Self-assembly of luminescent Ag nanocluster-functionalized nanowires.
Two different methods to self-assemble red- or yellow-luminescent nucleic acids-stabilized Ag nanoclusters (NCs) nanowires are presented. By one method, the autonomous hybridization-polymerization process between two nucleic acids leads to polymer chains consisting of sequence-specific loops for the stabilization of the red- or yellow-emitting Ag NCs. By the other method, the nucleic acid-triggered hybridization chain reaction (HCR) involving the cross-opening of two functional hairpins leads to sequence-specific DNA loops and a nucleic acid scaffold that stabilize the respective red- or yellow-emitting Ag NCs. The micrometer-long luminescent Ag NC-functionalized nanowires are imaged by AFM and confocal microscopy.
Institute of Chemistry, Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem , Jerusalem 91904, Israel.
Ron
R
Orbach
Weiwei
W
Guo
Fuan
F
Wang
Oleg
O
Lioubashevski
Itamar
I
Willner
D004247:DNA / Q000138:chemical synthesis* / Q000737:chemistry; D005470:Fluorometry; D049449:Luminescence; D053768:Metal Nanoparticles / Q000737:chemistry*; D053770:Nanowires / Q000737:chemistry*; D009693:Nucleic Acid Hybridization; D010316:Particle Size; D058105:Polymerization; D012834:Silver / Q000737:chemistry*; D013499:Surface Properties
D012834:Silver; D004247:DNA