Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of Copper Chemical Form on The Growth of Pseudomonas aeruginosa
  Isolated from Burned Patients and on Its Cu Uptake   The main object of this investigation was to shed light on the information on
the level of Cu uptake by Pseudomonas aeruginosa that has been previously
isolated from patients using Gram-negative E. aerogenes ans a Gram-positive
Bacillus thuringiensis as a control for Cu uptake measurements. Cu uptake data
showed that maximum Cu uptake was obtained by the Pseudomonas aeruginosa. The
metal uptake was dependent on the type of biosorbent with different
accumulation affinities toward the tested chemical form of the copper. Cells
harvested at exponential growth phase showed slightly higher Cu uptake than at
stationary phase, which reflect that the Cu uptake is metabolism
dependent-process. The increasing order of affinity of the cupric chloride and
cupric sulphate towards the three genera were almost constant. However, where
cupric nitrate was used, the copper uptake behavior in Pseudomonas aeroginosa
was not changed from those results with the other two chemical forms, whereas
with E. aerogenes & B. thuringiensis, different Cu uptake behaviors were
observed. In B. thuengenesis, the copper uptake rate as a function of initial
Cu concentration were shown to increase with increasing the initial
concentration of Cu, constantly above 320 ppm as compared with others. In
Enterobacter with cupric nitrate, different bahavior was also shown in which
the copper uptake decline sharply beyond the 320 ppm. These results reflect
that the Cu uptake in P. aeruginosa is with different mechanisms as compared
with other tested bacteria.

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The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
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The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
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The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
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The categories of this paper are: patt-sol
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The categories of this paper are: q-alg
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The categories of this paper are: cs
37
The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: funct-an
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The categories of this paper are: stat
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The categories of this paper are: math-ph