👉 In biochemistry, a hemotropic agent is a substance that can bind to and transport molecules across cell membranes in a manner similar to a plasma membrane. Hemotropics are also known as hemoproteins, which are proteins that have been engineered to bind to other molecules and transport them across the cell membrane for various purposes. Hemotropic agents can be broadly categorized into two main classes: ion channel inhibitors and protein carriers. Ion channel inhibitors block the opening of sodium and potassium channels on the