Results 61 to 70 of about 3,681 (218)
Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker
Advanced Functional Materials, Volume 36, Issue 27, 2 April 2026.Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch +7 more
wiley +1 more source
Photolytic release of bioactive carboxylic acids from fused pyran conjugates [PDF]
, 2018 New ester cages bearing the coumarin (2H-benzopyran-2-one) skeleton with extended π-systems as phototriggers, for glycine and β-alanine, as models of carboxylic acid bifunctional molecules with biological relevance, were evaluated under photolysis ...
Conceição, Rafaela +3 more
core +1 more source
Advanced Science, Volume 13, Issue 19, 2 April 2026.Homoisoflavanone (HIF), a bioactive compound isolated from Polygonatum kingianum, selectively suppresses colorectal cancer progression by inducing DNA damage‐mediated mitochondrial apoptosis and parthanatos‐like cell death. HIF triggers mitochondrial dysfunction, including depolarized membrane potential, elevated ROS, and ATP depletion, while impairing
Hongjie Fan +12 more
wiley +1 more source
Natural Product Communications, 2016 Botanicals have been the source for several classes of pesticides for mosquitoes. However, increasing resistance to these products and reduced numbers of choices necessitate the search for new active ingredients. Ageratina altissima (L.) King & H.
Alden S. Estep +2 more
doaj +1 more source
Grupos protectores fotocliváveis para aminoácidos e péptidos [PDF]
, 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
Bioactive 4-hydroxycinnamide and bioactivities of Polyalthia cerasoides [PDF]
Constituents from Polyalthia cerasoides, stem bark methanol extract, were previously documented. This study reports the first isolation of bioactive N-(4-hydroxy-β-phenethyl)-4-hydroxycinnamide (1) from ethyl acetate extract of the plant species ...
Kiatfuengfoo, Rachada +6 more
core +1 more source
Benzo-pyrones for reducing and controlling lymphoedema of the limbs. [PDF]
, 2009 Background Lymphoedema is the accumulation of excess fluid in the body caused by obstruction of the lymphatic drainage mechanisms. Treatment with Benzo-pyrones is thought to reduce fluid forming in the subcutaneous tissues and reduce pain and discomfort ...
Badger, Caroline M. A. +3 more
core +1 more source
Clinical Cardiology, Volume 49, Issue 4, April 2026.Direct Oral Anticoagulants (DOACs) were associated With lower rates of cerebrovascular ischemic events and major bleeding compared With Vitamin K antagonists in non‐valvular atrial fibrillation, With similar mortality. These findings support DOACs as the preferred anticoagulant strategy for stroke prevention in contemporary clinical practice.
Anam Nasir +8 more
wiley +1 more source
A facile and one-pot synthesis of new tetrahydrobenzo[b]pyrans in water under microwave irradiation
BMC Chemistry, 2019 Eleven new tetrahydrobenzo[b]pyran derivatives were synthesized via a three component reaction of different aromatic aldehydes, methyl cyanoacetate and 1,3-cyclohexadione, with water as solvent under catalyst-free microwave irradiation. The structures of
Mandlenkosi Robert Khumalo +3 more
doaj +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]
, 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
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