Results 111 to 120 of about 3,958,494 (277)

Laser Ablation-Aerosol Mass Spectrometry-Chemical Ionization Mass Spectrometry for Ambient Surface Imaging

, 2018
Mass spectrometry imaging is becoming an increasingly common analytical technique due to its ability to provide spatially resolved chemical information.
Brett B. Palm (1296768), Jennifer L. Berry (4899619), Jose L. Jimenez (526440), Douglas A. Day (1482856), Uwe Karst (1517185), Jason C. Schroder (4899616), Weiwei Hu (322065), Tim Elseberg (4899625), Eleanor C. Browne (1496863), Aroob Abdelhamid (4899622)   +9 more
core   +1 more source

Rapid Identification of Cosmetic Packaging Materials Based on Laser Ablation Carbon Fiber Ionization Mass Spectrometry

Zhipu Xuebao
The rapid rise of counterfeit high-quality cosmetic packaging has become a major challenge for regulatory authorities, manufacturers, and forensic identification agencies.
Shi-bo ZHENG, Rong ZHENG, Qian MENG, Wei DAI, Yue SU, Yin-long GUO   +5 more
doaj   +1 more source

Mechanically Robust, Self‐Healable, and Cryotolerant GelMA Hydrogel for Wearable Tactile Sensors with Enhanced Durability, Lifetime, and Environmental Stability

Advanced Science, EarlyView.
A mechanically robust, self‐healable, moisturizing, cryotolerant and adhesive GelMA hydrogel is developed by incorporating polyvinyl alcohol, acrylic acid, sodium tetraborate, and glycerol into GelMA matrix via a photoinitiated polymerization process. The hydrogel‐derived omni‐healable ionotronic pressure sensor can sensitively and consistently monitor
Zhikang Li, Gengyu Han, Boqing Jia, Jijian Lu, Changxu Zhang, Bin Wang, Jiaxiang Wang, Kang Zhao, Muhammad Afzal Khan Qureshi, Lan Yu, Min Li, Guoxi Luo, Tong Wang, Qijing Lin, Weishi Li, Libo Zhao, Yumeng Xue   +16 more
wiley   +1 more source

Nonlinear Quantum Effects Drive Grotthuss Proton Conduction in Structured Electrolytes Based on Deep Eutectic Solvents

Advanced Science, EarlyView.
We demonstrate that the inverse relationship between viscosity and conductivity in structured electrolytes can be circumvented by leveraging their hydrogen bonding networks for Grotthuss proton transport. Using a mixture of imidazole and levulinic acid, we show that the existence of extended hydrogen‐bonded chains that can rapidly reorient result in ...
Benworth B. Hansen, Michael S. Chen, Giselle de A. L. e Souza, Kaylie Glynn, Alan Robledo, Emilia Pelegano‐Titmuss, Katherine Hightower, Miguel Muñoz, Rathiesh Pandian, Clemens Burda, Aikaterini Sanida, Mark Dadmun, Burcu E. Gurkan, Steve G. Greenbaum, Mark E. Tuckerman, Joshua R. Sangoro   +15 more
wiley   +1 more source

Mass spectrometry of alkylbenzenes and related compounds. Part II. Gas phase ion chemistry of protonated alkylbenzenes (alkylbenzenium ions) [PDF]

, 1990
Kuck D. Mass spectrometry of alkylbenzenes and related compounds. Part II. Gas phase ion chemistry of protonated alkylbenzenes (alkylbenzenium ions). Mass Spectrometry Reviews.
Kuck, Dietmar, Dietmar Kuck
core   +1 more source

Self‐Healing Ionogel Dual‐Network Enables Synergistic Defect Passivation and Strain Relief for High‐Efficiency Robust Perovskite Photovoltaics

Advanced Science, EarlyView.
PSCs are afflicted by inherent defects and lattice strain that limit PCE and stability. A cross‐linked multifunctional ionogel [HA‐AA][EMIES] is developed to modulate crystallization, relieve residual strain, and passivate defects, extending carrier diffusion length to over 8 µm and delivering PCEs of 26.45% for rigid devices and 25.14% for flexible ...
Wen Wu, Gang Wang, Chen Liu, Xiao‐Li Du, Sheng Yang, Shao‐Long Wang, Jia‐Yi Tian, Ling‐Feng Chao, Xiang‐Feng Deng, Yi Jiang, Yong‐Hua Chen, Gui‐Chuan Xing, Wen‐Yong Lai   +12 more
wiley   +1 more source

Direct mass spectrometry for traditional Chinese medicine analysis: Analytical strategies, applications, and future perspectives

Biomedical Analysis
Direct mass spectrometry has become an important analytical approach in traditional Chinese medicine (TCM) because it enables rapid, direct, and minimally destructive characterization with little or no chromatographic pretreatment.
Kaiwen Zhang, Bin Li, Yanying Chen, Haoyu Mai, Chang-jiang-sheng Lai   +4 more
doaj   +1 more source

cis‐Carboxylate Enhancement of Mn(III)‐OH Hydrogen Atom Abstraction through PCET Thermodynamics

Advanced Science, EarlyView.
ABSTRACT Manganese(III)‐hydroxo intermediates are proposed as key hydrogen atom abstraction (HAA) species in manganese‐dependent enzymes, yet how first‐sphere carboxylate ligands control their proton‐coupled electron transfer (PCET) thermodynamics remains poorly understood.
Yuri Lee, Yujin Sim, Sehun An, Kyung‐Bin Cho, Jaeheung Cho   +4 more
wiley   +1 more source

Atomically Dispersed Fe‐Modified SnS for Sn‐Centered Peroxymonosulfate Activation Toward Acetaminophen Degradation

Advanced Science, EarlyView.
Atomically dispersed Fe regulates the local electronic environment and surface properties of SnS, while PMS preferentially coordinates to Sn through Sn–O interaction. Fe incorporation further enhances the Sn–OPMS interfacial interaction, facilitating Sn‐centered PMS activation and the generation of SO4•−/•OH for APAP degradation, thereby clarifying the
Shuhui Liu, Yantao Wang, Ya Liu, Jingkai Lin, Shaobin Wang, Wenjie Tian   +5 more
wiley   +1 more source

Analysis of Methoxymethylbenzoguanamine Resins Using Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry and Electrospray Ionization Mass Spectrometry [PDF]

, 2003
Methoxymethylbenzoguanamine resins were analyzed by matrix-assisted laser　desorption/ionization timeof-flight mass spectrometry (MALDI-TOF-MS) and electrospray ionization mass spectrometry (ESI-MS).
Fujiwara, Hiroki, Arakawa, Ryuichi, Irie, Hidenobu, Shiokawa, Akito, 27005, 27006, Ohmoto, Masayoshi, 27000, 27003, 27004, 27001, 27002, Okuno, Shoji, Ogawa, Kimiya   +13 more
core   +1 more source