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Synthetic Ligand-Coated Magnetic Nanoparticles for Microfluidic Bacterial Separation from Blood

Publication Type : Journal Article

Thematic Areas : Nanosciences and Molecular Medicine

Publisher : Nano Letters

Source : Nano Letters, Volume 14, Number 1, p.1-5 (2014)

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Campus : Kochi

School : Center for Nanosciences

Center : Amrita Center for Nanosciences and Molecular Medicine Move, Nanosciences

Department : Nanosciences and Molecular Medicine

Year : 2014

Abstract : Bacterial sepsis is a serious clinical condition that can lead to multiple organ dysfunction and death despite timely treatment with antibiotics and fluid resuscitation. We have developed an approach to clearing bacteria and endotoxin from the bloodstream, using magnetic nanoparticles (MNPs) modified with bis-Zn-DPA, a synthetic ligand that binds to both Gram-positive and Gram-negative bacteria. Magnetic microfluidic devices were used to remove MNPs bound to Escherichia coli, a Gram-negative bacterium commonly implicated in bacterial sepsis, from bovine whole blood at flows as high as 60 mL/h, resulting in almost 100% clearance. Such devices could be adapted to clear bacteria from septicemic patients.

Cite this Research Publication : J. - J. Lee, Jeong, K. Jae, Hashimoto, M., Kwon, A. H., Rwei, A., Dr. Sahadev Shankarappa, Tsui, J. H., and Kohane, D. S., “Synthetic Ligand-Coated Magnetic Nanoparticles for Microfluidic Bacterial Separation from Blood”, Nano Letters, vol. 14, pp. 1-5, 2014.

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