Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Guided droplet transport on synthetic slippery surfaces inspired by a
  pitcher plant   We show how anisotropic, grooved features facilitate the trapping and
directed transport of droplets on lubricated, liquid-shedding surfaces.
Capillary action pins droplets to topographic surface features, enabling
transport along the feature while inhibiting motion across (or detachment from)
the feature. We demonstrate the robustness of this capillary-based mechanism
for directed droplet transport on slippery surfaces by combining experiments on
synthetic, lubricant-infused surfaces with observations on the natural trapping
surface of a carnivorous pitcher plant. Controlling liquid navigation on
synthetic surfaces promises to unlock significant potential in droplet-based
technologies. Our observations also offer novel insight into the evolution of
the Nepenthes pitcher plant, indicating that the `pitfall' trapping mechanism
is enhanced by the lubricant-infused, macroscopic grooves on the slippery
peristome surface, which guide prey into the trap in a way that is more tightly
controlled than previously considered.

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The categories of this paper are: physics
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The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-th
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The categories of this paper are: math
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The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th