1
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Shukla A, Biswal AS, Chowdhury A, Halder R, Chatterjee S. Aggregation-Induced Modulation of Ground and Excited State Photophysics of 5-( tert-Butyl)-2-Hydroxy-1,3-Isophthalaldehyde (5- tBHI). J Phys Chem B 2024; 128:5437-5453. [PMID: 38662934 DOI: 10.1021/acs.jpcb.4c00258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
5-(tert-Butyl)-2-hydroxy-1,3-isophthalaldehyde (5-tBHI) is a photochromic material susceptible to either excited state proton transfer or excited state intramolecular proton transfer, depending upon the solvent. However, it has also been found to aggregate in the presence of sodium dodecyl sulfate. In this current study, based on the steady-state and time-resolved spectroscopy, supported by crystallography, quantum chemical density functional theory calculation, and molecular dynamics (MD) simulation, we report on the aggregation of this potential single benzene-based emitter (SBBE) in neat solvents as well as solid phase to modulate its photophysics. It has been found that 5-tBHI forms mixed aggregates of different orders, owing to the presence of both enolic and tautomeric forms, to yield tunable emission, although the emission intensity is quenched. These findings suggest that the intramolecular hydrogen bonding of 5-tBHI not only limits intermolecular interactions but also promotes nonradiative deactivation pathways. Hence, designing and structural engineering, with a focus to suppressing intramolecular hydrogen bonding as well as increasing through space conjugation by replacing the aldehydic moieties with bulky aliphatic or aromatic ketonic groups, can be a plausible approach to yielding improved probes with tunable emission and higher fluorescence quantum yields.
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Affiliation(s)
- Aparna Shukla
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad 826004 Jharkhand, India
| | - Abhipsa Sekhar Biswal
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad 826004 Jharkhand, India
| | - Arkaprava Chowdhury
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, Maharashtra 400076, India
| | - Ritaban Halder
- Department of Chemistry, University of Southern California, Los Angeles, California 90089-1062, United States
| | - Soumit Chatterjee
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad 826004 Jharkhand, India
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2
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Shukla A, Jha VK, Chatterjee S. Non-trivial ground and excited state photophysics of a substituted phenol. Phys Chem Chem Phys 2024; 26:6655-6666. [PMID: 37975741 DOI: 10.1039/d3cp04570f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
5-(tert-Butyl)-2-hydroxy-1,3-isophthalaldehyde (5-tBHI) shows solvent dependent single or dual emission. The photophysics of 5-tBHI has been studied in a variety of solvents and the results were compared with that of the methyl derivative of the probe as well as the 5-tBHI anion. It has been found that the intramolecular H-bonded conformer of 5-tBHI predominantly exists in non-polar solvents, and undergoes facile excited state intramolecular proton transfer (ESIPT). On the other hand, a dynamic equilibrium can be found in polar, protic solvents, even in the ground state, except in water. NMR analyses confirm the loss of aromaticity of the probe in the ground state via anion formation, in equilibrium with the solvent mediated intermolecularly H-bonded state, in neat polar protic solvents like methanol. The proton transfer process, either intramolecularly or intermolecularly, was found to be of the order of 1 ps, and even faster than the instrumental resolution in the case of water. The current finding provides important insights on the photophysics of this small, substituted phenol.
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Affiliation(s)
- Aparna Shukla
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad 826004, Jharkhand, India.
| | - Vikas Kumar Jha
- Discipline of Chemistry, School of Chemical and Material Sciences, Department of Chemistry, Indian Institute of Technology Goa, Ponda, Goa 403401, India
| | - Soumit Chatterjee
- Department of Chemistry and Chemical Biology, Indian Institute of Technology (Indian School of Mines) Dhanbad, Dhanbad 826004, Jharkhand, India.
