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Devadiga D, Ahipa TN. Protonation induced redshift in the fluorescence of a pyridine derivative as a potential anti-counterfeiting agent. SOFT MATTER 2022; 18:8008-8016. [PMID: 36222182 DOI: 10.1039/d2sm01151d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
A simple pyridine-based compound, i.e. (2,4,6-tris(4-(hexyloxy)phenyl)pyridine), was synthesized and exhibited excellent solubility in various organic solvents owing to the presence of three 4-n-hexyloxy chains in its molecular structure. Further, we studied the effect of various solvents on its absorption and emission properties. We observed a greater extent of redshift in the chloroform solvent compared to the rest of the solvents. In fact, the observed redshift was attributed to protonation of the pyridine moiety by HCl (present due to the oxidative photo-decomposition of chloroform) in the solvent. Therefore, we also studied the acidochromic properties of the compound using acetic acid (AA), trifluoroacetic acid (TFA), and hydrochloric acid (HCl). We found that the compound sensed the HCl vapor much more efficiently than the TFA and AA vapours. Additionally, DFT analysis suggested a narrow theoretical bandgap for the protonated molecule when compared to the neutral molecule, explaining the redshift in the absorption and emission spectra of the protonated molecule. Furthermore, the compound exhibited a good level of aggregation induced enhanced emission (AIEE) in the THF-water system. In fact, compounds showing both AIEE and acidochromism are rarely reported in the literature. Finally, we employed it as an anti-counterfeiting agent based on its acid-base vapour sensing capability.
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Affiliation(s)
- Deepak Devadiga
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore 562112, India.
| | - T N Ahipa
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Bangalore 562112, India.
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2
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Sachdeva T, Milton MD. Novel push-pull based phenothiazine-benzothiazole derivatives integrated with molecular logic gate operation for reversible volatile acid detection. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130768] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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4
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Zhan Y, Yang P, Li G, Zhang Y, Bao Y. Reversible piezofluorochromism of a triphenylamine-based benzothiazole derivative with a strong fluorescence response to volatile acid vapors. NEW J CHEM 2017. [DOI: 10.1039/c6nj02735k] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ground film of a triphenylamine modified benzothiazole derivative can detect volatile acid vapors with high performance.
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Affiliation(s)
- Yong Zhan
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Peng Yang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Gang Li
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Yuanyuan Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
| | - Ying Bao
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education
- Shenyang Pharmaceutical University
- Shenyang
- P. R. China
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5
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Individual volatile fatty acids determination by chromogenic derivatization coupled to multi-syringe chromatography. Talanta 2013; 115:737-43. [DOI: 10.1016/j.talanta.2013.06.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2013] [Revised: 06/12/2013] [Accepted: 06/14/2013] [Indexed: 11/23/2022]
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6
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Solid phase analytical derivatization as a sample preparation method. J Chromatogr A 2013; 1296:204-13. [DOI: 10.1016/j.chroma.2013.03.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 03/09/2013] [Accepted: 03/11/2013] [Indexed: 11/21/2022]
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7
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Godayol A, Alonso M, Sanchez JM, Anticó E. Odour-causing compounds in air samples: Gas-liquid partition coefficients and determination using solid-phase microextraction and GC with mass spectrometric detection. J Sep Sci 2013; 36:1045-53. [DOI: 10.1002/jssc.201200727] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 11/19/2012] [Accepted: 12/17/2012] [Indexed: 01/11/2023]
Affiliation(s)
- Anna Godayol
- Department of Chemistry; University of Girona; Girona Spain
| | - Mònica Alonso
- Department of Chemistry; University of Girona; Girona Spain
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8
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Nyangale EP, Mottram DS, Gibson GR. Gut microbial activity, implications for health and disease: the potential role of metabolite analysis. J Proteome Res 2012; 11:5573-85. [PMID: 23116228 DOI: 10.1021/pr300637d] [Citation(s) in RCA: 187] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Microbial metabolism of proteins and amino acids by human gut bacteria generates a variety of compounds including phenol, indole, and sulfur compounds and branched chain fatty acids, many of which have been shown to elicit a toxic effect on the lumen. Bacterial fermentation of amino acids and proteins occurs mainly in the distal colon, a site that is often fraught with symptoms from disorders including ulcerative colitis (UC) and colorectal cancer (CRC). In contrast to carbohydrate metabolism by the gut microbiota, proteolysis is less extensively researched. Many metabolites are low molecular weight, volatile compounds. This review will summarize the use of analytical methods to detect and identify compounds in order to elucidate the relationship between specific dietary proteinaceous substrates, their corresponding metabolites, and implications for gastrointestinal health.
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Affiliation(s)
- Edna P Nyangale
- The University of Reading, Food and Nutritional Sciences, Whiteknights, PO Box 226, Reading RG6 6AP, United Kingdom.
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Es-haghi A, Baghernejad M, Bagheri H. In situ solid-phase microextraction and post on-fiber derivatization combined with gas chromatography–mass spectrometry for determination of phenol in occupational air. Anal Chim Acta 2012; 742:17-21. [DOI: 10.1016/j.aca.2012.01.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 01/02/2012] [Accepted: 01/02/2012] [Indexed: 10/14/2022]
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10
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Development of a fluorescence-based microplate method for the determination of volatile fatty acids in anaerobically digested and sewage sludges. Talanta 2012; 88:230-6. [DOI: 10.1016/j.talanta.2011.10.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2011] [Revised: 09/23/2011] [Accepted: 10/12/2011] [Indexed: 10/15/2022]
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11
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Odour-causing organic compounds in wastewater treatment plants: Evaluation of headspace solid-phase microextraction as a concentration technique. J Chromatogr A 2011; 1218:4863-8. [DOI: 10.1016/j.chroma.2011.02.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 02/08/2011] [Accepted: 02/09/2011] [Indexed: 11/18/2022]
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12
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Classification of bacteria by simultaneous methylation–solid phase microextraction and gas chromatography/mass spectrometry analysis of fatty acid methyl esters. Anal Bioanal Chem 2010; 397:2959-66. [DOI: 10.1007/s00216-010-3840-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2010] [Revised: 04/26/2010] [Accepted: 05/10/2010] [Indexed: 11/25/2022]
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13
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On-line analysis of volatile fatty acids in anaerobic treatment processes. Anal Chim Acta 2010; 668:74-9. [DOI: 10.1016/j.aca.2009.12.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2009] [Revised: 12/08/2009] [Accepted: 12/15/2009] [Indexed: 11/22/2022]
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14
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Robert-Peillard F, Palacio-Barco E, Dudal Y, Coulomb B, Boudenne JL. Alternative Spectrofluorimetric Determination of Short-Chain Volatile Fatty Acids in Aqueous Samples. Anal Chem 2009; 81:3063-70. [DOI: 10.1021/ac802768u] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fabien Robert-Peillard
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Edwin Palacio-Barco
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Yves Dudal
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Bruno Coulomb
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
| | - Jean-Luc Boudenne
- Laboratoire Chimie Provence-UMR 6264, Université d’Aix-Marseille I, II, III-CNRS, 3 Place Victor Hugo, Case 29, 13331 Marseille Cedex 3, France, and INRA-SupAgro, Laboratoire Biogéochimie du Sol et de la Rhizosphère-UMR1222, 2 Place Viala, Bâtiment 12, 34080 Montpellier Cedex 2, France
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