Results 11 to 20 of about 338 (127)

Muon spin relaxation study of phosphosilicate gels

Solid State Ionics, 2020
Abstract Muon dynamics in phosphosilicate proton conductors P2O5-SiO2 with a composition 30 mol% phosphorus oxide (30P) have been studied as a function of temperature using muon spin relaxation. For materials heat treated at 300 °C the muons implant at sites close to P-OH groups associated with water molecules.
Esposito S., Clayden N. J., Cottrell S. P.   +2 more
openaire   +1 more source

Effect of Temperature of 1.23% Acidulated Phosphate Fluoride Gel on Enamel Microhardness of Permanent Teeth. [PDF]

Int J Dent
Objectives: This study aimed to assess the effect of temperature of 1.23% acidulated phosphate fluoride (APF) gel on enamel microhardness of permanent teeth. Materials and Methods: This in vitro experimental study was conducted on 36 surgically extracted impacted human third molars.
Milani S, Shahrabi M, M-Abdi N.
europepmc   +2 more sources

Electrochemical Ionic Synapses: Progress and Perspectives

Advanced Materials, Volume 35, Issue 37, September 14, 2023., 2023
Electrochemical ionic synapses (EISs) are programmable resistors whose conductivity is controlled deterministically by electrochemical charge insertion. Their repeatable conductance modulation and low energy consumption render them promising for enabling analog deep learning architectures with uncompromised accuracy and superior energy efficiency. Here,
Mantao Huang, Miranda Schwacke, Murat Onen, Jesús del Alamo, Ju Li, Bilge Yildiz   +5 more
wiley   +1 more source

3D bioprinting microgels to construct implantable vascular tissue

Cell Proliferation, Volume 56, Issue 5, May 2023., 2023
The synergy of strength and biocompatibility in one matrix is essential to meet angiogenic HUVEC‐based sprouting and bear shear stress for implanting tissue engineering for clinical applications at a large scale. Here, the authors demonstrate a design strategy of microgel reinforced cell‐laden matrix with heterogeneous stiffness for constructing ...
Xinhuan Wang, Xin Liu, Wenli Liu, Yanyan Liu, Ailing Li, Dong Qiu, Xiongfei Zheng, Qi Gu   +7 more
wiley   +1 more source

Structure and properties of cerium phosphate and silicophosphate glasses

Journal of the American Ceramic Society, Volume 106, Issue 5, Page 2808-2819, May 2023., 2023
Abstract We report on the fabrication, properties, and structure of cerium pyrophosphate glasses and partially substituted cerium silicophosphates. In those glasses, cerium occurs predominantly as Ce(III). A combination of dynamic nuclear magnetic resonance and electrical impedance spectroscopy is used to overcome the problem of assessing cerium ...
Yang Xia, Courtney Calahoo, Bruno Poletto Rodrigues, Kristin Griebenow, Lennart Graewe, Lothar Wondraczek   +5 more
wiley   +1 more source

The Effect of Formulated Dentin Remineralizing Gel Containing Hydroxyapatite, Fluoride, and Bioactive Glass on Dentin Microhardness: An In Vitro Study. [PDF]

Int J Dent
Objectives. This study aimed to develop a gel with dentin‐remineralizing properties, integrating nano‐hydroxyapatite (nHA), sodium fluoride (NaF), and bioactive glass (BG). Materials and Methods. The enamel layer of 40 bovine incisors was removed. The samples were allocated into four groups of 10 each, based on varying concentrations of nHA, BG, and ...
Asadi M, Majidinia S, Bagheri H, Hoseinzadeh M.   +3 more
europepmc   +2 more sources

Thermal stability of porous sol-gel phosphosilicates and their surface area stabilisation by lanthanum addition [PDF]

Materials Letters, 2016
The thermal stability of porous sol-gel phosphosilicates was studied by comparing the textural features upon calcination between 400 and 550 °C. A significant loss of surface area and pore volume were observed; the first is due to thermal coarsening of the nanoparticles, and the pore volume reduction was ascribed to sintering of the most external ...
Falco, Lorena, De Mendonca, Mariana Van Den Tempel, Mercadal, Juan J., Zarubina, Valeriya, Melián-Cabrera, Ignacio   +4 more
openaire   +2 more sources

The Complex World of Toothpaste Diversity, Meeting Patient Clinical Needs. An Umbrella Review

International Journal of Dental Hygiene, EarlyView.
ABSTRACT Background Amidst numerous recent advancements in toothpaste formulations and active ingredients, some clinicians may believe all toothpastes are similar despite differences in their active ingredients and corresponding clinical application.
Jeanie Suvan, Crystal Marruganti
wiley   +1 more source

Chemical agents to control biofilm formation in step 1 of care—Toothpastes and mouthwashes/concepts and challenges

Periodontology 2000, EarlyView.
Abstract Maintaining optimal oral hygiene is important for overall oral care, ensuring the well‐being of teeth and their surrounding tissues. In addition, it promotes fresh breath and a pleasing smile. A key element of oral self‐care is the daily use of toothpaste during regular brushing.
Maud Joosstens, Cees Valkenburg, Fridus Van der Weijden   +2 more
wiley   +1 more source

Phosphosilicate Gels as a Solid State Proton Conductor at Medium Temperature and Low Humidity.

Journal of the Ceramic Society of Japan, 2002
Phosphosilicate (P2O5-SiO2) gels with a P/Si molar ratio of 1.0 heat-treated at 150°C were found to retain a high conductivity of 1.5×10-2S·cm-1 even after holding at a temperature of 130°C at a relative humidity of 0.7% for about 400 min. On the other hand, the conductivity of the porous silica gels impregnated with 5M H3PO4 largely decreased from 1 ...
MATSUDA, Atsunori, KANZAKI, Takao, TADANAGA, Kiyoharu, TATSUMISAGO, Masahiro, MINAMI, Tsutomu   +4 more
openaire   +2 more sources