Results 101 to 110 of about 219,369 (310)

Detection of negative ions in glow discharge mass spectrometry for analysis of solid specimens [PDF]

, 2018
A new method is presented for elemental and molecular analysis of halogen-containing samples by glow discharge time-of-flight mass spectrometry, consisting of detection of negative ions from a pulsed RF glow discharge in argon. Analyte signals are mainly
Canulescu, Stela, Chapon, P., Michler, Johann, Molchan, Igor, Skeldon, Peter, Tauziede, C., Tempez, Agnes, Thompson, George, Whitby, J.   +8 more
core  

Compositional Analysis of the High Molecular Weight Ethylene Oxide Propylene Oxide Copolymer by MALDI Mass Spectrometry

, 2012
The composition of narrow distribution poly ethylene oxide-propylene oxide copolymer (Mw ~ 8700 Da) was studied using matrix assisted laser desorption ionization (MALDI) mass spectrometry.
Houshia, Orwa Jaber, Wilkins, Charles
core   +1 more source

Applications of Direct Injection Soft Chemical Ionisation-Mass Spectrometry for the Detection of Pre-blast Smokeless Powder Organic Additives [PDF]

, 2019
Analysis of smokeless powders is of interest from forensics and security perspectives. This article reports the detection of smokeless powder organic additives (in their pre-detonation condition), namely the stabiliser diphenylamine and its derivatives 2-
A Jordan, A Zeichner, B Agarwal, B Gilbert-López, C Cruces-Blanco, C Shen, C West, CA Mayhew, CM Mahoney, D Laza, D-MK Dennis, E Bernal Morales, E Goudsmits, F Biasioli, F Li, G Scherperel, H Meng, H-h Meng, J Bueno, JJ Perez, JJ Perez, JL Thomas, KH Chang, KL Reese, M Joshi, M Joshi, M López-López, M López-López, M Mach, M Morelato, M Zhao, O Cascio, O Dalby, P Sulzer, P Sulzer, R González-Méndez, R González-Méndez, R González-Méndez, RV Taudte, S Jürschik, W Lindinger, WA MacCrehan, WA MacCrehan, Y Tong, Z Abrego, Z Wu   +45 more
core   +2 more sources

Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy

Advanced Materials, EarlyView.
Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa, Gracia Mendoza, Silvia Irusta, Manuel Arruebo   +3 more
wiley   +1 more source

Laser Desorption/Ionization-Time of Flight (LDI-TOF) and Matrix-Assisted Laser Desorption/Ionization - Time of Flight (MALDI – TOF) mass spectrometry of an Algerian asphaltene

Egyptian Journal of Petroleum, 2017
Both LDI-TOF and MALDI-TOF Mass spectroscopy experiments of an Algerian asphaltene derived from a deposit were performed. LDI mass experiments were conducted for both linear and reflectron modes under laser wavelength/attenuation variation. The different
T. Fergoug, C. Boukratem, B. Bounaceur, Y. Bouhadda   +3 more
doaj   +1 more source

Evaluation of matrix-assisted laser desorption ionisation time-of-flight mass spectrometry (MALDI-TOF MS) for the Identification of Group B Streptococcus. [PDF]

, 2019
Objective Group B Streptococcus (GBS) is a leading cause of neonatal meningitis and sepsis worldwide. Intrapartum antibiotics given to women carrying GBS are an effective means of reducing disease in the first week of life.
Chalker, V, Cornwell, E, Daniel, R, Goonesekera, S, Jauneikaite, E, Le Doare, K, To, K-N   +6 more
core   +1 more source

Water Permeates and Plasticizes Amorphous Carbon Dots: Unraveling the Inner Accessibility of the Nanoparticles by Glass Transition Studies

Advanced Materials, EarlyView.
The water permeability of amorphous carbon dots (CDs) is demonstrated by investigating their plasticization. Novel polyamide‐based and amorphous nanoparticles are synthesized by controlling their inner packing density. Water plasticization is evidenced by the decrease of the CDs glass transition temperature with increasing the hydration degree.
Elisa Sturabotti, Valerio Di Lisio, Lucia Cardo, Alessandro Camilli, Estela Moretón Alfonsín, Daniele Cangialosi, Amaia Iturrospe Ibarra, Arantxa Arbe, Maurizio Prato   +8 more
wiley   +1 more source

Unlocking the potential of battery technologies through Time-of-Flight Secondary Ion Mass Spectrometry

Science and Technology of Advanced Materials
In response to the evolving demands in energy storage, the review underscores the critical need for ongoing research in battery technology, specifically centred to indispensable role of Time-of-Flight Secondary Ion Mass Spectrometry (TOF-SIMS) which aims
Prince Sharma, Gen Hasegawa, Sihao Xing, Naoaki Kuwata   +3 more
doaj   +1 more source

Effect of Atomic Layer Deposition of Ultra‐Thin Oxide on Reactivity and Durability of Perovskite Oxygen Electrodes

Advanced Materials, EarlyView.
This table of contents illustrates that the mechanism for mitigating Sr segregation depends strongly on the chemistry of the coating layer. HfO2 electrostatically stabilizes the surface by lowering the surface oxygen vacancies, which serve as the driving force for Sr migration. On the other hand, Al2O3 and Fe2O3 react with segregated Sr to form Sr‐Al‐O
Jongsu Seo, SungHyun Jeon, Hyunseung Kim, San Kwak, DongHwan Oh, Bonjae Koo, Jinwook Kim, Jeong Hwan Kim, WooChul Jung   +8 more
wiley   +1 more source

Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +1 more source