Correction to: Micro and Nano Syst Lett (2019) 7:14 https://doi.org/10.1186/s40486-019-0093-6
Unfrotunately, the original version of the article  contained an error in Funding section. It has been brought to our attention by the authors that the funding year was inadvertently published as 2019, instead it should be 2018. The correct Funding section is given below.
The research was supported by the 2018 scientific program funded by Jeju National University.