Bubble wrap - the popular packing material - can serve as an inexpensive alternative to full-size test tubes for medical and environmental samples, a new study has found.
George Whitesides from Harvard University and colleagues explain that although bubble wrap filled with biological samples, like blood or urine, or chemicals would have to be handled carefully, the material offers numerous advantages for those living in resource-limited areas.
The material is available almost everywhere around the world, is inexpensive, doesn't generate sharp edges when broken (like glass containers), is easily disposed of by burning and is flexible.
The interiors of the bubbles also are sterile, so there's no need for costly autoclaves that have to be plugged in - a huge plus for the nearly 2 billion people around the world who do not have regular access to electricity.
To show that their idea could work, the team injected liquids into the air-filled pockets of bubble wrap with syringes and sealed the holes with nail hardener.
They successfully ran anaemia and diabetes tests on the liquids. They also could grow microbes such as E coli in the blisters, which is important for detecting contamination in water samples.
"The bubbles of bubble wrap, therefore, can be used for storing samples and performing analytical assays, a function that has the potential to be especially beneficial in resource-limited regions, and in very cost-sensitive applications," researchers concluded.
The research appears in the American Chemical Society (ACS) journal Analytical Chemistry.
