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Stamp Sand Along The Keweenaw Shoreline: Solid And Dissolved Copper & Effects On Biota, Gary Swain
Stamp Sand Along The Keweenaw Shoreline: Solid And Dissolved Copper & Effects On Biota, Gary Swain
Dissertations, Master's Theses and Master's Reports
Stamps sand refers to the regional colloquialism for the mine-tailing byproducts generated from copper (Cu) ore processing mills located in Michigan’s Keweenaw Peninsula. In the Keweenaw region, copper extracted from basalt ores resulted in a legacy of 100’s of millions of metric tonnes of stamp sand wastes, including 22.7 million metric tonnes at Gay, MI. Trace amounts of Cu persist in stamp sands and when leached have toxic enough concentrations to influence aquatic biota. To better understand stamp sands’ properties, we ran experiments and compiled data about the solid and dissolved phases of Cu. Solid phase concentration of Cu was …
Virus Inactivation By Novel Virucidal Materials, Sneha Singh
Virus Inactivation By Novel Virucidal Materials, Sneha Singh
Dissertations, Master's Theses and Master's Reports
The development of virucidal coatings to inactivate a broad spectrum of viruses has gained popularity. Antiviral coating of personal protective equipment such as facial coverings can reduce the accumulation of viral load and mitigate transmission of airborne illnesses, which occur primarily through direct contact with respiratory aerosols or droplets carrying infectious viruses. Moreover, modification of PPE to inactivate viruses upon contact improves their reusability and reduces waste. Coating high frequency touch surfaces with similar virucidal coatings can reduce the risk of disease transmission associated with contaminated surfaces. This study explores the development of three novel virucidal materials to control the …