Results 61 to 70 of about 1,001,992 (274)

Comprehensive Analysis of the Degradation Phenomena of Proton Exchange Membrane Water Electrolyzers with Iridium on Antimony Tin Oxide Anodes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study examines the structural and chemical evolution of low‐loaded Ir/ATO anodes during PEM water electrolysis under realistic conditions. Iridium dissolution is largely suppressed. In the early stages, both ionomer and support degradation are detected. Morphological reorganization occurs at the interface between the anode catalyst layer (ACL) and
Sambal Shashank Ambu, Nikolai Utsch, Tobias Morawietz, Maria Retuerto, Sergio Rojas, Oleg Usoltsev, Miriam Goll, Daniel García Sanchez, Andreas Glüsen, Aldo Saul Gago, Seyed Schwan Hosseiny, Kaspar Andreas Friedrich   +11 more
wiley   +1 more source

Modifications in Glass Ionomer Cements: Nano-Sized Fillers and Bioactive Nanoceramics

International Journal of Molecular Sciences, 2016
Glass ionomer cements (GICs) are being used for a wide range of applications in dentistry. In order to overcome the poor mechanical properties of glass ionomers, several modifications have been introduced to the conventional GICs. Nanotechnology involves
S. Najeeb, Z. Khurshid, Muhammad Sohail Zafar, A. Khan, Sana Zohaib, J. Martí, S. Sauro, J. Matinlinna, I. Rehman   +8 more
semanticscholar   +1 more source

Perceived Educational Value of a Self‐Developed 3D‐Printed Pediatric Dentistry Simulator

Journal of Dental Education, EarlyView.
ABSTRACT Purpose To design and assess a 3D‐printed pediatric dentistry simulator and to evaluate its perceived educational value and realism through student and expert feedback. Methods A maxillary simulator that is mountable on phantom heads was developed and produced by desktop stereolithography with single‐use inserts, enabling proximal caries ...
Michel Benyamin, Sandrella Hamdan, Timothy Fasham, Samuel Morice, Stephane Le Goff, Maria‐Antonietta D'Agostino, Marie Jannot, Yasmine Smail, Jean‐Pierre Attal, Hélène Gouze, Elisabeth Dursun, Philippe Francois   +11 more
wiley   +1 more source

The Efficacy Of Glass Ionomer Hybrid As Orthodontic Brackets Adhesives To Inhibit Calsium Released Of The Enamel

Insisiva Dental Journal, 2012
Composite resins are predominantly used to bond orthodontic brackets onto teeth. These can lead to calcium released of the enamel surrounding the brackets.
Rina Sutjiati
doaj   +1 more source

Nanoplastics in Depolymerization Products from Hydrolysis of Poly(Ethylene Terephthalate) in the Solid State

Macromolecular Rapid Communications, EarlyView.
Hydrolysis of PET in the solid generates nanoparticles, but thermal signatures of PET were only observed for hydrolysis at 150°C, while oligomers appeared to dominate the non‐monomeric products from hydrolysis at higher temperatures. ABSTRACT Circularity in plastic waste management through depolymerization to monomer is a promising route to address ...
Sierra F. Yost, Peter M. Guirguis, Patricia Pereira, Philip E. Savage, Bryan D. Vogt   +4 more
wiley   +1 more source

Dental composites: a comprehensive review on formulation, properties and recent developments

Polymer International, EarlyView.
Dental composites are essential in modern restorative dentistry; this review covers their development, composition, key properties and recent advances, highlighting new technologies for optimizing materials and improving clinical outcomes. Abstract Dental composites have evolved considerably since their introduction, becoming the cornerstone of modern ...
Rayenne Latoui, Djallel Bouzid, Olivier Boyron   +2 more
wiley   +1 more source

Effects of surface treatments of conventional glass-ionomer on shear bond strength to giomer

Dental Research Journal, 2012
Background : An appropriate bond between glass-ionomer and the superficial resin materials is very important for the success of sandwich technique.
Soodabeh Kimyai, Narmin Mohammadi, Parnian Alizadeh Oskoee, Mohammad Esmaeel Ebrahimi Chaharom, Mahmood Bahari, Alireza Sadr, Ghazaleh Ahmadizenouz   +6 more
doaj   +1 more source

In Situ Surface Reconstruction and Carbon Encapsulation for High‐Performance Pt‐Lean Catalysts beyond Conventional Core–Shell Designs

Small, EarlyView.
A one‐step in situ fabrication produces Pt‐segregated nanoparticles encapsulated in porous carbon shells. This design drastically reduces Pt content while maintaining high oxygen reduction reaction activity and long‐term durability. The catalyst meets DOE targets even at ultralow Pt loading, presenting a practical pathway toward cost‐effective, high ...
Jiho Min, Jeong Hee Lee, Keonwoo Ko, Yunjin Kim, Hyelim Park, Mansu Kim, Dongwook Lee, Sung‐Dae Yim, Yun Sik Kang, Joseph T. Hupp, Sung Jong Yoo, Namgee Jung   +11 more
wiley   +1 more source

Laying the Foundation for Digital Material Design of Porous Transport Electrodes for PEM Water Electrolysis With Multiscale Tomography

Small, EarlyView.
This paper presents the first multiscale identical location tomography of a porous transport electrode for PEM water electrolysis. Different tomography and modeling approaches determine the relevant structural properties ranging from micrometer‐thick fibers to nanometer‐thin binder films covering the catalyst particles.
Markus Bierling, David McLaughlin, Andreas Hutzler, Mingjian Wu, Darius Hoffmeister, Dennis Chalupczok, Erdmann Spiecker, Thomas Böhm, Simon Thiele   +8 more
wiley   +1 more source

Evaluation of wear resistance and fluoride release from glass ionomer covered with nanofilled self-adhesive coat: An in vitro study

Caspian journal of dental research, 2021
Introduction: The resin-modified glass ionomer (RMGI) materials are hybrid materials including conventional glass ionomer and small addition resin. They have the advantages of both, such as adhesion to tooth structure, esthetics and fluoride release. The
Zahra Lari, Fariba Ezoji, Hemmat Gholinia, Effat Khodadadi   +3 more
doaj