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Category: 3D printing

When “Artificial Neurons” Can Talk Directly to the “Brain”

*** This content was analyzed and written by AI for informational purposes only.
*** Please consult a specialist for professional advice.

The world is entering an era where “technology” and “living organisms” merge into one. Most recently, in 2026, a research team from Northwestern University created a landmark breakthrough by developing “Printed Neurons.” These are not designed just to mimic biology—they can actually “transmit signals” to communicate with living brain cells!

Why is this a big deal?
Typically, the silicon-based computers we use today operate entirely differently from the human brain. Computers consume massive amounts of power and are rigid. In contrast, our brains use only about 20 watts (less than some lightbulbs) and are incredibly flexible.
Creating artificial neurons that “speak the same language as the brain” is the key to treating diseases that were once considered incurable.

Innovations in “Electronic Ink” and “3D Printing“
At the heart of this research lies a leap forward in materials science and engineering:
• Nanomaterials (MoS₂ and Graphene): Researchers used these materials to create a specialized “ink” for printing neural networks. These materials are unique for being both flexible and excellent conductors of electricity.
• Aerosol Jet Printing: This technology allows for nano-level precision printing on flexible plastic sheets, designed to contour perfectly to human tissue.
• Biomimicry: These artificial cells can generate electrical signals called “Spikes,” matching the rhythm and speed of actual biological neurons.

Proven! Successful Communication with a “Mouse Brain“
The research team tested the connection between these printed neurons and mouse brain tissue. The results showed that the mouse brain cells could receive and respond to signals from the artificial device as if they were from their own kind. This is vital evidence that humans can create devices that interface seamlessly with the nervous system.

Scientists 3D-printed bendable soft sensors into every brain fold, opening a new path for personalized neurology

A new study has found that soft 3D-printed brain sensors can follow individual brain folds more closely than standard rigid devices.

The closer fit preserved stronger electrical readings in rats while leaving nearby brain tissue largely undisturbed in early tests.

Explosive evaporation unlocks new possibilities in 3D printing and chemical analysis

Water droplets might seem simple at first. But when nearing evaporation, a desperate power struggle of competing physical forces can emerge, with explosive effects. In a Proceedings of the National Academy of Sciences publication, researchers have taken a closer look at the physics of charged water droplets on frictionless surfaces, observing spontaneous jets of microdroplet emissions. Their insights may open new opportunities in nanoscale fabrication and electrospray ionization.

Professor Dan Daniel, head of the Droplet and Soft Matter Unit at the Okinawa Institute of Science and Technology (OIST) says, “From raindrops to spray coatings, mass spectrometry to microfluidics, sneezes to spacecraft plumes, charged droplets can show up in a surprising wealth of settings. Our observations enable new physical understanding of evaporating charged droplets, with a range of potential industrial applications.”

How tiny voids could make fusion targets more stable under powerful shockwaves

Picture two materials sandwiched together. The boundary between them may appear flat, but, in reality, it is full of tiny bumps and dents. Suddenly, the materials are hit with a shockwave. If that wave hits a bump in the material interface, it slows down. If it hits a dent, it accelerates forward. This imbalance creates fast, narrow jets of material—called the Richtmyer-Meshkov (RM) instability.

In a recent paper, published in Physical Review Letters, researchers from Lawrence Livermore National Laboratory (LLNL), Imperial College London and their collaborators used AI to optimize and 3D printing to create a target that effectively negates the RM instability.

“Our target reshapes the shockwave, in both space and time, as it travels through the material,” said first author Jergus Strucka, now at the European XFEL. “Instead of a single shock hitting the surface, we introduce voids to break it up into a sequence of smaller pressure pulses that arrive at slightly different times.”

3D-printing electronics with focused microwaves redefines possibilities in materials

In a recently published paper in Science Advances, a team led by Rice University’s Yong Lin Kong describes a new 3D-printing process with focused microwaves that overcomes a fundamental constraint of electronics 3D printing that has limited the field’s potential for more than a decade: the inability to heat printed ink—a crucial processing step—without damaging the materials underneath.

