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New 3-Hydroxybutyric Acid Findings from A.M. Diez-Pascual and Co-Researchers Described [Poly(3-hydroxybutyrate)/ZnO Bionanocomposites with Improved...

August 15, 2014



New 3-Hydroxybutyric Acid Findings from A.M. Diez-Pascual and Co-Researchers Described [Poly(3-hydroxybutyrate)/ZnO Bionanocomposites with Improved Mechanical, Barrier and Antibacterial Properties]

By a News Reporter-Staff News Editor at Science Letter -- Current study results on 3-Hydroxybutyric Acid have been published. According to news reporting out of Madrid, Spain, by NewsRx editors, research stated, "Poly(3-hydroxybutyrate) (PHB)-based bionanocomposites incorporating different contents of ZnO nanoparticles were prepared via solution casting technique. The nanoparticles were dispersed within the biopolymer without the need for surfactants or coupling agents."

Our news journalists obtained a quote from the research, "The morphology, thermal, mechanical, barrier, migration and antibacterial properties of the nanocomposites were investigated. The nanoparticles acted as nucleating agents, increasing the crystallization temperature and the degree of crystallinity of the matrix, and as mass transport barriers, hindering the diffusion of volatiles generated during the decomposition process, leading to higher thermal stability. The Young's modulus, tensile and impact strength of the biopolymer were enhanced by up to 43%, 32% and 26%, respectively, due to the strong matrix-nanofiller interfacial adhesion attained via hydrogen bonding interactions, as revealed by the FT-IR spectra. Moreover, the nanocomposites exhibited reduced water uptake and superior gas and vapour barrier properties compared to neat PHB. They also showed antibacterial activity against both Gram-positive and Gram-negative bacteria, which was progressively improved upon increasing ZnO concentration. The migration levels of PHB/ZnO composites in both non-polar and polar simulants decreased with increasing nanoparticle content, and were well below the current legislative limits for food packaging materials."

According to the news editors, the research concluded: "These biodegradable nanocomposites show great potential as an alternative to synthetic plastic packaging materials especially for use in food and beverage containers and disposable applications."

For more information on this research see: Poly(3-hydroxybutyrate)/ZnO Bionanocomposites with Improved Mechanical, Barrier and Antibacterial Properties. International Journal of Molecular Sciences, 2014;15(6):10950-10973. International Journal of Molecular Sciences can be contacted at: Mdpi Ag, Postfach, Ch-4005 Basel, Switzerland (see also 3-Hydroxybutyric Acid).

Our news journalists report that additional information may be obtained by contacting A.M. Diez-Pascual, Airbus Operat SL, Madrid 28906, Spain.

Keywords for this news article include: Spain, Madrid, Europe, Nanoparticle, Nanocomposite, Nanotechnology, Carboxylic Acids, Hydroxybutyrates, Organic Chemicals, 3-Hydroxybutyric Acid, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Science Letter


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