A deep blue organic light-emitting diode (OLED) developed by researchers at Science Tokyo operates on just a single 1.5 V, overcoming the high-voltage and color-purity problems that have long limited ...
At-home light-emitting diode (LED) devices are effective for treating acne, according to a research letter published online March 5 in JAMA Dermatology. Sherry Ershadi and John S. Barbieri, M.D., from ...