From as early as May last year when the COVID-19 pandemic was just unfolding, The Straits Times reported that scientists at the Australian Centre for Disease Preparedness found that COVID-19 viruses could survive for up to 28 days on phone screens and bank notes.
Given that these surfaces are areas that we come into contact with very often, it is no wonder that antimicrobial coatings started to become all the rage. But how exactly do antimicrobial coatings work? Do they actually kill viruses as they claim, or are they just another marketing gimmick?
Antimicrobial coatings are typically colourless, sprayable substances that have to be reapplied every three to four months. How do antimicrobial coatings work? The development of antimicrobial coatings, or self-disinfecting coatings, have been around a decade prior to the pandemic. Hospitals and other institutions that house vulnerable individuals have used antimicrobial coatings on their equipment and common areas for a long time now. More recently, antimicrobial coatings have been applied onto high-touch areas in public.
Antimicrobial coatings denature proteins of viruses and attack their protective fat layer. By doing so, viruses fall apart and effectively lose their infectious properties or ‘die’ altogether. According to a study in 2019 by researchers from the University of Arizona, antimicrobial coatings reduce hospital-acquired infections by 36%.
Antimicrobial coatings can be applied to homes. But you will probably have to contact a handyman or supplier who has the relevant materials to help make your home virus-proof. Nowadays, it is also common to find paint and tiles incorporated with antimicrobial properties nowadays. But if you don’t want to go out of your way to source for antimicrobial coatings, you might be pleased to find that some natural materials possess antibacterial properties, too.
Before you start spraying your entire home with an antimicrobial coating, make sure to be aware of these antibacterial surface alternatives that you can use to make your home safer.
Viscose is a type of textile made from wood cellulose derived from bamboo. Studies have shown that bacteria has the hardest time proliferating on bamboo surfaces compared to other textiles such as polyester and nylon. This is why bamboo furniture and pillows are recommended for those who sweat easily and experience odours as a result.
Copper and copper alloys have been used since ancient times throughout the world to reduce the spread of infections. Ions on copper surfaces inhibit cell respiration and destroy the DNA of viruses. Its antimicrobial properties make it a great material for doorknobs, handles, and even kitchenware. Consider installing copper fixtures in areas that typically experience high bacterial growth, such as the bathroom and the kitchen.
One of the hardest materials on earth, engineered quartz is a popular material used for kitchen countertops thanks to its ability to withstand harsh chopping and cleaning. Not only does the surface of engineered quartz prevent the growth of the dreaded COVID-19, but it is also suitable for the kitchen because it stops other common food pathogens such as E. Coli in its tracks.
While not inherently antibacterial, non-porous surfaces such as marble and granite are easy to disinfect. Their impervious nature prevents any bacteria from seeping beneath the surface, allowing you to clean your tables or countertops completely with just a cloth and some disinfectant.
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