Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Microfluidic pumping using artificial magnetic cilia   One of the vital functions of naturally occurring cilia is fluid transport.
Biological cilia use spatially asymmetric strokes to generate a net fluid flow
that can be utilized for feeding, swimming, and other functions. Biomimetic
synthetic cilia with similar asymmetric beating can be useful for fluid
manipulations in lab-on-chip devices. In this paper, we demonstrate the
microfluidic pumping by magnetically actuated synthetic cilia arranged in
multi-row arrays. We use a microchannel loop to visualize flow created by the
ciliary array and to examine pumping for a range of cilia and microchannel
parameters. We show that magnetic cilia can achieve flow rates of up to 11
{\mu}l/min with the pressure drop of~ 1 Pa. Such magnetic ciliary array can be
useful in microfluidic applications requiring rapid and controlled fluid
transport.

17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph