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Home NEWS Science News Chemistry

Electrospinning promises major improvements in wearable technology

Bioengineer by Bioengineer
June 28, 2022
in Chemistry
Reading Time: 3 mins read
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Electrospun nanofibers for the development of wearables
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WASHINGTON, June 28, 2022 – Wearable technology has exploded in recent years. Spurred by advances in flexible sensors, transistors, energy storage, and harvesting devices, wearables encompass miniaturized electronic devices worn directly on the human skin for sensing a range of biophysical and biochemical signals or, as with smart watches, for providing convenient human-machine interfaces.

Electrospun nanofibers for the development of wearables

Credit: Electrospun nanofibers boast numerous advantages over conventional bulk materials for the development of wearables. CREDIT: Sameer Sonkusale

WASHINGTON, June 28, 2022 – Wearable technology has exploded in recent years. Spurred by advances in flexible sensors, transistors, energy storage, and harvesting devices, wearables encompass miniaturized electronic devices worn directly on the human skin for sensing a range of biophysical and biochemical signals or, as with smart watches, for providing convenient human-machine interfaces.

Engineering wearables for optimal skin conformity, breathability, and biocompatibility without compromising the tunability of their mechanical, electrical, and chemical properties is no small task. The emergence of electrospinning – the fabrication of nanofibers with tunable properties from a polymer base – is an exciting development in the field.

In APL Bioengineering, by AIP Publishing, researchers from Tufts University examined some of the latest advances in wearable electronic devices and systems being developed using electrospinning.

“We show how the scientific community has realized many remarkable things using electrospun nanomaterials,” said author Sameer Sonkusale. “They have applied them for physical activity monitoring, motion tracking, measuring biopotentials, chemical and biological sensing, and even batteries, transistors, and antennas, among others.”

Sonkusale and his colleagues showcase the many advantages electrospun materials have over conventional bulk materials.

Their high surface-to-volume ratio endows them with enhanced porosity and breathability, which is important for long-term wearability. Also, with the appropriate blend of polymers, they can achieve superior biocompatibility.

Conductive electrospun nanofibers provide high surface area electrodes, enabling both flexibility and performance improvements, including rapid charging and high energy storage capacities.

“Also, their nanoscale features mean they adhere well to the skin without need for chemical adhesives, which is important if you are interested in measuring biopotentials, like heart activity using electrocardiography or brain activity using electroencephalography,” said Sonkusale.

Electrospinning is considerably less expensive and more user-friendly than photolithography for realizing nanoscale transistor morphologies with superior electronic transport.

The researchers are confident electrospinning will further establish its claim as a versatile, feasible, and inexpensive technique for the fabrication of wearable devices in the coming years. They note there are areas for improvement to be considered, including broadening the choice for materials and improving the ease of integration with human physiology.

They suggest the aesthetics of wearables may be improved by making them smaller and, perhaps, with the incorporation of transparent materials, “almost invisible.”

###

The article “Recent progress in electrospun nanomaterials for wearables” is authored by Riddha Das, Wenxin Zeng, Cihan Asci, Ruben Del-Rio-Ruiz, and Sameer Sonkusale. The article will appear in APL Bioengineering (DOI: 10.1063/5.0088136) on June 28, 2022. After that date, it can be accessed at http://aip.scitation.org/doi/full/10.1063/5.0088136.

ABOUT THE JOURNAL

APL Bioengineering is an open access journal publishing significant discoveries specific to the understanding and advancement of physics and engineering of biological systems. See http://aip.scitation.org/journal/apb.

###



Journal

APL Bioengineering

DOI

10.1063/5.0088136

Article Title

Recent progress in electrospun nanomaterials for wearables

Article Publication Date

28-Jun-2022

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