO with pnc-Si as being very high, but this may not be the case. What is actually high, as in the case of the other modes of transport, is the ‘permeability’ in EO. Dimensionally, the quantity we’ve referred to (in various places) as the ‘efficiency, the…
Scope: Adipose derived stem cells were seeded onto Corning 3um tracketch membranes, human endothelial derived stem cells were seeded onto the membranes approximately five hours later. Numerous control wells were also seeded with ADSCs both on membranes and on the bottom of the 24 well plate. Three days after being seeded, media in each of…
Again a repeat of experiment and the observations. As seen above, the sample with both intact slits discolors the fastest (in Sepcon w/memb side down, DMEM w/o FBS, Oven @ 37C). Result is same as the previous two trials. One thing that I noticed is that the membrane in ‘one slit intact’ sample remains intact…
In an attempt to push the cutoff higher, we annealed two wafers outside the susceptor at 1000 C (SC 066) and 1100 C (SC 067) with a ramp rate of 100 C/s. The 1100 C does give a cutoff slightly higher ~5 nm, but I’m not sure if this is within the variability in different…