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3
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Shekhovtsov NA, Bushuev MB. Enol or keto? Interplay between solvents and substituents as a factor controlling ESIPT. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119611] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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4
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Brahma M, Ranjan S, Tripathi P, Krishnamoorthy G. Modifying the proton transfer of 3,5-bis(2-hydroxyphenyl)-1H-1,2,4-triazole by water, confinement and confined water. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 272:120911. [PMID: 35131618 DOI: 10.1016/j.saa.2022.120911] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/04/2022] [Accepted: 01/15/2022] [Indexed: 06/14/2023]
Abstract
The effect of water, confinement and confined water on the proton transfer of 3,5-bis(2-hydroxyphenyl)-1H-1,2,4-triazole (bis-HPTA) was investigated. Water alters the proton transfer process. At higher pH, an anion is formed in water and it undergoes intermolecular proton transfer and forms a keto tautomer. Confinement of molecule in β-cyclodextrin affects the intramolecular proton transfer. It also prevents the intermolecular proton transfer of the anionic form. In reverse micelle, the molecule resides in the interfacial region and interacts with bound water. The intermolecular hydrogen bond of the surfactants opens the intramolecular hydrogen bond in the weaker β-ring of bis-HPTA. It led to single tautomer emission from bis-HPTA. An increase in water amount enhances the relative amount of trans-enol, but predominantly tautomer emission is observed.
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Affiliation(s)
- Mongoli Brahma
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Sanjeev Ranjan
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Pravesh Tripathi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - G Krishnamoorthy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India.
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5
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Shekhovtsov NA, Ryadun AA, Bushuev MB. Luminescence of a Zinc(II) Complex with a Protonated 1‐Hydroxy‐1
H
‐imidazole ESIPT Ligand: Direct Excitation of a Tautomeric Form. ChemistrySelect 2021. [DOI: 10.1002/slct.202103695] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Nikita A. Shekhovtsov
- Nikolaev Institute of Inorganic Chemistry Siberian Branch of Russian Academy of Sciences 3, Akad. Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Alexey A. Ryadun
- Nikolaev Institute of Inorganic Chemistry Siberian Branch of Russian Academy of Sciences 3, Akad. Lavrentiev Ave. Novosibirsk 630090 Russia
| | - Mark B. Bushuev
- Nikolaev Institute of Inorganic Chemistry Siberian Branch of Russian Academy of Sciences 3, Akad. Lavrentiev Ave. Novosibirsk 630090 Russia
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6
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Abeywickrama CS, Pang Y. Synthesis of a bis[2-(2′-hydroxyphenyl)benzoxazole]pyridinium derivative: the fluoride-induced large spectral shift for ratiometric response. NEW J CHEM 2021. [DOI: 10.1039/d1nj00044f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A highly sensitive probe for the detection of fluoride by triggered NIR emission.
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Affiliation(s)
| | - Yi Pang
- Department of Chemistry
- University of Akron
- Akron
- USA
- Maurice Morton Institute of Polymer Science, University of Akron
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7
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Stimuli-chromism of photoswitches in smart polymers: Recent advances and applications as chemosensors. Prog Polym Sci 2019. [DOI: 10.1016/j.progpolymsci.2019.101149] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Zhang Y, Wang S. Preparation of Smart Poly(SPAA-co-MMA) Film Materials for Regulating Wettability and Humidity by Electrospinning. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24932] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yang Zhang
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis; Inner Mongolia Normal University; Huhhot 010022 People's Republic of China
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Environmental Chemistry; Inner Mongolia Normal University; Huhhot 010022 People's Republic of China
| | - Shuai Wang
- College of Chemistry and Environmental Science, Inner Mongolia Key Laboratory of Green Catalysis; Inner Mongolia Normal University; Huhhot 010022 People's Republic of China
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9
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Cui L, Zhang H, Zhang G, Zhou Y, Fan L, Shi L, Zhang C, Shuang S, Dong C. Substituent effect on the acid-induced isomerization of spiropyran compounds. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 202:13-17. [PMID: 29777929 DOI: 10.1016/j.saa.2018.04.076] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 04/23/2018] [Accepted: 04/29/2018] [Indexed: 06/08/2023]
Abstract
Spiropyran compounds are well known as an isomeric system, the closed spiropyran (SP) could be converted into the open merocyanine (MC) via acid-induced because stable protonated merocyanine (MCH) were formed by combination of MC and H+. In order to understand how the substituent affect the isomerization of spiropyran. A series of the chromene 7-subsituted spiropyran compounds were designed and synthesized. The photophysical properties of them were studied comparatively by UV-absorption and fluorescence spectra in different pH. The results demonstrated that the various substituents influenced not only the photophysical properties of SP, MC and MCH forms, but also the pKa of the MC-MCH transformation. There was a good linearity relationship between the pKa and the Hammett constant of substituent, the pKa was smaller when the Hammett constant of substituent was larger.
