Results 101 to 110 of about 5,456,471 (384)

Comparison of Three Solid Phase Materials for the Extraction of Carboxylic Acids from River Water Followed by 2D GC × GC-TOFMS Determination

open access: yesInternational Journal of Analytical Chemistry, 2016
The extraction and determination of aliphatic and aromatic carboxylic acids as well as their influence on the aromaticity and molecularity relationship of natural organic matter (NOM) in water are reported in this study. Three solid phase extraction (SPE)
G. O. Bosire, J. C. Ngila, H. Parshotam
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

The synthesis, transformations and biological activity of thieno[2,3-d]pyrimidine derivatives with the carboxylic groups as the substituents in the pyrimidine ring

open access: yesЖурнал органічної та фармацевтичної хімії, 2020
Aim. To reveal the prospects of the search of novel medicinal substances based on the studies of the derivatives of thieno[2,3-d]pyrimidine with the carboxylic groups as the substituents in the pyrimidine ring using the analysis of the published ...
O. D. Vlasova   +3 more
doaj   +1 more source

Progress in the Photoreforming of Carboxylic Acids for Hydrogen Production [PDF]

open access: diamond, 2022
Anita Samage   +4 more
openalex   +1 more source

DENTA: A Dual Enzymatic Nanoagent for Self‐Activating Tooth Whitening and Biofilm Disruption

open access: yesAdvanced Functional Materials, EarlyView.
The nanoapatite with dual enzymes (DENTA) accumulates in dentinal tubules, reducing hypersensitivity caused by dental nerve exposure and facilitating continuous ROS generation through salivary glucose for effective, long‐term whitening. The dentin structures remain non‐destructive due to the low concentration of ROS, demonstrating excellent cell ...
Junseok Kim   +13 more
wiley   +1 more source

Geometry and conformations of benzenecarboxylic acids [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The geometry, conformations and energy of mono-, di-, and tri-carboxylic derivatives of benzene were studied by means of the AM1 molecular-orbital method.
IVAN GUTMAN   +2 more
doaj  

Effectiveness of synthetic versus natural human volatiles as attractants for Anopheles gambiae (Diptera: Culicidae) sensu stricto [PDF]

open access: yes, 2010
Females of the African malaria vector, Anopheles gambiae Giles sensu stricto, use human volatiles to find their blood-host. Previous work has shown that ammonia, lactic acid, and aliphatic carboxylic acids significantly affect host orientation and ...
Knols, B.G.J.   +2 more
core   +2 more sources

Photocatalytic hydrofluoroalkylation of alkenes with carboxylic acids

open access: yesNature Chemistry, 2023
Kang‐Jie Bian   +5 more
semanticscholar   +1 more source

Criegee Intermediate Reactions with Carboxylic Acids: A Potential Source of Secondary Organic Aerosol in the Atmosphere

open access: yesACS Earth and Space Chemistry, 2018
Trace atmospheric concentrations of carboxylic acids have a potent effect upon the environment, where they modulate aqueous chemistry and perturb Earth’s radiative balance.
R. Chhantyal-Pun   +12 more
semanticscholar   +1 more source

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

open access: yesAdvanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh   +4 more
wiley   +1 more source

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