Phagocytosis is a complex process that eliminates microbes and is performed by specialised cells such as macrophages. Toll-like receptor 4 (TLR4) is expressed on the surface of macrophages and recognizes Gram-negative bacteria. Moreover. TLR4 has been suggested to play a role in the phagocytosis of Gram-negative bacteria. https://annekleiners.shop/product-category/bumpers/