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Archive for the ‘3D printing’ category: Page 9

Dec 11, 2023

Scientists 3D print self-heating microfluidic devices

Posted by in categories: 3D printing, biotech/medical, chemistry

MIT researchers have used 3D printing to produce self-heating microfluidic devices, demonstrating a technique which could someday be used to rapidly create cheap, yet accurate, tools to detect a host of diseases.

Microfluidics, miniaturized machines that manipulate fluids and facilitate , can be used to detect disease in tiny samples of blood or fluids. At-home test kits for COVID-19, for example, incorporate a simple type of microfluidic.

But many microfluidic applications require chemical reactions that must be performed at specific temperatures. These more complex , which are typically manufactured in a , are outfitted with heating elements made from gold or platinum using a complicated and expensive fabrication process that is difficult to scale up.

Dec 10, 2023

Now print structures deep in your tissues with this new acoustic technique

Posted by in categories: 3D printing, biotech/medical

Researchers develop DVAP, a groundbreaking 3D printing technique using sono-ink and ultrasound waves for deep-tissue biomedical applications.

Dec 9, 2023

A new (micro) lens on optics: Researchers develop hybrid achromats with high focusing efficiencies

Posted by in category: 3D printing

Using 3D printing and porous silicon, researchers at the University of Illinois Urbana-Champaign have developed compact, visible wavelength achromats that are essential for miniaturized and lightweight optics. These high-performance hybrid micro-optics achieve high focusing efficiencies, while minimizing volume and thickness. Further, these microlenses can be constructed into arrays to form larger area images for achromatic light-field imagers and displays.

This study was led by and engineering professors Paul Braun and David Cahill, electrical and computer engineering professor Lynford Goddard and former graduate student Corey Richards. The results of this research were published in Nature Communications.

“We developed a way to create structures exhibiting the functionalities of classical compound optics but in highly miniaturized thin from, via non-traditional fabrication approaches,” says Braun.

Dec 5, 2023

Laser additive manufacturing: Listening for defects as they happen

Posted by in categories: 3D printing, information science, robotics/AI

Researchers from EPFL have resolved a long-standing debate surrounding laser additive manufacturing processes with a pioneering approach to defect detection.

The progression of laser additive —which involves 3D printing of metallic objects using powders and lasers—has often been hindered by unexpected defects. Traditional monitoring methods, such as and machine learning algorithms, have shown significant limitations. They often either overlook defects or misinterpret them, making precision manufacturing elusive and barring the technique from essential industries like aeronautics and automotive manufacturing.

But what if it were possible to detect defects in real-time based on the differences in the sound the printer makes during a flawless print and one with irregularities? Up until now, the prospect of detecting these defects this way was deemed unreliable. However, researchers at the Laboratory of Thermomechanical Metallurgy (LMTM) at EPFL’s School of Engineering have successfully challenged this assumption.

Dec 4, 2023

Bio Ink Made out of Bacteria Could Be Used to 3D Print Organs

Posted by in categories: 3D printing, bioengineering, biotech/medical, bitcoin, cryptocurrencies

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Hello and welcome! My name is Anton I’m away for a few days due to voice issues, so enjoy this older video where we talk about the incredible invention of 3D printed bio ink that could be used to print any biological tissue (in theory). 3D printed heart anyone?

Continue reading “Bio Ink Made out of Bacteria Could Be Used to 3D Print Organs” »

Nov 28, 2023

Researchers engineer a material that can perform different tasks depending on temperature

Posted by in categories: 3D printing, information science, robotics/AI

Researchers report that they have developed a new composite material designed to change behaviors depending on temperature in order to perform specific tasks. These materials are poised to be part of the next generation of autonomous robotics that will interact with the environment.

The new study conducted by University of Illinois Urbana-Champaign civil and environmental engineering professor Shelly Zhang and graduate student Weichen Li, in collaboration with professor Tian Chen and graduate student Yue Wang from the University of Houston, uses , two distinct polymers, and 3D printing to reverse engineer a material that expands and contracts in response to change with or without .

Continue reading “Researchers engineer a material that can perform different tasks depending on temperature” »

Nov 27, 2023

Scientists 3D Print a Complex Robotic Hand With Bones, Tendons, and Ligaments

Posted by in categories: 3D printing, robotics/AI

The approach uses machine vision to 3D print structures with multiple materials, from hard, bone-like substances to stuff that’s more like soft tissues.

Nov 26, 2023

Scientists 3D-Print Hair Follicles in Lab-Grown Skin

Posted by in categories: 3D printing, bioprinting, biotech/medical, chemistry, engineering, life extension

The technique represents an important step in engineering skin grafts, drug testing. A team led by scientists at Rensselaer Polytechnic Institute has 3D-printed hair follicles in human skin tissue cultured in the lab. This marks the first time researchers have used the technology to generate hair follicles, which play an important role in skin healing and function.

The finding, published in the journal Science Advances, has potential applications in regenerative medicine and drug testing, though engineering skin grafts that grow hair are still several years away.

“Our work is a proof-of-concept that hair follicle structures can be created in a highly precise, reproducible way using 3D-bioprinting. This kind of automated process is needed to make future biomanufacturing of skin possible,” said Pankaj Karande, Ph.D., an associate professor of chemical and biological engineering and a member of Rensselaer’s Shirley Ann Jackson, Ph.D. Center for Biotechnology and Interdisciplinary Studies, who led the study.

Nov 20, 2023

This 3D printer can watch itself fabricate objects

Posted by in categories: 3D printing, biotech/medical, robotics/AI

With 3D inkjet printing systems, engineers can fabricate hybrid structures that have soft and rigid components, like robotic grippers that are strong enough to grasp heavy objects but soft enough to interact safely with humans.

These multimaterial 3D printing systems utilize thousands of nozzles to deposit tiny droplets of resin, which are smoothed with a scraper or roller and cured with UV light. But the smoothing process could squish or smear resins that cure slowly, limiting the types of materials that can be used.

Researchers from MIT, the MIT spinout Inkbit, and ETH Zurich have developed a new 3D inkjet printing system that works with a much wider range of materials. Their printer utilizes computer vision to automatically scan the 3D printing surface and adjust the amount of resin each nozzle deposits in real time to ensure no areas have too much or too little material.

Nov 16, 2023

Robot Hand With Working Tendons Printed in One Go

Posted by in categories: 3D printing, robotics/AI

Multimaterial 3D-printing approach produces functional devices in a single shot.

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