1
|
Dua A, Saini P, Goyal S, Selvam P, Ashok Kumar SK, Thiruppathi G, Sundararaj P, Sharma HK, Kumar Ramasamy S. Chromene-chromene Schiff base as a fluorescent chemosensor for Th 4+ and its application in bioimaging of Caenorhabditis elegans. Methods 2024; 225:28-37. [PMID: 38485032 DOI: 10.1016/j.ymeth.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/28/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
The manuscript presents the synthesis of a new di-chromene Schiff base (COM-CH) by combining 7-(diethylamino)-2-oxo-2H-chromene-3-carbohydrazide and 4-oxo-4H-chromene-3-carbaldehyde, and its characterization using various analytical techniques. The probe COM-CH functional group contains a hard donor atom that selectively complexes with Th4+ ions. This report investigated COM-CH's sensing ability towards Th4+ chromogenic and fluorogenic methods in ACN: H2O (8:2, v/v) with Th4+ ions. The COM-CH-Th4+ complex was excited at 430 nm, resulting in a bright emission band at 475 nm with a 45 nm Stokes shift. The COM-CH probe demonstrated the highest performance at pH 4.0 to 8.0, with a sensitivity of 18.7 nM. The complex formation of COM-CH with Th4+ was investigated using NMR, FTIR spectrometry, and density functional theory calculations. The COM-CH and Th4+ are bound with 2:1 stoichiometry and an association constant of 1.92 × 108 M-2. The probe's performance enabled the analysis of monazite sand and water samples for Th4+ content. The probe successfully detected Th4+ content in Caenorhabditis elegans, marking the first Th4+ detection in animal models.
Collapse
Affiliation(s)
- Aastha Dua
- Department of Chemistry, M.M Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133 207, Haryana, India
| | - Pratiksha Saini
- Department of Chemistry, M.M Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133 207, Haryana, India
| | - Shiwani Goyal
- Department of Chemistry, M.M Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133 207, Haryana, India
| | - Pravinkumar Selvam
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
| | - S K Ashok Kumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
| | - Govindhan Thiruppathi
- Unit of Nematology, Department of Zoology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Palanisamy Sundararaj
- Unit of Nematology, Department of Zoology, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - Harish K Sharma
- Department of Chemistry, M.M Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133 207, Haryana, India
| | - Selva Kumar Ramasamy
- Department of Chemistry, M.M Engineering College, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala 133 207, Haryana, India.
| |
Collapse
|
2
|
Thangaraj B, Ponram M, Ranganathan S, Sambath B, Cingaram R, Iyer SK, Natesan Sundaramurthy K. Development of tissue paper-based chemosensor and demonstration for the selective detection of Cu 2+ and Hg 2+ ions. RSC Adv 2023; 13:26023-26030. [PMID: 37664201 PMCID: PMC10472502 DOI: 10.1039/d3ra03764a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023] Open
Abstract
Heavy metals emanate from natural and man-made sources, such as agricultural chemicals including fertilisers and pesticides, medical waste, and chemicals released from industries. Detection and monitoring toxic metal ions is one of the challenges confronting scientists in biological, environmental, and chemical systems. This study describes the design and synthesis of a new imidazole-based fluorescent and colourimetric chemosensor (DPICDT) for highly selective sensing of Hg2+ and Cu2+ ions in aqueous acetonitrile medium. The probe was synthesised by coupling benzil and substituted aldehyde using ethanolic ammonium acetate. The structure of DPICDT was confirmed via IR spectra, NMR, and HR-MS spectra. The DPICDT probe displayed a rapid naked-eye response towards Cu2+ ions from colourless to red-purple and significant fluorescence quenching response towards Hg2+ over other competitive metal ions in both solution and solid support. The binding modes of DPICDT with Cu2+ and Hg2+ ions were found to be at a 1 : 1 ratio as determined using Job plot, ESI HR-MS, and the sensing mechanism was evolved by 1H NMR titrations, HR-MS spectra, and DFT calculations. The lower detection limit was 15.1 nM for Cu2+, eventually far less than the World Health Organization guideline for drinking water (Cu2+ - 31.5 μM) and 1.17 μM for Hg2+ (permissible concentration 2 ppb). Promisingly, the tissue paper-based DPICDT test strips and silica-supported DPICDT were developed and demonstrated for on-site application without resorting to expensive instruments.
