Fig. 7From: Silica/APTPOSS anchored on MnFe2O4 as an efficient nanomagnetic composite for the preparation of spiro-pyrano [2, 3-c] chromene derivativesThe FE-SEM images of (a) MnFe2O4 and (b) MnFe2O4@SiO2/APTPOSSBack to article page
