In this work, new phenol-based materials have been synthesized by the sol-gel method, in which different amounts of the phenolic antioxidant chlorogenic acid (CGA) (from 5 wt % to 20 wt %) were embedded in two different silica matrices: pure silica and silica-based hybrids materials, containing 50 wt % of polyethylene glycol (PEG). The incorporation of CGA in different sol-gel matrices might protect them from degradation, which could cause the loss of their properties. The two series of materials were chemically characterized by Fourier transform infrared (FTIR) spectroscopy. In addition, the thermal behavior of both series of materials containing CGA was studied by thermogravimetry under both air and inert N2flowing gas atmosphere. The bioactivity was evaluated by soaking the synthesized hybrids in a simulated body fluid, showing that the bioactivity of the silica matrix is not modified by the presence of PEG and CGA.

Sol-Gel synthesis, spectroscopic and thermal behavior study of SiO2/PEG composites containing different amount of chlorogenic acid / Catauro, Michelina; Tranquillo, Elisabetta; Risoluti, Roberta; VECCHIO CIPRIOTI, Stefano. - In: POLYMERS. - ISSN 2073-4360. - 10:6(2018), p. 682. [10.3390/polym10060682]

Sol-Gel synthesis, spectroscopic and thermal behavior study of SiO2/PEG composites containing different amount of chlorogenic acid

Roberta Risoluti;Stefano Vecchio Ciprioti
2018

Abstract

In this work, new phenol-based materials have been synthesized by the sol-gel method, in which different amounts of the phenolic antioxidant chlorogenic acid (CGA) (from 5 wt % to 20 wt %) were embedded in two different silica matrices: pure silica and silica-based hybrids materials, containing 50 wt % of polyethylene glycol (PEG). The incorporation of CGA in different sol-gel matrices might protect them from degradation, which could cause the loss of their properties. The two series of materials were chemically characterized by Fourier transform infrared (FTIR) spectroscopy. In addition, the thermal behavior of both series of materials containing CGA was studied by thermogravimetry under both air and inert N2flowing gas atmosphere. The bioactivity was evaluated by soaking the synthesized hybrids in a simulated body fluid, showing that the bioactivity of the silica matrix is not modified by the presence of PEG and CGA.
2018
Bioactivity; Chlorogenic acid; FTIR; Hybrids; Sol-gel; TG; Chemistry (all); Polymers and Plastics
01 Pubblicazione su rivista::01a Articolo in rivista
Sol-Gel synthesis, spectroscopic and thermal behavior study of SiO2/PEG composites containing different amount of chlorogenic acid / Catauro, Michelina; Tranquillo, Elisabetta; Risoluti, Roberta; VECCHIO CIPRIOTI, Stefano. - In: POLYMERS. - ISSN 2073-4360. - 10:6(2018), p. 682. [10.3390/polym10060682]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1169454
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