New conjugated organic dyes with various electron donors: One- and two-photon excited fluorescence, and bioimaging

Jin, Feng; Xu, Dongling; Zhu, Huizhi; Yan, Yan; Zheng, Jun; Zhang, Jun; Zhou, Hu; Wu, Jieying; Tian, Yupeng

doi:10.1016/j.dyepig.2014.04.032

Cited by 20 publications

(6 citation statements)

References 50 publications

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“…S2-3, it could be seen that the other two compounds had similar feature in absorption spectra. 24,25 To discuss the effect of solvents on the fluorescence spectrum, Lippert-Mataga plots 26 for T1-T3 were given in Fig. 1b) exhibited one emission peak located from 548 nm to 593 nm in different polarity solvents, which was assigned to the ICT emission.…”

Section: One-photon Absorption and Emission Propertiesmentioning

confidence: 99%

Branched triphenylamine-core compounds: aggregation induced two-photon absorption

et al. 2016

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Three branched molecules (T1-T3) were synthesized through simple step to realize or enhance 2PA in aggregates. Spectra data showed that one-and two-branched molecule (T1 and T2) owned the remarkable AIE properties, which came from the formation of J-aggregation because of their partial planarization in aggregation state. SEM and DLS illustrated that the ordered aggregation and the small particle size had important influence on fluorescence emission. The open aperture Zscan experiments showed that T1 and T2 possessed excellent 2PA properties under aggregation state. The largest 2PA cross section was 8314 GM for T2 in aggregates, which was higher about 13-fold than that in pure solution. All the results displayed that the compounds could obtain the outstanding 2PA performance by adjusting their structure rationally or changing state, which could provide reference for preparing the strong 2PA compounds.Three branched dipole molecules (T1-T3) were designed and synthesized. Spectra data showed that one-and two-branched molecule (T1 and T2) owned remarkable AIE properties, which came from the formation of J-aggregation because of their partial planarization in aggregation state. The open aperture Z-scan experiments showed that T1 and T2 possessed excellent 2PA properties under aggregation state and the largest 2PA cross section was 8314 GM for T2 in aggregates, which was higher about 13-fold than that in pure DMF solution.

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Section: One-photon Absorption and Emission Propertiesmentioning

confidence: 99%

Branched triphenylamine-core compounds: aggregation induced two-photon absorption

et al. 2016

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“…As shown in Fig. 4, 1 and 2 both display good TPA activity in the range of 720e920 nm, and the optimal excitation wavelengths are 820 nm, which are higher than that (800 nm) of the free ligand have been reported [13]. The TPEF peak positions of 1 and 2 also show a slight red-shift compared to that of free L, which may arise from the different electronic structures of the dyes and the free L. Figs.…”

Section: One-photon Excited Fluorescence (Opef)mentioning

confidence: 84%

“…Scheme 1 depicts the synthetic pathways we used to prepare dyes 1 and 2. The intermediates and L were synthesized according to previously reported procedures [13]. IR spectra were recorded with a Nicolet FT-IR NEXUS 870 spectrometer (KBr discs) in the 4000e400 cm À1 region.…”

Section: General Proceduresmentioning

confidence: 99%

Crystal structures, two-photon excited fluorescence and bioimaging of Zn(II) complexes based on an extended 2,2′-bipyridine ligand

Jin

Shu

et al. 2015

Dyes and Pigments

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“…Besides the highlights of biocompatibility, fluorescent organic nanomaterials (FONs) have advantages over fluorescent inorganic nanomaterials in the designability of structure and functions. [30][31][32] Zhou et al created six new dyes adopted 2, 2-bipyridyl as electron acceptor and six other conjugated compounds as electron donors, which were promising in cell imaging as low toxicity [33]. Jang et al prepared conjugated polymer dots using poly (diphenylacetylene) derivatives and commercial conjugated polymers following specific molecular design rules [34].…”

Section: Introductionmentioning

confidence: 99%

Facile synthesis of polymeric fluorescent organic nanoparticles based on the self-polymerization of dopamine for biological imaging

Shi

Jiang

Liu

et al. 2017

Materials Science and Engineering: C

151

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Polymeric fluorescent organic nanoparticles (polymer-FONs) have raised considerable research attention for biomedical applications owing to their advantages as compared with fluorescent inorganic nanoparticles and small organic molecules. In this study, we presented an efficient, facile and environment-friendly strategy to produce polymer-FONs, which relied on the self-polymerization of dopamine and polyethyleneimine (PEI) in rather mild conditions. To obtain the final polymer-FONs, aldehyde group-containing copolymers (named as poly(UA-co-PEGMA)) were synthesized by reversible addition-fragmentation chain-transfer polymerization using polyethylene glycol methyl ether methacrylate (PEGMA) and 1-undecen-10-al (UA) as monomers. The dopamine was conjugated onto poly(UA-co-PEGMA) through a multicomponent reaction between UA and dopamine to obtain poly(UA-co-PEGMA)-DA, which was further utilized for preparation of polymer-FONs through self-polymerization of dopamine and PEI. H nuclear magnetic resonance, Fourier transform infrared spectroscopy, transmission electron microscopy and fluorescence spectroscopy were employed to characterize the structure, morphology, compositions and optical properties of these polymer-FONs. Cell viability and cell uptake behavior results suggested that these polymer-FONs possess good biocompatibility and can be potentially utilized for biomedical applications. More importantly, the method can be also applied to fabricate many other multifunctional polymer-FONs with great potential for biomedical applications.

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New conjugated organic dyes with various electron donors: One- and two-photon excited fluorescence, and bioimaging

Cited by 20 publications

References 50 publications

Branched triphenylamine-core compounds: aggregation induced two-photon absorption

Branched triphenylamine-core compounds: aggregation induced two-photon absorption

Crystal structures, two-photon excited fluorescence and bioimaging of Zn(II) complexes based on an extended 2,2′-bipyridine ligand

Facile synthesis of polymeric fluorescent organic nanoparticles based on the self-polymerization of dopamine for biological imaging

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