1
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Tada K, Ikegaki C, Fuse Y, Tateishi K, Sogawa H, Sanda F. Optically active polyaromatic Schiff base adopting stable secondary structures. POLYMER 2023. [DOI: 10.1016/j.polymer.2023.125703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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2
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Comprehensive Empirical Model of Substitution—Influence on Hydrogen Bonding in Aromatic Schiff Bases. Int J Mol Sci 2022; 23:ijms232012439. [DOI: 10.3390/ijms232012439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 11/16/2022] Open
Abstract
In this work, over 500 structures of tri-ring aromatic Schiff bases with different substitution patterns were investigated to develop a unified description of the substituent effect on the intramolecular hydrogen bridge. Both proximal and distal effects were examined using Density Functional Theory (DFT) in the gas phase and with solvent reaction field (Polarizable Continuum Model (PCM) and water as the solvent). In order to investigate and characterize the non-covalent interactions, a topological analysis was performed using the Quantum Theory of Atoms In Molecules (QTAIM) theory and Non-Covalent Interactions (NCI) index. The obtained results were summarized as the generalized, empirical model of the composite substituent effect, assessed using an additional group of simple ring-based Schiff bases. The composite substituent effect has been divided into separate increments describing the different interactions of the hydrogen bridge and the substituent: the classical substituent effect, involving resonance and induction mediated through the ring, steric increment based on substituent proximity to the bridge elements, and distal increment, derived from substitution on the distal ring.
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3
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Lei P, Feng Y, Meng T, Zhang Y, Xiao X, Deng K, Liu Y, Zeng Q. Effects of functional groups and side chains on assembly of "X"-shaped new aggregation-induced emission molecules. J Colloid Interface Sci 2022; 623:238-246. [PMID: 35588631 DOI: 10.1016/j.jcis.2022.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 04/19/2022] [Accepted: 05/04/2022] [Indexed: 11/24/2022]
Abstract
The self-assembly properties of aggregation-induced emission molecules play important roles in electroluminescence devices and fluorescence sensors because noncovalent interactions in self-assembly structures would accelerate the excitation energy consumption. However, there are only few studies to explore their self-assembly properties on the interface and there is still a great need for further understanding self-assembled mechanisms from the viewpoint of molecular design. Here, we presented three X-shaped aggregation-induced emission molecules X1, X2 and X3, which decorated with different functional groups and alkyl side chains. The self-assembly structures were revealed by scanning tunneling microscopy technique in combination with density functional theory. Results showed that X-shaped molecules self-assembled into different structures, depending on their molecular structure, especially the functional groups. Furthermore, self-assembly structures could be regulated by adjusting solution concentration. In more detail, parallel with gradually increasing solution concentration, the molecules approached closer and molecule-molecule interactions were enhanced, finally resulting in new nanostructures. The self-assembly properties of three X-shaped aggregation-induced emission molecules on the liquid/solid interface would give a guidance for further exploring the aggregation state in three-dimensional space. Meanwhile, the two-dimensional nanostructures might show special properties, which could be used in fabricating next generation functional films.
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Affiliation(s)
- Peng Lei
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China; Center of Materials Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China; College of Material Science and Chemical Engineering, Ningbo, University of Technology, 201 Fenghua Road, Ningbo 315211, China
| | - Yang Feng
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China
| | - Ting Meng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China; Center of Materials Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yufei Zhang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China; Center of Materials Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xunwen Xiao
- College of Material Science and Chemical Engineering, Ningbo, University of Technology, 201 Fenghua Road, Ningbo 315211, China
| | - Ke Deng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China.
| | - Yi Liu
- Shenzhen Key Laboratory of Polymer Science and Technology, Guangdong Research Center for Interfacial Engineering of Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
| | - Qingdao Zeng
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology (NCNST), Beijing 100190, China; Center of Materials Science and Optoelectonics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
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4
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Shokrollahi S, Amiri A, Schenk-Joß K. Binding affinity of p-PD-based schiff-bases towards human serum albumin; in-vitro and in-silico assessment. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.132399] [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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5
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Duan Y, Liu Y, Han H, Geng H, Liao Y, Han T. A dual-channel indicator of fish spoilage based on a D-π-A luminogen serving as a smart label for intelligent food packaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 266:120433. [PMID: 34601370 DOI: 10.1016/j.saa.2021.120433] [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: 05/06/2021] [Revised: 09/22/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Advances in food monitoring benefit tremendously from the naked-eye observation and device-miniaturization of colorimetric and fluorometric methods. Intelligent food packaging, containing a built-in sensor inside food bags, is capable of real-time monitoring of food quality by visibly discernible out-put signals, which effectively ensures food safety. We synthesized a donor-π-acceptor (D-π-A) compound DPABA, and disclosed its fluorescence response to amines. According to quantum chemical calculations, DPABA is apt to D-A coupling in aggregated state, causing the formation of exciplex/excimer together with intermolecular charge/energy transfer to the disadvantage of light emission; while the evasion of amine vapors would decouple the intermolecular D-A interactions to induce stronger emission with shorter wavelength. Utilizing the amine vapor generated by fish, DPABA can serve as an indicator for freshness monitoring. To create an intelligent food package, the compound was made into cellulose film, which was further cut into smart labels to be encapsulated into food bags. The as-prepared smart label exhibits red color under ambient light and glows weak red emission under UV light, while it turns into faint yellow color in response to putrid fish, and its emission changes to bright cyan. The output signals can be accurately recorded by instrument, and detected by naked eye, suggesting high signal contrast. In addition, the smart label exhibits different changing scope in response to different degree of freshness, showing high potential for in-field detection.
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Affiliation(s)
- Yuai Duan
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yang Liu
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing, 100015, China
| | - Hongliang Han
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Hua Geng
- Department of Chemistry, Capital Normal University, Beijing, 100048, China
| | - Yi Liao
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
| | - Tianyu Han
- Department of Chemistry, Capital Normal University, Beijing, 100048, China.
