Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Self-assembled guanine ribbons as wide-bandgap semiconductors   We present a first principle study about the stability and the electronic
properties of a new biomolecular solid-state material, obtained by the
self-assembling of guanine (G) molecules. We consider hydrogen-bonded planar
ribbons in isolated and stacked configurations. These aggregates present
electronic properties similar to inorganic wide-bandgap semiconductors. The
formation of Bloch-type orbitals is observed along the stacking direction,
while it is negligible in the ribbon plane. Global band-like conduction may be
affected by a dipole-field which spontaneously arises along the ribbon axis.
Our results indicate that G-ribbon assemblies are promising materials for
biomolecular nanodevices, consistently with recent experimental results.

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The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex
10
The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: plasm-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th