Effect of Temperature on Photophysical Properties of Polymeric Nanofiber Materials with Porphyrin Photosensitizers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F14%3A10288675" target="_blank" >RIV/00216208:11310/14:10288675 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/14:00431115 RIV/61388955:_____/14:00431115 RIV/61989100:27200/14:86089717
Result on the web
<a href="http://dx.doi.org/10.1021/jp5029917" target="_blank" >http://dx.doi.org/10.1021/jp5029917</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jp5029917" target="_blank" >10.1021/jp5029917</a>
Alternative languages
Result language
angličtina
Original language name
Effect of Temperature on Photophysical Properties of Polymeric Nanofiber Materials with Porphyrin Photosensitizers
Original language description
Electrospun nanofibers possess large surface to volume ratios, high porosity, and good mechanical properties that are necessary for biological applications. We prepared different types of photoactive polymeric nanofiber materials with encapsulated or externally bound porphyrin photosensitizers. The kinetics of formation and the decay of both singlet oxygen O-2((1)Delta(g)) and porphyrin triplet states that are generated by irradiation of nanofiber materials in an air atmosphere or in an air-saturated aqueous solution were measured and evaluated by luminescence and transient absorption spectroscopy in the temperature range between 5 and 60 degrees C. We found shortening of the O-2((1)Delta(g)) lifetime and a significant increase in singlet oxygen-sensitized delayed fluorescence at higher temperatures. These photophysical data show an increase in the diffusion coefficient for O-2((1)Delta(g)) with temperature, and they are consistent with a stronger antibacterial effect of the nanofiber
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA13-12496S" target="_blank" >GA13-12496S: Multifunctional photoactive nanofiber materials</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
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 Physical Chemistry B
ISSN
1520-6106
e-ISSN
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Volume of the periodical
118
Issue of the periodical within the volume
23
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
6167-6174
UT code for WoS article
000337336400014
EID of the result in the Scopus database
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