Results 161 to 170 of about 176,899 (357)

Colorimetric pH-sensitive hydrogel film based on kappa-carrageenan containing quercetin or eucalyptus leaf extract for freshness monitoring of chicken meat

open access: yesFood Chemistry: X
In this study, we created new pH-sensitive hydrogel films using κ-carrageenan (CG) and either quercetin (QUE) or eucalyptus leaf extract (ELE) to monitor the spoilage of chicken meat.
Akbar Mirzaei   +4 more
doaj  

Direct introduction of nitrogen and oxygen functionality with spatial control using copper catalysis. [PDF]

open access: yes, 2018
Synthetic chemists have spent considerable effort optimizing the synthesis of nitrogen and oxygen containing compounds through a number of methods; however, direct introduction of N- and O-functionality remains challenging.
Fisher, David J   +4 more
core  

A Novel Class of Multi‐substituted Diaryl Scaffold Derivatives Inhibit Glioblastoma Progression by Targeting CD155

open access: yesAdvanced Science, EarlyView.
Structural modification of clofoctol yielded a novel blood‐brain barrier‐permeable compound, B7, featuring a multi‐substituted diaryl scaffold. B7 demonstrates potent anti‐glioblastoma activity by suppressing glioblastoma stem cells proliferation, migration, and invasion through interactions with five key residues of poliovirus receptor cell adhesion ...
Yong‐jian Wang   +9 more
wiley   +1 more source

CO2‐DBU‐Triggered Photoredox‐Catalyzed Direct α‐C‐H Alkylation of Alcohols

open access: yesAdvanced Science, EarlyView.
An efficient photoinduced and metal‐free method is developed for direct α‐C–H monoalkylation of alcohols utilizing the CO2‐DBU system as the hydrogen bond acceptor (HBA) in the presence of H2O, allowing for selective functionalization of alcohols with a broad substrate scope.
Zeyu Zhang   +5 more
wiley   +1 more source

Methionine-ethylenediaminetetraacetic acid-chitosan magnetic nanocomposite: A multifunctional organocatalyst for green heteroannulation of imidazoles

open access: yesCarbohydrate Polymer Technologies and Applications
Straightforward procedure for the preparation of a novel magnetic decorated DL-methionine amino acid grafted onto the chitosan backbone using EDTA linker (CS−EDTA−MET@Fe3O4) is described.
Mohammad G. Dekamin   +4 more
doaj  

Design and evaluation of substituted cinnamoyl piperidinyl acetate derivatives as potent cholinesterase inhibitors

open access: yesScientific Reports
In the pursuit of therapeutic agents for Alzheimer’s disease (AD), this study employed a molecular hybridization strategy to design and synthesize substituted cinnamoyl piperidinyl acetates.
Maryam Esmkhani   +3 more
doaj   +1 more source

Layer‐By‐Layer Approach to Improve the Capacitance of Conducting Polymer Films

open access: yesAdvanced Electronic Materials, EarlyView.
This work describes the synthesis and characterization of a composite material based on poly(3,4‐ethylenedioxythiophene) (PEDOT) and poly(3,4‐ethylenedioxypyrrole) (PEDOP) deposited in a layer‐by‐layer approach. Due to the developed electroactive area coming from the presence of 3D nanostructures, PEDOT/PEDOP demonstrates superior areal capacitance ...
Małgorzata Skorupa   +6 more
wiley   +1 more source

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