Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multimodal CARS and SHG microscopy for label-free detection of collagen
  produced by hDFs in fibrin gel   Label-free combined CARS and SHG microscopy techniques are used as powerful
tool to follow the cells behavior in cell-scaffold construct for regeneration
of tissues. Imaging of histological section of hDFs seeded in fibrin gel
scaffold and imaging of collagen produced by hDFs in a time course experiment
at different culture days (0, 7, 21, 42) is performed. A study on the limit of
collagen detection of the imaging system is reported using sample prepared with
different collagen concentrations. The results show that also the small amount
of collagen produced by hDFs after few hours of incubation in fibrin gel is
detected. Co-localization of hDFs and collagen is also reported in function of
the culture days.

19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int