Search results for black arsenic

Nanomaterials May 8, 2024

Scientists create black arsenic visible infrared photodetectors

In recent years, the exceptional structure and fascinating electrical and optical properties of two-dimensional (2D) layered crystals have attracted widespread attention. Examples of such crystals include graphene, black ...

Analytical Chemistry Apr 30, 2024

Many old books contain toxic chemicals—here's how to spot them

In our modern society, we rarely consider books to be dangerous items. However, certain books contain elements so hazardous that they require scrutiny before being placed on the shelves of public libraries, bookstores or ...

Other Apr 15, 2024

A young Black scientist discovered a pivotal leprosy treatment in the 1920s—but an older colleague took the credit

Hansen's disease, also called leprosy, is treatable today—and that's partly thanks to a curious tree and the work of a pioneering young scientist in the 1920s. Centuries prior to her discovery, sufferers had no remedy for ...

Cell & Microbiology Mar 18, 2024

Snakebites: We thought we'd created a winning new antivenom but then it flopped. Why that turned out to be a good thing

Snakebites kill over 100,000 people each year, and hundreds of thousands of survivors are left with long-term disabilities such as amputations.

Environment Nov 24, 2023

Maui residents wonder if their burned town can be made safe. The answer? No one knows

When Daniel Skousen scrubs at the ash and soot covering his Maui home, he worries about the smell.

Environment Nov 14, 2023

How waste from the mining industry has perpetuated apartheid-like policies in South Africa

While apartheid—South Africa's brutal racial segregation laws of the 20th century—officially came to an end in the early 1990s, its harmful effects persist today, says Stanford historian Gabrielle Hecht in her new book, ...

Plants & Animals Oct 6, 2023

Paleontologists find first molecular evidence of ginger pigment molecules in fossil frogs

Paleontologists at University College Cork (UCC) have found the first molecular evidence of pheomelanin, the pigment that produces ginger coloration, in the fossil record.

Biochemistry Jul 5, 2023

Researchers take a step forward in turning chicken feathers into water filters

New University of Alberta research is fluttering closer to turning chicken feathers into an effective filter for water decontamination.

Social Sciences Jun 26, 2023

Opinion: Ja Morant shows how a 'good guy with a gun' can never be Black

"Man enough to pull a gun, be man enough to squeeze it," rapped NBA superstar Allen Iverson on his song "40 Bars."

Earth Sciences Jun 14, 2023

Opinion: Wildfire smoke and dirty air are also climate change problems, but there are solutions for a world on fire

As the eastern U.S. and Canada reeled from days of thick wildfire smoke in early June 2023, millions of people faced the reality of climate change for the first time. Shocking images of New York under apocalyptic orange skies ...

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