Old World metals traded on Alaska coast hundreds of years before contact with...
Two leaded bronze artifacts found in northwestern Alaska are the first evidence that metal from Asia reached prehistoric North America prior to contact with Europeans, according to new Purdue...
View ArticleFrom climate killer to fuels and polymers
Researchers have discovered a catalyst that performs highly selective conversion of the greenhouse gas carbon dioxide into ethylene – an important source material for the chemical industry. In the...
View ArticleSmallest hard disk to date writes information atom by atom
Every day, modern society creates more than a billion gigabytes of new data. To store all this data, it is increasingly important that each single bit occupies as little space as possible. A team of...
View ArticleTapped out: Dangerous contaminations in NSW household water supplies
A study by Macquarie University has detected both copper and lead contamination at the domestic consumer's kitchen tap in 100 per cent and 51 per cent of the samples respectively.
View ArticleQuantum dots with impermeable shell: A powerful tool for nanoengineering
Unique optical features of quantum dots make them an attractive tool for many applications, from cutting-edge displays to medical imaging. Physical, chemical or biological properties of quantum dots...
View ArticleOn-surface chemistry leads to novel products
On-surface chemical reactions can lead to novel chemical compounds not yet synthesized by solution chemistry. The first-step, second-step, and third-step products can be analyzed in detail using a...
View ArticleScientists purify copper nanowires
Cell phones and Apple watches could last a little longer due to a new method to create copper nanowires.
View ArticleChemical processes use more copper nanoparticles than stars in the sky – but...
Copper particles just a few nanometres in diameter are an extremely important component in catalysts for chemical processes. These processes require immense quantities of these copper nanoparticles –...
View ArticleEngineers develop process for electronic devices that stops wasteful power...
According to the National Resource Defense Council, Americans waste up to $19 billion annually in electricity costs due to "vampire appliances," always-on digital devices in the home that suck power...
View ArticleNovel imaging approach reveals how ancient amulet was made
At 6000 years old, this copper amulet is the earliest lost-wax cast object known. Now, researchers have finally discovered how it was made, using a novel UV-visible photoluminescence spectral imaging...
View ArticleBiocompatible heterogeneous copper catalyst for click chemistry in living...
Assembling a drug from harmless components at the target location, such as a tumor, would help reduce the side effects of treatment. In the journal Angewandte Chemie, British and Malaysian scientists...
View ArticleNew study shows why heme-copper oxidases prefer copper over iron
(Phys.org)—A family of enzymes known as heme-copper oxidases (HCOs) plays a pivotal role in the reduction of oxygen into water during cellular respiration. One mystery surrounding heme-copper oxidases...
View ArticleResearchers may have found first polluted river from before Bronze Age
Industrial pollution may seem like a modern phenomenon, but in fact, an international team of researchers may have discovered what could be the world's first polluted river, contaminated approximately...
View ArticleChemists uncover a means to control catalytic reactions
Scientists at the University of Toronto have found a way to make catalysis - the use of catalysts to facilitate chemical reactions - more selective, breaking one chemical bond 100 times faster than...
View ArticleGreen chemistry: Au naturel catalyst mimics nature to break tenacious...
A new catalyst for breaking the tough molecular bond between carbon and hydrogen holds the promise of a cleaner, easier and cheaper way to derive products from petroleum, says a researcher at Southern...
View ArticleModeling magma to find copper
Copper is an essential element of our society with main uses in the field of electricity and electronics. About 70% of the copper comes from deposits formed several million years ago during events of...
View ArticleHistorical copper trapped in ice
South America's mining industry supplies half the world with copper. The world's largest mines are located in the Andes. Yet just when copper production began there has remained unclear, until now....
View Article60,000-year-old microbes found in Mexican mine: NASA scientist
NASA scientists have discovered living microorganisms trapped inside crystals for as long as 60,000 years in a mine in Mexico.
View ArticleTiny nanoclusters could solve big problems for lithium-ion batteries
As devices become smaller and more powerful, they require faster, smaller, more stable batteries. University of Illinois chemists have developed a superionic solid that could be the basis of...
View ArticleCopper mining with bioactive substances derived from bacteria
Chile is one of the most important suppliers of copper to German industry. Within the framework of the scientific and technological cooperation between the two countries, research is now being pursued...
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