Nothing in this chapter shall restrict or limit the powers of the research foundation arising under any laws of this state. This chapter shall be construed to provide a complete additional and alternative method for doing the things authorized by this chapter and shall be regarded as supplemental and in addition to the powers conferred by other laws. Provided, however, that nothing contained in this chapter shall be construed to limit, restrict or modify the existing property rights and interests of the board of governors for higher education as set forth in chapter 59, title 16 of the Rhode Island general laws.