ArticleChemphyschem : a European journal of chemical physics and physical chemistry2011
Two-photon STED spectral determination for a new V-shaped organic fluorescent probe with efficient two-photon absorption.
Article in Chemphyschem : a European journal of chemical physics and physical chemistry, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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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.
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Who cites it
5 citing papers in PubMed, 18 citations in OpenAlex.
- Computer aided chemical design: using quantum chemical calculations to predict properties of a series of halochromic guaiazulene derivatives.Royal Society open science · 2016Article
- RGD-conjugated two-photon absorbing near-IR emitting fluorescent probes for tumor vasculature imaging.Organic & biomolecular chemistry · 2015Article
- Two-photon absorption and time-resolved stimulated emission depletion spectroscopy of a new fluorenyl derivative.Chemphyschem : a European journal of chemical physics and physical chemistry · 2012Article
- Near-infrared-emitting squaraine dyes with high 2PA cross-sections for multiphoton fluorescence imaging.ACS applied materials & interfaces · 2012Article
- Transient excited-state absorption and gain spectroscopy of a two-photon absorbing probe with efficient superfluorescent properties.The journal of physical chemistry. C, Nanomaterials and interfaces · 2012Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
Abstract
Two-photon stimulated emission depletion (STED) cross sections were determined over a broad spectral range for a novel two-photon absorbing organic molecule, representing the first such report. The synthesis, comprehensive linear photophysical, two-photon absorption (2PA), and stimulated emission properties of a new fluorene-based compound, (E)-2-{3-[2-(7-(diphenylamino)-9,9-diethyl-9H-fluoren-2-yl)vinyl]-5-methyl-4-oxocyclohexa-2,5-dienylidene} malononitrile (1), are presented. Linear spectral parameters, including excitation anisotropy and fluorescence lifetimes, were obtained over a broad range of organic solvents at room temperature. The degenerate two-photon absorption (2PA) spectrum of 1 was determined with a combination of the direct open-aperture Z-scan and relative two-photon-induced fluorescence methods using 1 kHz femtosecond excitation. The maximum value of the 2PA cross section ~1700 GM was observed in the main, long wavelength, one-photon absorption band. One- and two-photon stimulated emission spectra of 1 were obtained over a broad spectral range using a femtosecond pump-probe technique, resulting in relatively high two-photon stimulated emission depletion cross sections (~1200 GM). A potential application of 1 in bioimaging was demonstrated through one- and two-photon fluorescence microscopy images of HCT 116 cells incubated with micelle-encapsulated dye.
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What OpenQuestion holds
Registered trials
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.