Sol-Gel Produced Sio2 - Films for Observation of Red Blood Cells
Maria Milanova · Biomedical Journal of Scientific & Technical Research · 2018
Preparation of The FilmsMaterials: Tetraethoxysilane, TEOS, >98 %, produced by Merck, and ethanol (p.a., 96 %) were used as initial materials.Glass microscope slides, cleaned sequentially using deionized water, methanol and acetone followed by a final deionized water rinse were used as substrates. Starting Sol Production:Water-ethanol solution of the precursor (mole ratio ethanol: water: precursor = 4:1:0.25;pH = 1, adjusted by HCl) was prepared.The sol was stirred magnetically for 1 h and aged at 70 oC for 18 h to promote the hydrolysis and condensation prior to coating.Some of the sols were sonicated for 45 min after magnetic stirring by an ultrasound generator Sol-Gel Produced Sio