57 research outputs found
Effect of Laser Fluence on Laser Desorption Mass Spectra of Organothiol Self-Assembled Monolayers on Gold
No full textX-ray photoelectron spectroscopy analysis of gold surfaces after removal of thiolated DNA oligomers by ultraviolet/ozone treatment
No full textWell-ordered films of molecular DNA can be formed by the attachment of thiolated DNA oligonucleotides to a supporting gold substrate. The gold substrate represents a significant fraction of the total cost of preparing such films, and it is thus important to determine whether such substrates can be reused. Here, we investigate with X-ray photoelectron spectroscopy the suitability of UV/ozonolysis previously employed to remove alkanethiols from gold, for removing 40-mer, single- and double-stranded synthetic DNA. We find that while UV/O3 can indeed remove thiolated DNA from gold slides, the treatment times required permit the implantation of additional organic contaminants
Polarized Surface Enhanced Raman and Absorbance Spectra of Aligned Silver Nanorod Arrays
No full textOzonolysis Is the Primary Cause of UV Photooxidation of Alkanethiolate Monolayers at Low Irradiance
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Response of Neisseria gonorrhoeae to iron limitation: alterations in expression of membrane proteins without apparent siderophore production
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