Functional one-dimensional lipid bilayers on carbon nanotube templates.
Use of biological machines and environments in novel bioinorganic nanostructures is critical for development of new types of biosensors, bio-NEMS devices, and functional materials. Lipid bilayers that mimic a cell membrane have already played an important role in such applications. We present supported lipid bilayers that spontaneously assemble in a continuous nanoshell around a template of a carbon nanotube wrapped with hydrophilic polymer cushion layers. We demonstrate that such 1-D lipid membranes are fluid and can heal defects, even over repeated damage-recovery cycles. A simple diffusion model can describe mobility of lipid molecules in these 1-D nanoshells. These structures could lead to the development of new classes of biosensors and bioelectronic devices.
Artyukhin
Alexander B
AB
Biosecurity and Nanosciences Laboratory, Lawrence Livermore National Laboratory, California 94550, USA.
Shestakov
Aleksei
A
Harper
Jennifer
J
Bakajin
Olgica
O
Stroeve
Pieter
P
Noy
Aleksandr
A
D040761:Biomimetic Materials / Q000138:chemical synthesis / Q000737:chemistry; D008051:Lipid Bilayers / Q000138:chemical synthesis / Q000737:chemistry*; D018613:Microscopy, Confocal; D046529:Microscopy, Electron, Transmission; D008856:Microscopy, Fluorescence; D037742:Nanotubes, Carbon / Q000737:chemistry*
D008051:Lipid Bilayers; D037742:Nanotubes, Carbon