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Frequency-dependent ultrasound-induced transformation in E. coli
- Publication Year :
- 2014
-
Abstract
- Ultrasound-enhanced gene transfer (UEGT) is continuing to gain interest across many disciplines; however, very few studies investigate UEGT efficiency across a range of frequencies. Using a variable frequency generator, UEGT was tested in E. coli at six ultrasonic frequencies. Results indicate frequency can significantly influence UEGT efficiency positively and negatively. A frequency of 61 kHz improved UEGT efficiency by ~70 % higher, but 99 kHz impeded UEGT to an extent worse than no ultrasound exposure. The other four frequencies (26, 133, 174, and 190 kHz) enhanced transformation compared to no ultrasound, but efficiencies did not vary. The influence of frequency on UEGT efficiency was observed across a range of operating frequencies. It is plausible that frequency-dependent dynamics of mechanical and chemical energies released during cavitational-bubble collapse (CBC) are responsible for observed UEGT efficiencies.
- Subjects :
- Signal generator
Materials science
business.industry
TK
Ultrasound
Analytical chemistry
Gene Transfer Techniques
Bioengineering
Gene transfer
Ultrasound exposure
General Medicine
Applied Microbiology and Biotechnology
High-Energy Shock Waves
QR
Transformation (function)
Transformation, Genetic
TA
Escherichia coli
Ultrasonic sensor
business
Biotechnology
Subjects
Details
- Language :
- English
- ISSN :
- 01415492
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....7777a23575a78bac962e89cae628177c