1
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Li Y, Jiang Y, Zhang Q, Zhao Y, Zhang L, Song G, Huang K, Yao Z. Rapid and visual detection of folic acid via supramolecular recognition with a perylene bisimide probe in aqueous media. Talanta 2020; 219:121222. [PMID: 32887123 DOI: 10.1016/j.talanta.2020.121222] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/21/2020] [Accepted: 05/24/2020] [Indexed: 11/30/2022]
Abstract
In this report, we have established a novel approach for the rapid detection of folic acid (FA) with a water soluble perylene bisimide-based probe in 100% aqueous media. The sensing performance and mechanism of this probe were investigated systematically using spectroscopic techniques. After optimizing conditions, the limit of detection in this assay is as low as 29.2 nmol/L and linear operation range is from 0.1 to 1.2 μmol/L. It relies on the supramolecular recognition between the probe and FA under the synergistic effects of non-covalent interactions such as electrostatic, hydrophobic and π-stacking interactions. Monitoring the FA concentrations in real-world samples is also confirmed.
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Affiliation(s)
- Yining Li
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China
| | - Yanping Jiang
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China
| | - Qiaojuan Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China
| | - Yiwen Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China
| | - Li Zhang
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China
| | - Gang Song
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources, Guangzhou University, Guangzhou, 510006, China
| | - Kunlun Huang
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China
| | - Zhiyi Yao
- College of Food Science and Nutritional Engineering, China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety), Ministry of Agriculture, Beijing, 100083, China.
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2
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An Y, Xiao K, Yao Z, Li C. Conjugated Polyelectrolyte Based Colorimetric Array for the Discrimination of Primary Amino Acids. ChemistrySelect 2020. [DOI: 10.1002/slct.202000362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuxiu An
- College of Food Science and Nutritional EngineeringKey Laboratory of Safety Assessment of Genetically Modified OrganismChina Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
- School of Engineering and TechnologyChina University of Geosciences (Beijing) 29 Xueyuan Road, Haidian District Beijing 100083 China
- Department of ChemistryTsinghua University 30 Shuangqing Road, Haidian District Beijing 100084 China
| | - Keren Xiao
- College of Food Science and Nutritional EngineeringKey Laboratory of Safety Assessment of Genetically Modified OrganismChina Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
| | - Zhiyi Yao
- College of Food Science and Nutritional EngineeringKey Laboratory of Safety Assessment of Genetically Modified OrganismChina Agricultural University 17 Tsinghua East Road, Haidian District Beijing 100083 China
- Department of ChemistryTsinghua University 30 Shuangqing Road, Haidian District Beijing 100084 China
| | - Chun Li
- Department of ChemistryTsinghua University 30 Shuangqing Road, Haidian District Beijing 100084 China
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3
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Sun Z, Fan YZ, Du SZ, Yang YZ, Ling Y, Li NB, Luo HQ. Conversion of Fluorescence Signals into Optical Fingerprints Realizing High-Throughput Discrimination of Anionic Sulfonate Surfactants with Similar Structure Based on a Statistical Strategy and Luminescent Metal–Organic Frameworks. Anal Chem 2020; 92:7273-7281. [DOI: 10.1021/acs.analchem.0c00907] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhe Sun
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yu Zhu Fan
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Shi Zhe Du
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yu Zhu Yang
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Yu Ling
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Nian Bing Li
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
| | - Hong Qun Luo
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education), School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
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4
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Zhang L, Li S, Sun Y, Xiao K, Song G, Lu P, Yin S, Huang K, Yao Z. Self-assembly of flavin mononucleotide and a cationic polythiophene in aqueous media: spectroscopic studies and sensing applications. Polym Chem 2020. [DOI: 10.1039/d0py00403k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Self-assembly of flavin mononucleotide and a cationic polythiophene in 100% aqueous media with colorimetric and fluorescence dual responses.
