Anfiro, which has licensed Purdue and Notre Dame research, aims to complete a prototype of its polymer-based water treatment system by 2018.

Anfiro, a US-based water treatment developer based on Purdue University and University of Notre Dame research, has closed a $1.1m seed round that included Purdue’s tech transfer office Purdue Research Foundation.

The round was led by the Prime Coalition, a charitable syndicate of various family offices, while Purdue Research Foundation participated through its Foundry Investment Fund.

Massachusetts state-owned development agency Massachusetts Clean Energy Centre (MassCEC) also provided money, as did an unnamed private backer.

Founded in 2014, Anfiro is developing…