Highly selective and reproducible detection of picric acid in aqueous media, based on a polydiacetylene microtube optical waveguide

Yang, Guang; Hu, Wen-Long; Xia, Hongyan; Zou, Gang; Zhang, Qijin

doi:10.1039/c4ta03667k

Cited by 59 publications

(39 citation statements)

References 40 publications

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“…In contrast, it is found that the concentration quenching effect is non-signicant for PCPC-MS, as shown in Fig. This value is found to be higher compared to some other reported uorescent chemical sensors for PA, 32,49,52 indicating the superquenching ability of PA towards PCPC-MS. † At high concentration, PCPC-MS still exhibit a relatively strong uorescence emission, indicating that the curcumin moieties should be isolated in the highly cross-linked structure.…”

Section: Fluorescent Sensing Of Pa In Solution Phase By Pcpc-msmentioning

confidence: 70%

“…[26][27][28][29][30][31][32][33][34] Inspired by this, we successfully prepared a novel uorescent chemical sensor for PA based on highly crosslinked copolymer microspheres of hexachlorocyclotriphosphazene (HCCP) and curcumin by a simple one-pot precipitation copolymerization method. [26][27][28][29][30][31][32][33][34] Inspired by this, we successfully prepared a novel uorescent chemical sensor for PA based on highly crosslinked copolymer microspheres of hexachlorocyclotriphosphazene (HCCP) and curcumin by a simple one-pot precipitation copolymerization method.…”

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confidence: 99%

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Highly cross-linked fluorescent poly(cyclotriphosphazene-co-curcumin) microspheres for the selective detection of picric acid in solution phase

et al. 2015

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Highly cross-linked and organic-inorganic hybrid poly(cyclotriphosphazene-co-curcumin) microspheres (PCPC-MS) were facilely prepared by a one-step precipitation copolymerization method, and served as a fluorescent chemical sensor for the detection of picric acid (PA) in solution phase. The photochemically inert cyclotriphosphazene moieties intentionally introduced into the structure of the sensor could play a role not only in connecting curcumin fluorophores to construct a highly cross-linked fluorescent architecture with excellent thermal stability and photobleaching stability, but also in effectively enriching PA from bulk solution to the surface of the sensor by the acid-base interaction between the acidic phenolic hydroxyl groups of PA molecules and the electron-rich nitrogen atoms of the cyclotriphosphazene units, which might facilitate the formation of a ground-state non-fluorescent complex of the microspheres and PA as well as the excited-state energy transfer from the microspheres to PA. Therefore, PCPC-MS exhibited a fluorescence quenching response towards PA with high sensitivity, efficiency, and selectivity over a number of other analytes such as 2,4,6-trinitrotoluene, 2,4dinitrotoluene, 1,3-dinitrobenzene, 4-nitrotoluene, nitrobenzene, 4-benzoquinone, chlorobenzene, and nitromethane in methanol. In addition, PCPC-MS could also effectively detect PA in the presence of the other analytes, indicating their remarkable ability for resisting interferences and specific recognition of PA. This study provides new insights into the design and preparation of a polymer-based fluorescence chemical sensor for PA with low toxicity, a simple preparation process, and high selectivity.

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Section: Fluorescent Sensing Of Pa In Solution Phase By Pcpc-msmentioning

confidence: 70%

mentioning

confidence: 99%

Highly cross-linked fluorescent poly(cyclotriphosphazene-co-curcumin) microspheres for the selective detection of picric acid in solution phase

et al. 2015

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“…Among the highly explosive poly nitro aromatic compounds picric acid is the most devastating one. Although there are reports of selective detection of picric acid616263646566, most of them are not sensitive enough to detect very low level (ppb level) of picric acid. Here we have reported the selective detection of picric acid.…”

Section: Discussionmentioning

confidence: 99%

On-line Ammonia Sensor and Invisible Security Ink by Fluorescent Zwitterionic Spirocyclic Meisenheimer Complex

Das

Pramanik

Haldar

2017

Sci Rep

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Ammonia is not only a highly important gas for civilization but also contribute significantly for climate change and human health hazard. Highly sensitive ammonia sensor has been developed from a fluorescent zwitterionic spirocyclic Meisenheimer complex. Moreover, formation of this Meisenheimer complex can also be utilized for selective as well as naked eye instant detection of nitro aromatic explosive picric acid. The presence of a quaternary nitrogen atom directly attached to the spiro carbon is the unique feature of this Meisenheimer complex. This excellent photoluminescent (PL) Meisenheimer complex has two distinct stimuli responsive sites. One is sensitive towards acid while the other one is towards the base. These two positions can be modulated by adding one equivalent acid and one equivalent base to result two new products which are non fluorescent. One of these two non fluorescent species was found very exciting because of its UV/Vis transparency. Utilizing this concept we have fabricated an on-line sensor for measuring ammonia in dry or humid and condensing sewer air. The sensor was robust against ambient temperature and humidity variation. We have also developed an invisible ink from this Meisenheimer complex, with potential application for security purpose.

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“…8,51 In fact, literature reports on fluorophore probe-based explosive sensing in water have been indeed scarce. 32,35,[52][53][54][55][56] In this regard, instead of solubilization of the probe, water-stability is a unique feature exhibited by some of the new-generation functional materials like metal-organic frameworks (MOFs); [57][58][59][60] wherein the inherent porous franework remains unaffected in water, even after prolonged exposure for the specific waterstable MOFs. Apart from their well-recognized multifarious applications in the microporous domain; [61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78] MOFs have established themselves as excellent sensory materials because of the unmatched combination of crystallinity, permanent porosity, and designable pores with tailored window-sizes, systematically tunable band gaps and electronic structures.…”

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confidence: 99%

Exploitation of Guest Accessible Aliphatic Amine Functionality of a Metal–Organic Framework for Selective Detection of 2,4,6-Trinitrophenol (TNP) in Water

Mukherjee

Desai

Manna

et al. 2015

Crystal Growth & Design

140

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Highly selective and sensitive aqueous phase-detection of well-known nitro explosive environmental pollutant 2,4,6-Trinitrophenol (TNP) by a water-stable, porous luminescent metal-organic framework has been reported. The presence of guest accessible aliphatic amine functionality in the MOF channels has been strategically harnessed for serving the purpose of exclusive TNP-sensing in water even in concurrent presence of other nitro aromatic and nitro aliphatic analytes.

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Highly selective and reproducible detection of picric acid in aqueous media, based on a polydiacetylene microtube optical waveguide

Cited by 59 publications

References 40 publications

Highly cross-linked fluorescent poly(cyclotriphosphazene-co-curcumin) microspheres for the selective detection of picric acid in solution phase

Highly cross-linked fluorescent poly(cyclotriphosphazene-co-curcumin) microspheres for the selective detection of picric acid in solution phase

On-line Ammonia Sensor and Invisible Security Ink by Fluorescent Zwitterionic Spirocyclic Meisenheimer Complex

Exploitation of Guest Accessible Aliphatic Amine Functionality of a Metal–Organic Framework for Selective Detection of 2,4,6-Trinitrophenol (TNP) in Water

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