Lin, Shang-Chi
Hsu, Min-Yen
Kuan, Chen-Meng
Wang, Hsi-Kai
Chang, Chia-Ling
Tseng, Fan-Gang
Cheng, Chao-Min
Article History
Received: 30 June 2014
Accepted: 17 October 2014
First Online: 13 November 2014
Competing interests
: S.C.L., C.M.K., F.G.T. and C.M.C. are inventors of a patent (patent No.:US 8691162 B1) owned by National Tsing Hua University on the basis of the work reported in this paper. S.C.L., C.M.K., F.G.T. and C.M.C. have a patent pending in Taiwan and China based on the work reported in this paper. H.K.W., M.Y.H. and C.L.C. declare no potential conflict of interest.