Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Template-Free Preparation of Thermoresponsive Mag-netic Cilia Compatible
  with Biological Conditions   Bio-inspired materials are commonly used in the development of functional
devices. The fabrication of artificial cilia mimicking the biological functions
has emerged as a promising strategy for fluid manipulation in miniaturized
systems. In this study, we propose a different physicochemical insight for the
preparation of magnetic cilia based on the temperature-triggered reversible
assembly of coated iron oxide nanoparticles in a bio-compatible template-free
approach. The length of the prepared cilia could be tuned between 10 and 100
microns reaching aspect ratios up to 100 in a very dense array of flexible
structures with persistence lengths around 8 microns. Magnetic actuation of the
cilia revealed robust structures (over several hours of actuation) with a wide
range of bending amplitudes resulting from high susceptibility of the
filaments. The results demonstrate that the proposed strategy is an efficient
and versatile alternative for templated fabrication methods and producing cilia
with remarkable characteristics and dimensions within the template-free
approaches.

36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph