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Development of a bench-top extra-cleanroom for DNA amplification
Hirokazu Takahashi1,2,3, Takahiro Satoh4, Hiroko Kanahara3
1Graduate School of Advanced Sciences of Matter, Hiroshima University, Hiroshima, Japan.
Biotechniques
|July 13, 2016
Summary
Conventional laminar-airflow cabinets are insufficient for preventing nanoparticle contamination. This study introduces a novel bench-top extra-cleanroom (ISO-1) using nanofibrous filters and an ionizer to prevent airborne DNA contamination in biotechnology labs.
Area of Science:
- Biotechnology
- Environmental Science
- Nanotechnology
Background:
- Airborne contamination poses a significant challenge in biotechnology.
- Conventional laminar-airflow cabinets (LAF-cabinets) are inadequate for controlling nano-sized airborne contaminants.
- Preventing nanoparticle contamination is crucial for sensitive laboratory procedures.
Purpose of the Study:
- To develop and present a novel bench-top extra-cleanroom system.
- To achieve ISO-1 cleanroom classification for superior contamination control.
- To mitigate airborne nanoparticle contamination, including DNA, in laboratory settings.
Main Methods:
- Development of a clean-zone-creating system utilizing nanofibrous, nonwoven filters.
- Integration of an ionizer to counteract electrostatic dust attraction on plasticware.
- Classification of the system to ISO-1 standards.
Main Results:
- The bench-top extra-cleanroom effectively prevents contamination from airborne nanoparticles.
- The combination of nanofibrous filters and an ionizer significantly reduces airborne contaminants.
- Demonstrated prevention of DNA contamination derived from airborne nanoparticles.
Conclusions:
- The novel bench-top extra-cleanroom achieves ISO-1 classification, offering enhanced protection against airborne nanoparticles.
- This system provides a viable solution for preventing DNA contamination in biotechnology.
- The extra-cleanroom with ionizer is beneficial for various biotechnology applications sensitive to airborne contaminants.

