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3D-printed glucose biosensor developed

Press Trust of India  |  Washington 

Scientists have developed a 3D-printed biosensor for use in wearable monitors.

The advance could lead to improved monitors for millions of people who suffer from diabetes, said researchers from the in the US.

People with most commonly monitor their with meters that require constant finger pricking.

are an alternative, but they are not cost effective, according to the research published in the journal Analytica Chimica Acta.

Researchers have been working to develop wearable, flexible that can conform to patients' skin and monitor the glucose in body fluids, such as in sweat.

To build such sensors, manufacturers have used traditional strategies, such as or

While these methods work, they have several drawbacks, including requiring the use of and expensive They also create a lot of waste.

Using 3D printing, the team developed a glucose monitor with much better stability and sensitivity than those manufactured through traditional methods.

The researchers used a method called direct-ink-writing (DIW), that involves "inks" out of nozzles to create intricate and precise designs at tiny scales.

They printed out a nanoscale material that is electrically conductive to create flexible electrodes.

The technique allows a precise application of the material, resulting in a uniform surface and fewer defects, which increases the sensor's sensitivity.

The researchers found that their 3D-printed sensors did better at picking up glucose signals than the traditionally produced electrodes.

Since it uses 3D printing, the system is also more customisable for the variety of people's biology, researchers said.

"can enable of tailored specifically to individual patients" said from the

Since the printing uses only the amount of material needed, there is also less waste in the process than traditional methods.

"This can potentially bring down the cost," said Gozen.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Fri, December 07 2018. 15:05 IST