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Nano-layered inorganic-organic hybrid materials for the controlled delivery of antimicrobials

Kinninmonth, M and Liauw, CM and Verran, J and Taylor, RL and Edwards-Jones, V and Shaw, D (2014) Nano-layered inorganic-organic hybrid materials for the controlled delivery of antimicrobials. Macromolecular Symposia, 338 (1). pp. 36-44. ISSN 1022-1360

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Abstract

An essential oil (EO) blend has been identified that provides a broad spectrum potent antimicrobial effect. Adsorption of the EO onto porous silicate materials (Rockwood Additives: Laponite® B, Laponite® RD and Fulcat® 800) and has been analysed and it was found that Laponite® RD organically modified with dihydrogenated tallow dimethyl ammonium chloride (2HT2M) at 50% cation exchange capacity gave the highest levels of adsorption. The Laponite® RD 2HT2M with EO blend adsorbed has been added to polymer materials to produce an antimicrobial polymer. The adsorption of the EO onto the Laponite® RD was done to achieve controlled release of the EO to prolong the antimicrobial effect within the polymer. Addition of the EO loaded substrates into silicone elastomer has resulted in successfully conferring a high level of antimicrobial activity to the polymer. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

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