Biological Templated Synthesis of Water-Soluble Conductive Polymeric Nanowires

Niu, Zhongwei; Liu, J.; Lee, L. Andrew; Bruckman, Michael A.; Zhao, Donggao; Koley, Goutam; Wang, Qin

doi:10.1021/nl072134h

Cited by 164 publications

(138 citation statements)

References 40 publications

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“…First, 1D composite fibres, denoted PTLF, were prepared according to our previous work. 7 Incubation of aniline and TMV at neutral pH resulted in the PANi-coated TMV fibres (denoted as PANi-TMV). The formation of highly branched PANi at neutral reaction pH prevented lateral association of PANi-TMV fibres due to the increase of steric repulsion (Fig.…”

Section: Resultsmentioning

confidence: 99%

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Tobacco mosaic virus templated synthesis of one dimensional inorganic–polymer hybrid fibres

et al. 2009

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Inorganic-polymer hybrid nanofibres were prepared by using a rod-like tobacco mosaic virus (TMV) as a template. With tetraethylorthosilicate (TEOS) as a precursor, long silica-coated TMV fibres were formed via a head-to-tail assembly, which showed a substantial increase of the elastic modulus. Furthermore, homogenous titania-TMV hybrid fibres could be prepared using polyaniline-coated TMV fibres as a template, which were used to form a composite film that was able to sense liquefied petroleum gases.

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Section: Resultsmentioning

confidence: 99%

“…7,15 In this paper, we focus on the synthesis and characterization of SiO 2 -TMV and titania-conducting polymer-TMV composite nanofibres using TMV as a template.…”

Section: Introductionmentioning

confidence: 99%

Tobacco mosaic virus templated synthesis of one dimensional inorganic–polymer hybrid fibres

et al. 2009

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“…Furthermore, mixing TMV with aniline and a mild oxidant resulted in highly uniform, micron length nanofi bers measuring approximately 22 nm in diameter, likely due to the non-covalent interactions between aniline and TMV [30]. These nanofibers were readily dispersed in water and addition of dopants increased the conductivity of the composite nanofi bers [31].…”

Section: Development Of Functional Materials Based On Non-covalent Inmentioning

confidence: 99%

Viruses and virus-like protein assemblies—Chemically programmable nanoscale building blocks

2009

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Supramolecular proteins are generated using a limited set of twenty amino acids, but have distinctive functionalities which arise from the sequential arrangement of amino acids configured to exquisite threedimensional structures. Viruses, virus-like particles, ferritins, enzyme complexes, cellular micro-compartments, and other supramolecular protein assemblies exemplify these systems, with their precise arrangements of tens to hundreds of molecules into highly organized scaffolds for nucleic acid packaging, metal storage, catalysis or sequestering reactions at the nanometer scale. These versatile protein systems, dubbed as bionanoparticles (BNPs), have attracted materials scientists to seek new opportunities with these pre-fabricated templates in a wide range of nanotechnology-related applications. Here, we focus on some of the key modifi cation strategies that have been utilized, ranging from basic protein conjugation techniques to more novel strategies, to expand the functionalities of these multimeric protein assemblies. Ultimately, in combination with molecular cloning and sophisticated chemistries, these BNPs are being incorporated into many applications ranging from functional materials to novel biomedical drug designs.

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“…solution and was found to be crucial for the success of the synthesis [36]. In addition, PSS served as an acidic dopant to enhance the conductivity of PANi [27,28].…”

Section: Nano Researchmentioning

confidence: 99%

Bacteriophage M13 as a scaffold for preparing conductive polymeric composite fibers

et al. 2008

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Using biological templates to build one-dimensional functional materials holds great promise in developing nanosized electrical devices, sensors, catalysts, and energy storage units. In this communication, we report a versatile assembly process for the preparation of water-soluble conductive polyaniline (PANi)/M13 composite nanowires by employing the bacteriophage M13 as a template. The surface lysine residues of M13 can be derivatized with carboxylic groups to improve its binding ability to the aniline; the resulting modifi ed M13 is denoted as m-M13. Highly negatively-charged poly(sulfonated styrene) was used both as a dopant acid and a stabilizing agent to enhance the stability of the composite fi bers in aqueous solution. A transparent solution of the conductive PANi/m-M13 composite fi bers can be readily obtained without any further purifi cation step. The fi bers can be easily fabricated into thin conductive fi lms due to their high aspect ratio and good solubility in aqueous solution. This synthesis discloses a unique and versatile way of using bionanorods to produce composite fi brillar materials with narrow dispersity, high aspect ratio, and high processibility, which may have many potential applications in electronics, optics, sensing, and biomedical engineering. KEYWORDSBacteriophage M13, nanofi ber, conductive polymer, self-assembly, bioconjugationThe controlled growth and fabrication of onedimensional (1-D) nanostructured objects such as fibers, tubes, and rods, is an emerging research area due to their potential applications in developing nanosized electric devices, sensors, catalysts, and energy storage units Previously we have shown that by using TMV as the template, 1-D polyaniline/TMV composite nanowires can be prepared by a head-to-tail selfassembly process of TMV [13,14] M13 is a cylindrical protein capsid consisting of 2700 identical major coat proteins as well as several minor coat proteins surrounding a single-stranded DNA genome. The rod-like M13 is 880 nm in length and 6.6 nm in diameter and one of the most studied rod-like viruses for developing new biocomposite materials [35]. Compared to the native TMV, a rod-like plant virus with a length of 300 nm and a diameter of 18 nm, the advantages of M13 are that it has a smaller diameter and higher aspect ratio, readily forms anisotropic thin fi lms and is much more pliable than TMV in solution. Thus, with M13 as a template, it should be possible to prepare more elastic composite fibers with smaller diameter, and better processability. Figure 1 shows a schematic illustration of the preparation of composite fi bers and a corresponding conductive thin fi lm of the PANi/M13 composite. We report here that conductive PANi/M13 composite nanowires can be readily obtained by incubation of M13 with poly(sulfonated styrene) (PSS) and ammonium persulfate (APS).Unmodified M13 was first used as the template to prepare PANi/M13 composite fi bers; however, we found that it was diffi cult to control the morphology of the final composite fibers due to...

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Biological Templated Synthesis of Water-Soluble Conductive Polymeric Nanowires

Cited by 164 publications

References 40 publications

Tobacco mosaic virus templated synthesis of one dimensional inorganic–polymer hybrid fibres

Tobacco mosaic virus templated synthesis of one dimensional inorganic–polymer hybrid fibres

Viruses and virus-like protein assemblies—Chemically programmable nanoscale building blocks

Bacteriophage M13 as a scaffold for preparing conductive polymeric composite fibers

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