Microarrays of OLEDs are used to optically control the locomotion of individual cells in real time. Close contact (<2 μm) between OLEDs and the aqueous cell culture medium is facilitated by high-performance thin-film encapsulation. This work paves the way for using OLED light sources to control and study neuronal activity and cell signaling with extreme spatial and temporal resolution.
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Steude et al. (2015) studied this question.
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