Rat Dialysis Device Animations

This post is a followup to my previous post, which can be found here. When last I posted, I shared a handful of videos showing membranes transferred onto glass with water vapor being wetted in shear, and noted how the wet-dry interface tended to rend them apart and/or drag them along them surface. I provided…

In order to include pumps on the prototype blood analyzer cartridges, it was necessary to implement a small pump using the existing knife-cut PDMS layer layup technique. The diaphragm architecture was selected due to ease of operation and minimal additional part requirements. CAD model of pump in Autodesk Inventor Bottom view of fabricated pump. The…

Just a quick update on my status: I got the NPN pre-filters from Greg in Montreal and finished testing 15 of them last week, so this week I will start doing additional experiments. I plan to explore the size separation capabilities in KCl, which should give even tighter distributions than LiCl. I don’t plan on…

Thanks to Kilean for the TEMs. One of the properties that influences strong SERS behavior is surface roughness; rougher metals produce a better SERS effect. People have electrochemically roughened surfaces before to make better SERS sensors. The following quote is from a review paper (SERS Materials Review Paper, 5 years old now) After decades of debate,…

Summary I need to replace the function of my breath to get water into the femtoliter sized cavity of the monolithic device. I achieve this using a small stream of ethanol vapor as a precursor, and then replace the ethanol with water. Once the chips are wet, they should be reasonably stable until they can…