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. 2014 Jan 30;2:2. doi: 10.3389/fbioe.2014.00002

Figure 1.

Figure 1

The PLANTOID robot. It integrates two roots that implement the elongation movement and the bending motion with a sensorized tip, respectively. In this prototype, the tip connected to the bending root integrates sensors for touch, humidity, temperature, and gravity. The branches integrate artificial leaves based on PEDOT:PSS material that move in response to changes in environmental humidity.