A Selective Turn off Fluorescence Sensor Based on Propranolol-SDS Assemblies for Fe3+ Detection

Gujar, Varsha; Sangale, Vijay B.; Ottoor, Divya

doi:10.1007/s10895-018-2313-5

Cited by 13 publications

(6 citation statements)

References 31 publications

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“…A wide variety of luminescent micellar systems have been reported so far in the current literature demonstrating metal ion sensing [8][9][10][11][12][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50]. However, as our main focus is on explosive sensing in a micellar medium, we will cover the metal ion sensing in this section in brief.…”

Section: Luminescent Micellar Systems For Metal Ion Sensingmentioning

confidence: 99%

“…These luminophoric materials are used to demonstrate the rudimentary models for various CT/ET processes in an aqueous solution in the presence of various chemical entities [1][2][3][4][5][6][7]. Based on the fundamental idea of CT/ET transition, a considerable number of elegant luminous micellar systems are developed for sensing metal ions [8][9][10][11][12] and anions [13][14][15], biomolecules [16][17][18][19][20], detection of explosive [21][22][23][24][25], etc. to name a few.…”

Section: Introductionmentioning

confidence: 99%

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Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives

et al. 2022

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Luminescent micelles are extensively studied molecular scaffolds used in applied supramolecular chemistry. These are particularly important due to their uniquely organized supramolecular structure and chemically responsive physical and optical features. Various luminescent tags can be incorporated with these amphiphilic micelles to create efficient luminescent probes that can be utilized as “chemical noses” (sensors) for toxic and hazardous materials, bioimaging, drug delivery and transport, etc. Due to their amphiphilic nature and well-defined reorganized self-assembled geometry, these nano-constructs are desirable candidates for size and shape complementary guest binding or sensing a specific analyte. A large number of articles describing micellar fluorogenic probes are reported, which are used for cation/anion sensing, amino acid and protein sensing, drug delivery, and chemo-sensing. However, this particular review article critically summarizes the sensing application of nitroaromatic (e.g., trinitrotoluene (TNT), trinitrobenzene (TNB), trinitrophenol (TNP), dinitrobenzene (DNB), etc.) and nitramine explosives (e.g., 1,3,5-trinitro-1,3,5-triazinane, trivially named as “research department explosive” (RDX), 1,3,5,7-tetranitro-1,3,5,7-tetrazocane, commonly known as “high melting explosive” (HMX) etc.). A deeper understanding on these self-assembled luminescent “functional materials” and the physicochemical behavior in the presence of explosive analytes might be helpful to design the next generation of smart nanomaterials for forensic applications. This review article will also provide a “state-of-the-art” coverage of research involving micellar–explosive adducts demonstrating the intermolecular charge/electron transfer (CT/ET) process operating within the host–guest systems.

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Section: Luminescent Micellar Systems For Metal Ion Sensingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives

et al. 2022

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“…However, when compared to measuring interfacial tension changes alone, we obtained an improved experimental LOD with complex emulsions at 25 μM as well as a higher saturation concentration of 125 mM. This improvement in sensing performance stems from the ability of complex emulsions to amplify the small difference in interfacial tensions (γ FW – γ HW ) into significant morphological and optical changes. ,, This LOD is comparable to other novel sensing devices and provides a basis for multiplexed sensing at multiple oil/water interfaces …”

Section: Resultsmentioning

confidence: 69%

Functionalized Amphiphilic Block Copolymers and Complex Emulsions for Selective Sensing of Dissolved Metals at Liquid–Liquid Interfaces

Durkin,

Barua,

Holmstrom

et al. 2023

Langmuir

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Increasing contamination in potable water supplies necessitates the development of sensing methods that provide the speed and selectivity necessary for safety. One promising method relies on recognition and detection at the liquid–liquid interface of dynamic complex emulsions. These all-liquid materials transduce changes in interfacial tensions into optical signals via the coupling of their chemical, physical, and optical properties. Thus, to introduce selectivity, it is necessary to modify the liquid–liquid interface with an interfacially stable and selective recognition unit. To this end, we report the synthesis and characterization of amphiphilic block copolymers modified with metal chelators to selectively measure the concentrations of dissolved metal ions. We find that significant reduction in interfacial tensions arises upon quantitative addition of metal ions with high affinity toward functionalized chelators. Furthermore, measurements from UV–vis spectroscopy reveal that complexation of the block copolymers with metal ions leads to an increase in surface excess and surfactant effectiveness. We also demonstrate selective detection of iron(III) cations (Fe3+) on the μM levels even through interference from other mono-, di-, or trivalent cations in complex matrices of synthetic groundwater. Our results provide a unique platform that couples selective recognition and modulation of interfacial behaviors and demonstrates a step forward in the development of the multiplexed sensing device needed to deconvolute the complicated array of contaminants that comprise real-world environmental samples.

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“…[3,4] Iron is one of the essential trace elements in the human body and plays significant roles in various biological processes such as respiration, oxygen transportation, electron transfer, and enzymatic reactions. [5][6][7] Deficiency or surplus of iron may cause adverse effects on human health. Iron deficiency is the most common mineral deficiency and its lack could lead to anaemia.…”

Section: Introductionmentioning

confidence: 99%

An aminonaphthalene‐based colorimetric and fluorescent sensor for selective recognition of Fe³⁺ in water

2020

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This paper describes the synthesis of poly(1‐aminonaphthalene) and its application as a chemosensor for detection of Fe3+ using the naked eye and a fluorimetric method. The conjugated polymer was synthesized by chemical oxidative polymerization using FeCl3 as a catalyst. The response of the polymer towards various metal ions was investigated using colorimetric detection, and ultraviolet–visible and fluorescence spectroscopies. The polymer displayed high selectivity and sensitivity towards Fe3+ compared with other metal ions. A significant colour change from purple to yellow was observed upon addition of Fe3+ by the naked eye. The polymer also showed a high selectivity and sensitivity ‘turn‐off’ fluorescence response towards Fe3+ ions. A good linear response was obtained for Fe3+ concentrations in the range 10–50 mg L−1 with a detection limit of 1.04 mg L−1. The proposed chemosensor was applied for determination of Fe3+ content in water samples and satisfactory results were obtained.

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A Selective Turn off Fluorescence Sensor Based on Propranolol-SDS Assemblies for Fe3+ Detection

Cited by 13 publications

References 31 publications

Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives

Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives

Functionalized Amphiphilic Block Copolymers and Complex Emulsions for Selective Sensing of Dissolved Metals at Liquid–Liquid Interfaces

An aminonaphthalene‐based colorimetric and fluorescent sensor for selective recognition of Fe³⁺ in water

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A Selective Turn off Fluorescence Sensor Based on Propranolol-SDS Assemblies for Fe3+ Detection

Cited by 13 publications

References 31 publications

Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives

Nanostructured Luminescent Micelles: Efficient “Functional Materials” for Sensing Nitroaromatic and Nitramine Explosives

Functionalized Amphiphilic Block Copolymers and Complex Emulsions for Selective Sensing of Dissolved Metals at Liquid–Liquid Interfaces

An aminonaphthalene‐based colorimetric and fluorescent sensor for selective recognition of Fe3+ in water

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Product

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An aminonaphthalene‐based colorimetric and fluorescent sensor for selective recognition of Fe³⁺ in water