<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Immobilization of antibodies has a number of promising applications, including detection of biomolecules and cells. Well-oriented antibodies are required to bind them effectively. To eliminate the problem of random antibodies’ orientation, the surface of the device can be modified with silanes. This study aimed at elucidating if selected aminosilanes were able to bind antibodies in the appropriate orientation and thus retain their binding activity. Silanization of glass slides was performed using three amino-functional trialkoxysilanes – A, AE, and AEE. The immunofluorescent reaction was used to evaluate the potential of the silanized glass surface to bind anti-EpCAM antibodies. The affinity of selected anti-EpCAM HEA125 antibodies labeled with fluorochrome to tested silanized surfaces was evaluated by measuring the mean fluorescence intensity (MFI) in each analyzed area. The presented silanes effectively bound antibodies. Higher fluorescence intensity was noticed in the case of silane-coated glass slides in comparison to unmodified ones. The differences in the contact angles also confirmed this result. In the case of silane A, the fluorescence intensity reflected the amount of bound antibodies. However, there was no such a relation in the case of the silanes AE and AEE. Although our research gave promising results, the usefulness of selected silanes needs to be confirmed by further studies using cancer cells.</p><p><bold>Running title</bold>: Aminosilanes as enhancers of antibody immobilization</p></abstract>

Immobilization of antibodies has a number of promising applications, including detection of biomolecules and cells. Well-oriented antibodies are required to bind them effectively. To eliminate the problem of random antibodies’ orientation, the surface of the device can be modified with silanes. This study aimed at elucidating if selected aminosilanes were able to bind antibodies in the appropriate orientation and thus retain their binding activity. Silanization of glass slides was performed using three amino-functional trialkoxysilanes – A, AE, and AEE. The immunofluorescent reaction was used to evaluate the potential of the silanized glass surface to bind anti-EpCAM antibodies. The affinity of selected anti-EpCAM HEA125 antibodies labeled with fluorochrome to tested silanized surfaces was evaluated by measuring the mean fluorescence intensity (MFI) in each analyzed area. The presented silanes effectively bound antibodies. Higher fluorescence intensity was noticed in the case of silane-coated glass slides in comparison to unmodified ones. The differences in the contact angles also confirmed this result. In the case of silane A, the fluorescence intensity reflected the amount of bound antibodies. However, there was no such a relation in the case of the silanes AE and AEE. Although our research gave promising results, the usefulness of selected silanes needs to be confirmed by further studies using cancer cells.Running title: Aminosilanes as enhancers of antibody immobilization

Positive influence of aminosilanes on anti-EpCAM antibody immobilization on a glass surface

Medical Journal of Cell Biology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Immobilization of antibodies has a number of promising applications, including detection of biomolecules and cells. Well-oriented antibodies are required to...

Positive influence of aminosilanes on anti-EpCAM antibody immobilization on a glass surface

Published Online: Jun 28, 2021

Page range: 93 - 99

Received: May 16, 2021

Accepted: Jun 09, 2021

DOI: https://doi.org/10.2478/acb-2021-0013

Keywords
aminosilanes, silanization, antibody immobilization, anti-EpCAM antibody, immunofluorescence, contact angle measurement

© 2021 Paula Kamińska, Karolina Buszka, Przemysław Pietras, Maciej Zabel, Michał Nowicki, Joanna Budna-Tukan, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Figure 2

Positive influence of aminosilanes on anti-EpCAM antibody immobilization on a glass surface

Published Online: Jun 28, 2021

Page range: 93 - 99

Received: May 16, 2021

Accepted: Jun 09, 2021

DOI: https://doi.org/10.2478/acb-2021-0013

Keywordsaminosilanes, silanization, antibody immobilization, anti-EpCAM antibody, immunofluorescence, contact angle measurement

© 2021 Paula Kamińska, Karolina Buszka, Przemysław Pietras, Maciej Zabel, Michał Nowicki, Joanna Budna-Tukan, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Figure 1

Figure 2

Keywords
aminosilanes, silanization, antibody immobilization, anti-EpCAM antibody, immunofluorescence, contact angle measurement