Subsequently, BP and VH were filtered separately using a filtering membrane of 0.22 μm pore size (Milipore, MA, USA) and stored in eyedropper polyethylene bottles.
A 5 kDa peptide fraction of the cytosol from coelomocytes (5-HCC) was obtained by using a filter with a membrane with a nominal size of 5 kDa (Ultrafree-0.5 PBCC Centrifugal filter Unit, Amicon Millipore, MA, USA).
This solution was filtered using a PTFE filter membrane (0.45 μm pore size) to form cloudy solution B. Then, solutions A and B were mixed either in a simple way by pouring B into A within 1 s or in a slow way by feeding B into A using a syringe pump within 1 h (non-synchronous) under rigorous stirring at room temperature (RT).
However, reproducible results were only observed using a double filter membrane setup with a top layer composed of regenerated cellulose and a bottom layer composed of nylon.
All reagents were dehydrated by molecular sieve 4 Å (Shanghai world molecular sieve Co., Ltd., Shanghai, China) and filtered using a membrane filter (0.45 μm) prior to use.
All reagents were dehydrated by molecular sieve 4 Å (Shanghai world molecular sieve Co., Ltd., Shanghai, China) for at least 24 h and filtered using a membrane filter (0.45 μm) prior to use as a reaction medium.
After 96 h flask cultivation of both strains, the culture supernatants obtained after centrifugation (7,000×g, 10 min, 4°C) were filtered using a membrane filter (ADVANTEC® C045A090C, 0.45 μm, Toyo Roshi Kaisha, Ltd. Japan).
After completion of each run, the catalyst particles were filtered using a membrane filter.
A microfluidics device that includes a filter membrane that uses porous polymer monoliths (PPM) can isolate EVs from mouse blood; the membrane removes cells and cell debris and allows passage of small vesicles like EVs for isolation and diagnosis.
