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Search Publications

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Displaying 476 - 500 of 2538

Quantifying the Effect of Guest Binding on Host Environment

August 29, 2023
Author(s)
Angela Stelson, Zack Fishman, Jacob Pawlik, Gosia Musial, Jim Booth, Chris Long, Kathleen Schwarz, Nate Orloff, Hugh Ryan, Angela Grommet, Jonathan Nitschke, Felix Rizzuto
… microfluidic spectroscopy to quantify the hydration and ion pairing of a FeII4L4 coordination cage with a set of … guest. The impact of different guest properties on host ion pairing and hydration was determined through microwave … of the guest has the greatest impact on the solvent and ion-pairing dynamics surrounding the host. We also observed …

The Effect of Substrate Material on Silver Nanoparticle Antimicrobial Efficacy

December 1, 2010
Author(s)
Benita Dair, Dave M. Saylor, T. E. Cargal, Grace R. French, Kristen M. Kennedy, Rachel S. Casas, Jonathan E. Guyer, James A. Warren, Steven K. Pollack
… bulk counterparts may be attributed to an increased silver ion (Ag+) solubility, and hence availability, that arises due … and experiment to determine the effect of substrate on ion release from silver particles in electrochemical … also observed that with time of exposure to DI water, Ag+ ion release increases to a maximum value at 5 minutes before …

Heating Rates and Enhanced Equilibration Rates with Strongly Correlated Ions in a Penning-Malmberg Trap

June 25, 2006
Author(s)
John J. Bollinger, Marie J. Jensen, T Hasegawa, D H. Dubin
… We laser cool up to 10 6 9 Be + ions to ~ 1 mK in a Penning-Malmberg trap and measure the ion … off the cooling laser. We observe a rapid heating of the ions when the their temperature in a direction parallel to … cyclotron motion with the parallel motion of the 9 Be + ions. The observed equilibration is more than 14 orders of …

Lessons learned from FeSb2O4 on stereoactive lone pairs as a design principle for anion insertion

October 20, 2021
Author(s)
Wasif Zaheer, George Agbeworvi, Saul Perez-Beltran, Justin Andrews, Yierpan Aierken, Conan Weiland, Cherno Jaye, Young-Sang Yu, David Shapiro, Sirine Fakra, Daniel A. Fischer, Jinghua Guo, David Prendergrast, Sarbajit Banerjee
… Fluoride-ion batteries are an attractive energy storage concept analogous to lithium-ion batteries but feature an inverted paradigm where anions (fluoride-ion), and not cations, are the principal charge carriers. … F-ion intercalation, battery materials, HAXPES, XANES, STXM, …

Ionization potentials of superheavy elements No, Lr, and Rf and their ions

October 3, 2016
Author(s)
Vladimir A. Dzuba, M.S. Safronova, Ulyana I. Safronova, Alexander Kramida
… potentials of superheavy elements No, Lr, and Rf and their ions using a relativistic hybrid method that combines con … calculated ionization potential of Yb, Lu, Hf, and their ions, which are homologues of the superheavy elements of this … potentials of superheavy elements No, Lr, and Rf and their ions …

Entangled States of Atomic Ions for Quantum Metrology and Computation

January 1, 1996
Author(s)
David J. Wineland, C Monroe, D M. Meekhof, B E. King, Dietrich G. Leibfried, Wayne M. Itano, James C. Bergquist, D J. Berkeland, John J. Bollinger, J D. Miller
… in realizing, quantum logic based on multiple trapped ions. … Entangled States of Atomic Ions for Quantum Metrology and Computation …

Recovery of background structures in nanoscale Helium Ion Microscope imaging, and the use of progressive fractional diffusion smoothing.