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Affiliation(s)
- Li Zhang
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
| | - Shuanghong Li
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
| | - Yanan Sun
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
| | - Keren Xiao
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
| | - Gang Song
- Guangdong Provincial Key Laboratory of Radionuclides Pollution Control and Resources
- Guangzhou University
- Guangzhou 510006
- P. R. China
| | - Pingan Lu
- College of Health and Environment
- Beijing Union University
- China
| | - Shutao Yin
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
| | - Kunlun Huang
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
| | - Zhiyi Yao
- College of Food Science and Nutritional Engineering
- China Agricultural University and Key Laboratory of Safety Assessment of Genetically Modified Organism (Food Safety)
- Ministry of Agriculture
- Beijing 100083
- China
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5
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Liu L, Zhang Q, Wang J, Zhao L, Liu L, Lu Y. A specific fluorescent probe for fast detection and cellular imaging of cysteine based on a water-soluble conjugated polymer combined with copper(II). Talanta 2019; 198:128-136. [PMID: 30876540 DOI: 10.1016/j.talanta.2019.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 01/19/2019] [Accepted: 02/01/2019] [Indexed: 11/19/2022]
Abstract
In pure water system, the specific and rapid detection of cysteine (Cys) is very important and challenging. Herein, a new optical probe was developed for the purpose based on the complex of cupric ion (Cu2+) with a water-soluble conjugated polymer, poly[3-(3-N,N-diacetateaminopropoxy)-4-methyl thiophene disodium salts] (PTCO2). The fluorescence of PTCO2 in 100% aqueous solution can almost completely extinguished by Cu2+ ions due to its intrinsic paramagnetic properties. Among various amino acids, only Cys causes immediately the efficient recovery of the Cu2+-quenched fluorescence of PTCO2 with ~31-folds fluorescence enhancement because of the stronger affinity of Cys to Cu2+ leading to the formation of Cu2+-Cys complex through Cu-S bond and separation of Cu2+ from weak-fluorescent PTCO2-Cu(II) ensemble and thereby restoring the free PTCO2 fluorescence. In tris-HCl buffer solution (2 mM, pH 7.4), the intensity of the restored fluorescence is linear with the concentration of Cys, ranging from 0 to 120 μM and the estimated detection limit of Cys is 3.3 × 10-7 M with the correlation coefficient R = 0.9981. In addition, the PTCO2-Cu(II) ensemble probe exhibits low cytotoxicity and good membrane penetration, and its application in living cell imaging of Cys has also been explored.
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Affiliation(s)
- Lihua Liu
- School of Materials Science & Engineering, Tianjin Key Laboratory for Photoelectric Materials and Devices, Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China
| | - Qiang Zhang
- School of Materials Science & Engineering, Tianjin Key Laboratory for Photoelectric Materials and Devices, Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China
| | - Jing Wang
- School of Materials Science & Engineering, Tianjin Key Laboratory for Photoelectric Materials and Devices, Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China
| | - Linlin Zhao
- School of Materials Science & Engineering, Tianjin Key Laboratory for Photoelectric Materials and Devices, Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China
| | - Lixia Liu
- School of Materials Science & Engineering, Tianjin Key Laboratory for Photoelectric Materials and Devices, Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China
| | - Yan Lu
- School of Materials Science & Engineering, Tianjin Key Laboratory for Photoelectric Materials and Devices, Key Laboratory of Display Materials & Photoelectric Devices, Ministry of Education, Tianjin University of Technology, Tianjin 300384, China.
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6
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Niu XX, Xu QC, Li AZ, Li YJ, Zhang XT, Zhang Y, Xing GW. A BODIPY-carbazole hybrid as a fluorescent probe: the design, synthesis, and discrimination of surfactants and the determination of the CMC values. Analyst 2019; 144:6866-6870. [DOI: 10.1039/c9an01940e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel fluorescent probe (BDP-Zn2+) was developed to efficiently discriminate four kinds of surfactants and determine the CMC values.
