Our new diffusion chamber is finally here. Take a look at the photos first – in our next group meeting you can see the real thing. Today I will test its usability and reliability. Please keep in mind this is only the prototype, there must be upside space for improvement.
According to recent cell adhesion studies on aminosilanized pncSi, no significant difference between adherence to the silanized and non-silanized surfaces was found. This could have been due to the adsorption of protein from the cell growth media onto the surface nullifying the effect due to silanization which is supposed to make it hydrophobic. ‘If silane…
During my visit last, I deposited a couple of wafers and one of them is to test a even thicker Si film from the NSN stack. The thickness for the Si film is 200nm and the nitride layers are still 30nm. After deposition, the Si wafer was etched and the pop-out TEM grids were then…
This is my first attempt of depositing PEG using vapor deposition methods, in a controlled fashion. The stepwise procedure: Josh was extremely kind by providing me with a diced pncSi wafer [windowless]. He taught me how to do the buffered oxide etching to remove the native oxide from the surface. This step is just to…
Following time lapse movies show the spreading of HUVECs on pncSi and glass ( @ 37C, in L15 media supplemented with 10% FBS) over a time period of ~4 hrs. HUVEC spreading on pncSi HUVEC spreading on glass
Introduction/Motivation A problem many of us face in day to day research is the ability to change membrane format in a days to weeks notice. The cost of developing an entire new wafer of membranes for preliminary experiments is costly and time consuming. This cost and time increases when complex formatting is desired. All of…
I’m trying to find the best method to stain proteins on nitrocellulose, so we can easily see the protein on the NC membrane. I first tried Coomassie Blue which did not work very well with the NC. The Coomassie was too dark, as seen by the image below. Harold Smith gave me some Ponceau S…