Switchable aptamers

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United States of America Patent

PATENT NO 9644202
SERIAL NO

14277110

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Abstract

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The disclosure relates to a switchable aptamer having a high affinity for a selected target such as a virus, cell or antibody when in the presence of a binding ion and a low affinity for said target in the absence of said binding ion. The switchable aptamer may be isolated from a pool comprising a mixture of aptamers by incubating the pool with the target ligand and a binding ion to form target-aptamer complexes; separating unbound aptamer molecules from the target-aptamer complexes; contacting the target-aptamer complexes with a chelating agent having affinity for the binding ion wherein a switchable aptamer specific to said target is released from the target-aptamer complexes; and isolating the switchable aptamer released in the preceding step.

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Patent Owner(s)

Patent OwnerAddress
UNIVERSITY OF OTTAWA3042-800 KING EDWARD AVE SUITE 400 OTTAWA K1N 6N5

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berezovski, Maxim V Ottawa, CA 2 2
Ghobadloo, Shahrokh Ottawa, CA 2 2
Labib, Mahmoud Aziz Mahmoud Ottawa, CA 2 2
Muharemagic, Darija Gatineau, CA 2 2
Wehbe, Mohamed Ottawa, CA 3 10
Zamay, Anna S Krasnoyarsk, RU 2 2

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