Access the Simulink.Bus elements from cell array of Bus objects.

I have cell array containing cell arrays of bus objects with its simulink.bus elements. I want to search the simulink bus element in thos cell with the name of sub bus.

For ex: if I have "Bus" cell array>>with "Sub_Bus" cell arrays>> and Signal 1.simulink bus element in it.

I want to search "signal 1" in Cell "Bus" and also want "sub_bus" name into which signal 1 is placed using matlab code .