title: Enhanced Raman signals from switchable nanoparticle probes.
abstract: We demonstrate here a DNA-based conformationally switchable nanodumbell structure that modulates the interparticle distance between two gold-silver core-shell nanoparticles to induce significant changes in the SERS signal.
authors: Department of Nanoengineering and Materials Science Program, University of California-San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
authors: Phyllis F
authors: PF
authors: Xu
authors: Ju Hun
authors: JH
authors: Lee
authors: Ke
authors: K
authors: Ma
authors: Chulmin
authors: C
authors: Choi
authors: Sungho
authors: S
authors: Jin
authors: Joseph
authors: J
authors: Wang
authors: Jennifer N
authors: JN
authors: Cha
mesh_terms: D002232:Carbocyanines / Q000737:chemistry; D004247:DNA / Q000737:chemistry; D006046:Gold / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D009690:Nucleic Acid Conformation; D010316:Particle Size; D012834:Silver / Q000737:chemistry; D013059:Spectrum Analysis, Raman
chemical_list: D002232:Carbocyanines; C089187:cyanine dye 3; D012834:Silver; D006046:Gold; D004247:DNA