Results 121 to 130 of about 7,366,504 (288)

Research on Uranium Particle Analysis Technology Based on Large Geometry Secondary Ion Mass Spectrometry

Yuanzineng kexue jishu
Nuclear safeguards remain a topic of shared concern for the international community. Large geometry secondary ion mass spectrometry (LG-SIMS) has been employed to efficiently analyze uranium `isotopes in uranium particle samples for monitoring undeclared
WU Yong1, 2, QIN Mingkuan1, 2, TAN Jing2, GUO Dongfa2, CUI Jianyong2, HE Sheng1, 2, CAI Yelei1, 2, LIN Yan1, 2
doaj   +1 more source

Metabolic profiling of Escherichia coli by ion mobility-mass spectrometry with MALDI ion source

, 2010
Comprehensive metabolome analysis using mass spectrometry (MS) often results in a complex mass spectrum and difficult data analysis resulting from the signals of numerous small molecules in the metabolome.
Albert J. Schultz, Geoffery Puzon, Prabha Dwivedi, Luying Xun, Tam, Maggie, Denis Langlais, Jackson, Shelley, Kimberly Kaplan, Amina Woods, Puzon, Geoffery, Schultz, Albert J, Langlais, Denis, William F. Siems, Siems, William F, Woods, Amina, Dwivedi, Prabha, Herbert H. Hill, Hill, Herbert H, Maggie Tam, Shelley Jackson, Xun, Luying   +20 more
core   +1 more source

The Effect of Hydrophilic Headgroup Chemistry on Peptoid‐Directed Mineralization of CaCO3

Advanced Functional Materials, EarlyView.
Amphiphilic peptoids alter the pathway and outcome of calcium carbonate crystallization, which progresses through amorphous calcium carbonate (ACC) to vaterite to calcite rhombs in the absence of peptoids. In contrast, amine‐terminated peptoids produce vaterite disks and carboxyl‐terminated peptoids produce calcite mesocrystals.
Biao Jin, Chunhui Wu, Thi Kim Hoang Trinh, Wenhao Zhou, Chun‐Long Chen, James J De Yoreo   +5 more
wiley   +1 more source

Analysis of bone minerals by time-of-flight secondary ion mass spectrometry: a comparative study using monoatomic and cluster ions sources.

, 2007
Time-of-flight secondary ion mass spectrometry (TOF-SIMS) is an important tool for the analysis of bone minerals at implant surfaces. Most studies have been performed with monoatomic primary ion sources such as Ga(+) with poor secondary molecular ion ...
Per Malmberg, Eriksson, Cecilia, Håkan Nygren, Richter, Katrin,, Ulf Bexell, Bexell, Ulf, Börner, Katrin,, Katrin Richter, Cecilia Eriksson, B\uf6rner, Katrin, Eriksson, Cecilia,, Malmberg, Per, Nygren, H\ue5kan, Nygren, Håkan,, Malmberg, Per,, Richter, K., Nygren, H., Bexell, Ulf,, Malmberg, P., Eriksson, C.   +19 more
core   +1 more source

Utilizing the Metastability of Spidroins as a Strategy for Improving Mechanical Properties of Biomimetic Spider Silk Fibers

Advanced Functional Materials, EarlyView.
Phase transitions are central for the assembly of recombinant silk proteins into fibers. Soluble protein can transition into condensed states such as condensates and gels. These states are metastable and evolve in a time‐dependent way. Metastability depends on the protein sequence, and this relationship can be used to enhance the mechanical properties ...
Fred‐Eric Sammalisto, Topias Lankinen, Celine Tallroth, Rafael A. Lara, Matilda Backholm, Markus B. Linder   +5 more
wiley   +1 more source

Nanoamphizymes: Self‐Assembled Amphiphilic Enzymatic Nanomaterials for High‐Performance Biocatalysis and Biosensing

Advanced Functional Materials, EarlyView.
An amphiphilic GOx nanoamphizyme was constructed by covalently introducing hydrophobic PPNI linkers onto GOx, enabling spontaneous self‐assembly into tunable nanoparticles. Mild crosslinking further stabilized the assemblies and enhanced catalytic performance and stability.
Yuan‐Hao Hsiao, Rajan Deepan Chakravarthy, Po‐Hsiang Chen, Abdelreheem Abdelfatah Saddik, Hsin‐Chieh Lin   +4 more
wiley   +1 more source

The ion conveyor : an ion focussing and conveying device for mass spectrometry

The advent of electrospray ionisation (ESI) has been a major factor driving the revolution which has taken place in the field of biological mass spectrometry over the past twenty years. In this thesis, efforts to improve electrospray ionisation in two
Gill, Matthew Clive
core  

Microscope mode secondary ion mass spectrometry imaging with a Timepix detector.

, 2013
In-vacuum active pixel detectors enable high sensitivity, highly parallel time- and space-resolved detection of ions from complex surfaces. For the first time, a Timepix detector assembly was combined with a secondary ion mass spectrometer for microscope
Andras Kiss, Jungmann, JH, Kiss, A., Heeren, R.M.A., Julia H. Jungmann, Afd Scheikunde Algemeen, Donald F. Smith, Smith, D.F., Sub Biomol.Mass Spectrometry & Proteom., Biomolecular Mass Spectrometry and Proteomics, Ron M. A. Heeren   +10 more
core   +1 more source

Neuromorphic Devices for Extreme Environments: State‐Variable Reliability and Stabilization Strategies

Advanced Functional Materials, EarlyView.
Neuromorphic devices for extreme environments are interpreted through the physical states that store and process information. Radiation, temperature extremes, and vacuum can perturb vacancies, filaments, trapped charges, polarization, interfaces, and readout signals.
Taehyun Park, Geon Park, Junhyung Cho, Jaechan Song, Wangmyung Choi, Jaehyun Hur, Nicola Gasparini, Hocheon Yoo   +7 more
wiley   +1 more source

A method for quantitative nanoscale imaging of dopant distributions using secondary ion mass spectrometry: an application example in silicon photovoltaics [PDF]

A method for rapid quantitative imaging of dopant distribution using secondary ion mass spectrometry (SIMS) is described. The method is based on SIMS imaging of the cross-section of a reference sample with a known concentration profile.
Ingenito, Andrea, Wirtz, Tom, Nogay, Gizem, Lehmann, Mario, Lentzen, Esther, Haug, Franz-Josef, Hessler-Wyser, Aicha, Valle, Nathalie, Philipp, Patrick, Eswara, Santhana, Pshenova, Alisa, Jeangros, Quentin   +11 more
core   +1 more source