Results 171 to 180 of about 643,193 (264)

Integrated geochemical and PAH analysis with benthic foraminifera to assess environmental quality in a tropical estuary. [PDF]

open access: yesEnviron Monit Assess
Carneiro LM   +6 more
europepmc   +1 more source

Polarity on Demand: Nucleophilic, Electrophilic, and Ambiphilic Reactivity at a 9,10‐Dihydro‐9,10‐Disilaanthracene Platform

open access: yesChemistry – A European Journal, Volume 32, Issue 33, 1 September 2026.
A 9,10‐dihydro‐9,10‐disilaanthracene platform was efficiently synthesized and features intrinsically electrophilic Si sites. Upon stepwise reductive Si─H bond cleavage, these Si sites are converted into nucleophilic centers. This controlled polarity switching also enables ambiphilic reactivity within a homo‐heteroelement framework.
Moritz Schmidt   +4 more
wiley   +1 more source

An In Vitro and In Vivo Assessment of the Anti‐Breast Cancer Activity of Erythrina excelsa Baker (Fabaceae) Bark Extracts

open access: yesCancer Reports, Volume 9, Issue 9, September 2026.
ABSTRACT Background Breast cancer remains a topic of interest due to its high mortality rate among Cameroonian women. The barks of Erythrina excelsa are traditionally used for medicinal purposes in the management of various conditions including cancer.
Jonas Walantini   +7 more
wiley   +1 more source

Enhanced Circularly Polarised Luminescence via Intramolecular Excimers in Chiral Bis‐Naphthalene‐1,8:4,5‐Tetracarboxydiimide Derivatives

open access: yesChemPhotoChem, Volume 10, Issue 9, September 2026.
Bis‐naphthalene‐1,8:4,5‐tetracarboxydiimide derivatives with a chiral lysine backbone were synthesised. They exhibited intramolecular excimer fluorescence in polar organic solvents and improved circularly polarised luminescence brightness BCPL (12 M−1 cm−1).
Mami Naoe   +6 more
wiley   +1 more source

Antimicrobial activity of the extracts from fruits of Rumex L. species

open access: yesOpen Life Sciences, 2011
Wegiera Magdalena   +3 more
doaj   +1 more source

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