Results 171 to 180 of about 5,176 (336)

Color stability in intracoronal whitening

open access: yesRevista Cubana de Estomatología, 2020
Introduction: Intracoronal whitening is a minimally invasive procedure to restore natural color to stained non-vital teeth. The color stability achieved is fundamental to evaluate the predictability of this type of treatment.
Fernando José Peña Bengoa   +3 more
doaj  

The Phenolic Content and Bioactivity Assessment of Rubus sanctus Schreber Species with Potential for Food and Ethnopharmacological Uses

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT In this study, the phytochemical content and various biological activities of Rubus sanctus Schreber species, widely distributed in Turkiye and used in folk medicine, were determined. The ethanol extracts of the root and aerial parts of the species were prepared and their bioactive phytochemical composition was identified by liquid ...
Ismail Yener
wiley   +1 more source

Microfiltración marginal de resinas compuestas tras la aplicación de agentes blanqueadores: estudio in vitro [PDF]

open access: yes, 2010
52 p.Introducción: El uso de peróxido de hidrógeno, se ha vuelto la modalidad de tratamiento más utilizada por los profesionales para el blanqueamiento dental.
Bravo Cavicchioli, Daniel (Prof. Guía)   +1 more
core  

Ethnomedicinal Uses, Phytochemistry, Pharmacological Activities, and Toxicology of the Subfamily Gomphrenoideae (Amaranthaceae): A Comprehensive Review

open access: yesChemistry &Biodiversity, EarlyView.
ABSTRACT The subfamily Gomphrenoideae is composed of about 480 accepted species, many of which have been historically used as medicinal plants, reason why they have been studied in terms of chemical profile, biological activity, and safety. This review consolidates the advances in research on this subfamily over the past 47 years, emphasizing its ...
Dayanna Isabel Araque Gelves   +3 more
wiley   +1 more source

On the Relevance of Edge and Corner Sites in the Electrocatalytic Production of H2O2 over Supported Ni Catalysts

open access: yesChemCatChem, EarlyView.
For the electrocatalytic production of H2O2 over carbon‐supported Ni catalysts, edge and corner atoms are the active sites. Terrace sites are active for the undesired 4 electron reduction reaction resulting in the formation of OH−. Abstract Electrocatalytic hydrogen peroxide (H2O2) production, over Ni‐based catalysts, through 2 electron oxygen ...
Ivo J. van Luijk   +3 more
wiley   +1 more source

Laser‐Induced Graphene for Early Disease Detection: A Review

open access: yesChemElectroChem, Volume 12, Issue 6, March 15, 2025.
Laser‐induced graphene (LIG) has emerged as a superior alternative to conventionally synthesized graphene due to its flexibility, cost‐effectiveness, scalability, high conductivity, and the ability to customize its properties for various applications. This review highlights LIG′s transformative potential in electrochemical biosensing, focusing on early
Sri Ramulu Torati, Gymama Slaughter
wiley   +1 more source

Cathode Materials for Proton Exchange Membrane Fuel Cells: From Metal and Metal Composite Catalysts to Carbon‐Supported Hybrids in Oxygen Reduction Reaction

open access: yesChemElectroChem, EarlyView.
This review highlights recent progress in the development of electrocatalysts for the oxygen reduction reaction in proton exchange membrane fuel cells (PEMFCs). Particular focus is given to structure–activity relationships, active site identification, and the role of noble and non‐noble metals, with insights into synthetic strategies and performance in
Claudia Garcés‐Barría   +5 more
wiley   +1 more source

Sonochemical‐Assisted Synthesis of Ultrathin NiCu layered Double Hydroxide for Enhanced CN Coupling toward Electrocatalytic Urea Synthesis

open access: yesSmall Science, EarlyView., 2023
A multidimensional hybrid material of ultrathin NiCu layered double hydroxide (LDH) nanosheets (<2 nm) on carbon nanofiber (u‐NiCu‐LDH/CNF) is synthesized through an ultrasonic‐assisted solvothermal method, which shows stable and significantly enhanced electrocatalytic activity in CN coupling of urea production due to its robust structure, large ...
Hele Guo   +4 more
wiley   +1 more source

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