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6
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Duan Y, Liu Y, Han H, Zhang X, Zhang M, Liao Y, Han T. A donor-π-acceptor aggregation-induced emission compound serving as a portable fluorescent sensor for detection and differentiation of methanol and ethanol in the gas phase. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 252:119515. [PMID: 33578122 DOI: 10.1016/j.saa.2021.119515] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 01/19/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
The design strategy of aggregation-induced emission (AIE) fluorophores with donor-π-acceptor (D-π-A) conjugation structure has greatly contributed to the development of luminescent materials and devices, including volatile organic compounds (VOCs) sensors. In this work, a D-π-A fluorophore DEBAB was synthesized, showing both AIE and intramolecular charge transfer (ICT) properties as confirmed by spectroscopic data and quantum chemical calculations. Furthermore, there is notable emission-enhancement when DEBAB is exposed to small-molecule alcohols, such as methanol and ethanol. Based on this phenomenon, a portable film sensor was fabricated, capable of detecting methanol and ethanol in gas phase, with detection limit (DL) as low as 8.02 ppm. Our systematic investigation suggests that hydrogen-bonding may be formed between DEBAB and alcohols, intensifying the AIE efficacy while influencing the ICT process. This working mechanism is supported by density functional theory (DFT) calculations including electrostatic potential mapping and molecular total energy. In addition, a sensor array was fabricated on a cellulose paper strip, showing different levels of emission changing in response to alcohols. Thus the detection and differentiation of methanol and ethanol are enabled.
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Affiliation(s)
- Yuai Duan
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yang Liu
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China
| | - Hongliang Han
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xunxue Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Mengyao Zhang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yi Liao
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Tianyu Han
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
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7
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Johnee Britto N, Panneerselvam M, Deepan Kumar M, Kathiravan A, Jaccob M. Substituent Effect on the Photophysics and ESIPT Mechanism of N, N'-Bis(salicylidene)- p-phenylenediamine: A DFT/TD-DFT Analysis. J Chem Inf Model 2021; 61:1825-1839. [PMID: 33843222 DOI: 10.1021/acs.jcim.0c01430] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Excited-state intramolecular proton transfer (ESIPT) and intramolecular charge transfer (ICT) processes are widely exploited in the designing of organic materials for multifarious applications. This work explores the aftereffects of combining both ESIPT and ICT events in a single molecule, namely, N,N'-bis(salicylidene)-p-phenylenediamine (BSP) exploiting DFT and TD-DFT formalisms. The PBE0 functional employed in the present study is found to yield results with better accuracy for excited-state calculations. The results reveal that introduction of electron donor (-NH2) and electron acceptor (-NO2) substituents on BSP produces a strikingly red-shifted emission with respect to the corresponding emission from the unsubstituted analogue in polar solvents. This red-shifted emission originated due to the coupled effect of ESIPT and planar-ICT (PICT) processes from the coplanar geometry adopted by the substituted molecule (s-BSP). Based on the computed potential energy curves, the ground-state intramolecular proton transfer (GSIPT) was found to take place more favorably in s-BSP than in BSP under all solvent conditions. In the case of ESIPT, the barrier and relative energies of the phototautomers of s-BSP were slightly higher than BSP, which shows that simultaneous substitution of -NH2 and -NO2 groups causes slight perturbation to the ESIPT process. Overall, the computed results show that simultaneous substitution of suitable electron donor and acceptor substituents provides profitable changes in the photophysical properties of ESIPT molecules like BSP. These molecular-level insights will pave way for designing better materials for diverse applications.
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Affiliation(s)
- Neethinathan Johnee Britto
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Murugesan Panneerselvam
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Madhu Deepan Kumar
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
| | - Arunkumar Kathiravan
- Department of Chemistry, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Avadi, Chennai 600 062, Tamil Nadu, India
| | - Madhavan Jaccob
- Department of Chemistry & Computational Chemistry Laboratory, Loyola Institute of Frontier Energy (LIFE), Loyola College (Autonomous), University of Madras, Chennai 600 034, Tamil Nadu, India
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Lina G, Gao Y, Han L. Detecting Cu2+ and H2O in methanol based on aggregation-induced emission fluorescent enhancement. J COORD CHEM 2021. [DOI: 10.1080/00958972.2021.1897114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Guo Lina
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot, PR China
| | - Yuanyuan Gao
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot, PR China
| | - Limin Han
- Chemical Engineering College, Inner Mongolia University of Technology, Hohhot, PR China
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9
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Park J, Lee JH, Lim B, Lee NK, Sim G, Ryu S, Kim I, Hwang H, Lee J. Fine Tuning of the HOMO–LUMO Gap of 6‐(Thiophen‐2‐yl) indolizino[3,2‐
c
]quinolines and their Self‐Assembly to Form Fluorescent Organic Nanoparticles: Rational Design and Theoretical Calculations. CHEMPHOTOCHEM 2021. [DOI: 10.1002/cptc.202000099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jaehyun Park
- College of Pharmacy Research Institute of Pharmaceutical sciences Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 (Republic of Korea
| | - Ji Hye Lee
- Department of Chemistry Institute for Molecular Science and Fusion Technology Kangwon National University Chuncheon, Gangwon 24341 (Republic of Korea
| | - Bumhee Lim
- College of Pharmacy Research Institute of Pharmaceutical sciences Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 (Republic of Korea
| | - Na Keum Lee
- College of Pharmacy Research Institute of Pharmaceutical sciences Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 (Republic of Korea
| | - Gyuseok Sim
- College of Pharmacy Research Institute of Pharmaceutical sciences Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 (Republic of Korea
| | - Seol Ryu
- Department of Chemistry Chosun University Gwangju 61452 (Republic of Korea
| | - Ikyon Kim
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences Yonsei University 85 Songdogwahak-ro, Yeonsu-gu Incheon 21983 (Republic of Korea
| | - Hyonseok Hwang
- Department of Chemistry Institute for Molecular Science and Fusion Technology Kangwon National University Chuncheon, Gangwon 24341 (Republic of Korea
| | - Jeeyeon Lee
- College of Pharmacy Research Institute of Pharmaceutical sciences Seoul National University 1 Gwanak-ro, Gwanak-gu Seoul 08826 (Republic of Korea
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10
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Flavanone-Based Fluorophores with Aggregation-Induced Emission Enhancement Characteristics for Mitochondria-Imaging and Zebrafish-Imaging. Molecules 2020; 25:molecules25143298. [PMID: 32708080 PMCID: PMC7397278 DOI: 10.3390/molecules25143298] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/14/2020] [Accepted: 07/15/2020] [Indexed: 01/06/2023] Open
Abstract
Fluorophores with aggregation-induced emission enhancement (AIEE) characteristics applied in bioimaging have attracted more and more attention in recent years. In this work, a series of flavanone compounds with AIEE characteristics was developed and applied to fluorescence imaging of mitochondria and zebrafish. The compounds were readily prepared by the thermal dehydration of chalcone that was obtained by the reaction of o-hydroxyacetophenone and benzaldehyde. Two of these compounds showed significant AIEE characteristics by fluorescence performance experiments, including optical spectra, fluorescence spectra, fluorescence quantum yield (φF), fluorescence lifetime, and scanning electron microscopy (SEM). Compared with traditional organic fluorescent dyes, these compounds have high fluorescence emission and high fluorescence quantum yield in solid or aggregated state, which overcomes the shortcoming of aggregation-caused quenching (ACQ). More importantly, the two compounds exhibited low cytotoxicity and good cytocompatibility in A549 lung cells at the experimental concentration range and they specifically targeted mitochondria, which make it of great potential use in mitochondria labeling. In addition, they were embryonic membrane permeable and had different affinities for different tissues and organs of zebrafish, but mainly distributed in the digestive system, providing a basis for the application of such compounds in bioimaging. These AIEE compounds with superior properties could be of great potential use in mitochondria imaging and other in vivo studies.
