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Roy S, Maji TK. Self-assembled organic and hybrid materials derived from oligo-( p-phenyleneethynylenes). Chem Commun (Camb) 2022; 58:4149-4167. [PMID: 35274120 DOI: 10.1039/d2cc00186a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oligo-(p-Phenyleneethynylenes) (OPEs) have garnered widespread interest over the past three decades due to their excellent opto-electronic properties. However, the chief focus has been on the use of mainly small molecules or polymeric systems for the study of their structural diversity in opto-electronic applications. Recently, researchers have started delving deeper into their utility in material applications. Purely organic materials such as supramolecular polymers, self-assembled nanostructures, nanostructured organogels and single-crystalline materials derived from OPEs have already been developed and researched. Chirality has also been introduced into these systems. Additionally, these have shown physical properties such as polymorphism, liquid crystallinity, melt formation, mechanochromism, etc. All these materials have also shown excellent luminescence properties with high quantum yield and some have even shown energy harvesting properties. There have also been sporadic reports on OPE linker based hybrid systems such as metallogels and metal-organic framework (MOF) structures where structural analysis reveals the origin of tunable emission in these materials. Furthermore, by innovative structural design, unexplored properties of OPEs such as water repellency, bioimaging, drug delivery, photocatalysis, energy transfer, nanomorphology control, photoconductivity, and colour tunability could be achieved. This feature article will, therefore, encompass a detailed discussion on the development of this field as well as the analysis of the properties realized in OPE derived self-assembled supramolecular materials. The main focus will be on the following classes of materials: soft supramolecular materials, crystalline supramolecular π-systems, nanoscale metal-organic frameworks (NMOFs) and bulk metal-organic frameworks (MOFs) and how their application horizon has been expanded by integrating OPEs into their structures.
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Affiliation(s)
- Syamantak Roy
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Material (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India.
| | - Tapas Kumar Maji
- Molecular Materials Laboratory, Chemistry and Physics of Materials Unit, School of Advanced Material (SAMat), Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India.
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2
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Kim D, Hahm D, Kwon S, Lim J, Char K. Controlled Phase Separation in Poly( p-phenyleneethynylene) Thin Films and Its Relationship to Vapor-Sensing Properties. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4011-4019. [PMID: 30779580 DOI: 10.1021/acs.langmuir.8b03939] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this paper, we report the synthesis and mesoporous film formation of hydrophobic rodlike poly( p-phenyleneethynylene)s (PPEs) and present porosity-dependent quenching studies using 1,3,5-trinitrotoluene (TNT) vapors. Nonsolvent vapor-induced phase separation was used to induce pore formation during film casting, and the concentration of PPEs in the casting solution was controlled carefully to prevent excimer formation. We found that the structures of the sidechains of the PPEs strongly influence the range of relative humidity at which controlled pore generation occurs, which could be rationalized from interfacial energies calculated from contact angle measurements. Porosity of the PPE films resulted in increased efficiency of fluorescence quenching toward TNT vapors, which previously required very thin films (below 5 nm) for sensing applications. The control of the porous structure as well as film thickness constitutes a promising strategy for enhancing the efficiency of chemosensors and in more general applications requiring fine-tuned polymer-gas interactions.
