Some proteins may not have the right orientation and conformation to bind a biotin and subsequently desorb and diffuse away.
From the nature.com
Presumably, hydrocarbon precursors for a-C formation desorb before being able to reach the graphene flake due to the high temperatures and deposit on colder areas around the hot graphene.
From the nature.com
Moisture-impermeable finishes, such as cement render, are avoided because they impair the wall's ability to desorb moisture, necessary to preserve its strength.