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Syntenic Reconstruction of Microbial Chromosomal Mutations

Cutler R., Gambis A., Bard College, US

In this paper, we propose a method to reconstruct the evolutionary history of chromosomal modifications between groups of related species using conservation of synteny. Starting from the most closely related species, as defined by the [...]

Converging Technologies (NBIC)

Bainbridge W.S., National Science Foundation, US

The convergence of nanotechnology, biotechnology, information technology and cognitive science can greatly improve human performance over the next ten to twenty years. The chief areas of application include: expanding human cognition and communication, improving human [...]

A Fokker-Planck Approach For Modeling Integrated NanoBio Systems

Jenkins J.W., Sundaram S., CFD Research Corporation, US

Physics-based, high-fidelity simulations have emerged as indispensable tools in the design of complex, microfluidic devices (lab-on-chip). However, ab-initio analysis becomes increasingly complicated as the dimensions of the device approach nanoscales and molecular information/interactions must be [...]

Biologically Inspired Controls over Assembly of Crystalline Nanostructures

De Yoreo J.J., Orme C.A., Qiu R., Dove P.M., Lawrence Livermore National Laboratory, US

By utilizing small molecules and proteins to modulate crystal nucleation and growth, living organisms produce single nanocrystals and nanocrystal composites that exhibit control over the location, phase and crystallographic orientation of the nuclei, as well [...]

DNA base damage: A Car-Parrinello Molecular Dynamics Study of Guanine and Thymine with an OH Radical

Wu Y., Mundy C.J., Colvin M.E., Car R., Lawrence Livermore National Labs, US

Understanding the basic chemistry of radicals and DNA bases is an important step in characterizing the potential damage to DNA. The chemical level understanding of such damage has far reaching implications for radiation therapy, health [...]

Electrohydrodynamic Interactions of an AFM Tip and a Biological Membrane

Fan T.H., Fedorov A.G., Georgia Institute of Technology, US

In biological applications, AFM imaging needs to be performed in the natural (aqueous) living environment of the cell in order to observe molecular level interactions and biochemical processes in-situ in the electrolyte solution and to [...]

Charge Islands Through Tunneling

Robinson D.C., NASA Glenn Research Center, US

It has been recently reported that the electrical charge in a semiconductive carbon nanotube is not evenly distributed, but rather it is divided into charge “islands” [1,2]. This paper links the aforementioned phenomenon to tunneling [...]

The Structures of Carbon Nanotubes in their Pristine and Oxidized Form: A quantum chemical model study

Irle S., Morokuma K., Emory University, US

The molecular and electronic structures of pristine and oxidized [n]cyclacenes (n=6,12) as building element of (n,0) carbon nanotubes have been theoretically investigated. Geometry optimizations have been performed at the B3LYP/6-31G density functional level of theory. [...]

Finite Size Scaling in Quantum Mechanics

Kais S., Purdue University, US

We present the finite size scaling method for studying the critical behavior of a quantum Hamiltonian H(l1,...,lk) as a function of a set of parameters {lk}. In this context, critical means the values of {lk} [...]

Analysis of Phonon Dispersion Relations from Atom Model to Continuum Theory

Chen Y., Lee J.D., The George Washington University, US

The phonon dispersion relations calculated by atomic model: shell model and ab initio, and by microcontinuum theory are introduced in this paper. It is found that both atomic models and microcontinuum theory can describe the [...]