scholarly journals Dynamics of deterministically positioned single‐bond surface‐enhanced Raman scattering from DNA origami assembled in plasmonic nanogaps

2020 ◽  
Author(s):  
Rohit Chikkaraddy ◽  
Vladimir A Turek ◽  
Qianqi Lin ◽  
Jack Griffiths ◽  
Bart Nijs ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Dna Origami ◽  
Single Bond ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals DNA origami based assembly of gold nanoparticle dimers for surface-enhanced Raman scattering

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
Vivek V. Thacker ◽  
Lars O. Herrmann ◽  
Daniel O. Sigle ◽  
Tao Zhang ◽  
Tim Liedl ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Gold Nanoparticle ◽  
Surface Enhanced Raman Scattering ◽  
Dna Origami ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

DNA Origami Substrates for Highly Sensitive Surface-Enhanced Raman Scattering

2013 ◽  
Vol 4 (23) ◽  
pp. 4140-4145 ◽  
Author(s):  
Julia Prinz ◽  
Benjamin Schreiber ◽  
Lydia Olejko ◽  
Jana Oertel ◽  
Jenny Rackwitz ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Surface Enhanced Raman Scattering ◽  
Dna Origami ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Raman Enhancement of Nanoparticle Dimers Self-Assembled Using DNA Origami Nanotriangles

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1684
Author(s):  
Sergio Kogikoski ◽  
Kosti Tapio ◽  
Robert Edler von Zander ◽  
Peter Saalfrank ◽  
Ilko Bald
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Resonance Effect ◽  
Field Enhancement ◽  
Surface Enhanced Raman Scattering ◽  
Dna Origami ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Self Assembled

Surface-enhanced Raman scattering is a powerful approach to detect molecules at very low concentrations, even up to the single-molecule level. One important aspect of the materials used in such a technique is how much the signal is intensified, quantified by the enhancement factor (EF). Herein we obtained the EFs for gold nanoparticle dimers of 60 and 80 nm diameter, respectively, self-assembled using DNA origami nanotriangles. Cy5 and TAMRA were used as surface-enhanced Raman scattering (SERS) probes, which enable the observation of individual nanoparticles and dimers. EF distributions are determined at four distinct wavelengths based on the measurements of around 1000 individual dimer structures. The obtained results show that the EFs for the dimeric assemblies follow a log-normal distribution and are in the range of 106 at 633 nm and that the contribution of the molecular resonance effect to the EF is around 2, also showing that the plasmonic resonance is the main source of the observed signal. To support our studies, FDTD simulations of the nanoparticle’s electromagnetic field enhancement has been carried out, as well as calculations of the resonance Raman spectra of the dyes using DFT. We observe a very close agreement between the experimental EF distribution and the simulated values.

Hybrid Structures for Surface-Enhanced Raman Scattering: DNA Origami/Gold Nanoparticle Dimer/Graphene

Small ◽  
2016 ◽  
Vol 12 (39) ◽  
pp. 5458-5467 ◽  
Author(s):  
Julia Prinz ◽  
Aleksandar Matković ◽  
Jelena Pešić ◽  
Radoš Gajić ◽  
Ilko Bald
Keyword(s):  
Raman Scattering ◽  
Gold Nanoparticle ◽  
Surface Enhanced Raman Scattering ◽  
Dna Origami ◽  
Hybrid Structures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

scholarly journals Quantitative Single-Molecule Surface-Enhanced Raman Scattering by Optothermal Tuning of DNA Origami-Assembled Plasmonic Nanoantennas

ACS Nano ◽  
2016 ◽  
Vol 10 (11) ◽  
pp. 9809-9815 ◽  
Author(s):  
Sabrina Simoncelli ◽  
Eva-Maria Roller ◽  
Patrick Urban ◽  
Robert Schreiber ◽  
Andrew J. Turberfield ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Single Molecule ◽  
Surface Enhanced Raman Scattering ◽  
Dna Origami ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Plasmonic Nanoantennas ◽  
Molecule Surface
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