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Novel Schiff base (DBDDP) selective detection of Fe (III): Dispersed in aqueous solution and encapsulated in silica cross-linked micellar nanoparticles in living cell
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science. School of Chemistry and biology, Advanced Institute of Materials Science, Changchun University of Technology, Changchun.
School of Chemistry and biology, Advanced Institute of Materials Science, Changchun University of Technology, Changchun.
School of Chemistry and biology, Advanced Institute of Materials Science, Changchun University of Technology, Changchun.
School of Chemistry and biology, Advanced Institute of Materials Science, Changchun University of Technology, Changchun.
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2018 (English)In: Journal of Colloid and Interface Science, ISSN 0021-9797, E-ISSN 1095-7103, Vol. 514, p. 357-363Article in journal (Refereed) Published
Abstract [en]

This work demonstrated the synthesis of (4E)-4-(4-(diphenylamino)benzylideneamino)-1,2-dihydro-1,5- dimethyl-2-phenylpyrazol-3-one (DBDDP) for Fe (III) detection in aqueous media and in the core of silica cross-linked micellar nanoparticles in living cells. The free DBDDP performed fluorescence enhancement due to Fe (III)-promoted hydrolysis in a mixed aqueous solution, while the DBDDP-doped silica cross-linked micellar nanoparticles (DBDDP-SCMNPs) performed an electron-transfer based fluorescence quenching of Fe (III) in living cells. The quenching fluorescence of DBDDP-SCMNPs and the concentration of Fe (III) exhibited a linear correlation, which was in accordance with the Stern-Volmer equation. Moreover, DBDDP-SCMNPs showed a low limit of detection (LOD) of 0.1 ppm and an excellent selectivity against other metal ions. Due to the good solubility and biocompatibility, DBDDP-SCMNPs could be applied as fluorescence quenching nanosensors in living cells.

Place, publisher, year, edition, pages
Elsevier, 2018. Vol. 514, p. 357-363
National Category
Other Materials Engineering
Research subject
Engineering Materials
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URN: urn:nbn:se:ltu:diva-67104DOI: 10.1016/j.jcis.2017.12.050ISI: 000424963700039PubMedID: 29277057Scopus ID: 2-s2.0-85038882044OAI: oai:DiVA.org:ltu-67104DiVA, id: diva2:1168704
Note

Validerad;2018;Nivå 2;2018-01-10 (andbra)

Available from: 2017-12-21 Created: 2017-12-21 Last updated: 2021-10-15Bibliographically approved

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Grahn, Johnny

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