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Alekseyev RS, Aliyev FN, Terenin VI. Methods for the synthesis of 3H-pyrrolo[2,3-c]quinolines. Chem Heterocycl Compd (N Y) 2022. [DOI: 10.1007/s10593-021-03036-9] [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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Pandit S, Bapli A, Seth D. Photophysics of a cyanine dye in the protein-surfactant aggregates. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.118276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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3
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Sun W, Xu H, Bao S, Yang W, Shen W, Hu G. A novel fluorescent probe based on triphenylamine for detecting sulfur dioxide derivatives. NEW J CHEM 2022. [DOI: 10.1039/d1nj06099f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
According to the nucleophilicity of sulfur dioxide derivatives, a reactive fluorescent probe was designed and synthesized by linking triphenylamine with benzoindole.
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Affiliation(s)
- Wei Sun
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, China
| | - Hanhan Xu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, China
| | - Shuqin Bao
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, China
| | - Wenge Yang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, China
| | - Weiliang Shen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, China
| | - Guoxing Hu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, No. 30, South Puzhu Road, Nanjing 211816, China
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4
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Dias do Espírito Santo R, Capitão RM, Santos Barbosa P, Simão dos Santos EF, Roque Duarte Correia C. The Chemistry and Biological Applications of 3
H‐
Pyrrolo[2,3‐
c
]quinolines and Marinoquinolines. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Rafael Dias do Espírito Santo
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Rebeca Monique Capitão
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Patrícia Santos Barbosa
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Eric Francisco Simão dos Santos
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
| | - Carlos Roque Duarte Correia
- Department of Organic Chemistry Chemistry Institute University of Campinas – UNICAMP Campinas São Paulo CEP 13083–970 Brazil
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5
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Pawar S, Togiti UK, Bhattacharya A, Nag A. Functionalized Chitosan-Carbon Dots: A Fluorescent Probe for Detecting Trace Amount of Water in Organic Solvents. ACS OMEGA 2019; 4:11301-11311. [PMID: 31460233 PMCID: PMC6648781 DOI: 10.1021/acsomega.9b01208] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Accepted: 06/18/2019] [Indexed: 05/05/2023]
Abstract
A novel nanoprobe was designed and synthesized by functionalizing chitosan-carbon dots (CDs) with a modified bipyridine-based heterocyclic molecule, 4-(pyridine-2-yl)-3H-pyrrolo[2,3-c]quinoline (PPQ), to detect trace amount of water via fluorescence methods. The functionalized CDs (PPQ-CDs) were thoroughly characterized using dynamic light scattering, UV-vis, X-ray diffraction, Fourier transform infrared, X-ray photoelectron spectroscopy, high-resolution transmission electron microscopy, and NMR techniques. The modified fluorescence intensity of PPQ-CDs was found to be an excellent indicator for water in organic solvents. The PPQ-CDs showed very weak fluorescence intensity in organic solvents due to a possible photoinduced electron transfer (PET) process between PPQ pyrrole nitrogen and acceptor groups of CDs. However, sequential addition of trace amount of water led to continuous enhancement in the fluorescence intensity for the PPQ-CD nanocomposites. The mechanism was proposed to follow suppression of the PET process due to the formation of "free-ions" by the proton transfer from the CD carboxyl group to pyrrole nitrogen through water bridging. The limit of water detection was determined to be 0.023% (v/v) in DMSO.
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Affiliation(s)
- Shweta Pawar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Uday Kumar Togiti
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Anupam Bhattacharya
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
| | - Amit Nag
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Hyderabad Campus, Hyderabad 500078, India
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6
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Pawar S, Bhattacharya A, Nag A. Metal-Enhanced Fluorescence Study in Aqueous Medium by Coupling Gold Nanoparticles and Fluorophores Using a Bilayer Vesicle Platform. ACS OMEGA 2019; 4:5983-5990. [PMID: 31459747 PMCID: PMC6648612 DOI: 10.1021/acsomega.9b00036] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Accepted: 03/19/2019] [Indexed: 05/21/2023]
Abstract
Gold nanoparticles (AuNPs) display excellent plasmonic properties, which are expected to assist fluorescence enhancement for dyes, and the phenomenon is known as "metal-enhanced fluorescence" (MEF). In this study, we demonstrate AuNP-induced MEF for a modified bipyridine-based construct 4-(pyridine-2-yl)-3H-pyrrolo[2,3-c]quinoline (PPQ) when it binds with biologically important Zn2+. Importantly, this phenomenon is observed under aqueous conditions in a biocompatible bilayer vesicle platform. When PPQ binds with Zn2+ to form the complex in the presence of appropriate AuNPs, MEF is evident once compared with the fluorescence intensity in the absence of AuNPs. Among the three different sizes of AuNPs used, the enhancement is observed with an average diameter of 33 nm, whereas 18 and 160 nm do not show any enhancement. A possible mechanism is ascribed to the radiating plasmons of the AuNPs, which can couple with the emission frequencies of the fluorophore under a critical distance-dependent arrangement. We witness that the enhancement in fluorescence is accompanied with a reduction in lifetime components. It is proposed that the mechanism may be predominantly derived from the enhancement of an intrinsic radiative decay rate and partly from the localized electric field effect. Overall, this work shows a rational approach to design fluorophore-metal configurations with the desired emissive properties and a basis for a useful nanophotonic technology under biological conditions.
