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Physicochemical and biological characterization of nanocomposites made of segmented polyurethanes and Cloisite 30B.
J Biomater Appl. 2013 Jul; 28(1):38-48.JB

Abstract

Nanocomposites were prepared with segmented polyurethanes and Cloisite 30B by either solution mixing or in situ polymerization and characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. Cytotoxicity and genotoxicity were assessed with lymphocytes while cell viability was measured by the methyl tetrazolium assay using fibroblasts. It was found that in situ polymerization rendered exfoliated nanocomposites with higher glass transition temperature, tensile modulus and thermal stability compared to nanocomposites obtained by solution mixing. The mitotic index of lymphocytes was significantly reduced at high clay concentrations (6 wt% and 10 wt%), while fibroblast viability improved in the presence of extract obtained after days 2 and 7.

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Authors+Show Affiliations

Moo-Espinosa JI
Centro de Investigación Científica de Yucatán A.C., México.
Solís-Correa R
No affiliation info available
Vargas-Coronado R
No affiliation info available
Cervantes-Uc JM
No affiliation info available
Cauich-Rodríguez JV
No affiliation info available
Owen PQ
No affiliation info available
Aguilar-Santamaría MA
No affiliation info available
Gutiérrez MF
No affiliation info available
del Barrio JS
No affiliation info available

MeSH

BentoniteBiocompatible MaterialsCell SurvivalCells, CulturedFibroblastsHumansLymphocytesMaterials TestingMicroscopy, Electron, ScanningMitosisNanocompositesNanotechnologyPolyurethanesSpectroscopy, Fourier Transform InfraredTensile StrengthThermodynamicsX-Ray Diffraction

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23812945

Citation

Moo-Espinosa, J I., et al. "Physicochemical and Biological Characterization of Nanocomposites Made of Segmented Polyurethanes and Cloisite 30B." Journal of Biomaterials Applications, vol. 28, no. 1, 2013, pp. 38-48.
Moo-Espinosa JI, Solís-Correa R, Vargas-Coronado R, et al. Physicochemical and biological characterization of nanocomposites made of segmented polyurethanes and Cloisite 30B. J Biomater Appl. 2013;28(1):38-48.
Moo-Espinosa, J. I., Solís-Correa, R., Vargas-Coronado, R., Cervantes-Uc, J. M., Cauich-Rodríguez, J. V., Owen, P. Q., Aguilar-Santamaría, M. A., Gutiérrez, M. F., & del Barrio, J. S. (2013). Physicochemical and biological characterization of nanocomposites made of segmented polyurethanes and Cloisite 30B. Journal of Biomaterials Applications, 28(1), 38-48. https://doi.org/10.1177/0885328212436706
Moo-Espinosa JI, et al. Physicochemical and Biological Characterization of Nanocomposites Made of Segmented Polyurethanes and Cloisite 30B. J Biomater Appl. 2013;28(1):38-48. PubMed PMID: 23812945.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Physicochemical and biological characterization of nanocomposites made of segmented polyurethanes and Cloisite 30B. AU - Moo-Espinosa,J I, AU - Solís-Correa,R, AU - Vargas-Coronado,R, AU - Cervantes-Uc,J M, AU - Cauich-Rodríguez,J V, AU - Owen,P Quintana, AU - Aguilar-Santamaría,M A, AU - Gutiérrez,Mar Fernández, AU - del Barrio,J San Román, PY - 2013/7/2/entrez PY - 2013/7/3/pubmed PY - 2013/12/16/medline KW - Segmented polyurethanes KW - cytotoxicity KW - genotoxicity KW - montmorillonite KW - nanocomposites SP - 38 EP - 48 JF - Journal of biomaterials applications JO - J Biomater Appl VL - 28 IS - 1 N2 - Nanocomposites were prepared with segmented polyurethanes and Cloisite 30B by either solution mixing or in situ polymerization and characterized by Fourier transform infrared spectroscopy, differential scanning calorimetry, thermogravimetric analysis and X-ray diffraction. Cytotoxicity and genotoxicity were assessed with lymphocytes while cell viability was measured by the methyl tetrazolium assay using fibroblasts. It was found that in situ polymerization rendered exfoliated nanocomposites with higher glass transition temperature, tensile modulus and thermal stability compared to nanocomposites obtained by solution mixing. The mitotic index of lymphocytes was significantly reduced at high clay concentrations (6 wt% and 10 wt%), while fibroblast viability improved in the presence of extract obtained after days 2 and 7. SN - 1530-8022 UR - https://www.unboundmedicine.com/medline/citation/23812945/Physicochemical_and_biological_characterization_of_nanocomposites_made_of_segmented_polyurethanes_and_Cloisite_30B_ L2 - https://journals.sagepub.com/doi/10.1177/0885328212436706?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub=pubmed DB - PRIME DP - Unbound Medicine ER -