Figure 4: IPA selective solvatochromic sensor. | Nature Communications

Figure 4: IPA selective solvatochromic sensor.

From: A protective layer approach to solvatochromic sensors

Figure 4

(a–c) Photographs of the solvent-exposed unprotected (a), single-layer protected (PAA/PDA) (b) and double-layer protected (PVP/PAA/PDA) (c) TCDA-derived PDA films. Photographs were taken 1 min after dropping each solvent on the top of the film.

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