1
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Stîngă G, Băran A, Iovescu A, Maxim ME, Anghel DF. Metal ions recognition by pyrene labeled poly(acrylic acid). J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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2
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Wang H, Liu Y, Zhang Y, Sun X. Synthesis of BINOL-xylose-conjugates as "Turn-off" fluorescent receptors for Fe 3+ and secondary recognition of cysteine by their complexes. RSC Adv 2022; 12:10379-10385. [PMID: 35424990 PMCID: PMC8977995 DOI: 10.1039/d1ra09255c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/29/2022] [Indexed: 11/21/2022] Open
Abstract
A novel chiral fluorescence "turn-off" sensor was synthesised using the click reaction. The sensor was a BINOL-xylose derivative, modified at the 2-position and linked by 1,2,3-triazole. It was structurally characterized by 1HNMR, 13CNMR, ESI-MS and IR analysis. The selectivity of R-β-d-2 in methanol solution has been studied. Among the 19 transition metal ions, alkaline metal ions and alkaline earth metal ions studied, R-β-d-2 had a selective fluorescence quenching reaction for Fe3+. The detection limit of R-β-d-2 for Fe3+ was 0.91 μmol L-1. Complexation between R-β-d-2 and Fe3+ was investigated by ESI-MS and 1HNMR. The stoichiometric ratio of R-β-d-2 was 1 : 1. In addition, the R-β-d-2-Fe3+ complex was titrated with 20 naturally occurring amino acids and Hcy with GSH. It was found that the complex R-β-d-2-Fe3+ had a secondary recognition effect on Cys by switching to fluorescence.
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Affiliation(s)
- Huizhen Wang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
| | - Yang Liu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
| | - Yafeng Zhang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
| | - Xiaoxia Sun
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013 China
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3
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Shan P, Lin R, Liu M, Tao Z, Xiao X, Liu J. Recognition of glycine by cucurbit[5]uril and cucurbit[6]uril: A comparative study of exo- and endo-binding. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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4
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Wu YC, Jiang K, Luo SH, Cao L, Wu HQ, Wang ZY. Novel dual-functional fluorescent sensors based on bis(5,6-dimethylbenzimidazole) derivatives for distinguishing of Ag + and Fe 3+ in semi-aqueous medium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 206:632-641. [PMID: 29880253 DOI: 10.1016/j.saa.2018.05.069] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
Three novel bisbenzimidazole derivatives have been synthesized and developed as dual-functional fluorescent sensors for the rapid and highly selective detection of Ag+ and Fe3+ ions in semi-aqueous medium with distinct spectral response for the first time. The absorption intensity is drastically decreased after the addition of Ag+. Contrarily, it is markedly increased upon the addition of Fe3+. And there is a good linear relation at low concentration of both Ag+ and Fe3+, which provides a quantitative method for their detection. Similarly, the sensors show a distinct fluorescence response towards Ag+ and Fe3+ with a different fluorescence color change under UV light. In addition, no significant changes and interference can be observed with other metal ions. The sensing mechanism studies confirm that the N atom in CN of benzimidazole ring of sensor 4a may bind with Ag+ or Fe3+ ion to form metal complex. And there is only a static quenching process for the 4-Ag+ complex system, but both dynamic and static quenching processes occur in the 4-Fe3+ complex system. Moreover, sensors 4 can steadily work in solution with a wide range of pH 4-13 and rapidly respond to Ag+ and Fe3+ with a response time of 10 s. Finally, the sensors have been successfully applied to the visual detection of Ag+ and Fe3+ not only in solution, but also in test paper.
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Affiliation(s)
- Yan-Cheng Wu
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Kai Jiang
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China
| | - Shi-He Luo
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China.
| | - Liang Cao
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China
| | - Han-Qing Wu
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China
| | - Zhao-Yang Wang
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou 510006, China; Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, 381 Wushan Road, Guangzhou 510640, China.
