Sartorius Stedim Biotech (SSB), a leading international supplier for the biopharmaceutical industry, today announced its polyethersulfone membrane (PESU) is now integrated into two new, sterile ...

Sartorius Stedim Biotech has announced its polyethersulfone membrane (PESU) is now integrated into two new, sterile Sartocon® benchtop and production scale filtration assemblies. Using these ...

In designing a simple spectroscopy setup, we needed to synchronize the speed of a small, inexpensive dc motor precisely to 6000 rpm (100 Hz). Our first idea was to take a phase-frequency detector type ...