Study of antibacterial effect of nanosilver particle by tapered optical fiber sensor

Z. Saeedian; M. I. Zibaii; S. M. Hosseini; H. Latifi

doi:10.1117/12.965305

17 October 2012 Study of antibacterial effect of nanosilver particle by tapered optical fiber sensor

Z. Saeedian, M. I. Zibaii, S. M. Hosseini, H. Latifi

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84215K (2012) https://doi.org/10.1117/12.965305
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A single-mode nanoadiabatic tapered optical fiber biosensor was utilized for real-time monitoring of the antimicrobial activity of silver nanoparticles (Ag-NPs) against E. coli. For measuring growth-inhibitory effects, the bacteria were immobilized on the tapered surface. Then, fiber sensor surrounded in glucose growth medium conation different concentration Ag-NP. At the same condition, the growth inhibition of E. coli was measured by colony counting method as a controlling experiment. Interacting Ag-NPs with cells, by anchoring to and penetrating the bacterial cell, the refractive index of the tapered region can be changed that leads to changes in the optical characteristics of the taper.

Citation Download Citation

Z. Saeedian, M. I. Zibaii, S. M. Hosseini, and H. Latifi "Study of antibacterial effect of nanosilver particle by tapered optical fiber sensor", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84215K (17 October 2012); https://doi.org/10.1117/12.965305

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