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Li XC, Yuan QL, Zhang F, Zhang HZ. Investigation of intrachain exciton diffusion of MEH-PPV in solution with different polarity. CHINESE J CHEM PHYS 2019. [DOI: 10.1063/1674-0068/cjcp1806134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Xue-cong Li
- Department of Physics, Tianjin Polytechnic University, TianJin 300387, China
| | - Qi-lin Yuan
- Femtosecond laser laboratory, College of Physics, Jilin University, Changchun 130012, China
| | - Fang Zhang
- Department of Physics, Tianjin Polytechnic University, TianJin 300387, China
| | - Han-zhuang Zhang
- Femtosecond laser laboratory, College of Physics, Jilin University, Changchun 130012, China
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52
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Đorđević L, Marangoni T, Liu M, De Zorzi R, Geremia S, Minoia A, Lazzaroni R, Ishida Y, Bonifazi D. Templating Porphyrin Anisotropy via Magnetically Aligned Carbon Nanotubes. Chempluschem 2019; 84:1270-1278. [DOI: 10.1002/cplu.201800623] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Luka Đorđević
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Tomas Marangoni
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Mingjie Liu
- RIKEN Center for Emergent Matter Science 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Rita De Zorzi
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Silvano Geremia
- Department of Chemical and Pharmaceutical SciencesUniversity of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Andrea Minoia
- Laboratory for Chemistry of Novel Materials, CIRMAPUniversité de Mons-UMONS Place du Parc 20 B-7000 Mons Belgium
| | - Roberto Lazzaroni
- Laboratory for Chemistry of Novel Materials, CIRMAPUniversité de Mons-UMONS Place du Parc 20 B-7000 Mons Belgium
| | - Yasuhiro Ishida
- RIKEN Center for Emergent Matter Science 2-1 Hirosawa, Wako Saitama 351-0198 Japan
| | - Davide Bonifazi
- School of ChemistryCardiff University Park Place Main Building CF10 3AT United Kingdom
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53
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Whitten DG, Tang Y, Zhou Z, Yang J, Wang Y, Hill EH, Pappas HC, Donabedian PL, Chi EY. A Retrospective: 10 Years of Oligo(phenylene-ethynylene) Electrolytes: Demystifying Nanomaterials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:307-325. [PMID: 30056722 DOI: 10.1021/acs.langmuir.8b01810] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this retrospective, we first reviewed the synthesis of the oligo(phenylene-ethynylene) electrolytes (OPEs) we created in the past 10 years. Since the general antimicrobial activity of these OPEs had been reported in our previous account in Langmuir, we are focusing only on the unusual spectroscopic and photophysical properties of these OPEs and their complexes with anionic scaffolds and detergents in this Feature Article. We applied classical all-atom MD simulations to study the hydrogen bonding environment in the water surrounding the OPEs with and without detergents present. Our finding is that OPEs could form a unit cluster or unit aggregate with a few oppositely charged detergent molecules, indicating that the photostability and photoreactivity of these OPEs might be considerably altered with important consequences to their activity as antimicrobials and fluorescence-based sensors. Thus, in the following sections, we showed that OPE complexes with detergents exhibit enhanced light-activated biocidal activity compared to either OPE or detergent individually. We also found that similar complexes between certain OPEs and biolipids could be used to construct sensors for the enzyme activity. Finally, the OPEs could covalently bind to microsphere surfaces to make a bactericidal surface, which is simpler and more ordered than the surface grafted from microspheres with polyelectrolytes. In the Conclusions and Prospects section, we briefly summarize the properties of OPEs developed so far and future areas for investigation.
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Affiliation(s)
- David G Whitten
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Yanli Tang
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Zhijun Zhou
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Jianzhong Yang
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Ying Wang
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Eric H Hill
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Harry C Pappas
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Patrick L Donabedian
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
| | - Eva Y Chi
- Department of Chemical and Biological Engineering , University of New Mexico , Albuquerque , New Mexico 87131 , United States
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54
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Liu J, Yang T, Hu Z, Feng G. The development of unimolecular conjugated polymeric micelles for the highly selective detection and recovery of gold from electronic waste. NEW J CHEM 2019. [DOI: 10.1039/c9nj02077b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold recycling is a sustainable development strategy that will save a large amount of carbon dioxide emissions. In this work, we have developed a conjugated polymer, that can not only detect Au content in e-waste but also extract Au from e-waste.
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Affiliation(s)
- Jilin Liu
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Ting Yang
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Zhiru Hu
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- China
| | - Guodong Feng
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun 130012
- China
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55
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Wang CH, Nesterov EE. Amplifying fluorescent conjugated polymer sensor for singlet oxygen detection. Chem Commun (Camb) 2019; 55:8955-8958. [DOI: 10.1039/c9cc04123k] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A “higher energy gap” concept was used to design an efficient conjugated polymer turn-on amplifying fluorescent sensor for singlet oxygen.
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Affiliation(s)
- Chun-Han Wang
- Department of Chemistry
- Louisiana State University
- Baton Rouge
- USA
| | - Evgueni E. Nesterov
- Department of Chemistry
- Louisiana State University
- Baton Rouge
- USA
- Department of Chemistry and Biochemistry
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56
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Beto CC, Yang Y, Zeman CJ, Ghiviriga I, Schanze KS, Veige AS. Cu-Catalyzed Azide-Pt-Acetylide Cycloaddition: Progress toward a Conjugated Metallopolymer via iClick. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00737] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Christopher C. Beto
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Yajing Yang
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Charles J. Zeman
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Ion Ghiviriga
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Kirk S. Schanze
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
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57
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Tang SJ, Liu Z, Qian YJ, Shi K, Sun Y, Wu C, Gong Q, Xiao YF. A Tunable Optofluidic Microlaser in a Photostable Conjugated Polymer. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1804556. [PMID: 30311273 DOI: 10.1002/adma.201804556] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 09/02/2018] [Indexed: 05/11/2023]
Abstract
The optofluidic laser has become an important platform for biological sensing and medical diagnosis. To date, fluorescent dyes and proteins have been widely utilized as gain materials for biological analysis due to their good biocompatibility, but the limited photostability restricts their reliability and sensitivity. Here, an optofluidic microlaser with an ultralow threshold down to 7.8 µJ cm-2 in the ultrahigh-Q whispering-gallery microcavity, which is filled with a biocompatible conjugated polymer, is demonstrated. This conjugated polymer exhibits a significant enhancement in the lasing stability compared with a typical laser dye (Nile red). In the experiment, after 20 min of illumination with the excitation intensity of 23.2 MW cm-2 , the lasing intensity of the conjugated polymer experiences a decrease of less than 10%, while the lasing feature of Nile red completely disappears. Additionally, by mechanically stretching the resonator, the lasing frequency can be fine-tuned with the range of about 2 nm, exceeding the free spectral range of the resonator.