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Affiliation(s)
- Xiao-xiao Niu
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Qin-chao Xu
- The State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan 030001
- China
| | - An-zhen Li
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Yang-jie Li
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Xiao-tai Zhang
- College of Chemistry
- Beijing Normal University
- Beijing
- China
| | - Yuan Zhang
- College of Chemistry
- Beijing Normal University
- Beijing
- China
- Key Laboratory of Energy Conversion and Storage Materials
| | - Guo-wen Xing
- College of Chemistry
- Beijing Normal University
- Beijing
- China
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7
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Ghosh R, Das S, Bhattacharyya K, Chatterjee DP, Biswas A, Nandi AK. Light-Induced Conformational Change of Uracil-Anchored Polythiophene-Regulating Thermo-Responsiveness. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12401-12411. [PMID: 30234308 DOI: 10.1021/acs.langmuir.8b02679] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Tuning the electronic structure of a π-conjugated polymer from the responsive side chains is generally done to get desired optoelectronic properties, and it would be very fruitful when light is used as an exciting tool that can also affect the backbone chain conformation. For this purpose, polythiophene- g-poly-[ N-(6-methyluracilyl)- N, N-dimethylamino chloride]ethyl methacrylate (PTDU) is synthesized. On exposure to diffuse sunlight, the uracil moieties of the grafted chains cause the absorption maximum of PTDU solution to show gradual blue shift of 87 nm and a gradual blue shift of 46 nm in the emission maximum, quenching its fluorescence with time. These effects occur specifically at the absorption range of polythiophene (PT) chromophore on direct exposure of light of different wavelengths, and the optimum wavelength is found to be 420 nm. Impedance study suggests a decrease in charge transfer resistance upon exposure because of conformational change of PTDU. Theoretical study indicates that on exposure to visible light, uracil moieties move toward the backbone to facilitate photoinduced electron transfer between the PT and the uracil, attributing to the variation in optoelectronic properties. Morphological and light-scattering studies exhibit a decrease in particle size because of coiling of the PT backbone and squeezing of the grafted chain on light exposure. The transparent orange-colored PTDU solution becomes hazy with a hike in emission intensity on addition of sodium halides and becomes reversibly transparent or hazy on heating or cooling. The screening of cationic centers of PTDU by varying halide anion concentration tunes the phase transition temperature. Thus, the light-induced variation in the backbone conformation is responsible for tuning the optoelectronic properties and regulates the thermos-responsiveness of the PTDU solution in the presence of halide ions.
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Affiliation(s)
- Radhakanta Ghosh
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur , Kolkata 700 032 , India
| | - Sujoy Das
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur , Kolkata 700 032 , India
| | - Kalishankar Bhattacharyya
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur , Kolkata 700 032 , India
| | - Dhruba P Chatterjee
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur , Kolkata 700 032 , India
| | - Atosi Biswas
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur , Kolkata 700 032 , India
| | - Arun K Nandi
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur , Kolkata 700 032 , India
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8
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Maity N, Ghosh R, Nandi AK. Optoelectronic Properties of Self-Assembled Nanostructures of Polymer Functionalized Polythiophene and Graphene. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7585-7597. [PMID: 29390187 DOI: 10.1021/acs.langmuir.7b04387] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this Feature Article, we discuss the variation of optoelectronic properties with the aggregation style of polythiophene (PT) graft copolymers and polymer-modified graphene systems. Grafting of flexible polymers on a PT chain exhibits several self-organized patterns under various conditions, causing different optical and electronic properties, arising from the different conformational states of the conjugated chain. Graphene, a zero band gap material, is functionalized with polymers both covalently and noncovalently to create a finite band gap importing new optoelectronic properties. The polymer-triggered self-assembled nanostructures of PT and graphene-based materials bring unique optical/electronic properties suitable for sensing toxic ions, nitroaromatics, and surfactants, for drug delivery, and also for fabricating molecular logic gates, electronic rectifiers, photocurrent devices, etc.
