Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stochastic unfolding of nanoconfined DNA: experiments, model and
  Bayesian analysis   Nanochannels provide means for detailed experiments on the effect of
confinement on biomacromolecules, such as DNA. We here introduce a model for
the complete unfolding of DNA from the circular to linear configuration. Two
main ingredients are the entropic unfolding force as well as the friction
coefficient for the unfolding process, and we describe the associated dynamics
by a non-linear Langevin equation. By analyzing experimental data where DNA
molecules are photo-cut and unfolded inside a nanochannel, our model allows us
to extract values for the unfolding force as well as the friction coefficient
for the first time. In order to extract numerical values for these physical
quantities, we employ a recently introduced Bayesian inference framework. We
find that the determined unfolding force is in agreement with estimates from a
simple Flory type argument. The estimated friction coefficient is in agreement
with theoretical estimates for motion of a cylinder in a channel. We further
validate the estimated friction constant by extracting this parameter from
DNA's center-of-mass motion before and after unfolding, yielding decent
agreement.

14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
10
The categories of this paper are: q-bio