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Synthesis and antimicrobial activities of polymer/montmorillonite–chlorhexidine acetate nanocomposite films

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Abstract.
The PDMS/montmorillonite–chlorhexidine acetate (PDMS/OMMT) nanocomposite films were successfully
obtained by intercalation from solution. Organo-montmorillonite (OMMT) with antibacterial activity was
prepared from Na+-montmorillonite (Na+-MMT) and chlorhexidine acetate (CA) by ion exchange. The
microstructure of these nanocomposite films were characterized by TEM and XRD. The effect of OMMT on
mechanical properties and thermal stability of the nanocompositeswas investigated. When theOMMTcontent
was lower than 0.5 mass %, the nanocomposites showed excellent mechanical properties. The polymers were
tested for antimicrobial activity against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli). The PDMS/OMMT nanocomposite films strongly inhibited the growth of a wide variety of microorganisms,
including Gram-positive bacteria, Gram-negative bacteria.

Keywords: Chlorhexidine acetate, Antibacterial activity, Na+-montmorillonite, Nanocomposite films

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Informasi Detail

Judul Seri

Applied Clay Science

No. Panggil

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Penerbit

London : Elsevier B.V.., 2009

Deskripsi Fisik

Applied Clay Science 42 (2009) 667–670

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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