1 Wash off with lukewarm water once it dries down. 2  If this sticks to your skin, take a clean cloth and wet it with warm water. 3  Rub your face gently with this cloth to remove the oats scrub from your face. 4  Repeat 2 times a week to get rid of black spots on your face.
Please help improve the article with a good introductory style. (October 2009) (Learn how and when to remove this template message) A molecular probe is a group of atoms or molecules used in molecular biology or chemistry to study the properties of other molecules or structures.
Tryptophan is a very commonly used intrinsic probe for determining the conformational state of a protein. The excitation wavelength of the indole group of tryptophan is commonly ~295 nm and the emission is between 300 and 350 nm.