Evidence map›Paper›PMID 29449923›Full record

ArticleChemical science2015

Photoinduced dynamics of a cyanine dye: parallel pathways of non-radiative deactivation involving multiple excited-state twisted transients.

Srigokul Upadhyayula, Vicente Nuñez, Eli M Espinoza, Jillian M Larsen, Duoduo Bao, Dewen Shi, Jenny T Mac, Bahman Anvari, Valentine I Vullev

Erratum issuedAbstract read
In one paragraph

Article in Chemical science, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Making Nitronaphthalene Fluoresce.The journal of physical chemistry letters · 2021
    Article
  6. Article
  7. Article
  8. Article
  9. Multifaceted aspects of charge transfer.Physical chemistry chemical physics : PCCP · 2020
    Article
  10. Multicomponent Bioluminescence Imaging with a π-Extended Luciferin.Journal of the American Chemical Society · 2020
    Article
  11. Article
  12. Article
  13. Ultrafast Dynamics of Charge Transfer and Photochemical Reactions in Solar Energy Conversion.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2018
    Review
  14. Article
  15. Article
  16. Article
  17. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Srigokul UpadhyayulaDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.
Vicente NuñezDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.
Eli M EspinozaDepartment of Chemistry , University of California , Riverside , CA 92521 , USA.
Jillian M LarsenDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.
Duoduo BaoDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.
Dewen ShiDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.
Jenny T MacDepartment of Biochemistry , University of California , Riverside , CA 92521 , USA.
Bahman AnvariDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.
Valentine I VullevDepartment of Bioengineering , University of California , Riverside , CA 92521 , USA . Email: vullev@ucr.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyanine dyes are broadly used for fluorescence imaging and other photonic applications. 3,3'-Diethylthiacyanine (THIA) is a cyanine dye composed of two identical aromatic heterocyclic moieties linked with a single methine, -CH[double bond, length as m-dash]. The torsional degrees of freedom around the methine bonds provide routes for non-radiative decay, responsible for the inherently low fluorescence quantum yields. Using transient absorption spectroscopy, we determined that upon photoexcitation, the excited state relaxes along two parallel pathways producing three excited-state transients that undergo internal conversion to the ground state. The media viscosity impedes the molecular modes of ring rotation and preferentially affects one of the pathways of non-radiative decay, exerting a dominant effect on the emission properties of THIA. Concurrently, the polarity affects the energy of the transients involved in the decay pathways and further modulates the kinetics of non-radiative deactivation.

Identifiers

PMID29449923
PMCPMC5701728

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.