Observation of rotated-oriented attachment during the growth of Ag2S nanorods under mediation of protein.
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.
Yang
Lin
L
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
Yang
Huayan
H
Yang
Zongxian
Z
Cao
Yanxia
Y
Ma
Xiaoming
X
Lu
Zhansheng
Z
Zheng
Zhi
Z
D046529:Microscopy, Electron, Transmission; D043942:Nanotubes; D011506:Proteins / Q000737:chemistry*; D018030:Silver Compounds / Q000737:chemistry*
D011506:Proteins; D018030:Silver Compounds; C013251:silver sulfide