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Molecularly imprinted gelatin nanoparticles for DNA delivery and in-situ fluorescence imaging of telomerase activity.
- Source :
-
Microchimica Acta . Sep2019, Vol. 186 Issue 9, pN.PAG-N.PAG. 1p. - Publication Year :
- 2019
-
Abstract
- DNA-loaded molecularly imprinted gelatin nanoparticles (GDMI-NPs) were prepared to deliver the Cy3- and Cy5-labelled DNA probe to a tumor region. This allows the activity of telomerase can be detected over 3–400 cells with a low detection limit (3 cells). Fluorescence images were acquired at an excitation wavelength of 535 nm and the emission from the green channel (550–580 nm; label Cy3) and the red channel (650–680 nm; label Cy5). HeLa cells and HepG2 cells were both used to test the performance of GDMI-NPs. Experimental results confirmed the GDMI-NPs has hardly retained in liver and spleen tissue, and its circulated time was longer than that of non-imprinted nanoparticles in blood. The ability of GDMI-NPs to resist immuno stress and anti-macrophage phagocytosis shows great potential for cancer diagnosis and as a drug carrier. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00263672
- Volume :
- 186
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Microchimica Acta
- Publication Type :
- Academic Journal
- Accession number :
- 138578770
- Full Text :
- https://doi.org/10.1007/s00604-019-3671-7