Institution
Agilent Technologies
Company•Santa Clara, California, United States•
About: Agilent Technologies is a company organization based out in Santa Clara, California, United States. It is known for research contribution in the topics: Signal & Mass spectrometry. The organization has 7398 authors who have published 11518 publications receiving 262410 citations. The organization is also known as: Agilent Technologies, Inc..
Papers published on a yearly basis
Papers
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TL;DR: The result suggests that surface effects could be dominant over the "bulk" properties of small diameter wires.
Abstract: Germanium nanowires (GeNWs) with p- and n-dopants were synthesized by chemical vapor deposition (CVD) and were used to construct complementary field-effect transistors (FETs). Electrical transport and X-ray photoelectron spectroscopy (XPS) data are correlated to glean the effects of Ge surface chemistry to the electrical characteristics of GeNWs. Large hysteresis due to water molecules strongly bound to GeO(2) on GeNWs is revealed. Different oxidation behavior and hysteresis characteristics and opposite band bending due to Fermi level pinning by interface states between Ge and surface oxides are observed for p- and n-type GeNWs. Vacuum annealing above 400 degrees C is used to remove surface oxides and eliminate hysteresis in GeNW FETs. High-kappa dielectric HfO(2) films grown on clean GeNW surfaces by atomic layer deposition (ALD) using an alkylamide precursor is effective in serving as the first layer of surface passivation. Lastly, the depletion length along the radial direction of nanowires is evaluated. The result suggests that surface effects could be dominant over the "bulk" properties of small diameter wires.
334 citations
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TL;DR: Comparisons made between helium and nitrogen-derived CCS measurements demonstrate that nitrogen CCS values are systematically larger than helium values; however, general separation trends between chemical classes are retained regardless of the drift gas, underscore that, for the highest CCS accuracy, care must be exercised when utilizing helium-derivedCCS values to calibrate measurements obtained in nitrogen.
Abstract: Ion mobility-mass spectrometry measurements which describe the gas-phase scaling of molecular size and mass are of both fundamental and pragmatic utility. Fundamentally, such measurements expand our understanding of intrinsic intramolecular folding forces in the absence of solvent. Practically, reproducible transport properties, such as gas-phase collision cross-section (CCS), are analytically useful metrics for identification and characterization purposes. Here, we report 594 CCS values obtained in nitrogen drift gas on an electrostatic drift tube ion mobility-mass spectrometry (IM-MS) instrument. The instrument platform is a newly developed prototype incorporating a uniform-field drift tube bracketed by electrodynamic ion funnels and coupled to a high resolution quadrupole time-of-flight mass spectrometer. The CCS values reported here are of high experimental precision (±0.5% or better) and represent four chemically distinct classes of molecules (quaternary ammonium salts, lipids, peptides, and carbohyd...
334 citations
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TL;DR: It is demonstrated here using immunoassay and immunohistochemical techniques that apelin is localized primarily in the endothelium of the coronary arteries and is found at a higher concentration in cardiac tissue after mechanical offloading, implying an important paracrine signaling pathway in the heart.
Abstract: Background— Apelin is among the most potent stimulators of cardiac contractility known. However, no physiological or pathological role for apelin–angiotensin receptor-like 1 (APJ) signaling has ever been described. Methods and Results— We performed transcriptional profiling using a spotted cDNA microarray with 12 814 unique clones on paired samples of left ventricle obtained before and after placement of a left ventricular assist device in 11 patients. The significance analysis of microarrays and a novel rank consistency score designed to exploit the paired structure of the data confirmed that natriuretic peptides were among the most significantly downregulated genes after offloading. The most significantly upregulated gene was the G-protein–coupled receptor APJ, the specific receptor for apelin. We demonstrate here using immunoassay and immunohistochemical techniques that apelin is localized primarily in the endothelium of the coronary arteries and is found at a higher concentration in cardiac tissue aft...
333 citations
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TL;DR: It is shown that the conjugate of arachidonic acid and glycine (N-arachidonylglycine (NAGly) is present in bovine and rat brain as well as other tissues and that it suppresses tonic inflammatory pain.
333 citations
Authors
Showing all 7402 results
Name | H-index | Papers | Citations |
---|---|---|---|
Hongjie Dai | 197 | 570 | 182579 |
Zhuang Liu | 149 | 535 | 87662 |
Jie Liu | 131 | 1531 | 68891 |
Thomas Quertermous | 103 | 405 | 52437 |
John E. Bowers | 102 | 1767 | 49290 |
Roy G. Gordon | 89 | 449 | 31058 |
Masaru Tomita | 76 | 677 | 40415 |
Stuart Lindsay | 74 | 347 | 22224 |
Ron Shamir | 74 | 319 | 23670 |
W. Richard McCombie | 71 | 144 | 64155 |
Tomoyoshi Soga | 71 | 392 | 21209 |
Michael R. Krames | 65 | 321 | 18448 |
Shabaz Mohammed | 64 | 188 | 17254 |
Geert Leus | 62 | 609 | 19492 |
Giuseppe Gigli | 61 | 541 | 15159 |