A highly sensitive chemical sensor based on Raman spectroscopy and using nitrogen-doped graphene as a substrate was developed by an international team of researchers working at Penn State. In this case, doping refers to introducing ...
Nanomaterials
Jul 22, 2016
2
1385
When cities transform into a colorful world of lights as darkness falls, it's often only possible to estimate their contours, which depending on the perspective can draw the attention to key details or trivia. In fluorescence ...
Optics & Photonics
Apr 13, 2022
0
766
The sudden deaths of all five meerkats at the Philadelphia Zoo this month were apparently caused by an accidental poisoning linked to a dye that is used to mark the animals, zoo officials said, but an investigation into the ...
Plants & Animals
Jun 14, 2023
0
23
A little sodium goes a long way. At least that's the case in carbon-based energy technology. Specifically, embedding sodium in carbon materials can tremendously improve electrodes—which could streamline solar cell and supercapacitor ...
Nanomaterials
Dec 20, 2016
0
839
Discharged in large quantities by textile, cosmetic, ink, paper and other manufacturers, dyes carry high-toxicity and can bring potential carcinogens to wastewater. It's a major concern for wastewater treatment—but researchers ...
Analytical Chemistry
Oct 10, 2023
0
45
(PhysOrg.com) -- To study the behavior of large protein complexes and long DNA chains in solution, researchers use so-called molecular traps. However, earlier traps have proven ineffective when working with small molecules ...
(PhysOrg.com) -- Porphyrins are most commonly thought of as the pigment in red blood cells, but now scientists have found that porphyrins can also be used to increase the efficiency of an inexpensive type of solar cell. In ...
Most viral test kits rely on labor- and time-intensive laboratory preparation and analysis techniques; for example, tests for the novel coronavirus can take days to detect the virus from nasal swabs. Now, researchers have ...
Analytical Chemistry
Apr 23, 2020
0
1467
(Phys.org)—Sony's Bravia LCD TVs, in selected models, have incorporated quantum dot technology to boost sales of these high-end televisions by featuring exceptionally high-end color. The technology is from the Massachusetts-based ...
Solar energy is on the rise. Many technical advances have made solar cells quite efficient and affordable in recent years. A big disadvantage remains in the fact that solar cells produce no power when it's raining. This may ...
Nanomaterials
Apr 1, 2016
1
142
