Section 262A.5 - Borrowing money and issuing bonds1. The board is authorized to borrow money under this chapter, and the board may issue and sell negotiable bonds to pay all or any part of the cost of carrying out any project at any institution and may refund and refinance bonds issued for any project or for refunding purposes at the same rate or at a higher or lower rate or rates of interest. Bonds issued under the provisions of this chapter shall be sold by said board at public sale on the basis of sealed proposals received pursuant to a notice specifying the time and place of sale and the amount of bonds to be sold which shall be published at least once not less than seven days prior to the date of sale in a newspaper published in the state of Iowa and having a general circulation in said state. The provisions of chapter 75 shall apply to bonds issued under authority contained in this chapter to the extent not in conflict with this chapter. Bonds issued to refund other bonds issued under the provisions of this chapter may either be sold in the manner hereinbefore specified and the proceeds thereof applied to the payment of the obligations being refunded, or the refunding bonds may be exchanged for and in payment and discharge of the obligations being refunded. The refunding bonds may be sold or exchanged in installments at different times or an entire issue or series may be sold or exchanged at one time. Any issue or series of refunding bonds may be exchanged in part or sold in parts in installments at different times or at one time. The refunding bonds may be sold or exchanged at any time on, before, or after the maturity of any of the outstanding bonds or other obligations to be refinanced thereby and may be issued for the purpose of refunding a like or greater principal amount of bonds, except that the principal amount of the refunding bonds may exceed the principal amount of the bonds to be refunded to the extent necessary to pay any premium due on the call of the bonds to be refunded or to fund interest in arrears or which is to become due.2. All bonds issued under the provisions of this chapter shall be payable solely and only from and shall be secured by an irrevocable pledge of a sufficient portion of the student fees and charges and institutional income received by the particular institution. All bonds issued under the provisions of this chapter shall have all the qualities of a negotiable investment security under the laws of this state.