The nanowires, obtained under thermal evaporation process [77], are typically hundreds of nanometers in diameter and hundreds of micrometers long. Figure 7c,d shows the current response over time as glucose is added under 0.33% and 0.79% compressive strains, respectively. The current increases quickly after the addition of glucose. As the compressive strain becomes higher, this increase is enlarged, and the current level is also shifted to higher values. These improvements in current response indicate that the resolution and the signal to noise ratio of the sensor are enhanced by simply applying higher compressive strain to the nanowire