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Full-Text Articles in Chemistry

Controlled Assembly Of Rodlike Viruses With Polymers, Tao Li, Laying Wu, Nisaraporn Suthiwangcharoen, Michael A. Bruckman, Dayton Cash, Joan S. Hudson, Soumitra Ghoshroy, Qian Wang Apr 2009

Controlled Assembly Of Rodlike Viruses With Polymers, Tao Li, Laying Wu, Nisaraporn Suthiwangcharoen, Michael A. Bruckman, Dayton Cash, Joan S. Hudson, Soumitra Ghoshroy, Qian Wang

Faculty Publications

A practical method to assemble rodlike tobacco mosaic virus and bacteriophage M13 with polymers was developed, which afforded a 3D core–shell composite with morphological control.


High Resolution Single Molecule Optical Localization Of Multiple Fluorophores On Dna Origami Constructs Fluorophores On Dna Origami Constructs, Anuradha Rajulapati Jan 2009

High Resolution Single Molecule Optical Localization Of Multiple Fluorophores On Dna Origami Constructs Fluorophores On Dna Origami Constructs, Anuradha Rajulapati

Theses, Dissertations and Capstones

An ongoing challenge in the development of nanoelectronics and nanophotonics is the nondestructive, high-resolution localization in space of single molecules and multi-molecular assemblies. The apparent barrier to the use of optical microscopy at the sub-100 nm scale is the well known Abbe Limit, the diffraction limit to resolution. This laboratory has adapted a technique called Single-molecule high resolution imaging with photobleaching (SHRIMP). We have developed methods for utilizing SHRIMP for the determination of the separation of two fluorophores in single DNA origami constructs.

DNA Origami is extremely useful because it can address nanocomponents down to 2nm separation. It should be …


Silver Doped Perfluoropolyether-Urethane Coatings: Antibacterial Activity And Surface Analysis, Niall Stobie, Brendan Duffy, Steven Hinder, Patrick Mchale, Declan Mccormack Jan 2009

Silver Doped Perfluoropolyether-Urethane Coatings: Antibacterial Activity And Surface Analysis, Niall Stobie, Brendan Duffy, Steven Hinder, Patrick Mchale, Declan Mccormack

Articles

The colonisation of clinical and industrial surfaces with pathogenic microorganisms has prompted increased research into the development of effective antibacterial and antifouling coatings. There is evidence that implanted biomedical surfaces coated with metallic silver can be inactivated by hysiological fluids, thus reducing the bioactivity of the coating. In this work, we report the biofilm inhibition of Staphylococcus epidermidis using a roomtemperatureprocessedsilver dopedperfluoropolyether-urethane coating. The release of silver ions from these fluoropolymers over a six-day period inhibited bacterial encrustation – as observed by scanning electron microscopy (SEM). X-ray photoelectron spectroscopy (XPS) analysis indicated differences in carbon, fluorine and sodium surface composition …