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Affiliation(s)
- Lixia Cui
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Honghong Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Guomei Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Ying Zhou
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Li Fan
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China
| | - Lihong Shi
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Caihong Zhang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China.
| | - Shaomin Shuang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China
| | - Chuan Dong
- Institute of Environmental Science, Shanxi University, Taiyuan 030006, China.
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10
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Sedgwick AC, Wu L, Han HH, Bull SD, He XP, James TD, Sessler JL, Tang BZ, Tian H, Yoon J. Excited-state intramolecular proton-transfer (ESIPT) based fluorescence sensors and imaging agents. Chem Soc Rev 2018; 47:8842-8880. [DOI: 10.1039/c8cs00185e] [Citation(s) in RCA: 690] [Impact Index Per Article: 115.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We review recent advances in the design and application of excited-state intramolecular proton-transfer (ESIPT) based fluorescent probes. These sensors and imaging agents (probes) are important in biology, physiology, pharmacology, and environmental science.
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Affiliation(s)
- Adam C. Sedgwick
- Department of Chemistry
- University of Bath
- Bath
- UK
- Department of Chemistry
| | - Luling Wu
- Department of Chemistry
- University of Bath
- Bath
- UK
| | - Hai-Hao Han
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | | | - Xiao-Peng He
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Tony D. James
- Department of Chemistry
- University of Bath
- Bath
- UK
- Department of Materials and Life Sciences
| | | | - Ben Zhong Tang
- Department of Chemistry
- The Hong Kong University of Science & Technology (HKUST)
- Clear Water Bay
- Kowloon
- China
| | - He Tian
- Key Laboratory for Advanced Materials and Joint International Research Laboratory of Precision Chemistry and Molecular Engineering
- Feringa Nobel Prize Scientist Joint Research Center
- School of Chemistry and Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
| | - Juyoung Yoon
- Department of Chemistry and Nano Science
- Ewha Womans University
- Seoul 120-750
- Korea
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11
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Qiao N, Wei NN, Zhang J, Hao C. The dual-luminescence mechanism of the ESIPT chemosensor tetrasubstituted imidazole core compound: a TDDFT study. NEW J CHEM 2018. [DOI: 10.1039/c8nj01162a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The dual-luminescence mechanism of the tetrasubstituted imidazole core (TIC) compound was theoretically explored by considering the excited-state intramolecular proton transfer (ESIPT) process in the present study.
