Synthesis and characterization of cellulose-functionalized 3,4-dihydroxyphenylalanine(dopamine)/silica-gold nanomaterials by sol-gel process.

Sivalingam Ramesh; Joo-Hyung Kim

doi:10.1117/12.979705

24 October 2012 Synthesis and characterization of cellulose-functionalized 3,4-dihydroxyphenylalanine(dopamine)/silica-gold nanomaterials by sol-gel process.

Sivalingam Ramesh, Joo-Hyung Kim

Author Affiliations +

Proceedings Volume 8548, Nanosystems in Engineering and Medicine; 85481D (2012) https://doi.org/10.1117/12.979705
Event: SPIE Nanosystems in Engineering + Medicine, 2012, Incheon, Korea, Republic of

Abstract

Cellulose-metal oxide nanomaterials were developed the technologies to manipulate self-assembly and multi-functionallity, of new technologies to the point where industry can produce advanced and cost-competitive cellulose and lignocellulose-based materials. The present investigation focused on cellulose–silica and cellulose functionalized 3,4-dihydroxy phenyl alanine(dopamine) silica/gold nanomaterials by in-situ sol-gel process. The tetraethoxysilane (TEOS) and gold precursors such as tetrachloroauricacid (HAuCl₄) and γ- aminopropyltriethoxysilane (γ-APTES) as coupling agent were used for sol-gel crosslinking process. The chemical and morphological properties of cellulose/silica and cellulose /silica-gold nanomaterials via covalent crosslinking hybrids were investigated with FTIR, XRD, SEM and TEM analysis. The results show that cellulose/silica and cellulose functionalized dopamine–silica/gold hybrids form new macromolecular structures in the size of 20 nm.

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Sivalingam Ramesh and Joo-Hyung Kim "Synthesis and characterization of cellulose-functionalized 3,4-dihydroxyphenylalanine(dopamine)/silica-gold nanomaterials by sol-gel process.", Proc. SPIE 8548, Nanosystems in Engineering and Medicine, 85481D (24 October 2012); https://doi.org/10.1117/12.979705

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