Curiosity Science

Researchers have developed a multifunctional p–n diode that can sense light, store data, and process information—all in one device. Built using GaN/AlGaN nanowire structures, this diode creates an “electron reservoir” that enables controlled charge trapping, allowing it to act like both a sensor and a memory unit.

Unlike traditional systems that require separate components, this three-in-one architecture can directly process images—performing tasks like denoising and classification without extra circuits.

The result? Smaller, faster, and more energy-efficient image sensors—pushing us closer to neuromorphic hardware (electronics that mimic brain-like processing).

This innovation could transform everything from smartphones to AI edge devices.

Reference:
Luo Y. et al. (2026). A single diode with integrated photosensing, memory and processing for neuromorphic image sensors. Nature Electronics.

In lab studies, purified plum polyphenols (PPP) — especially quercitrin — reduced growth of A549 lung cancer cells by triggering apoptosis (programmed cell death).

They work by blocking the PI3K/AKT/FOXO1 pathway, a key survival route cancer cells use. By inhibiting AKT phosphorylation, the extract shuts down growth signals and activates cell death.

At higher doses, PPP showed stronger inhibition than vitamin C in vitro.

⚠️ Lab study only — not a clinical treatment yet.

Source: Li et al., Plant Foods for Human Nutrition.

Researchers at Texas A&M University have developed an advanced vessel-on-a-chip (a micro-engineered device that mimics human blood vessels) that recreates the real structure of human blood vessels, rather than using simple straight channels.

What’s new

The chip can replicate:

Branching vessels (points where a vessel splits)
Stenosis (abnormal narrowing of a blood vessel)
Aneurysm-like expansion (localized widening of a blood vessel)

These features strongly affect blood flow and are common sites where vascular disease begins.

Why it matters

Realistic vessel shapes change shear stress (frictional force of blood flow on vessel walls), which directly influences endothelial cells (cells lining the inside of blood vessels). Abnormal shear stress can trigger vessel damage and disease progression.

This platform allows scientists to:

Study vascular disease under physiological conditions (conditions similar to the human body)
Test drugs more accurately
Reduce reliance on animal models

Research details

The device was designed by Jennifer D. Lee in the lab of Abhishek Jain and builds on earlier straight-vessel models. The study was published in Lab on a Chip.

Future plans

Researchers aim to add more vascular cell types to study cell–cell interactions (how different cells affect each other) under realistic blood flow.

Source
“Scientists Replicate Real Blood Vessels To Unlock New Treatments for Vascular Disease”
Published January 29, 2026
Original research: Lee JD et al., Lab on a Chip, March 5, 2025
DOI: 10.1039/D4LC00968A

For decades, the human heart was thought to be largely incapable of repairing itself after injury. A new study now challenges that belief, showing that human heart muscle cells can regenerate after a heart attack, although at a limited level.

When blood flow is blocked during a heart attack, oxygen-starved heart muscle cells die. The heart typically repairs the damage with scar tissue, which cannot contract. This weakens the heart and raises the risk of future heart failure. While animals like mice can regenerate heart muscle, humans were believed to lack this ability.

Researchers led by Robert Hume at the University of Sydney examined living human heart tissue from organ donors and patients undergoing bypass surgery. Using RNA sequencing, protein analysis, and metabolic profiling, they directly observed human cardiomyocytes re-entering the cell cycle and dividing after injury.

The study also identified specific genes, proteins, and metabolites linked to this regeneration, many of which were previously seen only in animal models. While the natural response is not strong enough to fully repair the heart, it proves that the human heart has an intrinsic regenerative capacity.

The findings open the door to future therapies that could boost this natural repair process, potentially transforming treatment for heart attack survivors and reducing long-term heart failure risk.

📄 Reference: Hume R. et al., Circulation Research (2026).

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