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technology

The Secret to Brighter LEDs: Inorganic Ligands in Quantum Dots

December 25, 2024

Quantum dots (QDs) are tiny particles with amazing abilities in optoelectronics. You might have seen them in your TV or phone screens, thanks to their special light-emitting properties. These QDs work best in light-emitting diodes (LEDs) when they have inorganic ligands. Ligands are like tiny helper

technology

PbS Quantum Dots: A New Twist for Multitask Computing

December 23, 2024

These days, with the explosion of data and the growth of the internet of things, we need devices that can sense and process information in many ways at once. Taking a cue from how our human senses work, scientists have created a clever system called an optoelectronic-memristor-based reservoir comput

health

Discovering Asthma's Hidden Molecular Divisions

December 20, 2024

Asthma isn't one-size-fits-all; it comes in different forms. Scientists are eager to uncover the molecular secrets behind these variations. They analyzed a massive amount of data—808 samples from 11 different groups, including three from the Severe Asthma Research Program. This data came from 218 as

health

Imaging EBV-Positive Nasopharyngeal Cancer: 68Ga-DOTATATE vs. 18F-FDG PET/CT

December 14, 2024

Nasopharyngeal carcinoma, a type of cancer prevalent in certain regions, has a strong link to the Epstein-Barr virus (EBV). This study wanted to find out which imaging method, 68Ga-DOTATATE PET/CT or 18F-FDG PET/CT, was better for detecting and managing EBV-positive nonkeratinizing nasopharyngeal ca

health

Sleeping with Weight: Do Heavy Blankets Help?

December 8, 2024

Ever wondered if those heavy blankets people rave about can actually help you sleep better? Let's find out. When Rhonda from Charleston first tried her husband's weighted blanket, she was amazed at how quickly she dozed off. "It feels like a giant hug, " she said. These blankets can be super cozy, e

health

Creating Nanofibers for Better Blood Vessel Replacement

December 3, 2024

Researchers are exploring new ways to make artificial blood vessels work better. One big challenge is keeping these small-diameter vessels from clogging or getting inflamed after surgery. A key step is finding materials that can release helpful substances slowly and create a good environment for new

health

Laser Surgery through the Nose: A Novel Way to Treat Vocal Cord Narrowing

December 1, 2024

Imagine trying to perform a delicate surgery on the vocal cords without being able to see them clearly. This was the challenge faced by doctors treating a 56-year-old man with a narrowed vocal cord condition known as posterior glottic stenosis (PGS). Instead of using the usual method of suspension l

science

Freeze-Drying: The Secret to Long-Lasting Neural Electrodes

November 29, 2024

Ever wondered how neural electrodes can be kept in top shape? Scientists have unveiled a simple method. By freeze-drying these electrodes, which are typically coated with a polymer called PEDOT-PSS, they can remain effective for much longer. Normally, electrodes begin to wear out after a few weeks,

health

MicroRNA Mystery: How Low miR-34a Levels Impact Placenta Health

November 28, 2024

Ever wondered why some pregnancies are more challenging than others? Let's dive into the fascinating world of microRNAs and their impact on the placenta. We're focusing on miR-34a, a tiny but mighty molecule that plays a big role in how well the placenta develops. When miR-34a levels are low, it can

science

Detecting Copper Ions with Graphene: A Fluorometric and Visual Approach

November 21, 2024

Scientists have discovered a new way to detect copper ions (Cu²⁺) using tiny particles called graphene quantum dots (GQDs). Here's how it works: when copper ions and a chemical called ascorbate mix, they create a reaction that makes highly reactive hydroxyl radicals (·OH). These radicals can mess wi