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Updated: Jun 8, 2026

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
Published on: February 19, 2016
Antimicrobial activity of single-walled carbon nanotubes: length effect
Cheenou Yang1, Jaouad Mamouni, Yongan Tang
1Biomanufacturing Research Institute and Technology Enterprises (BRITE) and Department of Pharmaceutical Sciences, North Carolina Central University, Durham, North Carolina 27707, USA.
Abstract:
This study investigated the effect of SWCNTs' length on their antimicrobial activity to bacterial cells in suspensions. Three different lengths of SWCNTs (<1 μm, 1-5 μm, and ∼5 μm) were tested. At same weight concentration, longer SWCNTs exhibited stronger antimicrobial activity. The fluorescence and SEM images revealed that the longer SWCNTs aggregated with bacterial cells more effectively, whereas short length SWCNTs tended to aggregate themselves without involving many bacterial cells. Moreover, longer SWCNTs exhibited more pronounced concentration-dependence and treatment time-dependence on their antimicrobial activity.
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