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.
The first type of enzyme partner is a group called cofactors, or molecules that increase the rate of reaction or are required for enzyme function. Cofactors are not proteins but rather help proteins, such as enzymes, although they can also help non-enzyme proteins as well.