Abstract
The U.S. spends over $125 billion a year in prevention of touch surface infections [1-5]. Copper cold spray coatings have been identified as having greater antimicrobial effectiveness than other additive methods...
Highlights
The U.S spends over $125 billion a year in prevention of touch surface infections [1,2,3,4,5]
This paper focuses on measurement of the differences in Cu ion release between conventional and nanomaterial Cu cold sprayed surfaces through corrosion testing, with supplemental surface chemistry and microstructure characterization
Nanomaterial Cu has smaller grain size and greater percent grain boundaries than conventional Cu, expected to lead to increased ion release which contributes to increased corrosion rate
Summary
The U.S spends over $125 billion a year in prevention of touch surface infections [1,2,3,4,5]. This paper builds off of prior work from the paper “Effectiveness of Nanomaterial Copper Cold Spray Surfaces on Inactivation of Influenza A Virus “, where copper cold spray antimicrobial properties are improved with the use of nanoagglomerate Cu powder [2]. There is a need to further qualify consolidated nanomaterial Cu material properties in relation to conventional Cu to better understand Cu kill-mechanisms. Further research is needed to determine the main mechanisms for copper ion uptake into the cell [4,9,10,11]. Research is being performed in the biology field to better understand microbial copper ion defense and uptake mechanisms, including mapping of internal signal pathways and external cell interactions that lead to selective ligand favorability [4,10,12,13,14]
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