We have developed an innovative, rapid sol - gel method of
producing hydroxyapatite nanopowders that avoids the conventional lengthy ageing and drying processes (over a week), being 200 times quicker in comparison to conventional aqueous sol - gel preparation, and 50 times quicker than ethanol based sol - gel synthesis.
Holopainen developed the electrospinning apparatus for
producing hydroxyapatite fibers and a new kind of needleless twisted wire electrospinning setup, which is more productive than the generally known electrospinning method.