TITLE:
Charge Transport in Bifidobacterium animalis subsp.lactis BB-12 under Various Atmospheres
AUTHORS:
K. Bozkurt, C. Denktas, O. Ozdemir, A. Altındal, Z. Avdan, H. S. Bozkurt
KEYWORDS:
Bifidobacterium animalis subsp.lactis BB-12, Charge Transport, FTIR, Zeta Potential
JOURNAL NAME:
Open Journal of Applied Sciences,
Vol.9 No.6,
June
30,
2019
ABSTRACT: The
influence of relative humidity (RH) on quasistatic current-voltage (I-V)
characteristics of Bifidobacterium animalis subsp. lactis BB-12 thin layers was studied for the first time. The value of
electrical conductivity in 75% RH was found to be in the order of 10-7 (ohm·cm)-1, which was 106 orders of magnitude higher
than that observed in dry atmosphere. It
was concluded that RH played a key role in hysteresis behavior of the measured (I-V) characteristics. FTIR measurements
showed that under water moisture
environment, the associated bonds between amine and carboxyl group were greatly
strengthened that was the source of free charge carries after ionization. The
surface charge of Bifidobacterium animalis subsp. lactis BB-12 was found to be negative by
zeta potential measurements, claiming that electrons were the charge carriers.