92 research outputs found
Synthesis, isolation, and redispersion of resorcinarene-capped anatase TiO2 nanoparticles in nonaqueous solvents
No full textSynthesis of 28-membered macrocyclic polyammonium cations functionalized gold nanoparticles and their potential for sensing nucleotides
No full textA macrocyclic polyamine as an anion receptor in the capillary electrochromatographic separation of carbohydrates
No full textPhase transfer of gold nanoparticles from aqueous to organic solution containing resorcinarene
No full textBioconjugation of 32-macrocyclic polyammonium cations-functionalized gold nanoparticles with BSA
No full textCapillary electrochromatographic separation of peptides using a macrocyclic polyamine for molecular recognition
No full textChemistry of azopyrimidines: Synthesis, spectral characterization, electrochemistry and X-ray crystal structure of bis[2-(arylazo)pyrimidine] complexes of copper(I)
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Novel stationary phase for complexation gas chromatography originating from ionic liquid and metallomesogen
No full textEnhanced discrimination of DNA molecules in nanofluidic channels through multiple measurements
Full text linkAuthor Manuscript 2013 March 21.Nanofluidic sensing elements have been the focus of recent experiments for numerous applications ranging from nucleic acid fragment sizing to single-molecule DNA sequencing. These applications critically rely on high measurement fidelity, and methods to increase resolution are required. Herein, we describe fabrication and testing of a nanochannel device that enhances measurement resolution by performing multiple measurements (>100) on single DNA molecules. The enhanced measurement resolution enabled length discrimination between a mixture of λ-DNA (48.5 kbp) and T7 DNA (39.9 kbp) molecules, which were detected as transient current changes during translocation of the molecules through the nanochannel. As long DNA molecules are difficult to resolve quickly and with high fidelity with conventional electrophoresis, this approach may yield potentially portable, direct electrical sizing of DNA fragments with high sensitivity and resolution.National Institutes of Health (U.S.) (Grant R21EB009180)United States. Air Force (Contract FA8721-05-C- 0002
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