biomedical engineering tagged posts

Creating 3D Objects with Sound

Creating 3D objects with sound
The use of sound waves to create a pressure field to print particles. Credit: Kai Melde, MPI für medizinische Forschung

Scientists from the Micro, Nano and Molecular Systems Lab at the Max Planck Institute for Medical Research and the Institute for Molecular Systems Engineering and Advanced Materials at Heidelberg University have created a new technology to assemble matter in 3D. Their concept uses multiple acoustic holograms to generate pressure fields with which solid particles, gel beads and even biological cells can be printed.

These results pave the way for novel 3D cell culture techniques with applications in biomedical engineering. The results of the study were published in the journal Science Advances.

Additive manufacturing or 3D printing enables the fabrication of comp...

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Engineers develop process to 3D print cells to produce Human Tissue such as Ligaments and Tendons

This image of cells that were made fluorescent shows how they are printed in complex structures for the purpose of producing tissue such as tendons and ligaments. Credit: Robby Bowles/University of Utah College of Engineering

This image of cells that were made fluorescent shows how they are printed in complex structures for the purpose of producing tissue such as tendons and ligaments.
Credit: Robby Bowles/University of Utah College of Engineering

Scientists have developed a method to 3D print cells to produce human tissue such as ligaments and tendons to greatly improve a patient’s recovery. A person with a badly damaged ligament, tendon, or ruptured disc could simply have new replacement tissue printed and ultimately implanted in the damaged area.

“It will allow patients to receive replacement tissues without additional surgeries and without having to harvest tissue from other sites, which has its own source of problems,” says University of Utah biomedical engineering assistant professor Robby Bowles, who co-a...

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3D-Printed Smart Gel that Walks Underwater, Moves Objects

A human-like 3D-printed smart gel walks underwater. Credit: Daehoon Han/Rutgers University-New Brunswick

A human-like 3D-printed smart gel walks underwater. Credit: Daehoon Han/Rutgers University-New Brunswick

New technology has biomedical, soft robot and other applications. Engineers have created a 3D-printed smart gel that walks underwater and grabs objects and moves them. The watery creation could lead to soft robots that mimic sea animals like the octopus, which can walk underwater and bump into things without damaging them. It may also lead to artificial heart, stomach and other muscles, along with devices for diagnosing diseases, detecting and delivering drugs and performing underwater inspections.

Soft materials like the smart gel are flexible, often cheaper to manufacture than hard materials and can be miniaturized...

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