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Wang JX, Zhang PL, Gopala L, Lv JS, Lin JM, Zhou CH. A Unique Hybridization Route to Access Hydrazylnaphthalimidols as Novel Structural Scaffolds of Multitargeting Broad-Spectrum Antifungal Candidates. J Med Chem 2024; 67:8932-8961. [PMID: 38814290 DOI: 10.1021/acs.jmedchem.4c00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
This study developed a class of novel structural antifungal hydrazylnaphthalimidols (HNs) with multitargeting broad-spectrum potential via multicomponent hybridization to confront increasingly severe fungal invasion. Some prepared HNs exhibited considerable antifungal potency; especially nitrofuryl HN 4a (MIC = 0.001 mM) exhibited a potent antifungal activity against Candida albicans, which is 13-fold higher than that of fluconazole. Furthermore, nitrofuryl HN 4a displayed low cytotoxicity, hemolysis and resistance, as well as a rapid fungicidal efficacy. Preliminary mechanistic investigations revealed that nitrofuryl HN 4a could inhibit lactate dehydrogenase to decrease metabolic activity and promote the accumulation of reactive oxygen species, leading to oxidative stress. Moreover, nitrofuryl HN 4a did not exhibit membrane-targeting ability; it could embed into DNA to block DNA replication but could not cleave DNA. These findings implied that HNs are promising as novel structural scaffolds of potential multitargeting broad-spectrum antifungal candidates for treating fungal infection.
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Affiliation(s)
- Jin-Xin Wang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Peng-Li Zhang
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Lavanya Gopala
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Jing-Song Lv
- College of Chemical Engineering, Guizhou University of Engineering Science, Bijie 551700, China
| | - Jian-Mei Lin
- Department of Infections, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu 610072, China
| | - Cheng-He Zhou
- Institute of Bioorganic & Medicinal Chemistry, Key Laboratory of Applied Chemistry of Chongqing Municipality, School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
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2
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Richard S, Shabashini A, Panja SK, Chandra Nandi G. A near-infrared (NIR) organic probe for rapid naked-eye detection of fluoride ions in aqueous medium. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3306-3310. [PMID: 38757154 DOI: 10.1039/d4ay00812j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
A dihydroxy-substituted tricyanopyrroline-based near-infrared (NIR) colorimetric probe (TCP-34Hy) is developed for the effective detection of fluoride ions in aqueous medium in the presence of Ca2+ ions. The naked-eye detection (drastic color change) selectively makes the NIR colorimetric sensor more efficient. The probe can detect fluoride ions from inorganic sources (NaF/KF) as well as organic sources (TBAF) in water. The water samples from different sources, such as tap, pond, river, and sewage, have been tested successfully for fluoride ion detection using the probe (TCP-34Hy). Investigations of different kinds of soil samples (clay soil, red soil, and river sand) after pre-treatment with NaF are also productive for detection of fluoride ions in water. The probe can also detect fluoride ions in toothpaste in aqueous medium. The role of Ca2+ is discussed and explained on the basis of experimental results. Additionally, the probe (TCP-34Hy) shows high selectivity towards fluoride ion detection with a LOD of 2.3 μM (0.052 ppm) in aqueous medium.
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Affiliation(s)
- Sathiaraj Richard
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, 620015, Tamil Nadu, India.
| | - Arivalagan Shabashini
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, 620015, Tamil Nadu, India.
| | - Sumit Kumar Panja
- Tarsadia Institute of Chemical Science, Uka Tarsadia University, Maliba Campus, Gopal Vidyanagar, Bardoli, Mahuva Road, Surat-394350, Gujarat, India
| | - Ganesh Chandra Nandi
- Department of Chemistry, National Institute of Technology-Tiruchirappalli, 620015, Tamil Nadu, India.
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3
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M R, Kulkarni RM, Sunil D. Small Molecule Optical Probes for Detection of H 2S in Water Samples: A Review. ACS OMEGA 2024; 9:14672-14691. [PMID: 38585100 PMCID: PMC10993273 DOI: 10.1021/acsomega.3c08573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 04/09/2024]
Abstract
Hydrogen sulfide (H2S) is closely linked to not only environmental hazards, but also it affects human health due to its toxic nature and the exposure risks associated with several occupational settings. Therefore, detection of this pollutant in water sources has garnered immense importance in the analytical research arena. Several research groups have devoted great efforts to explore the selective as well as sensitive methods to detect H2S concentrations in water. Recent studies describe different strategies for sensing this ubiquitous gas in real-life water samples. Though many of the designed and developed H2S detection approaches based on the use of organic small molecules facilitate qualitative/quantitative detection of the toxic contaminant in water, optical detection has been acknowledged as one of the best, attributed to the simple, highly sensitive, selective, and good repeatability features of the technique. Therefore, this review is an attempt to offer a general perspective of easy-to-use and fast response optical detection techniques for H2S, fluorimetry and colorimetry, over a wide variety of other instrumental platforms. The review affords a concise summary of the various design strategies adopted by various researchers in constructing small organic molecules as H2S sensors and offers insight into their mechanistic pathways. Moreover, it collates the salient aspects of optical detection techniques and highlights the future scope for prospective exploration in this field based on the limitations of the existing H2S probes.
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Affiliation(s)
- Ranjana M
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of
Higher Education, Manipal, Karnataka, India 576104
| | - Rashmi M. Kulkarni
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of
Higher Education, Manipal, Karnataka, India 576104
| | - Dhanya Sunil
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of
Higher Education, Manipal, Karnataka, India 576104
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Ahmad Wagay S, Riaz U, Alam M, Ali R. Evaluation of naked-eye sensing and anion binding studies in meso-fluorescein substituted one-walled calix[4]pyrrole (C4P). RSC Adv 2024; 14:7786-7796. [PMID: 38444971 PMCID: PMC10912976 DOI: 10.1039/d3ra08362d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Accepted: 02/23/2024] [Indexed: 03/07/2024] Open
Abstract
In this paper, we have design, synthesized and fully characterized a new meso-fluorescein substituted one-walled calix[4]pyrrole (C4P7), obtained from simple and easily available starting materials such as fluorescein, 4-hydroxyacetophenone and pyrrole. The anion sensing studies reveal that the C4P7 system displays selective and sensitive naked-eye sensing towards fluoride, phosphate, and acetate anions with the limit of detection of 4.27 mg L-1, 6.4 mg L-1, and 5.94 mg L-1, respectively. Moreover, the C4P7 receptor displays good results of binding (host-guest, 1 : 1) towards a variety of anions. The 1 : 1 binding stoichiometry was further confirmed by means of Job's plots. TD-DFT calculations showed that the HOMO-LUMO gap decreases in all the complexes (C4P7@anions) in comparison to the free C4P7 system. The authors are of the opinion that this work may provide a good platform to explore calix[4]pyrrole chemistry in the arena of recognition/sensing of biologically significant analytes in future studies.