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Affiliation(s)
- Shui-Jing Tang
- State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Shanxi, Taiyuan, 030006, P. R. China
| | - Zhihe Liu
- State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, P. R. China
| | - Yan-Jun Qian
- State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
| | - Kebin Shi
- State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
| | - Yujie Sun
- School of Life Sciences, Peking University, Beijing, 100871, P. R. China
| | - Changfeng Wu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, 518055, P. R. China
| | - Qihuang Gong
- State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Shanxi, Taiyuan, 030006, P. R. China
| | - Yun-Feng Xiao
- State Key Laboratory for Mesoscopic Physics and School of Physics, Peking University, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100871, P. R. China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Shanxi, Taiyuan, 030006, P. R. China
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58
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Melnychuk N, Klymchenko AS. DNA-Functionalized Dye-Loaded Polymeric Nanoparticles: Ultrabright FRET Platform for Amplified Detection of Nucleic Acids. J Am Chem Soc 2018; 140:10856-10865. [PMID: 30067022 DOI: 10.1021/jacs.8b05840] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Going beyond the limits of optical biosensing motivates exploration of signal amplification strategies that convert a single molecular recognition event into a response equivalent to hundreds of fluorescent dyes. In this respect, Førster Resonance Energy Transfer (FRET) with bright fluorescent nanoparticles (NPs) is an attractive direction, but it is limited by poor efficiency of NPs as FRET donors, because their size is typically much larger than the Førster radius (∼5 nm). Here, we established FRET-based nanoparticle probes that overcome this fundamental limitation by exploiting a phenomenon of giant light harvesting with thousands of strongly coupled dyes in a polymer matrix. These nanoprobes are based on 40 nm dye-loaded poly(methyl methacrylate- co-methacrylic acid) (PMMA-MA) NPs, so-called light-harvesting nanoantennas, which are functionalized at their surface with oligonucleotides. To achieve this functionalization, we developed an original methodology: PMMA-MA was modified with azide/carboxylate bifunctional group that enabled assembly of small polymeric NPs and their further Cu-free click coupling with oligonucleotides. The obtained functionalized nanoantenna behaves as giant energy donor, where hybridization of target nucleic acid (encoding survivin cancer marker) with ∼23 grafted oligonucleotides/Cy5-acceptors switches on/off FRET from ∼3200 rhodamine-donors of the nanoantenna, leading to 75-fold signal amplification. In solution and on surfaces at single-particle level, the nanoprobe provides sequence-specific two-color ratiometric response to nucleic acids with limit of detection reaching 0.25 pM. It displays unprecedented brightness for a FRET biosensor: it outperforms analogous FRET-based molecular probe by >2000-fold and QDot-605 by ∼100-fold. The developed concept of amplified sensing will increase orders of magnitude sensitivity of fluorescent probes for biomolecular targets.
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Affiliation(s)
- Nina Melnychuk
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Faculté de Pharmacie , Université de Strasbourg , Strasbourg CS 60024 , France
| | - Andrey S Klymchenko
- Laboratoire de Bioimagerie et Pathologies, UMR 7021 CNRS, Faculté de Pharmacie , Université de Strasbourg , Strasbourg CS 60024 , France
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59
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Zhou S, Zhu J, Li Y, Feng L. A high brightness probe of polymer nanoparticles for biological imaging. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 192:228-235. [PMID: 29149694 DOI: 10.1016/j.saa.2017.11.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 11/03/2017] [Accepted: 11/09/2017] [Indexed: 06/07/2023]
Abstract
Conjugated polymer nanoparticles (CPNs) with high brightness in long wavelength region were prepared by the nano-precipitation method. Based on fluorescence resonance energy transfer (FRET) mechanism, the high brightness property of the CPNs was realized by four different emission polymers. Dynamic light scattering (DLS) and scanning electron microscopy (SEM) displayed that the CPNs possessed a spherical structure and an average diameter of ~75nm. Analysis assays showed that the CPNs had excellent biocompatibility, good photostability and low cytotoxicity. The CPNs were bio-modified with a cell penetrating peptide (Tat, a targeted element) through covalent link. Based on the entire wave fluorescence emission, the functionalized CPNs1-4 can meet multichannel and high throughput assays in cell and organ imaging. The contribution of the work lies in not only providing a new way to obtain a high brightness imaging probe in long wavelength region, but also using targeted cell and organ imaging.
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Affiliation(s)
- Sirong Zhou
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Jiarong Zhu
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China
| | - Yaping Li
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
| | - Liheng Feng
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
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60
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Effects of Charge Density on Photophysics and Aggregation Behavior of Anionic Fluorene-Arylene Conjugated Polyelectrolytes. Polymers (Basel) 2018; 10:polym10030258. [PMID: 30966293 PMCID: PMC6414976 DOI: 10.3390/polym10030258] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 02/23/2018] [Accepted: 02/26/2018] [Indexed: 01/19/2023] Open
Abstract
Three anionic fluorene-based alternating conjugated polyelectrolytes (CPEs) have been synthesized that have 9,9-bis(4-phenoxy-butylsulfonate) fluorene-2,7-diyl and 1,4-phenylene (PBS-PFP), 4,4′-biphenylene (PBS-PFP2), or 4,4″-p-terphenylene (PBS-PFP3) groups, and the effect of the length of the oligophenylene spacer on their aggregation and photophysics has been studied. All form metastable dispersions in water, but can be solubilized using methanol, acetonitrile, or dioxane as cosolvents. This leads to increases in their emission intensities and blue shifts in fluorescence maxima due to break-up of aggregates. In addition, the emission maximum shifts to the blue and the loss of vibronic structure are observed when the number of phenylene rings is increased. Debsity Functional Theory (DFT) calculations suggest that this is due to increasing conformational flexibility as the number of phenylene rings increases. This is supported by increasing amplitude in the fast component in the fluorescence decay. The nonionic surfactant n-dodecylpentaoxyethylene glycol ether (C12E5) also breaks up aggregates, as seen by changes in fluorescence intensity and maximum. However, the loss in vibrational structure is less pronounced in this case, possibly due to a more rigid environment in the mixed surfactant-CPE aggregates. Further information on the aggregates formed with C12E5 was obtained by electrical conductivity measurements, which showed an initial increase in specific conductivity upon addition of surfactants, while at higher surfactant/CPE molar ratios a plateau was observed. The specific conductance in the plateau region decreased in the order PBS-PFP3 < PBS-PFP2 < PBS-PFP, in agreement with the change in charge density on the CPE. The reverse process of aggregate formation has been studied by injecting small volumes of solutions of CPEs dissolved at the molecular level in a good solvent system (50% methanol-water) into the poor solvent, water. Aggregation was monitored by changes in both fluorescence and light scattering. The rate of aggregation increases with hydrophobicity and concentration of sodium chloride but is only weakly dependent on temperature.
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61
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Hladysh S, Murmiliuk A, Vohlídal J, Havlíček D, Sedlařík V, Štěpánek M, Zedník J. Combination of phosphonium and ammonium pendant groups in cationic conjugated polyelectrolytes based on regioregular poly(3-hexylthiophene) polymer chains. Eur Polym J 2018. [DOI: 10.1016/j.eurpolymj.2018.01.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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62
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Shaw PE, Burn PL. Real-time fluorescence quenching-based detection of nitro-containing explosive vapours: what are the key processes? Phys Chem Chem Phys 2018; 19:29714-29730. [PMID: 28850131 DOI: 10.1039/c7cp04602b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The detection of explosives continues to be a pressing global challenge with many potential technologies being pursued by the scientific research community. Luminescence-based detection of explosive vapours with an organic semiconductor has attracted much interest because of its potential for detectors that have high sensitivity, compact form factor, simple operation and low-cost. Despite the abundance of literature on novel sensor materials systems there are relatively few mechanistic studies targeted towards vapour-based sensing. In this Perspective, we will review the progress that has been made in understanding the processes that control the real-time luminescence quenching of thin films by analyte vapours. These are the non-radiative quenching process by which the sensor exciton decays, the analyte-sensor intermolecular binding interaction, and the diffusion process for the analyte vapours in the film. We comment on the contributions of each of these processes towards the sensing response and, in particular, the relative roles of analyte diffusion and exciton diffusion. While the latter has been historically judged to be one of, if not the primary, causes for the high sensitivity of many conjugated polymers to nitrated vapours, recent evidence suggests that long exciton diffusion lengths are unnecessary. The implications of these results on the development of sensor materials for real-time detection are discussed.
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Affiliation(s)
- P E Shaw
- Centre for Organic Photonics & Electronics, School of Chemistry & Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia.
