Nanomaterials Based In-Line Sensor for Ionic Silver in Spacecraft Potable Water Systems

nbsp;The National Aeronautics and Space Administration (NASA) is seeking technologies for the in‚Äëline measurement of ionic silver (Ag+) in spacecraft potable water systems. Ionic silver is currently baselined as the biocide to replace iodine for microbial control with the goal of maintaining the water quality during human exploration missions. To address this need, InnoSensenbsp;LLC (ISL) is developing an innovative nanomaterial-enabled Silver Monitor (SilMonTM) in collaboration with Yale University. SilMon is based on: (1) customized recognition molecules (RMs), (2) ISLrsquo;s patented microelectronic sensor platform, (3) an in-line sensor array design, and (4) artificial intelligence (AI)-enabled recognition algorithm. In Phase I, ISL developed a SilMon working model and demonstrated feasibility of achieving its performance targets. In Phase II, ISL will focus on optimization and scale-up of SilMon following fine-tuning of performance through rigorous testing. AI-enabled package design, and construction of a SilMon prototype for testing under simulated spacecraft potable water systems are also planned. At the end of Phase II, a compact prototype will be delivered to NASA for further evaluation.nbsp;