Decontamination Methods for Reusing Laboratory Pipette Tips
Author Information
Author(s): Lee Sang Hyuk, Kastor William, Fu Xiao, Soni Vikas, Keidar Michael, Donohue Marc, Wood Steve, Karunasena Enusha
Primary Institution: Johns Hopkins University
Hypothesis
Can effective decontamination methods be developed for laboratory pipette tips to allow for their reuse during the SARS-CoV-2 pandemic?
Conclusion
The study found that ozone vapor and cold atmospheric plasma can effectively decontaminate pipette tips, but lab detergents may leave excessive residue that affects reuse.
Supporting Evidence
- Lab detergents showed the highest log reduction of genetic material but left excessive residue.
- Ozone vapor at 14400 PPM * minute achieved a high turnover ratio and log reduction.
- Cold atmospheric plasma showed potential but requires optimization for better efficacy.
Takeaway
This study tested different ways to clean pipette tips so they can be used again safely, finding that some methods work better than others.
Methodology
The study tested decontamination methods including lab detergents, ozone vapor, and cold atmospheric plasma on pipette tips contaminated with DNA from Aeromonas hydrophila, measuring the effectiveness through qPCR.
Potential Biases
Potential bias in the selection of decontamination methods and conditions without thorough preliminary studies.
Limitations
The study did not optimize exposure times for cold atmospheric plasma, which may affect its efficacy.
Statistical Information
P-Value
0.05
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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