Results 21 to 30 of about 1,180 (161)

Transannular O‐Heterocyclization Reactions of Cyclododeca‐1,5,9‐triene Derivatives: A New Concept for the Preparation of Key Intermediates for Total Syntheses of Annonaceous Acetogenins

open access: yesHelvetica Chimica Acta, EarlyView.
Four stereogenic centers are formed diastereoselectively in one step from a cyclic (E,E)‐1,5‐diene system using an electrophilic addition reaction. Subsequent ozonolytic cleavage of the intact Z‐double bond, followed by intramolecular nucleophilic substitution, yields an octahydroterfurandione with a threo,cis,threo configuration, an arrangement found ...
Holger Schimanski   +6 more
wiley   +1 more source

Sex-associated differences in baseline urinary metabolites of healthy adults. [PDF]

open access: yes, 2018
The biological basis for gender variability among disease states is not well established. There have been many prior efforts attempting to identify the unique urine metabolomic profiles associated with specific diseases.
Anger, Jennifer T   +6 more
core   +1 more source

Advancements in 3D Printing of Self‐Healing Polymer Systems

open access: yesMacromolecular Materials and Engineering, EarlyView.
This review provides an overview of the most common 3D printing technologies and summarizes the numerous methods to produce self‐healing materials. The challenges and strategies used to adapt these methods to 3D printing are then highlighted to provide a framework for future research in 3D printing self‐healing polymer systems.
Adam L. Bachmann, Bryan S. Beckingham
wiley   +1 more source

Biodegradable active materials containing phenolic acidsfor food packaging applications [PDF]

open access: yes, 2022
[EN] The development of new materials for food packaging applications is necessary to reduce the excessive use of disposable plastics and their environmental impact. Biodegradable polymers represent an alternative means of mitigating the problem.
Atarés Huerta, Lorena María   +2 more
core   +1 more source

Microbial Contributions to Primate Reproduction

open access: yesEvolutionary Anthropology: Issues, News, and Reviews, Volume 35, Issue 1, March 2026.
ABSTRACT Reproduction is a complex process, and microbes play a far greater role than previously imagined. This review explores the ways that microbiomes influence the rich tapestry of reproductive processes and outcomes within the primate lineage, including pre‐copulatory and post‐copulatory mechanisms.
Silvia Carboni   +2 more
wiley   +1 more source

Chiral rings from BINOL dicarboxylic acids and alkane ditine (IV) linkers

open access: yes, 2012
The first series of building blocks for metal-organic frameworks (MOFs) utilizing the (S)-2,2′-diethoxy-1,1′-binaphthyl-6,6′-dicarboxylic acid ligand linked with a number of α,ω-bis(chlorodiorganostannyl) alkane spacers and α,ω-bis(dichloroorganostannyl)
Dakternieks, Dainis   +2 more
core   +1 more source

Synthesis and complexing properties of cyclic benzylopeptoids-a new family of extended macrocyclic peptoids [PDF]

open access: yes, 2016
An efficient protocol for the solid-phase synthesis of six members of a new class of extended macrocyclic peptoids (based on ortho-, meta- and para-N-(methoxyethyl)aminomethyl phenylacetyl units) is described.
Costabile, C.   +9 more
core   +1 more source

Effects of Probiotic Supplementation on Symptoms and Microbiome Characteristics in Patients With Non‐Celiac Gluten/Wheat Sensitivity: A Randomized Controlled Double‐Blind Trial

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
This randomized, double‐blind, placebo‐controlled trial demonstrated that probiotic supplementation in individuals with non‐celiac gluten/wheat sensitivity improved tolerance to gluten reintroduction in nearly half of participants. The effect was associated with beneficial shifts in gut microbiome composition and function, including enhanced microbial ...
Ilario Ferrocino   +14 more
wiley   +1 more source

Organocatalyzed Atom Transfer Radical Polymerization (O‐ATRP) Using a Super‐Reducing Photoredox Catalyst

open access: yesAngewandte Chemie, Volume 137, Issue 47, November 17, 2025.
A super‐reducing organic photocatalyst expands the scope of O‐ATRP to challenging initiators and monomers. The system enables controlled polymerizations with air tolerance, temporal regulation, and grafting‐from strategies, highlighting the transformative potential of super‐reducing PCs in reversible‐deactivation radical polymerization.
Yucheng Zhao   +9 more
wiley   +2 more sources

Characterization of Key Aroma Compounds in Botanical Lujiu Based on Jiang‐Flavor Baijiu by Comparative Aroma Extract Dilution Analysis, Quantitative Measurements, and Aroma Traceability Analysis

open access: yesFood Science &Nutrition, Volume 14, Issue 1, January 2026.
A novel botanical Lujiu with distinctive flavor characteristics was successfully developed based on Jiang‐flavor baijiu through laboratory‐scale production. Optimized quantitative analysis identified key aroma‐active compounds through a sensomics approach, and a high‐sensitivity method was validated.
Yongsu Li   +4 more
wiley   +1 more source

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