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Color-Changing Ink Turns Clothes into Giant Chemical Sensors

Color-Changing Ink Turns Clothes into Giant Chemical Sensors Jillian Kramer A new color-changing ink could aid in health and environment monitoring—for example, allowing clothing that switches hues when exposed to sweat or a tapestry that shifts colors if carbon monoxide enters a room. The formulation could be printed on anything from a T-shirt to a…