DNA origami-directed, discrete three-dimensional plasmonic tetrahedron nanoarchitectures with tailored optical chirality.
Discrete, three-dimensional (3D) gold nanoparticle (AuNP) tetrahedron nanoarchitectures are successfully self-assembled with DNA origami as template with high purity (>85%). A distinct plasmonic chiral response is experimentally observed from the AuNP tetrahedron nanoarchitectures and appears in a configuration-dependent manner. The chiral optical properties are then rationally engineered by modifying the structural parameters including the AuNP size and interparticle distance. Theoretical study of the AuNP tetrahedron nanoarchitectures shows the dependence of the chiral optical property on the AuNP size and interparticle distance, consistent with the ensemble averaged measurements.
College of Biological Science and Engineering, Fuzhou University , Fuzhou 350108 China.
Gaole
G
Dai
Xuxing
X
Lu
Zhong
Z
Chen
Chun
C
Meng
Weihai
W
Ni
Qiangbin
Q
Wang
D002942:Circular Dichroism / Q000295:instrumentation; D004247:DNA / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D008027:Light; D053768:Metal Nanoparticles / Q000737:chemistry*
D006046:Gold; D004247:DNA