Collapse
Affiliation(s)
| | - Marimuthu Ponram
- Department of Chemistry, Easwari Engineering College Chennai 600 089 India
| | - Suresh Ranganathan
- Centre for Material Chemistry, Karpagam Academy of Higher Education Coimbatore India
- Department of Chemistry, Karpagam Academy of Higher Education Coimbatore India
| | - Baskaran Sambath
- Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
| | | | | | | |
Collapse
|
3
|
Paul S, Ray Choudhury A, Dey N. Dual-Mode Multiple Ion Sensing via Analyte-Specific Modulation of Keto-Enol Tautomerization of an ESIPT Active Pyrene Derivative: Experimental Findings and Computational Rationalization. ACS OMEGA 2023; 8:6349-6360. [PMID: 36844601 PMCID: PMC9947992 DOI: 10.1021/acsomega.2c06559] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 01/11/2023] [Indexed: 06/18/2023]
Abstract
A pyrene-based e xcited - state intramolecular proton transfer (ESIPT) active probe PMHMP was synthesized, characterized, and employed for the ppb-level, dual-mode, and high-fidelity detection of Cu2+ (LOD: 7.8 ppb) and Zn2+ ions (LOD: 4.2 ppb) in acetonitrile medium. The colorless solution of PMHMP turned yellow upon the addition of Cu2+, suggesting its ratiometric, naked-eye sensing. On the contrary, Zn2+ ions displayed concentration-dependent fluorescence rise till a 0.5 mole fraction and subsequent quenching. Mechanistic investigations indicated the formation of a 1:2 exciplex (Zn2+:PMHMP) at a lower concentration of Zn2+, which eventually turned into a more stable 1:1 (Zn2+:PMHMP) complex with an additional amount of Zn2+ ions. However, in both cases, it was observed that the hydroxyl group and the nitrogen atom of the azomethine unit were involved in the metal ion coordination, which eventually altered the ESIPT emission. Furthermore, a green-fluorescent 2:1 PMHMP-Zn2+ complex was developed and additionally employed for the fluorimetric analysis of both Cu2+ and H2PO4 - ions. The Cu2+ ion, owing to its higher binding affinity for PMHMP, could replace the Zn2+ ion from the preformed complex. On the other hand, H2PO4 - formed a tertiary adduct with the Zn2+-complex, leading to a distinguishable optical signal. Furthermore, extensive and organized density functional theory calculations were performed to explore the ESIPT behavior of PMHMP and the geometrical and electronic properties of the metal complexes.
Collapse
Affiliation(s)
- Suvendu Paul
- Department
of Chemistry, BITS-Pilani Hyderabad Campus, Shameerpet, Hyderabad, Telangana 500078, India
| | | | - Nilanjan Dey
- Department
of Chemistry, BITS-Pilani Hyderabad Campus, Shameerpet, Hyderabad, Telangana 500078, India
| |
Collapse
|
4
|
Rajasekar M, Ranjitha V, Rajasekar K. Recent Advances in Fluorescent-based Cation Sensors for Biomedical Applications. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2023.100850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023] Open
|
5
|
A potential sensor for assessing thorium (IV) based on Albuterol sulfate fluorescence enhancement: A density functional theory (DFT) study. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
6
|
Seenan S, Manickam S, Sawminathan S, Jothi D, Kulathu Iyer S. Phenanthridine based fluorescent probe for Th4+ ion chemosensor. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
7
|
Huang S, Zheng L, Zheng S, Guo H, Yang F. First fluorescence sensor for hydrazine ion: An effective “turn-on” detection based on thiophene-cyanodistyrene Schiff-base. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113851] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
8
|
Elabd AA, Elhefnawy OA. A new benzeneacetic acid derivative-based sensor for assessing Thorium (IV) in aqueous solution based on Aggregation caused quenching (ACQ) and Aggregation induced emission (AIE). J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.113866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
9
|
Jebnouni A, Leclerc N, Teka S, Mansour D, Jaballah NS. Vinylene-versus azomethine-bridged carbazole-based polymers for light emission and sensor applications. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130994] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
10
|
Seenan S, Iyer Sathiyanarayanan K. A multisensing ratiometric fluorescent sensor for recognition of Al3+, Th4+ and picric acid. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
11
|
Chen S, Jiang S, Guo H, Yang F. "Turn-on" fluorescent sensor for Th 4+ in aqueous media based on a combination of PET-AIE effect. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 248:119191. [PMID: 33239250 DOI: 10.1016/j.saa.2020.119191] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 10/17/2020] [Accepted: 11/03/2020] [Indexed: 06/11/2023]
Abstract
Previously reported fluorescent sensors for Th4+ experienced emission quenching or generated false positive signal upon aggregate formation in aqueous media. Herein, a simple and novel thorium sensor (CDB-BA) based on cyanodistyrene structure was designed and synthesized, which integrated the highly emitting characteristic of AIE effect and off-on response of PET modulation for the first time to construct the "turn-on" fluorescent probe for Th4+. Besides excellent selectivity, CDB-BA exhibited remarkable fluorescent enhancement which was linearly related to the concentration of Th4+ in the range of 0.25-8 μM. The detection limit was attained 0.074 μM, which was lower than that of most previously reported sensors. The mechanism of tris-chelate complex of CDB-BA with Th4+ was confirmed by mass spectra, IR spectra and DFT calculation. The excellent Th4+ sensing ability of CDB-BA was successfully applied to detecting Th4+ on TLC plates, in real water samples and living-cell imaging. This work suggested that the combination of AIE and PET photophysical mechanism could offer the merits of minimized background and enhanced signal fidelity to develop novel "turn-on" fluorescent probe in complicated aqueous environment and biological research.
