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

Sivalingam Ramesh, Joo Hyung Kim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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 (HAuCl 4) 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.

Original languageEnglish
Title of host publicationNanosystems in Engineering and Medicine
DOIs
StatePublished - 2012
EventNanosystems in Engineering and Medicine - Incheon, Korea, Republic of
Duration: 10 Sep 201212 Sep 2012

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8548
ISSN (Print)1605-7422

Conference

ConferenceNanosystems in Engineering and Medicine
Country/TerritoryKorea, Republic of
CityIncheon
Period10/09/1212/09/12

Keywords

  • Cellulose
  • dopamine
  • optical transparency
  • opto-electronic applications
  • silica/gold nanomaterials

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