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Affiliation(s)
- Dowan Kim
- The National Creative Research Initiative Center for Intelligent Hybrids, School of Chemical & Biological Engineering , Seoul National University , Seoul 08826 , Korea
| | - Donghyo Hahm
- The National Creative Research Initiative Center for Intelligent Hybrids, School of Chemical & Biological Engineering , Seoul National University , Seoul 08826 , Korea
| | - Soonhyoung Kwon
- The National Creative Research Initiative Center for Intelligent Hybrids, School of Chemical & Biological Engineering , Seoul National University , Seoul 08826 , Korea
| | - Jeewoo Lim
- Department of Chemistry , Kyung Hee University , 26 Kyungheedae-ro , Dongdaemun-gu, Seoul 02447 , Korea
| | - Kookheon Char
- The National Creative Research Initiative Center for Intelligent Hybrids, School of Chemical & Biological Engineering , Seoul National University , Seoul 08826 , Korea
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Terzioğlu P, Yücel S, Kuş Ç. Review on a novel biosilica source for production of advanced silica‐based materials: Wheat husk. ASIA-PAC J CHEM ENG 2018. [DOI: 10.1002/apj.2262] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Pınar Terzioğlu
- Department of Fiber and Polymer Engineering, Faculty of Engineering and Natural SciencesBursa Technical University Bursa Turkey
| | - Sevil Yücel
- Department of Bioengineering, Faculty of Chemistry and MetallurgyYildiz Technical University Istanbul Turkey
| | - Çiğdem Kuş
- Department of Chemistry, Faculty of ScienceMuğla Sıtkı Koçman University Muğla Turkey
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Jia J, Zhou HY, Kang SY, Wang KZ. Terpyridyl covalently functionalized silica microsphere for “naked-eye” colorimetric detection of ferrous ion in fully aqueous system. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.03.075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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5
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Liu Q, Qiu K, He S, Liu H, Liu Z, Hong Y, Fu S. Structure dependence of lasing action in organic polymer films on DFB gratings for dinitrotoluene vapor detection. Analyst 2016; 141:4018-23. [DOI: 10.1039/c6an00653a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Amplified spontaneous emission of SOP films on distributed feedback gratings for rapid and sensitive fluorescence quenching detection of explosive vapors.
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Affiliation(s)
- Qiufeng Liu
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei
- China
| | - Keqiang Qiu
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei
- China
| | - Shengnan He
- No. 38 Research Institute of China Electronics
- Technology Group Corporation
- Hefei
- China
| | - Honglin Liu
- Chinese Academy of Science
- Institute of Intelligent Machines
- Hefei
- China
| | - Zhengkun Liu
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei
- China
| | - Yilin Hong
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei
- China
| | - Shaojun Fu
- National Synchrotron Radiation Laboratory
- University of Science and Technology of China
- Hefei
- China
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Conrad CA, Bedford MS, Buelt AA, Galabura Y, Luzinov I, Smith RC. Phosphonium polyelectrolytes: influence of diphosphine spacer on layer-by-layer assembly with anionic conjugated polymers. POLYM INT 2015. [DOI: 10.1002/pi.4930] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Catherine A Conrad
- Laboratory for Creative Inquiry in Chemistry; Clemson University; Clemson SC 29634 USA
| | - Monte S Bedford
- Department of Materials Science and Engineering; Clemson University; Clemson SC 29634 USA
| | - Ashley A Buelt
- Department of Chemistry; Clemson University; Clemson SC 29634 USA
| | - Yuriy Galabura
- Department of Materials Science and Engineering; Clemson University; Clemson SC 29634 USA
| | - Igor Luzinov
- Department of Materials Science and Engineering; Clemson University; Clemson SC 29634 USA
| | - Rhett C Smith
- Laboratory for Creative Inquiry in Chemistry; Clemson University; Clemson SC 29634 USA
- Department of Chemistry; Clemson University; Clemson SC 29634 USA
- Center for Optical Materials Science and Engineering Technology; Clemson University; Anderson SC 29634 USA
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Karam P, Hariri AA, Calver CF, Zhao X, Schanze KS, Cosa G. Interaction of anionic phenylene ethynylene polymers with lipids: from membrane embedding to liposome fusion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:10704-10711. [PMID: 25115171 DOI: 10.1021/la502572u] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Here we report spectroscopic studies on the interaction of negatively charged, amphiphilic polyphenylene ethynylene (PPE) polymers with liposomes prepared either from negative, positive or zwitterionic lipids. Emission spectra of PPEs of 7 and 49 average repeat units bearing carboxylate terminated side chains showed that the polymer embeds within positively charged lipids where it exists as free chains. No interaction was observed between PPEs and negatively charged lipids. Here the polymer remained aggregated giving rise to broad emission spectra characteristic of the aggregate species. In zwitterionic lipids, we observed that the majority of the polymer remained aggregated yet a small fraction readily embedded within the membrane. Titration experiments revealed that saturation of zwitterionic lipids with polymer typically occurred at a polymer repeat unit to lipid mole ratio close to 0.05. No further membrane embedding was observed above that point. For liposomes prepared from positively charged lipids, saturation was observed at a PPE repeat unit to lipid mole ratio of ∼0.1 and liposome precipitation was observed above this point. FRET studies showed that precipitation was preceded by lipid mixing and liposome fusion induced by the PPEs. This behavior was prominent for the longer polymer and negligible for the shorter polymer at a repeat unit to lipid mole ratio of 0.05. We postulate that fusion is the consequence of membrane destabilization whereby the longer polymer gives rise to more extensive membrane deformation than the shorter polymer.