Collapse
Affiliation(s)
- Shibing Chen
- College of Chemistry and Materials, Fujian Normal University, Fuzhou 350007, PR China
| | - Shengjie Jiang
- College of Chemistry and Materials, Fujian Normal University, Fuzhou 350007, PR China
| | - Hongyu Guo
- College of Chemistry and Materials, Fujian Normal University, Fuzhou 350007, PR China; Fujian Key Laboratory of Polymer Materials, Fuzhou 350007, PR China
| | - Fafu Yang
- College of Chemistry and Materials, Fujian Normal University, Fuzhou 350007, PR China; Fujian Key Laboratory of Polymer Materials, Fuzhou 350007, PR China; Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fuzhou 350007, PR China.
| |
Collapse
|
12
|
Chen S, Zheng S, Jiang S, Guo H, Yang F. A simple "turn-on" fluorescence sensor for salicylaldehyde skeleton based on switch of PET-AIE effect. Anal Bioanal Chem 2021; 413:1955-1966. [PMID: 33481048 DOI: 10.1007/s00216-021-03165-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 12/01/2020] [Accepted: 01/07/2021] [Indexed: 11/26/2022]
Abstract
The selective detection of salicylaldehyde skeleton is of great significance in phytochemistry and biological research but rarely reported. In this research, a simple and highly selective "turn-on" fluorescence sensor (CDB-Am) for salicylaldehyde skeleton was developed based on switch of photoinduced electron transfer (PET) and aggregation-induced emission (AIE). CDB-Am bearing amino-cyanodistyrene structure responded to salicylaldehyde in the range of 3.1 to 40 μM with a detection limit of 0.94 μM. The sensing process of formation of Schiff-base adduct CDB-SA was confirmed by 1H NMR, MS, and FT-IR spectra, revealing that a recovered AIE property accounted for the turn-on fluorescence response of CDB-Am and the intramolecular hydrogen bonding played a crucial role in the disruption of PET process. This sensing ability was successfully applied for both fluorescence qualitative test of salicylaldehyde skeleton on TLC analysis and quantitative detection of salicylaldehyde skeleton with good accuracy in the root bark of Periploca sepium, suggesting the extensive applications in phytochemistry and traditional Chinese herbal medicine. Furthermore, CDB-Am exhibited the first excellent fluorescence imaging ability in detecting salicylaldehyde skeleton in a living system. This work supplied a new strategy of preparing a novel "turn-on" fluorescence probe for detecting salicylaldehyde skeleton in complex environments and living bodies.
Collapse
Affiliation(s)
- Shibing Chen
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Sining Zheng
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Shengjie Jiang
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, 350007, Fujian, China
| | - Hongyu Guo
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, 350007, Fujian, China
- Fujian Key Laboratory of Polymer Materials, Fuzhou, 350007, Fujian, China
| | - Fafu Yang
- College of Chemistry and Materials, Fujian Normal University, Fuzhou, 350007, Fujian, China.
- Fujian provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering, Fuzhou, 350007, Fujian, China.
| |
Collapse
|
13
|
Sendh J, Singh MP, Baruah JB. 5-[(Pyren-9-ylmethyl)amino]isophthalic acid with nitrogen containing heterocycles: stacking, N–H⋯π interactions and photoluminescence. CrystEngComm 2021. [DOI: 10.1039/d1ce01099a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Synthons guided the types of N–H⋯π interactions and stacking to cause quenching of emissions.
