Disease Markers

Disease Markers / 2002 / Article

Open Access

Volume 18 |Article ID 856032 | https://doi.org/10.1155/2002/856032

Arun Majumdar, "Bioassays Based on Molecular Nanomechanics", Disease Markers, vol. 18, Article ID 856032, 8 pages, 2002. https://doi.org/10.1155/2002/856032

Bioassays Based on Molecular Nanomechanics

Received12 Feb 2003
Accepted12 Feb 2003


Recent experiments have shown that when specific biomolecular interactions are confined to one surface of a microcantilever beam, changes in intermolecular nanomechanical forces provide sufficient differential torque to bend the cantilever beam. This has been used to detect single base pair mismatches during DNA hybridization, as well as prostate specific antigen (PSA) at concentrations and conditions that are clinically relevant for prostate cancer diagnosis. Since cantilever motion originates from free energy change induced by specific biomolecular binding, this technique is now offering a common platform for label-free quantitative analysis of protein-protein binding, DNA hybridization DNA-protein interactions, and in general receptor-ligand interactions. Current work is focused on developing “universal microarrays” of microcantilever beams for high-throughput multiplexed bioassays.

Copyright © 2002 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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