Table 1. Percentage of organic matter in silica nanoparticles layered with different number of quadruple layers containing chlorhexidine determined from TGA (n = 3 ± SD).

Nanoparticles	Organic content (%)
SiNH2	14.95 ± 1.00
QL1	20.18 ± 1.51
QL3	25.95 ± 0.36
QL5	33.08 ± 2.14
QL7	40.45 ± 1.45
QL10	49.59 ± 2.25