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Affiliation(s)
- Shafieq Ahmad Wagay
- Department of Chemistry, Organic and Supramolecular Functional Materials Research Laboratory, Jamia Millia Islamia Okhla New Delhi 110025 India +91-7011867613
| | - Ufana Riaz
- Department of Chemistry and Biochemistry, North Carolina Central University 27707 USA
| | - Manawwer Alam
- Department of Chemistry, College of Science, King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Rashid Ali
- Department of Chemistry, Organic and Supramolecular Functional Materials Research Laboratory, Jamia Millia Islamia Okhla New Delhi 110025 India +91-7011867613
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5
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Ghorbanian M, Asghari S, Tajbakhsh M. A new benzothiazole azo dye colorimetric chemosensor for detecting Pb 2+ ion. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 296:122652. [PMID: 36989695 DOI: 10.1016/j.saa.2023.122652] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 06/19/2023]
Abstract
In this work, a new benzothiazole azo dye sensor (BTS) was synthesized, and its cation binding affinity was studied using the colorimetric method, UV-vis, and 1H NMR spectral data. The results revealed that the sensor BTS exhibits a remarkable tendency for Pb2+ ion to perform spontaneous visual color change from blue (BTS) to pink (BTS + Pb2+), without any color change in the aqueous solutions of other cations such as Hg2+, Cu2+, Al3+, Ni2+, Cd2+, Ag+, Ba2+, K+, Co2+, Mg2+, Na+, Ca2+, Fe2+, and Fe3+ ions. The observed selectivity could be due to the formation of the complex (BTS + Pb2+), which led to a blue shift from 586 nm (BTS) to 514 nm (BTS + Pb2+) in the UV spectrum. The job's plot provided the stoichiometry ratio of the complex (BTS + Pb2+) to be 1:1. The limit of detection (LOD) of BTS for Pb2+ ion sensing was obtained at 0.67 µM. Additionally, the binding constant for BTS toward Pb 2+ ion was studied using the Benesi-Hildebrand equation. As a result of the BTS test paper strips investigations, it was found that the synthesized sensor BTS could be used as a rapid colorimetric chemosensor for the detection of the Pb2+ ions in the distilled, tap, and sea waters.
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Affiliation(s)
- Moein Ghorbanian
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar 47416-95447, Iran.
| | - Sakineh Asghari
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar 47416-95447, Iran.
| | - Mahmood Tajbakhsh
- Department of Organic Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar 47416-95447, Iran.
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6
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Kumari M, Dasgupta S, Panda S, Bera SK, Datta A, Lahiri GK. Unique Metal-Ligand Interplay in Directing Discrete and Polymeric Derivatives of Isomeric Azole-Carboxylate. Varying Electronic Form, C-C Coupling, and Receptor Feature. Inorg Chem 2023; 62:7779-7794. [PMID: 37163348 DOI: 10.1021/acs.inorgchem.3c00418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
This article dealt with the ruthenium and osmium derivatives of isomeric 1H-indazole-3-carboxylic acid/2H-indazole-3-carboxylic acid (H2L1) and 1H-benzimidazole-2-carboxylic acid (H2L2) along with the π-acidic bpy (bpy = 2,2'-bipyridine) and pap (pap = 2-phenylazopyridine) co-ligands. It thus extended structurally authenticated monomeric ([(bpy)2RuII(HL1-)]ClO4 [1]ClO4, (pap)2RuII(L12-) 2, (bpy)2OsII(L12-) 3, (pap)2OsII(L12-) 4, (bpy)2RuII(L22-) 5, (bpy)2OsII(L22-) 8, and (pap)2OsII(L22-) 9) and dimeric ([(bpy)2RuII(μ-L22-)RuII(bpy)2](ClO4)2 [6](ClO4)2) complexes. It also described modified L2'2- (L2'2- = 2,2'-bisbenzimidazolate)-bridged [(pap)2RuII(μ-L2'2-)RuII(pap)2](ClO4)2 [7](ClO4)2, where L2'2- was developed selectively with the {Ru(pap)2} metal fragment via in situ intermolecular C-C coupling of the two units of decarboxylated benzimidazolate. Moreover, chemical oxidation (OsII to OsIII) of (bpy)2OsII(L12-) 3 (E0 = 0.11 V versus SCE) and (bpy)2OsII(L22-) 8 (E0 = 0.12 V versus SCE) by AgClO4 yielded unprecedented OsIII-AgI derived polymeric {[(bpy)2OsIII-L12--AgI(CH3CN)](ClO4)2}n {[10](ClO4)2}n and dimeric [(bpy)2OsIII-L22--AgI(CH3CN)](ClO4)2 [11](ClO4)2 complexes as a function of trans and cis orientations of the active N2 donor with special reference to the carboxylate O2 of L2-, respectively. Microscopic (FE-SEM, TEM-EDX, and AFM) and DLS experiments suggested a homogeneously dispersed hollow spherical shaped morphology of {[10](ClO4)2}n with an average particle size of 200-400 nm as well as its non-dissociative feature in the aprotic medium. Experimental (structure, spectroscopy, and electrochemistry) and theoretical (DFT/TD-DFT) explorations revealed a redox non-innocent feature of L2- in the present coordination situations and the selective anion sensing (X = F-, CN-, and OAc-) event of [1]ClO4 involving a free NH group at the backface of HL1-, which proceeded via the NH···X hydrogen bonding interaction.
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Affiliation(s)
- Maya Kumari
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Souradip Dasgupta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sanjib Panda
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sudip Kumar Bera
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Anindya Datta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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7
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Synthesis of Fluorescent, Dumbbell-Shaped Polyurethane Homo- and Heterodendrimers and Their Photophysical Properties. Int J Mol Sci 2023; 24:ijms24021662. [PMID: 36675178 PMCID: PMC9866862 DOI: 10.3390/ijms24021662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/18/2023] Open
Abstract
Fluorescent dendrimers have wide applications in biomedical and materials science. Here, we report the synthesis of fluorescent polyurethane homodendrimers and Janus dendrimers, which often pose challenges due to the inherent reactivity of isocyanates. Polyurethane dendrons (G1-G3) were synthesized via a convergent method using a one-pot multicomponent Curtius reaction as a crucial step to establish urethane linkages. The alkyne periphery of the G1-G3 dendrons was modified by a copper catalyzed azide-alkyne click reaction (CuAAC) to form fluorescent dendrons. In the reaction of the surfaces functionalized two different dendrons with a difunctional core, a mixture of three dendrimers consisting of two homodendrimers and a Janus dendrimer were obtained. The Janus dendrimer accounted for a higher proportion in the products' distribution, being as high as 93% for G3. The photophysical properties of Janus dendrimers showed the fluorescence resonance energy transfer (FRET) from one to the other fluorophore of the dendrimer. The FRET observation accompanied by a large Stokes shift make these dendrimers potential candidates for the detection and tracking of interactions between the biomolecules, as well as potential candidates for fluorescence imaging.
