Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Delivery of Liquid Metal to the Target Vessels as Vascular Embolic Agent
  to Starve Diseased Tissues or Tumors to Death   Tumor growth relies heavily on the continuous blood and nutrients supply.
Theoretically, it is an ideal therapeutic way of killing tumor by only vascular
embolization. However, most of the existing vascular embolic agents are still
rather insufficient to fulfill the real clinical need due to the reasons like:
incomplete filling of target vasculature, being easily washed away by blood or
body solution, or just producing toxicity to tissues. Here from an alternative
way, the body temperature liquid metal, a kind of soft and highly compliant
material, was proposed for the first time as blood vessel embolization agent
for tumor physical therapy. With its unique capability of easy phase transition
between liquid and solid state and sub-cooling behavior, such material can be
fluently injected into the tiny vessels including ending capillaries and fully
block them. The in vitro cytotoxicity experiments were performed which showed
that treating localized diseased tissues through liquid metal embolic agent is
acceptable. Endowed with a high density, the liquid metal-filled vessels are
highly visible under the CT scan, which offers the potential of
diagnosis-treatment integration. To further demonstrate the new conceptual
liquid metal vascular embolization therapy, several experiments on in vivo
vasculatures of rabbit ears and mouse tails were performed to provide evidences
of destroying the targeted tissues. To interpret the liquid metal starvation
therapy effects, a theoretical model was established to simulate the tumor
growth with zero, partial or complete filling of the metal agent inside the
vessels. All the results support that, given appropriate administration, the
liquid metal embolization is able to destruct the target regions and might
starve the tumors to death through a relatively easy way. This study lays the
foundation of a promising tumor starvation therapy in the coming time.

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The categories of this paper are: astro-ph
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The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
33
The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: cond-mat
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The categories of this paper are: chao-dyn
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The categories of this paper are: math
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The categories of this paper are: bayes-an
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The categories of this paper are: q-bio
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The categories of this paper are: comp-gas