A distance-controlled nanoparticle array using PEGylated ferritin

作者：He Chao^*; Uenuma Mutsunori; Okamoto Naofumi; Kamitake Hiroki; Ishikawa Yasuaki; Yamashita Ichiro; Uraoka Yukiharu

来源：Materials Research Express, 2014, 1(4): 045410.

DOI：10.1088/2053-1591/1/4/045410

• PEG-ferritin
• array
• nanoparticle

A distance-controlled nanoparticle (NP) array was investigated using a simple spin coating process. It was found that the separation distance of NPs was controlled at the nanoscale by using polyethylene glycols (PEGs). Ferritin was used to synthesize NPs and carry them to a substrate by using the different molecular weight of PEGs. In order to control the distance of the NPs, PEGs with molecular weights of 2k, 5k, 10k and 20k were modified on ferritin with 10mM ion strength and 0.01 mg ml(-1) ferritin concentration. The separated distances of NPs increased along with increase in PEG molecular weight.

• 出版日期2014-12