Collapse
Affiliation(s)
- Jagajiban Sendh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati – 781 039, Assam, India
| | - Munendra Pal Singh
- Research & Development Centre, Sun Pharmaceutical Industries Ltd., Gurgaon – 122015, Haryana, India
| | - Jubaraj B. Baruah
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati – 781 039, Assam, India
| |
Collapse
|
14
|
Fang Y, Dehaen W. Small-molecule-based fluorescent probes for f-block metal ions: A new frontier in chemosensors. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213524] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
15
|
Cui F, Yin G, Yang R, Guo X. A colorimetric chemosensor for pyrophosphate based on mono-pyrenylurea in aqueous media. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 241:118658. [PMID: 32650244 DOI: 10.1016/j.saa.2020.118658] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/15/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
Research on pyrophosphate ions detection remains important because it plays crucial roles in various fields. A simple and new colorimetric sensor for pyrophosphate (PPi) based on mono-pyrenylurea ligand (L) has been designed and synthesized by a simple reaction of 1-pyrenemethylamine hydrochloride with p-nitrophenylisocyanate. In DMSO-15% H2O solution and DMSO-15% HEPES (10 mM, pH = 7.2) buffer solution, L displayed a selective colorimetric response for pyrophosphate (PPi) against other anions by changing color from colorless to yellow. This recognition process was confirmed by UV-vis spectroscopy. Also, the colorimetric properties of L are attributed to the anion-induced deprotonation of the urea subunit as demonstrated by 1H NMR titration method. Moreover, convenient test strips coated with L could be utilized to detect PPi in aqueous solution by naked-eye.
Collapse
Affiliation(s)
- Fengjuan Cui
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, PR China.
| | - Guangming Yin
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, PR China
| | - Rui Yang
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, PR China
| | - Xiangfeng Guo
- College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, Heilongjiang 161006, PR China.
| |
Collapse
|
16
|
Kamel RM, Shahat A, Anwar ZM, El-Kady HA, Kilany EM. Efficient dual sensor of alternate nanomaterials for sensitive and rapid monitoring of ultra-trace phenols in sea water. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2019.111798] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
17
|
Kumar R. S, Ashok Kumar SK. A light activated CMP conjugated 8-aminoquinoline turn-on fluorescent optode for selective determination of Th4+ in an aqueous environment. Dalton Trans 2019; 48:12607-12614. [DOI: 10.1039/c9dt01830a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new dibutyl(2-oxo-2-(quinolin-8-ylamino)ethyl)phosphinate (L) was designed, synthesised and developed as a light activated optode for Th4+ determination.
Collapse
Affiliation(s)
- Selva Kumar R.
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore-632014
- India
| | - S. K. Ashok Kumar
- Department of Chemistry
- School of Advanced Sciences
- Vellore Institute of Technology
- Vellore-632014
- India
| |
Collapse
|
18
|
R SK, Kumar SKA, Vijayakrishna K, Sivaramakrishna A, Brahmmananda Rao CVS, Sivaraman N, Sahoo SK. Development of the Smartphone-Assisted Colorimetric Detection of Thorium by Using New Schiff’s Base and Its Applications to Real Time Samples. Inorg Chem 2018; 57:15270-15279. [DOI: 10.1021/acs.inorgchem.8b02564] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Selva Kumar R
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - S. K. Ashok Kumar
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Kari Vijayakrishna
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - Akella Sivaramakrishna
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, Tamil Nadu, India
| | - C. V. S. Brahmmananda Rao
- Indira Gandhi Centre for Atomic Research, Homi Bhabha National Institute, Kalpakkam 603102, Tamil Nadu, India
| | - N. Sivaraman
- Indira Gandhi Centre for Atomic Research, Homi Bhabha National Institute, Kalpakkam 603102, Tamil Nadu, India
| | - Suban K. Sahoo
- Department of Applied Chemistry, S. V. National Institute Technology, Surat 395007, Gujarat, India
| |
Collapse
|
19
|
Selvan GT, Poomalai S, Ramasamy S, Selvakumar PM, Muthu Vijayan Enoch IV, Lanas SG, Melchior A. Differential Metal Ion Sensing by an Antipyrine Derivative in Aqueous and β-Cyclodextrin Media: Selectivity Tuning by β-Cyclodextrin. Anal Chem 2018; 90:13607-13615. [PMID: 30412380 DOI: 10.1021/acs.analchem.8b03810] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
β-Cyclodextrin (β-CD) is a nontoxic cyclic oligosachcharide that can encapsulate all or part of organic molecules of appropriate size and specific shape through noncovalent interaction. Herein, we report the influence of β-CD complex formation of an antipyrine derivative on its metal ion sensing behavior. In aqueous solution, the antipyrine shows a turn-on fluorescence sensing of vanadyl ion, and in cyclodextrin medium it senses aluminum ion. The compound shows an unusual fluorescence quenching on binding with β-cyclodextrin (log KSV = 2.34 ± 0.02). The differential metal ion sensing is due to the partial blocking of the chelating moiety by the cyclodextrin molecule. The structure of the antipyrine-cyclodextrin complex is optimized by two-dimensional rotating-frame Overhauser effect spectroscopy. The binding constant is determined by isothermal titration calorimetry (log K = 2.09 ± 0.004). The metal ion binding site is optimized by quanutm mechanical calculations. The lower limit of detection of vanadyl and aluminum ions, respectively, are 5 × 10-8 and 5 × 10-7 mol dm-3. This is the first report of selectivity of two different cations by a chemosensor in water and in β-CD.
