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TitleSynthesis, mechanical and thermal rheological properties of new gellan gum derivatives
Author(s)Agnello, Stefano
Gasperini, Luca
Mano, J. F.
Pitarresi, Giovanna
Palumbo, Fabio S.
Reis, R. L.
Giammona, Gaetano
KeywordsGellan gum
Physical hydrogels
Thermal scanning rheology
Mechanical properties
Issue dateFeb-2017
PublisherElsevier B.V.
JournalInternational Journal of Biological Macromolecules
CitationAgnello S., Gasperini L., Mano J. F., Pitarresi G., Palumbo F. S., Reis R. L., Giammona G. Synthesis, mechanical and thermal rheological properties of new gellan gum derivatives, Internation Journal of biological macromolecules, Vol. 98, pp. 646-653, doi:10.1016/j.ijbiomac.2017.02.029, 2017
Abstract(s)New derivatives of gellan gum (GG) were prepared by covalent attachment of octadecylamine (C18- NH2) to polysaccharide backbone via amide linkage by using bis(4-nitrophenyl) carbonate (4-NPBC) as a coupling agent. The effect of the alkyl chain grafted onto hydrophilic backbone of high molecular weight GG was investigated in terms of physicochemical properties and ability of new derivatives to form hydrogels. A series of hydrogels was obtained in solutions with different kind and concentration of ions and their stability and mechanical properties were evaluated. The obtained derivatives resulted soluble at temperature lower than starting GG and physicochemical properties of obtained hydrogels suggested their potential use in biomedical field.
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Appears in Collections:3B’s - Artigos em revistas/Papers in scientific journals

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