This color-changing nail polish could prevent sexual assaults

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Online dating has made it easier for complete strangers with shared interests to find each other, but a lack of quality control can mean the services are unfortunately used by criminals, facilitating date rapes. Innovations such as — the personal drug detection kit — have already aimed to arm women with the ability to detect date rape substances in their drinks. Now Undercover Colors is a startup that's aiming to develop a nail polish that changes color when it comes into contact with known date rape drugs. Developed by a group of male North Carolina State University chemistry students,…

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