Scientists have redesigned a key component of a widely used CRISPR-based gene-editing tool, called Cas9, to be thousands of times less likely to target the wrong stretch of DNA while remaining just as efficient as the original version, making it potentially much safer.
New anticounterfeiting technology can turn a smartphone into a lifesaver by simply taking a picture of a cyberphysical watermark and confirming if the medication is real or not.
