ArticleChemphyschem : a European journal of chemical physics and physical chemistry2012
Two-photon absorption and time-resolved stimulated emission depletion spectroscopy of a new fluorenyl derivative.
Article in Chemphyschem : a European journal of chemical physics and physical chemistry, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 22 citations in OpenAlex.
- Fluorenyl-Loaded Quatsome Nanostructured Fluorescent Probes.ACS omega · 2017Article
- 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
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
Abstract
The synthesis, comprehensive linear photophysical characterization, two-photon absorption (2PA), steady-state and time-resolved stimulated emission depletion properties of a new fluorene derivative, (E)-1-(2-(di-p-tolylamino)-9,9-diethyl-9H-fluoren-7-yl)-3-(thiophen-2-yl)prop-2-en-1-one (1), are reported. The primary linear spectral properties, including excitation anisotropy, fluorescence lifetimes, and photostability, were investigated in a number of aprotic solvents at room temperature. The degenerate 2PA spectra of 1 were obtained with open-aperture Z-scan and two-photon induced fluorescence methods, using a 1 kHz femtosecond laser system, and maximum 2PA cross-sections of ∼400-600 GM were obtained. The nature of the electronic absorption processes in 1 was investigated by DFT-based quantum chemical methods implemented in the Gaussian 09 program. The one- and two-photon stimulated emission spectra of 1 were measured over a broad spectral range using a femtosecond pump-probe-based fluorescence quenching technique, while a new methodology for time-resolved fluorescence emission spectroscopy is proposed. An effective application of 1 in fluorescence bioimaging was demonstrated by means of one- and two-photon fluorescence microscopy images of HCT 116 cells containing dye encapsulated micelles.
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Registered trials
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