Spectroscopic and Morphological Investigation of an Optical pH Meter Based on a Porphyrin Monolayer Covalently Assembled on a Engineered Silica Surface
The Journal of Physical Chemistry C2006Vol. 111(3), pp. 1373–1377
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Abstract
A covalently assembled monolayer of 5,10,15-{p-[9-methoxy-three(oxyethylene)]phenyl}-20-(p-hydroxyphenyl) porphyrin molecules was fabricated on silica substrates already functionalized with a covalent 4-ClCH2C6H4SiCl3 monolayer. The surface chemical characterization was carried out by angle resolved X-ray photoelectron measurements. Moreover, surface morphological characterizations were performed by atomic force microscopy measurements. Present results provide information on the grafting of porphyrin molecules.
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