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5
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Li L, Luo Q, Cui H, Li R, Zhang J, Peng T. Air-stable Ruthenium(II)-NNN Pincer Complexes for the Efficient Coupling of Aromatic Diamines and Alcohols to 1H
-benzo[d
]imidazoles with the Liberation of H2. ChemCatChem 2018. [DOI: 10.1002/cctc.201800017] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Lin Li
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Qi Luo
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Huahua Cui
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Renjie Li
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Jing Zhang
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
| | - Tianyou Peng
- College of Chemistry&Molecular Sciences; Wuhan University; Wuhan 430072 P.R. China
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6
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Lu Z, Liu Y, Lu S, Li Y, Liu X, Qin Y, Zheng L. A highly selective TPE-based AIE fluorescent probe is developed for the detection of Ag+. RSC Adv 2018; 8:19701-19706. [PMID: 35541010 PMCID: PMC9080746 DOI: 10.1039/c8ra03591a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 05/22/2018] [Indexed: 11/28/2022] Open
Abstract
The detection of Ag+ in the environment is very important to determine the level of pollution from silver complexes, which have caused various human health problems. Herein, an aggregation-induced emission (AIE) chromophore (tetraphenylethane, TPE) attached to a benzimidazole group (tetra-benzimidazole, TBI–TPE) is synthesized and utilized to detect Ag+ in the environment. The strong chelating effect between the benzimidazole group and Ag+ leads to the formation of aggregates, and strong yellow fluorescence signals were observed after adding Ag+ into a TBI–TPE solution. The stoichiometry of the complex of TBI–TPE and Ag+ was established to be 1 : 2 using photochemical and mass spectra measurements. The detection limit of the Ag+ assay is 90 nM with a linear range from 100 nM to 6 μM. This study provides a facile method to determine Ag+ in real environmental samples with satisfactory results. We develop a highly selective TPE-based AIE fluorescent probe containing a benzimidazole group for the detection of Ag+.![]()
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Affiliation(s)
- Zhixiang Lu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Yunming Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Shuhan Lu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Yuan Li
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Xiaolan Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Yu Qin
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
| | - Liyan Zheng
- Key Laboratory of Medicinal Chemistry for Natural Resource
- Ministry of Education
- Functional Molecules Analysis and Biotransformation Key Laboratory of Universities in Yunnan Province
- School of Chemical Science and Technology
- Yunnan University
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7
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Wu YC, Luo SH, Cao L, Jiang K, Wang LY, Xie JC, Wang ZY. Self-assembled structures of N -alkylated bisbenzimidazolyl naphthalene in aqueous media for highly sensitive detection of picric acid. Anal Chim Acta 2017; 976:74-83. [DOI: 10.1016/j.aca.2017.04.022] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Revised: 04/09/2017] [Accepted: 04/14/2017] [Indexed: 01/08/2023]
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8
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Prabhu J, Velmurugan K, Zhang Q, Radhakrishnan S, Tang L, Nandhakumar R. Symmetric fluorescent probes for the selective recognition of Ag-ion via restricted C N isomerization and on-site visual sensing applications. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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9
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Sheet SK, Sen B, Thounaojam R, Aguan K, Khatua S. Ruthenium(II) Complex-Based Luminescent Bifunctional Probe for Ag+ and Phosphate Ions: Ag+-Assisted Detection and Imaging of rRNA. Inorg Chem 2017; 56:1249-1263. [DOI: 10.1021/acs.inorgchem.6b02343] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Sanjoy Kumar Sheet
- Centre for Advanced
Studies, Department of Chemistry, North Eastern Hill University, Shillong, Meghalaya 793022, India
| | - Bhaskar Sen
- Centre for Advanced
Studies, Department of Chemistry, North Eastern Hill University, Shillong, Meghalaya 793022, India
| | - Romita Thounaojam
- Department of Biotechnology and Bioinformatics, North Eastern Hill University, Shillong, Meghalaya 793022, India
| | - Kripamoy Aguan
- Department of Biotechnology and Bioinformatics, North Eastern Hill University, Shillong, Meghalaya 793022, India
| | - Snehadrinarayan Khatua
- Centre for Advanced
Studies, Department of Chemistry, North Eastern Hill University, Shillong, Meghalaya 793022, India
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10
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Chen F, Chen Z, Sun Y, Liu H, Han D, He H, Zhang X, Wang S. HBT-based turn-on fluorescent probe for discrimination of homocysteine from glutathione/cysteine and its bioimaging applications. RSC Adv 2017. [DOI: 10.1039/c6ra28712c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
In this work, we firstly reported a new type of turn-on fluorescent probe HBTI for Hcy over GSH/Cys based on ESIPT and heavy atom effect strategy.