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Affiliation(s)
- Pierre Karam
- Department of Chemistry and Centre for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University , 801 Sherbrooke Street West, Montreal, Québec H3A 0B8, Canada
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8
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Ahmad S. Organic semiconductors for device applications: current trends and future prospects. JOURNAL OF POLYMER ENGINEERING 2014. [DOI: 10.1515/polyeng-2013-0267] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
With the rich experience of developing silicon devices over a period of the last six decades, it is easy to assess the suitability of a new material for device applications by examining charge carrier injection, transport, and extraction across a practically realizable architecture; surface passivation; and packaging and reliability issues besides the feasibility of preparing mechanically robust wafer/substrate of single-crystal or polycrystalline/amorphous thin films. For material preparation, parameters such as purification of constituent materials, crystal growth, and thin-film deposition with minimum defects/disorders are equally important. Further, it is relevant to know whether conventional semiconductor processes, already known, would be useable directly or would require completely new technologies. Having found a likely candidate after such a screening, it would be necessary to identify a specific area of application against an existing list of materials available with special reference to cost reduction considerations in large-scale production. Various families of organic semiconductors are reviewed here, especially with the objective of using them in niche areas of large-area electronic displays, flexible organic electronics, and organic photovoltaic solar cells. While doing so, it appears feasible to improve mobility and stability by adjusting π-conjugation and modifying the energy band-gap. Higher conductivity nanocomposites, formed by blending with chemically conjugated C-allotropes and metal nanoparticles, open exciting methods of designing flexible contact/interconnects for organic and flexible electronics as can be seen from the discussion included here.
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Mendoza-Dorantes T, Pal U, Vega-Acosta J, Márquez-Beltrán C. Encapsulation and surface charge manipulation of organic and inorganic colloidal substrates by multilayered polyelectrolyte films. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2013.05.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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10
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Rochat S, Swager TM. Conjugated amplifying polymers for optical sensing applications. ACS APPLIED MATERIALS & INTERFACES 2013; 5:4488-502. [PMID: 23682919 DOI: 10.1021/am400939w] [Citation(s) in RCA: 250] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Thanks to their unique optical and electrochemical properties, conjugated polymers have attracted considerable attention over the last two decades and resulted in numerous technological innovations. In particular, their implementation in sensing schemes and devices was widely investigated and produced a multitude of sensory systems and transduction mechanisms. Conjugated polymers possess numerous attractive features that make them particularly suitable for a broad variety of sensing tasks. They display sensory signal amplification (compared to their small-molecule counterparts) and their structures can easily be tailored to adjust solubility, absorption/emission wavelengths, energy offsets for excited state electron transfer, and/or for use in solution or in the solid state. This versatility has made conjugated polymers a fluorescence sensory platform of choice in the recent years. In this review, we highlight a variety of conjugated polymer-based sensory mechanisms together with selected examples from the recent literature.
