A new alginate-based powder may solve that problem. The material, which solidifies menstrual blood by turning it into a gel mixture, could reduce leakage in period products without compromising ...

“The alginate powder alone, when blood is added, doesn’t absorb the blood very well,” says Hsu. “It has kind of like an unstirred-cocoa-powder-in-milk consistency with a dry core.

In these tests, the alginate powder consistently reduced the amount of spillage that occurred when the cup was removed from a synthetic vagina. "Even if you invert the cup, the blood doesn't flow ...

Place ¼ teaspoon sodium alginate powder in a plastic bottle. An empty disposable 8-oz plastic water bottle with a tight-fitting cap will work well. Carefully add 50 mL water to the bottle containing ...

The researchers wrapped the alginate powder in a sheet of gauze, to mimic a pad, and taped it to a silicone model of a vagina. They then fed 8 millilitres of blood through the model onto the ...

Sodium alginate is made from brown seaweed The harvested seaweed is: Cut and mixed with water to make a thick gel. Diluted with more water and filtered. Mixture evaporated and further processed to ...