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Affiliation(s)
- Fengzao Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
| | - Zhen Chen
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
| | - Yuanchao Sun
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
| | - Heng Liu
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
| | - Deman Han
- Department of Chemistry
- Taizhou University
- Jiaojiang 318000
- PR China
| | - Hanping He
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
| | - Xiuhua Zhang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
| | - Shengfu Wang
- Hubei Collaborative Innovation Center for Advanced Organic Chemical Materials
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules
- College of Chemistry and Chemical Engineering
- Hubei University
- Wuhan 430062
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11
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Nehra A, Yarramala DS, Rao CP. A 1,3-Capped Calix[4] Conjugate Possessing an Amine Moiety as an Anion Receptor: Reversible Anion Sensing Detected by Spectroscopy and Characterization of the Supramolecular Features by Microscopy. Chemistry 2016; 22:8980-9. [PMID: 27218408 DOI: 10.1002/chem.201600609] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Indexed: 11/12/2022]
Abstract
A phenylenediamine-capped conjugate of calix[4]arene (Lamino ) was synthesized by reducing its precursor, Limino , with sodium borohydride in methanol. The Lamino sample binds to anions due to the more flexible and bent conformation of the capped aminophenolic binding core, compared to the precursor Limino . The Lamino sample showed selectivity towards H2 PO4 (-) by exhibiting a ratiometric increase in emission by about 11-fold with a detection limit of (1.2±0.2) μm ((116±20) ppb) over 15 anions studied, including other phosphates, such as P2 O7 (4-) , adenosine monophosphate (AMP(2-) ), adenosine diphosphate (ADP(2-) ), and adenosine triphosphate (ATP(2-) ). The Lamino sample shows an increase in the absorbance at λ=315 nm in the presence of H2 PO4 (-) , CO3 (2-) , HCO3 (-) , CH3 CO2 (-) , and F(-) . The (1) H NMR spectroscopic titration of Lamino with H2 PO4 (-) , F(-) , and CH3 CO2 (-) showed major changes in the phenylene-capped and salicyl moieties, and thereby, confirming the aminophenolic region as the binding core. However, the binding strength of these anions followed the trend H2 PO4 (-) >F(-) ≫CH3 CO2 (-) >HSO4 (-) . The heat changes observed by isothermal titration calorimetry support this trend. The Lamino sample showed reversible sensing towards H2 PO4 (-) and F(-) in the presence of Mg(2+) and Ca(2+) , respectively. NOESY studies of Lamino , in comparison with its anionic complexes, revealed that major conformational changes occurred in the capping region to facilitate the binding of anion. ESI-MS and the Job's method revealed 1:1 stoichiometry between Lamino and H2 PO4 (-) or F(-) . In the SEM micrographs of Lamino , the spherical particles are converted into spherical aggregates and further form large agglomerates and even branched sheets in the presence of anions, depending upon their binding strength.
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Affiliation(s)
- Anita Nehra
- Bioinorganic Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Deepthi S Yarramala
- Bioinorganic Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Chebrolu Pulla Rao
- Bioinorganic Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India.
