We investigate the adsorption of the nucleic acid bases-adenine (A), guanine (G), cytosine (C), thymine (T) and uracil (U)-on the outer wall of a high curvature semiconducting single-walled boron nitride nanotube (BNNT) by first-principles density functional theory calculations. The calculated binding energy shows the order: G > A approximately C approximately T approximately U, implying that the interaction strength of the high curvature BNNT with the nucleobases, G being an exception, is nearly the same. A higher binding energy for the G-BNNT conjugate appears to result from hybridization of the molecular orbitals of G and the BNNT. A smaller energy gap predicted for the G-BNNT conjugate relative to that of the pristine BNNT may be useful in the application of this class of biofunctional materials to the design of next-generation sensing devices.
We describe the so-called low magnetic field
Magnetars, SGR 0418+5729, Swift J1822.3--1606, as well as the AXP prototype 1E
2259+586 as massive fast rotating highly magnetized white dwarfs. We give
Bounds for the mass, radius, moment of inertia, and magnetic field for these
Sources by requesting the...
We investigate the exclusive photoproduction of J/psi and the
Radially excited psi(2S) state off nucleon in proton-proton collisions. The
Theoretical framework considered in the analysis is the light-cone dipole
Formalism and predictions are done for proton-proton collisions at the CERN-LHC
We solve analytically an axially symmetric 3D structure for the model,
With magnetic field strength, plasma density, pressure and temperature all
Consistent with observational and theoretical estimates. The self similar
Construction ensures the magnetic field is divergence free. The equation of
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