Highest throughput 3D printer is the future of manufacturing
Researchers have developed a new, futuristic 3D printer that is so big and so fast it can print an object the size of an adult human in just a couple of hours.
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3D printed chocolate without temperature control
A new approach to the 3D printing of chocolate using cold extrusion instead of conventional hot-melt extrusion method eliminates the need for stringent temperature controls, offering wider potential for 3D printing temperature-sensitive food.
Read moreDigital breast tomosynthesis increases cancer detection over full-field mammography
A new article compares cancer detection rates (CDR) for screening digital breast tomosynthesis (DBT) versus full-field digital mammography (FFDM). Researchers found that DBT results in 'significantly increased CDR' — irrespective of tumor type, size, or grade of cancer.
Read moreOscillation assisted 3D printing renders ultrafast fabrication of microlens array
An oscillation assisted digital light processing (DLP) based 3D printing approach is developed to enable ultrafast fabrication of microlens arrays with optically smooth surface (1 nm surface roughness) via a single 1-3 seconds exposure of grayscale UV light.
Read moreSix degrees of nuclear separation
For the first time, scientists have printed 3D parts that pave the way to recycling up to 97 percent of the waste produced by nuclear reactors.
Read moreNew silk materials can wrinkle into detailed patterns, then unwrinkle to be 'reprinted'
Engineers have developed silk materials that can wrinkle into highly detailed patterns — including words, textures and images as intricate as a QR code or a fingerprint. The patterns are stable, but can be erased by flooding the surface of the silk with vapor, allowing the surface to be printed again. The researchers demonstrate multiple examples of the silk wrinkle patterns, and envision a wide range of potential applications for optical electronic devices.
Read moreStructural color printing of 3D microscale objects by shrinking photonic crystals
Researchers have developed a 'coloring-by-shrinking' method to print arbitrary 3D microscopic objects exhibiting structural colors. The design consisted of woodpile photonic crystals with varying lattice constants as the 3D building blocks. These structures remain colorless until they are heat treated, causing them to shrink and manifest color, a result of their lattice constants shrinking down below the wavelength of visible light. The team printed a colorful microscopic Eiffel Tower with structural colors, demonstrating feature sizes smaller than 100 nm.
Read moreSecure printing with water-based invisible ink
Researchers have developed a rewriteable paper coating that can encrypt secret information with relatively low-tech invisible ink — water. A message printed out by a water-jet printer on a manganese-complex-coated paper is invisible to the naked eye, but the message reveals itself under 254 nm UV light. The paper can be ready for another round of printing after erasing the message by heating it with a blow dryer for 15-30 seconds. The method allows reversible secure printing for at least 30 cycles.
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