Results 241 to 250 of about 122,768 (319)

Redox‐Activated Near Infrared/Shortwave Infrared Emissive Chromophores: Synthesis of Triphenylamine‐Appended Pyrazinacenes

open access: yesAngewandte Chemie International Edition, EarlyView.
Redox‐active triphenylamine‐appended pyrazinacenes show extreme reversible redox‐coupled switching of their photophysical properties. In their reduced state, absorption and emission bands fall well within the visible region. Oxidation results in a shift in the absorption and fluorescence bands to the near infrared and short‐wave infrared regions while ...
Gary J. Richards   +9 more
wiley   +1 more source

A 1600-year record of extreme rainfall in northern Arabia. [PDF]

open access: yesSci Adv
Purkis SJ   +10 more
europepmc   +1 more source

Assessing the efficiency of ethyl acetate for lipid extraction as an alternative to the Folch method in selected marine low‐trophic species

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
The EtOAc method offers a straightforward and environmentally friendly protocol for lipid extraction, showing efficiency comparable to the Folch method, particularly in extracting lipids with high proportions of neutral lipids and free fatty acids. Abstract The recognized health benefits associated with marine omega‐3 polyunsaturated fatty acids (PUFAs)
Ying Wang   +3 more
wiley   +1 more source

Electro-driven direct lithium extraction from geothermal brines to generate battery-grade lithium hydroxide. [PDF]

open access: yesNat Commun
Kong L   +10 more
europepmc   +1 more source

Evidence for crustal brines and deep fluid infiltration in an oceanic transform fault. [PDF]

open access: yesSci Adv
Chesley C   +14 more
europepmc   +1 more source

Behavior of Polyamide Brackish Water Reverse Osmosis Membranes in Acidic NaOCl Environment

open access: yesJournal of Applied Polymer Science, EarlyView.
The study investigates the effect of chlorination by NaOCl in acidic pH on RO membranes. A sudden drop in the pure water flux is observed post‐chlorine exposure, along with increased crystallinity of the polyamide layer; the flux increases after salt passage. This is attributed to conformational changes at low chlorine concentrations.
Srija Madduri   +4 more
wiley   +1 more source

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