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Ultra-thin semiconductors overcome performance limits with localized thick-contact design

As semiconductor chips become increasingly thinner, the components inside chips are locked in a fierce race to achieve the ultimate ultra-thin state. However, this has presented a structural limitation: the thinner the device, the harder it is for electricity to flow.

Recently, a research team at POSTECH (Pohang University of Science and Technology) successfully resolved this issue through a simple yet innovative approach: “thickening only the necessary parts.”

The research team, led by Professor Byoung Hun Lee from POSTECH’s Department of Electrical Engineering and the Department of Semiconductor Engineering, has developed a technology that dramatically lowers contact resistance by redesigning the metal-semiconductor contact structure in ultra-thin tellurium (Te) transistors.

Battleship-trained AI learns to ask sharper questions, boosting win rate from 8% to 82%

In 2026, the hype for artificial intelligence agents is louder than ever before. These semi-autonomous programs can “think” and execute well-defined tasks in areas like customer service and software development, typically using language models (LMs). But fields like medical diagnosis and scientific discovery require them to inquire about a vast range of solutions in uncertain environments which LMs struggle with.

Researchers at MIT’s Computer Science and Artificial Intelligence Laboratory (CSAIL) and Harvard University’s School of Engineering and Applied Sciences (SEAS) peered deeper into LMs to understand their main issues in high-stakes settings. Their test: Battleship, a classic guessing game that’s helped cognitive scientists study how humans seek information.

CSAIL and SEAS scholars added a twist by reframing the game around asking and answering natural language questions. In their “Collaborative Battleship” game, one participant is a “captain” who inquires about where hidden ships are, while their teammate plays the “spotter” by responding to those questions in real time.

AI-designed universal coronavirus vaccine passes first human trial

Because the method does not require a needle, it could offer an alternative for people who are uncomfortable with injections. Researchers also believe it may make large scale vaccination campaigns easier and faster, particularly in settings where traditional injections are more difficult to administer.

Before human testing began, animal studies showed the vaccine could generate strong immune responses against multiple coronaviruses.

Inflammation-Induced Tumorigenesis and Metastasis

Inflammation, especially chronic inflammation, plays a pivotal role in tumorigenesis and metastasis through various mechanisms and is now recognized as a hallmark of cancer and an attractive therapeutic target in cancer. In this review, we discuss recent advances in molecular mechanisms of how inflammation promotes tumorigenesis and metastasis and suppresses anti-tumor immunity in various types of solid tumors, including esophageal, gastric, colorectal, liver, and pancreatic cancer as well as hematopoietic malignancies.

Chemists have demonstrated for the first time how RNA may have copied itself on early Earth — solving a bottleneck that had blocked the origin-of-life field for decades

A paper published in Nature Chemistry in May 2025 describes what its authors call the first demonstration of exponential RNA replication by a polymerase ribozyme under conditions that could plausibly have occurred on the early Earth. The work comes from Dr James Attwater and Dr Philipp Holliger at the MRC Laboratory of Molecular Biology in Cambridge, with co-authors at UCL Chemistry.

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