Convert a string/integer to superscript in C#

Is there a built in .NET function or an easy way to convert from:

"01234"

to:

"\u2070\u00B9\u00B2\u00B3\u2074"

Note that superscript 1, 2 and 3 are not in the range \u2070-\u209F but \u0080-\u00FF.