residual affinity

re·sid·u·al af·fin·i·ty

secondary forces that enable apparently saturated atoms, ions, or molecules to attract other atoms or groups, causing such phenomena as complex formation, hydration, adsorption, etc.
References in periodicals archive ?
In addition, our platform is being exploited through contract research agreements with pharmaceutical and chemical partners aiming at (i) designing chemical libraries directed to particular sets of disease-related targets or entire protein families, (ii) identifying new chemical entities with customized affinity profiles (hit identification), and (iii) identifying potential off-targets at which compounds designed for a particular target may have residual affinity (target fishing).