The Centers for Disease Control and Prevention are recommending Americans wear masks in public. The agency revisited earlier guidelines that said people didn’t need to wear masks after more evidence ...

07:00, Sun, Jun 21, 2020 Updated: 07:03, Sun, Jun 21, 2020 A cloth face covering should cover your mouth and nose while allowing you to breathe comfortably, and a pleated mask stretches enough to do ...

FROM Monday June 15 face coverings will become mandatory on public transport in England. The new rules will apply on tubes, trains buses, ferries and planes but people will not have to wear them ...

I received many inquiries from readers after I wrote about making masks at home with my mother Sheila Khoo, 68, a sewing enthusiast who makes cloth masks to give to friends. She uses mostly 100 per ...

Here’s how to do it. By Farhad Manjoo Opinion Columnist It shouldn’t have come to this, but here we are. The world is running out of face masks for health care workers, which is one reason American ...

Through microphase separation, block copolymers (BCPs) can self-assemble into highly uniform, chemically distinct, periodic domains with dimensions and periods at scales of 3–200 nm 1,2 that are ...

The self-assembly of block copolymer thin films can generate dense nanoscale patterns over large areas 1,2,3,4,5,6,7,8. When directed by a sparse topographic or chemical template, the block copolymers ...