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Affiliation(s)
- Nabasmita Maity
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032 , India
| | - Radhakanta Ghosh
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032 , India
| | - Arun K Nandi
- Polymer Science Unit , Indian Association for the Cultivation of Science , Jadavpur, Kolkata - 700 032 , India
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9
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Liu S, Hu C, Huang J, Yan Y. Fluorescent Polyion Complex for the Detection of Sodium Dodecylbenzenesulfonate. Polymers (Basel) 2018; 10:E657. [PMID: 30966691 PMCID: PMC6404151 DOI: 10.3390/polym10060657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Revised: 06/04/2018] [Accepted: 06/08/2018] [Indexed: 12/11/2022] Open
Abstract
Polyion complexes have been known about for decades, with their applications mainly restricted to drug and gene delivery. In this study, we show that by the introduction of fluorescent charged molecules into a polyion complex, it can be used as a specific detection system for surfactants. The fluorescence of 8-hydroxy-1,3,6-pyrenetrisulfonic acid trisodium salt (HPTS) is quenched in the ionic complex, while it can be recovered with the addition of the surfactant sodium dodecylbenzenesulfonate (SDBS), due to the stronger interaction between SDBS and the polyelectrolyte. This leads to a drastic color change of the solution, and a recovery of the strong emission of HPTS. Specifically, the fluorescence is linearly proportional to the concentration of SDBS, thus it can be used for the qualitative detection of SDBS. Furthermore, the detection limit for SDBS can be up to the order of 10-10 M. We believe that competitive dissociation of the ionic complex can be used as a general approach for the construction of new functional materials.
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Affiliation(s)
- Shuai Liu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Cun Hu
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
| | - Jianbin Huang
- Beijing National Laboratory for Molecular Sciences, Institution College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | - Yun Yan
- Beijing National Laboratory for Molecular Sciences, Institution College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
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10
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Cai K, Tan Y, Tan C, Wu J, Wu P, Liang J, Liu S, Zhang B, Jiang Y. An iminodiacetate-modified conjugated polyelectrolyte for fluorescent labeling of histidine-tagged proteins. Chem Commun (Camb) 2017; 53:4191-4194. [DOI: 10.1039/c7cc00850c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iminodiacetate-modified conjugated polyelectrolyte was used in the fluorescent labeling of hexahistidine-tagged proteins.
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Affiliation(s)
- Kai Cai
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Ying Tan
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Chunyan Tan
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Jiatao Wu
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Pan Wu
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Jiamei Liang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Shuwen Liu
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Bibo Zhang
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- P. R. China
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
| | - Yuyang Jiang
- The State Key Laboratory Breeding Base-Shenzhen Key Laboratory of Chemical Biology
- the Graduate School at Shenzhen
- Tsinghua University
- Shenzhen 518055
- P. R. China
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11
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Das S, Routh P, Ghosh R, Chatterjee DP, Nandi AK. Water-soluble ionic polythiophenes for biological and analytical applications. POLYM INT 2016. [DOI: 10.1002/pi.5295] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sandip Das
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Parimal Routh
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Radhakanta Ghosh
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Dhruba P Chatterjee
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
| | - Arun K Nandi
- Polymer Science Unit; Indian Association for the Cultivation of Science; Jadavpur Kolkata - 700032 India
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12
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Ghosh R, Das S, Chatterjee DP, Nandi AK. Surfactant-Triggered Fluorescence Turn "on/off" Behavior of a Polythiophene-graft-Polyampholyte. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:8413-8423. [PMID: 27465928 DOI: 10.1021/acs.langmuir.6b01928] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Polythiophene-graft-polyampholyte (PTP) is synthesized using N,N-dimethylaminoethyl methacrylate and tert-butyl methacrylate monomers by grafting from polythiophene backbone, followed by hydrolysis. The resulting polymer exhibits aqueous solubility via formation of small-sized miceller aggregates with hydrophobic polythiophene at the center and radiating polyionic side chains (cationic or anionic depending on the pH of the medium) at the outer periphery. The critical micelle concentration of PTP in acidic solution (0.025 mg/mL, pH = 2.7) is determined from fluorescence spectroscopy. PTP exhibits reversible fluorescence on and off response in both acidic and basic medium with the sequential addition of differently charged ionic surfactants, repeatedly. The fluorescence intensity of PTP at pH 2.7 increases with the addition of an anionic surfactant, sodium dodecyl benzenesulfonate (SDBS), due to the self-aggregation forming compound micelles. The fluorescence intensity of these solutions again decreases on addition of a cationic surfactant, cetyltrimethylammonium bromide (CTAB), because of assembling of SDBS with CTAB, thus deassembling the PTP-SDBS aggregates. At pH 9.2, these turn on and turn off responses are also shown by PTP with the sequential addition of cationic surfactant (CTAB) and anionic surfactant (SDBS), respectively. This result shows that PTP has potential for surfactant-induced reversible fluorescence turn on and off using ionic surfactant (SDBS and CTAB) through self-assembling and deassembling of the ionic aggregates. The reversible aggregation and disaggregation process of PTP with the surfactants at both acidic and basic pH is supported from dynamic light scattering and Fourier transform infrared spectroscopy. The morphology of the above systems studied by transmission and scanning electron microscopy also supports the above aggregation and disaggregation process.
