A single carbazole based chemosensor for multiple targets: Sensing of Fe3+ and arginine by fluorimetry and its applications

David, C. Immanuel; Prabakaran, G.; Karuppasamy, Ayyanar; Veetil, Jipsa Chelora; Kumar, Raju Suresh; Almansour, Abdulrahman I.; Perumal, Karthikeyan; Ramalingan, Chennan; Nandhakumar, Raju

doi:10.1016/j.jphotochem.2021.113693

Cited by 16 publications

(5 citation statements)

References 86 publications

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“…Similarly to the previous case (52) [197], the system formed after detecting Al 3+ can detect PA based on the additional/sequential interaction with the detected cation. These examples show that the second analyte does not always remove the initially identified cation.…”

Section: Mlgs Based On Neutral Molecules As Input2mentioning

confidence: 96%

“…In 2022, David et al described the carbazole derivative 52 as a fluorescent MLG to detect Fe 3+ and the amino acid arginine (Arg) (Scheme 22) [197]. Compound 52 displayed an intense emission at 435 nm, sharply reduced with a blue-shift to 405 nm upon adding Fe 3+ .…”

Section: Mlgs Based On Neutral Molecules As Input2mentioning

confidence: 99%

“…(a) MLG 52 proposed by David et al for detecting Fe 3+ and, sequentially, amino acid arginine (Arg). (b) Truth table and (c) diagram representing 52 as an IMPLICATION-type MLG[197].…”

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confidence: 99%

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Input Selection Drives Molecular Logic Gate Design

Souto,

Dias

2023

Analytica

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Optical detection devices have become an analytical tool of interest in diverse fields of science. The search for methods to identify and quantify different compounds has transposed this curiosity into a necessity, since some constituents threaten the safety of life in all its forms. In this context, 30 years ago, Prof. Prasanna de Silva presented the idea of sensors as Molecular Logic Gates (MLGs): a molecule that performs a logical operation based on one or more inputs (analytes) resulting in an output (optical modification such as fluorescence or absorption). In this review, we explore the implementation of MLGs based on the interference of a second input (second analyte) in suppressing or even blocking a first input (first analyte), often resulting in INHIBIT-type gates. This approach is interesting because it is not related to attached detecting groups in the MLG but to the relation between the first and the second input. In this sense, flexible and versatile MLGs can be straightforwardly designed based on input selection. To illustrate these cases, we selected examples seeking to diversify the inputs (first analytes and interfering analytes), outputs (turn on, turn off), optical response (fluorescent/colorimetric), and applicability of these MLGs.

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Section: Mlgs Based On Neutral Molecules As Input2mentioning

confidence: 96%

Section: Mlgs Based On Neutral Molecules As Input2mentioning

confidence: 99%

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Input Selection Drives Molecular Logic Gate Design

Souto,

Dias

2023

Analytica

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“…Figure A–C presents confocal, bright-field, and overlaid images of the three probes along with their metal complexes in E. coli bacteria. , The probes alone (10 μM) were examined without the addition of Ag + ions, which showed weak fluorescence as discussed regarding the fluorescence selectivity of metal ions. After the addition of Ag + (20 μM) to free probes, strong fluorescence is shown through the green channel.…”

Section: Real Sample Analysismentioning

confidence: 99%

Positional Isomeric Symmetric Dipodal Receptors Dangled with Rotatable Binding Scaffolds: Fluorescent Sensing of Silver Ions and Sequential Detection of l-Histidine and Their Multifarious Applications

Prabakaran

David

Suresh

et al. 2022

J. Agric. Food Chem.

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Three simple dipodal artificial acyclic symmetric receptors, SDO, SDM, and SDP, driven by positional isomerism based on xylelene scaffolds were designed, synthesized, and characterized by 1 H NMR, 13 C NMR, and mass spectroscopy techniques. Probes SDO, SDM, and SDP demonstrated selective detection of Ag + metal ions and amino acid L-histidine in a DMSO−H 2 O solution (1:1 v/v, HEPES 50 mM, pH = 7.4). The detection of Ag + metal ions occurred in three ways: (i) inhibition of the photoinduced electron-transfer (PET) process, (ii) blueshifted fluorescence enhancement via the intramolecular chargetransfer (ICT) process, and (iii) restricted rotation of the dangling benzylic scaffold following coordination with a Ag + metal ion. Job's plot analysis and quantum yields confirm the binding of probes to Ag +

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“…These procedures, on the other hand, are exceedingly expensive, time-consuming, non-portable and rely on sample pre-treatments, complex instrumental calibrations and well-trained operators, whereas colorimetric and fluorogenic sensors have been proven to be more effective, as they are very sensitive, selective, have a fast response time, are easy to operate, and can be used on-site. Various families of fluorescent probes for the detection of Fe 3+ ions have been produced to date [16][17][18][19][20][21][22]. In addition, the nano-composites of silica are currently drawing a lot of interest because of their various benefits, including long shelf life, tunable size and high specific surface area with a lot of hydroxyl (Si-OH) bonds on their surface [23].…”

Section: Introductionmentioning

confidence: 99%

Sulfonamide functionalized silica nano-composite: characterization and fluorescence “turn-on” detection of Fe3+ ions in aqueous samples

Ekta

Utreja

2023

Photochem Photobiol Sci

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We have synthesized novel sulfonamide-based nano-composite (SAN) for selective and sensitive detection of Fe 3+ ions in aqueous samples. Morphological characterization of SAN was carried out with TGA, FT-IR, UV-Vis, ninhydrin assay, FE-SEM, pXRD, BET, EDX, and elemental analysis. The sensing nature, effect of pH, sensor concentration and response time analysis were accomplished with the help of emission spectral studies and SAN was assessed as "turn-on" emission detector for the biologically important Fe 3+ ions. Here, the LOD and LOQ were computed to be 26.68 nM and 88.93 nM, respectively, and it was found to be much lower than the permissible limit of Fe 3+ ions in drinking water. The accuracy of the sensor (SAN) was determined by testing the aqueous samples spiked with known concentrations of Fe 3+ ions and results demonstrated 98.00-99.66% recovery, which made SAN a reliable, selective and sensitive chemosensor for the quantification of Fe 3+ ions in fully aqueous media.

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A single carbazole based chemosensor for multiple targets: Sensing of Fe3+ and arginine by fluorimetry and its applications

Cited by 16 publications

References 86 publications

Input Selection Drives Molecular Logic Gate Design

Input Selection Drives Molecular Logic Gate Design

Positional Isomeric Symmetric Dipodal Receptors Dangled with Rotatable Binding Scaffolds: Fluorescent Sensing of Silver Ions and Sequential Detection of l-Histidine and Their Multifarious Applications

Sulfonamide functionalized silica nano-composite: characterization and fluorescence “turn-on” detection of Fe3+ ions in aqueous samples

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