科学与环境
Carbon dots fluoresce their way through the rainbow as liquids change
来源: Phys.org - latest science and technology news stories · 发布于
Fluorescent materials usually emit a single consistent color. They are typically made from dyes or metallic components. In contrast, researchers reporting in ACS Central Science have created carbon dots that can fluoresce in a range of colors under UV light, depending on the conc
Fluorescent materials usually emit a single consistent color. They are typically made from dyes or metallic components. In contrast, researchers reporting in ACS Central Science have created carbon dots that can fluoresce in a range of colors under UV light, depending on the concentration and the liquid they're in.
The team incorporated the new carbon dots into plastic decorations and used them to create a data encryption system.
相关报道
BBC Inside Science
Time is running out for one of the most ambitious environmental pledges in history.
feeds.bbci.co.uk ·
A bust-up between mathematicians is fuelling fears that AI could undermine science
AI has made some awesome scientific discoveries. But now, questions are being raised about its accuracy
feeds.bbci.co.uk ·
European orbiter detects fresh hints of volcanic activity on Mars
New evidence from gas seeping above volcanic rifts suggests Mars is not geologically dead deep inside, but merely sleeping. Fresh fissures along the Alba Mons region hint at active spots under the surface, where gases from inside the planet may be making their way up to the surfa
Phys.org - latest science and technology news stories ·
How ranchers on Brazil's 'Dirty List' bypass forced labor safeguards by selling cattle through intermediaries
Brazil's "Dirty List," a public registry that names employers found to have violated anti-slavery laws, is a key component of the country's efforts to combat forced labor. Major meatpackers in Brazil signed sustainable sourcing commitments promising to not purchase cattle directl
Phys.org - latest science and technology news stories ·
First direct observations reveal hydrogen dissolved in tiny gaps between metal atoms
University of Sydney researchers have made a breakthrough by directly observing hydrogen in the tiny spaces between the atoms in metal alloys. The world-first observation of hydrogen dissolving in these 'metal crystal lattices' offers fresh insights into why hydrogen can weaken m
Phys.org - latest science and technology news stories ·