A single fluorescent self-assembled monolayer film sensor with discriminatory power

Ding, Liping; Liu, Yuan; Cao, Yuan; Wang, Lingling; Xin, Yunhong; Fang, Yu

doi:10.1039/c2jm30697b

Cited by 52 publications

(43 citation statements)

References 43 publications

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“…[23] Fang, Ding and co-authors have implemented pyrene fluorophores covalently attached to the glass surface to obtain aS AM film sensor for the detection of NACs in water,a sw ell as in ag as phase. [24] The heterophasic detection mode is the main disadvantage of the above approaches. Thus, prior to the binding event, the dissolvedn itro-analyte must diffuse to the surfaceo ft he sensor (which is usually not soluble in water or polar solvents) and, after the binding has occurred, the signaling unit(s) (e.g., fluorophore(s)) will signaling( via fluorescenceq uenching).S o far,o nly few chemosensors soluble in polar solvents have been reported.F or example, pyrene-1,3,6,8-tetraylphosphoric acid and its ethyl ester were used for the fluorescent detection of TNT and PA in methanol, and high values of Stern-Volmer constants (up to 8.3 10 4 m À1 for TNT) have been reported.…”

Section: Introductionmentioning

confidence: 99%

Fluorescent Detection of 2,4‐DNT and 2,4,6‐TNT in Aqueous Media by Using Simple Water‐Soluble Pyrene Derivatives

Коvalev

Taniya

Словеснова

et al. 2016

Chemistry An Asian Journal

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Pyrene-containing water-soluble probes for the fluorescent detection of nitroaromatic compounds (NACs), such as explosive components (2,4-DNT and 2,4,6-TNT) and herbicides (2,4-dinitrocresol, 2,4-DNOC), in aqueous media are reported. In the probes, the introduction of surface-active hydrophilic "heads" at the periphery of lipophilic (i.e., hydrophobic) pyrene "tails" resulted in the formation of highly fluorescent micelle-like aggregates/pre-associates in aqueous solutions at concentrations of ≤10(-5) m. The enhanced fluorescence quenching of the herein reported architectures is achieved in the presence of ultra-trace amounts of TNT or 2,4-DNT with values of Stern-Volmer quenching constant close to 1×10(5) m(-1) and a detection limit as low as 182 ppb. The most hydrophilic probes demonstrated higher response to 2,4-DNT over TNT. Filter paper test strips impregnated with 1×10(-5) m solutions of the probes were able to detect TNT, 2,4-DNT, and other NACs at levels as low as 50 ppb in water.

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Section: Introductionmentioning

confidence: 99%

Fluorescent Detection of 2,4‐DNT and 2,4,6‐TNT in Aqueous Media by Using Simple Water‐Soluble Pyrene Derivatives

Коvalev

Taniya

Словеснова

et al. 2016

Chemistry An Asian Journal

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“…13,14 Wang et al have developed a colorimetric and uorescent N-acylhydrazone based receptor for specic recognition of PA. [15][16][17] P. S. Mukherjee group reported a variety of different types of p-electron-rich uorophores functionalized with trimethylsilylethynyl and 3D supramolecular assemblies of metal-organic frameworks were designed for ppb level detection of PA. 18,19 In addition to these, Tang, Fang and coworkers have explored uorescent molecules in their aggregated and self-assembled states, respectively for the detection of PA among other analogues. 20,21 Although there are numerous reports on uorogenic chemosensors for PA, most detection systems are either less selective or exhibit low-to-moderate Stern-Volmer constants. As reported that due to the low vapor pressure of PA in comparison to other nitroderivatives, the vapor phase detection of PA still remains a great challenge.…”

Section: Introductionmentioning

confidence: 99%

Self-assembled triphenylamine derivative for trace detection of picric acid

Lei

2014

RSC Adv.

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Detection of explosives is of utmost importance due to the threat to human security as a result of illegal transport and terrorist activities. Picric acid (PA) is widely used in the industrial and military fields, and is inadvertently able to contaminate the environment and groundwater, posing a threat to human health.Achieving the detection of explosives at the parts per billion (ppb) level using chemosensors is a great challenge. Herein, we demonstrate that triphenylamine based fluorescent chemosensors tris(4 0 -carbethoxybiphenyl) amine (TCEPA) and tris(4 0 -carboxybiphenyl) amine (TCPA) exhibit superior detection capability for PA in solution state at the ppb level (40 ppb and 5 ppb respectively) and efficient quenching behaviours in the vapor phase at room temperature. In addition, fluorescent test strips have been prepared by dip-coating Thin Layer Chromatography (TCL) for trace detection of PA at the attogram level.

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“…They reported on a self-assembled monolayer film sensor with discriminatory power which was accomplished by using pyrene as fluorophore and oligo(oxyethylene) unit as hydrophilic spacer. 180 For example, the chemical linkers that bound the pyrene moieties onto the Ru nanoparticle surface was examined by Chen et al using Ru-1-vinylpyrene (Ru=VPy) and Ru-1-allypyrene (Ru=APy) immobilized glass substrates. 116 The lower sensitivity of Ru=APy than the Ru=VPy counterparts was ascribed to the insertion of a sp 3 carbon into the chemical linker which turned off the extended conjugation.…”

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confidence: 99%

Fluorescence based explosive detection: from mechanisms to sensory materials

2015

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The detection of explosives is one of the current pressing concerns in global security. In the past few decades, a large number of emissive sensing materials have been developed for the detection of explosives in vapor, solution, and solid states through fluorescence methods. In recent years, great efforts have been devoted to develop new fluorescent materials with various sensing mechanisms for detecting explosives in order to achieve super-sensitivity, ultra-selectivity, as well as fast response time. This review article starts with a brief introduction on various sensing mechanisms for fluorescence based explosive detection, and then summarizes in an exhaustive and systematic way the state-of-the-art of fluorescent materials for explosive detection with a focus on the research in the recent 5 years. A wide range of fluorescent materials, such as conjugated polymers, small fluorophores, supramolecular systems, bio-inspired materials and aggregation induced emission-active materials, and their sensing performance and sensing mechanism are the centerpiece of this review. Finally, conclusions and future outlook are presented and discussed.

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A single fluorescent self-assembled monolayer film sensor with discriminatory power

Cited by 52 publications

References 43 publications

Fluorescent Detection of 2,4‐DNT and 2,4,6‐TNT in Aqueous Media by Using Simple Water‐Soluble Pyrene Derivatives

Fluorescent Detection of 2,4‐DNT and 2,4,6‐TNT in Aqueous Media by Using Simple Water‐Soluble Pyrene Derivatives

Self-assembled triphenylamine derivative for trace detection of picric acid

Fluorescence based explosive detection: from mechanisms to sensory materials

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