Results 91 to 100 of about 6,875,638 (265)

Detection of ZrO2 Nanoparticles in Lung Tissue Sections by Time-of-Flight Secondary Ion Mass Spectrometry and Ion Beam Microscopy

Nanomaterials, 2018
The increasing use of nanoparticles (NP) in commercial products requires elaborated techniques to detect NP in the tissue of exposed organisms. However, due to the low amount of material, the detection and exact localization of NP within tissue sections ...
Lothar Veith, Julia Böttner, Antje Vennemann, Daniel Breitenstein, Carsten Engelhard, Jan Meijer, Irina Estrela-Lopis, Martin Wiemann, Birgit Hagenhoff   +8 more
doaj   +1 more source

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

Advanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi, Samuele Lavelli, Zsolt M. Kovács‐Vajna, Fabrizio Torricelli   +3 more
wiley   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Dynamics of Molecules Observed at Crude-Oil-Gas Interfaces by Time-of-Flight Secondary Ion Mass Spectrometry Imaging

, 2020
Time-of-flight secondary ion mass spectrometry (TOF-SIMS) imaging provides molecular speciation at the micrometer scale, while the penetration depth of the primary ion beam is limited to the top-layers of a sample. These combined properties make TOF-SIMS
P. W. F. Arisz, Arisz, P. W. F., Pureveen, J. B. M., Heeren, R. M. A., R. M. A. Heeren, J. B. M. Pureveen   +5 more
core   +1 more source

Multi order correction algorithms to remove image distortions from mass spectrometry imaging datasets [PDF]

, 2013
Time-of-flight secondary ion mass spectrometry imaging is a rapidly evolving technology. Its main application is the study of the distribution of small molecules on biological tissues.
Konrad Basler, Furrer, Reinhard; https://orcid.org/, Marty, F., Florian Gerber, Gerber, Florian, Brunner, Erich, Heeren, Ron M A, Heeren, R.M.A., Basler, K., Eijkel, Gert B, Erich Brunner, Florian Marty, Gerber, F., Sub Biomol.Mass Spectrometry & Proteom., Biomolecular Mass Spectrometry and Proteomics, Ron M. A. Heeren, Furrer, R., Eijkel, G.B., Gert B. Eijkel, Brunner, E., Marty, Florian, Reinhard Furrer, Basler, Konrad; https://orcid.org/   +22 more
core   +2 more sources

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Advanced methods in fourier transform ion cyclotron resonance mass spectrometry [PDF]

Mass spectrometry (MS) is a powerful analytical technique used to characterize various compounds by measuring the mass-to-charge ratio (m/z). Among different types of mass analyzers, Fourier transform ion cyclotron resonance mass spectrometer (FT-ICR ...
Qi, Yulin
core  

Consequences of Decontamination Procedures in Forensic Hair Analysis Using Metal-Assisted Secondary Ion Mass Spectrometry Analysis

, 2016
Today, hair testing is considered to be the standard method for the detection of chronic drug abuse. Nevertheless, the differentiation between systemic exposure and external contamination remains a major challenge in the forensic interpretation of hair ...
Flinders, Bryn, Bosman, I.J., Heeren, Ron M. A., Heeren, R.M.A., Van Asten, Arian C., Heeren, Ron M.A., Boone, Carolien M., Lusthof, K.J., Boone, C.M., Cuypers, Eva; id_orcid, Cuypers, E., Van Asten, A.C., Bosman, Ingrid J., Lusthof, Klaas J., Tytgat, J., Cuypers, Eva, Tytgat, Jan, Flinders, B.   +17 more
core   +1 more source

Simulation and Engineering Design of a Secondary Quadrupole Ion Transmission System

Zhipu Xuebao
In this study, the secondary quadrupole ion transmission system was investigated, focusing on its design and optimization using computational fluid dynamics (CFD) and ion optics simulations.
Xin ZHANG, Ji-fan YIN, Wu WEN, Xin-yu YANG, Qun ZHANG, Li-tian WANG, Kai YANG, Yong-shuai ZHOU, Xing-ke WU   +8 more
doaj   +1 more source

Simultaneous Enhancement of Performance and Stability in Dual‐Gate a‐IGZO Thin‐Film Transistors via Single‐Step Laser Annealing for Capacitor‐Less DRAM

Advanced Functional Materials, EarlyView.
A single‐step laser annealing strategy is presented for dual‐gate a‐IGZO TFTs. The steep thermal gradient induces graded oxygen doping in the channel and simultaneous WOx removal at the contacts, enabling concurrent interface and contact engineering.
Sihyeon Kwon, Junil Kim, Geuntae Park, Minseok Kim, Woohyun Hwang, Wanki Kim, Daewon Ha, Byeongmoon Lee, Jae Eun Jang, Hyuk‐Jun Kwon   +9 more
wiley   +1 more source