Results 41 to 50 of about 37,190 (246)

Extractive-liquid sampling electron ionization-mass spectrometry (E-LEI-MS): a new powerful combination for direct analysis

Scientific Reports, 2023
One of modern analytical chemistry main challenges is providing as fast as possible results in different application fields. In this view, real-time analysis techniques are experiencing ever-increasing success as they can provide data quickly, almost ...
Adriana Arigò, Giorgio Famiglini, Nicole Marittimo, Marco Agostini, Caterina Renzoni, Pierangela Palma, Achille Cappiello   +6 more
doaj   +1 more source

Biomineral‐Inspired Organic/Inorganic Colloidal Liquid‐Crystalline Hybrids for Photoresponsive Adhesion

Advanced Functional Materials, EarlyView.
A new class of photoresponsive liquid‐crystalline (LC) adhesives based on biomineral‐inspired organic/inorganic colloidal hybrids is reported. These colloidal LC materials are formed by hybridization of a hydroxyapatite nanorod with azobenzene‐based forklike molecules.
Junya Uchida, Ryuta Kiguchi, Riki Kato, Yuta Nishina, Takashi Kato   +4 more
wiley   +1 more source

Criticality of Spray Solvent Choice on the Performance of Next Generation, Spray-Based Ambient Mass Spectrometric Ionization Sources: A Case Study Based on Synthetic Cannabinoid Forensic Evidence

Instruments
Mass spectrometry (MS) is a highly selective and sensitive analytical tool with a myriad of applications, but such techniques are typically used in laboratory settings due to the handling and preparations that are necessary. The merging of two streams of
Shahnaz Mukta, Ebenezer H. Bondzie, Sara E. Bell, Chase Deberry, Christopher C. Mulligan   +4 more
doaj   +1 more source

A Chemical Ionization Mass Spectrometer for ambient measurements of Ammonia [PDF]

Atmospheric Measurement Techniques, 2010
This study presents a chemical ionization mass spectrometer (CIMS) for fast response, in-situ measurements of gas phase ammonia (NH₃). The NH₃ background level detected with the CIMS ranged between 0.3–1 ppbv,
D. R. Benson, A. Markovich, M. Al-Refai, S.-H. Lee   +3 more
doaj   +1 more source

Determination of Brain Tissue Samples Storage Conditions for Reproducible Intraoperative Lipid Profiling

Molecules, 2022
Ex-vivo molecular profiling has recently emerged as a promising method for intraoperative tissue identification, especially in neurosurgery. The short-term storage of resected samples at room temperature is proposed to have negligible influence on the ...
Stanislav I. Pekov, Evgeny S. Zhvansky, Vasily A. Eliferov, Anatoly A. Sorokin, Daniil G. Ivanov, Eugene N. Nikolaev, Igor A. Popov   +6 more
doaj   +1 more source

A Holistic Platform Approach for Developing Robust Pulmonary mRNA Delivery: Integrating Novel Phenolic Acid‐Derived Ionizable Lipids and Device Engineering

Advanced Functional Materials, EarlyView.
An integrated pulmonary mRNA delivery platform combining novel biodegradable syringic acid‐derived ionizable lipids, design‐of‐experiments formulation optimization, and vibrating‐mesh nebulizer engineering enabled stable aerosolization and efficient lung delivery.
Neha Kaushal, Younan Ma, Asad Khanmohammed, Dipen Parande, Hanming Zhang, Saket Dolare, Juliet Chen, Apiwat Wangweerawong, Saswata Karmakar, Hongfeng Deng, Frank Koppenhagen, Shraddha Sharma, Eric Reyes, Sherry He, Lianne Boeglin, Caroline Woo, Azadeh Paksa, Ayed Allawzi, Anusha Dias, Gregory Troiano, Shrirang Karve, Frank DeRosa   +21 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 Expanding Role of Electrospray Ionization Mass Spectrometry for Probing Reactive Intermediates in Solution

Molecules, 2012
Within the past decade, electrospray ionization mass spectrometry (ESI-MS) has rapidly occupied a prominent position for liquid-phase mechanistic studies due to its intrinsic advantages allowing for efficient “fishing” (rapid, sensitive, specific and ...
Bin Guo, Bo Chen, Ling Tang, Hua Wang, Le Zeng, Peng Zhou, Yu Yuan, Weitao Zhu   +7 more
doaj   +1 more source

Direct adsorption sampling and ambient mass spectrometry analysis of tobacco smoke with porous paper strips

Frontiers in Chemistry, 2022
Chemical analysis of atmospheric aerosols by conventional analytical methods is usually required to perform complicated and time-consuming sample preparation processes.
Ji Yang, Wen Xiong, Chunbo Liu, Juan Li, Ruizhi Zhu, Jianjun Xia, Zhijiang Yin, Ran Tian, Shiyun Tang, Zhenjie Li, Hui Li, Ying Han, Xiaoxi Si, Wei Jiang, Pei He, Fengmei Zhang, Yanqin Xu, Zhihua Liu   +17 more
doaj   +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