DOI: 10.1002/elps.202200230 The back cover picture shows a free-flow electrophoresis device separating and collecting different proteins. A novel velocity gradient is introduced across the chamber to counteract electrophoretic migration focus proteins at unique positions. There are several components overall profile that influence width of each protein stream, they deserve further investigation.

The supernatants of the homogenates from normal and cancerous human prostatic tissue run on polyacrylamide gel electrophoresis have 2 major electrophoretic bands when stained for prostatic acid phosphatase. The ratios of the electrophoretically distinguishable isoenzymes differ in normal and cancerous tissues. Similar distinctions between isoenzymes in normal and cancerous prostates are observe...