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11
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Huang L, Qian C, Ma Z. Stimuli-Responsive Purely Organic Room-Temperature Phosphorescence Materials. Chemistry 2020; 26:11914-11930. [PMID: 32159896 DOI: 10.1002/chem.202000526] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/10/2020] [Indexed: 12/23/2022]
Abstract
This Minireview summarizes the recent progress of stimuli-responsive purely organic phosphorescence materials. Organic phosphorescence is closely related to the intermolecular interactions, because such interactions are beneficial to promote spin orbital coupling (SOC) and boost intersystem cross (ISC) efficiency and finally are conducive to satisfactory phosphorescence. It is found that the intermolecular interactions, which are essential for organic phosphorescence, are easily disturbed by external stimuli such as mechanical force, photon, acid, chemical vapor, leading to the luminescence change. According to this principle, various purely organic phosphorescence materials sensitive to external stimuli have been developed. This Minireview categorizes reported stimuli-responsive purely organic phosphorescence materials on the basis of different stimuli, including mechanochromism, mechanoluminescence, photoactivity, acid-responsiveness and other stimuli. Some prospective strategies for constructing stimuli-responsive purely organic phosphorescence molecules are provided.
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Affiliation(s)
- Lili Huang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of, Chemical Technology, Beijing, 100029, P. R. China
| | - Chen Qian
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of, Chemical Technology, Beijing, 100029, P. R. China
| | - Zhiyong Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of, Chemical Technology, Beijing, 100029, P. R. China
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12
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13
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Binuclear and polymeric Zn(II) and Cd(II) coordination compounds with chromophore N-((pyridin-4-yl)methylene)benzene-1,4-diamine obtained in situ: Preparation, structural and spectroscopic study. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.03.034] [Citation(s) in RCA: 5] [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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14
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Selective and Sensitive Fluorescence Probe for Detection of Al3+ in Food Samples Based on Aggregation-Induced Emission and Its Application for Live Cell Imaging. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01521-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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15
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Wu T, Huang J, Yan Y. Self-Assembly of Aggregation-Induced-Emission Molecules. Chem Asian J 2019; 14:730-750. [PMID: 30839162 DOI: 10.1002/asia.201801884] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 01/30/2019] [Indexed: 12/16/2022]
Abstract
The last decade has witnessed rapid developments in aggregation-induced emission (AIE). In contrast to traditional aggregation, which causes luminescence quenching (ACQ), AIE is a reverse phenomenon that allows robust luminescence to be retained in aggregated and solid states. This makes it possible to fabricate various highly efficient luminescent materials, which opens new paradigms in a number of fields, such as imaging, sensing, medical therapy, light harvesting, light-emitting devices, and organic electronic devices. Of the various important features of AIE molecules, their self-assembly behavior is very attractive because the formation of a well-defined emissive nanostructure may lead to advanced applications in diverse fields. However, due to the nonplanar topology of AIEgens, it is not easy for them to self-assemble into well-defined structures. To date, some strategies have been proposed to achieve the self-assembly of AIEgens. Herein, we summarize the most recent approaches for the self-assembly of AIE molecules. These approaches can be sorted into two classes: 1) covalent molecular design and 2) noncovalent supramolecular interactions. We hope this will inspire more excellent work in the field of AIE.
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Affiliation(s)
- Tongyue Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences (BNLMS), State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China
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Halder S, Manna U, Das G. Tuning the aggregation performance by varying the substituent position: comparative study of neutral bis-urea derivatives in aqueous medium. NEW J CHEM 2019. [DOI: 10.1039/c9nj03297e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A set of three neutral bis-urea derivatives has been purposefully chosen to investigate the consequences of positional isomers on the aggregation performance.
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Affiliation(s)
- Senjuti Halder
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | - Utsab Manna
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | - Gopal Das
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
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17
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Hou J, Du J, Hou Y, Shi P, Liu Y, Duan Y, Han T. Effect of substituent position on aggregation-induced emission, customized self-assembly, and amine detection of donor-acceptor isomers: Implication for meat spoilage monitoring. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 205:1-11. [PMID: 30007896 DOI: 10.1016/j.saa.2018.07.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/20/2018] [Accepted: 07/07/2018] [Indexed: 06/08/2023]
Abstract
We synthesized a class of positional isomers by attaching electron donor and acceptor units in different sites of a conjugated core. These isomers exhibit both aggregation-induced emission (AIE) and intramolecular charge transfer (ICT) effects, which are proved by adequate spectroscopic analysis. Their structure-property relationships were systematically studied. We found that relocation of the D/A units would have remarkable impact on the intermolecular dipole-dipole interaction, further controlling the shape and color of the self-assembled architectures. With D/A units shifting to different sites, four types of the structures appear sequentially, including quadrate microsheets, microrods, nanofilaments and nanowires. Furthermore, the A unit (benzoic acid moiety) of the AIE isomers is easy to adsorb amines, leading to changes in both emission wavelength and intensity. Then a portable sensor is prepared on solid support based on the self-assembled architecture of HMBA-4, which has been proved to be the most sensitive to amines. It affords fast spectral responses as well as a low detection limit of 186 Pa (vapour pressure). The sensing mechanism was revealed by density functional theory (DFT) calculation, which indicates that the spectral responses stem from the weakened ICT effect. The sensor is able to detect amine vapours generated by meat, and thus succeeds in detecting the spoiled pork samples, offering high potential for meat spoilage monitoring in real-world applications.
