Results 121 to 130 of about 1,320,406 (342)

Comparison of electrospray and UniSpray, a novel atmospheric pressure ionization interface, for LC-MS/MS analysis of 81 pesticide residues in food and water matrices

, 2019
In mass spectrometry, the type and design of ionization source play a key role on the performance of a given instrument. Therefore, it is of paramount importance to evaluate newly developed sources for their suitability to analyze food contaminants like ...
Houbraken, Michael, Marijn Van Hulle, Pieter Spanoghe, Galani, JHY, Van Hulle, M, Houbraken, M, Michael Houbraken, Spanoghe, P, Van Hulle, Marijn, Joseph Hubert Galani Yamdeu, Galani Yamdeu, Joseph Hubert, Spanoghe, Pieter   +11 more
core   +2 more sources

Origin and fluxes of atmospheric REE entering an ombrotrophic peat bog in Black Forest (SW Germany): Evidence from snow, lichens and mosses [PDF]

, 2006
The fate of the Rare Earth Elements (REE) were investigated in different types of archives of atmospheric deposition in the Black Forest, Southern Germany: (1) a 70 cm snow pack collected on the domed part of a raised bog and representing 2 months of ...
Le Roux, Gaël, Aubert, D., Stille, Peter, Krachler, Michael, Shotyk, William, Kober, B., Kober, Bernd, Aubert, Dominique, Krachler, M., Stille, P., Shotyk, W., Le Roux, G., Cheburkin, A., Cheburkin, Andriy   +13 more
core   +1 more source

In Situ Photopolymerization of Smectic B Liquid‐Crystalline Electrolytes from Mesogenic Phosphate–Diacrylate/Ionic Liquid Complexes for High‐Performance Soft Ionic Actuators

Advanced Robotics Research, EarlyView.
A flexible liquid‐crystalline electrolyte membrane via in situ photopolymerization of a phosphate‐functionalized mesogen, ionic liquid, and diacrylate monomer is developed. The resulting smectic B (SmB)‐phase structure enables 2D ion transport with high conductivity (10−4 S cm−1).
Chengyang Liu, Masafumi Yoshio
wiley   +1 more source

Development of ionization waves in argon at atmospheric pressure with inhomogeneous preliminary ionization

, 2018
Experimental and theoretical investigations of the initial stage of the formation of a pulsed volume discharge between two plane electrodes in argon at atmospheric pressure under conditions of inhomogeneous preionization are reported.
V. S. Kurbanismailov, G. B. Ragimkhanov, O. A. Omarov, D. V. Tereshonok   +3 more
core   +1 more source

Zinc Exposure Causes Disulfidptosis to Induce Miscarriage by Up‐Regulating GATA1/METTL1/SLC7A11 Axis

Advanced Science, EarlyView.
Zn exposure up‐regulates GATA1, promoting GATA1‐mediated METTL1 and SLC7A11 transcription. It also enhances METTL1‐mediated m7G modification on SLC7A11 mRNA, increasing SLC7A11 mRNA stability. Ultimately, Zn exposure up‐regulates SLC7A11 at both transcriptional and post‐transcriptional levels, causing disulfidptosis. Knockdown of murine Slc7a11, Gata1,
Wenxin Huang, Yi Sun, Yanxin Wang, Haijun Yan, Xiaoping Yue, Weidong Wu, Xueyu Chen, Jinfang Zhang, Yanbing Lin, Qiong Lei, Nan Ji, Shuaishuai Xing, Liqin Zeng, Qingzheng Kang, Depeng Zhao, Geng Guo, Huidong Zhang   +16 more
wiley   +1 more source

PET Imaging of Cardiac Inflammation in Viral Myocarditis Using a DPP4‐Targeted Probe

Advanced Science, EarlyView.
This study describes a DPP4‐targeted PET probe for imaging myocardial inflammation by selectively targeting activated immune cells. Derived from the clinically approved small‐molecule inhibitor linagliptin, the probe demonstrates favorable biodistribution with specific cardiac uptake in myocarditis.
Wanhao Gao, Wenzhu Hu, Du Tang, Xinxin Liu, Kun Yu, Lixia Feng, Minyu Liao, Wang Lin, Wenqiang Zhu, Sanjay Rajagopalan, Xiaoli Lan, Jixin Zhong, Dao Wen Wang, Dawei Jiang, Xiaoquan Rao   +14 more
wiley   +1 more source

Assessing Relative Electrospray Ionization, Atmospheric Pressure Photoionization, Atmospheric Pressure Chemical Ionization, And Atmospheric Pressure Photo- And Chemical Ionization Efficiencies In Mass Spectrometry Petroleomic Analysis Via Pools And Pairs Of Selected Polar Compound Standards

, 2017
A total of 15 standard compounds with structures similar to those normally found in crude oils were analyzed using an ultrahigh-resolution and high-accuracy Fourier transform ion cyclotron resonance (7.2 T LTQ FT Ultra, Thermo Fisher, Bremen, Germany ...
Marcos N., Marcos A.; Eberlin, Pudenzi
core   +1 more source

ZDHHC9‐Mediated Palmitoylation of ACSL4 Drives Ferroptosis in Diabetes Mellitus–Induced Erectile Dysfunction

Advanced Science, EarlyView.
ABSTRACT Diabetes mellitus‐induced erectile dysfunction (DMED) is a highly prevalent complication among diabetic patients; however, its underlying pathogenic mechanisms remain incompletely understood. Metabolic disorder is a hallmark of diabetes, yet its precise contribution to DMED progression is not well defined.
Wanyang Guo, Ming Xiao, Mengjun Huang, Dongzi Peng, Ruijiang Zeng, Ruilin Liu, Yuanqiao Zhao, Zhihan Ouyang, Yulong Hong, Zexian Ding, Zhuo Xing, Hao Su, Jinxiang Wang, Wenjun Mao, Xin Jin   +14 more
wiley   +1 more source

Atmospheric-pressure-ionization mass spectrometry: II. Applications in pharmacy, biochemistry and general chemistry

, 1994
Mass spectrometer ion sources are normally located inside a high-vacuum envelope. An ion source operating at atmospheric pressure is better suited, it not essential, for a growing number of applications.
Bruins, A.P., A.P. Bruins
core   +1 more source

Monte Carlo simulation of delayed γ-rays ionizing the atmosphere based on debris motion model

He jishu
BackgroundIn the aftermath of a high-altitude nuclear explosion, the delayed γ-rays emanating from the debris undergo a complex ionization process while traversing the non-uniform high-altitude atmosphere.
LIU Li, NIU Shengli, ZUO Yinghong, ZHU Jinhui, ZHUO Jun, LI Xiazhi   +5 more
doaj   +1 more source