For all we know. CCA may have funded a grad student's summer research project (related to liposomes?) some years ago (with the requisite IP right-of-ownership assigned to CCA). If anyone wants to see substantive examples of funded research, a web-search using terms like
"sponsored research agreement" <space> 'university-of-pennsylvania"
can dredge up dozens of public records in company PRs, SEC filings & various universitys' (not just UP but Yale for example) departments & procedures that provide the kind of details completely lacking in the copy-and-paste text used to repeatedly populate NDT's filings and will-o'-the-wisp websites.
I agree that there has been more than enough time for any real/current activity related to what NDT purports to do to be revealed. Recent events (the recently aborted reverse-merger) imply more that this is nothing now beyond a public listing that can potentially be sold to an entity looking for an entry into the US market without an IPO. That's not nothing, but you gotta have faith that whoever's up in the cockpit knows how to fly the thing.
I look forward to events proving my guesses to be completely wrong.