Results 61 to 70 of about 3,529 (194)

Grupos protectores fotocliváveis para aminoácidos e péptidos [PDF]

open access: yes, 2005
Tese de mestrado em Química, especialização em Ensino.O objectivo primário deste trabalho consistiu na síntese de novos derivados de heterociclos de oxigénio, os ácidos nafto[2,1-b]furan-1-il etanóicos e os 1-clorometil-3- oxo-3H-benzo[f]benzopiranos e
Piloto, Ana M.
core  

Graphene Oxide-Supported Oxime Palladacycles as Efficient Catalysts for the Suzuki–Miyaura Cross-Coupling Reaction of Aryl Bromides at Room Temperature under Aqueous Conditions [PDF]

open access: yes, 2017
Palladacycles are highly efficient precatalysts in cross-coupling reactions whose immobilization on carbonaceous materials has been hardly studied.
Alonso, Diego A.   +2 more
core   +2 more sources

Bioactive Phytochemical Compounds in Medicago sativa L. (Alfalfa): A Systematic Review of Biological Properties and Therapeutic Relevance in Nutraceutical and Functional Food Implications

open access: yesFood Frontiers, Volume 7, Issue 2, March 2026.
ABSTRACT Medicago sativa L. (alfalfa) harbors a remarkably diverse reservoir of bioactive secondary metabolites. Flavonoids, isoflavones, and triterpenoid saponins dominate its bioactivity landscape, driving potent antioxidant, anti‐inflammatory, antimicrobial, estrogenic, hypolipidemic, and cytotoxic actions through redox modulation, membrane ...
Parham Joolaei Ahranjani   +3 more
wiley   +1 more source

The Exploration of Natural Compounds for Anti-Diabetes from Distinctive Species Garcinia linii with Comprehensive Review of the Garcinia Family

open access: yesBiomolecules, 2019
Approximately 400 Garcinia species are distributed around the world. Previous studies have reported the extracts from bark, seed, fruits, peels, leaves, and stems of Garcinia mangostana, G. xanthochymus, and G.
Ting-Hsu Chen   +3 more
doaj   +1 more source

Mycochemical Diversity and Therapeutic Potential of Hymenochaetoid Fungi from Central Asia: Regional and Global Perspectives

open access: yesNew Zealand Journal of Botany, Volume 64, Issue 1, March 2026.
Central Asia harbors a rich yet understudied assemblage of wood‐inhabiting Hymenochaetoid fungi. This review delivers the first comprehensive synthesis of 43 poroid species representing 18 genera documented across montane forests, steppes, and xeric habitats.
Yusufjon Gafforov   +16 more
wiley   +1 more source

Phytochemicals and Anti-Inflammatory Activity of Melicope Ptelefolia Champ Ex Benth [PDF]

open access: yes, 2005
Leaves of Melicope ptelefolia Champ ex Benth were examined for phytochemicals. Using various chromatography techniques such as normal column chromatography, gel filtration on sephadex LH-20 and radial chromatography seven compounds were isolated ...
Suryati,
core  

Complexation of Anthocyanin‐Rich Blackberry Extract With Ozonated Sodium Alginate: Structural, Rheological, and Color Insights

open access: yesJournal of Food Science, Volume 91, Issue 2, February 2026.
ABSTRACT Anthocyanins, valued for their health‐promoting properties and their role as natural pigments, are highly susceptible to degradation, highlighting the need for strategies to improve their stability. Biopolymer‐based systems are an alternative for interacting with and safeguarding these bioactive compounds.
Camila Yamashita   +7 more
wiley   +1 more source

Photolysis at long wavelengths of amino acid ester derivatives based on 4-methyl-6-methoxy-2-oxo-2H-naphtho[1,2-b]pyrans [PDF]

open access: yes, 2011
Ester derivatives of fused 4-methyl-6-methoxy-2-oxo-2H- naphtho[1,2-b]pyran, using valine and phenylalanine as model bifunctional molecules were synthesised, to assess its applicability as a photocleavable protecting group, for solution phase organic ...
Costa, Susana P. G.   +4 more
core  

Temperature‐Tunable Heliconical and Ferroelectric Nematics for White Lasing

open access: yesAdvanced Materials, Volume 38, Issue 1, 2 January 2026.
The discovery of the ferroelectric nematic (NF) phase in 2017 and the spontaneous symmetry‐breaking of the ferroelectric twist‐bend nematic (NTBF)phase in 2024 have made major breakthroughs in the context of self‐assembly materials. This study presents pioneering temperature and voltage‐tunable lasing in both phases, demonstrating multicolor and in ...
Alina Barbara Szukalska   +6 more
wiley   +1 more source

Identification of benzopyrone as a common structural feature in compounds with anti-inflammatory activity in a zebrafish phenotypic screen. [PDF]

open access: yes, 2016
Neutrophils are essential for host defence and are recruited to sites of inflammation in response to tissue injury or infection. For inflammation to resolve, these cells must be cleared efficiently and in a controlled manner, either by apoptosis or ...
Arur   +59 more
core   +4 more sources

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