Results 211 to 220 of about 15,568,264 (274)

Concentration‐Dependent Lamellar Organization and Structure–Property Relationships in Melt‐Processed EVA/Cloisite 20A Nanocomposites

open access: yesJournal of Applied Polymer Science, EarlyView.
Cloisite 20A content tunes the structural and mechanical response of melt‐processed ethylene‐vinyl acetate (EVA) nanocomposites. Expanded basal spacings at 5.0 and 7.5 wt% clay are consistent with polymer‐chain intercalation within ordered clay domains.
R. S. Victor   +7 more
wiley   +1 more source

Development of Biocatalysts Based on Lipase B From Candida antarctica Immobilized on Magnetic Poly(Styrene‐Co‐Divinylbenzene) for Application in Esterification Reactions

open access: yesJournal of Applied Polymer Science, EarlyView.
Magnetic biocatalysts can be recovered from high‐viscosity reaction media, such as those used in esterification, via magnetic attraction, thereby streamlining the bioprocess and reducing costs. This work builds on prior studies by providing additional data on how particle morphology influences immobilization parameters and by further exploring ...
Sabrina S. Teixeira   +7 more
wiley   +1 more source

Zn/Al‐NO3 Layered Double Hydroxide as Alternative Activator for Nitrile Rubber Vulcanization: Effect of the Accelerator‐to‐Sulfur Ratio on Curing Kinetics and Network Properties

open access: yesJournal of Applied Polymer Science, EarlyView.
Zn/Al‐NO3 layered double hydroxide offers a low‐zinc alternative for sulfur vulcanization of nitrile rubber, reducing nominal zinc loading by an estimated 71%. Its potential as a vulcanization activator depends on the curing system: conventional curing preserves tensile strength despite slower kinetics, whereas efficient curing maintains comparable ...
Lucas Castro Roza de Faria   +8 more
wiley   +1 more source

Fabrication‐Aware Mechanical Design of SLA‐Printed Polymeric Microneedles: Integrating Geometry, Dimensional Fidelity, and Structural Instability

open access: yesJournal of Applied Polymer Science, EarlyView.
SLA‐printed microneedles exhibit fabrication‐induced dimensional deviations that strongly influence their mechanical response. Comparison of nominal CAD, global as‐printed, and local critical‐section models shows that local tip‐region geometry provides the closest agreement with experimental instability loads, highlighting the importance of fabrication‐
Rafael C. Otoni   +4 more
wiley   +1 more source

SARS-CoV-2 active infection and antibodies amongst health personnel during the outbreak in Cameroon: Strengthening the health system for response to future public health emergencies. [PDF]

open access: yesPLoS One
Ngomtcho SCH   +21 more
europepmc   +1 more source

Rethinking brachycephaly: Anatomical implications and health considerations in lagomorphs

open access: yesThe Anatomical Record, EarlyView.
Abstract Brachycephaly in domestic rabbits is increasingly perceived by welfare organizations as associated with significant health complications, particularly oral pathologies. Despite this perception, comparative anatomical research into rabbit brachycephaly is limited compared to that of dogs and cats, compelling an in‐depth examination of its ...
Helaina Cressy   +3 more
wiley   +1 more source

Characterization of the extracellular matrix from human and dog umbilical cords

open access: yesThe Anatomical Record, EarlyView.
Abstract The extracellular matrix is important for maintaining tissue morphogenesis and homeostasis; it can also be used as a biomaterial for the production of biological scaffolds. Particularly, the umbilical cord has shown potential in the production of scaffolds for small‐diameter vessels.
Ana Carla Mendonça   +6 more
wiley   +1 more source

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