Various physical methods of unrolling, including the use of chemicals, have been attempted over the past 275 years, but none have proven to not destroy the scrolls. As far as I know no physical unrolling has been attempted since the 80s and I believe that now only non destructive methods are being employed. For fragments and already shattered and opened, unrolled scrolls a variety of imaging techniques exist and are still being improved upon by teams and research groups we are not associated with. For unrolled scrolls, I believe at this point no one will ever attempt physical unwrapping ever again.