By Topic

A Bod Biosensor Using Salt-Tolerant Bacillus licheniformis for Sea Water

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Cui Jiansheng ; Dept. Environ. Sci., Hebei Univ. of Sci. & Technol., Shijiazhuang, China ; Wang Xiaohui ; Wang Gaizhen ; Ma Li

The possibility of sensing seawater BOD (biochemical oxygen demand) by microbial sensors using tamed Bacillus licheniformis is test. Microbial biosensors of BOD are fabricated based on the Clark oxygen electrode and the biological sensing material is immobilized Bacillus licheniformis isolated from starch wastewater and tamed in saline water. Results show sensors has a linear response of 0 to 40 mg/L BOD and the linearity is perfect (r=0.999). The response-time is 8 minutes and the recovery time less than 10 minutes. The sensor shows stability within 60 days without any decrease in signal. The standard deviation of continuous measurements (n=7) is within 5%. Storage capacity of sensors is more than 4 months by present experiments. The sensor can gives stable signals in a range of pH from 6.5 to 10.5 and the best working temperature is 35degC. The salt concentration does not affect measure signals obviously until NaCl is 80 g/L in samples. Sensors show to be capable for monitoring low concentration BOD in seawater.

Published in:

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Date of Conference:

11-13 June 2009