The ability to integrate functional materials and spatially program their properties governs both device performance and the limits of what can be built. Existing manufacturing approaches are fundamentally limited in both respects. Electronic components, for instance, are fabricated in massive, centralized foundries, often decoupled from the final device. Integrating them requires complex, labor-intensive assembly that constrains both the form and the function of what can ultimately be created.

Multimaterial 3D printing should, in principle, allow fabrication of free-form architectures in which electronic and mechanical properties are programmed directly into the structure. However, the thermal processing required to render printed electronic inks functional destroys the very materials these devices require.

Living buildings are now a reality. Swiss scientists unveil a self-healing material that breathes

Can a wall get stronger the more it breaks, and greener the more it stands? Swiss scientists say buildings are about to start breathing and devouring carbon, and the concrete status quo will not like the math.

From a Zurich lab comes a building skin that inhales carbon, knits its own cracks and grows sturdier with time. Researchers at ETH Zurich embedded photosynthetic cyanobacteria in a 3D printed hydrogel, creating a living material that draws down CO₂ and strengthens over time, its chlorophyll tinting it green. Across 400 days of testing, a prototype matched the yearly uptake of a 20-year-old pine, pulling in up to 18 kilograms of CO₂, while each gram of the base material fixes about 26 milligrams. Detailed in Nature Communications on April 6, 2026 and co-authored by Mark Tibbitt, the work points to facades that do carbon duty as part of everyday architecture.

Some breakthroughs feel both surprising and oddly familiar, like rediscovering a tool nature kept in plain sight. Swiss scientists have blended biology with architecture to shape a new kind of material that lives with its surroundings. It repairs small cracks, it sips CO2 from the air, and it quietly strengthens with time. The promise is simple, and bold: buildings that help clean the sky.

3D-printed metamaterials that stretch and fail by design

MIT’s Department of Mechanical Engineering (MechE) offers a world-class education that combines thorough analysis with hands-on discovery. One of the original six courses offered when MIT was founded, MechE faculty and students conduct research that pushes boundaries and provides creative solutions for the world’s problems.

Turmeric and ginger extract may boost implant bonding and kill 92% bacteria

An extract of turmeric and ginger helps bone implants bond strongly while killing bacteria and cancer cells, according to new research from Washington State University with implications for millions of patients with joint replacements and bone cancer. In early tests, the extract roughly doubled bone bonding within six weeks around the implant site, killed more than 90% of bacteria on implant surfaces, and sharply reduced cancer-causing cells. The findings marry elements of a naturopathic approach drawing on traditional medicine with current medical technologies. Turmeric, a golden-orange spice, and ginger root have been used for food and medicinal purposes in China and India for thousands of years.

“Basically, I say it’s combining the best with the latest,” said Susmita Bose, the Westinghouse Distinguished Chair Professor in WSU’s School of Mechanical and Materials Engineering and corresponding author of the paper. “The best part is from the food, and the latest aspect comes from the biomedical device.”

The new study, published in the Journal of the American Ceramic Society, is the most recent work from Bose and Amit Bandyopadhyay, Boeing Distinguished Professor in the School of Mechanical and Materials Engineering, demonstrating that compounds from turmeric and ginger can be effective supplements to cutting-edge medical treatment. That work builds upon their earlier research into the use of 3D printing to produce bone implants, an idea once considered far-fetched that is now a common way to manufacture implants.

3D-printed ‘spanlastics’ could change how cancer drugs reach tumors

University of Mississippi research offers hope that cancer drug therapies packaged in 3D-printed carriers could deliver medication directly to tumors while reducing many of the side effects that cancer patients endure. In a study published in Pharmaceutical Research, the Ole Miss team demonstrated that 3D-printed spanlastics—a tiny carrier filled with cancer-fighting drugs—could be implanted directly at the site of a tumor and kill those cells.

“This paper introduced a new 3D printing concept called FRESH 3D printing,” said Mo Maniruzzaman, chair and professor of pharmaceutics and drug delivery. “It uses spanlastics as a new nano-drug delivery vehicle for anticancer drug delivery. We actually applied this on breast cancer cells and we got some really, really promising data.”

Traditional chemotherapy is often given orally or injected into the bloodstream, where the circulatory system disperses cancer-fighting therapy throughout the body.

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