However, most patients cannot tolerate large amounts of the drug because it can cause heart failure, among other side effects.
The researchers wondered if they could make a device that would filter out doxorubicin from blood at locations outside of the tumour to reduce the likelihood that the drug would harm healthy cells.
They used a 3D printer to fabricate tiny cylinders made of poly(ethylene glycol) diacrylate.
Inside the cylinders was a square lattice structure that would allow blood cells to pass through it, with a copolymer coating that binds to doxorubicin.
The researchers tested these absorbers in pigs, inserting them into a vein.
When they injected doxorubicin into the same vein, the drug flowed in the bloodstream to the device.
By measuring the doxorubicin concentration in the vein at a location after the absorber, the researchers determined that it captured about 64 per cent of the drug from the bloodstream.
The device could open a new route to help patients fight cancer, enabling reduced side effects or an increased chemotherapy dose, the researchers said.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)