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Affiliation(s)
- Radhakanta Ghosh
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | - Sandip Das
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
| | | | - Arun K Nandi
- Polymer Science Unit, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700 032, India
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13
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Li B, Li W, Xu Y, Li J, Tu J, Sun S. A simple approach for the discrimination of surfactants based on the control of squaraine aggregation. Chem Commun (Camb) 2016; 51:14652-5. [PMID: 26291579 DOI: 10.1039/c5cc06086a] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The color of squaraine solution shows a "fingerprint" change upon addition of different surfactants. A cross-responsive sensing array based on a small molecular probe was applied to discriminate surfactants with 100% confidence limits. Furthermore, the probe can selectively detect sodium dodecyl sulfate (SDS) with turn-on fluorescence response.
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Affiliation(s)
- Benhao Li
- College of Science, Northwest A & F University, Yangling, Shaanxi 712100, P. R. China.
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14
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Yao Z, Hu X, Huang B, Zhang L, Liu L, Zhao Y, Wu HC. Halochromism of a polythiophene derivative induced by conformational changes and its sensing application of carbon dioxide. ACS APPLIED MATERIALS & INTERFACES 2013; 5:5783-5787. [PMID: 23705818 DOI: 10.1021/am401761n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We report the design and synthesis of a halochromic polythiophene derivative, whose conformation can be alternated between random coil and rodlike phase by adjusting the pH of the solution. Distinct solution color changes associated with the pH-induced conformational transitions can be used to construct a colorimetric probe for sensing carbon dioxide. This probe can be recovered by bubbling nitrogen gas into carbon dioxide-treated solutions for over 20 cycles.
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Affiliation(s)
- Zhiyi Yao
- Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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15
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Li C, Shi G. Polythiophene-based optical sensors for small molecules. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4503-4510. [PMID: 23429878 DOI: 10.1021/am400009d] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Water-soluble, regioregular polythiophene (PT) derivatives are conformational sensitive to external stimuli, and their spectral responses are determined by conformation changes, π-π interactions and scattering of visible lights originated from PT aggregates. In this paper, we review the synthesis of water-soluble PTs and their photophysical properties, and then highlight our efforts toward the development of PT-based optical sensors for small molecules. Mechanism studies indicate that the interplay between side-chain steric/electrostatic repulsive and interchain attractive interactions is responsible for the assembly and disassembly of water-soluble PTs in aqueous media. Consequently, the planarization/deplanarization of PT backbones provides the possibility for colorimetric and fluorescent dual detection of small bioanalytes and chemical species.
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Affiliation(s)
- Chun Li
- Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China.
