LA-ICP-MS as a sensitive method for detection of nanoparticle-antibody conjugates in immunochemistry analysis

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Authors

VLČNOVSKÁ Marcela KUCHYNKA Michaela ŠTOSSOVÁ Aneta HOLCOVÁ POLANSKÁ Hana VACULOVICOVA Marketa VACULOVIČ Tomáš MASAŘÍK Michal

Year of publication 2019
Type Article in Proceedings
Conference MENDELNET 2019: PROCEEDINGS OF 26TH INTERNATIONAL PHD STUDENTS CONFERENCE
MU Faculty or unit

Faculty of Science

Citation
Web https://mendelnet.cz/artkey/mnt-201901-0131_LA-ICP-MS-as-a-sensitive-method-for-detection-of-nanoparticle-antibody-conjugates-in-immunochemistry-analysis.php?back=/magno/mnt/2019/mn1.php?secid=4
Keywords gold nanoparticles; LA-ICP-MS; immunochemistry; dot-blot; protein detection; p53
Description Laser ablation followed by inductively coupled plasma mass spectrometry is an analytical method suitable for low concentration measurement of elements in a sample. This can be used not only for detection of elemental distribution within a sample but also as a detection means for immunoanalytical techniques using nanoparticle-antibody conjugates as recognition elements. The aim of this work was to prepare a conjugate of 10nm gold nanoparticles with anti-p53 antibody, to verify the antigen binding ability, and to use this construct for identification of p53 in a real sample of cell lysate. It has been experimentally verified that it is possible to use nanoparticle-modified antibodies for immunochemical analysis coupled to LA-ICP-MS detection. However, the nonspecific sorption of nanoparticles on the sample surface needs to be minimized by optimization of the blocking step.
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