  Translocation of a polymer out of curved surface or membrane is studied via
mean first passage time approach. Membrane curvature gives rise to a constraint
on polymer conformation, which effectively drives the polymer to the outside of
membrane where the available volume of polymer conformational fluctuation is
larger. Considering a polymer release out of spherical vesicle, polymer
translocation time $\tau$ is changed to the scaling behavior $\tau\sim L^2$ for
$R<R_G$, from $\tau\sim L^3$ for $R\gg R_G$, where $L$ is the polymer contour
length and $R$, $R_G$ are vesicle radius and polymer radius of gyration
respectively. Also the polymer capture into a spherical budd is studied and
possible apparatus for easy capture is suggested.
