Managing objective-C objects with c++ std::unique_ptr<> or std::shared_ptr<>

Objective-C can be mixed with c++ to some extent and can be called to each other. But Objective-C objects still are more or less manually managed, and RAII idiom is entirely absent from the language. I wonder if it is possible to manage the lifetimes of Objective-C objects with c++ smart pointers. Specially now that both boost scoped_ptr and shared_ptr have been added to the C++11 standard