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AI unlocks QLED recipe that doubles efficiency and boosts lifetime 40-fold

A technology has been developed that allows artificial intelligence to inversely determine the process conditions for quantum-dot light-emitting diode (QLED) devices—conditions that previously required extensive trial and error to identify.

When applied to actual devices, the technology roughly doubled efficiency and extended operational lifetime more than 40-fold, raising expectations that it could accelerate the development of next-generation displays.

Seoul National University’s College of Engineering announced that a joint research team led by Professor Jeonghun Kwak of the Department of Electrical and Computer Engineering and Professor Jaehoon Lim of Sungkyunkwan University’s Department of Energy Science has developed an AI-based platform that inversely designs the optimal solvent properties for arranging quantum dots uniformly and densely during the fabrication of QLEDs.

Saturn’s moon Titan runs the same weather cycle as Earth rivers and seas liquid doing all the work is methane, and the bedrock underfoot is water frozen at nearly minus 180 degrees, harder than most stone on Earth

Saturn’s largest moon runs a full hydrological cycle — clouds, storms, rivers, lakes, seas — but the rain is liquid methane and the bedrock is water ice frozen to about minus 179 Celsius, hard enough to build mountains from.

Scientists use relay synthesis to create key building blocks of reserve antibiotic to combat resistance

Chemists from Otto von Guericke University Magdeburg have achieved an important research success in the fight against resistant bacteria. The team led by scientist Professor Dr. Dieter Schinzer from the Institute of Chemistry has succeeded in producing key building blocks of the naturally occurring substance Neosorangicin A in the laboratory for the first time. This means it is now possible to develop Neosorangicin A in a targeted manner as a promising reserve antibiotic candidate to combat antibiotic resistance in the future.

To artificially produce the naturally occurring substance, the scientists used what is known as relay synthesis—instead of immediately creating the entire complex molecule, they first synthesized the critical sections, which served as staging points en route to the complete substance. The research success lies not only in the components produced but also in proof of the development process. The results have just been published in the journal Chemistry—A European Journal.

4D force patterning enables spatial control of angiogenesis

When the engineers used gene editing to suppress the PIEZO1 gene, the cells became “deaf” to the physical tugging. Even when the magnets vigorously exercised the gel, the blood vessels barely sprouted at all. This proved that physical force directly activates this cellular gatekeeper, signaling the vessel that it’s time to grow and branch out.

Engineering organized microvascular networks remains a critical challenge in tissue engineering and regenerative medicine. While biochemical approaches for patterning angiogenesis via growth factor delivery have shown promise, their inability to pattern sustained growth factors with spatiotemporal control limits effectiveness. Here, we demonstrate that dynamically patterned mechanical forces enable precise spatiotemporal control over angiogenic sprouting. We developed a magnetically actuated human vessel-on-a-chip platform that integrates a perfusable endothelialized microchannel within a collagen matrix and allows noninvasive and tunable mechanical stimulation across three spatial dimensions and time (4D). Using an automated 3-axis actuator, we systematically investigated how strain magnitude, frequency, and direction modulate endothelial cell behavior and vessel morphogenesis.

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