Results 61 to 70 of about 25,055 (235)

Thermal Stability of Polyoxometalate Compound of Keggin K8[2-SiW11O39]∙nH2O Supported with SiO2 [PDF]

open access: yes, 2016
Synthesis through sol-gel method and characterization of polyoxometalate compound of K8[b2-SiW11O39]∙nH2O supported with SiO2 have been done. The functional groups of polyoxometalate compound  was characterized by FT-IR spectrophotometer for the ...
A, Y. S. (Yunita)   +1 more
core   +1 more source

Clonal Cocoa Varieties Growth and Leaf Non‐Structural Carbohydrate Response to Field Stress Conditions

open access: yesPlant-Environment Interactions, Volume 7, Issue 3, June 2026.
ABSTRACT This study investigated the growth and leaf metabolism of clonal cocoa varieties in response to field stress conditions during wet and dry seasons. It was hypothesized that clonal cocoa varieties differ in their growth, photochemical efficiency, relative water content and central carbon metabolism under seasonal field stress conditions ...
Moses Kwame Aidoo   +4 more
wiley   +1 more source

Achieving Near‐Complete Dechlorination of Poly(vinyl chloride) via Electrochemical Reduction

open access: yesChemSusChem, Volume 19, Issue 10, 27 May 2026.
A one‐pot controlled‐voltage electrolysis achieved up to 97% dechlorination of poly(vinyl chloride) using common plasticizers as redox mediators. The liberated chloride ions were oxidized at the anode and utilized in a subsequent arene chlorination, offering a route for repurposing the chlorine from PVC.
Rahul Kant Jha   +4 more
wiley   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

open access: yesMolecular Oncology, Volume 20, Issue 5, Page 1202-1219, May 2026.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller   +17 more
wiley   +1 more source

Characterization of Co(II)-PAMAM dendrimer complexes with polypropylene oxide core by using UV-VIS spectroscopy

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2016
The aim of this study was to characterize poly(amidoamine) (PAMAM) dendrimer complexes of Co(II) ions by using UV-Vis spectroscopy. For this aim, a generation-4 polypropylene oxide (Jeffamine® T-403) cored and amine-terminated PAMAM dendrimer (P4) was ...
Ali Serol Ertürk   +3 more
doaj   +1 more source

Prenucleation Species Dictate Foreign Ion Incorporation in the Biomineral Precursor Amorphous Calcium Carbonate

open access: yesAdvanced Functional Materials, Volume 36, Issue 36, 4 May 2026.
ACC forms via aggregating prenucleation clusters that gatekeep its chemical composition. Ion identity steers the path: Ba and Sr substitute Ca in clusters, thereby inhibiting nucleation, with a dose‐dependent switch of Sr to induction. Mg partitions into Mg‐rich and Mg‐poor clusters; the latter form ACC, expelling Mg.
Qianyu Zhao   +9 more
wiley   +1 more source

Determination of Total Manganese in Manganese Ores with an Automatic Potentiometric Titration Method

open access: yesYankuang ceshi, 2013
In the batch analysis of manganese content in manganese ore with artificial titration method, it consumes a large amount of manual labor. With the popularity of automatic potentiometric titrator, it is possible to complete the volumetric titration using ...
MA De-qi   +4 more
doaj  

An Automatic Potentiometric Titration Testing Method for Active Chlorine Content Detection in the Phosphate Ester Fire-Resistant Fluids

open access: yesZhongguo dianli, 2019
The detection of active chlorine content in the phosphate ester fire-resistant fluids is of great importance for the electro-hydraulic control system.
Julan MING   +6 more
doaj   +1 more source

Synthesis of trimethylolpropane trioleate by using stannous oxalate catalyst

open access: yesBiofuels, Bioproducts and Biorefining, Volume 20, Issue 3, Page 1587-1595, May/June 2026.
Abstract This study was conducted to synthesize trimethylolpropane trioleate (TMPTO) using a stannous oxalate catalyst and investigate the dependence of the esterification rate on reaction variables. The highest esterification rate of approximately 99% was achieved at a 2.75:1 oleic acid/trimethylolpropane, 1.5% catalyst amount, 180°C reaction ...
Oguzhan Ilgen, Sumeyye Bilgic
wiley   +1 more source

Some of the oxidation-reduction properties of the chorionic gonadotropic hormone [PDF]

open access: yes, 1941
Gurin, Bachman, and Wilson (1-3) have recently made important contributions to our knowledge of the chemical nature of the gonadotropic hormone of pregnancy urine.
Bowman, Donald E.
core  

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