Optimization of Polymeric Microneedle Electrode for High-Quality EMG recording.

This paper proposes the optimization of polyimide microneedle electrode using a 3D print double molding fabrication. Various shapes (circle, triangle, square, star, and hexagon) of microneedles are investigated by changing printing angles and double molding process. Aspect ratio, insertion force, and break point of the fabricated microneedles are investigated to maximize penetration capacity.

Effect of salinity stress on phenolic compounds and carotenoids in buckwheat (Fagopyrum esculentum M.) sprout.

The effect of salinity stress on the nutritional quality of buckwheat sprouts cultivated for 1, 3, 5, and 7d was investigated by analysis of the antioxidant activity and levels of phenolic compounds and carotenoids. Treatment with various concentrations of NaCl (10, 50, 100, and 200mM) resulted in an increase in the amount of phenolic compounds and carotenoids in the sprouts compared with the control (0mM). The phenolic contents of sprouts treated with 10, 50, and 100mM after 7d of cultivation were 57%, 121%, and 153%, respectively, higher than that of the control (0mM NaCl).