  The radiation of optically active (chiral) molecule placed near chiral
nanoparticle is investigated. The optimal conditions for engineering of
radiation of optically active (chiral) molecules with the help of chiral
nanoparticles are derived. It is shown that for this purpose, the substance of
the chiral particle must have both \epsilon_and \mu_negative (double negative
material (DNG)) or negative \mu_and positive \epsilon_(\mu_negative material
(MNG)). Our results pave the way to an effective engineering of radiation of
"left" and "right" molecules and to creating pure optical devices for
separation of drugs enantiomers.
