Hydroxyapatite: Synthesis, Properties and Applications by Valeri S. Gshalaev, Aleksandra C. Demirchan

By Valeri S. Gshalaev, Aleksandra C. Demirchan

Show description

Read or Download Hydroxyapatite: Synthesis, Properties and Applications PDF

Best mineralogy books

Antarctica: Contributions to Global Earth Sciences

Sixty articles prepared in 8 thematic sections consult with most up-to-date geological and geophysical result of Antarctic examine. The Precambrian of the East Antarctic safeguard and its geological historical past is taken into account in addition to sub-ice topography, geophysics and stratigraphy, sedimentology and geophysics of the encompassing Southern Ocean.

Introduction to Planetary Science: The Geological Perspective

This textbook is meant for use in a lecture direction for college kids majoring within the Earth Sciences. Planetary technological know-how offers a chance for those scholars to use a variety of material bearing on the Earth to the learn of alternative planets of the sun approach and their valuable satellites.

Minerals and Mineraloids in Marine Sediments: An Optical Identification Guide

Over 60% of the Earth's floor is roofed with deep marine sediments, in spite of the fact that, till the early Nineteen Eighties, no finished textual content books seemed to aid the speedy growth within the examine of those sediments. whereas the full box of marine geology has multiplied drastically and completely new disciplines, equivalent to paleoceanography, were built, there is still an absence of reference texts on learn concepts that investigators within the marine group can flip to.

Geostatistical and Geospatial Approaches for the Characterization of Natural Resources in the Environment: Challenges, Processes and Strategies

Those court cases of the IAMG 2014 convention in New Delhi discover the present state-of-the-art and tell readers in regards to the most recent geostatistical and space-based applied sciences for overview and administration within the contexts of common source exploration, environmental toxins, dangers and usual catastrophe examine.

Extra resources for Hydroxyapatite: Synthesis, Properties and Applications

Sample text

The influence of the reaction temperature on the crystal dimensions of precipitated CDHA: a – 25 ºC, b – 37 ºC, c – 55 ºC, d – 75 ºC. Most of these techniques produced rod-like crystals or whiskers, while plate-like shapes were obtained in just a few studies [335, 345, 347]. Other preparation methods of nanodimensional and/or nanocrystalline apatites of various states, shapes and sizes include sol-gel [30, 188, 231, 232, 270, 328, 360-376], coprecipitation [271, 333, 334, 377-380], mechanochemical approach [65, 250, 343, 348, 381387], mechanical alloying [388, 389], ball milling [348, 383, 390-392], radio frequency induction plasma [393, 394], vibro-milling of bones [395], flame spray pyrolysis [396], liquid-solid-solution synthesis [397], electro-crystallization [158, 398, 399], electrochemical deposition [400], microwave processing [32, 69, 288, 333, 334, 342, 356, 401-415], hydrolysis of other calcium orthophosphates [416-418], double step stirring [419], emulsionbased [310, 349, 420-433], steam-assistant [434], sonochemical [435] and solvothermal [436] syntheses.

A greater cell viability and proliferation of MSCs were measured for nano-sized HA, remarkably for 20 nm-sized particles. However, the opposite phenomenon occurred for bone tumour cells when nano-sized HA were co-cultured with cells. e. smaller particles possessed a greater ability to prevent cell proliferation. This suggests that nano-sized HA can exhibit favorable cell proliferation to optimize biological functionality, in which the particle dimensions are believed to play a key role. These in vitro findings are of a great significance for the understanding of cytophilicity and biological activity of nano-sized particles during biomineralization [507].

Thus, the degradability of βTCP bioceramics could be additionally regulated by the particle dimensions [173]. Nano-sized whiskers of several calcium orthophosphates (HA, β-TCP and biphasic calcium phosphate BCP (HA + β-TCP)) were produced by using a novel microwave-assisted “combustion synthesis (auto ignition)/molten salt synthesis” hybrid route. Aqueous solutions containing NaNO3, Ca(NO3)2 and KH2PO4 (with or without urea) were irradiated in a household microwave oven for 5 min at 600 watts of power.

Download PDF sample

Rated 4.52 of 5 – based on 38 votes