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Affiliation(s)
- Shweta Pawar
- Department of Chemistry, Birla
Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad 500078, India
| | - Anupam Bhattacharya
- Department of Chemistry, Birla
Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad 500078, India
| | - Amit Nag
- Department of Chemistry, Birla
Institute of Technology and Science (BITS) Pilani, Hyderabad Campus, Jawahar Nagar, Kapra Mandal, Hyderabad 500078, India
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7
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Fan J, Ding L, Fang Y. Surfactant Aggregates Encapsulating and Modulating: An Effective Way to Generate Selective and Discriminative Fluorescent Sensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:326-341. [PMID: 30063363 DOI: 10.1021/acs.langmuir.8b02111] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The heterogeneous structure and dynamic balancing nature of surfactant aggregates make them attractive in developing fluorescent sensors. They can provide a number of advantages, e.g., enhanced fluorescence stability and quantum yield, detection capability in aqueous solutions, and easy operation. Thus, various strategies have been used to construct surfactant aggregate-based fluorescent sensors. Surfactant aggregates play various roles in different strategies and realize multiple sensing behaviors. Many new functions have been discovered for surfactant aggregates in constructing fluorescent sensors. In this feature article, we briefly summarize the development of surfactant aggregate-based fluorescent sensors and their applications in three different types of sensing: selective sensing, multiple analyte sensing, and cross-reactive sensing. For each type of sensing, the design strategies and the roles of surfactant aggregates are particularly introduced. An understanding of these aspects will help to expand the applications of surfactant assemblies in the sensing field.
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Affiliation(s)
- Junmei Fan
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , P. R. China
| | - Liping Ding
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , P. R. China
| | - Yu Fang
- Key Laboratory of Applied Surface and Colloid Chemistry, School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an 710119 , P. R. China
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Gude V, Rout D, Panigrahi MK, Biradha K. Origin of green photoluminescence in four-ring bent-core molecules with ESIPT, selective sensing of zinc ions by turn-on emission and their liquid crystal properties. Photochem Photobiol Sci 2018; 17:1386-1395. [DOI: 10.1039/c8pp00216a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorescent four-ring symmetrical/unsymmetrical molecules containing alkyl chains of a varied number of –CH2– groups with a bent-core have been synthesized to explore their liquid crystalline (LC) and photophysical properties.
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Affiliation(s)
- Venkatesh Gude
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur
- India
| | - Duttanjali Rout
- Department of Geology and Geophysics
- Indian Institute of Technology
- Kharagpur
- India
| | | | - Kumar Biradha
- Department of Chemistry
- Indian Institute of Technology
- Kharagpur
- India
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Shabunina OV, Kapustina DY, Krinochkin AP, Kim GA, Kopchuk DS, Zyryanov GV, Li F, Chupakhin ON. π-Extended fluorophores based on 5-aryl-2,2 ’ -bipyridines: synthesis and photophysical studies. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.11.021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Pawar SV, Togiti UK, Trivedi P, Ghosh B, Bhattacharya A, Nag A. FRET-Mediated Zn 2+
Sensing in Aqueous Micellar Solution: Application in Cellular Imaging and Molecular Logic Gate. ChemistrySelect 2017. [DOI: 10.1002/slct.201701350] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Shweta V. Pawar
- Department of Chemistry; BITS Pilani Hyderabad Campus; Hyderabad- 500078 India
| | - Uday Kumar Togiti
- Department of Chemistry; BITS Pilani Hyderabad Campus; Hyderabad- 500078 India
| | - Prakruti Trivedi
- Department of Pharmacy; BITS Pilani Hyderabad Campus; Hyderabad- 500078 India
| | - Balaram Ghosh
- Department of Pharmacy; BITS Pilani Hyderabad Campus; Hyderabad- 500078 India
| | - Anupam Bhattacharya
- Department of Chemistry; BITS Pilani Hyderabad Campus; Hyderabad- 500078 India
| | - Amit Nag
- Department of Chemistry; BITS Pilani Hyderabad Campus; Hyderabad- 500078 India
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Wang H, Han SH. Bis-ratiometric absorbance detection of Al(III) in the rhodamine B-functionalized bis-polydiacetylene film. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0205-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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