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63
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Zhang X, Xu NY, Ruan Q, Lu DQ, Yang YH, Hu R. A label-free and sensitive photoluminescence sensing platform based on long persistent luminescence nanoparticles for the determination of antibiotics and 2,4,6-trinitrophenol. RSC Adv 2018; 8:5714-5720. [PMID: 35539626 PMCID: PMC9082105 DOI: 10.1039/c7ra12222e] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Accepted: 01/16/2018] [Indexed: 11/29/2022] Open
Abstract
The rapid detection of pollutants with high sensitivity and selectivity is of considerable significance for security screening, environmental safety, and human health. In this study, we prepared persistent luminescence nanoparticles (PLNPs) and constructed a label-free sensor for sensitive and selective detection of pollutants in real samples and test papers. Following excitation, PLNPs could store absorbed light energy and release it in the form of luminescence. Compared with a fluorescence-based technique, a PLNPs-based measurement could effectively avoid background interference. Under optimal conditions, the limit of detection for TNP was found to be 10 nM, while for an antibiotic it was 5 nM. The nanoprobe was successfully applied for the detection of pollutants in real samples including milk and Dianchi Lake water samples. Due to the long-lasting afterglow nature of PLNPs, the signal-to-noise ratio could be greatly increased in complex real samples. By hand-writing with TNP solution as ink on filter paper, the photoluminescence (PL) of the part stained with TNP was immediately quenched. Moreover, after direct exposure under a UV lamp for 10 min and without further excitation, the luminescence of the test paper was investigated to avoid interferents. This PLNP material could be potentially employed as a multi-responsive luminescent sensor. In addition, these easy-to-use visual techniques could provide a powerful tool for a convenient POC assay of organic pollutants.
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Affiliation(s)
- Xi Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 Yunnan P. R. China +86-871-65941087
| | - Na-Yan Xu
- College of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 Yunnan P. R. China +86-871-65941087
| | - Qiong Ruan
- College of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 Yunnan P. R. China +86-871-65941087
| | - Dan-Qing Lu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theronastics, Hunan University Changsha 410082 China
| | - Yun-Hui Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 Yunnan P. R. China +86-871-65941087
| | - Rong Hu
- College of Chemistry and Chemical Engineering, Yunnan Normal University Kunming 650092 Yunnan P. R. China +86-871-65941087
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64
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Schmidt MM, ElMahmoudy M, Malliaras GG, Inal S, Thelakkat M. Smaller Counter Cation for Higher Transconductance in Anionic Conjugated Polyelectrolytes. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700374] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Martina M. Schmidt
- Applied Functional Polymers; University of Bayreuth; Bayreuth 95440 Germany
| | - Mohammed ElMahmoudy
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC; Gardanne 13541 France
| | - George G. Malliaras
- Department of Bioelectronics; Ecole Nationale Supérieure des Mines; CMP-EMSE; MOC; Gardanne 13541 France
| | - Sahika Inal
- Biological and Environmental Science and Engineering; King Abdullah University of Science and Technology (KAUST); Thuwal 23955-6900 Kingdom of Saudi Arabia
| | - Mukundan Thelakkat
- Applied Functional Polymers; University of Bayreuth; Bayreuth 95440 Germany
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65
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Jana B, Ghosh A, Patra A. Photon Harvesting in Conjugated Polymer-Based Functional Nanoparticles. J Phys Chem Lett 2017; 8:4608-4620. [PMID: 28853893 DOI: 10.1021/acs.jpclett.7b01936] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The design of new generation light-harvesting systems based on conjugated polymer nanoparticles (PNPs) is an emerging field of research to convert solar energy into renewable energy. In this Perspective, we focus on the understanding of the light harvesting processes like exciton dynamics, energy transfer, antenna effect, charge carrier dynamics, and other related processes of conjugated polymer-based functional nanomaterials. Spectroscopic investigations unveil the rotational dynamics of the dye molecules inside of PNPs and exciton dynamics of the self-assembled structures. A detailed understanding of the cascade energy transfer for white light and singlet oxygen generation in multiple fluorophores containing a PNP system by time-resolved spectroscopy is highlighted. Finally, ultrafast spectroscopic investigations provide direct insight into the impacts of electron and hole transfer at the interface in the hybrid materials for photocatalysis and photocurrent generation to construct efficient light-harvesting systems.
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Affiliation(s)
- Bikash Jana
- Department of Materials Science, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - Arnab Ghosh
- Department of Materials Science, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
| | - Amitava Patra
- Department of Materials Science, Indian Association for the Cultivation of Science , Jadavpur, Kolkata 700032, India
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66
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Chiang CH, Pangeni D, Nesterov EE. Higher Energy Gap Control of Fluorescence in Conjugated Polymers: Turn-On Amplifying Chemosensor for Hydrogen Sulfide. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01706] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Chien-Hung Chiang
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Deepa Pangeni
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Evgueni E. Nesterov
- Department of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
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67
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Sk B, Thakre PK, Tomar RS, Patra A. A Pyridoindole-Based Multifunctional Bioprobe: pH-Induced Fluorescence Switching and Specific Targeting of Lipid Droplets. Chem Asian J 2017; 12:2501-2509. [PMID: 28719098 DOI: 10.1002/asia.201700898] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 07/14/2017] [Indexed: 01/18/2023]
Abstract
A versatile fluorescent probe, PITE, based on alkyl-substituted pyridoindole (PI) and tetraphenylethylene (TE), which exhibits facile pH-induced fluorescence switching in solution, as nanoparticles, and in the solid state, is presented. Strong fluorescence in the solid state, as well as in solution and the aggregated state, allow sensing of toxic acid vapors. Fluorescence "off-on" switching of PITE through exposure to trifluoroacetic acid and triethylamine vapor is visualized by the naked eye. A unified picture of the switchable fluorescence of PITE is obtained by comprehensive spectroscopic investigations coupled with quantum mechanical calculations. Strong fluorescence, a large Stokes shift, high photostability, and biocompatibility of PITE make it a viable probe for subcellular imaging. Extensive fluorescence microscopic studies by employing organisms including lower and higher eukaryotes reveal specific localization of PITE to lipid droplets (LDs). LDs are dynamic subcellular organelles linked to various physiological processes and human diseases. Hence, the specific detection of LDs in diverse organisms is important to biomedical research and healthcare. Isolation of LDs and subsequent colocalization studies ascertain selective targeting of LDs by the easily affordable, lipophilic bioprobe, PITE. Thus, PITE is a promising multifunctional probe for chemosensing and the selective tracking of LDs.
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Affiliation(s)
- Bahadur Sk
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore Bypass Road, Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Pilendra Kumar Thakre
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Indore Bypass Road, Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Raghuvir Singh Tomar
- Department of Biological Sciences, Indian Institute of Science Education and Research Bhopal, Indore Bypass Road, Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Abhijit Patra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Indore Bypass Road, Bhauri, Bhopal, 462066, Madhya Pradesh, India
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Zessin J, Fischer F, Heerwig A, Kick A, Boye S, Stamm M, Kiriy A, Mertig M. Tunable Fluorescence of a Semiconducting Polythiophene Positioned on DNA Origami. NANO LETTERS 2017; 17:5163-5170. [PMID: 28745060 DOI: 10.1021/acs.nanolett.7b02623] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A novel approach for the integration of π-conjugated polymers (CPs) into DNA-based nanostructures is presented. Using the controlled Kumada catalyst-transfer polycondensation, well-defined thiophene-based polymers with controllable molecular weight, specific end groups, and water-soluble oligoethylene glycol-based side chains were synthesized. The end groups were used for the easy but highly efficient click chemistry-based attachment of end-functionalized oligodeoxynucleotides (ODNs) with predesigned sequences. As demonstrated by surface plasmon resonance spectroscopy, the prepared block copolymers (BCPs), P3(EO)3T-b-ODN, comprising different ODN lengths and specific or repetitive sequences, undergo specific hybridization with complementary, thiol-functionalized ODNs immobilized on a gold surface. Furthermore, the site-specific attachment of the BCPs to DNA origami structures is studied. We demonstrate that a nanoscale object, that is, a single BCP with a single ODN handle, can be directed and bound to the DNA origami with reasonable yield, site-specificity, and high spatial density. On the basis of these results, we are able to demonstrate for the first time that optical properties of CP molecules densely immobilized on DNA origami can be locally fine-tuned by controlling the attractive π-π-stacking interactions between the CPs. In particular, we show that the fluorescence of the immobilized CP molecules can be significantly enhanced by surfactant-induced breakup of π-π-stacking interactions between the CP's backbones. Such molecular control over the emission intensity of the CPs can be valuable for the construction of sophisticated switchable nanophotonic devices and nanoscale biosensors.