Collapse
Affiliation(s)
| | - Sumathi Poomalai
- Department of Chemistry , Muthayammal College of Arts and Science , Namakkal District , Tamil Nadu , India
| | | | | | | | - Sara Gracia Lanas
- Polytechnic Department of Engineering, Chemistry Laboratories , University of Udine , via del Cotonificio 108 , 33100 Udine , Italy
| | - Andrea Melchior
- Polytechnic Department of Engineering, Chemistry Laboratories , University of Udine , via del Cotonificio 108 , 33100 Udine , Italy
| |
Collapse
|
20
|
Bartwal G, Aggarwal K, Khurana JM. A highly selective pH switchable colorimetric fluorescent rhodamine functionalized azo-phenol derivative for thorium recognition up to nano molar level in semi-aqueous media: Implication towards multiple logic gates. JOURNAL OF HAZARDOUS MATERIALS 2018; 360:51-61. [PMID: 30077038 DOI: 10.1016/j.jhazmat.2018.07.091] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 06/25/2018] [Accepted: 07/23/2018] [Indexed: 05/16/2023]
Abstract
A new rhodamine functionalized Schiff base (3',6'-bis(diethylamino)-2-((Z)-(5-((E)-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)diazenyl)-2,4-dihydroxybenzylidene) amino)spiro[isoindoline-1,9'-xanthen]-3-one (1) has been synthesized and was characterized spectroscopically. The optical properties of the schiff base have been studied using UV-vis and fluorescence spectra. Schiff base 1 displayed a selective behaviour towards Th4+ ions, as evidenced by UV-vis and fluorescence spectra. It shows visible colour change from orangish-yellow to red upon addition of Th4+ ions. A strong new emission band at 586 nm and about 24-fold enhancement in fluorescence intensity was observed upon binding with Th4+ which could be quenched by subsequent addition of oxalate and chromate ions. Probe 1 also acts as a reversible pH sensor in the highly acidic region (pH < 4, pKa = 2.01) via the photophysical response to pH as well as visible detectable colour change from orangish-yellow to red to pink. The absorbance and emission intensities of 1 diminished in the pH region from 4 to 11.5 and could be recovered by adding acid to adjust the pH < 4. Probe 1 exhibited high binding constant (8.595 × 106 M-1) and low limit of detection (1.122 × 10-9) compared to most previously reported sensors for Th4+ ions. Furthermore, two multiple logic gates i.e. 3 and 5 input, have been constructed.
Collapse
Affiliation(s)
- Gaurav Bartwal
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Komal Aggarwal
- Department of Chemistry, University of Delhi, Delhi, 110007, India
| | | |
Collapse
|
21
|
Tang Y, Huang Y, Lu L, Wang C, Sun T, Zhu J, Zhu G, Pan J, Jin Y, Liu A, Wang M. Synthesis of a new pyrene-devived fluorescent probe for the detection of Zn2+. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.038] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
22
|
Lin SF, Chen Y. Polyazomethines based on oxadiazolyl or 1,2,4-triazolyl groups: synthesis and hole-buffering application in polymer light-emitting diodes. Polym Chem 2018. [DOI: 10.1039/c8py01152d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Balance in charge carriers is a prerequisite for obtaining high emission efficiency in polymer light-emitting diodes (PLEDs). Polyazomethines P1 and P2 buffer holes effectively to balance carriers and enhance emission efficiency.
Collapse
Affiliation(s)
- Sheng-Fong Lin
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701
- Taiwan
| | - Yun Chen
- Department of Chemical Engineering
- National Cheng Kung University
- Tainan 701
- Taiwan
| |
Collapse
|