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Affiliation(s)
- Na Qiao
- School of Life Science and Medicine
- Dalian University of Technology
- Panjin 124221
- P. R. China
| | - Ning-Ning Wei
- School of Life Science and Medicine
- Dalian University of Technology
- Panjin 124221
- P. R. China
| | - Jianing Zhang
- School of Life Science and Medicine
- Dalian University of Technology
- Panjin 124221
- P. R. China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals
- School of Petroleum and Chemical Engineering
- Dalian University of Technology
- Panjin 124221
- P. R. China
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12
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Nie J, Li N, Ni Z, Zhao Y, Zhang L. A sensitive tetraphenylethene-based fluorescent probe for Zn 2+ ion involving ESIPT and CHEF processes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.04.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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13
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Synthesis of fused 2-(2′-hydroxyphenyl)benzoxazole derivatives: the impact of meta-/para-substitution on fluorescence and zinc binding. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.06.098] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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New AB2 type two-photon absorption dyes for well-separated dual-emission: molecular preorganization based approach to photophysical properties. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.04.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Zhao W, Li Y, Yang S, Chen Y, Zheng J, Liu C, Qing Z, Li J, Yang R. Target-Activated Modulation of Dual-Color and Two-Photon Fluorescence of Graphene Quantum Dots for in Vivo Imaging of Hydrogen Peroxide. Anal Chem 2016; 88:4833-40. [PMID: 27072323 DOI: 10.1021/acs.analchem.6b00521] [Citation(s) in RCA: 67] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The development of nanoprobes suitable for two-photon microscopy techniques is highly desirable for mapping biological species in living systems. However, at the current stage, the nanoprobes are restricted to single-color fluorescence changes, making it unsuitable for quantitative detection. To circumvent this problem, we report here a rational design of a dual-emission and two-photon (TP) graphene quantum dot (GQD(420)) probe for imaging of hydrogen peroxide (H2O2). For specific recognition of H2O2 and lighting the fluorescence of TPGQD(420), a boronate ester-functionalized merocyanine (BMC) fluorophore was used as both target-activated trigger and the dual-emission fluorescence modulator. Upon two-photon excitation at 740 nm, TPGQD(420)-BMC displays a green-to-blue resolved emission band in response to H2O2 with an emission shift of 110 nm, and the H2O2 can be determined from 0.2 to 40 μM with a detection limit of 0.05 μM. Moreover, the fluorescence response of the TPGQD(420)-BMC toward H2O2 is rapid and extremely specific. The feasibility of the proposed method is demonstrated by two-photon ratiometrically mapping the production of endogenous H2O2 in living cells as well as in deep tissues of murine mode at 0-600 μm. To the best of our knowledge, this is the first paradigm to rationally design a dual-emission and two-photon nanoprobe via fluorescence modulation of GQDs with switchable molecules, which will extend new possibility to design powerful molecular tools for in vivo bioimaging applications.
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Affiliation(s)
- Wenjie Zhao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China
| | - Yinhui Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China
| | - Sheng Yang
- School of Chemistry and Biological Engineering, Changsha University of Science and Technology , Changsha, 410004, People's Republic of China
| | - Yun Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China
| | - Jing Zheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China
| | - Changhui Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China
| | - Zhihe Qing
- School of Chemistry and Biological Engineering, Changsha University of Science and Technology , Changsha, 410004, People's Republic of China
| | - Jishan Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China
| | - Ronghua Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, and Collaborative Innovation Center for Chemistry and Molecular Medicine, Hunan University , Changsha, 410082, People's Republic of China.,School of Chemistry and Biological Engineering, Changsha University of Science and Technology , Changsha, 410004, People's Republic of China
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16
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Liu BQ, Chen YT, Chen YW, Chung KY, Tsai YH, Li YJ, Chao CM, Liu KM, Tseng HW, Chou PT. Ethylene glycol modified 2-(2′-aminophenyl)benzothiazoles at the amino site: the excited-state N-H proton transfer reactions in aqueous solution, micelles and potential application in live-cell imaging. Methods Appl Fluoresc 2016. [DOI: 10.1088/2050-6120/4/1/014004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Santos FDS, Medeiros NG, Affeldt RF, Duarte RDC, Moura S, Rodembusch FS. Small heterocycles as highly luminescent building blocks in the solid state for organic synthesis. NEW J CHEM 2016. [DOI: 10.1039/c5nj02943k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
ESIPT photoactive mono-formylated benzoxazole derivatives obtained through a Duff functionalization protocol using a simple synthetic methodology.
