Intrinsic Fluorescence of PAMAM Dendrimers—Quenching Studies
| العنوان: | Intrinsic Fluorescence of PAMAM Dendrimers—Quenching Studies |
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| المؤلفون: | Anna Janaszewska, Malgorzata Konopka, Barbara Klajnert-Maculewicz |
| المصدر: | Polymers Polymers, Vol 10, Iss 5, p 540 (2018) |
| بيانات النشر: | MDPI, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Quenching, Pamam dendrimers, Polymers and Plastics, Communication, quenching, 02 engineering and technology, General Chemistry, Intrinsic fluorescence, PAMAM, autofluorescence, 010402 general chemistry, 021001 nanoscience & nanotechnology, Photochemistry, 01 natural sciences, Fluorescence, 0104 chemical sciences, intrinsic emission, lcsh:QD241-441, chemistry.chemical_compound, lcsh:Organic chemistry, chemistry, Acrylamide, Dendrimer, Steady state fluorescence, 0210 nano-technology |
| الوصف: | Intrinsic, non-traditional fluorescence of polyamidoamine (PAMAM) dendrimers that do not possess classical fluorophores has been attracting considerable interest for the last decade. Many hypotheses regarding the source of the fluorescence have appeared, but some of them are still disputable. In order to shed new light on the nature of the phenomenon, we applied quenchers that are normally used to study intrinsic fluorescence of proteins (i.e., KI, CsCl, and acrylamide). KI and acrylamide efficiently quenched steady state fluorescence of PAMAM G2, PAMAM G3, and PAMAM G4 dendrimers. Stern-Volmer plots exhibited a downward curvature that has been elucidated by heterogenous emission. We assume that there are two distinct fluorescent moieties in the dendrimer structure that are characterized by different accessibility to the quenchers. |
| اللغة: | English |
| تدمد: | 2073-4360 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cabb30e6b610b9471825d3603da5302 http://europepmc.org/articles/PMC6415388 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....2cabb30e6b610b9471825d3603da5302 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734360 |
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