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Comparative study of membranotropic action of single- and multi-walled carbon nanotubes

Paper ID Volume ID Publish Year Pages File Format Full-Text
20730 43188 2013 6 PDF Available
Title
Comparative study of membranotropic action of single- and multi-walled carbon nanotubes
Abstract

The aim of the present work is the investigation of the interactions of single-walled and multi-walled carbon nanotubes (further referred as SWCNTs and MWCNTs, respectively) with bimolecular lipid model membrane (BLM) and cellular plasma membrane (PM). The findings demonstrate that both SWCNTs and MWCNTs (in concentration range of 10−4 to 10−1 mg ml−1) are capable to penetrate through the region of hydrophobic fatty acid residues of phospholipids and to form molecular associates in the bilayer that have conductive properties of molecular pores type. The formed pores were shown to enable phosphatidylserine externalization from inner to outer PM leaflet. Both types of CNTs increase the specific conductivity and decrease the specific capacity of BLM.

Keywords
Carbon nanotubes; Bimolecular lipid model membrane; Cellular plasma membrane; Specific capacity; Specific conductivity
First Page Preview
Comparative study of membranotropic action of single- and multi-walled carbon nanotubes
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Bioscience and Bioengineering - Volume 115, Issue 6, June 2013, Pages 674–679
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering