Results 61 to 70 of about 18,361 (259)

PENENTUAN KANDUNGAN LOGAM ESENSIAL (Fe, Zn DAN Cu) DALAM DAUN SIRIH MERAH (Piper crocatum) SEGAR, AIR REBUSAN DAN AIR SEDUHANNYA DENGAN METODE SPEKTROSKOPI SERAPAN ATOM(SSA)

open access: yesJurnal Riset Kimia, 2015
Vol 7 No 2 ABSTRACT Determination of essential metals (Fe, Zn and Cu) in red betel leaf has been carried out by using Atomic Absorption Spectrophotometer (AAS).
Indrawati -, Willsant Saputra, Refilda -
doaj   +1 more source

Self‐Sustaining Lactate Depletion Nanoplatform Remodels Tumor Microenvironment and Augments Synergistic Photodynamic/Photothermal/Chemodynamic/Starvation Therapy for Eradication of Colon Cancer

open access: yesAdvanced Science, EarlyView.
The HILA nanoplatform integrates HMnO2, LOX, and ICG to orchestrate multimodal therapy (starvation, chemodynamic, photodynamic, and photothermal) for achieving efficient colon cancer eradication. The established HMnO2‐LOX catalytic cycle continuously consumes lactate, acidifys microenvironment, relieves hypoxia, and generats reactive oxygen species ...
Yu‐E. Wang   +11 more
wiley   +1 more source

Boosting Photocatalytic Overall Water Splitting Activity of Phosphorene Through Five‐Coordinate Passivation Enabled by Carbene Addition

open access: yesAngewandte Chemie, EarlyView.
We report selective five‐coordinate passivation of phosphorene via P═C double bonds using a facile one‐step photochemical reaction via carbene addition. The ambient stability of functionalized phosphorene has been substantially improved compared to the pristine phosphorene.
He Zhang   +12 more
wiley   +2 more sources

DETERMINATION OF NI(II) IN ALLOYS USING A NEW REAGENT DERIVED FROM L-DOPA

open access: yesEclética Química, 2018
A simple and sensitive UV-Vis spectrophotometric method was developed using a new chromogenic reagent, L-dopasemiquinone, for the quantification of Ni(II) in metallic alloys: Inox, Co-Cr, and Ni-Ti.
Wagner José Barreto   +6 more
doaj   +1 more source

Cerium Nanoparticle‐Mediated Inhibition of the NSUN2/m5C Axis Suppresses Synovial Aggression in Rheumatoid Arthritis

open access: yesAdvanced Science, EarlyView.
A novel epitranscriptomic mechanism in rheumatoid arthritis is uncovered: NSUN2 promotes disease via m5C‐dependent stabilization of ICMT mRNA, fueling the migration and invasion of pathogenic RA FLS. Targeting this axis with engineered nanoparticles (Ce/SAA NPs) effectively inhibits disease progression, presenting a precise therapeutic strategy ...
Ruiru Li   +15 more
wiley   +1 more source

Cuantificación de metales pesados (Hg, As, Pb y Cr) en organismos acuáticos: cangrejo rojo (Ucides occidentalis)

open access: yesCiencia UNEMI, 2015
The objective of this research was to determine by atomic absorption spectrophotometry (AAS), the concentration of heavy metals (lead, chromium, arsenic and mercury) in the soft tissue of the red crab (Ucides occidentalis).
Ayala-Armijos, Humberto   +4 more
doaj  

Oral Prebiotic Polysaccharide Hydrogels Sustaining Colon Antibody Release Alleviate Inflammatory Bowel Disease

open access: yesAdvanced Science, EarlyView.
An orally administered prebiotic polysaccharide hydrogel (predaGel) based on inulin and alginate‐dopamine is stable in the stomach, adheres to the intestine, and degrades slowly in the colon. It enables site‐specific delivery of anti‐TNF‐α and anti‐IL‐12/23 antibodies, scavenges reactive oxygen species, and remodels gut microbiota, offering effective ...
Xinyi Dong   +4 more
wiley   +1 more source

The anti-corrosion behaviour of Satureja montana L. extract on iron in NaCl solution

open access: yesOpen Chemistry, 2019
The effect of Satureja montana L. extract (SM) and phenolic fraction of Satureja montana L. (PF) on the corrosion behaviour of iron in 0.1 mol L-1 sodium chloride solution was studied by electrochemical techniques, UV/Vis spectrophotometry and atomic ...
Pilić Zora   +2 more
doaj   +1 more source

Microenvironment‐Responsive Nanomedicine Enables Vertical Modulation of Mitochondrial Pathological Networks in Myocardial Ischemia–Reperfusion Injury

open access: yesAdvanced Science, EarlyView.
A mitochondria‐targeted, microenvironment‐responsive nanoplatform enables pH/ROS‐triggered co‐delivery of berberine and isoliensinine to orchestrate ROS scavenging, inflammation suppression, and apoptosis inhibition. This vertical modulation of mitochondrial pathological networks preserves mitochondrial function and effectively mitigates myocardial ...
Jue Wang   +11 more
wiley   +1 more source

Effect of re-casting on release of elements from one base metal alloy

open access: yesمجله دانشکده دندانپزشکی اصفهان, 2012
Introduction: Toxicity of dental alloys depends on their composition and element release, which may, in turn, be affected by re-casting of the alloy. The aim of this study was to evaluate the effect of re-casting on the release of elements from Verabond ...
Farshad Bajoghli   +2 more
doaj  

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