Sökning: WFRF:(Albinsson Bo 1963) >
FRET enhancement cl...
FRET enhancement close to gold nanoparticles positioned in DNA origami constructs
-
- Aissaoui, Nesrine, 1983 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
-
- Moth-Poulsen, Kasper, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
-
- Käll, Mikael, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Applied Physics, Chalmers University of Technology, Gothenburg, Sweden
-
visa fler...
-
- Johansson, Peter, 1961 (författare)
- Örebro universitet,Institutionen för naturvetenskap och teknik,Örebro University
-
- Wilhelmsson, Marcus, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
-
- Albinsson, Bo, 1963 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Gothenburg, Sweden
-
visa färre...
-
(creator_code:org_t)
- 2017
- 2017
- Engelska.
-
Ingår i: Nanoscale. - Cambridge, United Kingdom : Royal Society of Chemistry (RSC). - 2040-3372 .- 2040-3364. ; 9:2, s. 673-683
- Relaterad länk:
-
http://publications.... (primary) (free)
-
visa fler...
-
https://pubs.rsc.org...
-
https://doi.org/10.1...
-
https://doi.org/10.1...
-
https://research.cha...
-
https://urn.kb.se/re...
-
visa färre...
Abstract
Ämnesord
Stäng
- Here we investigate the energy transfer rates of a Förster resonance energy transfer (FRET) pair positioned in close proximity to a 5 nm gold nanoparticle (AuNP) on a DNA origami construct. We study the distance dependence of the FRET rate by varying the location of the donor molecule, D, relative to the AuNP while maintaining a fixed location of the acceptor molecule, A. The presence of the AuNP induces an alteration in the spontaneous emission of the donor (including radiative and non-radiative rates) which is strongly dependent on the distance between the donor and AuNP surface. Simultaneously, the energy transfer rates are enhanced at shorter D-A (and D-AuNP) distances. Overall, in addition to the direct influence of the acceptor and AuNP on the donor decay there is also a significant increase in decay rate not explained by the sum of the two interactions. This leads to enhanced energy transfer between donor and acceptor in the presence of a 5 nm AuNP. We also demonstrate that the transfer rate in the three "particle" geometry (D + A + AuNP) depends approximately linearly on the transfer rate in the donor-AuNP system, suggesting the possibility to control FRET process with electric field induced by 5 nm AuNPs close to the donor fluorophore. It is concluded that DNA origami is a very versatile platform for studying interactions between molecules and plasmonic nanoparticles in general and FRET enhancement in particular.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Nyckelord
- Molecules
- Metal nanoparticles
- Gold
- Nanoparticles
- Energy transfer
- Electric fields
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas