Developed by the Royal Thai Airforce, the ZnO-NP-coated socks were trialled in a real-life setting by researchers at the Siriraj Hospital, Mahidol University, in Thailand.
The monarchy has long been considered sacrosanct in Thailand, and is protected by a law that makes defaming senior royals punishable by a prison term of three to 15 years.
The youth-led movement has suffered several blows this week, with scores arrested after demonstrators surrounded a royal motorcade and flashed a pro-democracy salute to Queen Suthida during a Wednesday protest.