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Affiliation(s)
- Jingdan Hou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Jiaorui Du
- School of Chemistry, Beijing Institute of Technology, Beijing 100081, China
| | - Yue Hou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Peijun Shi
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yang Liu
- Beijing Key Laboratory of Radiation Advanced Materials, Beijing Research Center for Radiation Application, Beijing 100015, China
| | - Yuai Duan
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
| | - Tianyu Han
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
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19
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Granchak VM, Sakhno TV, Korotkova IV, Sakhno YE, Kuchmy SY. Aggregation-Induced Emission in Organic Nanoparticles: Properties and Applications: a Review. THEOR EXP CHEM+ 2018. [DOI: 10.1007/s11237-018-9558-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Wang C, Fu J, Yao K, Chang Y, Yang L, Xu K. Development of Acridine-Derived “Turn On” Al3+
Fluorescent Sensors and Their Imaging in Living Cells. ChemistrySelect 2018. [DOI: 10.1002/slct.201800158] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Chaoyu Wang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Jiaxin Fu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Kun Yao
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Yongxin Chang
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Li Yang
- Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
| | - Kuoxi Xu
- Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
- Engineering Laboratory for Flame Retardant and Functional Materials of Hennan Province, College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 China
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21
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Sahu S, Ila, Shankar B, Sathiyendiran M, Krishnamoorthy G. Molecular aggregation to obtain conformer specific enhanced emissions from a triple emissive ESIPT dye. J Photochem Photobiol A Chem 2018. [DOI: 10.1016/j.jphotochem.2017.11.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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22
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Dhingra S, Barman DJ, Yadav HR, Eyyathiyil J, Bhowmik P, Kaur P, Adhikari D, Roy Choudhury A. Structural and computational understanding of weak interactions in “bridge-flipped” isomeric tetrafluoro-bis-benzylideneanilines. CrystEngComm 2018. [DOI: 10.1039/c7ce01872j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural and computational insights into inter-molecular interactions in isomeric bridge-flipped tetrafluoro-bis-benzylideneanilines.
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Affiliation(s)
- Shallu Dhingra
- Department of Chemistry and Centre of Advanced Studies in Chemistry
- Panjab University
- Chandigarh
- India
| | | | - Hare Ram Yadav
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
| | - Jusaina Eyyathiyil
- Indian Institute of Science Education and Research Bhopal
- Bhopal 462066
- India
| | - Prasanta Bhowmik
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
| | - Parmeet Kaur
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
| | - Debashis Adhikari
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
| | - Angshuman Roy Choudhury
- Department of Chemical Sciences
- Indian Institute of Science Education and Research Mohali
- Mohali
- India
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23
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Influence of Odd and Even Alkyl Chains on Supramolecular Nanoarchitecture via Self-Assembly of Tetraphenylethylene-Based AIEgens. APPLIED SCIENCES-BASEL 2017. [DOI: 10.3390/app7111119] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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24
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Zhou S, Xia Y, Liu Y, He Q, Song B. Aggregation Induced Emission Fluorogens Light Cells via Microtubules: Accessing the Mechanisms of Intracellular Trafficking of Ionic Substances. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:5947-5956. [PMID: 28525956 DOI: 10.1021/acs.langmuir.6b04301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Understanding the enrichment and intracellular trafficking of substances is centrally important to the biological systems. Here, employing an amphiphilic molecule (denoted by TPE-11) bearing tetraphenylethene moiety, known for aggregation induced emission property, we demonstrated its localization shifting in Hela cells after prolonged incubation. Through a set of delicately designed experiments, we found that one type of cytoskeleton, i.e., microtubule, is responsible for the intracellular transportation regardless of the sources of fluorogens, via endocytosis pathways or not. As the polymerization of microtubules was blocked, the TPE-11 fluorogens were hindered to move to the inner cytoplasm, but scattered in the cells. On the contrary, blocking the polymerization of microfilament has no such effect. We assume that the dynamic polymerization of microtubules should be responsible to the transportation of TPE-11. More importantly, we found that the interaction between TPE-11 and microtubule proteins also happens during process of polymerization in vitro. The intracellular trafficking of TPE-11 by microtubules may be generalized to other amphiphilic molecules as well as endocytosis pathway, and serves as references in designing functional molecules involved in the intracellular transportation.
