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Month: August 2022

Is gramicidin A peptide antibiotic?

Is gramicidin A peptide antibiotic? Gramicidin is a polypeptide antibiotic that forms small pores in the cell membrane similar to nystatin, but allows only the movement of monovalent cations excluding anions. The cation selectivity sequence of gramicidin in cell membranes Read more…

How does a Simplex lock work?

How does a Simplex lock work? Simplex locks do support half-presses, where you only push the button half-way in. This doubles the number of possible combinations to 2,162. These half-presses are difficult to remember and difficult to use. Because of Read more…