Quartz Tuning Fork as in-situ sensor of bacterial biofilm

被引：6

作者：

Piasecki, Tomasz ^{[1
]}

Gula, Grzegorz ^{[2
]}

Waszczuk, Karol ^{[1
]}

Drulis-Kawa, Zuzanna ^{[2
]}

Gotszalk, Teodor ^{[1
]}

机构：

[1] Wroclaw Univ Technol, Fac Microsyst Elect & Photon, Z Janiszewskiego 11-17, PL-50372 Wroclaw, Poland

[2] Univ Wroclaw, Inst Genet & Microbiol, PL-51148 Wroclaw, Poland

来源：

28TH EUROPEAN CONFERENCE ON SOLID-STATE TRANSDUCERS (EUROSENSORS 2014) | 2014年 / 87卷

关键词：

Pseudomonas aeruginosa; biofilm; quartz tuning fork; ringdown; resonant frequency; viscosity; density;

D O I：

10.1016/j.proeng.2014.11.740

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Piezoelectric Quartz Tuning Forks (QTFs) were used as a biofilm formation sensors. Modulated excitation technique allowed to measure the current generated by the QTF during the ringdown of the oscillations at conductive environments such as a liquid culture growth medium. New algorithm of the digital analysis of the ring-down signal was elaborated and used to determine the decay time constant of the vibrations and the damped vibration frequency. The dependence of these parameters on the time for QTF placed in liquid growth medium contained four strains of Pseudomonas aeruginosa was measured. It allowed to detect the biofilm formation at the QTF after few hours of incubation for all used strains (2 hours for PA01 strain). (C) 2014 The Authors. Published by Elsevier Ltd.

引用

页码：369 / 372

页数：4

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