Results 71 to 80 of about 1,843 (253)

Non‐Equilibrium Synthesis of Whitlockite Assisted by Localized H2O Vapor Pressure

open access: yesAdvanced Science, EarlyView.
A carbon substrate acts as a microheater during intense pulsed light irradiation, enabling rapid heating and cooling for whitlockite formation. In contrast to conventional white ceramic synthesis with weak photothermal response, this platform concentrates thermal energy locally and promotes phase‐selective crystallization under ultrafast ...
Min‐Jung Kim   +5 more
wiley   +1 more source

Hydroxyapatite coating of prostheses [PDF]

open access: yesThe Journal of Bone and Joint Surgery. British volume, 1991
The basic problem with the fixation of a prosthesis, cemented or cementless, is biomechanical. The forces transmitted between it and bone will depend on the design and the surface geometry of the implant, the mechanical properties of its surface, and the operative technique.
openaire   +2 more sources

Deep Learning Network‐Tailored Microenvironment Matching of 4D Bioprinting Bioactive Scaffolds for Bone Regeneration

open access: yesAdvanced Science, EarlyView.
A DLN dataset was built to analyze MABS composition versus in vitro/in vivo osteogenesis and angiogenesis. An MLP neural network, taking BG morphological parameters as input, extracts bioactive features from these datasets. A rabbit tibial defect model then validates 4D‐printed MABS for adaptability and bone regeneration in critical defects.
Xiongjie Liang   +12 more
wiley   +1 more source

Hydroxyapatites and nano-hydroxyapatites as scaffolds in drug delivery towards efficient bone regeneration: A review

open access: yesCarbohydrate Polymer Technologies and Applications
Bone regeneration is a complex process that requires materials capable of supporting structural integrity, promoting cell proliferation, and enabling effective drug delivery.
Amir Hatami kaleshtari   +6 more
doaj   +1 more source

Cytotoxicity of stoichiometric hydroxyapatites with different crystallite sizes

open access: yesJournal of Asian Ceramic Societies, 2014
Hydroxyapatite (HAp) samples were synthesized by a solution reaction method followed by heat-treatments at three different temperatures. Special attention was given to optimizing the processing parameters to obtain the chemical composition near to the ...
Kazuki Shitara   +8 more
doaj   +1 more source

Nanowires Reinforce Oriented Macroporous Aerogels for Rapid Uranium Removal from Acidic Radioactive Wastewater

open access: yesAdvanced Science, EarlyView.
A “reinforced concrete” structural aerogel with directional microchannels is engineered for rapid uranium capture. The interconnected architecture enables ultrafast water permeation, and the nanowire reinforcement yields a 70‐fold increase in mechanical strength.
Ze Liu   +8 more
wiley   +1 more source

Osteogenic Potential of a Three‐Phase Strontium‐ and Silicon‐Doped Tricalcium Silicate Cement on Dental Pulp Stem Cells: An In Vitro Study

open access: yesClinical and Experimental Dental Research
Objective This study aimed to evaluate the osteogenic potential of a novel three‐phase cement composed of strontium‐doped hydroxyapatite (Sr‐HA), silicon‐doped hydroxyapatite (Si‐HA), and tricalcium silicate (C3S) on dental pulp stem cells (DPSCs) in ...
Nahid Nasrabadi   +5 more
doaj   +1 more source

Ubiquitination of ACSL4 by Parkin Suppresses Ferroptosis and Rescues Glucocorticoid‐Induced Bone Loss

open access: yesAdvanced Science, EarlyView.
GCs reduce Parkin, leading to ACSL4 accumulation and PUFA‐phospholipid‐driven ferroptosis in BMSCs, which impairs osteogenesis and promotes adipogenesis, causing GIOP. Parkin restoration (via OE‐Parkin or Parkin‐LNP@DSS6) ubiquitinates and degrades ACSL4, inhibiting ferroptosis, rescuing bone formation, and rescues GIOP bone loss.
Li‐jiang Han   +16 more
wiley   +1 more source

SILICON RELEASE FROM HYDROXYAPATITES IN WATER AND SIMULATED BODY FLUID

open access: yesStudia Universitatis Babes-Bolyai Chemia, 2017
Nanostructured hydroxyapatite (HAP) and silicon substituted hydroxyapatites (HAP-Si), with 0.47 and 2.34 wt% Si, were prepared by wet precipitation method.
Oana CADAR   +7 more
doaj   +1 more source

A Programmable Calcification Nanoplatform for Loco‐Regional Calcification‐Immune Hepatocellular Carcinoma Therapy

open access: yesAdvanced Science, EarlyView.
An in situ‐grown BP‐CaO2 nanoplatform supplies coordinated Ca2+, endogenous phosphate, and oxidative stress to convert tumor calcification from a passive endpoint into an active immune‐remodeling process. Widespread hydroxyapatite deposition is visualized by CT, while multi‐omics reveals MCOLN2 as a calcium‐responsive mediator linking biomineralization
Long Liu   +11 more
wiley   +1 more source

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