title: Observation of rotated-oriented attachment during the growth of Ag2S nanorods under mediation of protein.
abstract: In this study, protein-conjugated Ag2S nanorods were prepared in aqueous solution, and high-resolution transmission electron microscopy (HRTEM) was used to track the whole process of the nanorod growth. Our results showed that the final products were formed via two-step oriented attachment, that is, particle-particle and rod-rod oriented. More interestingly, before oriented attachment, the nanoparticles or nanorods attached without sharing the same lattice plane; they could then rotate to a perfect array and fuse together by eliminating the two high energy surfaces. On the basis of the calculation of surface energy, two-step attachments and rotations were brought forward, and the role of protein in the forming process of nanorods was discussed.
authors.affiliation: College of Chemistry and Environmental Science and Co-constructing Key Laboratory for Cell Differentiation Regulation, Henan Normal University, Xinxiang 453007, People's Republic of China. yanglin1819@163.com
authors.forename: Lin
authors.initials: L
authors.lastname: Yang
authors.forename: Huayan
authors.initials: H
authors.lastname: Yang
authors.forename: Zongxian
authors.initials: Z
authors.lastname: Yang
authors.forename: Yanxia
authors.initials: Y
authors.lastname: Cao
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Ma
authors.forename: Zhansheng
authors.initials: Z
authors.lastname: Lu
authors.forename: Zhi
authors.initials: Z
authors.lastname: Zheng
mesh_terms: D046529:Microscopy, Electron, Transmission; D043942:Nanotubes; D011506:Proteins / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*
chemical_list: D011506:Proteins; D018030:Silver Compounds; C013251:silver sulfide