Combinatorial Strategies in Fluorescent Probe Development

Vendrell, Marc; Zhai, Duanting; Er, Jun Cheng; Chang, Young‐Tae

doi:10.1021/cr200355j

Cited by 617 publications

(348 citation statements)

References 296 publications

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“…Also, radiation with energy above 650 nm is expected to cause little photodamage to biological samples and is capable of deep tissue penetration, thus such emitters can nd application in bio-imaging and bio-sensing. 1 On the other hand, panchromatic chromophores, with absorption extended toward NIR are eagerly applied in organic photovoltaics. 2 Most of pconjugated systems cover only the visible region of the solar spectrum.…”

Section: Introductionmentioning

confidence: 99%

Systematic elongation of thienyl linkers and their effect on optical and electrochemical properties in carbazole–BODIPY donor–acceptor systems

et al. 2016

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(2016). Systematic elongation of thienyl linkers and their effect on optical and electrochemical properties in carbazole-BODIPY donor-acceptor systems. RSC Advances: an international journal to further the chemical sciences, 6 (43), 36500-36509.Systematic elongation of thienyl linkers and their effect on optical and electrochemical properties in carbazole-BODIPY donor-acceptor systems Abstract Synthesis, spectral and electrochemical properties of a series of new panchromatic BODIPY donor-acceptordonor derivatives, comprising carbazole conjugated with systematically elongated framework by thiophenebased linkers were investigated. It has been found that elongation of the π-system with one thiophene unit shifts the spectra toward near infrared, while incorporation of next thiophene derivatives has only limited influence on the lowest energy transition, causing no further shift of absorption maxima. Elongation of π-conjugation of the donor arm tunes the electron properties, influencing the ionization potential (IP) and electron affinity (EA) values of the molecules. The experimental results are supported by quantum chemical computations revealing that electron density of SOMO orbital is low at the 3-positions of terminal carbazole units in BODIPY push-pull oligomers while elongating their backbone, thus preventing them to undergo electrochemical polymerization giving reversibly p-and n-dopable products. Presented study tests the influence and limitations of incorporation of electron-rich substituents for designing panchromatic BODIPY systems. elongating their backbone, thus preventing them to undergo electrochemical polymerization giving reversibly p-and n-dopable products. Presented study tests the influence and limitations of incorporation of electron -rich substituents for designing panchromatic BODIPY systems.

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Section: Introductionmentioning

confidence: 99%

Systematic elongation of thienyl linkers and their effect on optical and electrochemical properties in carbazole–BODIPY donor–acceptor systems

et al. 2016

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“…例如, Tolpygin 等 [120,121] 以及 FRET [46,108] 等, 因此根据实际需要, 巧妙利用这些机理设计合成出高选择性、高灵敏度的苯并咪唑类传感器仍需要努力. 同时, 随着杂环类化合物的绿色、高效合成方法的发展 [122] , 以简洁的合成方法得到理想的苯并咪唑基荧光传感器仍然是一个充满活力的课题.…”

Section: 应用于 Ph 的检测unclassified

Progress in the Synthesis and Application of Benzimidazole-Based Fluorescent Chemosensors

Wu¹,

You²,

Guan³

et al. 2015

Chin. J. Org. Chem.

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Many benzimidazole compounds can emit characteristic fluorescence in various organic solvents and aqueous solutions, and their fluorescence properties can be influenced by some factors under certain conditions, which make them used in the field of fluorescence detection. Recently, more and more attention has been attached to the benzimidazole-based fluorescent chemosensors. Their synthesis and the extensive application in the detection of metal ions, anions, inorganic small molecules, metal oxide nanoparticles, organic small molecules, and so on are reviewed. The development trend of benzimidazole-based fluorescent chemosensors is prospected.

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“…5 The fluorescence assay might be the best choice for Hg 2+ detection due to its high sensitivity, reliability, fast analysis, low cost, being non-sample-destructing, and suitable for the real-time monitoring of anions and metal ions. 6 Quantum dots (QDs) possess unique and excellent optical properties, such as high quantum yield of FL, tunable sizedependent emission and a longer fluorescence lifetime. 7 In recent years, QDs have been used to detect various metal ions based on QDs quenching by analytes.…”

Section: Introductionmentioning

confidence: 99%

Efficient Detection of Trace Hg2+ in Water Based on the Fluorescence Quenching of Environment-friendly Thiolfunctionalized Poly(vinyl alcohol) Capped CdS Quantum Dots Nanocomposite

et al. 2016

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9PVA and its related products are good choices for preparing environment-friendly semiconductor nanocomposites due to its wide spectral range of optical transparency, biocompatibility and biodegradability, aiming at detecting environmental samples and biology applications.10 However, the relatively weak bonding ability of hydroxy groups with metal ions has significantly affected its stable conjugation with QDs, which will cause future 2016 © The Japan Society for Analytical Chemistry † To whom correspondence should be addressed. Using environment-friendly materials for sensing toxic metal ions has drawn significant attention in recent research. Herein, we present an aqueous synthesis of stable CdS quantum dots (QDs) using thiol-functionalized poly(vinyl alcohol) (PVA) as the unique capping ligand for the detection of trace Hg 2+ in environmental water samples. The CdS QDs with an average size of 3.3 nm had good water-solubility and favorable fluorescence with a quantum yield of 32.8% and a longer luminescence lifetime of 31.9 ns. The fluorescence intensity of QDs aqueous solution in the 520 nm wavelength was quenched upon the addition of Hg 2+ . Under the optimal conditions, the ratio of the blank fluorescence intensity to the quenched fluorescence intensity was linearly proportional to the Hg 2+ concentration from 2 to 4000 nM with a detection limit of 1 nM. Also, many co-existing metal ions were not interfered with the detection of Hg 2+. This nanomaterial was successfully applied to the measurement of Hg 2+ in water samples.

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Combinatorial Strategies in Fluorescent Probe Development

Cited by 617 publications

References 296 publications

Systematic elongation of thienyl linkers and their effect on optical and electrochemical properties in carbazole–BODIPY donor–acceptor systems

Systematic elongation of thienyl linkers and their effect on optical and electrochemical properties in carbazole–BODIPY donor–acceptor systems

Progress in the Synthesis and Application of Benzimidazole-Based Fluorescent Chemosensors

Efficient Detection of Trace Hg2+ in Water Based on the Fluorescence Quenching of Environment-friendly Thiolfunctionalized Poly(vinyl alcohol) Capped CdS Quantum Dots Nanocomposite

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