Results 51 to 60 of about 2,476 (207)

Enhanced thermal and alkaline stability of L-lysine decarboxylase CadA by combining directed evolution and computation-guided virtual screening

open access: yesBioresources and Bioprocessing, 2022
As an important monomer for bio-based nylons PA5X, cadaverine is mainly produced by enzymatic decarboxylation of L-lysine. A key issue with this process is the instability of L-lysine decarboxylase (CadA) during the reaction due to the dissociation of ...
Yang Xi, Lidan Ye, Hongwei Yu
doaj   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

open access: yesAdvanced Materials Technologies, Volume 11, Issue 12, 18 June 2026.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke   +3 more
wiley   +1 more source

MagNanoTrap‐Anreicherung ermöglicht ultrasensitive Quantifizierung gemischter Nanoplastikpartikel aus Umweltwasserproben

open access: yesAngewandte Chemie, Volume 138, Issue 20, 11 May 2026.
Fe3O4‐Nanopartikel, beschichtet mit dem bifunktionalen Peptid LCI‐DZ‐MBP1, wobei LCI an die Eisenoxidoberfläche bindet und MBP1 als universelles kunststoffbindendes Peptid fungiert, ermöglichen in Kombination mit Pyrolyse‐Gaschromatographie/Massenspektrometrie (Py‐GC/MS) eine effiziente Anreicherung sowie eine präzise Detektion und Quantifizierung ...
Maochao Mao   +5 more
wiley   +1 more source

The catalytic activity of copper/nickel supported on mesoporous aluminum catalyst towards cyclohexene epoxidation in continuous reactor

open access: yesJournal of Saudi Chemical Society, 2023
The intent of the study is to attain a high selectivity rate and stable interaction between metals in any heterogeneous catalyst. Cyclohexene is extremely valuable in industrial domains such as the synthesis of perfumes and nylons, and the mesoporous ...
R. Yuvan raj   +8 more
doaj   +1 more source

Polymorphism of even nylons revisited through periodic quantum chemical calculations [PDF]

open access: yes, 2015
Density functional theory calculations with periodic boundary conditions have been carried out for the 3D crystal cells of alpha and gamma polymorphs of even polyamides (ranging from nylon-4 up to nylon-12) in order to investigate the relative stability ...
QUARTI, CLAUDIO   +2 more
core   +1 more source

Chapter 1: High-performance polyethylene fibers

open access: yesAdvanced Industrial and Engineering Polymer Research, 2022
In 1960, Treloar [1] published a seminal paper showing that the stiffness (E-Modulus) of an extended viz. fully stretched polyethylene and polyamide chain is close to 200 GPa, which is appr. the same stiffness as steel.
Pieter Jan Lemstra
doaj   +1 more source

Passive environmental DNA sampling: A review of current practices, limitations and future directions for biodiversity monitoring

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 5, Page 1535-1555, May 2026.
Abstract Passive environmental DNA (eDNA) sampling is rapidly emerging as a powerful alternative to active sampling methods (e.g. direct water sampling), with a rapidly growing diversity of tested approaches but little methodological convergence.
Fidji Sandré   +2 more
wiley   +1 more source

Unified Understanding of Ferroelectricity in n‑Nylons: Is the Polar Crystalline Structure a Prerequisite?

open access: yes, 2016
Over the past decades, it has been commonly considered that ferroelectricity is closely related to the polar crystalline structure of odd-numbered nylons, and even-numbered nylons should not exhibit ferroelectricity due to their nonpolar crystalline ...
Lei Zhu (16642)   +2 more
core   +1 more source

Temperature induced structural changes in even-odd nylons with long polymethylene segments [PDF]

open access: yes, 2016
Structural transitions of nylons 8 9 and 12 9 heating and cooling processes were investigated using calorimetric, spectroscopic during and real time X-ray diffraction data.
Olmo Osuna, Cristian   +4 more
core   +1 more source

Redesigned Hybrid Nylons with Optical Clarity and Chemical Recyclability

open access: yes, 2022
Aliphatic polyamides, or nylons, are typically highly crystalline and thermally robust polymers used in high-performance applications. Nylon 6, a high-ceiling-temperature (HCT) polyamide from ε-caprolactam, lacks expedient chemical recyclability, while ...
Heather B. Mayes   +13 more
core   +1 more source

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