Synthesis of poly(p-phenylene) containing a rhodamine 6G derivative for the detection of Fe(<scp>iii</scp>) in organic and aqueous media

Namgung, Ho; Kim, Jong‐Ho; Gwon, Youngjin; Lee, Taek Seung

doi:10.1039/c7ra07853f

Cited by 11 publications

(10 citation statements)

References 43 publications

(42 reference statements)

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Section: Transducersmentioning

confidence: 99%

“…It has been proposed that the conjugated polymer poly( p ‐phenylene) (PPP) modified with rhodamine 6G (R6G) could be used for detecting Fe(III) with this approach. [ 70 ] In these transducers, ring opening of R6G after interaction with the target generates red fluorescence, which is intensified by the transfer of blue emission from PPP (donor) to R6G (acceptor) (Figure 3C). The paper sensor was obtained by dip coating and drying, and could be regenerated by adding an Fe(III) chelating agent such as EDTA.…”

Section: Transducersmentioning

confidence: 99%

“…Fluorescence based Fe(III) sensor [70] Conjugated PDA inks Colorimetric moisture sensor [71] PDA:PPy layers Temperature sensor for detecting near infrared (NIR) light [72] PDA-diynediamides in a PVC film HCl gas sensors [73] multilayered materials retained the foldable and cuttable nature of paper, which enabled shaping them into 3D structures using origami and kirigami techniques. The pressure sensors were successfully used to monitor human physiological signals and motions such as respiration, pulse, muscle movement and gait, which made them promising materials for developing wearable sensors.…”

Section: Polymer Applicationmentioning

confidence: 99%

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Polymer Components for Paper‐Based Analytical Devices

Campo

Vaquer

Rica

2022

Adv Materials Technologies

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In recent years, paper has become an essential substrate material for developing different types of sensors, from wearable devices to single‐use test strips and biosensors. In parallel, a polymer‐based toolbox has emerged in order to add additional functions to these paper‐based analytical devices. In this article, examples are compiled from the recent literature showing microfluidic systems based on printing impermeable polymer barriers with different methods as well as the implementation of electrochemical, fluorescent, and colorimetric polymer‐based transducers in paper‐based analytical platforms. Externally actuated or dissolvable polymer valves and reservoirs, analyte concentrators, and separation devices, as well as polymer‐based recognition elements (molecularly imprinted polymers) printed on paper substrates are also reviewed. The search has revealed a plethora of possibilities for developing complex lab‐on‐chip devices implementing different polymer‐based components in them. The ability of patterning these polymers with common printing methods that do not require specialized facilities paves the way for mass producing this kind of advanced paper‐based analytical device.

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Section: Transducersmentioning

confidence: 99%

Section: Transducersmentioning

confidence: 99%

Section: Polymer Applicationmentioning

confidence: 99%

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Polymer Components for Paper‐Based Analytical Devices

Campo

Vaquer

Rica

2022

Adv Materials Technologies

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“…To date, a variety of chemosensors for on-site heavy metal ion determination with high sensitivity and ease of use were reported [10][11][12]. Fluorescent techniques are proposed, which are based on the interaction of Fe(III) ions with carbon nanodots [13,14], metal-organic frameworks [15], copper nanoclusters capped with BSA [16], or fluorescent dyes [17,18]. The described variants differ in their detection methods (quenching or activation of fluorescence), as well as in the mechanism (direct detection or with energy transfer).…”

Section: Introductionmentioning

confidence: 99%

Mercaptosuccinic-Acid-Functionalized Gold Nanoparticles for Highly Sensitive Colorimetric Sensing of Fe(III) Ions

et al. 2021

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The development of reliable and highly sensitive methods for heavy metal detection is a critical task for protecting the environment and human health. In this study, a qualitative colorimetric sensor that used mercaptosuccinic-acid-functionalized gold nanoparticles (MSA-AuNPs) to detect trace amounts of Fe(III) ions was developed. MSA-AuNPs were prepared using a one-step reaction, where mercaptosuccinic acid (MSA) was used for both stabilization, which was provided by the presence of two carboxyl groups, and functionalization of the gold nanoparticle (AuNP) surface. The chelating properties of MSA in the presence of Fe(III) ions and the concentration-dependent aggregation of AuNPs showed the effectiveness of MSA-AuNPs as a sensing probe with the use of an absorbance ratio of A530/A650 as an analytical signal in the developed qualitative assay. Furthermore, the obvious Fe(III)-dependent change in the color of the MSA-AuNP solution from red to gray-blue made it possible to visually assess the metal content in a concentration above the detection limit with an assay time of less than 1 min. The detection limit that was achieved (23 ng/mL) using the proposed colorimetric sensor is more than 10 times lower than the maximum allowable concentration for drinking water defined by the World Health Organization (WHO). The MSA-AuNPs were successfully applied for Fe(III) determination in tap, spring, and drinking water, with a recovery range from 89.6 to 126%. Thus, the practicality of the MSA-AuNP-based sensor and its potential for detecting Fe(III) in real water samples were confirmed by the rapidity of testing and its high sensitivity and selectivity in the presence of competing metal ions.

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“…Rhodamine dyes are also incorporated into polymer sidechains as fluorescent probes. 24,35 Although rhodamine dyes are known for their excellent photophysical properties, they are not commonly known for their electrochemical properties. In fact, these dyes have good to excellent electrochemical properties.…”

mentioning

confidence: 99%