Results 41 to 50 of about 39,305 (203)

Organic photonic synaptic transistors for bionic vision: From spectral engineering to flexible intelligent perception

FlexMat, EarlyView.
Different wavelength photonic synapses are used for biomimetic visual applications. Abstract Bionic intelligent visual perception systems have significant application prospects in fields such as autonomous driving and robotics, medical imaging and auxiliary diagnosis, security and monitoring.
Longlong Jiang, Shan Wu, Silu Feng, Heyi Huang, Wangyu Wu, Hong Han, Yao Ni   +6 more
wiley   +1 more source

A Facile One-Pot and Green Multi-Component Synthesis of 2-Amino-4H-pyrans Promoted by Pyridinium p-Toluenesulfonate in Aqueous Medium [PDF]

, 2016
International audienceBackground: 4H-benzo[b] pyran derivatives have attracted great interest due to biological and pharmacological properties including antimicrobial, antiviral, antipro liferative, sex pheromone, antitumor, cancer therapy, central ...
Boureghda, Chaima, Debache, Abdelmadjid, Carboni, Bertrand, Khodja, Imène Amine, Boulcina, Raouf, Kermiche, Oumeima   +5 more
core   +1 more source

Photochromic carbazole photoinitiators for precision visible‐light photopolymerization

Polymer International, EarlyView.
New carbazole–naphthopyran derivatives were employed as visible‐light‐activated photoinitiators, enabling rapid and localized radical photopolymerization to produce well‐defined thin solid objects within minutes. Abstract Two carbazole derivatives, each incorporating a naphthopyran unit and an aromatic ketone, were synthesized and evaluated as ...
Mauro Magalhães, Céu M Sousa, José R Fernandes, Paulo J Coelho   +3 more
wiley   +1 more source

Energy Transfer in Nanodroplet‐Based Luminescent Solar Concentrators

Small, EarlyView.
We present novel luminescent solar concentrators (LSCs) featuring polymer composites with fluorescent dye‐doped oil nanodroplets. This liquid environment ensures high dye solubility and preserves fluorescence quantum yields, even at high local dye concentrations.
Lorenzo Vallan, Julia W. Mikurenda, Alex Parra Sánchez‐Camacho, Maria Lili, Sebastian J. M. Robben, Stefan C. J. Meskers, Michael G. Debije, Claudio Roscini   +7 more
wiley   +1 more source

Crystal Structures and Magnetic Properties of Coordination Polymer Complexes of Metal Ions With Kojic Acid Ligands

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
One‐dimensional coordination polymers of Cu(II) and Co(II) with kojic acid show distinct chain connectivities revealed by X ray crystallography and exhibit extremely weak magnetic interactions, as supported by magnetic measurements and molecular orbital calculations. The crystal structures and magnetic properties of coordination complexes [Cu(C6H5O4)2]
Wataru Fujita, Tomoko Yamaguchi
wiley   +1 more source

Ionic liquid–driven pyran synthesis: Pathways and perspectives

Journal of Ionic Liquids
Pyrans and their fused derivatives are privileged oxygen heterocycles with broad biological activity and industrial relevance, yet their sustainable synthesis remains a continuing challenge.
Pravas Maity, Amrit Krishna Mitra
doaj   +1 more source

Organocatalytic clean synthesis of densely functionalized 4H-pyrans by bifunctional tetraethylammonium 2-(carbamoyl)benzoate using ball milling technique under mild conditions

Green Chemistry Letters and Reviews, 2016
A green and simple method has been developed for efficient preparation of diverse annulated 2-amino-3-cyano-4H-pyran derivatives in the presence of a low loading of tetraethylammonium 2-(carbamoyl)benzoate (TEACB), as a bifunctional organocatalyst, under
Mohammad G. Dekamin, Mohammad Alikhani, Shahrzad Javanshir   +2 more
doaj   +1 more source

Resilience of floral scent emission after florivory

Plant Biology, EarlyView.
Florivory is thought to affect floral traits, impacting pollination. However, our data suggest a stability in post‐florivory scent emission, which may guarantee the maintenance of pollinator visitation regardless of florivory, indicating a resilience of natural systems with multiple and simultaneous interactions. Created in BioRender. Tunes, P.
P. Tunes, Y. Canaveze, S. R. Machado, S. Dötterl, E. Guimarães   +4 more
wiley   +1 more source

The synthesis of 4H-pyran containing hemispherands via pyrylium salts [PDF]

Tetrahedron Letters, 1986
Two new hemispherands 2a and 2b containing a central 4H-pyran unit were synthesized via appropiately substituted 2,6-phenyl pyrylium salts; largest ΔGo values of complexation of 2a and 2b with different alkali picrates are found for Na+ and K+.
Dijkstra, Pieter J., van Steen, B.J., Hams, B.H.M., den Hertog, H.J., Reinhoudt, David   +4 more
openaire   +2 more sources

Interactions of Plant Protein and Natural Colorant: A Structural and Functional Relationship of Broccoli Protein and Marigold Color Compounds

Food Frontiers, Volume 7, Issue 4, July 2026.
Graphical representation of the interactions of the structural and functional relationships of broccoli flower protein (BFP) and marigold color compounds (MCC). This research examines BFP–MCC interactions of extracted marigold color, chemical composition, and functional attributes.
Fidele Benimana, Kentaro Kawata, Anand Mohan   +2 more
wiley   +1 more source