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Researchers produce blackest black material to date

Researchers produce blackest black material to date

Science
Sept. 13 (UPI) -- Material engineers at MIT have produced the blackest black material to date, 10 times blacker than previous record-black materials. The material is composed of microscopic filaments of carbon. In the lab, scientists grew a forest of vertically aligned carbon nanotubes on a chlorine-etched aluminum foil substrate. The foil-based patch of carbon trees captures 99.96 percent of incoming light, a new record. Researchers described the new material this week in the journal ACS Applied Materials and Interfaces. The authors of the new paper don't expect to hold the record for very long. Eventually, the material's creators predict, material scientists will design a material that absorbs 100 percent of light. "Our material is 10 times blacker than anything that's ever been repor...
Swedish researchers unveil world’s smallest accelerometer

Swedish researchers unveil world’s smallest accelerometer

Science
Sept. 3 (UPI) -- Engineers in Sweden have developed the world's smallest accelerometer using graphene. The accelerometer could be used to create new wearable technologies for use in medicine, fitness and gaming. "Based on the surveys and comparisons we have made, we can say that this is the smallest reported electromechanical accelerometer in the world," Xuge Fan, a researcher at the KTH Royal Institute of Technology, said in a news release. "We can scale down components because of the material's atomic-scale thickness, and it has great electrical and mechanical properties," Fan said. The researchers described the new nano-electromechanical system, or NEM, this week in the journal Nature Electronics. To develop the tiny actuator, scientists needed to create an ultra-small, sensitive tran...
Researchers may have found a way to block gonorrhea infection

Researchers may have found a way to block gonorrhea infection

Health
Aug. 5 (UPI) -- Researchers may have found a way to prevent gonorrhea infection, which affects more than 820,000 people each year, a new study says. By cutting off the capacity for the bacterial pathogen Neisseria gonorrhoeae to use the mineral zinc, researchers say they can prevent infection, according to research published Monday in PLoS Pathogens. This is an important finding because, in addition to gonorrhea being resistant to most drugs, it may lead to development of a vaccine against the sexually transmitted infection. "Our results are significant because N. gonorrhoeae will die if it can't get enough zinc," Cynthia Nau Cornelissen, senior author of the study and director of the Center for Translational Immunology in the Institute for Biomedical Sciences, said in a press release. I...
Researchers create human-monkey chimeras in China

Researchers create human-monkey chimeras in China

Science
Aug. 1 (UPI) -- Scientists are experimenting with human-monkey chimeras in China. According to a report by Spanish newspaper El Pais, researchers are inserting human cells into monkey embryos in the lab and watching them grow. The research is being carried out by an international team of researchers led by Spanish-born geneticist Juan Carlos Izpis├║a Belmonte, an expert in pluripotent stem cells who operates a lab at the Salk Institute for Biological Studies in California. Researchers from China, Spain and the United States are involved. As the MIT Technology Review summarized, the purpose of the experiments is to create "human-animal chimeras," or more specifically, human-monkey hybrids. Chimeras are single organisms made up of cells with different genotypes. Most research involving chim
Researchers question Einstein’s theory of relativity, but it holds up

Researchers question Einstein’s theory of relativity, but it holds up

Science
July 26 (UPI) -- It's been more than a century since Albert Einstein published his theory of relativity. And while new research shows that it remains intact, they also say new questions have arisen. A comprehensive test identified a relativistic redshift from light emitted from a star circling the Sagittarius A* black hole in the middle of the Milky Way, according to a study published Thursday in Science. "Einstein's right, at least for now," Andrea Ghez, who runs the Galactic Center Group at UCLA and study co-lead author, said in a news release. "We can absolutely rule out Newton's law of gravity. Our observations are consistent with Einstein's theory of general relativity. However, his theory is definitely showing vulnerability. It cannot fully explain gravity inside a black hole, and ...