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Affiliation(s)
- Shixin Zhou
- Department of Cell Biology, School of Basic Medical Sciences, Peking University Health Science Center , Beijing 100191, People's Republic of China
| | - Yijun Xia
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, People's Republic of China
| | - Yinan Liu
- Department of Cell Biology, School of Basic Medical Sciences, Peking University Health Science Center , Beijing 100191, People's Republic of China
| | - Qihua He
- Center of Medical and Health Analysis, Peking University Health Science Center , Beijing 100191, People's Republic of China
| | - Bo Song
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University , Suzhou 215123, People's Republic of China
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25
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Fabrication and biological applications of luminescent polyamidoamine dendrimers with aggregation-induced emission feature. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.03.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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26
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Behera SK, Murkherjee A, Sadhuragiri G, Elumalai P, Sathiyendiran M, Kumar M, Mandal BB, Krishnamoorthy G. Aggregation induced enhanced and exclusively highly Stokes shifted emission from an excited state intramolecular proton transfer exhibiting molecule. Faraday Discuss 2017; 196:71-90. [DOI: 10.1039/c6fd00171h] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The inner filter effect due to self-quenching dominates the normal emission of dyes at higher concentrations, which would limit their applications. Since normal emission was also observed with aggregation induced emission enhancement (AIEE) active excited state intramolecular proton transfer (ESIPT) exhibiting molecules, two new molecules are synthesized and studied to obtain normal emission free AIEE. The molecules are 4-(3-(benzo[d]thiazol-2-yl)-5-tert-butyl-4-hydroxybenzyl)-2-(benzo[d]thiazol-2-yl)-6-tert-butyl phenol (bis-HPBT) and its oxazole analogue (bis-HPBO). Of these molecules, bis-HPBT, which is weakly fluorescent in tetrahydrofuran solution, shows a sudden high enhancement in fluorescence upon addition of 70% water due to the formation of aggregates. Though the normal emission is also observed in tetrahydrofuran, it is completely eliminated in the aggregates, and the aggregates display exclusive tautomer emission. However, bis-HPBO does not emit such an exclusive tautomer emission in the water/tetrahydrofuran mixture. The enhancement in the fluorescence quantum yield of bis-HPBT in 70% water is ∼300 times higher than that in tetrahydrofuran. The modulated molecular structure of bis-HPBT is the cause of this outstanding AIEE. The observation of almost exclusive tautomer emission is a new additional advantage of AIEE from bis-HPBT over other ESIPT molecules. Since the tautomer emission is highly Stokes shifted, no overlap with the absorption spectrum occurs and therefore, the inner filter effect is averted. The aggregated structure acts as a good fluorescence chemosensor for metal ions as well as anions. The aggregated structure is cell permeable and can be used for cell imaging.
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Affiliation(s)
- Santosh Kumar Behera
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - Anwesha Murkherjee
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - G. Sadhuragiri
- School of Chemistry
- University of Hyderabad
- Hyderabad
- India
| | | | | | - Manishekhar Kumar
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - Biman B. Mandal
- Department of Biosciences and Bioengineering
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
| | - G. Krishnamoorthy
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati – 781039
- India
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27
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Jagadesan P, Whittemore T, Beirl T, Turro C, McGrier PL. Excited-State Intramolecular Proton-Transfer Properties of Three Tris(N-Salicylideneaniline)-Based Chromophores with Extended Conjugation. Chemistry 2016; 23:917-925. [PMID: 27859715 DOI: 10.1002/chem.201604315] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Indexed: 01/28/2023]
Abstract
The synthesis and photophysical properties of three tris(N-salicylideneaniline) (TSA) compounds containing 1,3,5-triarylbenzene, -tristyrylbenzene, and -tris(arylethynyl)benzene core units are reported. The TSA compounds underwent efficient excited-state intramolecular proton transfer (ESIPT) in solution and in solid state due to the preformed C=N⋅⋅⋅H-O hydrogen-bonded motifs of the structures. Steady-state fluorescence emission spectra of the TSA molecules revealed dual bands only in DMSO, and large Stokes shifts in other polar aprotic and protic solvents. Femtosecond transient absorption spectroscopic measurements in THF revealed lifetime values in the range of 14-16 ps for the excited-state keto-tautomer. The TSA compounds are also responsive to metal ions (Cu2+ and Zn2+ ) in DMSO, exhibit enhanced aggregate-induced emission (AIE) properties in DMSO/water mixtures, and are highly luminescent in the solid state.
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Affiliation(s)
- Pradeepkumar Jagadesan
- Department of Chemistry & Biochemistry, The Ohio State University, 100 W 18th Ave., Columbus, Ohio, 43210, USA
| | - Tyler Whittemore
- Department of Chemistry & Biochemistry, The Ohio State University, 100 W 18th Ave., Columbus, Ohio, 43210, USA
| | - Toni Beirl
- Department of Chemistry & Biochemistry, The Ohio State University, 100 W 18th Ave., Columbus, Ohio, 43210, USA
| | - Claudia Turro
- Department of Chemistry & Biochemistry, The Ohio State University, 100 W 18th Ave., Columbus, Ohio, 43210, USA
| | - Psaras L McGrier
- Department of Chemistry & Biochemistry, The Ohio State University, 100 W 18th Ave., Columbus, Ohio, 43210, USA
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28
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Wen X, Fan Z. Linear Schiff-base fluorescence probe with aggregation-induced emission characteristics for Al3+ detection and its application in live cell imaging. Anal Chim Acta 2016; 945:75-84. [DOI: 10.1016/j.aca.2016.09.036] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 01/28/2023]
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29
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Malakar A, Kumar M, Reddy A, Biswal HT, Mandal BB, Krishnamoorthy G. Aggregation induced enhanced emission of 2-(2'-hydroxyphenyl)benzimidazole. Photochem Photobiol Sci 2016; 15:937-48. [PMID: 27334264 DOI: 10.1039/c6pp00122j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this study, the aggregation induced emission enhancement (AIEE) of 2-(2'-hydroxyphenyl)benzimidazole (HPBI) is reported. To investigate the AIEE process of HPBI, absorption/fluorescence spectroscopy, fluorescence imaging and field emission scanning electron microscopy were employed. A comparative study with 2-phenylbenzimidazole (PBI) divulges the significance of the hydroxyl group in the AIEE process. Further, molecular dynamics simulations have been carried out with explicit solvent molecules to follow the aggregation process of HPBI with time. The obtained molecular dynamics simulation results not only predicted the formation of aggregates but also provided detailed insight and information on the molecular interactions. The cellular studies showed aggregates yield higher fluorescence in the visible region inside HeLa cells in comparison to monomeric compounds which failed to exhibit any visible fluorescence inside the cell. The obtained aggregates were further found to be biocompatible and therefore can be used for bio-imaging applications.