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Affiliation(s)
- Johanna Zessin
- Leibniz-Institut für Polymerforschung Dresden e.V. , 01069 Dresden, Germany
- Physikalische Chemie, Mess- und Sensortechnik, Technische Universität Dresden , 01062 Dresden, Germany
| | - Franziska Fischer
- Leibniz-Institut für Polymerforschung Dresden e.V. , 01069 Dresden, Germany
- Physikalische Chemie, Mess- und Sensortechnik, Technische Universität Dresden , 01062 Dresden, Germany
| | - Andreas Heerwig
- Physikalische Chemie, Mess- und Sensortechnik, Technische Universität Dresden , 01062 Dresden, Germany
- Kurt-Schwabe Institut für Mess- und Sensortechnik e.V. Meinsberg , 04736 Waldheim, Germany
| | - Alfred Kick
- Kurt-Schwabe Institut für Mess- und Sensortechnik e.V. Meinsberg , 04736 Waldheim, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschung Dresden e.V. , 01069 Dresden, Germany
| | - Manfred Stamm
- Leibniz-Institut für Polymerforschung Dresden e.V. , 01069 Dresden, Germany
| | - Anton Kiriy
- Leibniz-Institut für Polymerforschung Dresden e.V. , 01069 Dresden, Germany
| | - Michael Mertig
- Physikalische Chemie, Mess- und Sensortechnik, Technische Universität Dresden , 01062 Dresden, Germany
- Kurt-Schwabe Institut für Mess- und Sensortechnik e.V. Meinsberg , 04736 Waldheim, Germany
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69
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Qian CG, Chen YL, Feng PJ, Xiao XZ, Dong M, Yu JC, Hu QY, Shen QD, Gu Z. Conjugated polymer nanomaterials for theranostics. Acta Pharmacol Sin 2017; 38:764-781. [PMID: 28552910 PMCID: PMC5520193 DOI: 10.1038/aps.2017.42] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/02/2017] [Indexed: 02/07/2023] Open
Abstract
Conjugated polymer nanomaterials (CPNs), as optically and electronically active materials, hold promise for biomedical imaging and drug delivery applications. This review highlights the recent advances in the utilization of CPNs in theranostics. Specifically, CPN-based in vivo imaging techniques, including near-infrared (NIR) imaging, two-photon (TP) imaging, photoacoustic (PA) imaging, and multimodal (MM) imaging, are introduced. Then, CPN-based photodynamic therapy (PDT) and photothermal therapy (PTT) are surveyed. A variety of stimuli-responsive CPN systems for drug delivery are also summarized, and the promising trends and translational challenges are discussed.
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Affiliation(s)
- Cheng-gen Qian
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA
| | - Yu-lei Chen
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Pei-jian Feng
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xuan-zhong Xiao
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Mei Dong
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Ji-cheng Yu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA
- Center for Nanotechnology in Drug Delivery and Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Quan-yin Hu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA
- Center for Nanotechnology in Drug Delivery and Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Qun-dong Shen
- Department of Polymer Science and Engineering and Key Laboratory of High Performance Polymer Materials and Technology of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC 27695, USA
- Center for Nanotechnology in Drug Delivery and Division of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC 27599, USA
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70
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Wu J, Tan C, Zhou X, Tan Y, Yang P, Jiang Y. Molecular weight analysis of water-soluble poly(phenylene ethynylene)s using MALDI-TOF MS. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28650] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jiatao Wu
- Department of Chemistry; Tsinghua University; Beijing 100084 People's Republic of China
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology; The Graduate School at Shenzhen, Tsinghua University; Shenzhen 518055 People's Republic of China
| | - Chunyan Tan
- Department of Chemistry; Tsinghua University; Beijing 100084 People's Republic of China
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology; The Graduate School at Shenzhen, Tsinghua University; Shenzhen 518055 People's Republic of China
| | - Xinwen Zhou
- Institutes of Biomedical Sciences, Fudan University; Shanghai 200032 People's Republic of China
| | - Ying Tan
- Department of Chemistry; Tsinghua University; Beijing 100084 People's Republic of China
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology; The Graduate School at Shenzhen, Tsinghua University; Shenzhen 518055 People's Republic of China
| | - Pengyuan Yang
- Institutes of Biomedical Sciences, Fudan University; Shanghai 200032 People's Republic of China
| | - Yuyang Jiang
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology; The Graduate School at Shenzhen, Tsinghua University; Shenzhen 518055 People's Republic of China
- Department of Pharmacology and Pharmaceutical Sciences; School of Medicine, Tsinghua University; Beijing 100084 People's Republic of China
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71
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Zhan R, Liu B. End Functionalized Nonionic Water-Dispersible Conjugated Polymers. Macromol Rapid Commun 2017; 38. [PMID: 28508508 DOI: 10.1002/marc.201700010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/11/2017] [Indexed: 11/07/2022]
Abstract
2,7-Dibromofluorene monomers carrying two or four oligo(ethylene glycol) (OEG) side chains are synthesized. Heck coupling between the monomers and 1,4-divinylbenzene followed by end capping with [4-(4-bromophenoxy)butyl]carbamic acid tert-butyl ester leads to two nonionic water-dispersible poly(fluorene-alt-1,4-divinylenephenylene)s end-functionalized with amine groups after hydrolysis. In water, the polymer with a lower OEG density (P1) has poor water dispersibility with a quantum yield of 0.24, while the polymer with a higher OEG density (P2) possesses excellent water-dispersibility with a high quantum yield of 0.45. Both polymers show fluorescence enhancement and blue-shifted absorption and emission maxima in the presence of surfactant sodium dodecyl sulfate and dodecyltrimethylammonium bromide. The polymers are also resistant to ionic strength with minimal nonspecific interactions to bovine serum albumin. When biotin is incorporated into the end of the polymer backbones through N-hydroxysuccinimide/amine coupling reaction, the biotinylated polymers interact specifically with streptavidin on solid surface.
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Affiliation(s)
- Ruoyu Zhan
- School of Materials Science and Engineering, Tongji University, 4800 Caoan Road, Shanghai, 201804, China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 11758, Singapore.,Institute of Materials Research and Engineering, A*STAR, 3 Research Link, 117602, Singapore
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73
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Ding W, Xu J, Wen Y, Zhang J, Liu H, Zhang Z. Highly selective “turn-on” fluorescent sensing of fluoride ion based on a conjugated polymer thin film-Fe3+ complex. Anal Chim Acta 2017; 967:78-84. [DOI: 10.1016/j.aca.2017.02.027] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 02/14/2017] [Accepted: 02/23/2017] [Indexed: 10/20/2022]
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74
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Adachi N, Yoshinari M, Suzuki E, Okada M. Oligo(p-phenylene ethynylene) with Cyanoacrylate Terminal Groups and Graphene Composite as Fluorescent Chemical Sensor for Cysteine. J Fluoresc 2017; 27:1449-1456. [PMID: 28391541 DOI: 10.1007/s10895-017-2084-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 04/04/2017] [Indexed: 12/25/2022]
Abstract
A chemical sensor for cysteine (Cys) was fabricated based on a fluorescent oligo(p-phenylene ethynylene)s (OPEs) and OPE-graphene oxide (GO) composite. OPE with cyanoacrylate terminal groups were synthesized by a Pd-catalyzed Sonogashira coupling reaction and Knoevenagel condensation for use as a chemical sensor for Cys. The optical properties and Cys sensing capability of the cyanoacrylate modified OPE and OPE-GO composite were investigated. In addition of Cys, the fluorescence of OPE was blue-shifted and decreased (fluorescence turn-off), while the fluorescence of the OPE-GO composite was enhanced (fluorescence turn-on). Thus, OPE with cyanoacrylate terminal groups and OPE-GO composite acts a highly sensitive fluorescent chemical sensor for Cys.
