Science and Research
Copper Efficacy Testing : TopoGEN, Inc. June 2022
ISSUED BY
TopoGEN, Inc.
REPRESENTATIVE
Mark Muller PhD, Founder and CEO
mark@topogen.com
The anti-pathogenic properties of copper
Copper is a metal that occurs naturally throughout the environment, in rocks, soil, water, and air. It is an essential element in animals and plants, which means it is necessary for life; thus, humans must absorb some copper from the environment.
Copper is used to make many different kinds of products like wire, plumbing pipes, and sheet metal. It is combined with other metals to make brass and bronze pipes and faucets. Copper compounds are commonly used in agriculture to treat plant diseases like mildew, for water treatment and, as preservatives for wood, leather, and fabrics.
Copper, however, is a malleable metal and for a variety of reasons would generally not be appropriate as biocidal protective shields for an outsole surface. To harness the bactericidal benefits of copper on shoes, Armor29™ spent over four years of R&D, prototyping, testing and validating a process to create a successful, patented and viable product. The advantages of copper as a safe and effective product in blocking person-to-person pathogenic transmission are numerous:
Widespread use of copper as a bactericidal agent does not contribute to the widespread problem of antibiotic resistance.
Copper is generally considered to be a bio-safe agent for use as a wearable.
Copper does not break down like chemical or biochemical agents (antibiotics) that have a limited half life (can be as short as 30 min in biological systems).
Copper, as an inert solid surface, does not slough off to any appreciable extent and is clearly not a biohazard to the people (as noted, humans actually need small amounts of dietary copper).
Copper works equally as well when oxidized or tarnished (green hue) versus shiny.
Copper is especially effective at killing SARS-CoV-2 (etiologic agent for Covid-19) and this work has been recently published in a top medical journal.
All bacterial pathogens tested to date are susceptible to copper mediated toxicity and it is reasonable to presume that most if not all bacterial pathogens will respond similarly.
Pathogenic yeast species are also growth inhibited by copper (such as candida species that are drug resistant). These pathogens have recently been shown to be a serious health threat in Hospital Acquired infections (or HAI).
Enteric viruses are inactivated by copper as recently proposed using a bacteriophage MS2 as a model.12
Copper also has been proposed to be safe for use in preventing bacterial growth in drinking water.12 Copper inactivates MS2 under controlled conditions at doses between 0.3 and 3 mg/L. Although requiring longer contact times than conventional disinfectants, it is a candidate for improving the safety of stored drinking water.
The mechanism of bactericidal action of copper is well understood. After exposure of the target pathogen to copper ions, membranes become damaged and ROS (Reactive Oxygen Species) form that cause further cell damage over time and ultimately induce DNA destruction, thereby inactivating the bacterium. It should be noted that copper ions can be transported to neighboring pathogens in the biofilm and can toxify bacterial ‘neighbors’ as well.
Copper in low doses is harmless and as noted, small amounts of copper are essential in our diets.
Copper is readily available and a cost-effective reagent for the applications proposed.