Depends. Nix's power is Intangible Arms. If they're constantly intangible, then no. Likewise, if I'm limited to low-level Quantakinesis (ie the kind that does not yet facilitate powers like Rapid Regeneration), then it may be a stretch. Workable, if GV says so, but still...a stretch. Especially since I intend to leave most Quantakinetic feats to simple objects, rather than things as complex as body parts.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)