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Yao Z, Yang Y, Chen X, Hu X, Zhang L, Liu L, Zhao Y, Wu HC. Visual Detection of Copper(II) Ions Based on an Anionic Polythiophene Derivative Using Click Chemistry. Anal Chem 2013; 85:5650-3. [DOI: 10.1021/ac401386v] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zhiyi Yao
- Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yanbo Yang
- Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xueliang Chen
- School of
Materials Science
and Engineering, Zhengzhou University,
Zhengzhou 450052, China
| | - Xianping Hu
- School of
Materials Science
and Engineering, Zhengzhou University,
Zhengzhou 450052, China
| | - Li Zhang
- School of
Materials Science
and Engineering, Zhengzhou University,
Zhengzhou 450052, China
| | - Lei Liu
- Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Yuliang Zhao
- Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Hai-Chen Wu
- Key Laboratory for Biomedical Effects of Nanomaterials & Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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Yao Z, Ma W, Yang Y, Chen X, Zhang L, Lin C, Wu HC. Colorimetric and fluorescent detection of protamines with an anionic polythiophene derivative. Org Biomol Chem 2013; 11:6466-9. [DOI: 10.1039/c3ob41407h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Yao Z, Hu X, Ma W, Chen X, Zhang L, Yu J, Zhao Y, Wu HC. Colorimetric and fluorescent dual detection of paraquat and diquat based on an anionic polythiophene derivative. Analyst 2013; 138:5572-5. [DOI: 10.1039/c3an01205k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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20
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Heeley MEH, Gallaher JK, Nguyen TL, Woo HY, Hodgkiss JM. Surfactant controlled aggregation of conjugated polyelectrolytes. Chem Commun (Camb) 2013; 49:4235-7. [DOI: 10.1039/c2cc37447a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Evans RC, Knaapila M, Willis-Fox N, Kraft M, Terry A, Burrows HD, Scherf U. Cationic polythiophene-surfactant self-assembly complexes: phase transitions, optical response, and sensing. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:12348-12356. [PMID: 22839776 DOI: 10.1021/la302166a] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The absorption and photoluminescence spectra of the cationic conjugated polyelectrolyte poly[3-(6-trimethylammoniumhexyl)thiophene] (P3TMAHT) were observed to be dramatically altered in the presence of anionic surfactants due to self-assembly through ionic complex formation. Small-angle neutron scattering (SANS), UV/vis, and photoluminescence spectroscopy were used to probe the relationship between the supramolecular complex organization and the photophysical response of P3TMAHT in the presence of industrially important anionic surfactants. Subtle differences in the surfactant mole fraction and chemical structure (e.g., chain length, headgroup charge density, perfluorination) result in marked variations in the range and type of complexes formed, which can be directly correlated to a unique colorimetric and fluorimetric fingerprint. Our results show that P3TMAHT has potential as an optical sensor for anionic surfactants capable of selectively identifying distinct structural subgroups through dual mode detection.
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Affiliation(s)
- Rachel C Evans
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland.
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Li E, Lin L, Wang L, Pei M, Xu J, Zhang G. Synthesis of a New Cationic Polythiophene Derivative and Its Application for Colorimetric and Fluorometric Detection of Iodide Ion and Anionic Surfactants in Water. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201200100] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Wang L, Feng Q, Wang X, Pei M, Zhang G. A novel polythiophene derivative as a sensitive colorimetric and fluorescent sensor for anionic surfactants in water. NEW J CHEM 2012. [DOI: 10.1039/c2nj40460e] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Li Y, Bai H, Li C, Shi G. Colorimetric assays for acetylcholinesterase activity and inhibitor screening based on the disassembly-assembly of a water-soluble polythiophene derivative. ACS APPLIED MATERIALS & INTERFACES 2011; 3:1306-1310. [PMID: 21438627 DOI: 10.1021/am200101n] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A complex between an anionic polythiophene derivative (PT-COO(-)) and a cationic surfactant, myristoylcholine, has been prepared and applied to be colorimetric probe for acetylcholinesterase (AChE) assays. The complex formation process, AChE activity assay and inhibitor screening has been studied by absorption spectroscopy. It was confirmed that the introduction of myristoylcholine into PT-COO(-) phosphate buffer solution resulted in the disassembly of PT-COO(-) aggregates, and further addition of AChE into the above solution led to the reassembly of PT-COO(-) due to the catalyzed hydrolysis of myristoylcholine and the collapse of the complex. The colorimetric assay for AChE can be readily realized with the concentration of AChE as low as 0.2 U/mL. The results also demonstrate that the colorimetric approach can be applied for screening inhibitors of AChE.
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Affiliation(s)
- Yugang Li
- Department of Chemistry, Tsinghua University, Beijing 100084, China
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Lee KM, Moon JH, Jeon H, Chen X, Kim HJ, Kim S, Kim SJ, Lee JY, Yoon J. Diverse colorimetric changes of polydiacetylenes with cationic surfactants and their mechanistic studies. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12818c] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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