NDLI: Study of Interaction between Metallothionein and CdTe Quantum Dots

Content Provider	Springer Nature Link
Author	Skalickova, Sylvie Zitka, Ondrej Nejdl, Lukas Krizkova, Sona Sochor, Jiri Janu, Libor Ryvolova, Marketa Hynek, David Zidkova, Jarmila Zidek, Vaclav Adam, Vojtech Kizek, Rene
Copyright Year	2013
Abstract	Quantum dots (QDs) belong to a new class of fluorescent agent for biochemical, medicinal or other purposes. However, QDs based on cadmium or other metals can be risky for an organism. As one of the mechanism how to detoxify cadmium-based QDs expression of metallothioneins (MT) can be considered. Due to high affinity of metallothionein to cadmium(II) ions, we attempted to develop an approach for studying of possible interaction with QDs. We prepared QDs with CdTe core and studied the interaction with MT, which we isolated from livers of Cd-administered rabbits. To study the interaction, we used the mixture of both components MT (3.6 μM): CdTe QDs (0, 0.34, 0.68, 1.02, 1.36, 1.7, 2.04 and 2.47 μM). The mixtures were studied by spectrophotometry within the range from 200 to 750 nm with detected maxima at 260 and 505 nm. Same mixtures were also analysed by differential pulse voltammetry Brdicka reaction, which supported data from spectrophotometry. Subsequently, we used fast protein liquid chromatography for purification of protein–quantum dot conjugates. We obtained the different chromatograms for (1) Apo MT, (2) CdTe QDs and (3) MT–QD complex. We also collected the fractions and subsequently analysed them on the content of Cd and MT, which confirmed the formation of CdTe QDs–MT complex.
Starting Page	345
Ending Page	353
Page Count	9
File Format	PDF
ISSN	00095893
Journal	Chromatographia
Volume Number	76
Issue Number	7-8
e-ISSN	16121112
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-02-16
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Fast protein liquid chromatography Brdicka reaction Differential pulse voltammetry Fluorimetry Spectrophotometry Separation of quantum dots ApoMT Chromatography Proteomics Pharmacy Laboratory Medicine
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Analytical Chemistry Biochemistry Clinical Biochemistry

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