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Affiliation(s)
- Ashim Malakar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Manishekhar Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Anki Reddy
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Himadree T Biswal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
| | - Biman B Mandal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - G Krishnamoorthy
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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30
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Wu J, Song X, Zeng L, Xing J. Synthesis and assembly of polyhedral oligomeric silsesquioxane end-capped amphiphilic polymer to enhance the fluorescent intensity of tetraphenylethene. Colloid Polym Sci 2016. [DOI: 10.1007/s00396-016-3896-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Padalkar VS, Seki S. Excited-state intramolecular proton-transfer (ESIPT)-inspired solid state emitters. Chem Soc Rev 2016; 45:169-202. [PMID: 26506465 DOI: 10.1039/c5cs00543d] [Citation(s) in RCA: 548] [Impact Index Per Article: 68.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Solid state emitters based on excited state intramolecular proton transfer (ESIPT) have been attracting considerable interest since the past few years in the field of optoelectronic devices because of their desirable unique photophysical properties. The photophysical properties of the solid state ESIPT fluorophores determine their possible applicability in functional materials. Less fluorescence quantum efficiencies and short fluorescence lifetime in the solid state are the shortcomings of the existing ESIPT solid state emitters. Designing of ESIPT chromophores with high fluorescence quantum efficiencies and a long fluorescence lifetime in the solid state is a challenging issue because of the unclear mechanism of the solid state emitters in the excited state. Reported design strategies, detailed photophysical properties, and their applications will help in assisting researchers to overcome existing challenges in designing novel solid state ESIPT fluorophores for promising applications. This review highlights recently developed solid state ESIPT emitters with focus on molecular design strategies and their photophysical properties, reported in the last five years.
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Affiliation(s)
- Vikas S Padalkar
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan.
| | - Shu Seki
- Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan.
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32
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Mariani G, Moldenhauer D, Schweins R, Gröhn F. Elucidating Electrostatic Self-Assembly: Molecular Parameters as Key to Thermodynamics and Nanoparticle Shape. J Am Chem Soc 2016; 138:1280-93. [PMID: 26641538 DOI: 10.1021/jacs.5b11497] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The rational design of supramolecular nanoparticles by self-assembly is a crucial field of research due to the wide applications and the possibility of control through external triggers. Understanding the shape-determining factors is the key for tailoring nanoparticles with desired properties. Here, we show how the thermodynamics of the interaction control the shape of the nanoparticle. We highlight the connection between the molecular structure of building blocks, the interaction strength, and the nanoassembly shape. Nanoparticles are prepared by electrostatic self-assembly of cationic polyelectrolyte dendrimers of different generations and oppositely charged multivalent organic dyes relying on the combination of electrostatic and π-π interactions. Different building blocks have been used to vary interaction strength, geometric constraints, and charge ratio, providing insights into the assembly process. The nanoassembly structure has been characterized using atomic force microscopy, static light scattering, small angle neutron scattering, and UV-vis spectroscopy. We show that the isotropy/anisotropy of the nanoassemblies is related to the dye valency. Isothermal titration calorimetry has been used to investigate both dye-dye and dye-dendrimer interaction. The existence of a threshold value in entropy and enthalpy change separating isotropic and anisotropic shapes for both interactions has been demonstrated. The effects of the dye molecular structure on the interaction thermodynamics and therefore on the nanoparticle structure have been revealed using molecular modeling. The polar surface area of the dye molecule takes a key role in the dye self-interaction. This study opens the possibility for a priori shape determination knowing the building blocks structure and their interactions.
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Affiliation(s)
- Giacomo Mariani
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstrasse 3, D-91058 Erlangen, Germany.,Institut Laue-Langevin, DS/LSS , 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Daniel Moldenhauer
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstrasse 3, D-91058 Erlangen, Germany
| | - Ralf Schweins
- Institut Laue-Langevin, DS/LSS , 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Franziska Gröhn
- Department of Chemistry and Pharmacy and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg , Egerlandstrasse 3, D-91058 Erlangen, Germany
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33
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Li H, Zheng X, Su H, Lam JWY, Sing Wong K, Xue S, Huang X, Huang X, Li BS, Tang BZ. Synthesis, optical properties, and helical self-assembly of a bivaline-containing tetraphenylethene. Sci Rep 2016; 6:19277. [PMID: 26758799 PMCID: PMC4725923 DOI: 10.1038/srep19277] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 10/26/2015] [Indexed: 11/25/2022] Open
Abstract
A chiral tetraphenylethene derivative with two valine-containing attachments (TPE-DVAL), was synthesized by Cu(I)-catalyzed azide-alkyne "click" reaction. The optical properties and self-assembling behaviours of TPE-DVAL were investigated. The molecule is non-emissive and circular dichroism (CD)-silent in solution, but shows strong fluorescence and Cotton effects in the aggregation state, demonstrating aggregation-induced emission (AIE) and CD (AICD) characteristics. TPE-DVAL exhibits good circularly polarized luminescence (CPL) when depositing on the surface of quartz to allow the evaporation of its 1,2-dichloroethane solution. SEM and TEM images of the molecule show that the molecule readily self-assembles into right-handed helical nanofibers upon the evaporation of its solvent of DCE. The molecular alignments and interactions in assembling process are further explored through XRD analysis and computational simulation. The driving forces for the formation of the helical fibers were from the cooperative effects of intermolecular hydrogen bonding, π-π interactions and steric effect.
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Affiliation(s)
- Hongkun Li
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, Department of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
- Department of Chemistry, Institute for Advanced Study, Institute of Molecular Functional Materials, and State Key laboratory of Molecular Neuroscience, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu 215123, China
| | - Xiaoyan Zheng
- Department of Chemistry, Institute for Advanced Study, Institute of Molecular Functional Materials, and State Key laboratory of Molecular Neuroscience, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Huimin Su
- Department of Physics, HKUST, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W. Y. Lam
- Department of Chemistry, Institute for Advanced Study, Institute of Molecular Functional Materials, and State Key laboratory of Molecular Neuroscience, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China
| | - Kam Sing Wong
- Department of Physics, HKUST, Clear Water Bay, Kowloon, Hong Kong, China
| | - Shan Xue
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, Department of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xuejiao Huang
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, Department of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xuhui Huang
- Department of Chemistry, Institute for Advanced Study, Institute of Molecular Functional Materials, and State Key laboratory of Molecular Neuroscience, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Bing Shi Li
- Key Laboratory of New Lithium-Ion Battery and Mesoporous Material, Department of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, China
| | - Ben Zhong Tang
- Department of Chemistry, Institute for Advanced Study, Institute of Molecular Functional Materials, and State Key laboratory of Molecular Neuroscience, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong, China
- HKUST-Shenzhen Research Institute, No. 9 Yuexing 1st RD, South Area, Hi-tech Park, Nanshan, Shenzhen 518057, China
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34
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Li M, Song X, Zhang T, Zeng L, Xing J. Aggregation induced emission controlled by a temperature-sensitive organic–inorganic hybrid polymer with a particular LCST. RSC Adv 2016. [DOI: 10.1039/c6ra16244d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The fluorescence intensity change of TPE encapsulated in POSS–PNIPAM with a particular LCST (37.5 °C) with the temperature change.
