Iowa State University Research Park Corporation

Exhibit 10.93

Iowa State University Research Park Corporation

0000 Xxxxx Xxxx Xxxxx, Xxxxx 0000

Xxxx, Xxxx 00000-0000

Memorandum of Agreement

DATE: January 2, 2014

TO: Xxxx Xxxxxxx

BioProtection Systems Corporation

0000 X. Xxxx Xxxxx, Xxxxx 0000

Xxxx, XX 00000

FROM: Xxxxxx X. Xxxxxx, President

RE: ADDENDUM TO THE LEASE BETWEEN ISU RESEARCH PARK CORPORATION AND BIOPROTECTION SYSTEMS CORPORATION DATED AUGUST 22, 2005.

The following information constitutes additions to the Lease Agreement between ISU Research Park Corporation (Landlord) and BioProtection Systems Corporation (Tenant). Upon signatures of appropriate representatives of Landlord and Tenant affixed to this Memorandum, this Memorandum becomes a part of that Lease Agreement dated August 22, 2005.

Tenant has requested and Landlord agrees to extend the lease for Suite 3900 (±3,147 rsf) in the following manner:

Sq. Ft. Sq. Ft. Monthly Monthly Annual Annual

Base Operating Base Operating Base Operating

Term Rents Rents Rents Rents Rents Rents

11/1/2013-

10/31/2014 $12.75 Actual $3,343.69 Actual $40,124.28 Actual

BioProtection Systems Corp.                                    Exhibit 10.93

Page Two

January 2, 2014

Tenant leases the space as is. Any modifications will be at the Tenant’s sole expense. Landlord agrees to release Tenant from this lease obligation upon Tenant’s move into another facility at the ISU Research Park. Gas & water usage, as well as utility costs for the HVAC system, will be prorated & invoiced monthly. Electricity is metered separately & is invoiced directly from the provider. Subject to the terms of this Memorandum, Tenant agrees that all terms and conditions of the August 22, 2005 Lease and those described in this Memorandum shall remain in force.

Please sign and return both originals to my office by January 3, 2014 if you concur with the above terms. We will then send a fully executed copy for your records.

AGREED

FOR FOR

BioProtection Systems Corp. ISU Research Park Corporation

/s/ Xxxx Xxxxxxx             /s/ Xxxxx X. Xxxxxx                

VP Finance________________     Director_________________________    

Title Title

1/2/2014_________________     1/4/2014__________________________    

Date Date