University of Cambridge researchers have developed the world’s tiniest engine, capable of a force per unit-weight nearly 100 times higher than any motor or muscle.
The new nano-engines could lead to nanorobots small enough to enter living cells to fight disease, the researchers say.
Professor Jeremy Baumberg from the Cavendish Laboratory, who led the research, has named the devices “actuating nanotransducers” (ANTs). “Like real ants, they produce large forces for their weight,” he quipped.
Chinese technology giant Huawei is preparing for a world where people live forever, dead relatives linger on in computers and robots try to kill humans.
Huawei is best known as one of the world’s largest producers of broadband network equipment and smartphones. But Kevin Ho, president of its handset product line, told the CES Asia conference in Shanghai on Wednesday the company used science fiction movies like “The Matrix” to envision future trends and new business ideas.
“Hunger, poverty, disease or even death may not be a problem by 2035, or 25 years from now,” he said. “In the future you may be able to purchase computing capacity to serve as a surrogate, to pass the baton from the physical world to the digital world.”
University of Oxford scientists have developed a gene therapy that has shown promise in treating choroideremia, a rare disorder that causes progressive vision loss, mostly in males.
Doctors tested the treatment method on six patients with choroideremia by injecting numerous healthy genes into the eye to replace missing ones in the retina. The purpose of this therapy is to hinder or prevent loss of sight, according to Oxford’s announcement.
Results varied for each participant. Two patients experienced a big improvement in vision that lasted for four years, but a decline occurred in the other untreated eye. Three separate patients maintained their vision in the treated eye over four years whereas the sixth recipient who was given a lower dose succumbed to vision decline in both eyes.
A nanoparticle commonly used in food, cosmetics, sunscreen and other products can have subtle effects on the activity of genes expressing enzymes that address oxidative stress inside two types of cells. While the titanium dioxide (TiO2) nanoparticles are considered non-toxic because they don’t kill cells at low concentrations, these cellular effects could add to concerns about long-term exposure to the nanomaterial.
Researchers at the Georgia Institute of Technology used high-throughput screening techniques to study the effects of titanium dioxide nanoparticles on the expression of 84 genes related to cellular oxidative stress. Their work found that six genes, four of them from a single gene family, were affected by a 24-hour exposure to the nanoparticles.
The effect was seen in two different kinds of cells exposed to the nanoparticles: human HeLa cancer cells commonly used in research, and a line of monkey kidney cells. Polystyrene nanoparticles similar in size and surface electrical charge to the titanium dioxide nanoparticles did not produce a similar effect on gene expression.
Lifeboat is all about how advances in science & technology can be use to improve humanity and ensure folks are informed. I also see this story as an opportunity for others to learn to improve humanity through sharing & hearing from a man who has been successful, met amazing people, and seen amazing things & places; and now shares his most important lesson of life.
Tom Brokaw spoke about his battle with incurable blood cancer in an emotional interview on Today Monday morning and how it has made him appreciate life more and brought him closer to some new friends.
Brokaw, 76, said he had met some incredible people also suffering from cancer, including a younger family friend who passed away last year.
‘He had a much more serious form of cancer than I did, but I was witness to his bravery and his optimism,’ said Brokaw.
Next time you go for a brain scan; you could actually see dissolvable electrodes.
Hmmm
Scientists at the University of Pennsylvania in a study funded by the Defense Advance Research Projects Agency (DARPA) are developing implantable electrodes for brain monitoring that melt away at a predetermined rate. The devices could come in handy for monitoring and treating certain neurophysiological disorders such as Parkinson’s, depression and chronic pain.
The electrodes, which are made from layers of silicon and a chemical element, molybdenum, dissolve at a known rate according to thickness. The devices can provide “continuous streams of data for guiding medical care over predetermined periods of time,” Brian Litt, senior co-author on the study and a professor of neurology, neurosurgery and bioengineering at UPenn, said in a statement.
The dissolvable electrodes also “eliminate the risks, cost, and discomfort associated with surgery to extract current devices used for post-operative monitoring,” Litt said. Scientists recently published their findings online in Nature Materials.