Structure and Morphology of Microbial Degraded Poly(epsilon-caprolactone)/Graphite Oxide Composite
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F14%3APU106040" target="_blank" >RIV/00216305:26620/14:PU106040 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10924-013-0630-y" target="_blank" >https://link.springer.com/article/10.1007/s10924-013-0630-y</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10924-013-0630-y" target="_blank" >10.1007/s10924-013-0630-y</a>
Alternative languages
Result language
angličtina
Original language name
Structure and Morphology of Microbial Degraded Poly(epsilon-caprolactone)/Graphite Oxide Composite
Original language description
Biodegradation of poly(epsilon-caprolactone) composite with graphite oxide (GO) by the action of Bacillus subtilis (BS) was studied in this work. Nanocomposite produced in a form of thin film was exposed to nutrient cultivation medium with BS as well as to abiotic nutrient medium (control run) at 30 A degrees C. The matrix itself was exposed to the same conditions for comparison. Biodegradation was demonstrated by the weight loss and the decrease of molecular weight during 21 days of the experiment as well as by changes in the surface morphology and structure. Both degraded and control materials were characterized by confocal laser scanning microscopy, differential scanning calorimetry, thermogravimetry, and Fourier transform infrared spectroscopy with attenuated total reflectance. The bacterial growth expressed as the measure of the optical density/turbidity in McFarland units and pH of medium were measured in situ during the experiment. Lipolytic activity of BS was determined by spectrophotometric assay. Degradation process was accompanied by the increase of matrix crystallinity degree. GO served as nucleating agent and facilitated absorption of cultivation media into the composite which led to the increase of the crystallinity degree also for control nanocomposite specimens. It was not evaluated to be promoter of biodegradation. The surface cracks formation was initiated by BS action. Large surface cracks were formed on BS-degraded composite surfaces while surface erosion was more significant on BS-degraded matrix.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10404 - Polymer science
Result continuities
Project
<a href="/en/project/ED1.1.00%2F02.0068" target="_blank" >ED1.1.00/02.0068: Central european institute of technology</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
JOURNAL OF POLYMERS AND THE ENVIRONMENT
ISSN
1566-2543
e-ISSN
1572-8900
Volume of the periodical
22
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
190-199
UT code for WoS article
000335728400005
EID of the result in the Scopus database
2-s2.0-84900307957