Synthesis of hybrid cellulose nanocomposite bonded with dopamine-SiO2/TiO2 and its antimicrobial activity

Sivalingam Ramesh; Gwang-Hoon Kim; Jaehwan Kim; Joo-Hyung Kim

doi:10.1117/12.2084511

3 April 2015 Synthesis of hybrid cellulose nanocomposite bonded with dopamine SiO₂/TiO₂ and its antimicrobial activity

Sivalingam Ramesh, Gwang-Hoon Kim, Jaehwan Kim, Joo-Hyung Kim

Proceedings Volume 9434, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015; 943410 (2015) https://doi.org/10.1117/12.2084511
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2015, San Diego, California, United States

Abstract

Organic-inorganic hybrid material based cellulose was synthesized by the sol-gel approach. The explosion of activity in this area in the past decade has made tremendous progress in industry or academic both fundamental understanding of sol-gel process and applications of new functionalized hybrid materials. In this present research work, we focused on cellulose–dopamine functionalized SiO₂/TiO₂ hybrid nanocomposite by sol-gel process. The cellulose-dopamine hybrid nanocomposite was synthesized via γ-aminopropyltriethoxysilane (γ-APTES) coupling agent by in-situ sol-gel process. The chemical structure of cellulose–amine functionalized dopamine bonding to cellulose structure with covalent cross linking hybrids was confirmed by FTIR spectral analysis. The morphological analysis of cellulose-dopamine nanoSiO₂/TiO₂ hybrid nanocomposite materials was characterized by XRD, SEM and TEM. From this different analysis results indicate that the optical transparency, thermal stability, control morphology of cellulose-dopamine-SiO₂/TiO₂ hybrid nanocomposite. Furthermore cellulose–dopamine-SiO₂/TiO₂ hybrid nanocomposite was tested against pathogenic bacteria for antimicrobial activity.

Citation Download Citation

Sivalingam Ramesh, Gwang-Hoon Kim, Jaehwan Kim, and Joo-Hyung Kim "Synthesis of hybrid cellulose nanocomposite bonded with dopamine SiO₂/TiO₂ and its antimicrobial activity", Proc. SPIE 9434, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2015, 943410 (3 April 2015); https://doi.org/10.1117/12.2084511

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