scholarly journals Distinguishing among Flavonoid Glycoside Isomers from Hydrogen Radical Removal in UV-MALDI-MS

2018 ◽  
Vol 66 (5) ◽  
pp. 197-203
Author(s):  
Tohru Yamagaki
Keyword(s):  
Flavonoid Glycoside ◽  
Maldi Ms ◽  
Radical Removal ◽  
Hydrogen Radical

scholarly journals Laser-Induced Hydrogen Radical Removal in UV MALDI-MS Allows for the Differentiation of Flavonoid Monoglycoside Isomers

2013 ◽  
Vol 25 (1) ◽  
pp. 88-94 ◽  
Author(s):  
Tohru Yamagaki ◽  
Takehiro Watanabe ◽  
Masaki Tanaka ◽  
Kohtaro Sugahara
Keyword(s):  
Maldi Ms ◽  
Radical Removal ◽  
Hydrogen Radical

Low-Temperature Post-Oxidation Annealing Using Atomic Hydrogen Radicals Generated by High-Temperature Catalyzer for Improvement in Reliability of Thermal Oxides on 4H-SiC

2006 ◽  
Vol 527-529 ◽  
pp. 999-1002
Author(s):  
Junji Senzaki ◽  
Atsushi Shimozato ◽  
Kenji Fukuda
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Atomic Hydrogen ◽  
High Reliability ◽  
Hydrogen Atmosphere ◽  
Exposed Sample ◽  
New Apparatus ◽  
Hydrogen Radical ◽  
Hydrogen Radicals ◽  
Sic Wafer

Low-temperature post-oxidation annealing (POA) process of high-reliability thermal oxides grown on 4H-SiC using new apparatus that generates atomic hydrogen radicals by high-temperature catalyzer has been investigated. Atomic hydrogen radicals were generated by thermal decomposition of H2 gas at the catalyzer surface heated at high temperature of 1800°C, and then exposed to the sample at 500°C in reactor pressure of 20 Pa. The mode and maximum values of field-to-breakdown are 11.0 and 11.2 MV/cm, respectively, for the atomic hydrogen radical exposed sample. In addition, the charge-to-breakdown at 63% cumulative failure of the thermal oxides for atomic hydrogen radical exposed sample was 0.51 C/cm2, which was higher than that annealed at 800°C in hydrogen atmosphere (0.39 C/cm2). Consequently, the atomic hydrogen radical exposure at 500°C has remarkably improved the reliability of thermal oxides on 4H-SiC wafer, and is the same effect with high-temperature hydrogen POA at 800°C.

Characteristic MALDI-MS lipid profiles of Gir, Holstein and crossbred (Gir x Holstein) oocytes recovered by ovum pick-up

2021 ◽  
Vol 243 ◽  
pp. 104380
Author(s):  
Thamiris Vieira Marsico ◽  
José Nélio de Sousa Sales ◽  
Christina Ramires Ferreira ◽  
Mateus José Sudano ◽  
João Henrique Moreira Viana ◽  
...  
Keyword(s):  
Lipid Profiles ◽  
Maldi Ms

Formation of a Hydrogen Radical in Hydrogen Nanobubble Water and Its Effect on Copper Toxicity in Chlorella

2021 ◽  
Author(s):  
Shu Liu ◽  
Jiayao Li ◽  
Seiichi Oshita ◽  
Mohammed Kamruzzaman ◽  
Minming Cui ◽  
...  
Keyword(s):  
Copper Toxicity ◽  
Hydrogen Radical

Matrix-assisted laser desorption ionisation (MALDI) mass spectrometry (MS): basics and clinical applications

2020 ◽  
Vol 58 (6) ◽  
pp. 883-896 ◽  
Author(s):  
Muhammad Zubair Israr ◽  
Dennis Bernieh ◽  
Andrea Salzano ◽  
Shabana Cassambai ◽  
Yoshiyuki Yazaki ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Desorption ◽  
Maldi Mass Spectrometry ◽  
Clinical Applications ◽  
Clinical Diagnostics ◽  
Maldi Ms ◽  
Therapeutic Drug ◽  
The Impact ◽  
Matrix Assisted Laser ◽  
Matrix Assisted Laser Desorption

AbstractBackgroundMatrix-assisted laser desorption ionisation (MALDI) mass spectrometry (MS) has been used for more than 30 years. Compared with other analytical techniques, it offers ease of use, high throughput, robustness, cost-effectiveness, rapid analysis and sensitivity. As advantages, current clinical techniques (e.g. immunoassays) are unable to directly measure the biomarker; rather, they measure secondary signals. MALDI-MS has been extensively researched for clinical applications, and it is set for a breakthrough as a routine tool for clinical diagnostics.ContentThis review reports on the principles of MALDI-MS and discusses current clinical applications and the future clinical prospects for MALDI-MS. Furthermore, the review assesses the limitations currently experienced in clinical assays, the advantages and the impact of MALDI-MS to transform clinical laboratories.SummaryMALDI-MS is widely used in clinical microbiology for the screening of microbial isolates; however, there is scope to apply MALDI-MS in the diagnosis, prognosis, therapeutic drug monitoring and biopsy imaging in many diseases.OutlookThere is considerable potential for MALDI-MS in clinic as a tool for screening, profiling and imaging because of its high sensitivity and specificity over alternative techniques.

scholarly journals Highly Multiplexed Immunohistochemical MALDI-MS Imaging of Biomarkers in Tissues

2021 ◽  
Author(s):  
Gargey Yagnik ◽  
Ziying Liu ◽  
Kenneth J. Rothschild ◽  
Mark J. Lim
Keyword(s):  
Maldi Ms ◽  
Ms Imaging
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