Results 61 to 70 of about 38,961 (266)

Self-etching ceramic primer versus hydrofluoric acid etching: Etching efficacy and bonding performance

Journal of Prosthodontic Research, 2018
This study assessed the effect of pretreatment of hybrid and glass ceramics using a self-etching primer on the shear bond strength (SBS) and surface topography, in comparison to pretreatment with hydrofluoric acid and silane.40 rectangular discs from each ceramic material (IPS e.max CAD;EM, Vita Mark II;VM, Vita Enamic;VE), were equally divided (n=10 ...
Hatem M. El-Damanhoury, Maria D. Gaintantzopoulou   +1 more
openaire   +3 more sources

3D‐Printable, Biodegradable, and Conductive/Piezoionic Hydrogel ‘E‐Skin’ With Robust Antibacterial Properties for Wound Healing and Wireless Human‐Machine Interface Sensing

Advanced Functional Materials, EarlyView.
A multifunctional MXene‐integrated GelMA/alginate hydrogel reinforced with TEMPO‐modified nanocellulose is engineered via dynamic covalent, ionic, and hydrogen bonding. The resulting piezoelectric, adhesive, antimicrobial, and 3D‐printable patch enables motion sensing and accelerates wound healing by promoting keratinocyte migration and collagen ...
Myoungjoon Jeon, Sayan Deb Dutta, Md. Moniruzzaman, Jeong Man An, Youjin Seol, Gyuhan Son, Sung Ha Jo, Hyun Chang Jung, Beom‐Soo Shin, Jongsung Kim, Yong‐kyu Lee, Ki‐Taek Lim   +11 more
wiley   +1 more source

Crystal growth vs. conventional acid etching: A comparative evaluation of etch patterns, penetration depths, and bond strengths

Indian Journal of Dental Research, 2008
The present study was undertaken to investigate the effect on enamel surface, penetration depth, and bond strength produced by 37% phosphoric acid and 20% sulfated polyacrylic acid as etching agents for direct bonding.
Devanna Raghu, Keluskar K
doaj  

Influence of Different Enamel Pretreatment on Bond Strength of Fissure Sealant

Acta Stomatologica Croatica
Objective: The aim of this in vitro study was to evaluate the bond strength of a resin composite fissure sealant to enamel which was pre-treated with different laser pulse modes and additional acid etching. Materials and Methods: Forty-two healthy molars
Dafina Doberdoli, Hrvoje Jurić
doaj   +1 more source

Shear bond strength of ceramic and metallic orthodontic brackets bonded with self-etching primer and conventional bonding adhesives

Electronic Physician, 2017
Introduction: Adult patients typically require high-quality orthodontic treatment for ceramic brackets, but some clinicians remain concerned about the bond strength of these brackets.
Valiollah Arash, Fatemeh Naghipour, Mehdi Ravadgar, Ahmad Karkhah, Mohammad Saleh Barati   +4 more
doaj   +1 more source

Graphene Quantum Dot‐Induced Microstrain for Framework Stabilization of High‐Entropy Prussian Blue Analog in High‐Current Alkaline Hydrogen Evolution Reaction

Advanced Functional Materials, EarlyView.
The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati, Yu‐Ru Liu, Wei‐Hsiang Huang, Kuan‐Yu Lin, Ching‐Ju Ho, Ling‐Yu Chang, Karel Roubik, Ni Luh Wulan Septiani, Ahmad Nuruddin, Wei‐Nien Su, Min‐Hsin Yeh   +10 more
wiley   +1 more source

Physical Model Test on Conductivity of Acid-etched Fracture of Large-scale Rock Sample and Laser Scanning

Shiyou jixie, 2017
At present, the core size for the experimental study on the conductivity of acid-etched fracture is too small, which results in limited etching distance.
Liu Yang, Yuan Xuefang, Wang Jingbo, Liu Ju, Xiong Yongfu, Wang Rong   +5 more
doaj  

Acid-etching fracturing law of multi-stage alternating injection in limestone reservoirs

Youqi dizhi yu caishoulu
The majority of limestone reservoirs in China are characterized by deep burial， low porosity， and low permeability and are influenced by factors such as elevated temperatures， high closure pressures， and strong heterogeneity.
LU Yixin, QI Ning, ZHOU Shunming, WANG Zhuanzhuan, LI Xuesong, SU Xuhang, WANG Liangliang   +6 more
doaj   +1 more source

Enhanced Tantalum Superconducting Resonator Performance via All‐Surface Organic Monolayer Passivation

Advanced Functional Materials, EarlyView.
The internal quality factor of tantalum superconducting resonators is significantly increased by ∼140% in the low photon regime by passivating their surfaces with a high‐quality alkene self‐assembled monolayer. Our methodology promises to enhance the performance of superconducting quantum circuits.
Harsh Gupta, Moritz Singer, Benedikt Schoof, Anna Cattani‐Scholz, Shreya Sharma, Luca Rommeis, Marc Tornow   +6 more
wiley   +1 more source

Influence of the C4H6O6 Concentration in the (NH4)2Cr2O7-HBr-C4H6O6 Composition on the Chemical-Dynamic Polishing of the III-V Semiconductors

Фізика і хімія твердого тіла, 2017
The paper presents the results of experimental determination of the influence of the initial concentration of tartaric acid on the features of the chemical interaction of InAs, InSb, GaAs and GaSb with (NH4)2Cr2O7-HBr-C4H6O6 etching solutions.
I. V. Levchenko, I. B. Stratiychuk, V. M. Tomashyk, G. P. Malanych   +3 more
doaj   +1 more source