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Affiliation(s)
- Sébastien Rochat
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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11
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Yu L, Li T, Wang Q, Li L, Chen L. Near-infrared aminocyanine dyes: synthesis, optical properties, and application to the preparation of fluorescent microspheres. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1052-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Kristufek SL, Maltais TR, Tennyson EG, Osti NC, Perahia D, Tennyson AG, Smith RC. Bipyridyl-modified phosphonium polyelectrolytes: synthesis, photophysics, metal ion coordination and layer-by-layer assembly with anionic conjugated polymers. Polym Chem 2013. [DOI: 10.1039/c3py20765j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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13
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Yu L, Wang Q, Li T, Chen L. Preparation of a pH-Sensitive Polystyrene Fluorescent Microsphere based on a Cyanine Dye. JOURNAL OF CHEMICAL RESEARCH 2012. [DOI: 10.3184/174751912x13466874476971] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel pH-sensitive near-IR (NIR) fluorescent dye was synthesised and utilised in the preparation of fluorescent polystyrene microspheres. Their photochemical properties, as well as the pH-dependent optical properties were investigated and showed high sensitivity to changes of pH in the range of 3.3–8.1. The fluorescence became stronger with the increase in pH. Importantly, the microspheres were able to work in aqueous media, which is highly valuable for use in biological applications.
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Affiliation(s)
- Liang Yu
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Qiuling Wang
- School of Pharmaceuticals and Biotechnology, Tianjin University, Tianjin, 300072, P. R. China
| | - Tingting Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Ligong Chen
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
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Lian X, Zhao F, Li Y, Wang J, Li S, Zhao H. Photophysical properties and self-assembly of triblock copolymer with complexes of positively charged PDMAEMA and oppositely charged chromophores. POLYMER 2012. [DOI: 10.1016/j.polymer.2012.03.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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15
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Liu HW, Ngo AT, Cosa G. Enhancing the Emissive Properties of Poly(p-phenylenevinylene)-Conjugated Polyelectrolyte-Coated SiO2 Nanoparticles. J Am Chem Soc 2012; 134:1648-52. [DOI: 10.1021/ja208437e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hsiao-Wei Liu
- Department
of Chemistry and Centre for Self-Assembled
Chemical Structures (CSACS/CRMAA), McGill University, 801 Sherbrooke
Street West, Montreal, Quebec H3A 2K6, Canada
| | - An Thien Ngo
- Department
of Chemistry and Centre for Self-Assembled
Chemical Structures (CSACS/CRMAA), McGill University, 801 Sherbrooke
Street West, Montreal, Quebec H3A 2K6, Canada
| | - Gonzalo Cosa
- Department
of Chemistry and Centre for Self-Assembled
Chemical Structures (CSACS/CRMAA), McGill University, 801 Sherbrooke
Street West, Montreal, Quebec H3A 2K6, Canada
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16
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Zhu D, He Q, Chen Q, Fu Y, He C, Shi L, Meng X, Deng C, Cao H, Cheng J. Sensitivity gains in chemosensing by optical and structural modulation of ordered assembly arrays of ZnO nanorods. ACS NANO 2011; 5:4293-4299. [PMID: 21604766 DOI: 10.1021/nn103211d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Nanomaterials and -structures have attracted much attention owing to their applications to ultrasensitive nanodevices. In this work, ordered assembly arrays of ZnO nanorods have been hydrothermally fabricated and used as optical substrates of fluorescence sensors for toxic vapors. The unique fastigiate nanorod assembly combines merits of single fibers and clusters, possessing identical orientation, large surface-to-volume ratio, evanescent transmission, and evanescent coupling. As coated on the assembly arrays, different sensing materials all generated amplified spontaneous emission (ASE) action such that the fluorescence intensity of the narrowed spectrum was 52.4-fold enhanced. Results of sensing experiments indicate that sensors based on the assembly arrays displayed 100% elevated normalized quenching rate and several times longer full-load time compared with reference sensors. This work provides a facile method to fabricate secondary structures of 1D rigid material and presents a new way to design highly sensitive optic sensors. Furthermore, evanescent excitation caused ASE action of fluorescent organics, and the correlative sensitivity gain is of interest in both theoretical research and the applications field.
