Near-Void-Free 3D Printing

Researchers at The Institute of Metal Research of the Chinese Academy of Sciences have made significant strides in the development and manufacturing of near-void-free titanium alloys using 3D printing. This achievement could lead to the production of titanium alloy materials with exceptional fatigue resistance, paving the way for broader applications of metal 3D printing materials. Read on to learn more.

Sweat Sensor Wristwatch for Real-Time Monitoring

A unique wristwatch contains multiple modules, including a sensor array, a microfluidic chip, signal processing, and a data display system to monitor chemicals in human sweat. It can...

AI Paper-Based Sensor

Researchers have created a flexible paper-based sensor that operates like the human brain. They fabricated a photo-electronic artificial synapse device composed of gold electrodes on top of a 10 μm transparent film consisting of zinc oxide nanoparticles and cellulose nanofibers.

Microneedle Patch Helps People Control Robotic Exoskeletons

Engineers from Korea and the United States have developed a wearable, stretchy patch that could help to bridge the divide between people and machines — and with benefits for the health of humans around the world.

3D Printing Method Builds Structures with Two Metals

Taking a cue from the structural complexity of trees and bones, Washington State University engineers have created a way to 3D print two types of steel in the same circular layer using two welding machines. The resulting bimetallic material proved 33–42 percent stronger than either metal alone, thanks in part to pressure caused between the metals as they cool together.

Novel ‘Bone Bandage’ Material for Cracked Bones

Researchers have developed a biomimetic scaffold that generates electrical signals upon the application of pressure by utilizing the unique osteogenic ability of hydroxyapatite (HAp). HAp is...

Using Static Electricity to Enhance Biomedical Implants

Researchers have created electrostatic materials that function even with extremely weak ultrasound, heralding the era of permanent implantable electronic devices in biomedicine.

Infection-Resistant, 3D Printed Metals Developed for Implants

The work could lead to better infection control in many common surgeries, such as hip and knee replacements, that are performed daily around the world. Bacterial colonization of the implants is one of the leading causes of their failure and bad outcomes after surgery.

Reshaping Medical Instrument Manufacturing with New Technology

Additive fusion technology opens doors to more sustainable manufacturing options that can help lower cost and reduce weight and waste, all while maintaining the integrity and strength required of geometrically complex and small parts subjected to harsh environments.

Flexible Sweat Sensor Based on Photonic Cellulose Nanocrystal

Researchers have reported a sustainable, insoluble, and chiral photonic cellulose nanocrystal patch for calcium ion (Ca2+) sensing in sweat.

Nanobiosensor Detects SARS-CoV-2

Scientists have developed a nanobiosensor based on gold nanowires. Originally only intended for the detection of COVID-19-associated antigens and antibodies, the biosensor is also transferable to other biomarkers.

3D Printing with Bacteria-Loaded Ink Produces Bone-Like Composites

Researchers have pioneered a 3D printable ink that contains Sporosarcina pasteurii: a bacterium that, when exposed to a urea-containing solution, triggers a mineralization...

Sensor Enables Smart Diapers, Other Health Monitors

A new sensor could help workers in daycares, hospitals, and other settings provide more immediate care to their charges. The new sensor — so cheap and simple to produce that it can be...

Sensor Detects Heavy Metals in Sweat

Researchers have developed a portable sensor made of simple materials to detect heavy metals in sweat, which is easily sampled. The sensor is simple in terms of the materials used to make it and the...

Thermoresponsive Smart Materials

The researchers used water as the solvent and developed an LCST-type thermoresponsive polymer by adding alkaline earth metal ions — which are divalent cations — to polymers and aqueous solutions.

Copper Nanowires Combat Spread of Diseases

An ancient metal used for its microbial properties is the basis for a materials-based solution to disinfection. A team of scientists has developed an antimicrobial spray that deposits a layer of...

Helmet Made of Magnetic Metamaterials Could Improve Brain Scans

It may look like a bizarre bike helmet, or a piece of equipment found in Doc Brown’s lab in Back to the Future, yet this gadget made of plastic and copper wire is a...

Electromagnetic Tracking: Detecting and Mitigating Distortion Advances Surgical Navigation

Advancing minimally invasive surgery and its usefulness in diagnosis and treatment in more healthcare situations is a direct challenge for medical...

Biodata Compensation: An Ethical Responsibility

The global big data market had a revenue of $162.6 billion in 2021.1 Data is becoming more valuable to companies than gold. However, this data has been used, historically, without...

Understanding Titanium’s Biocompatibility

Scientists used photoelectrochemical measurement and x-ray photoelectron spectroscopy to clarify the source of titanium’s biocompatibility when implanted into the body, as with hip replacements...

Deep UV Lasers for Device Sterilization

Engineers have created a deep-ultraviolet (UV) laser using semiconductor materials that show great promise for improving the use of UV light for sterilizing medical tools, among other applications....

What Medical Device OEMs Should Know About Outsourced MIM

The basis of metal injection molding (MIM) technology involves fine metal powders, which are combined with thermoplastic binders and surfactants, allowing injection in a plastic...

Promising Brain Biosensor Monitors Health

Scientists have successfully tested in the lab a tiny biosensor they developed that can detect biomarkers tied to traumatic brain injuries. Researchers say their waterproof biosensor includes an...

New Thermofluidic Improves Lab-On-a-Chip Applications

Researchers have succeeded in moving tiny amounts of liquid at will by remotely heating water over a metal film with a laser.

Skin Sensors Monitor Health

Skin-sensing wearables coat copper nanowires with graphene oxide.

Pulse Plasma Nitriding Provides Unique Surface Treatment of Implantable Metals

Plasma nitriding has a broad appeal to surface treat many metallic materials used in medical applications, including titanium alloys

Optical Design Considerations for Additive Manufacturing

Light-based methods open many opportunities for medical applications.

Liquid Metal Coating Creates Antimicrobial Fabric

A team used liquid gallium to test an antiviral and antimicrobial on a range of fabrics, including facemasks.

Liquid Metal Sensors and AI Help Prosthetic Hands to ‘Feel’

Researchers used individual fingertips fitted with stretchable tactile sensors with liquid metal.