"Sol-gel matrix modified microstructured optical fibre towards a fluoride sensitive optical probe" Optics Communications, 2009, 282: 2502-2505
(MPOFs) which is modified with morin-Al complex doped silica gel film.
This probe is fabricated by sol–gel fluxion coating process. Sol solution
doped with morin-Al is directly inhaled into array holes of MPOF and
then forms morin-Al-gel matrix film in them. The sensing probe
shows different fluorescence intensity to different fluoride ion
concentrations in the aqueous solution. The range of response is
5–50 mmol/L, under the condition of pH 4.6.