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12
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13
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Wang J, Liu HB, Tong Z, Ha CS. Fluorescent/luminescent detection of natural amino acids by organometallic systems. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.05.008] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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14
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Liu QX, Wei Q, Liu R, Zhao XJ, Zhao ZX. NHC macrometallocycles of mercury(ii) and silver(i): synthesis, structural studies and recognition of Hg(ii) complex 4 for silver ion. RSC Adv 2015. [DOI: 10.1039/c4ra14340j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Seven NHC macrometallocycles (Hg(ii) and Ag(i)) were prepared, and the recognition of Ag+ using (NHC)2–Hg–I2 (4) as a host was studied.
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Affiliation(s)
- Qing-Xiang Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Qing Wei
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Rui Liu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Xiao-Jun Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Zhi-Xiang Zhao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
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15
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A concise synthesis of benzimidazoles via the microwave-assisted one-pot batch reaction of amino acids up to a 10-g scale. Amino Acids 2014; 46:2427-33. [DOI: 10.1007/s00726-014-1794-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Accepted: 06/21/2014] [Indexed: 11/25/2022]
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16
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Zhang X, Zhao H, Tian D, Deng H, Li H. A Photoresponsive Wettability Switch Based on a Dimethylamino Calix[4]arene. Chemistry 2014; 20:9367-71. [DOI: 10.1002/chem.201402476] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Indexed: 01/27/2023]
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17
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Luxami V, Gupta AS, Paul K. Dansyl–antipyrine dyad as a fluorescent sensor for Cu2+ and F−: sequential XNOR logic operation. NEW J CHEM 2014. [DOI: 10.1039/c4nj00060a] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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Mahapatra AK, Manna SK, Maiti K, Maji R, Mukhopadhyay CD, Sarkar D, Mondal TK. Imino–phenolic–azodye appended rhodamine as a primary fluorescence “off–on” chemosensor for tin (Sn4+) in solution and in RAW cells and the recognition of sulphide by [AR–Sn]. RSC Adv 2014. [DOI: 10.1039/c4ra05729e] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new azo-rhodamine based, AR was developed for fluorescent ‘turn-on’ sensing of Sn4+ ion.
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Affiliation(s)
- Ajit Kumar Mahapatra
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah-711103, India
| | - Saikat Kumar Manna
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah-711103, India
| | - Kalipada Maiti
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah-711103, India
| | - Rajkishor Maji
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah-711103, India
| | - Chitrangada Das Mukhopadhyay
- Centre for Healthcare Science & Technology
- Indian Institute of Engineering Science and Technology
- Howrah – 711103, India
| | - Deblina Sarkar
- Department of Chemistry
- Jadavpur University
- Kolkata-700032, India
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19
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Pathak RK, Hinge VK, Mahesh K, Rai A, Panda D, Rao CP. Cd2+ complex of a triazole-based calix[4]arene conjugate as a selective fluorescent chemosensor for Cys. Anal Chem 2012; 84:6907-13. [PMID: 22834792 DOI: 10.1021/ac301492h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An N,N-Dimethylamine ethylimino-appended triazole-linked calix[4]arene conjugate, L, has been synthesized and characterized, and its Cd(2+) complex has been isolated and characterized. The structure of [CdL] was established by computational calculation using B3LYP/LANL2DZ. Time-dependent density functional theory calculations were performed to demonstrate the electronic properties of [CdL]. This highly fluorescing [CdL] has been used to recognize Cys selectively among the 20 naturally occurring amino acids. [CdL] exhibits a minimum detection limit of 58 ppb for Cys, with reusability and reversibility being imparted to the system during sensing. Thus, the sensing of Cys was well demonstrated using various techniques, viz., fluorescence, absorption, visual color change, electrospray ionization MS, (1)H NMR, and live cell imaging experiments.
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Affiliation(s)
- Rakesh K Pathak
- Bioinorganic Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India
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