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Affiliation(s)
- Naoya Adachi
- Division of Science, School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama, 350-0394, Japan. .,Department of Science and Engineering, Graduate School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama, 350-0394, Japan.
| | - Mariko Yoshinari
- Division of Science, School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama, 350-0394, Japan
| | - Eri Suzuki
- Department of Science and Engineering, Graduate School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama, 350-0394, Japan
| | - Mari Okada
- Department of Science and Engineering, Graduate School of Science and Engineering, Tokyo Denki University, Hatoyama, Hiki-gun, Saitama, 350-0394, Japan
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75
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Lu H, Hu R, Bai H, Chen H, Lv F, Liu L, Wang S, Tian H. Efficient Conjugated Polymer-Methyl Viologen Electron Transfer System for Controlled Photo-Driven Hydrogen Evolution. ACS APPLIED MATERIALS & INTERFACES 2017; 9:10355-10359. [PMID: 28287695 DOI: 10.1021/acsami.7b00069] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Photodriven hydrogen production has been a good strategy in solar energy utilization. In this work, we use a water-soluble negatively charged polythiophene derivative as photosensitizer to produce hydrogen from aqueous solution containing methyl viologen (MV2+), ethylenediaminetetraacetic acid disodium salt (EDTA), and a colloidal platinum catalyst upon exposure to xenon lamp (>420 nm) or natural sunlight. The supramolecular assembly and dis-assembly processes of MV2+ and cucurbit[8]uril (CB[8]) was further used to reversibly "turn-on" and "turn-off" hydrogen generation of the polymer system. This research offers a proof-of-concept to control hydrogen generation in demand, which is an advantage for hydrogen utilization and storage.
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Affiliation(s)
- Huan Lu
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Rong Hu
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Haotian Bai
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Hui Chen
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Fengting Lv
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Libing Liu
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - Shu Wang
- Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China
| | - He Tian
- College of Chemistry and Molecular Engineering, East China University of Science and Technology , Shanghai 200237, P. R. China
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76
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Ponzio RA, Marcato YL, Gómez ML, Waiman CV, Chesta CA, Palacios RE. Crosslinked polymer nanoparticles containing single conjugated polymer chains. Methods Appl Fluoresc 2017; 5:024001. [DOI: 10.1088/2050-6120/aa6405] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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77
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Single-step preparation of polythiophene bearing branched chains by dual initiation polymerization. Macromol Res 2017. [DOI: 10.1007/s13233-017-5028-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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78
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Abumosa RA, Al-Asbahi BA, AlSalhi MS. Optical Properties and Amplified Spontaneous Emission of Novel MDMO-PPV/C500 Hybrid. Polymers (Basel) 2017; 9:E71. [PMID: 30970749 PMCID: PMC6432301 DOI: 10.3390/polym9020071] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 02/13/2017] [Accepted: 02/15/2017] [Indexed: 12/03/2022] Open
Abstract
The influence of the solvent nature on optical properties of poly[2-methoxy-5-3,7-dimethyloctyloxy-1,4-phenylenevinylene] (MDMO-PPV)/Coumarine 500 (C500) have been investigated. In addition, the amplified spontaneous emission (ASE) from MDMO-PPV and efficient energy transfer between the MDMO-PPV and C500 has been verified. The MDMO-PPV was dissolved in aromatic and nonaromatic solvents, while the solution blending method was employed to prepare the MDMO-PPV:C500 hybrid. The quantum yield of the MDMO-PPV was found to increase with the reduction of a few factors such as polarity index of the solvent, absorption cross section (σa), emission cross section (σe), and extinction coefficient (εmax). The fluorescence spectra of the MDMO-PPV appears from two vibronic band transitions (0-0, 0-1) and the ASE occurs at 0-1 transition, which was verified by the ASE from MDMO-PPV. The MDMO-PPV in toluene exhibited the best ASE efficiency due to its high quantum yield compared with other solvents. Strong overlap between the absorption spectrum of MDMO-PPV and emission spectrum of C500 confirmed the efficient energy transfer between them. Moreover, the ASE for energy transfer of the MDMO-PPV:C500 hybrid was proved.
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Affiliation(s)
- Rasha A Abumosa
- Department of Physics & Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Research Chair in Laser Diagnosis of Cancers, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
| | - Bandar Ali Al-Asbahi
- Department of Physics & Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Department of Physics, Faculty of Science, Sana'a University, P.O. Box 12544 Sana'a, Yemen.
| | - Mohamad Saleh AlSalhi
- Department of Physics & Astronomy, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
- Research Chair in Laser Diagnosis of Cancers, College of Science, King Saud University, Riyadh 11451, Saudi Arabia.
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79
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Abelha TF, Phillips TW, Bannock JH, Nightingale AM, Dreiss CA, Kemal E, Urbano L, deMello JC, Green M, Dailey LA. Bright conjugated polymer nanoparticles containing a biodegradable shell produced at high yields and with tuneable optical properties by a scalable microfluidic device. NANOSCALE 2017; 9:2009-2019. [PMID: 28106200 DOI: 10.1039/c6nr09162h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study compares the performance of a microfluidic technique and a conventional bulk method to manufacture conjugated polymer nanoparticles (CPNs) embedded within a biodegradable poly(ethylene glycol) methyl ether-block-poly(lactide-co-glycolide) (PEG5K-PLGA55K) matrix. The influence of PEG5K-PLGA55K and conjugated polymers cyano-substituted poly(p-phenylene vinylene) (CN-PPV) and poly(9,9-dioctylfluorene-2,1,3-benzothiadiazole) (F8BT) on the physicochemical properties of the CPNs was also evaluated. Both techniques enabled CPN production with high end product yields (∼70-95%). However, while the bulk technique (solvent displacement) under optimal conditions generated small nanoparticles (∼70-100 nm) with similar optical properties (quantum yields ∼35%), the microfluidic approach produced larger CPNs (140-260 nm) with significantly superior quantum yields (49-55%) and tailored emission spectra. CPNs containing CN-PPV showed smaller size distributions and tuneable emission spectra compared to F8BT systems prepared under the same conditions. The presence of PEG5K-PLGA55K did not affect the size or optical properties of the CPNs and provided a neutral net electric charge as is often required for biomedical applications. The microfluidics flow-based device was successfully used for the continuous preparation of CPNs over a 24 hour period. On the basis of the results presented here, it can be concluded that the microfluidic device used in this study can be used to optimize the production of bright CPNs with tailored properties with good reproducibility.
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Affiliation(s)
- T F Abelha
- King's College London, Institute of Pharmaceutical Science, Waterloo Campus, SE1 9NH, London, UK
| | - T W Phillips
- Imperial College London, Department of Chemistry, South Kensington Campus, SW7 2AZ, London, UK
| | - J H Bannock
- Imperial College London, Department of Chemistry, South Kensington Campus, SW7 2AZ, London, UK
| | - A M Nightingale
- Faculty of Engineering and the Environment, University of Southampton, Southampton, UK
| | - C A Dreiss
- King's College London, Institute of Pharmaceutical Science, Waterloo Campus, SE1 9NH, London, UK
| | - E Kemal
- King's College London, Department of Physics, Strand Campus, WC2R 2LS, London, UK.
| | - L Urbano
- King's College London, Institute of Pharmaceutical Science, Waterloo Campus, SE1 9NH, London, UK
| | - J C deMello
- Imperial College London, Department of Chemistry, South Kensington Campus, SW7 2AZ, London, UK
| | - M Green
- King's College London, Department of Physics, Strand Campus, WC2R 2LS, London, UK.
| | - L A Dailey
- Institut für Pharmazeutische Technologie und Biopharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany.
