Molecular Electronics with Carbon Nanotubes

2002 ◽  
Vol 35 (12) ◽  
pp. 1026-1034 ◽  
Author(s):  
Phaedon Avouris
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Electronics

Suction Energy for Double-Stranded DNA Inside Single-Walled Carbon Nanotubes

2017 ◽  
Vol 70 (4) ◽  
pp. 387-400 ◽  
Author(s):  
Mansoor H Alshehri ◽  
James M Hill
Keyword(s):  
Carbon Nanotubes ◽  
Mathematical Modelling ◽  
Molecular Electronics ◽  
Continuum Approximation ◽  
Suction Force ◽  
Dsdna Molecule ◽  
Double Stranded Dna ◽  
Modelling Techniques ◽  
Dynamics Simulations ◽  
Walled Carbon Nanotubes

Summary Deoxyribonucleic acid (DNA) and carbon nanotubes (CNTs) constitute hybrid materials with the potential to provide new components with many applications in various technology areas, such as molecular electronics, field devices and medical applications. Using classical applied mathematical modelling, we investigate the suction force experienced by a double-stranded DNA (dsDNA) molecule which is assumed to be located on the axis near an open end of a semi-infinite single-walled CNT. We employ both the 6-12 Lennard-Jones potential and the continuum approximation, which assumes that a discrete atomic structure can be replaced by a surface with constant average atomic density. While most research in the area is dominated by molecular dynamics simulations, here we use elementary mechanical principles and classical applied mathematical modelling techniques to formulate explicit analytical criteria and ideal model behaviour. We observe that the suction behaviour depends on the radius of the CNT, and we predict that it is less likely for a dsDNA molecule to be accepted into the CNT when the value of the tube radius is ${<}12.9$ Å. The dsDNA molecule will be accepted into the CNT for radii lager than 13 Å, and we show that the optimal single-walled CNT necessary to fully enclose the DNA molecule has a radius of 13.56 Å, which approximately corresponds to the chiral vector numbers (20, 20). This means that the ideal single-walled CNT to be used to encapsulate a dsDNA is (20, 20) which has the required radius of 13.56 Å.

scholarly journals Recent Advances in Molecular Electronics Based on Carbon Nanotubes

2010 ◽  
Vol 64 (6) ◽  
pp. 414-420 ◽  
Author(s):  
Jean-Philippe Bourgoin ◽  
Stéphane Campidelli ◽  
Pascale Chenevier ◽  
Vincent Derycke ◽  
Arianna Filoramo ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Electronics ◽  
Recent Advances

Oxford Handbook of Nanoscience and Technology

2017 ◽  
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Molecular Electronics ◽  
Self Assembly ◽  
Laser Applications ◽  
Assembled Monolayers ◽  
Device Applications ◽  
Computational Sciences ◽  
Hybrid Devices ◽  
Nanoscience And Technology

This volume highlights engineering and related developments in the field of nanoscience and technology, with a focus on frontal application areas like silicon nanotechnologies, spintronics, quantum dots, carbon nanotubes, and protein-based devices as well as various biomolecular, clinical and medical applications. Topics include: the role of computational sciences in Si nanotechnologies and devices; few-electron quantum-dot spintronics; spintronics with metallic nanowires; Si/SiGe heterostructures in nanoelectronics; nanoionics and its device applications; and molecular electronics based on self-assembled monolayers. The volume also explores the self-assembly strategy of nanomanufacturing of hybrid devices; templated carbon nanotubes and the use of their cavities for nanomaterial synthesis; nanocatalysis; bifunctional nanomaterials for the imaging and treatment of cancer; protein-based nanodevices; bioconjugated quantum dots for tumor molecular imaging and profiling; modulation design of plasmonics for diagnostic and drug screening; theory of hydrogen storage in nanoscale materials; nanolithography using molecular films and processing; and laser applications in nanotechnology. The volume concludes with an analysis of the various risks that arise when using nanomaterials.

Optimizing the Purification of Biofunctionalized Carbon Nanotubes

2006 ◽  
Author(s):  
M. S. Arnold ◽  
S. I. Stupp ◽  
M. C. Hersam
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Electronics ◽  
Density Gradient Centrifugation ◽  
Gradient Centrifugation ◽  
Physical Structure ◽  
One Dimensional ◽  
Purification Time ◽  
Methods Of Synthesis ◽  
Separation Strategy ◽  
Walled Carbon Nanotubes

The utilization of single-walled carbon nanotubes (SWNTs) in large quantities for molecular electronics, optoelectronics, biosensors, and medical applications will require SWNTs of the same physical structure, electronic type, and band gap. Since current methods of synthesis produce mixtures of nanotubes with different physical structures and electrical properties, the development of strategies for the postproduction separation of these one-dimensional materials is highly desirable. In this work, we demonstrate a scalable method for separating SWNTs by diameter using density gradient centrifugation. Of particular interest for biosensing applications is the bulk purification of SWNTs through centrifugation of DNA wrapped SWNTs in aqueous density gradients. The dependence of this process on DNA sequence and length has been determined. In addition, strategies for decreasing the purification time are outlined. Overall, this nondestructive and scalable separation strategy is expected to impact a variety of applications for SWNTs where monodisperse structure and properties are essential.

Understanding Noncovalent Absorption and Packing of 1-Pyrene Butanoic Acid Succinimidyl Ester on Single Walled Carbon Nanotubes

2003 ◽  
Vol 772 ◽  
Author(s):  
Si-Ping Han ◽  
Tahir Cagin ◽  
William A. Goddard
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Electronics ◽  
High Performance ◽  
Single Walled Carbon Nanotubes ◽  
Butanoic Acid ◽  
Structural Arrangement ◽  
Single Walled Carbon ◽  
Strong Potential ◽  
Succinimidyl Ester ◽  
Walled Carbon Nanotubes

AbstractSingle walled carbon nanotubes (SWNT) have unique properties that give them strong potential for applications in high performance sensors and molecular electronics.1 One problem relevant to such technological applications is the functionalization of SWNT sidewalls. Recent experiments at Stanford have shown that 1-pyrene butanoic acid succinimidyl ester (PBSE) shows promise for non-covalent absorption onto SWNT sidewalls. We have conducted studies aimed at understanding the structural arrangement and packing of PBSE on the SWNT sidewall.

Sign in / Sign up

Export Citation Format

Share Document