N.C. Gen. Stat. § 116-41.6

All pledges of revenues under the provisions of this Part shall be valid and binding from the time such pledges are made. All such revenues so pledged shall immediately upon receipt thereof be subject to the lien of such pledge without any physical delivery thereof or further action, and the lien of such pledge shall be valid and binding as against all parties having claims of any kind in tort, contract or otherwise against the University, irrespective of whether such parties have notice thereof.