In Vitro Studies on a Microfluidic Sensor with Embedded Obstacles Using New Antibacterial Synthetic Compounds (1-TDPPO) Mixed Prop-2-en-1-one with Difluoro Phenyl

• Published in: Sensors (Basel, Switzerland) Vol. 17; no. 4; p. 803
• Main Authors: Roh, Changhyun, Lee, Jaewoong, Kinger, Mayank, Kang, Chankyu
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 08-04-2017; MDPI
• Subjects: 1-TDPPO; Anti-Bacterial Agents; Antibacterial materials; Antimicrobial agents; Biofilms; confocal laser scanning microscope; Fluorescence; fluorescence intensity; Microfluidics; Microscopy, Confocal; Organic chemistry; PDMS microfluidic sensor; Polydimethylsiloxane; Pseudomonas aeruginosa; Pseudomonas aeruginosa PAO1; Response time; Sensors; Silicone resins; 1-TDPPO; confocal laser scanning microscope; PDMS microfluidic sensor; Pseudomonas aeruginosa PAO1; fluorescence intensity
• ISSN: 1424-8220; 1424-8220
• DOI: 10.3390/s17040803

This paper describes the use of an analytical microfluidic sensor for accelerating chemo-repellent response and strong anti-bacterial 1-(Thien-2-yl)-3-(2, 6-difluoro phenyl) prop-2-en-1-one (1-TDPPO). The chemically-synthesized antimicrobial agent, which included prop-2-en-1-one and difluoro phenyl groups, was moving through an optically transparent polydimethylsiloxane (PDMS) microfluidic sensor with circular obstacles arranged evenly. The response, growth and distribution of fluorescent labeling
PAO1 against the antimicrobial agent were monitored by confocal laser scanning microscope (CLSM). The microfluidic sensor along with 1-TDPPOin this study exhibits the following advantages: (i) Real-time chemo-repellent responses of cell dynamics; (ii) Rapid eradication of biofilm by embedded obstacles and powerful antibacterial agents, which significantly reduce the response time compared to classical methods; (iii) Minimal consumption of cells and antimicrobial agents; and (iv) Simplifying the process of the normalization of the fluorescence intensity and monitoring of biofilm by captured images and datasets.