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8
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Squaramide-Naphthalimide Conjugates – Exploiting Self-Aggregation Effects in Acetate Recognition. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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9
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Head vs. Tail Squaramide–Naphthalimide Conjugates: Self-Assembly and Anion Binding Behaviour. CHEMISTRY 2022. [DOI: 10.3390/chemistry4040085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The syntheses of two squaramide–naphthalimide conjugates (SN1 and SN2) are reported; the structures of SN1 and SN2 differ by the attachment of a squaramide—either at the ‘head’ or the ‘tail’ of the naphthalimide fluorophore. Both compounds displayed weak fluorescence due to the inclusion of a nitro-aromatic squaramide which efficiently quenches the emission of the naphthalimide. Both compounds were also shown to undergo self-aggregation as studied by 1H NMR and scanning electron microscopy (SEM). Furthermore, SN1 and SN2 gave rise to stark colourimetric changes in response to basic anions such as AcO−, SO42− HPO42−, and F−. The observed colour changes are thought to be due to deprotonation of a squaramide NH. The same basic anions also result in a further quenching of the naphthalimide emission. No colour change or emission modulations were observed in the presence of Cl−; however, 1H NMR studies suggest that moderate H-bonding occurs between this anion and both SN1 and SN2.
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Balagurusamy B, Ilayaperumal P, Chellaiah R. Photometric and Colorimetric Cyanide Detection Sensor Using Amine Based Nitrobenzoxadiazole Derivatives. ChemistrySelect 2022. [DOI: 10.1002/slct.202201969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Balajothi Balagurusamy
- Department of Chemistry Bishop Heber College Trichy 620 017 INDIA
- School of Chemistry Bharathidasan University Trichy 620 024 INDIA
| | - Pradeep Ilayaperumal
- Department of Chemistry Bishop Heber College Trichy 620 017 INDIA
- Department of Chemistry Indian Institute of Technology Delhi New Delhi 110 016 INDIA
| | - Raja Chellaiah
- Department of Chemistry Bishop Heber College Trichy 620 017 INDIA
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11
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Coşkuner Filiz B, Basaran Elalmis Y, Bektaş İS, Kantürk Figen A. Fabrication of stable electrospun blended chitosan-poly(vinyl alcohol) nanofibers for designing naked-eye colorimetric glucose biosensor based on GOx/HRP. Int J Biol Macromol 2021; 192:999-1012. [PMID: 34655587 DOI: 10.1016/j.ijbiomac.2021.10.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 09/14/2021] [Accepted: 10/07/2021] [Indexed: 02/06/2023]
Abstract
In this study, designing of a stable electrospun blended chitosan (CS)-poly(vinyl alcohol) (PVA) nanofibers for colorimetric glucose biosensing in an aqueous medium was investigated. CS and PVA solutions were blended to acquire an optimum content (CS/PVA:1/4) and electrospunned to obtain uniform and bead-free CS/PVA nanofiber structures following the optimization of the electrospinning parameters (33 kV, 20 cm, and 1.2 ml.h-1). Crosslinking process applied subsequently provided mechanically and chemically stable nanofibers with an average diameter of 378 nm. The morphological homogeneity, high fluid absorption ability (>%50), thermal (<230 °C) and morphological stability, surface hydrophilicity and degrability properties of cross-linked CS/PVA nanofiber demonstrated their great potential to be developed as an eye-readable strip for biosensing applications. The glucose oxidase (GOx) and horseradish peroxidase (HRP) was immobilized by physical adsorption on the cross-linked CS/PVA nanofiber. The glucose assay analysis by ultraviolet-visible (UV-Vis) spectrophotometry using the same enzymatic system of the proposed glucose strips in form of absorbance versus concentration plot was found to be linear over a glucose concentration range of 2.7 to 13.8 mM. The prepared naked eye colorimetric glucose detection strips, with lower detection limit of 2.7 mM, demonstrated dramatic color change from white (0 mM) to brownish-orange (13.8 mM). The developed cross-linked CS/PVA nanofiber strips, prepared by electrospinnig procedure, could be easily adapted to a color map, as an alternative material for glucose sensing. Design of a practical, low-cost, and environmental-friendly bio-based CS/PVA testing strips for eye readable detection were presented and suggested as an applicable medium for a wide range of glucose concentrations.
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Affiliation(s)
- Bilge Coşkuner Filiz
- Yıldız Technical University, Metallurgy and Materials Engineering Department, İstanbul 34210, Turkey.
| | | | - İrem Serra Bektaş
- Yıldız Technical University, Chemical Engineering Department, İstanbul 34210, Turkey
| | - Aysel Kantürk Figen
- Yıldız Technical University, Chemical Engineering Department, İstanbul 34210, Turkey
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12
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Mathew MM, Sreekanth A. N4-dibenzosuberene substituted thiosemicarbazones based targetable fluorescent probe for multi-anion recognition. J CHEM SCI 2021. [DOI: 10.1007/s12039-021-01942-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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13
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Kumawat LK, Wynne C, Cappello E, Fisher P, Brennan LE, Strofaldi A, McManus JJ, Hawes CS, Jolliffe KA, Gunnlaugsson T, Elmes RBP. Squaramide-Based Self-Associating Amphiphiles for Anion Recognition. Chempluschem 2021; 86:1058-1068. [PMID: 34351081 PMCID: PMC8456826 DOI: 10.1002/cplu.202100275] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 07/08/2021] [Indexed: 12/03/2022]
Abstract
The synthesis and characterisation of two novel self-assembled amphiphiles (SSAs) SQS-1 and SQS-2 are reported. Both compounds, based on the squaramide motif, were fully soluble in a range of solvents and were shown to undergo self-assembly through a range of physical techniques. Self-assembly was shown to favour the formation of crystalline domains on the nanoscale but also fibrillar film formation, as suggested by SEM analysis. Moreover, both SQS-1 and SQS-2 were capable of anion recognition in DMSO solution as demonstrated using 1 H NMR and UV/Vis absorption spectroscopy, but displayed lower binding affinities for various anions when compared against other squaramide based receptors. In more competitive solvent mixtures SQS-1 gave rise to a colourimetric response in the presence of HPO42- that was clearly visible to the naked eye. We anticipate that the observed response is due to the basic nature of the HPO42- anion when compared against other biologically relevant anions.