December 31, 2014
Author(s)
Andras Vladar
… two step enhancement technique applicable to noisy Helium Ion Microscope images in which background structures are not … fractional diffusion smoothing, nanoscale helium ion microscopy, noise reduction, HIM, SEM. … Recovery of background structures in nanoscale Helium Ion Microscope imaging, and the use of progressive fractional …

Dehydration vs. Deamination of N-Terminal Glutamine in Collision-Induced Dissociation of Protonated Peptide Ions

August 11, 2006
Author(s)
Pedatsur Neta, Quan-Long Pu, Lisa E. Kilpatrick, Xiaoyu Yang, Stephen E. Stein
… mass spectrometry in singly- and doubly-protonated peptide ions undergoing collision-induced dissociation in a triple … QLLLPLLLK and QLLLPLLLR show that the singly protonated ions undergo loss of ammonia and to a smaller extent loss of water, whereas the doubly protonated ions undergo predominantly loss of water. The fast …

Secondary Ion Yield Matrix Effects in SIMS Depth Profiles of Si/Ge Multilayers

April 1, 1989
Author(s)
John G. Gillen, J M. Phelps, Randall W. Nelson, Peter Williams, Steven M. Hues
… thicknesses of 4-33 nm, have been analyzed by secondary ion mass spectrometry (SIMS) using Ar+, O2+ and Cs+ primary ion beams. Bombardment with both Ar+ and O2+ produced positive secondary ion depth profiles in which pronounced distortions were … Secondary Ion Yield Matrix Effects in SIMS Depth Profiles of Si/Ge …

Phase-coherent sensing of the center-of-mass motion of trapped-ion crystals

November 9, 2020
Author(s)
Matthew Affolter, Kevin Gilmore, Elena Jordan, John Bollinger
… Measurements of the center-of-mass motion of a trapped-ion crystal that are phase- coherent with an external force … the trap motional frequency on a two-dimensional trapped ion crystal of approximately 100 ions, and determine the … of weak force and electric field detection below 10−3yN/ion and 1 nV/m, respectively. …

Spectroscopy of a single Al + ion via coupling to Be +

July 25, 2005
Author(s)
Till P. Rosenband, Piet Schmidt, Jeroen Koelemeij, Wayne M. Itano, Yohei Kobayashi, Tara M. Fortier, Scott A. Diddams, James C. Bergquist, David J. Wineland
… precision spectroscopy on 27 Al + with the aid of a 9 Be + ion. Using sympathetic cooling and quantum state transfer, we … Spectroscopy of a single Al + ion via coupling to Be + …

Effects of Resin Composition on the Remineralizing Ability of Amorphous Calcium Phosphate-Based Polymeric Composites

January 1, 2000
Author(s)
Joseph M. Antonucci, Drago Skrtic, E D. Eanes
… Bis-GMA/TEGDMA composites gave extremely low levels of ion release, the UDMA composites gave moderate sustainable release of ions. High, sustainable levels of ion release were obtained from the HEMA-containing … acid matrix composite based on PMGDMA initially gave high ion release, but this was not sustainable because of …

Exponentially correlated Hylleraas-Configuration Interaction studies of atomic systems. II. Non-relativistic energies of the 1 singlet S through 6 singlet S states of the Li+ ion

October 15, 2021
Author(s)
Maria B. Ruiz, James S. Sims, Bholanath Padhy
… examine not only the ground 1 singlet S state of the Li+ ion, but the 2 singlet S through 6 singlet S excited states … Lithium ion, non-relativistic energy, singlet S states, Hy-CI, E-Hy-CI … of the 1 singlet S through 6 singlet S states of the Li+ ion …

Degradation of Poly (Acrylates Under SF 5 + Primary Ion Bombardment Studied Using Time of Flight Secondary Ion Mass Spectrometry 1. Effect of Main Chain and Pendant Methyl Groups

October 16, 2008
Author(s)
M S. Wagner
… to the depth profiling of organic materials by secondary ion mass spectrometry (SIMS). Polyatomic primary ions offer … of the polymer on its degradation under polyatomic primary ion bombardment has not yet been systematically studied. In this study, positive and negative ion time-of-flight SIMS (ToF-SIMS) was used to measure the …

Minimization of ion micromotion in a Paul trap

January 1, 1998
Author(s)
D J. Berkeland, J D. Miller, James C. Bergquist, Wayne M. Itano, David J. Wineland
… micromotion. The first relies on the change of the average ion position as the trap potentials are changed. The second … Minimization of ion micromotion in a Paul trap …
Displaying 476 - 500 of 2538
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