Talk with your caregiver about the best time to wean your baby. 1  Introducing solid foods: Weaning should begin when your baby is about 6 months old.  Weaning from breast milk: Your baby needs nutrients from breast milk until he is at least 12 months old.
Enzyme-linked secondary antibodies are applied as detection antibodies that also bind specifically to the antibody's Fc region (nonspecific). The plate is washed to remove the unbound antibody-enzyme conjugates. A chemical is added to be converted by the enzyme into a color or fluorescent or electrochemical signal.
Secondary [edit]. Secondary antibody is especially efficient in immunolabeling. In immunolabeling, primary antibody's Fab domain binds to an antigen and exposes its Fc domain to secondary antibody. Then, secondary antibody's Fab domain binds to the primary antibody's Fc domain.Since antibody's Fc domain is constant within the same animal class, only one type of secondary antibody is required to bind to many types of primary antibodies.hen, secondary antibody's Fab domain binds to the primary antibody's Fc domain. Since antibody's Fc domain is constant within the same animal class, only one type of secondary antibody is required to bind to many types of primary antibodies.