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Affiliation(s)
- Lokesh K. Kumawat
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Conor Wynne
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
| | - Emanuele Cappello
- School of ChemistryTrinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
| | - Peter Fisher
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Luke E. Brennan
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Alessandro Strofaldi
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
| | - Jennifer J. McManus
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
- HH Wills Physics LaboratoryUniversity of BristolTyndall AvenueBristolBS8 1TLUnited Kingdom
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
| | - Chris S. Hawes
- School of Chemical and Physical SciencesKeele UniversityKeeleST5 5BGUnited Kingdom
| | | | - Thorfinnur Gunnlaugsson
- School of ChemistryTrinity Biomedical Sciences Institute (TBSI)Trinity College DublinThe University of DublinDublin 2Ireland
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
| | - Robert B. P. Elmes
- Department of ChemistryMaynooth UniversityNational University of IrelandMaynoothCo. KildareIreland
- Kathleen Lonsdale Institute for Human Health ResearchMaynooth UniversityMaynoothCo. KildareIreland
- Synthesis and Solid State Pharmaceutical Centre (SSPC)Ireland
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14
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Maslowska-Jarzyna K, Korczak ML, Wagner JA, Chmielewski MJ. Carbazole-Based Colorimetric Anion Sensors. Molecules 2021; 26:3205. [PMID: 34071969 PMCID: PMC8199442 DOI: 10.3390/molecules26113205] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/18/2021] [Accepted: 05/24/2021] [Indexed: 12/02/2022] Open
Abstract
Owing to their strong carbazole chromophore and fluorophore, as well as to their powerful and convergent hydrogen bond donors, 1,8-diaminocarbazoles are amongst the most attractive and synthetically versatile building blocks for the construction of anion receptors, sensors, and transporters. Aiming to develop carbazole-based colorimetric anion sensors, herein we describe the synthesis of 1,8-diaminocarbazoles substituted with strongly electron-withdrawing substituents, i.e., 3,6-dicyano and 3,6-dinitro. Both of these precursors were subsequently converted into model diamide receptors. Anion binding studies revealed that the new receptors exhibited significantly enhanced anion affinities, but also significantly increased acidities. We also found that rear substitution of 1,8-diamidocarbazole with two nitro groups shifted its absorption spectrum into the visible region and converted the receptor into a colorimetric anion sensor. The new sensor displayed vivid color and fluorescence changes upon addition of basic anions in wet dimethyl sulfoxide, but it was poorly selective; because of its enhanced acidity, the dominant receptor-anion interaction for most anions was proton transfer and, accordingly, similar changes in color were observed for all basic anions. The highly acidic and strongly binding receptors developed in this study may be applicable in organocatalysis or in pH-switchable anion transport through lipophilic membranes.
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Affiliation(s)
| | | | | | - Michał J. Chmielewski
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland; (K.M.-J.); (M.L.K.); (J.A.W.)
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15
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Wang X, Bai T, Chu T. A molecular design for a turn-off NIR fluoride chemosensor. J Mol Model 2021; 27:104. [PMID: 33686496 DOI: 10.1007/s00894-021-04716-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/17/2021] [Indexed: 12/23/2022]
Abstract
We designed a turn-off near-infrared fluorescent fluoride chemosensor NIR-BODIPY-Si through the density functional theory/time-dependent functional theory calculations. In the designed sensor, the tert-butyldimethylsilyloxy moiety responses to the fluoride-triggered desilylation process, and the BODIPY dye serves as fluorophore. The molecular design firstly showed that the possibility of photoinduced electron transfer is low/high in NIR-BODIPY-Si/NIR-BODIPY-O (the desilylation product), thus referring that the fluorescence sensing mechanism is a photoinduced electron transfer mechanism that quenched the sensor's fluorescence after detection of fluoride anions. Absorption and emission spectra further demonstrated that the designed sensor is a near-infrared chemosensor. The largest binding energy between NIR-BODIPY-Si and F- suggests that the sensor has an excellent selectivity to F- and the low barrier of the desilylation reaction accounts for the sensor's rapid response speed to F-. We also provided the synthetic routine for the molecule sensor, with the expectation that this molecular design can shed some light on the experimentally based design procedure.
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Affiliation(s)
- Xiaochen Wang
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, 266235, People's Republic of China
| | - Tianxin Bai
- Institute of Molecular Sciences and Engineering, Shandong University, Qingdao, 266235, People's Republic of China
| | - Tianshu Chu
- School of Physics, Qingdao University, Qingdao, 266071, People's Republic of China.
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17
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Rahman S, Tomiyasu H, Wang CZ, Georghiou PE, Alodhayb A, Carpenter-Warren CL, Elsegood MRJ, Teat SJ, Redshaw C, Yamato T. Allosteric binding properties of a 1,3-alternate thiacalix[4]arene-based receptor having phenylthiourea and 2-pyridylmethyl moieties on opposite faces. NEW J CHEM 2021. [DOI: 10.1039/d1nj02991f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Thiacalix[4]arene receptors with two thiourea moieties and two 2-pyridyl moieties exhibited a heteroditopic dinuclear receptor with F− and Ag+ ions by a positive allosteric effect.
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Affiliation(s)
- Shofiur Rahman
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga 840-8502, Japan
- Department of Chemistry, Memorial University of Newfoundland St. John's, Newfoundland and Labrador, A1B 3X7, Canada
| | - Hirotsugu Tomiyasu
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga 840-8502, Japan
| | - Chuan-Zeng Wang
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga 840-8502, Japan
- School of Chemical Engineering, Shandong University of Technology, Zibo 255049, P. R. China
| | - Paris E. Georghiou
- Department of Chemistry, Memorial University of Newfoundland St. John's, Newfoundland and Labrador, A1B 3X7, Canada
| | - Abdullah Alodhayb
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | | | - Simon J. Teat
- ALS, Berkeley Lab, 1 Cyclotron Road, Bereleley, CA, 94720, USA
| | - Carl Redshaw
- Department of Chemistry, The University of Hull, HU6 7RX, UK
| | - Takehiko Yamato
- Department of Applied Chemistry, Faculty of Science and Engineering, Saga University, Honjo-machi 1, Saga 840-8502, Japan
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18
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Multi-Responsive Polysiloxane/Poly( N-isopropylacrylamide) Interpenetrating Networks Containing Urea and Thiourea Groups. Polymers (Basel) 2020; 12:polym12051175. [PMID: 32443903 PMCID: PMC7284717 DOI: 10.3390/polym12051175] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/14/2020] [Accepted: 05/18/2020] [Indexed: 11/23/2022] Open
Abstract
Novel interpenetrating polymer networks (IPNs) were synthesized from N-isopropylacrylamide (NIPAM) and polysiloxanes containing a urea or thiourea side group, in addition to the silanol residue, through two reactions, such as the radical gelation of NIPAM and the condensation of silanols to form a siloxane linkage. The obtained IPNs showed a typical temperature-responsive volume change in water based on the constructed poly-NIPAM gel component. In addition, the characteristic color and volume changes responding to chemical stimuli, such as acetate and/or fluoride ions, based on the introduced urea and thiourea groups onto the polysiloxane gel were observed in N,N-dimethylformamide.
