TY - GEN
T1 - Mimicking biological ion channels using boron nitride nanotubes
AU - Hilder, Tamsyn A.
AU - Gordon, Dan
AU - Chung, Shin Ho
PY - 2010
Y1 - 2010
N2 - Biological ion channels act to control a wide variety of cell functions by regulating the movement of charged ions across the cell membrane. The ability to mimic these ion channels would facilitate the development of unique biosensors, filtration devices and antibiotics. We demonstrate, using molecular and stochastic dynamics, that boron nitride nanotubes with various radii embedded in a silicon nitride membrane have the ability to mimic some of the important functions of various biological ion channels. In particular, we examine the free energy profile, and the current-voltage-concentration profiles for various ions. We find that nanotubes with a radius of 3.45, 4.83 and 5.52 are selectively permeable to water molecules, positive ions (cations) and negative ions (anions), respectively.
AB - Biological ion channels act to control a wide variety of cell functions by regulating the movement of charged ions across the cell membrane. The ability to mimic these ion channels would facilitate the development of unique biosensors, filtration devices and antibiotics. We demonstrate, using molecular and stochastic dynamics, that boron nitride nanotubes with various radii embedded in a silicon nitride membrane have the ability to mimic some of the important functions of various biological ion channels. In particular, we examine the free energy profile, and the current-voltage-concentration profiles for various ions. We find that nanotubes with a radius of 3.45, 4.83 and 5.52 are selectively permeable to water molecules, positive ions (cations) and negative ions (anions), respectively.
KW - Boron nitride nanotubes
KW - Molecular dynamics
KW - Stochastic dynamics
KW - Synthetic ion channels
UR - http://www.scopus.com/inward/record.url?scp=80555143076&partnerID=8YFLogxK
U2 - 10.1109/ICONN.2010.6045155
DO - 10.1109/ICONN.2010.6045155
M3 - Conference contribution
SN - 9781424452620
T3 - ICONN 2010 - Proceedings of the 2010 International Conference on Nanoscience and Nanotechnology
SP - 368
EP - 371
BT - ICONN 2010 - Proceedings of the 2010 International Conference on Nanoscience and Nanotechnology
T2 - 2010 3rd International Conference on Nanoscience and Nanotechnology, ICONN 2010
Y2 - 22 February 2010 through 26 February 2010
ER -