Results 181 to 190 of about 18,204 (247)

Analytical Approaches to Address Challenges in the Analysis of Cannabinoids in Vascular Matrices Using Mass Spectrometry

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Phytocannabinoids are bioactive metabolites derived from the Cannabis sativa plant. They have garnered attention due to their recreational uses and therapeutic potential. Although various analytical strategies have been employed for their analysis, mass spectrometry (MS) coupled to chromatographic separation is superior due to its sensitivity ...
Radwa Mahmoud   +2 more
wiley   +1 more source

Chemical Ionization Mass Spectrometry: Fundamental Principles, Diverse Applications, and the Latest Technological Frontiers

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT The review examines the evolution of chemical ionization mass spectrometry (CI‐MS), a technique developed in 1966 by Field and Munson. CI is a soft‐ionization method that produces more intense molecular ions with less fragmentation than electron ionization (EI).
Malvika Dutt   +4 more
wiley   +1 more source

Development of a Sustainable Biocatalytic Process for Geranyl Benzoate Production Using Immobilized Lipase

open access: yesChemistryOpen, EarlyView.
This study optimized solvent‐free geranyl benzoate production using Lipozyme 435, achieving 72% conversion in 6 hours. Open reactors improved yields (>99% in 48 hours) by removing inhibitorymethanol. Methyl benzoate reduced enzyme activity by 54%, though Lipura Flex showed better resistance. Human cell tests confirmed no cytotoxicity.
Domenico Meola   +9 more
wiley   +1 more source

Synergistic Effect of Silanized Ramie Fiber and Montmorillonite Clay on the Mechanical, Thermal, and Dynamic‐Mechanical Properties of Polyester Composites

open access: yesPolymer Composites, EarlyView.
Multiscale composite reinforced with silane‐modified ramie fiber and clay. ABSTRACT Multiscale polymer composites combining natural fibers and layered silicates can balance stiffness, toughness, and thermal stability when interfacial interactions are properly engineered.
Daniel Rossi Klein   +4 more
wiley   +1 more source

Recyclability of Polystyrene Bead Foams: Degradation Behavior over 10 Extrusion Cycles

open access: yesPolymer Engineering &Science, EarlyView.
This study investigates the multi‐cycle recycling of expanded polystyrene bead foam blended with virgin material. Material degradation is monitored by MFI, GPC, and mechanical testing. The results demonstrate that long‐term recyclability is feasible without progressive property loss, and that secondary high‐shear steps such as extrusion and pelletizing
Christian Töpfer   +2 more
wiley   +1 more source

Optimizing Processing and Formulation Strategies for Enhanced Thermal and Chemical Stability of Meltblown Polyphenylene Sulfide Nonwovens

open access: yesPolymer Engineering &Science, EarlyView.
PPS/PEI alloy fibers fabricated via meltblowing exhibit enhanced thermal stability with less than 10% shrinkage at 180°C, superior chemical resistance, and a high LOI of 34. ABSTRACT Polyphenylene sulfide (PPS) meltblown nonwovens are attractive for high‐performance filtration and protective applications owing to their intrinsic chemical resistance ...
Yi‐Cang Lai   +4 more
wiley   +1 more source

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