Maintaining the pluripotency of mouse embryonic stem cells on gold nanoparticle layers with nanoscale but not microscale surface roughness

Zhonglin Lyu,^a   Hongwei Wang,^a   Yanyun Wang,^a   Kaiguo Ding,^a   Huan Liu,^a   Lin Yuan,*^a (袁琳)  Xiujuan Shi,^a   Mengmeng Wang,^a   Yanwei Wang^a and   Hong Chen*^a  （陈红）