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Affiliation(s)
- Defeng Zhu
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai 200050, People's Republic of China
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Ngo AT, Lau KL, Quesnel JS, Aboukhalil R, Cosa G. Deposition of anionic conjugated poly(phenylenevinylene) onto silica nanoparticles via electrostatic interactions — Assembly and single-particle spectroscopy. CAN J CHEM 2011. [DOI: 10.1139/v10-141] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Fluorescent nanoparticles were prepared via adsorption of the conjugated polyelectrolyte poly[5-methoxy-2-(3-sulfopropoxy)-1,4-phenylenevinylene] (MPS-PPV) onto 50 and 100 nm aminosilane functionalized silica beads. The particles were investigated via ensemble and single-molecule or -particle spectroscopy techniques to quantify the effect of the silica bead core on the exciton migration efficiency within the polymer. Ensemble emission spectra and ensemble fluorescence quenching studies with methyl viologen are consistent with good exciton migration along the polymer in the polymer-coated bead. The silica nanobead scaffolding preserves the sensitivity of the free polymer and provides a controllable architecture that minimizes nonspecific interactions. Single-particle spectroscopy studies were conducted on particles immobilized onto the positively charged surface of glass cover slips. Particle immobilization enabled us to monitor the effect of oxygen scavenger solutions on individual particles by changing the surrounding solution. The intensity–time trajectories of individual beads provide a mechanism of signal transduction with potential applications in multiplexing studies. Hundreds of individual beads can be imaged in a rapid parallel fashion.
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Affiliation(s)
- An T. Ngo
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Centre for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Bldg, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
| | - Kai L. Lau
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Centre for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Bldg, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
| | - Jeffrey S. Quesnel
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Centre for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Bldg, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
| | - Robert Aboukhalil
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Centre for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Bldg, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
| | - Gonzalo Cosa
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
- Centre for Self-Assembled Chemical Structures (CSACS/CRMAA), McGill University, Otto Maass Bldg, 801 Sherbrooke Street West, Montreal, QC H3A 2K6, Canada
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Kaseyama T, Wakabayashi R, Shinkai S, Kaneko K, Takeuchi M. Alternating Arrays of Different Conjugated Polymers Utilizing a Synthetic Cross-Linker. Chemistry 2011; 17:1793-7. [DOI: 10.1002/chem.201002675] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2010] [Indexed: 11/09/2022]
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Li H, Wang J, Pan Z, Cui L, Xu L, Wang R, Song Y, Jiang L. Amplifying fluorescence sensing based on inverse opal photonic crystal toward trace TNT detection. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm02554b] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Sui L, Huang L, Podsiadlo P, Kotov NA, Kieffer J. Brillouin Light Scattering Investigation of the Mechanical Properties of Layer-by-Layer Assembled Cellulose Nanocrystal Films. Macromolecules 2010. [DOI: 10.1021/ma1016488] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- L. Sui
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - L. Huang
- Department of Materials Science and Engineering, Rensselaer, Troy, New York 12180, United States
| | - P. Podsiadlo
- Argonne National Laboratory Center for Nanoscale Materials, Argonne, Illinois 60439, United States
| | - N. A. Kotov
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
- Department of Chemical Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - J. Kieffer
- Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, United States
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Levine M, Song I, Andrew TL, Kooi SE, Swager TM. Photoluminescent energy transfer from poly(phenyleneethynylene)s to near-infrared emitting fluorophores. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24123] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Deng C, He Q, He C, Shi L, Cheng J, Lin T. Conjugated Polymer−Titania Nanoparticle Hybrid Films: Random Lasing Action and Ultrasensitive Detection of Explosive Vapors. J Phys Chem B 2010; 114:4725-30. [DOI: 10.1021/jp9117198] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Changmin Deng
- Shanghai Institute of Microsystem and Information Technology and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200050, China, and Centre for Material and Fibre Innovation, Deakin University, Geelong VIC 3217, Australia
| | - Qingguo He
- Shanghai Institute of Microsystem and Information Technology and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200050, China, and Centre for Material and Fibre Innovation, Deakin University, Geelong VIC 3217, Australia
| | - Chao He
- Shanghai Institute of Microsystem and Information Technology and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200050, China, and Centre for Material and Fibre Innovation, Deakin University, Geelong VIC 3217, Australia
| | - Liqi Shi
- Shanghai Institute of Microsystem and Information Technology and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200050, China, and Centre for Material and Fibre Innovation, Deakin University, Geelong VIC 3217, Australia
