Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10062255" target="_blank" >RIV/00216208:11310/10:10062255 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Solvent relaxation studies applied to stimuli-responsive core-shell nanoparticles
Original language description
Solvent relaxation method (SRM) was used for studying the solvation and behavior of shells of polymeric micelles formed by linear polystyrene-block-poly(2-vinylpyridine)-block-poly(ethylene oxide) block copolymer (PS-PVP-PEO) in acidic aqueous media. Theshell is formed by partially ionized (protonated) PVP and PEO blocks, while the compact spherical core is formed by PS. An amphiphilic fluorescent surfactant, PATMAN was used as a probe. It was shown by independent study that it binds strongly to micelles and that its fluorescent part monitors a thin PEO layer close to the PVP-PEO interface. The behavior of PATMAN in non-viscous low-molar-mass solvents was studied first and then the study of PS-PEO, PS-PVP and PS-PVP-PEO micelles was performed. The comparison of SRM data for all studied systems allows for a plausible explanation of a slightly surprising behavior of PS-PVP-PEO micelles in acidic aqueous buffers where an unexpected aggregation of micelles is observed at low pH.
Czech name
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Czech description
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Single molecule spectroscopy and imaging iii
ISBN
978-0-8194-7967-9
ISSN
0277-786X
e-ISSN
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Number of pages
12
Pages from-to
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Publisher name
SPIE-INT SOC OPTICAL ENGINEERING, 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
Place of publication
Bellingham
Event location
San Francisco, CA
Event date
Jan 23, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000284353600002

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