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Kianfar M, Mohammadi A. A simple and sensitive thiazole-based colorimetric chemosensor for detection of CN−, AcO− and Cu2+ ions. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01867-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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20
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Murfin LC, Chiang K, Williams GT, Lyall CL, Jenkins ATA, Wenk J, James TD, Lewis SE. A Colorimetric Chemosensor Based on a Nozoe Azulene That Detects Fluoride in Aqueous/Alcoholic Media. Front Chem 2020; 8:10. [PMID: 32064247 PMCID: PMC7000628 DOI: 10.3389/fchem.2020.00010] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/07/2020] [Indexed: 01/16/2023] Open
Abstract
Colorimetry is an advantageous method for detecting fluoride in drinking water in a resource-limited context, e. g., in parts of the developing world where excess fluoride intake leads to harmful health effects. Here we report a selective colorimetric chemosensor for fluoride that employs an azulene as the reporter motif and a pinacolborane as the receptor motif. The chemosensor, NAz-6-Bpin, is prepared using the Nozoe azulene synthesis, which allows for its rapid and low-cost synthesis. The chemosensor gives a visually observable response to fluoride both in pure organic solvent and also in water/alcohol binary solvent mixtures.
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Affiliation(s)
- Lloyd C Murfin
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - Kirstie Chiang
- Department of Chemistry, University of Bath, Bath, United Kingdom.,School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore, Singapore
| | | | - Catherine L Lyall
- Materials and Chemical Characterization (MC2), University of Bath, Bath, United Kingdom
| | - A Toby A Jenkins
- Department of Chemistry, University of Bath, Bath, United Kingdom
| | - Jannis Wenk
- Department of Chemical Engineering and Water Innovation & Research Centre, University of Bath, Bath, United Kingdom.,Centre for Sustainable Chemical Technologies, University of Bath, Bath, United Kingdom
| | - Tony D James
- Department of Chemistry, University of Bath, Bath, United Kingdom.,Centre for Sustainable Chemical Technologies, University of Bath, Bath, United Kingdom
| | - Simon E Lewis
- Department of Chemistry, University of Bath, Bath, United Kingdom.,Centre for Sustainable Chemical Technologies, University of Bath, Bath, United Kingdom
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21
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Dual fluorometric and colorimetric sensor based on quenching effect of copper (II) sulfate on the copper nanocluster for determination of sulfide ion in water samples. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.112030] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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22
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Aletti AB, Blasco S, Aramballi SJ, Kruger PE, Gunnlaugsson T. Sulfate-Templated 2D Anion-Layered Supramolecular Self-Assemblies. Chem 2019. [DOI: 10.1016/j.chempr.2019.06.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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23
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Singh A, Girish Gowda R, Trivedi DR. Substituent effect on colorimetric detection of biologically and environmentally relevant anions: Insight in real-life applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 219:517-529. [PMID: 31078819 DOI: 10.1016/j.saa.2019.04.087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 04/30/2019] [Accepted: 04/30/2019] [Indexed: 06/09/2023]
Abstract
A new set of chromogenic anion receptors R1-R4 have been synthesized with a different substituent, including electron withdrawing (nitro moiety in R1), conjugated group (naphthyl in R2), and electron donating (methyl in R3), respectively. The receptors R1-R4 exhibited very good sensitivity towards the F- and AcO- anions in the DMSO. In addition, R1 showed selectivity towards H2PO4- ions over other tested anions. R1 especially acted as an effective sensor for sodium salts of F-, AcO-, AsO2-, and AsO42- ions in an aqueous medium due to the presence of two electron-withdrawing nitro substituents, which showed hydrogen bond donor tendency and acidity of the OH proton. This result indicates that R1 is highly capable of competing with an aqueous medium to detect anions without counter Na+ ion interference. Interestingly, R1 displays solvatochromic property in the presence of AcO- ions in different aprotic solvents. Additionally, the receptor R1 shows high binding affinity towards AcO- ions in the buffer medium (DMSO: HEPES, 9:1 v/v), which displayed remarkable colour change from pale yellow to blue with a large ∆λred shift of 170 nm. The CV studies reveal the deprotonation of the -NH proton upon interaction with the AcO- ions. The receptor R1 is subjected to practical application to sense F- and AsO2- ions using the test strip. In addition, the receptor R1 proves itself as a potential applicant for the detection of F- ions quantitatively in commercially available mouthwash.
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Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India
| | - R Girish Gowda
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India; Sri Dharmasthala Manjunatheshwara College (Autonomous), Ujire, 574240, Karnataka, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India.
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24
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Wu X, Wang P, Turner P, Lewis W, Catal O, Thomas DS, Gale PA. Tetraurea Macrocycles: Aggregation-Driven Binding of Chloride in Aqueous Solutions. Chem 2019. [DOI: 10.1016/j.chempr.2019.02.023] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Fixation of atmospheric CO2 and recognition of anions/hydrated anions: Differential binding mode in protonated vs. neutral tripodal urea/thiourea receptors. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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26
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Balamurugan R, Liu JH, Liu BT. A review of recent developments in fluorescent sensors for the selective detection of palladium ions. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.07.017] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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A simple colorimetric chemosensor with highly performance for detection of cyanide and copper ions and its practical application in real samples. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2018.08.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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28
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Zhou K, Ren M, Wang L, Li Z, Lin W. A targetable fluorescent probe for real-time monitoring of fluoride ions in mitochondria. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 204:777-782. [PMID: 30007885 DOI: 10.1016/j.saa.2018.05.054] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/06/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Fluorion are pivotal anions in biology because they play an important role in dental care, treating osteoporosis, preventing tooth decay and promoting the healthy growth of bone. Studies have shown that high levels of fluoride will lead to the inactivation of the mitochondria. Therefore, it is urgent to develop a method to detect the fluoride anions in the mitochondria. Herein, we have developed a novel mitochondrial-target fluorescent probe for detecting F- in living cells. The probe exhibited excellent sensitivity and high selectivity for F- over the other relative species. With changing fluoride ions, the fluorescence spectrum of the probe changed significantly with a large turn-on fluorescence signal. Cell imaging indicated that the probe can penetrate viable cell membranes and rapidly detects and images fluorion over other anions in the mitochondria.
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Affiliation(s)
- Kai Zhou
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Mingguang Ren
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Li Wang
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Zihong Li
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Chemistry and Chemical Engineering, School of Materials Science and Engineering, University of Jinan, Jinan, Shandong 250022, PR China.
