Exploration of New Electroacupuncture Needle Material

Table 5

The absorbance (540 nm) from MTT assay and viability.

	Absorbance
	1st	2nd	3rd	Average	S.D.	Viability (average/control)
Ti-6Al-4V (0.20 mm)	0.337	0.34	0.336	0.338	0.002	*90.2%
PB (0.25 mm)	0.188	0.189	0.191	0.189	0.002	***50.58%
SS 304 Ni (0.20 mm)	0.289	0.295	0.29	0.291	0.003	**77.83%
SS 304 Ni (0.25 mm)	0.321	0.315	0.319	0.318	0.003	**85.049%
SS 304 Ni (0.30 mm)	0.304	0.306	0.304	0.305	0.001	**81.39%
SS 316 (0.20 mm)	0.362	0.361	0.355	0.36	0.004	95.99%
SS 316 (0.25 mm)	0.36	0.359	0.365	0.362	0.003	96.52%
SS 316 (0.30 mm)	0.358	0.357	0.362	0.359	0.003	95.9%
Control	0.376	0.374	0.373	0.374	0.002	100%

(*𝑃<0.05, **𝑃<0.01, ***𝑃<0.001 versus control).