hydrogel tagged posts

A Band-Aid for the Heart? New 3D Printing Method makes this, and much more, possible

A new biomaterial adhered to a porcine heart
Laboratory tests show this 3D printed material molds and sticks to organs. Pictured is a porcine heart.

In the quest to develop life-like materials to replace and repair human body parts, scientists face a formidable challenge: Real tissues are often both strong and stretchable and vary in shape and size.

A CU Boulder-led team, in collaboration with researchers at the University of Pennsylvania, has taken a critical step toward cracking that code. They’ve developed a new way to 3D print material that is at once elastic enough to withstand a heart’s persistent beating, tough enough to endure the crushing load placed on joints, and easily shapable to fit a patient’s unique defects.

Better yet, it sticks easily to wet tissue.

Their breakthrough, described in the Aug...

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Plant-based Materials give ‘Life’ to Tiny Soft Robots

Soft robot in a maze

A team of University of Waterloo researchers has created smart, advanced materials that will be the building blocks for a future generation of soft medical microrobots.

These tiny robots have the potential to conduct medical procedures, such as biopsy, and cell and tissue transport, in a minimally invasive fashion. They can move through confined and flooded environments, like the human body, and deliver delicate and light cargo, such as cells or tissues, to a target position.

The tiny soft robots are a maximum of one centimetre long and are bio-compatible and non-toxic. The robots are made of advanced hydrogel composites that include sustainable cellulose nanoparticles derived from plants.

This research, led by Hamed Shahsavan, a professor in the Department of Chemical Engine...

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Hot Summer Air turns into Drinking Water with New Gel Device

Researchers have focused on the moisture present in the air as a potential source of drinking water for drought-stressed populations. They reached a significant breakthrough in their efforts to create drinkable water out of thin air: a molecularly engineered hydrogel that can create clean water using just the energy from sunlight.

For significant portions of the globe faced with water shortage problems, a beacon of hope may be on the way: the ability to easily turn hot air into drinking water.

For the past few years, researchers at The University of Texas at Austin have focused on the moisture present in the air as a potential source of drinking water for drought-stressed populations...

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Solar-Powered Gel Filters enough Clean Water to meet Daily Needs

Solar-powered gel filters enough clean water to meet daily needs
Researchers Néhémie Guillomaitre and Xiaohui Xu hold a sample of the solar absorber gel, which acts like a sponge to soak up clean water and filter out contaminants. Credit: Bumper DeJesus/Princeton University

Worldwide, over two billion people lack reliable access to clean water. And one potential solution for meeting that need works a lot like a sponge, soaking up clean water while leaving contaminants behind.

Researchers at Princeton University have developed the next generation of their solar absorber gel technology, a device that could be key to unlocking clean water access for people across the globe...

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