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80
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Zhang XT, Wang S, Xing GW. Boronlectin/Polyelectrolyte Ensembles as Artificial Tongue: Design, Construction, and Application for Discriminative Sensing of Complex Glycoconjugates from Panax ginseng. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3368-3375. [PMID: 28071886 DOI: 10.1021/acsami.6b13363] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Ginsenoside is a large family of triterpenoid saponins from Panax ginseng, which possesses various important biological functions. Due to the very similar structures of these complex glycoconjugates, it is crucial to develop a powerful analytic method to identify ginsenosides qualitatively or quantitatively. We herein report an eight-channel fluorescent sensor array as artificial tongue to achieve the discriminative sensing of ginsenosides. The fluorescent cross-responsive array was constructed by four boronlectins bearing flexible boronic acid moieties (FBAs) with multiple reactive sites and two linear poly(phenylene-ethynylene) (PPEs). An "on-off-on" response pattern was afforded on the basis of superquenching of fluorescent indicator PPEs and an analyte-induced allosteric indicator displacement (AID) process. Most importantly, it was found that the canonical distribution of ginsenoside data points analyzed by linear discriminant analysis (LDA) was highly correlated with the inherent molecular structures of the analytes, and the absence of overlaps among the five point groups reflected the effectiveness of the sensor array in the discrimination process. Almost all of the unknown ginsenoside samples at different concentrations were correctly identified on the basis of the established mathematical model. Our current work provided a general and constructive method to improve the quality assessment and control of ginseng and its extracts, which are useful and helpful for further discriminating other complex glycoconjugate families.
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Affiliation(s)
- Xiao-Tai Zhang
- Department of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Shu Wang
- Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Guo-Wen Xing
- Department of Chemistry, Beijing Normal University , Beijing 100875, China
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81
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Hu R, Zhang X, Xu Q, Lu DQ, Yang YH, Xu QQ, Ruan Q, Mo LT, Zhang XB. A universal aptameric biosensor: Multiplexed detection of small analytes via aggregated perylene-based broad-spectrum quencher. Biosens Bioelectron 2017; 92:40-46. [PMID: 28187297 DOI: 10.1016/j.bios.2017.01.051] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/08/2017] [Accepted: 01/23/2017] [Indexed: 12/12/2022]
Abstract
A universal aptameric system based on the taking advantage of double-stranded DNA/perylene diimide (dsDNA/PDI) as the signal probe was developed for multiplexed detection of small molecules. Aptamers are single-stranded DNA or RNA oligonucleotides which are selected in vitro by a process known as systematic evolution of ligands by exponential enrichment. In this work, we synthesized a new kind of PDI and reported this aggregated PDI could quench the double-stranded DNA (dsDNA)-labeled fluorophores with a high quenching efficiency. The quenching efficiencies on the fluorescence of FAM, TAMRA and Cy5 could reach to 98.3%±0.9%, 97.2%±0.6% and 98.1%±1.1%, respectively. This broad-spectrum quencher was then adopted to construct a multicolor biosensor via a label-free approach. A structure-switching-triggered enzymatic recycling amplification was employed for signal amplification. High quenching efficiency combined with autocatalytic target recycling amplification afforded the biosensor with high sensitivity towards small analytes. For other targets, changing the corresponding aptamer can achieve the goal. The quencher did not interfere with the catalytic activity of nuclease. The biosensor could be manipulated with similar sensitivity no matter in pre-addition or post-addition manner. Moreover, simultaneous and multiplexed analysis of several small molecules in homogeneous solution was achieved, demonstrating its potential application in the rapid screening of multiple biotargets.
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Affiliation(s)
- Rong Hu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, PR China.
| | - Xi Zhang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, PR China
| | - Qiang Xu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, PR China
| | - Dan-Qing Lu
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theronastics, Hunan University, Changsha 410082, China
| | - Yun-Hui Yang
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, PR China
| | - Quan-Qing Xu
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, PR China
| | - Qiong Ruan
- College of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, Yunnan, PR China
| | - Liu-Ting Mo
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theronastics, Hunan University, Changsha 410082, China
| | - Xiao-Bing Zhang
- Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Collaborative Innovation Center for Molecular Engineering for Theronastics, Hunan University, Changsha 410082, China
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82
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Kahveci Z, Martínez-Tomé MJ, Mallavia R, Mateo CR. Fluorescent Biosensor for Phosphate Determination Based on Immobilized Polyfluorene-Liposomal Nanoparticles Coupled with Alkaline Phosphatase. ACS APPLIED MATERIALS & INTERFACES 2017; 9:136-144. [PMID: 27966351 DOI: 10.1021/acsami.6b12434] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This work describes the development of a novel fluorescent biosensor based on the inhibition of alkaline phosphatase (ALP). The biosensor is composed of the enzyme ALP and the conjugated cationic polyfluorene HTMA-PFP. The working principle of the biosensor is based on the fluorescence quenching of this polyelectrolyte by p-nitrophenol (PNP), a product of the hydrolysis reaction of p-nitrophenyl phosphate (PNPP) catalyzed by ALP. Because HTMA-PFP forms unstable aggregates in buffer, with low fluorescence efficiency, previous stabilization of the polyelectrolyte was required before the development of the biosensor. HTMA-PFP was stabilized through its interaction with lipid vesicles to obtain stable blue-emitting nanoparticles (NPs). Fluorescent NPs were characterized, and the ability to be quenched by PNP was evaluated. These nanoparticles were coupled to ALP and entrapped in a sol-gel matrix to produce a biosensor that can serve as a screening platform to identify ALP inhibitors. The components of the biosensor were examined before and after sol-gel entrapment, and the biosensor was optimized to allow the determination of phosphate ion in aqueous medium.
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Affiliation(s)
- Zehra Kahveci
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202, Elche, Alicante, Spain
| | - Maria José Martínez-Tomé
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202, Elche, Alicante, Spain
| | - Ricardo Mallavia
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202, Elche, Alicante, Spain
| | - C Reyes Mateo
- Instituto de Biología Molecular y Celular, Universidad Miguel Hernández , 03202, Elche, Alicante, Spain
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83
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Shin S, Lim J, Gu ML, Yu CY, Hong M, Char K, Choi TL. Dimensionally controlled water-dispersible amplifying fluorescent polymer nanoparticles for selective detection of charge-neutral analytes. Polym Chem 2017. [DOI: 10.1039/c7py01582h] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fluorescent nanoparticles composed of poly(p-phenylenevinylene) block copolymers were prepared by the facile one-step process and exhibited discriminative detection of neutral explosives against charged molecules.
