“Dry” Western blot transfer systems do not use transfer buffer at all. View Western Blot Protein Transfer. There is also a western blot manual on the web-page ... because I am used to wet transfer, but dry blot seems very enticing to me. In wet transfer, from the image above, you can see the western blot transfer modle-a sandwich with a regular order. Instead, the gel is placed between purchased, preassembled stacks containing the transfer membrane and proprietary buffer matrices. Transfer proteins in 7 minutes and move on quickly to the rest of your western blot processing. After electrophoresis is complete, proteins must be transferred from the gel onto a suitable membrane for antibody staining and detection. Dry transfers can be completed in less than 10 minutes. Semi-dry transfer is generally faster but wet transfer has a less tendency to failure and is especially recommended for large proteins more than 100 kD. Transfer is performed by passing a current across the gel to the membrane. Western blot transfer inefficient I'm currently having some problem with protein transfer. If your desired protein is large (for example >200 kDa) and requires more time in transferring, wet conditions are for you. Semi-dry transfer buffer 1 liter: 5.82g Trizma Base 2.93g glycine 200 ml methanol up to 1 liter w/dH20 small containers to soak filter paper & gel BioRad Semi-Dry Trans-Blot Cell The Trans-Blot SD Semi-Dry cell: 1. safety lid 2. cathode assembly with latches 3. Fits your gel size and works with your gel chemistry. Hello! The substantially longer time of transfer in wet conditions make it particularly suitable when you want better level of transfer. Wet (tank) transfers. Use intensite instead of voltage. Nitrocellulose membrane 6. Using a classic transfer buffer (20% methanol) a protein with less than 100 kDa should transfer in semi-dry conditions at 1 mA/cm2 during 1 hour. Drying out the membrane after a Western Blot transfer. So I decided to try this and I setup two identical gels. Western blot transfer can be done in wet or semi-dry conditions. 2 pieces blot filter paper (S&S GB003) 4. gel 5. So I recently came across some people talking about how they had good results after drying out the membrane post transfer so that the proteins get "burnt in" to the membrane, which reduces S/N ratio. PROTEIN TRANSFER. There are two common membrane types used for western blot analysis: PVDF and nitrocellulose.