Jae-Hak ChoiKang Moo HuhJournal of Industrial & Engineering ChemistryCell patterning on a poly(N-vinyl pyrrolidone)-patterned polystyrene substrate by using ion implantation[J] . Mi-Young Ahn,In-Tae Hwang,Chan-Hee Jung,Young-Chang Nho,Jae-Hak Choi,Kang Moo Huh.Journal of Industrial and ...