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Affiliation(s)
- Mengmeng Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Xiaoyan Song
- College of Material Science and Engineering
- Tianjin Polytechnic University
- Tianjin
- China
| | - Tingbin Zhang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
| | - Lintao Zeng
- School of Chemistry and Chemical Engineering
- Tianjin University of Technology
- China
| | - Jinfeng Xing
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin
- China
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35
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A Simple Fluorescence Probe Based on Aggregation-Induced Emission (AIE) Property for the Detection of Mg(2+) Ions. J Fluoresc 2015; 26:53-7. [PMID: 26547420 DOI: 10.1007/s10895-015-1717-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 10/28/2015] [Indexed: 10/22/2022]
Abstract
A simple aggregation-induced emission-based fluorescence probe (1) for Mg(2+) was synthesized by condensation of benzene-1, 2-diamine with 5-bromo-2-hydroxybenzaldehyde, This compound shows favourable character of the AIE-active molecules. More importantly, after addition of Mg(2+) to probe (1) in acetonitrile, the solution changed from colorless to yellow colour solution under ultraviolet (UV) radiation obtained from hand-held UV lamp, this finding suggested that probe (1) can be used to detect Mg(2+) by colorimetric detection. Detection limit can reach 2.31 × 10(-5) M(-1). The practical value of the selective and sensitive fluorescence indicators was confirmed by its application to detection of magnesium ion in acetonitrile.
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36
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Mei J, Leung NLC, Kwok RTK, Lam JWY, Tang BZ. Aggregation-Induced Emission: Together We Shine, United We Soar! Chem Rev 2015; 115:11718-940. [DOI: 10.1021/acs.chemrev.5b00263] [Citation(s) in RCA: 5139] [Impact Index Per Article: 571.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ju Mei
- HKUST-Shenzhen Research Institute, Hi-Tech
Park, Nanshan, Shenzhen 518057, China
- Department of Chemistry,
HKUST Jockey Club Institute for Advanced Study, Institute of Molecular
Functional Materials, Division of Biomedical Engineering, State Key
Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Nelson L. C. Leung
- HKUST-Shenzhen Research Institute, Hi-Tech
Park, Nanshan, Shenzhen 518057, China
- Department of Chemistry,
HKUST Jockey Club Institute for Advanced Study, Institute of Molecular
Functional Materials, Division of Biomedical Engineering, State Key
Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ryan T. K. Kwok
- HKUST-Shenzhen Research Institute, Hi-Tech
Park, Nanshan, Shenzhen 518057, China
- Department of Chemistry,
HKUST Jockey Club Institute for Advanced Study, Institute of Molecular
Functional Materials, Division of Biomedical Engineering, State Key
Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Jacky W. Y. Lam
- HKUST-Shenzhen Research Institute, Hi-Tech
Park, Nanshan, Shenzhen 518057, China
- Department of Chemistry,
HKUST Jockey Club Institute for Advanced Study, Institute of Molecular
Functional Materials, Division of Biomedical Engineering, State Key
Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
| | - Ben Zhong Tang
- HKUST-Shenzhen Research Institute, Hi-Tech
Park, Nanshan, Shenzhen 518057, China
- Department of Chemistry,
HKUST Jockey Club Institute for Advanced Study, Institute of Molecular
Functional Materials, Division of Biomedical Engineering, State Key
Laboratory of Molecular Neuroscience, Division of Life Science, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China
- Guangdong
Innovative Research Team, SCUT-HKUST Joint Research Laboratory, State
Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
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37
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Niu C, You Y, Zhao L, He D, Na N, Ouyang J. Solvatochromism, Reversible Chromism and Self‐Assembly Effects of Heteroatom‐Assisted Aggregation‐Induced Enhanced Emission (AIEE) Compounds. Chemistry 2015; 21:13983-90. [DOI: 10.1002/chem.201501902] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2015] [Indexed: 12/27/2022]
Affiliation(s)
- Caixia Niu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P.R. China)
| | - Ying You
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P.R. China)
| | - Liu Zhao
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P.R. China)
| | - Dacheng He
- Key Laboratory of Cell Proliferation and Regulation Biology, Ministry of Education, Beijing Normal University, Beijing, 100875 (P. R. China)
| | - Na Na
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P.R. China)
| | - Jin Ouyang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P.R. China)
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38
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Niu C, Liu Q, Shang Z, Zhao L, Ouyang J. Dual-emission fluorescent sensor based on AIE organic nanoparticles and Au nanoclusters for the detection of mercury and melamine. NANOSCALE 2015; 7:8457-8465. [PMID: 25891477 DOI: 10.1039/c5nr00554j] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel dual-emission ratiometric fluorescence probe is designed and developed by linking two parts, positively charged aggregation-induced emission (AIE) organic fluorescence nanoparticles (OFNs) as the reference and negatively charged Au nanoclusters (Au NCs) as the response, by electrostatic attraction for the first time. This probe can be used for not only visual but quantitative determination of Hg(2+) as well as melamine, because red fluorescence of Au NCs can be quenched by mercury ions and recovered by melamine, due to the strong affinity metallophilic Hg(2+)-Au interaction and stronger affinity Hg(2+)-N. During this process, the green fluorescence of AIE-OFNs remains constant owing to the protection of ε-polylysine (ε-Ply). In addition, the prepared dual-emission ratiometric fluorescence probe has good biocompatibility, indicating the potential of the probe in applications of biological imaging and detection. The results revealed that this dual-emission ratiometric fluorescence probe broadens the application of AIE-based organic fluorescent nanoparticles, and presents a new method to prepare more sensitive, biocompatible, and visual ratiometric fluorescent probes.
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Affiliation(s)
- Caixia Niu
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China.
