Adsorption behaviors of acridine orange(AO) and biphenyl (BP) to DNA liquid crystalline gel (LCG) beads in aqueous dispersing solution have been studied theoretically and experimentally. A theoretical consideration based on nonequilibrium thermodynamics predicted that the time course of the adsorption process is expressed with a scaled equation, and a scaled number of adsorbed carcinogen molecules h is expressed with the square root of a scaled immersion time (t) over tilde, (n) over tilde proportional to root(t) over tilde at early stage, whereas it is expressed with a power law function 1 -(n) over tilde proportional to ((t(e)) over tilde - (t) over tilde)(3/2) for (n(0)) over tilde > 1 and an exponential equation (n(0)) over tilde -(n) over tilde proportional to e(-t/alpha tau 0) for (n(0)) over tilde > 1 at later stages of adsorption. Here, (n(0)) over tilde is the ratio of the initial number of carcinogen molecules in the dispersing solution to the number of the sites of adsorption of carcinogen molecules in the beads, (t(e)) over tilde is the scaled equilibrium time of adsorption, tau(0) is a time constant for adsorption, and alpha is a constant. Observed adsorption processes for AO were well expressed by the predicted ones, and the fitting parameters (n(0)) over tilde and tau(0) increased with increasing cobalt chloride concentration C-Co used for preparation of the beads, and both saturated above C-Co >= 400 mM for the adsorption of AO, whereas the adsorption processes for BP were expressed with the square root function. These results indicate that (1) the adsorption process at early stage is explained by diffusion-limited binding of the carcinogen molecules to DNA beads, and the time range of the early stage depends on the solubility (the solubility of AO in water is high whereas that of BP is low); and (2) the process at later stages depends on the balance of the numbers of adsorption sites and carcinogen molecules.