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Affiliation(s)
- Suyong Shin
- Department of Chemistry
- Seoul National University
- Seoul
- Korea
| | - Jeewoo Lim
- School of Chemical & Biological Engineering
- Seoul National University
- Seoul
- Korea
| | - Ming-Long Gu
- Department of Materials Science and Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
| | - Chin-Yang Yu
- Department of Materials Science and Engineering
- National Taiwan University of Science and Technology
- Taipei
- Taiwan
| | | | - Kookheon Char
- School of Chemical & Biological Engineering
- Seoul National University
- Seoul
- Korea
| | - Tae-Lim Choi
- Department of Chemistry
- Seoul National University
- Seoul
- Korea
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84
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Aloi A, Guibert C, Olijve LL, Voets IK. Morphological evolution of complex coacervate core micelles revealed by iPAINT microscopy. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.08.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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85
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González-Sánchez MI, Laurenti M, Rubio-Retama J, López-Cabarcos E, Valero E. Searching for the fluorescence quenching mechanism of conjugated polymers by cytochrome c. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.05.082] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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86
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Ansari MH, Hassan S, Qurashi A, Khanday FA. Microfluidic-integrated DNA nanobiosensors. Biosens Bioelectron 2016; 85:247-260. [DOI: 10.1016/j.bios.2016.05.009] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/02/2016] [Accepted: 05/02/2016] [Indexed: 11/28/2022]
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87
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Kusamoto T, Kimura S, Ogino Y, Ohde C, Nishihara H. Modulated Luminescence of a Stable Open-Shell Triarylmethyl Radical: Effects of Chemical Modification on Its Electronic Structure and Physical Properties. Chemistry 2016; 22:17725-17733. [DOI: 10.1002/chem.201602942] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/10/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Tetsuro Kusamoto
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Shun Kimura
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Yasuyo Ogino
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Chie Ohde
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Hiroshi Nishihara
- Department of Chemistry; Graduate School of Science; The University of Tokyo; 7-3-1, Hongo, Bunkyo-ku Tokyo 113-0033 Japan
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88
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Samanta SK, Scherf U. Cationic Main-Chain Polyelectrolytes with Pyridinium-Basedp-Phenylenevinylene Units and Their Aggregation-Induced Gelation. MACROMOL CHEM PHYS 2016. [DOI: 10.1002/macp.201600374] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Suman Kalyan Samanta
- Macromolecular Chemistry Group and Institute for Polymer Technology; Wuppertal University; Gauss-Strasse 20 42119 Wuppertal Germany
| | - Ullrich Scherf
- Macromolecular Chemistry Group and Institute for Polymer Technology; Wuppertal University; Gauss-Strasse 20 42119 Wuppertal Germany
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89
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Alizadeh N, Akbarinejad A, Ghoorchian A. Photophysical Diversity of Water-Soluble Fluorescent Conjugated Polymers Induced by Surfactant Stabilizers for Rapid and Highly Selective Determination of 2,4,6-Trinitrotoluene Traces. ACS APPLIED MATERIALS & INTERFACES 2016; 8:24901-8. [PMID: 27579479 DOI: 10.1021/acsami.6b08577] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The increasing application of fluorescence spectroscopy in development of reliable sensing platforms has triggered a lot of research interest for the synthesis of advanced fluorescent materials. Herein, we report a simple, low-cost strategy for the synthesis of a series of water-soluble conjugated polymer nanoparticles with diverse emission range using cationic (hexadecyltrimethylammonium bromide, CTAB), anionic (sodium dodecylbenzenesulfonate, SDBS), and nonionic (TX114) surfactants as the stabilizing agents. The role of surfactant type on the photophisical and sensing properties of resultant polymers has been investigated using dynamic light scattering (DLS), FT-IR, UV-vis, fluorescence, and energy dispersive X-ray (EDS) spectroscopies. The results show that the surface polarity, size, and spectroscopic and sensing properties of conjugated polymers could be well controlled by the proper selection of the stabilizer type. The fluorescent conjugated polymers exhibited fluorescence quenching toward nitroaromatic compounds. Further studies on the fluorescence properties of conjugated polymers revealed that the emission of the SDBS stabilized polymer, N-methylpolypyrrole-SDBS (NMPPY-SDBS), is strongly quenched by 2,4,6-trinitrotoluene molecule with a large Stern -Volmer constant of 59 526 M(-1) and an excellent detection limit of 100 nM. UV-vis and cyclic voltammetry measurements unveiled that fluorescence quenching occurs through a charge transfer mechanism between electron rich NMPPY-SDBS and electron deficient 2,4,6-trinitrotoluene molecules. Finally, the as-prepared conjugated polymer and approach were successfully applied to the determination of 2,4,6-trinitrotoluene in real water samples.
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Affiliation(s)
- Naader Alizadeh
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University , 14115-175, Tehran, Iran
| | - Alireza Akbarinejad
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University , 14115-175, Tehran, Iran
| | - Arash Ghoorchian
- Department of Chemistry, Faculty of Basic Sciences, Tarbiat Modares University , 14115-175, Tehran, Iran
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90
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Affiliation(s)
- Simanta Kundu
- Department
of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
| | - Amitava Patra
- Department
of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700032, India
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91
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Dou WT, Zeng YL, Lv Y, Wu J, He XP, Chen GR, Tan C. Supramolecular Ensembles Formed between Charged Conjugated Polymers and Glycoprobes for the Fluorogenic Recognition of Receptor Proteins. ACS APPLIED MATERIALS & INTERFACES 2016; 8:13601-13606. [PMID: 27159586 DOI: 10.1021/acsami.6b03223] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
This paper describes the simple construction of a unique class of supramolecular ensembles formed by electrostatic self-assembly between charged conjugated polymers and fluorophore-coupled glycoligands (glycoprobes) for the selective fluorogenic detection of receptor proteins at both the molecular and cellular levels. We show that positively and negatively charged diazobenzene-containing poly(p-phenylethynylenes) (PPEs) can be used to form stable fluorogenic probes with fluorescein-based (negatively charged) and rhodamine B based (positively charged) glycoprobes by electrostatic interaction. The structures of the ensembles have been characterized by spectroscopic and microscopic techniques. The supramolecular probes formed show quenched fluorescence in an aqueous buffer solution, which can be specifically recovered, in a concentration-dependent manner, through competitive complexation with a selective protein receptor, over a range of other unselective proteins. The ensembles also show selective fluorescence enhancement with a live cell that expresses the glycoligand receptor but not a control cell without receptor expression.
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Affiliation(s)
- Wei-Tao Dou
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Ya-Li Zeng
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Ying Lv
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, The Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Jiatao Wu
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, The Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Xiao-Peng He
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Guo-Rong Chen
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Chunyan Tan
- The Ministry-Province Jointly Constructed Base for State Key Lab-Shenzhen Key Laboratory of Chemical Biology, The Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
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92
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Zhan R, Liu B. Functionalized Conjugated Polyelectrolytes for Biological Sensing and Imaging. CHEM REC 2016; 16:1715-40. [DOI: 10.1002/tcr.201500308] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Ruoyu Zhan
- School of Materials Science and Engineering; Tongji University; 4800 Caoan Road Shanghai 201804 P. R. China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering; National University of Singapore 4 Engineering Drive 4117585 Singapore (Republic of Singapore) and Institution of Materials Research and Engineering A*STAR3 Research Link; 117602 Singapore Republic of Singapore
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93
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Thivaios I, Kakogianni S, Bokias G. A Library of Quinoline-Labeled Water-Soluble Copolymers with pH-Tunable Fluorescence Response in the Acidic pH Region. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00258] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ioannis Thivaios
- Department
of Chemistry, University of Patras, University Campus, Rio-Patras GR26504, Greece
| | - Sofia Kakogianni
- Department
of Chemistry, University of Patras, University Campus, Rio-Patras GR26504, Greece
| | - Georgios Bokias
- Department
of Chemistry, University of Patras, University Campus, Rio-Patras GR26504, Greece
- Foundation for
Research and Technology Hellas/Institute of Chemical Engineering Sciences
(FORTH/ICE-HT), Platani Str., Patras GR26504, Greece
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94
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Yang C, Liu H, Zhang Y, Xu Z, Wang X, Cao B, Wang M. Hydrophobic-Sheath Segregated Macromolecular Fluorophores: Colloidal Nanoparticles of Polycaprolactone-Grafted Conjugated Polymers with Bright Far-Red/Near-Infrared Emission for Biological Imaging. Biomacromolecules 2016; 17:1673-83. [PMID: 27010718 DOI: 10.1021/acs.biomac.6b00092] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This article describes molecular design, synthesis and characterization of colloidal nanoparticles containing polycaprolactone-grafted conjugated polymers that exhibit strong far red/near-infrared (FR/NIR) fluorescence for bioimaging. Specifically, we synthesized two kinds of conjugated polymer bottle brushes (PFTB(out)-g-PCL and PFTB(in)-g-PCL) with different positions of the hexyl groups on the thiophene rings. A synthetic amphiphilic block copolymer PCL-b-POEGMA was employed as surfactants to encapsulate PFTB-g-PCL polymers into colloidal nanoparticles (denoted as "nanoREDs") in aqueous media. The chain length of the PCL side chains in PFTB-g-PCL played a critical role in determining the fluorescence properties in both bulk solid states and the colloidal nanoparticles. Compared to semiconducting polymer dots (Pdots) composed of PFTB(out) without grafted PCL, nanoRED(out) showed at least four times higher fluorescence quantum yield (∼20%) and a broader emission band centered at 635 nm. We further demonstrated the application of this new class of nanoREDs for effective labeling of L929 cells and HeLa cancer cells with good biocompatibility. This strategy of hydrophobic-sheath segregated macromolecular fluorophores is expected to be applicable to a broad range of conjugated polymers with tunable optical properties for applications such as bioimaging.
