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Viruses Fall into Line: Synthesis of Composite Nanofibers by Controlled Self-assembly of Tobacco Mosaic Virus Qian Wang, University South Carolina Research.

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Presentation on theme: "Viruses Fall into Line: Synthesis of Composite Nanofibers by Controlled Self-assembly of Tobacco Mosaic Virus Qian Wang, University South Carolina Research."— Presentation transcript:

1 Viruses Fall into Line: Synthesis of Composite Nanofibers by Controlled Self-assembly of Tobacco Mosaic Virus Qian Wang, University South Carolina Research Foundation, DMR 0706431 A versatile assembly process has been developed to prepare water-soluble conductive polyaniline(PANi)/virus composite nanowires using tobacco mosaic virus (TMV) as template. Highly negative-charged poly(sulfonated styrene) (PSS) was used both as a dopant acid and a stabilizing agent to improve the stability of the composite fibers in aqueous solution. The resulted fibers are highly conductive. -Chem. Commun. 2006, 3019-3021. -Langmuir 2007, 23, 6719-6724. -Langmuir 2007, 23, 11157-11163. -Nano Lett. 2007, 7, 3729-3733. -Nano Research. 2008, 1, 235-241. -J. Am. Chem. Soc, 2010, 132, 11036-11038. -J. Mater. Chem. 2010, 20, 5715-5719. -Angew. Chem. Int. Ed. 2010, 49, 868-872. Figure: TEM images of a) wt-TMV; b) PSS/PANi/TMV nanowire; c) PSS/PANi/TMV composite nanowire from the pH 4 reaction; d) PANi/TMV long fiber (LF); e) PSS/PANi/LF; and f) an enlarged image of PSS/PANi/LF shows a average diameter of 28 nm.

2 Viruses Fall into Line: Synthesis of Composite Nanofibers by Controlled Self-assembly of Tobacco Mosaic Virus Qian Wang, University South Carolina Research Foundation, DMR 0706431 Bacteriophage M13 can also be used as template to produce conductive nanofibers. The fibers can be easily fabricated into thin conductive films due to the high aspect ratio and good solubility in aqueous solution. This synthesis discloses a unique and versatile way of using bionanorods to produce composite fibrillar materials with narrow dispersity, high aspect ratio and high processibility, which may have many potential applications in electronics, optics, sensing and biomedical engineering. A home made gas sensor From the conductive fibers

3 Broad Impact Highlights of Bionanoparticle Technology Qian Wang, University South Carolina Research Foundation, DMR 0706431 “Adventure of BioNanotechnology” for High School Students: More than 120 high school students from South Carolina, North Carolina, Georgia, and Florida attended this program since 2004. The program includes lectures, experiments, field trips and discussion. Lecture Lab (Making Microbial Fuel Cells) Presentation (with the presence of family members – see some proud parents in the back row) Presentation (Cancer/Nanotech)

4 Broad Impact Highlights of Bionanoparticle Technology Qian Wang, University South Carolina Research Foundation, DMR 0706431 “Open Laboratory for Bionanoparticle Technology (OLBT)” for multidisciplinary research and outreach: Supported by NSF, more than 40undergraduate students and 15 graduate students were trained in OLBT. OLBT also open for the “Citizen School of Nanotechnology”. Groups (including 3 undergraduate students) at SERMACS Meeting Citizen School Visitors Preston Thompson - Authored two papers already with us!!!! - One of many undergraduates in our team

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