Water-soluble anionic poly(p-phenylene vinylenes) with high luminescence

Srinivas, Anupama R. Gulur; Kerr-Phillips, Thomas; Peng, Hui; Barker, David; Travaš-Sejdić, Jadranka

doi:10.1039/c3py21090a

Cited by 23 publications

(31 citation statements)

References 53 publications

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“…The undoped form of poly( p -phenylene) (PPP) is an insoluble powder that shows interesting thermal, optical electrical and chemical properties. Its ICPs, which have low molecular weights and with modified chains, are soluble in many solvents [ 116 , 117 , 118 , 119 ]. They may be synthesized by electrochemical [ 120 ] and chemical methods [ 116 , 121 ], for example, polycondensation with the Suzuki coupling method or catalytic polymerization.…”

Section: Synthesis Physicochemical and Biological Properties Of Cmentioning

confidence: 99%

Conducting Polymers, Hydrogels and Their Composites: Preparation, Properties and Bioapplications

2019

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This review is focused on current state-of-the-art research on electroactive-based materials and their synthesis, as well as their physicochemical and biological properties. Special attention is paid to pristine intrinsically conducting polymers (ICPs) and their composites with other organic and inorganic components, well-defined micro- and nanostructures, and enhanced surface areas compared with those of conventionally prepared ICPs. Hydrogels, due to their defined porous structures and being filled with aqueous solution, offer the ability to increase the amount of immobilized chemical, biological or biochemical molecules. When other components are incorporated into ICPs, the materials form composites; in this particular case, they form conductive composites. The design and synthesis of conductive composites result in the inheritance of the advantages of each component and offer new features because of the synergistic effects between the components. The resulting structures of ICPs, conducting polymer hydrogels and their composites, as well as the unusual physicochemical properties, biocompatibility and multi-functionality of these materials, facilitate their bioapplications. The synergistic effects between constituents have made these materials particularly attractive as sensing elements for biological agents, and they also enable the immobilization of bioreceptors such as enzymes, antigen-antibodies, and nucleic acids onto their surfaces for the detection of an array of biological agents. Currently, these materials have unlimited applicability in biomedicine. In this review, we have limited discussion to three areas in which it seems that the use of ICPs and materials, including their different forms, are particularly interesting, namely, biosensors, delivery of drugs and tissue engineering.

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Section: Synthesis Physicochemical and Biological Properties Of Cmentioning

confidence: 99%

Conducting Polymers, Hydrogels and Their Composites: Preparation, Properties and Bioapplications

2019

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“…The F fl of 2 in dichloromethane is consistent with its analogous polyvinylene derivatives such as 4, whose emission yields are approximately 50% in dichloromethane. 31,32 It is worthy to note that although the fluorescence of derivatives such as 4 has been extensively examined, neither their solvatochromic nor their polarity effects on the emission yields have been extensively examined. This is surprising, since polar protic solvents are known to hydrogen-bond with fluorophores and promote other fluorophore-solvent interactions that quench the fluorescence.…”

Section: Resultsmentioning

confidence: 99%

Unusually high fluorescence quantum yield of a homopolyfluorenylazomethine – towards a universal fluorophore

Mallet

Bolduc

Bishop

et al. 2014

Phys. Chem. Chem. Phys.

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The absolute fluorescence quantum yield (Φfl) of a polyfluorenyl azomethine homopolymer was measured as a function of solvent polarity. The solvent induced and temperature dependent fluorescence of the homopolymer were also investigated and they were compared to the corresponding monomer and copolymer. The Φfl of the homopolymer was consistent (45-70%), regardless of solvent polarity with Stokes shifts up to 7460 cm(-1) in ethanol. In contrast, the Φfl of its corresponding monomer decreased from 60% in ethanol to 1% in toluene, whereas a Φfl < 5% for its analogous copolymer was measured. Moderate fluorescence yields (Φfl ≈ 25%) were also possible in thin film when co-depositing the homopolymer with PMMA. Cryofluorescence was used to probe the excited state deactivation modes. Deactivation by internal conversion was found to compete with fluorescence. The fluorescence deactivation pathways of the homopolymer and its corresponding monomer could be suppressed at 77 K, resulting in fluorescence turn-on. Both fluorophores were found to detect nitroaromatics.

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“…The undoped form of poly(p-phenylene) (PPP) is an insoluble powder that shows interesting thermal, optical electrical and chemical properties. Its ICPs, which have low molecular weights and with modified chains, are soluble in many solvents [110], [111], [112], [113]. They may be synthesized by electrochemical [114] and chemical methods [110], [115], for example, polycondensation with the Suzuki coupling method or catalytic polymerization.…”

Section: Electronically Conducting Polymers (Intrinsically Conductingmentioning

confidence: 99%

Conducting Polymers, Hydrogels and Their Composites: Preparation, Properties and Bioapplications

Tomczykowa

Płońska‐Brzezińska

2019

Preprint

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This review is focused on current state-of-the-art research on electroactive-based materials and their synthesis, as well as their physicochemical and biological properties. Special attention is paid to pristine intrinsically conducting polymers (ICPs) and their composites with other organic and inorganic components, well-defined micro- and nanostructures, and enhanced surface areas compared with those of conventionally prepared ICPs. Hydrogels, due to their defined porous structures and being filled with aqueous solution, offer the ability to increase the amount of immobilized chemical, biological or biochemical molecules. When other components are incorporated into ICPs, the materials form composites; in this particular case, they form conductive composites. The design and synthesis of conductive composites result in the inheritance of the advantages of each component and offer new features because of the synergistic effects between the components. The resulting structures of ICPs, conducting polymer hydrogels and their composites, as well as the unusual physicochemical properties, biocompatibility and multi-functionality of these materials, facilitate their bioapplications. The synergistic effects between constituents have made these materials particularly attractive as sensing elements for biological agents, and they also enable the immobilization of bioreceptors such as enzymes, antigen–antibodies, and nucleic acids onto their surfaces for the detection of an array of biological agents. Currently, these materials have unlimited applicability in biomedicine. In this review, we have limited discussion to three areas in which it seems that the use of ICPs and materials, including their different forms, are particularly interesting, namely, biosensors, delivery of drugs and tissue engineering.

show abstract

Water-soluble anionic poly(p-phenylene vinylenes) with high luminescence

Cited by 23 publications

References 53 publications

Conducting Polymers, Hydrogels and Their Composites: Preparation, Properties and Bioapplications

Conducting Polymers, Hydrogels and Their Composites: Preparation, Properties and Bioapplications

Unusually high fluorescence quantum yield of a homopolyfluorenylazomethine – towards a universal fluorophore

Conducting Polymers, Hydrogels and Their Composites: Preparation, Properties and Bioapplications

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