Burst Pressures (w187, 189, 310, 312)

There are two longitudinal studies for Chronic Kidney Disease (CKD). Ancillary studies can be set up to share the collected data, bio samples, or even request additional data to be collected. These Ancillary studies can be funded through normal channels, NIDDK, ASN, VA, etc. Approval to use the data should be requested 3-4 months before…

I ran some more tests on the microcon and nanosep filtration systems at 21.36psi (4000RPM) and 194.65psi (12,000RPM). Both are rated for forces up to 14,000 time gravity which is about 340psi but after talking to Tom we thought it best to run it at a slightly lower pressure to account for any possible error…

Following up on our previous work with SiN-NP with varied RIE times, Sarah and I measured permeability and permeance using a new measuring system better suited to the higher permeance and permeability we expect with the larger pores and higher porosity. Using the pressure regulator pictured above, we can set pressures of 3 psi and above…

I set up separations of 5nm Au nanoparticles in both H2O and KCl in a new system.  The stir cell isn’t always reliable for separations due to leaking and contaminating (?) particles from the plastic.  To perform these separations, I added 20ul of sample to a sepcon and wetted the backside of the sepcon with…

In this post, I’m going to discuss the results of the different PEG molecular on silane samples. We used same condition to make 4 chips for each sample. And we treat them with BSA, IgG, and PBS to rest the adsorption. We are using the SEM, contact angle and XPS as the testing method. The way we…

In an attempt to help wet the pores prior to permeability experiments, I’ve started soaking assembled SepCons in a %50 ethanol solution.  Each SepCon is inserted into an eppendorf so that the membrane side is fully submerged.  I realized that in my last post, I was soaking multiple samples in a beaker which did not…