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. 2022 Sep 9;13:5316. doi: 10.1038/s41467-022-33086-2

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Fig. 1 — a Contact-separation working mode of the L-L TENG. b Optical images of DEX droplet and dyed PEG droplet coming into contact and separating. c Images of dyed DEX droplet dripped into PEG to form an IAAI. d Optical images of a dyed deionized water droplet dripped into undyed deionized water without the formation of an IAAI.