| | - Jiangong Cheng
- Shanghai Institute of Microsystem and Information Technology and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200050, China, and Centre for Material and Fibre Innovation, Deakin University, Geelong VIC 3217, Australia
| | - Tong Lin
- Shanghai Institute of Microsystem and Information Technology and Graduate School of the Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200050, China, and Centre for Material and Fibre Innovation, Deakin University, Geelong VIC 3217, Australia
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Tennyson EG, He S, Osti NC, Perahia D, Smith RC. Luminescent phosphonium polyelectrolyte prepared from a diphosphine chromophore: synthesis, photophysics, and layer-by-layer assembly. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01430c] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Luminescence Amplification Strategies Integrated with Microparticle and Nanoparticle Platforms. LUMINESCENCE APPLIED IN SENSOR SCIENCE 2010; 300:51-91. [DOI: 10.1007/128_2010_99] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Kelly TL, Wolf MO. Template approaches to conjugated polymer micro- and nanoparticles. Chem Soc Rev 2010; 39:1526-35. [DOI: 10.1039/b914333p] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Deng C, Gong P, He Q, Cheng J, He C, Shi L, Zhu D, Lin T. Highly fluorescent TPA-PBPV nanofibers with amplified sensory response to TNT. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.10.060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Li J, Zhu B, Shao Y, Liu X, Yang X, Yu Q. Construction of anticoagulant poly (lactic acid) films via surface covalent graft of heparin-carrying microcapsules. Colloids Surf B Biointerfaces 2009; 70:15-9. [DOI: 10.1016/j.colsurfb.2008.12.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Revised: 11/13/2008] [Accepted: 12/01/2008] [Indexed: 11/30/2022]
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28
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Sakai S, Yamada Y, Yamaguchi T, Ciach T, Kawakami K. Surface immobilization of poly(ethyleneimine) and plasmid DNA on electrospun poly(L-lactic acid) fibrous mats using a layer-by-layer approach for gene delivery. J Biomed Mater Res A 2009; 88:281-7. [PMID: 18260146 DOI: 10.1002/jbm.a.31870] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The method of coating electrospun ultrafine poly(L-lactic acid) fibers with DNA, by building up polyelectrolyte layer(s) of poly(ethyleneimine) (PEI) and plasmid DNA using an electrostatic layer-by-layer deposition method, for gene delivery is presented. The pGL3 encoding luciferase was applied as plasmid DNA. The quantity of pGL3 immobilized on individual fibers increased with increasing pGL3 concentration in the immersion solution (0.017-0.870 mg/mL) and increasing bilayer number of PEI/pGL3 (single-triple). With the exception of one specimen prepared under the condition 0.870 mg/mL pGL3 solution and double PEI/pGL3 layers, the transfection efficiency of COS-7 cells, defined by the ratio of fluorescence intensity (resulting from the presence of luciferase) with respect to the quantity of cellular protein on the fibrous mat increased with increasing quantity of pGL3 on the fibers. In addition to the ease of controlling the quality of polyelectrolyte bilayer(s) by simply changing the concentrations of substances and number of immersing cycles, the features of the electrospun fibrous mat such as a very large surface-to-volume ratio and flexibility, could potentially be employed as a strategy for gene therapy combined with tissue engineering technology.
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Affiliation(s)
- Shinji Sakai
- Department of Chemical Engineering, Faculty of Engineering, Kyushu University, Fukuoka, Japan.
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29
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Liu QH, Liu J, Guo JC, Yan XL, Wang DH, Chen L, Yan FY, Chen LG. Preparation of polystyrene fluorescent microspheres based on some fluorescent labels. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b816963b] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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30
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Chi C, Mikhailovsky A, Bazan GC. Design of Cationic Conjugated Polyelectrolytes for DNA Concentration Determination. J Am Chem Soc 2007; 129:11134-45. [PMID: 17705479 DOI: 10.1021/ja072471s] [Citation(s) in RCA: 105] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cationic conjugated polyelectrolytes poly110 and poly120 were designed, synthesized, and characterized with the anticipation of function in the determination of double-stranded DNA concentration [dsDNA]. Their structures contain a pi-delocalized optically active backbone composed of phenylene-fluorene segments copolymerized with 2,1,3-benzothiadiazole (BT) units and charged pendant groups that allow excellent solubility in water. The subscript in poly1x refers to the molar percent of BT units in the chain. Addition of dsDNA to poly110 or poly120 results in a change in the color of emission from blue to green. These spectral changes can be treated to obtain the parameter delta, which can be used to generate calibration curves that indicate [dsDNA]. Analysis of photoluminescence spectra reveals that dsDNA addition gives rise to more efficient FRET from blue emitting segments to the BT sites, an increase in the BT emission quantum yield, and partial quenching of the phenylene-fluorene segments. Studies were also carried out to maximize the range of [dsDNA] determination. We find that by combining the response from two different initial concentrations of poly110, it is possible to generate calibration curves that respond with a difference in [dsDNA] of over 7 orders of magnitude.
