Lifeboat Foundation

A new microchip technology capable of optically transferring data could solve a severe bottleneck in current devices by speeding data transfer and reducing energy consumption by orders of magnitude, according to an article published in the April 19, 2018 issue of Nature.

Researchers from Boston University, Massachusetts Institute of Technology, the University of California Berkeley and University of Colorado Boulder have developed a method to fabricate silicon chips that can communicate with light and are no more expensive than current chip technology. The result is the culmination of a several-year-long project funded by the Defense Advanced Research Project Agency that was a close collaboration between teams led by Associate Professor Vladimir Stojanovic of UC Berkeley, Professor Rajeev Ram of MIT, and Assistant Professor Milos Popovic from Boston University and previously CU Boulder. They collaborated with a semiconductor manufacturing research team at the Colleges of Nanoscale Science and Engineering (CNSE) of the State University of New York at Albany.

The electrical signaling bottleneck between current microelectronic chips has left light communication as one of the only options left for further technological progress. The traditional method of data transfer-electrical wires-has a limit on how fast and how far it can transfer data. It also uses a lot of power and generates heat. With the relentless demand for higher performance and lower power in electronics, these limits have been reached. But with this new development, that bottleneck can be solved.

Continue reading “Researchers illuminate the path to a new era of microelectronics” »

This could be used for hydrogen storage.

Of the four states of matter, gases are the hardest to pin down. Gas molecules move quickly and wildly and don’t like to be confined. When confined, heat and pressure build in the container, and it doesn’t take long before the gas blows the lid off the place, literally. Luckily, gases are superficial. Provide them with an attractive internal surface area, and they’ll pin themselves down in no time. No, it’s not love at first sight, it’s adsorption.

“Adsorption is the processes of gas pinning to the surface of another material—the inside walls of a container, for example,” says Chris Wilmer, assistant professor in Pitt’s Department of Chemical and Petroleum Engineering. “When adsorption occurs, the gas molecules stop bumping into each other, reducing pressure. So, by increasing a container’s internal surface area, we can store more gas in less space.”

Continue reading “Full of hot air and proud of it” »

MIT engineers have developed a continuous manufacturing process that produces long strips of high-quality graphene.

The team’s results are the first demonstration of an industrial, scalable method for manufacturing high-quality graphene that is tailored for use in membranes that filter a variety of molecules, including salts, larger ions, proteins, or nanoparticles. Such membranes should be useful for desalination, biological separation, and other applications.

Continue reading “Scalable manufacturing process spools out strips of graphene for use in ultrathin membranes” »

With advances in stem cell research and nanotechnology helping us fight illnesses from heart disease to superbugs, is the fusion of biology and technology speeding us towards a sci-fi future — part human, part synthetic?

In Ridley Scott’s seminal blockbuster Blade Runner, humanity has harnessed bio-engineering to create a race of replicants that look, act and sound human — but are made entirely from synthetic material.

We may be far from realising that sci-fi future, but synthetics are beginning to have a profound effect on medicine.

Human stem cells have shown potential in medicine as they can transform into various specialized cell types such as bone and cartilage cells. The current approach to obtain such specialized cells is to subject stem cells to specialized instructive protein molecules known as growth factors. However, use of growth factors in the human body can generate harmful effects including unwanted tissue growth, such as a tumor.

Researchers at Texas A&M University have explored a new class of clay nanoparticles that can direct stem cells to become bone or cartilage cells.

Dr. Akhilesh Gaharwar, an assistant professor in the Department of Biomedical Engineering, and his students have demonstrated that a specific type of two-dimensional (2-D) nanoparticles, also known as nanosilicates, can grow bone and cartilage tissue from stem cells in the absence of growth factors. These nanoparticles are similar to flaxseed in shape, but 10 billion times smaller in size. Their work, “Widespread changes in transcriptome profile of human mesenchymal stem cells induced by two-dimensional nanosilicates,” has been published in Proceedings of the National Academy of Sciences this week.

Continue reading “Flaxseed-like particles can now grow bone, cartilage tissues for humans” »

Researchers at the University of Washington have designed a convenient and natural product that uses proteins to rebuild tooth enamel and treat dental cavities.

The research finding was first published in ACS Biomaterials Science and Engineering.

“Remineralization guided by peptides is a healthy alternative to current dental health care,” said lead author Mehmet Sarikaya, professor of materials science and engineering and adjunct professor in the Department of Chemical Engineering and Department of Oral Health Sciences.

Continue reading “Peptide-based biogenic dental product may cure cavities” »

Google today announced a pair of new artificial intelligence experiments from its research division that let web users dabble in semantics and natural language processing. For Google, a company that’s primary product is a search engine that traffics mostly in text, these advances in AI are integral to its business and to its goals of making software that can understand and parse elements of human language.

The website will now house any interactive AI language tools, and Google is calling the collection Semantic Experiences. The primary sub-field of AI it’s showcasing is known as word vectors, a type of natural language understanding that maps “semantically similar phrases to nearby points based on equivalence, similarity or relatedness of ideas and language.” It’s a way to “enable algorithms to learn about the relationships between words, based on examples of actual language usage,” says Ray Kurzweil, notable futurist and director of engineering at Google Research, and product manager Rachel Bernstein in a blog post. Google has published its work on the topic in a paper here, and it’s also made a pre-trained module available on its TensorFlow platform for other researchers to experiment with.

The first of the two publicly available experiments released today is called Talk to Books, and it quite literally lets you converse with a machine learning-trained algorithm that surfaces answers to questions with relevant passages from human-written text. As described by Kurzweil and Bernstein, Talk to Books lets you “make a statement or ask a question, and the tool finds sentences in books that respond, with no dependence on keyword matching.” The duo add that, “In a sense you are talking to the books, getting responses which can help you determine if you’re interested in reading them or not.”

Continue reading “Google’s latest AI experiments let you talk to books and test word association skills” »

Okay, if you’ve got some spare time, check out this amazing website called Stuff in Space. It’s a simulation of every satellite (alive or dead), space station, and large piece of space junk orbiting the Earth right now.

You can zoom in and out, rotate the Earth and its satellites around. Pick any one object and discover more information about it. Or just leave it running and watch all the objects buzz around in real time. Humans have been busy launching a lot of stuff, and it’s only going to increase.

The simulation was made by James Yoder, an incoming Electrical and Computer Engineering freshman at the University of Texas at Austin, and it’s based on data supplied by Space Track, which is a service of the Joint Space Operations Center. They have a bunch of handy data feeds and APIs that you can use track orbital objects, but I’ve never seen anything as creative as this.

Continue reading “This is the COOLEST! Everything that’s Orbiting the Earth Right Now” »

DIYers can bioprint living human organs by modifying an off-the-shelf 3D printer costing about $500, announce researchers who published the plans as open source, enabling anyone to build their own system. [This article first appeared on LongevityFacts. Author: Brady Hartman. ]

Scientists at Carnegie Mellon University (CMU) developed a low-cost 3D bioprinter to print living tissue by modifying a standard desktop 3D printer and released the design as open source so that anyone can build their own system.

Continue reading “New DIY 3D Bioprinter to Create Living Human Organs” »