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29
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Calvino C, Piechowicz M, Rowan SJ, Schrettl S, Weder C. A Versatile Colorimetric Probe based on Thiosemicarbazide–Amine Proton Transfer. Chemistry 2018; 24:7369-7373. [DOI: 10.1002/chem.201801551] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Indexed: 01/24/2023]
Affiliation(s)
- Céline Calvino
- Adolphe Merkle Institute Chemin des Verdier 4 1700 Fribourg Switzerland
| | - Marek Piechowicz
- Department of ChemistryInstitute for Molecular EngineeringThe University of Chicago 5640 S Ellis Ave. Chicago Illinois 60637 USA
| | - Stuart J. Rowan
- Department of ChemistryInstitute for Molecular EngineeringThe University of Chicago 5640 S Ellis Ave. Chicago Illinois 60637 USA
| | - Stephen Schrettl
- Adolphe Merkle Institute Chemin des Verdier 4 1700 Fribourg Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute Chemin des Verdier 4 1700 Fribourg Switzerland
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30
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Sharma S, Singh Sran B, Singh N, Hundal G. From Dual to Discriminatory Sensing of CN-/F-Using Isomeric Molecules and Ascertained by Spectroscopic and DFT Methods. ChemistrySelect 2018. [DOI: 10.1002/slct.201702950] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Sanyog Sharma
- Department of Chemistry, UGC sponsored centre of advance studies-I; Guru Nanak Dev University; Amritsar- 143005, Punjab India
| | - Balkaran Singh Sran
- Department of Chemistry, UGC sponsored centre of advance studies-I; Guru Nanak Dev University; Amritsar- 143005, Punjab India
| | - Narinder Singh
- Department of Chemistry; Indian Institute of Technology Ropar; Rupnagar, Punjab 140001 India
| | - Geeta Hundal
- Department of Chemistry, UGC sponsored centre of advance studies-I; Guru Nanak Dev University; Amritsar- 143005, Punjab India
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31
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Goswami S, Das MK, Sain D, Goswami B. A concise treatment of pterins: some recent synthetic and methodology aspects and their applications in molecular sensors. Pteridines 2018. [DOI: 10.1515/pteridines-2018-0002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Abstract
A concise account of pterins in chemistry and biology and their applications in molecular sensors including their optical spectroscopic properties are described. Different natural, synthetic, biological and photophysical aspects are also discussed. Synthetic access to direct functionalised pterins and a recently reported new thiophene annulation technique are described for the synthesis of Form B of molybdenum cofactor. The receptor properties of fluorescent pterin molecules including selenopyrimidines which are rarely reported for their binding of anions and neutral molecules are also of major importance in this review. For such an old and still so young, unexplored pterin system on its power to be sensitive for physical studies especially the interaction with cations, anions and neutral molecules are fascinating and research in this area is relatively new and expected to increase fast. Pterin based receptors are for the first time put into a useful review for the advantage of those who want to explore pterin and modified pterin as chromogenic and fluorogenic sensors.
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Affiliation(s)
- Shyamaprosad Goswami
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal , India
| | - Manas Kumar Das
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal , India
| | - Dibyendu Sain
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal , India
| | - Bhaswati Goswami
- Department of Chemistry, Indian Institute of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal , India
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32
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Gupta K, Patra AK. A Luminescent pH-Responsive Ternary Europium(III) Complex of β-Diketonates and Terpyridine Derivatives as Sensitizing Antennae - Photophysical Aspects, Anion Sensing, and Biological Interactions. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201701495] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Kritika Gupta
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur Uttar Pradesh India
| | - Ashis K. Patra
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur Uttar Pradesh India
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Bao X, Wu X, Berry SN, Howe ENW, Chang YT, Gale PA. Fluorescent squaramides as anion receptors and transmembrane anion transporters. Chem Commun (Camb) 2018; 54:1363-1366. [PMID: 29354832 DOI: 10.1039/c7cc08706c] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
A series of squaramide-based anion transporters functionalised with the 1,8-naphthalimide fluorophore has been developed for improved ionophoric activity and fluorescent imaging in cells.
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Affiliation(s)
- Xiaoping Bao
- Chemistry, University of Southampton, Southampton, SO17 1BJ, UK
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34
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Pramanik K, Ghosh P, Dey D, Malpaharia P, Chandra SK, Mukhopadhyay SK, Banerjee P. Chelator Probe with Exceptionally High Stokes Shift for Selective Detection of OAc−
with Red Emission: Application as a Biosensor. ChemistrySelect 2018. [DOI: 10.1002/slct.201702386] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Koushik Pramanik
- Department of Chemistry; Visva-Bharati University; Santiniketan 731235 India
| | - Pritam Ghosh
- Surface Engineering & Tribology Group; CSIR-Central Mechanical Engineering Research Institute; Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
| | - Debanjan Dey
- Surface Engineering & Tribology Group; CSIR-Central Mechanical Engineering Research Institute; Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
- Academy of Scientific & Innovative Research (AcSIR) in CSIR-CMERI; CSIR-Central Mechanical Engineering Research Institute; Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
| | - Pijush Malpaharia
- Department of Chemistry; Visva-Bharati University; Santiniketan 731235 India
| | - Swapan K Chandra
- Department of Chemistry; Visva-Bharati University; Santiniketan 731235 India
| | | | - Priyabrata Banerjee
- Surface Engineering & Tribology Group; CSIR-Central Mechanical Engineering Research Institute; Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
- Academy of Scientific & Innovative Research (AcSIR) in CSIR-CMERI; CSIR-Central Mechanical Engineering Research Institute; Mahatma Gandhi Avenue Durgapur 713209, West Bengal India
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35
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Singh A, Sahoo SK, Trivedi DR. Colorimetric anion sensors based on positional effect of nitro group for recognition of biologically relevant anions in organic and aqueous medium, insight real-life application and DFT studies. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 188:596-610. [PMID: 28779621 DOI: 10.1016/j.saa.2017.07.051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 07/17/2017] [Accepted: 07/28/2017] [Indexed: 05/24/2023]
Abstract
A new six colorimetric receptors A1-A6 were designed and synthesized, characterized by typical common spectroscopic techniques like FT-IR, UV-Visible, 1H NMR, 13C NMR and ESI-MS. The receptor A1 and A2 exhibit a significant naked-eye response towards F- and AcO- ions in DMSO. Due to presences of the NO2 group at para and ortho position with extended π-conjugation of naphthyl group carrying OH as a binding site. Compared to receptor A2, A1 is extremely capable of detecting F- and AcO- ions present in the form of sodium salts in an aqueous medium. This is owed to the occurrence of NO2 group at para position induced in increasing the acidity of OH proton. Consequently, it easily gets deprotonated in aqueous media. The detection limit of receptor A1 was turned out to be 0.40 and 0.35ppm for F- and AcO- ions which is beneath WHO permission level (1.0ppm). Receptor A1 shows a solitary property of solvatochromism in different aprotic solvents in presence of AcO- ion. Receptor A1 depicts high selectivity towards AcO- ion in DMSO: HEPES buffer (9:1, v/v). Receptor A1 proved itself for real life application by detecting anion in solution and solid state. The binding mechanism of receptor A1 with AcO- and F- ions was monitored from 1HNMR titration and DFT study.
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Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India
| | - Suban K Sahoo
- Department of Applied Chemistry, S.V. National Institute Technology Surat, 395 007, Gujarat, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK) Surathkal, Srinivasnagar, 575 025, Karnataka, India.
