Wannapong TriampoGalayanee DoungchaweeDarapond TriampoJirasak Wong-EkkabutI. Ming TangMahidol University2018-07-242018-07-242004-01-01Journal of Bioscience and Bioengineering. Vol.98, No.3 (2004), 182-186138917232-s2.0-6944223847https://repository.li.mahidol.ac.th/handle/20.500.14594/21235The effects of the exposure of the bacterium, Leptospira interrogans serovar canicola to a constant magnetic field with magnetic flux density from a permanent ferrite magnet=140±5 mT were studied. Changes in Leptospira cells after their exposure to the field were determined on the basis of changes in their growth behavior and agglutination immunoreactivity with a homologous antiserum using dark-field microscopy together with visual imaging. The data showed that the exposed Leptospira cells have lower densities and lower agglutination immunoreactivity than the unexposed control group. Interestingly, some of the exposed Leptospira cells showed abnormal morphologies such as large lengths. We discussed some of the possible reasons for these observations.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyChemical EngineeringImmunology and MicrobiologyArticleSCOPUS10.1016/S1389-1723(04)00263-4