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2D IR correlation analysis of chitosan-MMT nanocomposite system


2D IR correlation analysis of chitosan-MMT nanocomposite system

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dc.contributor.author Wesełucha-Birczyńska, Aleksandra [SAP11011404] pl
dc.contributor.author Paluszkiewicz, Czesława pl
dc.contributor.author Stodolak-Zych, Ewa pl
dc.contributor.author Hasik, Magdalena pl
dc.date.accessioned 2015-08-27T07:27:58Z
dc.date.available 2015-08-27T07:27:58Z
dc.date.issued 2012 pl
dc.identifier.issn 0924-2031 pl
dc.identifier.uri http://ruj.uj.edu.pl/xmlui/handle/item/15083
dc.language eng pl
dc.title 2D IR correlation analysis of chitosan-MMT nanocomposite system pl
dc.type JournalArticle pl
dc.description.physical 185-188 pl
dc.abstract.en Novel materials for regenerative medicine are usually composites or nanocomposites. Their main task is to stimulate damaged tissue for faster regeneration caused by enhanced activity of cells prone to intense proliferation within the defect area. One of the main requirements for such materials is bioactivity, which accelerates fixation between the material and surrounding tissue. After implanting into the body, bioactive materials create new physicochemical bonds between the material and the surrounding tissue. In their case apatite layers are formed on the implant surface without inducing growth of fibrous tissue around them. Some differences in bioactivity phenomena observed on the surface of materials depend on the mech- anism of bonding and/or time required to create a new bonding and its strength. In the case of some polymers, especially with highly porous or fibrous structures, the bioactivity phenomenon is initiated by local increase in concentration of calcium and phosphate ions which become nuclei of apatite crystal- lization. Theworkpresentstime-dependentresultsofinteractionsbetweennanocompositefoilsandsimulation body fluid solution (SBF). Nanocomposite foils were produced from chitosan (CS) and montmorillonite (MMT). The obtained foils, CS and CSM (CS+MMT) were subjected to bioactivity tests by incubation in SBF for different time. FTIR measurements were carried out on an Excalibur spectrometer using ATR method in the wave number region from 550cm − 1 to 4000cm − 1 . The reaction between foils and SBF was analyzed by 2D IR correlation spectroscopy The data obtained show local supersaturation of some characteristic groups in CS-MMT material which seems to be the result of apatite nucleation. pl
dc.subject.en 2D correlation pl
dc.subject.en Chitosan pl
dc.subject.en Bioactivity pl
dc.subject.en Nanocomposite materials pl
dc.subject.en MMT pl
dc.description.volume 60 pl
dc.description.points 25 pl
dc.identifier.doi 10.1016/j.vibspec.2011.12.004 pl
dc.identifier.eissn 1873-3697 pl
dc.title.journal Vibrational Spectroscopy pl
dc.title.volume Selected Papers from the 6th International Conference on Advanced Vibrational Spectroscopy (ICAVS-6) and Two-Dimensional Correlation Spectroscopy (2DCOS-6) Sonoma County, CA, USA, 9–17th June 2011 pl
dc.language.container eng pl
dc.affiliation Wydział Chemii : Zakład Fizyki Chemicznej pl
dc.subtype Article pl
dc.rights.original bez licencji pl
.pointsMNiSW [2012 A]: 25

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