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36
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Tarai A, Baruah JB. Four-coordinated see-sawN-(aryl)-2-(propan-2-ylidene)hydrazinecarbothioamide complexes of nickel(ii), copper(ii) and zinc(ii) and their propensity for catalytic cyclisation. Dalton Trans 2018; 47:4921-4930. [DOI: 10.1039/c8dt00453f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four-coordinated metal complexes of two hydrazinecarbothioamide-derived ligands with divalent nickel, copper and zinc are described and the selective reactivity difference of copper(ii) to cyclise the ligand or to form a complex is described.
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Affiliation(s)
- Arup Tarai
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati -781 039
- India
| | - Jubaraj B. Baruah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati -781 039
- India
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37
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38
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Madhusudhana Reddy P, Hsieh SR, Chen JK, Chang CJ, Kang JY, Chen CH. Robust, sensitive and facile method for detection of F -, CN - and Ac - anions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 186:8-16. [PMID: 28600993 DOI: 10.1016/j.saa.2017.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/23/2017] [Accepted: 06/05/2017] [Indexed: 06/07/2023]
Abstract
Sensing of F-, CN- and Ac- is important from the viewpoint of both medically and environmentally. Particularly, sensing of the anions in 100% water by a colorimetric chemical sensor is a highly difficult task as water molecules interfere the sensing mechanism. In this regard, sensor R1, having azo and nitrophenyl groups as signaling units and thiourea as a binding site was prepared. This sensor exclusively detected CN- ion over other testing anions in 30% aq. DMSO solution by exhibiting distinct spectral and visual color changes. However, in 15% aq. DMSO solution, R1 exhibited obvious spectral and color changes in response to F-, CN- and Ac-. On the other hand, we have also designed sensor, R2, having same signaling units of R1, but a different binding site of urea group. Surprisingly, in contrast to R1, R2 exhibited obvious spectral and color changes in 5% aq. DMSO solution only. Further, economically viable "test stripes" were prepared in a facile mode to detect the CN- in 100% aqueous solution. Such stripes can serve as a practical colorimetric probe for "in the field" detection of the ions and thus avoid additional expensive equipment.
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Affiliation(s)
- P Madhusudhana Reddy
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Shih-Rong Hsieh
- Department of Surgery, Taichung Veterans General Hospital, 1650 Taiwan Boulevard Section 4, Taichung 40705, Taiwan, ROC
| | - Jem-Kun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, 43, Sec.4, Keelung Rd, Taipei 106, Taiwan, ROC
| | - Chi-Jung Chang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC.
| | - Jing-Yuan Kang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Chih-Hsien Chen
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
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39
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Pangannaya S, Thimaradka V, Trivedi DR. Electroanalytical and spectral investigation of organic receptors as colorimetric and absorption ratiometric anion chemosensor. Supramol Chem 2017. [DOI: 10.1080/10610278.2017.1363392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Srikala Pangannaya
- Supramolecular Chemistry Laboratory, National Institute of Technology Karnataka (NITK), Surathkal, India
| | - Vikram Thimaradka
- Supramolecular Chemistry Laboratory, National Institute of Technology Karnataka (NITK), Surathkal, India
| | - Darshak R. Trivedi
- Supramolecular Chemistry Laboratory, National Institute of Technology Karnataka (NITK), Surathkal, India
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40
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Bhatt KD, Shah HD, Panchal M. A switch-off fluorescence probe towards Pb(II) and cu(II) ions based on a calix[4]pyrrole bearing amino-quinoline group. LUMINESCENCE 2017; 32:1398-1404. [DOI: 10.1002/bio.3336] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 03/08/2017] [Accepted: 03/09/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Keyur D. Bhatt
- Department of Chemistry; C.U. Shah University; Wadhwan Gujarat India
| | - Hemangini D. Shah
- Department of Chemistry; C.U. Shah University; Wadhwan Gujarat India
| | - Manthan Panchal
- Department of Chemistry. School of Sciences; Gujarat University; Ahmedabad Gujarat India
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41
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Insights into the complexation of N-Allyl-4-(4-(N-phenylureido)benzylamino)-1,8-naphthalimide with various anions. Sci Rep 2017; 7:2512. [PMID: 28566707 PMCID: PMC5451411 DOI: 10.1038/s41598-017-02470-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 04/11/2017] [Indexed: 11/20/2022] Open
Abstract
A new urea functionalised 4-amino-1,8-naphthalimide based fluorescent anion sensor was synthesised in 64% yield over three steps. Fluorescence and 1H NMR titrations showed that the sensor complexes strongly with acetate and dihydrogen phosphate and to a lesser extent bromide. The corresponding binding stoichiometries were examined using 1H NMR titrations. Results show that the sensor molecule initially forms 1:1 complexes through hydrogen bonding to the urea moiety, followed by secondary complexation to form higher order host:guest stoichiometries. Specifically, oxyanions complex to the sensor via hydrogen bonding through synergistic aryl C-H and N-H anion interactions in a 1:2 sensor:oxyanion arrangement. Furthermore, 2:1 sensor:oxyanion complexes are formed through an oxyanion linkage between two urea functionalities on different host molecules. This contrasts the majority of previous reports for similar hosts, which indicate 1:1 binding stoichiometry.
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42
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Singh A, Trivedi DR. 'Naked-eye' detection of biologically important anions in aqueous media by colorimetric receptor and its real life applications. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 179:95-103. [PMID: 28235736 DOI: 10.1016/j.saa.2017.02.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 02/07/2017] [Accepted: 02/08/2017] [Indexed: 06/06/2023]
Abstract
A colorimetric receptor R 2-[(2-Hydroxy-naphthalen-1-ylmethylene)-hydrazonomethyl]-quinolin-8-ol has been designed and synthesized with good yield and characterized by the standard spectroscopic techniques such as FT-IR, UV-Visible, 1H NMR, 13C NMR and ESI-MS. The receptor R showed naked-eye detection and spectral change in the presence of F-, AcO- and H2PO4- over other anions. Interestingly, receptor R displaying high selective recognition towards F-, AcO- ion with a drastic color change from pale yellow to red in dry DMSO solvent and orange in mixed solvent DMSO/H2O (9:1, v/v). The behavior of receptor R towards F-, AcO- ion was investigated using UV-Vis and 1H NMR experiment. The detailed 1H NMR experiment result revealed that the receptor R is forming the hydrogen bonding between imine nitrogen and phenolic OH proton towards anions. The receptor R is able to detect sodium salts of flouride (NaF) and acetate (NaAcO) in aqueous medium and it exhibited dramatic color change from pale yellow to red. The receptor R demonstrated itself to be useful for real life application by detecting flouride and acetate ion in sea-water and commercially available product such as toothpaste, mouthwash and vinegar solution.
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Affiliation(s)
- Archana Singh
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, Srinivasnagar, - 575025, Karnataka, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, Srinivasnagar, - 575025, Karnataka, India.
