Category Physics

Researchers 3D Print lifelike Heart Valve Models

Model
Patient-specific organ models, which include integrated 3D-printed soft sensor arrays, are fabricated using specialized inks and a customized 3D printing process. Such models can be used in preparation for minimally invasive procedures to improve outcomes in thousands of patients worldwide. Credit: McAlpine Group, University of Minnesota

Organ model could improve surgical outcomes for thousands of patients worldwide. Researchers from the University of Minnesota, with support from Medtronic, have developed a groundbreaking process for multi-material 3D printing of lifelike models of the heart’s aortic valve and the surrounding structures that mimic the exact look and feel of a real patient.

These patient-specific organ models, which include 3D-printed soft sensor arrays integrated in...

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Student Research Team develops Hybrid Rocket Engine

a) A pre-pandemic photo of some of the team members – left to right: Abhiraj Majumder (AE ‘21), Chris Nielsen (Purdue Graduate Student), Connor Latham (AE ‘20), Vignesh Sella (AE ‘21), Andrew Larkey (ME ‘21), Avery Moore (AE ‘21), Avinash Rao (AE ‘21). b) Computer-aided design shows cross section of the combustion chamber

In a year defined by obstacles, a University of Illinois at Urbana-Champaign student rocket team persevered. Working together across five time zones, they successfully designed a hybrid rocket engine that uses paraffin and a novel nitrous oxide-oxygen mixture called Nytrox. The team has its sights set on launching a rocket with the new engine at the 2021 Intercollegiate Rocketry and Engineering Competition.

“Hybrid propulsion powers Virgin Galactic’...

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Locust Swarm could improve Collision Avoidance

Locust swarm could improve collision avoidance
A collision detector for vehicles mimics an avoidance neuron in locusts that allows them to fly in swarms. Credit: Jennifer M. McCann / Penn State

Plagues of locusts, containing millions of insects, fly across the sky to attack crops, but the individual insects do not collide with each other within these massive swarms. Now a team of engineers is creating a low-power collision detector that mimics the locust avoidance response and could help robots, drones and even self-driving cars avoid collisions.

“We are always looking for animals with unusual abilities, ones that do something better than humans,” said Saptarshi Das, assistant professor of engineering science and mechanics...

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Wireless Device makes Clean Fuel from Sunlight, Carbon Dioxide and Water

Wireless device makes clean fuel from sunlight, CO2 and water
This device, developed by a team from the University of Cambridge, is a significant step toward achieving artificial photosynthesis – a process mimicking the ability of plants to convert sunlight into energy. It is based on an advanced ‘photosheet’ technology and converts sunlight, carbon dioxide and water into oxygen and formic acid – a storable fuel that can be either be used directly or be converted into hydrogen. Credit: University of Cambridge

Researchers have developed a standalone device that converts sunlight, carbon dioxide and water into a carbon-neutral fuel, without requiring any additional components or electricity.

The device, developed by a team from the University of Cambridge, is a significant step toward achieving artificial photosynthesis—a process mimicking the a...

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