Detection of Ethylenediamine Using a Fluorescent Probe in Solution and in a PMMA Matrix

Kim, Yong-Kyun; Son, Sang-Ho; Lee, Taek Seung

doi:10.1080/15421406.2014.937292

Cited by 11 publications

(4 citation statements)

References 24 publications

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“…The traditional methods and techniques employed for EDA detection include bioindicator testing, 2 fluorescent probe, 3 and chromatographic method. 4 However, these methods require expensive instrumentation, cumbersome operational techniques, and long operation time.…”

Section: Introductionmentioning

confidence: 99%

Sensor performance and computational study of polyaniline film in ethylenediamine detection

Khor,

Tan,

Kerk

et al. 2023

Polymer Engineering & Sci

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The incorporation of computational chemistry toward the assessment of polyaniline (PAni) performance as ethylenediamine (EDA) sensor is first explored in this study. Through chemical oxidative polymerization, PAni is synthesized at different temperatures and applied as chemical sensor for EDA detection. PAni(0°C) exhibits higher electrical conductivity (1.486 × 10−2S/cm) and better sensitivity (0.0529) with R2 of 0.8419 compared to PAni(25°C). The presence of branches in PAni(25°C) hinders EDA from approaching the reactive sites of PAni and hence resulted in low sensitivity of 0.0022. Besides, 0.5 ppm limit of detection was obtained by using 3 layers of PAni(0°C). PAni(0°C) showed good recyclability of up to 10 cycles with 7 s short response time and 5 s fast recovery time. Meanwhile, good recoveries of 110% and 95% were obtained for real sample analysis for PAni(0°C). The high electrical conductivity of PAni(0°C) is supported by its low band gap energy of −0.2803 eV that was obtained by computational data. Based on the computational data, PAni(0°C) possesses the highest sensitivity in EDA detection with the short response time of 7 s which shows good agreement with the high interaction energy of 294 kcal/mol. Thus, a simple and effective EDA sensor is successfully developed.Highlights PAni(0°C & 25°C) were successfully characterized by FTIR and UV–Vis analysis. PAni(0°C) shows higher conductivity due to formation of longer polymer chain. Higher sensitivity toward EDA (slope = 0.0529) is obtained for PAni(0°C). PAni(0°C) tetramer shows higher interaction energy and lower band gap energy. PAni(0°C) shows 7 s response time, 5 s recovery time, and up to 10 recycling cycle.

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Section: Introductionmentioning

confidence: 99%

Sensor performance and computational study of polyaniline film in ethylenediamine detection

Khor,

Tan,

Kerk

et al. 2023

Polymer Engineering & Sci

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show abstract

“…Therefore, there is a pressing demand for on-site detection of EDA with a high sensitivity, rapid response, and real-time monitoring to prevent its potential threat to human health, public security, and environmental sustainability. Growing attention has been dedicated to developing EDA determination methodologies based on gas chromatography-mass spectrometry, [4] high performance liquid chromatography, [5] electrochemistry, [6] colorimetry, [7] and fluorescence spectroscopy, [8] etc. On account of the features including fast response, ease of operation and visualization, a fluorescence probe is deemed to fit more and has been adapted for the on-site application.…”

Section: Introductionmentioning

confidence: 99%

“…[9] However, the response time and sensitivity of the reported fluorescence methods still needs to be improved to meet the requirement in real applications. [8,10] Generally, a fluorescence probe comprising a fluorophore as the main skeleton and other chemical groups as specific binding sites holds significant values owing to the diverse and controllable structure. [11] In other words, the skeleton structure substituted with varied chemical groups exhibits different photochemical properties in widening applications, such as in-field analysis.…”

Section: Introductionmentioning

confidence: 99%

Electronic Tuning in Reaction‐Based Fluorescent Sensing for Instantaneous and Ultrasensitive Visualization of Ethylenediamine

Liu

et al. 2022

Angewandte Chemie

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Manipulation of a multi‐physical quantity to steer a molecular photophysical property is of great significance in improving sensing performance. Here, an investigation on how a physical quantity rooted in the molecular structure induces an optical behavior change to facilitate ultrasensitive detection of ethylenediamine (EDA) is performed by varying a set of thiols. The model molecule consisting of a thiol with dual‐carboxyl exhibits the strongest fluorescence, which is ascribed to the electron‐donating ability and prompted larger orbital overlap and oscillator strength. The elevated fluorescence positively corelated to the increased EDA, endowing an ultrasensitive response to the nanomolar‐liquid/ppm‐vapor. A gas detector with superior performance fulfills a contactless and real‐time management of EDA. We envisage this electron‐tuning strategy‐enabled fluorescence enhancement can offer in‐depth insight in advancing molecule‐customized design, further paving the way to widening applications.

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“…[24,25] Hence, it is important to detect these organoamines and determine their concentrations in aqueous systems and the environmenta se ffectively and quickly as possible. At present, methods for detectiono fo rganoamines include opticals ensing, [26] luminescence-based probes, [27] fluorescent probes, [28] and chemical sensing. [12,15,16] However,s ome of these detection methods are costly to employ,w hereas others have limitedd etection sensitivities.…”

mentioning

confidence: 99%

Hierarchically Self‐Assembled Star‐Shaped ZnO Microparticles for Electrochemical Sensing of Amines

Huang

Zhao³

et al. 2016

Chemistry A European J

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Novel, hierarchically nanostructured, star-shaped ZnO (SSZ) microparticles are synthesized by a hydrothermal synthetic route. The SSZ microparticles serve as effective platforms for electrochemical detection of amines in solution. The morphology and structure of the materials are characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, Raman spectroscopy, and UV/Vis spectroscopy. The as-synthesized SSZ microparticles comprise self-assembled hexagonal prisms that possess nanometer and micrometer pores in their structure and on their surfaces-structural features that are conducive to sensing applications. An electrode fabricated by using the hierarchically nanostructured SSZ materials serve as a sensitive electrochemical sensor for detection of low concentrations of ethylenediamine, with a sensitivity of 2.98×10(-2) mA cm(-2) mm(-1) , a detection limit of 2.36×10(-2) mm, and a short response time of 8 s.

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Detection of Ethylenediamine Using a Fluorescent Probe in Solution and in a PMMA Matrix

Cited by 11 publications

References 24 publications

Sensor performance and computational study of polyaniline film in ethylenediamine detection

Sensor performance and computational study of polyaniline film in ethylenediamine detection

Electronic Tuning in Reaction‐Based Fluorescent Sensing for Instantaneous and Ultrasensitive Visualization of Ethylenediamine

Hierarchically Self‐Assembled Star‐Shaped ZnO Microparticles for Electrochemical Sensing of Amines

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