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43
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Li Y, Shi W, Ma J, Wang X, Kong X, Zhang Y, Feng L, Hui Y, Xie Z. A novel optical probe for Hg 2+ in aqueous media based on mono-thiosemicarbazone Schiff base. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Pangannaya S, Purayil NP, Dabhi S, Mankad V, Jha PK, Shinde S, Trivedi DR. Spectral and DFT studies of anion bound organic receptors: Time dependent studies and logic gate applications. Beilstein J Org Chem 2017; 13:222-238. [PMID: 28326131 PMCID: PMC5331291 DOI: 10.3762/bjoc.13.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 01/18/2017] [Indexed: 12/29/2022] Open
Abstract
New colorimetric receptors R1 and R2 with varied positional substitution of a cyano and nitro signaling unit having a hydroxy functionality as the hydrogen bond donor site have been designed, synthesized and characterized by FTIR, 1H NMR spectroscopy and mass spectrometry. The receptors R1 and R2 exhibit prominent visual response for F− and AcO– ions allowing the real time analysis of these ions in aqueous media. The formation of the receptor–anion complexes has been supported by UV–vis titration studies and confirmed through binding constant calculations. The anion binding process follows a first order rate equation and the calculated rate constants reveal a higher order of reactivity for AcO− ions. The 1H NMR titration and TDDFT studies provide full support of the binding mechanism. The Hg2+ and F− ion sensing property of receptor R1 has been utilized to arrive at “AND” and “INHIBIT” molecular logic gate applications.
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Affiliation(s)
- Srikala Pangannaya
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, India
| | - Neethu Padinchare Purayil
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, India
| | - Shweta Dabhi
- Department of Physics, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar 364001, India
| | - Venu Mankad
- Department of Physics, Maharaja Krishnakumarsinhji Bhavnagar University, Bhavnagar 364001, India
| | - Prafulla K Jha
- Department of Physics, Faculty of Science, The M.S. University of Baroda, Vadodara 390002, India
| | - Satyam Shinde
- School of Technology, Pandit Deendayal Petroleum University, Gandhinagar 382007, Gujarat, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, Department of Chemistry, National Institute of Technology Karnataka (NITK), Surathkal, India
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45
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Chen J, Li W, Li Q, Lin Q, Yao H, Zhang Y, Wei T. A Turn-On Fluorescence Chemosensor for Cyanide in Aqueous Media Based on a Nucleophilic Addition Reaction. CHINESE J CHEM 2017. [DOI: 10.1002/cjoc.201600811] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Jie Chen
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
| | - Wenting Li
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
| | - Qiao Li
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
| | - Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
| | - Hong Yao
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
| | - Youming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
| | - Taibao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou Gansu 730070 China
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46
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Pandurangan K, Aletti AB, Montroni D, Kitchen JA, Martínez-Calvo M, Blasco S, Gunnlaugsson T, Scanlan EM. Supramolecular Anion Recognition Mediates One-Pot Synthesis of 3-Amino-[1,2,4]-triazolo Pyridines from Thiosemicarbazides. Org Lett 2017; 19:1068-1071. [DOI: 10.1021/acs.orglett.6b03645] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Komala Pandurangan
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Anna B. Aletti
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Devis Montroni
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Jonathan. A. Kitchen
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Miguel Martínez-Calvo
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Salvador Blasco
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Thorfinnur Gunnlaugsson
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
| | - Eoin M. Scanlan
- School of Chemistry, Trinity
College Dublin and Trinity Biomedical Science Institute (TBSI), The University of Dublin, Dublin 2, Ireland
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47
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Srikala P, Tarafder K, Trivedi DR. Design and synthesis of a new organic receptor and evaluation of colorimetric anion sensing ability in organo-aqueous medium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 170:29-38. [PMID: 27398634 DOI: 10.1016/j.saa.2016.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 06/20/2016] [Accepted: 07/02/2016] [Indexed: 06/06/2023]
Abstract
A new organic receptor has been designed and synthesized by the combination of aromatic dialdehyde with nitro-substituted aminophenol resulting in a Schiff base compound. The receptor exhibited a colorimetric response for F(-) and AcO(-) ion with a distinct color change from pale yellow to red and pink respectively in dry DMSO solvent and yellow to pale greenish yellow in DMSO:H2O (9:1, v/v). UV-Vis titration studies displayed a significant shift in absorption maxima in comparison with the free receptor. The shift could be attributed to the hydrogen bonding interactions between the active anions and the hydroxyl functionality aided by the electron withdrawing nitro substituent on the receptor. (1)H NMR titration and density functionality studies have been performed to understand the nature of interaction of receptor and anions. The lower detection limit of 1.12ppm was obtained in organic media for F(-) ion confirming the real time application of the receptor.
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Affiliation(s)
- P Srikala
- Supramolecular Chemistry Laboratory, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India
| | - Kartick Tarafder
- Department of Physics, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India
| | - Darshak R Trivedi
- Supramolecular Chemistry Laboratory, National Institute of Technology Karnataka (NITK), Surathkal 575025, Karnataka, India.
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48
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Rouzi K, Abulikemu A, Zhao J, Wu B. A study on the synthesis and anion recognition of a chitosan-urea receptor. RSC Adv 2017. [DOI: 10.1039/c7ra09431k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chitosan-urea receptor for sensing PO43− and F− anions.
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Affiliation(s)
- Kuerbanjiang Rouzi
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Abuderixiti Abulikemu
- College of Chemistry and Chemical Engineering
- Xinjiang Normal University
- Urumqi
- P. R. China
| | - Jie Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
| | - Biao Wu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an
- P. R. China
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49
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Ali R, Razi SS, Shahid M, Srivastava P, Misra A. Off-On-Off fluorescence behavior of an intramolecular charge transfer probe toward anions and CO2. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 168:21-28. [PMID: 27267280 DOI: 10.1016/j.saa.2016.05.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Revised: 05/18/2016] [Accepted: 05/29/2016] [Indexed: 06/06/2023]
Abstract
The photophysical behavior of a newly developed fluorescent probe, tricyanoethylphenyl phenanthroimidazole (TCPPI) has been studied. Upon interaction of different class of anions TCPPI displayed naked-eye sensitive fluorescence "turn-on" response to detect selectively F(-) (0.98μM, 18.62ppb) and CN(-) (1.12μM, 29.12ppb) anions in acetonitrile (MeCN). Job's plot analysis revealed a 1:1 binding stoichiometry between probe and anions. The spectral data analysis and 1H NMR titration studies suggested about the affinity of F(-) and CN(-) anions with moderately acidic -NH fragment of imidazolyl unit of probe through deprotonation and H-bonding interaction. Moreover, the anion activated probe upon interaction with CO2 revived photophysical properties of probe, "On-Off-On" type fluorescence and enabled anion-induced CO2 sensing in the medium.
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Affiliation(s)
- Rashid Ali
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Syed S Razi
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Mohammad Shahid
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Priyanka Srivastava
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India
| | - Arvind Misra
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi 221 005, UP, India.
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50
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