Results 21 to 30 of about 21,045 (246)

Pore Structures and Electric Double Layer Properties of Activated Carbon Derived from Demineralized Spent Coffee Grounds

open access: yesElectrochemistry, 2021
To improve the specific surface area (SSA) of steam activated carbon that has been prepared from spent coffee grounds (SCG), a demineralization of the SCG was conducted.
Keisuke KIKUCHI   +2 more
doaj   +1 more source

Demineralization of Enamel in Primary Second Molars Related to Properties of the Enamel

open access: yesThe Scientific World Journal, 2012
Enamel structure is of importance in demineralization. Differences in porosity in enamel effect the rate of demineralization, seen between permanent and deciduous teeth.
N. Sabel   +3 more
doaj   +1 more source

Preventive effects of Duraphat on enamel demineralization during orthodontic treatment

open access: yes口腔疾病防治, 2016
Objective To investigate effect of Duraphat on preventing enamel demineralization during orthodontic treatment.Methods 58 patients underwent fixed orthodontic treatment were included. Maxillary teeth were divided into 2 groups at central incisors.
LEI Jin, WANG Yi, ZHANG Han-fei
doaj   +1 more source

Effectiveness of Nanohydroxyapatite on Demineralization of Enamel and Cementum Surrounding Margin of Yttria-Stabilized Zirconia Polycrystalline Ceramic Restoration

open access: yesThe Scientific World Journal, 2021
Introduction. Prosthetic dentistry has shifted toward prevention of caries occurrence surrounding restorative margin through the anti-demineralization process.
Niwut Juntavee   +2 more
doaj   +1 more source

A study on enamel demineralization produced by citric acid

open access: yes口腔疾病防治, 2016
Objective To observe the effect of different etching time of citric acid on enamel blocks to acquire a reliable in vitro model for early enamel caries, and explore more effective experiment method for enamel demineralization.Methods Human premolars were ...
SHEN Xiao-qing
doaj   +1 more source

Biodegradable and Recyclable Luminescent Mixed‐Matrix‐Membranes, Hydrogels, and Cryogels based on Nanoscale Metal‐Organic Frameworks and Biopolymers

open access: yesAdvanced Functional Materials, EarlyView.
The study presents biodegradable and recyclable mixed‐matrix membranes (MMMs), hydrogels, and cryogels using luminescent nanoscale metal‐organic frameworks (nMOFs) and biopolymers. These bio‐nMOF‐MMMs combine europium‐based nMOFs as probes for the status of the materials with the biopolymers agar and gelatine and present alternatives to conventional ...
Moritz Maxeiner   +4 more
wiley   +1 more source

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

open access: yesAdvanced 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   +6 more
wiley   +1 more source

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

open access: yesAdvanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig   +11 more
wiley   +1 more source

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

open access: yesAdvanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra   +8 more
wiley   +1 more source

The demineralization of Sardinella gibbosa scales using hydrochloric acid and high-pressure carbon dioxide

open access: yesSqualen
This research aimed to investigate and compare the demineralization of goldstripe sardinella (GS; Sardinella gibbosa) scales, a major by-product in the canned fish industry prevalent in East Africa and Southeast Asia, particularly Thailand.
Faisa Saleah   +4 more
doaj   +1 more source

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