DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Young-Chul | ko |
dc.contributor.author | Lee, Tae-Ho | ko |
dc.contributor.author | Han, Hyo-Kyung | ko |
dc.contributor.author | Go, Woon-Jung | ko |
dc.contributor.author | Yang, Ji-Won | ko |
dc.contributor.author | Shin, Hyun-Jae | ko |
dc.date.accessioned | 2013-03-11T22:21:43Z | - |
dc.date.available | 2013-03-11T22:21:43Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-05 | - |
dc.identifier.citation | PHOTOCHEMISTRY AND PHOTOBIOLOGY, v.86, no.3, pp.520 - 527 | - |
dc.identifier.issn | 0031-8655 | - |
dc.identifier.uri | http://hdl.handle.net/10203/100481 | - |
dc.description.abstract | We report the preparation of aminopropyl-functionalized magnesium phyllosilicate (Mg-organoclay) conjugated to fluorescein isothiocyanate (FITC) functionality (FITC-organoclay) by one-pot sol-gel synthesis. The physical characteristics of the Mg- and FITC-organoclays were examined by scanning electron microscopy (SEM), X-ray diffraction (XRD), FT-IR and UV-Vis spectrophotometry. X-ray fluorescence and elemental analysis were conducted to confirm the composition of the Mg-organoclay. The FITC-organoclay particles were polydispersed with an average particle size of similar to 50 nm, as determined from SEM images. The XRD patterns of FITC-organoclay exhibited broad peaks and reduced basal d(001) indicating a less condensed and more disordered structure than was observed for Mg-organoclay. The conjugation between FITC- and Mg-organoclay was characterized by FT-IR spectroscopy. Fluorescence excitation and emission spectral data demonstrated the successful conjugation of FITC dye molecules to the Mg-organoclay. The time-resolved fluorescence measurements revealed that FITC had a lifetime of 4.58 ns, whereas the lifetime of FITC-organoclay required a double exponential fit (tau(1,2) = 0.72 and 2.68 ns). As a result, the lifetime of the FITC-organoclay was shorter than that of FITC in ethanol and indicated moderate photostability in the solution state. The cellular uptake of FITC-organoclay in human lung alveolar carcinoma epithelial cells (A549) was quantified and characterized. | - |
dc.language | English | - |
dc.publisher | AMER SOC PHOTOBIOLOGY | - |
dc.subject | MESOPOROUS SILICA NANOPARTICLES | - |
dc.subject | MAGNESIUM PHYLLOSILICATE | - |
dc.subject | CHITOSAN NANOPARTICLES | - |
dc.subject | A549 CELLS | - |
dc.subject | NANOCOMPOSITES | - |
dc.subject | DNA | - |
dc.subject | PHOSPHATIDYLCHOLINE | - |
dc.subject | INTERCALATION | - |
dc.subject | ENHANCEMENT | - |
dc.subject | EMISSION | - |
dc.title | Optical Properties of Fluorescein-labeled Organoclay | - |
dc.type | Article | - |
dc.identifier.wosid | 000277301700006 | - |
dc.identifier.scopusid | 2-s2.0-77951799134 | - |
dc.type.rims | ART | - |
dc.citation.volume | 86 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 520 | - |
dc.citation.endingpage | 527 | - |
dc.citation.publicationname | PHOTOCHEMISTRY AND PHOTOBIOLOGY | - |
dc.identifier.doi | 10.1111/j.1751-1097.2009.00701.x | - |
dc.embargo.liftdate | 9999-12-31 | - |
dc.embargo.terms | 9999-12-31 | - |
dc.contributor.localauthor | Yang, Ji-Won | - |
dc.contributor.nonIdAuthor | Lee, Tae-Ho | - |
dc.contributor.nonIdAuthor | Han, Hyo-Kyung | - |
dc.contributor.nonIdAuthor | Go, Woon-Jung | - |
dc.contributor.nonIdAuthor | Shin, Hyun-Jae | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | MESOPOROUS SILICA NANOPARTICLES | - |
dc.subject.keywordPlus | MAGNESIUM PHYLLOSILICATE | - |
dc.subject.keywordPlus | CHITOSAN NANOPARTICLES | - |
dc.subject.keywordPlus | A549 CELLS | - |
dc.subject.keywordPlus | NANOCOMPOSITES | - |
dc.subject.keywordPlus | DNA | - |
dc.subject.keywordPlus | PHOSPHATIDYLCHOLINE | - |
dc.subject.keywordPlus | INTERCALATION | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
dc.subject.keywordPlus | EMISSION | - |
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