A Genetic Analysis of Carbon-Nanotube-Binding Proteins.
Brown S, Jespersen TS, Nygård J.
Department of Biology and Nanoscience Center, University of Copenhagen Ole Maaløes Vej 5, 2200 Copenhagen (Denmark).
Controlling Co-tunneling Currents in Nanoparticle Networks Using Spin-Polarized Wire Molecules.
Nickels P, Matsushita MM, Minamoto M, Komiyama S, Sugawara T.
Department of Basic Science, Graduate School of Arts and Sciences The University of Tokyo Komaba Meguro, Tokyo 153-8902 (Japan).
Electrical Characterization of the Mutual Influences Between Gas Molecules and Single-Walled Carbon Nanotubes.
Liang CW, Sahakalkan S, Roth S.
Max-Planckâ€Institute for Solid State Research Heisenbergstr. 1, 70569 Stuttgart, Germany.
Zinc Porphyrin-Driven Assembly of Gold Nanofingers.
Nanofingers of gold covered by porphyrins are prepared by a combination of atomic manipulation and surface self-organization. A submonolayer of zinc(II) 5,10,15,20-tetrakis(4-tert-butylphenyl)-porphyrin (ZnTBPP) axially ligated to a self-assembled monolayer of 4-aminothiophenol (4-ATP) on Au(111) is prepared and studied using a combination of ultrahigh vacuum techniques. Under the […]
Carbon isotope determination for separate components of heterogeneous materials using coupled thermogravimetric analysis/isotope ratio mass spectrometry.
A gas-tight thermal analysis system (Netzsch STA 449C Jupiter) has been connected to an isotope ratio mass spectrometer (PDZ Europa 20-20) via an interface containing an oxidizing furnace, water trap, and gas-sampling valve. Using this system, delta(13)C […]
Spiking of serum specimens with exogenous reporter peptides for mass spectrometry based protease profiling as diagnostic tool.
Serum is a difficult matrix for the identification of biomarkers by mass spectrometry (MS). This is due to high-abundance proteins and their complex processing by a multitude of endogenous proteases making rigorous standardisation difficult. Here, we […]
Performance optimisation of a new-generation orthogonal-acceleration quadrupole-time-of-flight mass spectrometer.
Orthogonal-acceleration quadrupole time-of-flight (oa-QTOF) mass spectrometers, employed for accurate mass measurement, have been commercially available for well over a decade. A limitation of the early instruments of this type was the narrow ion abundance range over which accurate mass measurements could be made with […]
Determination of organic anions in atmospheric aerosol samples by capillary electrophoresis after reversed pre-electrophoresis.
This work presents the determination of low-molecular-mass (LMM) organic acids by CE after extraction with MeOH and preconcentration by evaporation. The interference arising from the simultaneous concentration of fast mobile anions (chloride, nitrate, and sulfate) at levels 200 times […]
On-line measurements of delta(15)N in biological fluids by a modified continuous-flow elemental analyzer with an isotope-ratio mass spectrometer.
A modified continuous-flow elemental analyzer coupled to an isotope-ratio mass spectrometer (modified EA-IRMS) was tested for on-line delta(15)N measurement on urea solution and biological fluids (e.g. urine). The elemental analyzer configuration was adapted by adding […]
Detection of carbonyl-modified proteins in interfibrillar rat mitochondria using N\’-aminooxymethylcarbonylhydrazino-D-biotin as an aldehyde/keto-reactive probe in combination with Western blot analysis and tandem mass spectrometry.
There is now a large body of supporting data available that links oxidative modifications of proteins to a large number of diseases, degenerative disorders and aging. However, the detailed […]