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Affiliation(s)
- Chunyan Chi
- Department of Chemistry, Institute for Polymers and Organic Solids, University of California, Santa Barbara, California 93106, USA
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Ogawa K, Chemburu S, Lopez GP, Whitten DG, Schanze KS. Conjugated polyelectrolyte-grafted silica microspheres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:4541-8. [PMID: 17343398 DOI: 10.1021/la0630108] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
A direct method for preparation of conjugated polymer-grafted silica particles is reported. Silica particles (0.3 and 5 mum diameter) are treated with a 3-(trimethoxysilyl)propylamine derivative that is functionalized with an aryl iodide unit. A solution step-growth polymerization reaction is performed in solution that contains a dispersion of the aryl iodide-functionalized particles. The reaction is a Pd(0)-catalyzed (Sonogashira) A-B-type polymerization of an oligo(ethylene glycol)-fuctionalized diiodobenzene and a bis(propyloxy)sulfonate-substituted diethynylbenzene. The overall process affords silica particles that feature a surface graft layer of an anionic poly(phenylene ethynylene)-type conjugated polyelectrolyte. The particle surface modification process was monitored by infrared (FTIR) spectroscopy, and the polymer-grafted silica particles were characterized by thermogravimetric analysis, scanning and transmission electron microscopy, confocal fluorescence microscopy, and absorption and fluorescence spectroscopy. The conjugated polyelectrolyte-grafted silica particles are highly fluorescent, and a Stern-Volmer quenching study of the particles' fluorescence with electron-transfer- and energy-transfer-type quenchers shows that the quenching response depends on the type of quenching mechanism.
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Affiliation(s)
- Katsu Ogawa
- Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, USA
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Thomas SW, Joly GD, Swager TM. Chemical Sensors Based on Amplifying Fluorescent Conjugated Polymers. Chem Rev 2007; 107:1339-86. [PMID: 17385926 DOI: 10.1021/cr0501339] [Citation(s) in RCA: 2937] [Impact Index Per Article: 172.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Samuel W Thomas
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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Xu JF, Wang CY, Lai GQ, Shen YJ. Synthesis and characterization of phenylacetylene-terminated poly(silyleneethynylene-4,4′-phenylethereneethynylene)s. Eur Polym J 2007. [DOI: 10.1016/j.eurpolymj.2006.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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34
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Liao JH, Swager TM. Quantification of amplified quenching for conjugated polymer microsphere systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:112-5. [PMID: 17190492 DOI: 10.1021/la0616911] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A series of nonaggregating carboxylate-functionalized poly(phenylene ethynylene)s (PPEs) have been synthesized for immobilization via electrostatic adsorption onto Eu3+-polystyrene microspheres with a mean diameter of 0.2 microm. This system is shown to constitute a ratiometric system that measures fluorescence quenching with high fidelity. The fluorescence quenching properties of the polymer-coated particles in response to methyl viologen and a naphthyl-functionalized viologen have been investigated in aqueous solutions to study the influence of electrostatic and hydrophobic interactions with pentiptycene-incorporated as well as macrocycle-containing polymers.
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Affiliation(s)
- Jessica H Liao
- Department of Materials Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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35
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Wang Y, Liu B. Silica nanoparticle assisted DNA assays for optical signal amplification of conjugated polymer based fluorescent sensors. Chem Commun (Camb) 2007:3553. [DOI: 10.1039/b705936a] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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