Results 81 to 90 of about 2,304,365 (234)

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

Advanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem, Zhiyuan Li, Minsu Heo, Fangyi Hu, Tian Lan, Youngdeog Koh, Ruiwen Xie, Chuanmu Tian, Marc Widenmeyer, Hyun‐Sik Kim, Jan P. Hofmann, Yuan Yu, Hongbin Zhang, Anke Weidenkaff, G. Jeffrey Snyder, Wenjie Xie   +15 more
wiley   +1 more source

Fracture Resistance of Endodontically Treated Teeth Filled with Bioceramic-Based Root Canal Sealers Following Chelation with EDTA or Citric Acid [PDF]

Journal of Endodontics and Restorative Dentistry
Objective: The aim of this in vitro study was to evaluate the fracture resistance of teeth filled with bioceramic-based root canal sealers (BioRoot Flow and TotalFill BC Sealer) following chelation with EDTA or citric acid, and to assess the influence of
Emine Şimşek, Sude Gül Özdemir, Selimcan Satar, Fatma Selenay Uçaş Yıldız, Özge Kurt, Makbule Bilge Akbulut   +5 more
doaj   +1 more source

Bioinspired Hydrogels with Broadly Programmable Mechanics for Soft‐Tissue Interfaces

Advanced Functional Materials, EarlyView.
Sea cucumber‐inspired gelatin hydrogels are formed by directional freezing and mechanically programmed through subsequent ionic treatment. Multiscale characterization and modeling link ion‐regulated chain interactions to directional load transfer within the aligned hierarchical architecture.
Youchao Teng, TzuChun Chung, Katpady Akhil Tantry, Siyu Wu, Jing Tian, Yunqi Cui, Lanyu Li, Yongzan Zhou, Zhilei Zhang, Zhe Su, Gaili Cao, Kun‐Wei Yeh, Ruipeng Li, Xianghui Xiao, Adam F. G. Leontowich, Yuan‐Yu Hsueh, Zhao Pan, Kam C. Tam, Badri Narayanan, Song Li, Yimin. A. Wu   +20 more
wiley   +1 more source

Evaluation of the reinforcement effect on teeth with different apical foramen diameters of retrograde or orthograde MTA application with internal matrix

Acta Odontologica Turcica, 2016
OBJECTIVE: The aim of this study was to determine the effect of the apical foramen diameter and different application methods of Mineral Trioxide Aggregate (MTA) on the fracture resistance of simulated immature teeth using a Universal Testing Machine.
Emre Bayram, Hüda Melike Bayram, Hakan Eren   +2 more
doaj   +1 more source

Biodegradable 3D‐Printable and Coatable Antifouling Composites for Marine Applications

Advanced Functional Materials, EarlyView.
Marine biofouling damages submerged surfaces and raises greenhouse gas emissions. Biodegradable antifouling biocomposites were developed by hot‐mixing beeswax, Tween 80, and calcium stearate or stearic acid. Adjusting the component ratio enables processing via hot‐pressing, 3D‐printing, or dip‐coating.
Gabriele Corigliano, Lorenzo Ravelli, Martina Nardi, Ruowen Tu, Elena Bellini, Valerio Isa, Carlo Filippeschi, Roberta Finazzi, Luca Ceseracciu, Niloofar Paknezhad, Vincenzo Scribano, Paolo Galli, Silvia Lavorano, Simone Montano, Barbara Mazzolai, Marco Contardi, Pietro Cataldi, Athanassia Athanassiou   +17 more
wiley   +1 more source

Diagnosis of alveolar and root fractures: an in vitro study comparing CBCT imaging with periapical radiographs

Journal of Applied Oral Science
Objective To compare periapical radiograph (PR) and cone-beam computed tomography (CBCT) in the diagnosis of alveolar and root fractures. Material and Methods Sixty incisor teeth (20 higid and 40 with root fracture) from dogs were inserted in 60 ...
Solange KOBAYASHI-VELASCO, Fernanda Cristina Sales SALINEIRO, Ivan Onone GIALAIN, Marcelo Gusmão Paraiso CAVALCANTI   +3 more
doaj   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

Advanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman, Syed Hussain Wajahat, Saad Al‐Saadi, Robin E. Schäublin, Peng Zeng, Solomon Ansah, Jixing Lin, Xian Tong, Cuie Wen, Jörg F. Löffler   +9 more
wiley   +1 more source

Comparing the Diagnostic Accuracy of PSP Digital Intraoral Receptor Software Options in Assessment of Vertical Fractures of Mandibular Posterior Teeth

Journal of Dental School, 2023
Objectives Root fracture detection may be a challenging process due to difficulties in clinical and radiographic assessments. This study compared the diagnostic efficacy of Photostimulable Phosphor (PSP) intraoral digital receptor software alternatives ...
Paniz Ranji, Ladan Hafezi, Fatemeh Lotfi
doaj  

XTRUDE: A Process‐Informed Framework for High‐Fidelity Analysis of Hydrogel Extrusion

Advanced Functional Materials, EarlyView.
Extrusion performance emerges from the interplay between material properties and processing conditions. XTRUDE (eXTrusion Rheology for Understanding and Defining Extrudability) recreates the extrusion environment with in situ pressure and temperature sensing, enabling characteristic pressure signatures to quantify extrusion‐specific phenomena and ...
Farhad Sanaei, Pascal Bertsch, Juliette Lafosse, Sander C. G. Leeuwenburgh, Mani Diba   +4 more
wiley   +1 more source

An in vitro evaluation of dentinal microcrack formation during root canal preparations by three different nickel–titanium systems: ProTaper Gold, HyFlex CM, and Silk

Endodontology
Aim: This study aimed to compare the frequency of dentinal microcracks after root canal shaping with three different nickel–titanium (NiTi) systems, namely, ProTaper Gold (PG), HyFlex CM (HCM), and Silk.
L Krishna Prasada, K Suhas, U Akshay Kumar Pai   +2 more
doaj   +1 more source