Results 51 to 60 of about 1,378,977 (352)

Periodic Mesoporous Silica Gels [PDF]

MRS Proceedings, 1996
AbstractWe have synthesized monolithic particulate gels of periodic mesoporous silica by adding tetramethoxysilane to a homogeneous alkaline micellar precursor solution. The gels exhibit 5 characteristic length scales over 4 orders of magnitude: fractal domains larger than the particle size (>500 nm), particles that are ˜150 to 500 nm in diameter ...
M. T. Anderson, J. E. Martin, J. G. Odinek, P. Newcomer, J. P. Wilcoxon   +4 more
openaire   +1 more source

Silica/quercetin sol–gel hybrids as antioxidant dental implant materials

Science and Technology of Advanced Materials, 2015
The development of biomaterials with intrinsic antioxidant properties could represent a valuable strategy for preventing the onset of peri-implant diseases.
M. Catauro, F. Papale, F. Bollino, Simona Piccolella, S. Marciano, P. Nocera, S. Pacifico   +6 more
semanticscholar   +1 more source

Tuning the Dielectric Properties of Individual Clay Nanosheets by Interlayer Composition: Toward Nano‐Electret Materials

Advanced Functional Materials, EarlyView.
The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich, Paul Markus, Matthias Stöter, Bernhard Biersack, Rainer Schobert, Josef Breu, Georg Papastavrou   +6 more
wiley   +1 more source

Investigation of Hybrid Films Based on Fluorinated Silica Materials Prepared by Sol–Gel Processing [PDF]

, 2022
Violeta Purcar, Valentin Rădițoiu, Florentina Monica Raduly, Alina Rădițoiu, Simona Căprărescu, Adriana Nicoleta Frone, Cristian Andi Nicolae, Mihai Anastasescu   +7 more
openalex   +1 more source

Scale-Dependent ASR Expansion of Concrete and Its Prediction coupled with Silica Gel Generation and Migration

, 2016
This study set out to investigate the effect of gel migration through micro-pores and cracks on concrete expansion caused by alkali–silica reaction (ASR).
Yuya Takahashi, S. Ogawa, Yasushi Tanaka, K. Maekawa   +3 more
semanticscholar   +1 more source

Synthesis and adsorption properties of chitosan-silica nanocomposite prepared by sol-gel method

Nanoscale Research Letters, 2015
A hybrid nanocomposite material has been obtained by in situ formation of an inorganic network in the presence of a preformed organic polymer. Chitosan biopolymer and tetraethoxysilane (TEOS), which is the most common silica precursor, were used for the ...
T. M. Budnyak, Ievgen V. Pylypchuk, V. Tertykh, E. Yanovska, D. Kołodyńska   +4 more
semanticscholar   +1 more source

Next‐Generation Bio‐Reducible Lipids Enable Enhanced Vaccine Efficacy in Malaria and Primate Models

Advanced Functional Materials, EarlyView.
Structure–activity relationship (SAR) optimization of bio‐reducible ionizable lipids enables the development of highly effective lipid nanoparticle (LNP) mRNA vaccines. Lead LNPs show superior tolerability and antibody responses in rodents and primates, outperforming approved COVID‐19 vaccine lipids.
Ruben De Coen, Sabah Kasmi, Shrinivas Dumbre, Lies Baekens, Elise Seynaeve, Louise Van den Hauwe, Niccolò Cantini, Aello Garantoudi, Filipe Branco Madeira, Alain Marrot, Emma Tuypens, Sofie Seghers, Anna Kuchmiy, Elisabeth Brabants, Bart Vanderborght, Ine Maes, Sarah Vandenberghe, Jessica Filtjens, Alícia Gordún Peiró, Daliya Kancheva, Ayla Debraekeleer, Florence Lambolez, Emily De Lombaerde, Yong Chen, Rafael Miyazawa Martins, Pauline Formaglio, Damya Laoui, Sofie Deschoemaeker, Bruno G. De Geest, Rogerio Amino, Stefaan De Koker   +30 more
wiley   +1 more source

DENTA: A Dual Enzymatic Nanoagent for Self‐Activating Tooth Whitening and Biofilm Disruption

Advanced Functional Materials, EarlyView.
The nanoapatite with dual enzymes (DENTA) accumulates in dentinal tubules, reducing hypersensitivity caused by dental nerve exposure and facilitating continuous ROS generation through salivary glucose for effective, long‐term whitening. The dentin structures remain non‐destructive due to the low concentration of ROS, demonstrating excellent cell ...
Junseok Kim, Dai‐Hwan Kim, Priyannth R. Sundharbaabu, Chae Yeon Lee, Jina Bae, Jiyu Hyun, Young‐Ju Jang, Haeni Kim, Min‐Ho Hong, Juewen Liu, Tobias Fey, Suk Ho Bhang, Jun Hyuk Heo, Jung Heon Lee   +13 more
wiley   +1 more source

Application of a New Silica Gel Ionization Intensifier on Nanogram Lead Isotope Analysis

Yankuang ceshi, 2014
In nuclear forensics the amount of Pb to be analyzed is usually in the order of several nanograms; that is >10-3 of ionization efficiency is required for mass spectrometry measurements.
LIU Xue-mei, TANG Lei, FU Zhong-hua, LONG Kai-ming   +3 more
doaj   +2 more sources

Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels

Advanced Functional Materials, EarlyView.
Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula, Rosa M. Espinosa‐Marzal   +1 more
wiley   +1 more source