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Associate Professor Liu Zheng (left) holding the nanotech mask with Professor Lam Yeng Ming holding the copper nanoparticles in a bottle. - NTU SINGAPORE (The Straits Times/ANN): Scientists from the Nanyang Technological University (NTU) have developed a reusable mask that is able to kill bacteria droplets within 45 seconds and filter 99.9 per cent of bacteria, viruses and haze particles - better than the medical-grade N95 masks used in hospitals. N95 masks are able to prevent around 95 per cent of aerosolised droplets and particulate matter of around 0.3 microns in size from entering them. The filter of the NTU-developed mask is coated with a layer of copper oxide nanoparticles, which damage the DNA of important cell structures in the bacteria, causing them to die, said Professor Lam Yeng Ming, chair of NTU s School of Materials Science and Engineering, who developed the antimicrobial coating. ....
Prozone Intu Properties Ltd, Tide Water Oil Co (I) Ltd, The Hi-Tech Gears Ltd and Om Infra Ltd are among the other gainers in the BSE s B group today, 28 May 2021. Prozone Intu Properties Ltd, Tide Water Oil Co (I) Ltd, The Hi-Tech Gears Ltd and Om Infra Ltd are among the other gainers in the BSE s B group today, 28 May 2021. DB (International) Stock Brokers Ltd spiked 19.93% to Rs 14.44 at 12:03 IST. The stock was the biggest gainer in the BSE s B group. On the BSE, 35356 shares were traded on the counter so far as against the average daily volumes of 1672 shares in the past one month. ....