His solution is to add a P channel MOSFET which only allows power to flow when the polarity of the source voltage is correct. The schematic above shows the P-FET on the high side of the circuit.

For example, the endothelial tissue that lines the human gastrointestinal tract consists of several cell types ... This organization depends in part on polarity, or the orientation of particular ...

A chip most often used for this purpose in single-cell applications is the Fortune ... providing over current, short circuit, and reverse polarity detection. It’s the kind of pin one might ...