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RESEARCH PRODUCT
An assembly of organic-inorganic composites using halloysite clay nanotubes
Giuseppe LazzaraAnna StavitskayaRawil FakhrullinYuri LvovYuri LvovAbhishek PanchalVladimir A. VinokurovGiuseppe Cavallarosubject
Polymers and PlasticsHalloysite nanotube02 engineering and technologyReview01 natural sciencesunclassified drug adsorptionFlame retardantcovalent bondColloid and Surface ChemistryhalloysiteControlled drug deliverychemistry.chemical_classificationemulsionquantum dotSurfaces and InterfacesPolymerSelf assembly021001 nanoscience & nanotechnologynanorodPickering emulsionCorrosion inhibitoroil spillSolventSelective modification Kaolinite chemicals and drugNanorodBiocompatibility0210 nano-technologyOil water interfaceYarn Covalent interactionNanotubeMaterials scienceSupramolecular chemistrysustained drug releasecatalysiengineering.material010402 general chemistryHalloysitebioremediationPhysical and Theoretical ChemistryhydrophobicityMesoporous catalystpetroleummetal nanoparticlePhase interfacemetal bindingReinforcing fillerPickering emulsion0104 chemical sciencesOrganic-inorganic compositeNanotubeFilled polymerchemistryChemical engineeringengineeringSelf-assemblyCatalystMesoporous materialdescription
Halloysite is natural tubular clay suitable as a component of biocompatible nanosystems with specific functionalities. The selective modification of halloysite inner/outer surfaces can be achieved by exploiting supramolecular and covalent interactions resulting in controlled colloidal stability adjusted to the solvent polarity. The functionalized halloysite nanotubes can be employed as reinforcing filler for polymers as well as carriers for the sustained release of active molecules, such as antioxidants, flame-retardants, corrosion inhibitors, biocides and drugs. The tubular morphology makes halloysite a perspective template for core-shell metal supports for mesoporous catalysts. The catalysts can be incorporated with selective and unselective metal binding on the nanotubes' outer surface or in the inner lumens. Micropatterns of self-assembled nanotubes have been realized by the droplet casting method. The selective modification of halloysite has been exploited to increase the nanotubes' ordering in the produced patterns. Pickering emulsions, induced by the self-assembly of halloysite nanotubes on oil-water interface, can be used for petroleum spill bioremediation and catalysis. © 2018 Elsevier Ltd
year | journal | country | edition | language |
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2018-05-01 |