Polyacrylamide gel electrophoresis the top to create the sample wells. After the gel is polymerized the comb can be removed and the gel is ready for electrophoresis. Various buffer systems are used in PAGE depending on the nature of the sample and the experimental objective. The buffers used at the anode and cathode may be the same or different. An electric field is applied across the gel, causing the negatively charged proteins or nucleic acids to migrate across the gel away from the negative electrode (which is the cathode being that this is an electrolytic rather than galvanic cell) and towards the positive
Barak (given name) Barak (given name) The given name Barak, also spelled Baraq, from the root "B-R-Q", is a Hebrew name meaning "lightning". It appears in the Hebrew Bible as the name of Barak ( ""), an Israelite general. It is also an Arabic name from the root "B-R-K" with the meaning of "blessed" though it is mostly in its feminine form "Baraka(h)". The Semitic root "B-R-Q" has the meaning "to shine"; "lightning". The biblical name " is given after Barak, a military commander who appears in the Book of Judges. The Arabic cognate is ' (not to be confused with ', which