2013/01/31 by Jung‐Jae Lee, Kyung Jae Jeong, Michinao Hashimoto +5 · 2 citations
Biochemistry, Genetics and Molecular Biology · Engineering · #Bacterial Identification and Susceptibility Testing #Microfluidic and Bio-sensing Technologies #Biosensors and Analytical Detection
paper · doi:10.1021/nl3047305
openalex publication_date 2013/01/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/16
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.