Results 111 to 120 of about 31,614 (246)

Polyphenylquinoxalines containing pendant phenylethynyl and ethynyl groups [PDF]

open access: yes, 1983
Poly(phenylquinoxaline) prepolymers containing pendant phenylethynyl and ethynyl groups are disclosed along with the process for forming these polymers.
Hergenrother, P. M.
core   +1 more source

Recent advances of non‐invasive sensors for smart wearable respiratory monitoring

open access: yesVIEW, EarlyView.
Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen   +8 more
wiley   +1 more source

Biomaterial Physical Cues as Gene Regulators for Cellular Agriculture

open access: yesAdvanced Genetics, Volume 7, Issue 2, June 2026.
This review elucidates how biomaterial physical cues—ranging from matrix stiffness to remote electromagnetic fields—serve as extrinsic regulators of gene expression in cellular agriculture. By identifying central mechanotransduction pathways that bridge physical inputs to genetic remodeling, the authors propose the “Material Genome” concept: a ...
Jianuo Liu, Ye Liu
wiley   +1 more source

Integrative Metabolomic and Transcriptomic Profiling Reveals the Chemical and Molecular Basis for Aroma Divergence in Isatis Fruits

open access: yesFood Frontiers, Volume 7, Issue 3, May 2026.
Integrative metabolomic and transcriptomic analyses revealed the chemical and molecular basis of aroma divergence in fruits of three Isatis species. Distinct volatile profiles and 44 key aroma‐active compounds defined species‐specific sensory characteristics, while co‐expression analysis identified NAC transcription factors and lipid‐derived pathway ...
Rong Chen   +10 more
wiley   +1 more source

Joining-by-hydroforming of aluminum and poly(ether ether ketone) – A model experiment

open access: yesAdvances in Industrial and Manufacturing Engineering
Joining-by-hydroforming is a process in which components are joined through expansion under internal pressure. Depending on the required fluid pressure and application rate, this process can be technically demanding and challenging to implement on ...
Florian Weber   +6 more
doaj   +1 more source

Trifluoromethyl-substituted polymers [PDF]

open access: yes
The synthesis of polymers is discussed. It includes: (1) the synthesis of fluorine-containing crosslinked poly(ether ketones); (2) the synthesis and characterization of poly(imide amides) and their N-methylated analogues; (3) the synthesis of fluorine ...
Cassidy, Patrick E.
core   +1 more source

Improving Oxygen Barrier Performance of Polylactide Film by Using Bleached and Unbleached Nanocellulose From Grape Pomace

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 14, April 10, 2026.
Bleached and unbleached nanocelluloses were produced from the exhausted grape pomace and applied as coatings on PLA substrates for sustainable food packaging. Unbleached nanocelluloses were more hydrophobic and amorphous than bleached ones. The resulting bio‐based bleached nanocellulose‐coated PLA films showed a 68% reduction in O2 permeability ...
Jingwen Chen   +6 more
wiley   +1 more source

A Kinetic Framework for the Pyrolysis of Poly(Ether‐Ketone‐Ketone) (PEKK)

open access: yesJournal of Applied Polymer Science, Volume 143, Issue 13, April 5, 2026.
Crosslinking influences poly(ether‐ether‐ketone) (PEKK) pyrolysis. ABSTRACT Research to date on the thermal degradation of poly(ether‐ketone‐ketone) (PEKK) has largely been limited to low temperatures or analysis as part of a composite. Herein, we investigate the pyrolysis kinetics of neat PEKK from 480°C to 1000°C and characterize the degradation by ...
Matthew S. Schwenger   +3 more
wiley   +1 more source

Low-cost automated flat-sheet membrane casting: An open-source, advanced manufacturing approach

open access: yesJournal of Membrane Science Letters
Novel membrane materials developed in research labs struggle to gain widespread industrial adoption due in part to insufficient reproducibility and unreliable performance data.
Nathan Mullins   +3 more
doaj   +1 more source

Streamlined One‐Pot Synthesis of Fused Pyrroles: A Three‐Component Approach

open access: yesChemistryOpen, Volume 15, Issue 4, April 2026.
New modified pyrrole derivatives, namely tetrahydroindol‐4‐ones and pyrrolo[2,3‐d]pyrimidines, functionalized at position 3, were synthesized through a one‐pot multicomponent condensation. Stabilized dimedone enaminones derived from α‐amino acids and their esters (or 6‐amino‐1,3‐dimethyluracil), arylglyoxals, and methylene‐active compounds ...
Kateryna I. Marchenko   +5 more
wiley   +1 more source

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