Premium
The effect of nickel(II) ions on the growth and bioaccumulation properties of Escherichia coli
Author(s) -
Wu Laiyan,
Yu Junxia,
Sun Xiaomei,
Li Buhai
Publication year - 2009
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.10325
Subject(s) - nickel , bioaccumulation , x ray photoelectron spectroscopy , chemistry , transmission electron microscopy , escherichia coli , phosphorus , nuclear chemistry , ion , nitrogen , sulfur , fourier transform infrared spectroscopy , analytical chemistry (journal) , environmental chemistry , materials science , chemical engineering , nanotechnology , biochemistry , organic chemistry , engineering , gene
The influence of nickel(II) ions concentration on the growth and nickel(II) bioaccumulation properties of Escherichia coli (cultivated in the LB medium) was studied. When the investigated initial concentration of nickel(II) was in the range of 20–300 mg L −1 , it was found that the growth of E. coli was delayed obviously with the increasing nickel(II) ion concentration, while the accumulation capacity increased until the maximum was obtained. FTIR spectrum showed that the peak near 3300 cm −1 shifted remarkably, and simultaneously, the peaks at 1660 cm −1 strengthened according to the nickel(II) concentration. As shown by the X‐ray photoelectron spectroscopy analysis, the nitrogen, sulphur, and phosphorus contents of the cultivated cell were reduced, while the content of oxygen was increased. The biologic characteristics of the microorganism did not change as shown in the transmission electron microscope images. © 2008 American Institute of Chemical Engineers Environ Prog, 2009