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Affiliation(s)
- Fabiano da Silveira Santos
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Natália Goedtel Medeiros
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Ricardo Ferreira Affeldt
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Rodrigo da Costa Duarte
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
| | - Sidnei Moura
- LBIOP – Laboratory of Biotechnology of Natural and Synthetics Products
- Technology Department
- Biotechnology Institute
- University of Caxias do Sul
- Caxias do Sul
| | - Fabiano Severo Rodembusch
- Grupo de Pesquisa em Fotoquímica Orgânica Aplicada
- Universidade Federal do Rio Grande do Sul – Instituto de Química
- CEP 91501-970 Porto Alegre-RS
- Brazil
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18
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You QH, Lee YM, Chan WH, Mak NK, Lee AWM, Hau SCK, Mak TCW. A colorimetric and ratiometric fluorescent pH probe based on ring opening/closing approach and its applications in monitoring cellular pH change. RSC Adv 2015. [DOI: 10.1039/c4ra13445a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A cell permeable colorimetric and ratiometric fluorescent pH probe with a pKavalue of 6.0 has been developed.
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Affiliation(s)
- Qi-Hua You
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
- Partner State Key Laboratory of Environmental and Bioanalysis
| | - Yee Man Lee
- Department of Biology
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Wing Hong Chan
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
- Partner State Key Laboratory of Environmental and Bioanalysis
| | - Nai Ki Mak
- Department of Biology
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Albert W. M. Lee
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
| | - Sam C. K. Hau
- Department of Chemistry
- Hong Kong Baptist University
- Kowloon Tong
- China
- Department of Chemistry
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19
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Wan S, Zheng Y, Shen J, Yang W, Yin M. "On-off-on" switchable sensor: a fluorescent spiropyran responds to extreme pH conditions and its bioimaging applications. ACS APPLIED MATERIALS & INTERFACES 2014; 6:19515-19519. [PMID: 25394564 DOI: 10.1021/am506641t] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel spiropyran that responds to both extreme acid and extreme alkali and has an "on-off-on" switch is reported. Benzoic acid at the indole N-position and carboxyl group at the indole 6-position contribute to the extreme acid response. The ionizations of carboxyl and phenolic hydroxyl groups cause the extreme alkali response. Moreover, the fluorescent imaging in bacterial cells under extreme pH conditions supports the mechanism of pH response.
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Affiliation(s)
- Shulin Wan
- State Key Laboratory of Chemical Resource Engineering, Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology , Beijing 100029, China
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20
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Santos FS, Ramasamy E, Ramamurthy V, Rodembusch FS. Excited state chemistry of flavone derivatives in a confined medium: ESIPT emission in aqueous media. Photochem Photobiol Sci 2014; 13:992-6. [PMID: 24901799 DOI: 10.1039/c4pp00096j] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The excited state behavior of two flavone derivatives 3-hydroxyflavone and 4'-N,N-diethylaminoflavonol in a confined medium indicates that supramolecular effects could alter the nature of the fluorescence emission. Within the octa acid host the neutral unionized species of these two dyes are present showing large Stokes shifted emission due to intramolecular proton transfer, a pattern different from that in aqueous medium.
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Affiliation(s)
- Fabiano S Santos
- Department of Chemistry, University of Miami, Coral Gables, Florida 33124, USA
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21
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Huang W, Lin W, Guan X. Development of ratiometric fluorescent pH sensors based on chromenoquinoline derivatives with tunable pKa values for bioimaging. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2013.10.130] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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22
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Zeng L, Chen S, Xia T, Zhong C, Liu Z. Designing two-photon fluorescent probes based on the target-induced enhancement of the absorption cross-section. Chem Commun (Camb) 2014; 50:11139-42. [DOI: 10.1039/c4cc05010j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have reported a new strategy for two-photon probe design for the simultaneous target-induced enhancement of the two-photon absorption cross-section and quantum yield.
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Affiliation(s)
- Lingyu Zeng
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072, China
| | - Shiyu Chen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072, China
| | - Tian Xia
- College of Life Science
- Wuhan University
- Wuhan 430072, China
| | - Cheng Zhong
- Hubei Key Laboratory of Organic and Polymeric Optoelectronic Materials
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072, China
| | - Zhihong Liu
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072, China
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You QH, Fan L, Chan WH, Lee AWM, Shuang S. Ratiometric spiropyran-based fluorescent pH probe. RSC Adv 2013. [DOI: 10.1039/c3ra41456f] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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