Cambridge, Mass. - November 26, 2012 - Now you see it, now you don't. A new device invented at the Harvard School of Engineering and Applied Sciences (SEAS) can absorb 99.75% of infrared light that shines on it. When activated, it appears black to infrared cameras. Composed of just a 180-nanometer-thick layer of vanadium dioxide (VO2) on top of a sheet of sapphire, the device reacts to temperature changes by reflecting dramatically more or less infrared light.
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More news from Harvard University
Harvard Study Offers First-ever Look at How NCAA Concussion Guidelines Are Followed
Though most NCAA colleges and universities have created programs to help athletes deal with concussions, a new Harvard study has found that, when it comes to specific components of those plans, many institutions still lag behind accepted standards.
From Human Embryonic Stem Cells to Billions of Human Insulin Producing Cells
Harvard stem cell researchers today announced that they have made a giant leap forward in the quest to find a truly effective treatment for type 1 diabetes, a condition that affects an estimated three million Americans at a cost of about $15 billion annually: With human embryonic stem cells as a starting point, the scientists are for the first time able to produce, in the kind of massive quantities needed for cell transplantation and pharmaceutical purposes, human insulin-producing beta cells equivalent in most
Scientists Develop Barcoding Tool for Stem Cells
A 7-year-project to develop a barcoding and tracking system for tissue stem cells has revealed previously unrecognized features of normal blood production: New data from Harvard Stem Cell Institute scientists at Boston Children's Hospital suggests, surprisingly, that the billions of blood cells that we produce each day are made not by blood stem cells, but rather their less pluripotent descendants, called progenitor cells. The researchers hypothesize that blood comes from stable populations of different long-lived progenitor cells that are responsible for giving rise
Soft Robotics 'Toolkit' Features Everything a Robot-maker Needs
A new resource unveiled today by researchers from several Harvard University labs in collaboration with Trinity College Dublin provides both experienced and aspiring researchers with the intellectual raw materials needed to design, build, and operate robots made from soft, flexible materials.
For Electronics Beyond Silicon, a New Contender Emerges
Cambridge, Mass. – September 16, 2014 – Silicon has few serious competitors as the material of choice in the electronics industry. Yet transistors, the switchable valves that control the flow of electrons in a circuit, cannot simply keep shrinking to meet the needs of powerful, compact devices; physical limitations like energy consumption and heat dissipation are too significant.
|New Understanding of How Materials Change When Rapidly Heated|
By University of Southampton
Collaboration between the University of Southampton and the University of Cambridge has made ground-breaking advances in our understanding of the changes that materials undergo when rapidly heated.
|Strain Can Alter Materials' Properties|
By Massachusetts Institute of Technology
In the ongoing search for new materials for fuel cells, batteries, photovoltaics, separation membranes, and electronic devices, one newer approach involves applying and managing stresses within known materials to
|Unlocking Jams in Fluid Materials|
In a study recently published in European Physical Journal E (EPJE), a German scientist constructed a theoretical model to understand how to best avoid jamming of soft matter that
|Penn Researchers 'Design for Failure' with Model Material|
By University of Pennsylvania
When deciding what materials to use in building something, determining how those materials respond to stress and strain is often the first task. A material's macroscopic, or bulk, properties
NRL Robotic Loader System Achieves Composite Material Testing Milestone
By Naval Research Laboratory
|New Absorber Will Lead to Better Biosensors|
By Northwestern University
Biological sensors, or biosensors, are like technological canaries in the coalmine. By converting a biological response into an optical or electrical signal, they can alert us to dangers in
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