Cryogels: Morphological, structural and adsorption characterisation

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dc.contributor.authorGun'ko, Vladimir M.
dc.contributor.authorSavina, Irina N.
dc.contributor.authorMikhalovsky, Sergey V.
dc.creatorVladimir M., Gun'ko
dc.date.accessioned2017-12-21T05:13:05Z
dc.date.available2017-12-21T05:13:05Z
dc.date.issued2013-01-01
dc.description.abstractAbstract Experimental results on polymer, protein, and composite cryogels and data treatment methods used for morphological, textural, structural, adsorption and diffusion characterisation of the materials are analysed and compared. Treatment of microscopic images with specific software gives quantitative structural information on both native cryogels and freeze-dried materials that is useful to analyse the drying effects on their structure. A combination of cryoporometry, relaxometry, thermoporometry, small angle X-ray scattering (SAXS), equilibrium and kinetic adsorption of low and high-molecular weight compounds, diffusion breakthrough of macromolecules within macroporous cryogel membranes, studying interactions of cells with cryogels provides a consistent and comprehensive picture of textural, structural and adsorption properties of a variety of cryogels. This analysis allows us to establish certain regularities in the cryogel properties related to narrow (diameter 0.4<d<2nm), middle (2<d<50nm) and broad (50<d<100nm) nanopores, micropores (100nm<d<100μm) and macropores (d>100μm) with boundary sizes within modified life science pore classification. Particular attention is paid to water bound in cryogels in native superhydrated or freeze-dried states. At least, five states of water — free unbound, weakly bound (changes in the Gibbs free energy−ΔG<0.5–0.8kJ/mol) and strongly bound (−ΔG>0.8kJ/mol), and weakly associated (chemical shift of the proton resonance δH=1–2ppm) and strongly associated (δH=3–6ppm) waters can be distinguished in hydrated cryogels using 1H NMR, DSC, TSDC, TG and other methods. Different software for image treatment or developed to analyse the data obtained with the adsorption, diffusion, SAXS, cryoporometry and thermoporometry methods and based on regularisation algorithms is analysed and used for the quantitative morphological, structural and adsorption characterisation of individual and composite cryogels, including polymers filled with solid nano- or microparticles.en_US
dc.identifierDOI:10.1016/j.cis.2012.11.001
dc.identifier.citationVladimir M. Gun'ko, Irina N. Savina, Sergey V. Mikhalovsky, Cryogels: Morphological, structural and adsorption characterisation, In Advances in Colloid and Interface Science, Volumes 187–188, 2013, Pages 1-46en_US
dc.identifier.issn00018686
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S000186861200142X
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/2988
dc.language.isoenen_US
dc.publisherAdvances in Colloid and Interface Scienceen_US
dc.relation.ispartofAdvances in Colloid and Interface Science
dc.rights.licenseCopyright © 2012 Elsevier B.V. All rights reserved.
dc.subjectCryogelen_US
dc.subjectStructural characteristicsen_US
dc.subjectMicroscopic image treatmenten_US
dc.subjectCryoporometryen_US
dc.subjectThermoporometryen_US
dc.subjectAdsorptionen_US
dc.subjectDiffusionen_US
dc.subjectInterfacial phenomenaen_US
dc.titleCryogels: Morphological, structural and adsorption characterisationen_US
dc.typeArticleen_US
elsevier.aggregationtypeJournal
elsevier.coverdate2013-01-01
elsevier.coverdisplaydateJanuary 2013
elsevier.endingpage46
elsevier.identifier.doi10.1016/j.cis.2012.11.001
elsevier.identifier.eid1-s2.0-S000186861200142X
elsevier.identifier.piiS0001-8686(12)00142-X
elsevier.identifier.scopusid84893466296
elsevier.openaccess0
elsevier.openaccessarticlefalse
elsevier.openarchivearticlefalse
elsevier.startingpage1
elsevier.teaserExperimental results on polymer, protein, and composite cryogels and data treatment methods used for morphological, textural, structural, adsorption and diffusion characterisation of the materials are...
elsevier.volume187–188
workflow.import.sourcescience

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