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Affiliation(s)
- Cangjie Yang
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 62 Nanyang Drive, Singapore 637459
| | - Hui Liu
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 62 Nanyang Drive, Singapore 637459
| | | | - Zhigang Xu
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 62 Nanyang Drive, Singapore 637459
| | - Xiaochen Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 62 Nanyang Drive, Singapore 637459
| | | | - Mingfeng Wang
- School of Chemical and Biomedical Engineering, Nanyang Technological University , 62 Nanyang Drive, Singapore 637459
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95
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Chan K, Yik-Sham Chung C, Wing-Wah Yam V. Parallel folding topology-selective label-free detection and monitoring of conformational and topological changes of different G-quadruplex DNAs by emission spectral changes via FRET of mPPE-Ala-Pt(ii) complex ensemble. Chem Sci 2016; 7:2842-2855. [PMID: 30090278 PMCID: PMC6055111 DOI: 10.1039/c5sc04563k] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 01/05/2016] [Indexed: 12/28/2022] Open
Abstract
The formation of supramolecular assemblies between [Pt(bzimpy-Et){C[triple bond, length as m-dash]CC6H4(CH2NMe3-4)}]Cl2 (1) and mPPE-Ala and the FRET properties of the ensemble have been revealed from the UV-vis absorption, steady-state emission and time-resolved emission decay studies. The two-component mPPE-Ala-1 ensemble has been employed in a "proof-of-principle" concept for label-free detection of G-quadruplex DNAs with the intramolecular propeller parallel folding topology, such as c-myc, in aqueous buffer solution. By the modulation of the aggregation/deaggregation of the polymer-metal complex aggregates and hence the FRET from the mPPE-Ala donor to the aggregated 1 as acceptor, the ensemble has been demonstrated for sensitive and selective label-free detection of c-myc via the monitoring of emission spectral changes of the ensemble. Ratiometric emission of the ensemble at 461 and 662 nm has been shown to distinguish the intramolecular propeller parallel G-quadruplex folding topology of c-myc from other G-quadruplex-forming sequences of different folding topologies, owing to the strong and specific interactions between c-myc and 1 as suggested by the UV-vis absorption and UV melting studies. In addition, the formation of high-order intermolecular multimeric G-quadruplexes from c-myc under molecular crowding conditions has been successfully probed by the ratiometric emission of the ensemble. The conformational and topological transition of human telomeric DNA from the mixed-hybrid form to the intramolecular propeller parallel form, as observed from the circular dichroism spectroscopy, has also been monitored by the ratiometric emission of the ensemble. The ability of the ensemble to detect these conformational and topological transitions of G-quadruplex DNAs has been rationalized by the excellent selectivity and sensitivity of the ensemble towards the intramolecular propeller parallel G-quadruplex DNAs and their high-order intermolecular multimers, which are due to the extra stabilization gained from Pt···Pt and π-π interactions in addition to the electrostatic and hydrophobic interactions found in the polymer-metal complex aggregates.
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Affiliation(s)
- Kevin Chan
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Clive Yik-Sham Chung
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
| | - Vivian Wing-Wah Yam
- Institute of Molecular Functional Materials (Areas of Excellence Scheme, University Grants Committee (Hong Kong)) , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong , P. R. China .
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96
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Twomey M, Mendez E, Manian RK, Lee S, Moon JH. Mitochondria-specific conjugated polymer nanoparticles. Chem Commun (Camb) 2016; 52:4910-3. [PMID: 26974193 DOI: 10.1039/c6cc00810k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biodegradable conjugated polymer nanoparticles (CPNs) were prepared for high mitochondrial targeting in live cancer cells. The degradable CPNs are nontoxic and specifically localized to the mitochondria of live tumor cells through macropinocytosis followed by intracellular degradation and trafficking.
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Affiliation(s)
- Megan Twomey
- Department of Chemistry and Biochemistry, Biomolecular Sciences Institute, Florida International University, Miami, Florida 33199, USA.
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97
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Chen Z, Wu P, Cong R, Xu N, Tan Y, Tan C, Jiang Y. Sensitive Conjugated-Polymer-Based Fluorescent ATP Probes and Their Application in Cell Imaging. ACS APPLIED MATERIALS & INTERFACES 2016; 8:3567-74. [PMID: 26393287 DOI: 10.1021/acsami.5b06935] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Three cationic conjugated polyelectrolytes (CPEs) with a common poly(p-phenylene ethynylene terthiophene) backbone and side chains of different lengths, named as PPET3-N1, PPET3-N2, and PPET3-N3, were designed and synthesized. The UV-vis absorption and fluorescence spectra of the polymers vary strongly with solvent composition, suggesting that the polymers are strongly aggregated in H2O. In addition, the spectroscopic properties of the polymers are affected by small-molecule ATP, characterized by significant fluorescence intensity decreases and red shifts of their absorption bands. Further application of these polymers in cell imaging was studied by confocal fluorescence microscopy, which demonstrated that all of the polymers were localized on the cell membrane and partially inside of cells and that the staining effect gradually increased with the length of the polymer side chains. On the basis of the low cytotoxicity and efficient quenching of PPET3-N2 by ATP, the dose and time effects of ATP on PPET3-N2 imaging were studied, and the results indicated that this polymer might have potential in cell imaging for ATP semiquantification in vivo.
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Affiliation(s)
- Zhifang Chen
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
- The Ministry-Province Jointly Constructed Base for State Key Lab, Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Pan Wu
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
- The Ministry-Province Jointly Constructed Base for State Key Lab, Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Rong Cong
- Cranbrook Kingswood Upper School , Bloomfield Hills, Michigan 48304, United States
| | - Naihan Xu
- The Ministry-Province Jointly Constructed Base for State Key Lab, Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Ying Tan
- The Ministry-Province Jointly Constructed Base for State Key Lab, Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Chunyan Tan
- Department of Chemistry, Tsinghua University , Beijing 100084, P. R. China
- The Ministry-Province Jointly Constructed Base for State Key Lab, Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
| | - Yuyang Jiang
- The Ministry-Province Jointly Constructed Base for State Key Lab, Shenzhen Key Laboratory of Chemical Biology, Graduate School at Shenzhen, Tsinghua University , Shenzhen 518055, P. R. China
- Department of Pharmacology and Pharmaceutical Sciences, School of Medicine, Tsinghua University , Beijing 100084, P. R. China
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98
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Tan H, Liu H, Liu Y, Duan W, Yi X, Wu Y, Zhao H, Bai L. A novel water-soluble fluorescent polymer based on perylene bisimides dyes: one-pot preparation and its bio-imaging. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2016; 27:455-71. [DOI: 10.1080/09205063.2015.1136860] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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99
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Lv F, Qiu T, Liu L, Ying J, Wang S. Recent Advances in Conjugated Polymer Materials for Disease Diagnosis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:696-705. [PMID: 26679834 DOI: 10.1002/smll.201501700] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 10/28/2015] [Indexed: 06/05/2023]
Abstract
The extraordinary optical amplification and light-harvesting properties of conjugated polymers impart sensing systems with higher sensitivity, which meets the primary demands of early cancer diagnosis. Recent advances in the detection of DNA methylation and mutation with polyfluorene derivatives based fluorescence resonance energy transfer (FRET) as a means to modulate fluorescent responses attest to the great promise of conjugated polymers as powerful tools for the clinical diagnosis of diseases. To facilitate the ever-changing needs of diagnosis, the development of detection approaches and FRET signal analysis are highlighted in this review. Due to their exceptional brightness, excellent photostability, and low or absent toxicity, conjugated polymers are verified as superior materials for in-vivo imaging, and provide feasibility for future clinical molecular-imaging applications. The integration of conjugated polymers with clinical research has shown profound effects on diagnosis for the early detection of disease-related biomarkers, as well as in-vivo imaging, which leads to a multidisciplinary scientific field with perspectives in both basic research and application issues.
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Affiliation(s)
- Fengting Lv
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Tian Qiu
- Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, PR China
| | - Libing Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
| | - Jianming Ying
- Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, PR China
| | - Shu Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, PR China
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Thiourea based conjugated polymer fluorescent chemosensor for Cu+ and its use for the detection of hydrogen peroxide and glucose. CHINESE JOURNAL OF POLYMER SCIENCE 2016. [DOI: 10.1007/s10118-016-1760-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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