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39
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Liu X, Zeng Y, Liu J, Li P, Zhang D, Zhang X, Yu T, Chen J, Yang G, Li Y. Highly Emissive Nanoparticles Based on AIE-Active Molecule and PAMAM Dendritic "Molecular Glue". LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:4386-4393. [PMID: 25828574 DOI: 10.1021/acs.langmuir.5b00155] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The highly emissive nanoparticles Gn-TCMPE (n = 0-4) were prepared by using PAMAM dendrimers as "molecular glue" to adhere an AIE-active molecule tetra(4-(carboxymethoxy)phenyl)ethylene (TCMPE). The electrostatic interaction of ammonium-carboxylate ion pairs provides a driving force between TCMPE and PAMAM dendrimers to form the nanoparticles Gn-TCMPE (n = 0-4), which is validated by the FTIR and (1)H NMR spectra. The formation of nanoparticles dramatically blocks the nonradiative pathway and enhances the fluorescence of TCMPE. The quantum yields of Gn-TCMPE gradually boost at first and then reach to a plateau with increasing the generation of PAMAM dendrimers, and the highest absolute quantum yields are obtained to be 0.42 and 0.64 for Gn-TCMPE (n = 2-4) in methanol dispersion and solid phases, respectively. The fluorescence of the nanoparticles can be tuned by addition of trifluoroacetic acid (TFA). Furthermore, the G4-TCMPE has been successfully applied to selectively image cytoplasm of Hela cells with excellent photostability and low cytotoxicity. This study provides a novel noncovalent strategy for developing highly emissive and robust organic materials fitting for cell fluorescence imaging.
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Affiliation(s)
- Xinyang Liu
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yi Zeng
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jun Liu
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Peng Li
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Dushan Zhang
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Xiaohui Zhang
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Tianjun Yu
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jinping Chen
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Guoqiang Yang
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yi Li
- †Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, and ‡Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
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40
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Zang Y, Li Y, Li B, Li H, Yang Y. Light emission properties and self-assembly of a tolane-based luminogen. RSC Adv 2015. [DOI: 10.1039/c5ra04228c] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Fluorescent micro/nanostructures were formed by self-assembly of a tolane derivative with intramolecular charge transfer and aggregation-induced emission properties.
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Affiliation(s)
- Ying Zang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yi Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Baozong Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Hongkun Li
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yonggang Yang
- Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
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41
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Kundu A, Hariharan PS, Prabakaran K, Moon D, Anthony SP. Stimuli responsive reversible high contrast off–on fluorescence switching of simple aryl-ether amine based aggregation-induced enhanced emission materials. RSC Adv 2015. [DOI: 10.1039/c5ra17570d] [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
Aryl-ether amine based simple Schiff base molecules showed rare stimuli responsive off–on fluorescence switching with high contrast.
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Affiliation(s)
- Anu Kundu
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - P. S. Hariharan
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - K. Prabakaran
- School of Chemical & Biotechnology
- SASTRA University
- Thanjavur-613401
- India
| | - Dohyun Moon
- Beamline Department
- Pohang Accelerator Laboratory
- Pohang
- Korea
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42
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Marin L, van der Lee A, Shova S, Arvinte A, Barboiu M. Molecular amorphous glasses toward large azomethine crystals with aggregation-induced emission. NEW J CHEM 2015. [DOI: 10.1039/c5nj01052g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Imine compounds containing rigid cores and soft aliphatic tails have been designed to generate molecular glasses and large crystals displaying aggregation-induced emission, which makes them interesting candidates for optoelectronic applications.
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Affiliation(s)
- Luminita Marin
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy
- Iasi
- Romania
| | - Arie van der Lee
- Adaptive Supramolecular Nanosystems Group – Institut Europeen des Membranes ENSCM-UMII-CNRS UMR-5635
- Place Eugène Bataillon
- France
| | - Sergiu Shova
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy
- Iasi
- Romania
| | - Adina Arvinte
- “Petru Poni” Institute of Macromolecular Chemistry of Romanian Academy
- Iasi
- Romania
| | - Mihail Barboiu
- Adaptive Supramolecular Nanosystems Group – Institut Europeen des Membranes ENSCM-UMII-CNRS UMR-5635
- Place Eugène Bataillon
- France
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43
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Akiyama H, Inoue T, Tajima N, Kuroda R, Imai Y. Multiple optical properties of a naphthoquinone pigment: 2-methyl-3-(hydroxyphenylthio)-1,4-naphthalenedione. Org Biomol Chem 2014; 12:7965-70. [PMID: 25178051 DOI: 10.1039/c4ob01058b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Naphthoquinone pigments 2-methyl-3-(4- or 2-hydroxyphenylthio)-1,4-naphthalenedione show characteristic optical properties in solution and in the solid state. The position of the OH group in the pigment leads to varied optical properties, including a characteristic colour, in the solid state. The pigment with a 2-OH substituent displays solvatochromism in solution, and that with a 4-OH substituent displays optical chirality in the solid state.
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Affiliation(s)
- Hirotaka Akiyama
- Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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44
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Deng H, Liu B, Yang C, Li G, Zhuang Y, Li B, Zhu X. Multi-color cell imaging under identical excitation conditions with salicylideneaniline analogue-based fluorescent nanoparticles. RSC Adv 2014. [DOI: 10.1039/c4ra10021b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Multi-color cell imaging under identical excitation conditions is realized with fluorescent nanoparticles of salicylideneaniline analogues.
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Affiliation(s)
- Hongping Deng
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240, P. R. China
| | - Bing Liu
- Department of Oral and Maxillofacial Surgery
- The First Affiliated Hospital of Harbin Medical University
- Harbin 150001, P. R. China
| | - Chao Yang
- Key Laboratory of Polar Materials and Devices
- Ministry of Education
- East China Normal University
- Shanghai 200241, P. R. China
| | - Guolin Li
- Department of Oral and Maxillofacial Surgery
- The First Affiliated Hospital of Harbin Medical University
- Harbin 150001, P. R. China
| | - Yuanyuan Zhuang
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240, P. R. China
| | - Bo Li
- Key Laboratory of Polar Materials and Devices
- Ministry of Education
- East China Normal University
- Shanghai 200241, P. R. China
| | - Xinyuan Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai 200240, P. R. China
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