(a) Private donations and pledges to a research endowment meet the criteria for designation as a qualified donation or qualified pledge under the following conditions:
(1) The donation or pledge is expressly and specifically restricted by the donor for one or more of the eligible uses designated in section six of this article; however, nothing in this subdivision prohibits a participating institution from designating unrestricted gifts or bequests, or any portion thereof, for use as a qualified donation;