Nanodimensional and Nanocrystalline Calcium Orthophosphates - Calcium Orthophosphates: Applications in Nature, Biology and Medicine - page 242

Table 3.1 Synthesis of nanodimensional apatites: a chronological

development [122].

Year Process Reference

1995 Synthesis of nanocrystalline HA (particle size
~20 nm) for the first time using calcium nitrate
and

[400]

diammonium hydrogen orthophosphate as

precursors by solution spray dry method.

2000 Synthesis of biomimetic nanosized CDHA powders
(~50 nm) at 37°C and pH of 7.4 from calcium
nitrate tetrahydrate and diammonium hydrogen
orthophosphate salts in synthetic body fluid using a
novel chemical precipitation technique.

[328]

2002 Preparation of nanosized HA particles and HA/

chitosan nanocomposite.

[401]

2002 Direct precipitation from dilute calcium chloride and

sodium orthophosphate solutions.

[402]

2003 Radio frequency plasma spray process employing

fine spray dried HA powders (average size ~15 μm)
as a feedstock.

[340]

2003 Sol-gel process using equimolar solutions of calcium
nitrate and diammonium hydrogen orthophosphate
dissolved in ethanol.

[323]

2003 Chemical precipitation through aqueous solutions

of

[268]

calcium chloride and ammonium hydrogen

orthophosphate.

2003 Mechanochemical synthesis of nanosized HA and

β-TCP powders using DCPD and CaO as starting
materials.

[333]

2003 Synthesis of nano-powders via sucrose-templated sol-
gel method using calcium nitrate and diammonium
hydrogen orthophosphate as precursor chemicals.

[403]

2004 Hydrolysis method of DCPD and CaCO by 2.5 M [356] 3

NaOH (aq).

2004 Citric acid sol-gel combustion process using calcium

nitrate

[404]

tetrahydrate, diammonium hydrogen

orthophosphate and citric acid.