Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Association dynamics and linear and nonlinear optical properties of an N-acetylaladanamide probe in a POPC membrane
KTH, Skolan för bioteknologi (BIO), Teoretisk kemi och biologi.ORCID-id: 0000-0003-0185-5724
KTH, Skolan för datavetenskap och kommunikation (CSC), Centra, Parallelldatorcentrum, PDC.
KTH, Skolan för bioteknologi (BIO), Teoretisk kemi och biologi.ORCID-id: 0000-0003-2729-0290
epartment of Physics, Chemistry and Pharmacy, University of Southern Denmark.
Vise andre og tillknytning
2013 (engelsk)Inngår i: Journal of the American Chemical Society, ISSN 0002-7863, E-ISSN 1520-5126, Vol. 135, nr 36, s. 13590-13597Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Along with the growing evidence that relates membrane abnormalities to various diseases, biological membranes have been acknowledged as targets for therapy. Any such abnormality in the membrane structure alters the membrane potential which in principle can be captured by measuring properties of specific optical probes. There exists by now many molecular probes with absorption and fluorescence properties that are sensitive to local membrane structure and to the membrane potential. To suggest new high-performance optical probes for membrane-potential imaging it is important to understand in detail the membrane-induced structural changes in the probe, the membrane association dynamics of the probe, and its membrane-specific optical properties. To contribute to this effort, we here study an optical probe, N-acetylaladanamide (NAAA), in the presence of a POPC lipid bilayer using a multiscale integrated approach to assess the probe structure, dynamics, and optical properties in its membrane-bound status and in water solvent. We find that the probe eventually assimilates into the membrane with a specific orientation where the hydrophobic part of the probe is buried inside the lipid bilayer, while the hydrophilic part is exposed to the water solvent. The computed absorption maximum is red-shifted when compared to the gas phase. The computations of the two-photon absorption and second harmonic generation cross sections of the NAAA probe in its membrane-bound state which is of its first kind in the literature suggest that this probe can be used for imaging the membrane potential using nonlinear optical microscopy.

sted, utgiver, år, opplag, sider
2013. Vol. 135, nr 36, s. 13590-13597
Emneord [en]
Fluorescence properties, Integrated approach, Linear and nonlinear optical properties, Membrane association, Membrane potentials, Nonlinear optical microscopy, Specific orientation, Two-photon absorptions
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-126806DOI: 10.1021/ja407326nISI: 000330163200058PubMedID: 23951997Scopus ID: 2-s2.0-84884189570OAI: oai:DiVA.org:kth-126806DiVA, id: diva2:642542
Forskningsfinansiär
Swedish e‐Science Research Center
Merknad

QC 20140224

Tilgjengelig fra: 2013-08-22 Laget: 2013-08-22 Sist oppdatert: 2024-03-15bibliografisk kontrollert

Open Access i DiVA

Fulltekst mangler i DiVA

Andre lenker

Forlagets fulltekstPubMedScopus

Person

Natarajan Arul, MuruganApostolov, Rossen PavlovRinkevicius, ZilvinasLindahl, ErikÅgren, Hans

Søk i DiVA

Av forfatter/redaktør
Natarajan Arul, MuruganApostolov, Rossen PavlovRinkevicius, ZilvinasKongsted, JacobLindahl, ErikÅgren, Hans
Av organisasjonen
I samme tidsskrift
Journal of the American Chemical Society

Søk utenfor DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric

doi
pubmed
urn-nbn
Totalt: 367 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf