where C 1 and C 2 are two integration constants that are calculated through boundary conditions in Eq. ( ). The above mentioned results have been shown in Fig. ( ), ( ), ( ) and ( ). The plots show variation of density profiles and the electrostatic potentials by altering the Bjerrum length of the medium. As you can see in Fig. (1), by increasing the Bjerrum length from 10 -4 a to a, the counterions get absorbed by the brush monomers and condensate on them. This is known as Manning condensation. As it is seen, the counterions start moving towards brush some where between l B = 10 -4 a and l B = 10 -3 a. This is the interval where the absorption transition occurs. Also, we see that monomers get depleted from the surface but the counterions get accumulated around surface.