A novel approach published in Science by a collaborative team of researchers from the Wyss Institute, Arizona State University, and Autodesk for the first time enables the design of complex single-stranded DNA and RNA origami that can autonomously fold into diverse, stable, user-defined structures.
A NIST team used a standard machining technique to fabricate a 'nanofluidic staircase' that allows precise measurement of the size of nanoparticles in a liquid.
In a paper in Nature Scientific Reports, researchers at Worcester Polytechnic Institute (WPI) show how optical tweezers, which use beams of light to grip and manipulate tiny objects, including cells, can be miniaturized, opening the door to creating devices small enough to be inserted into the bloodstream to trap individual cancer cells and diagnose cancer in its earliest stages. The researchers replaced bulky lenses with optical fibers to make the device smaller and more portable.
Scientists have created computationally designed protein assemblies, that display some functions normally associated with living things, in the search for ways to transport therapeutic cargo into specific types of cells without using viruses as vehicles. These encapsulate their own RNA genomes and evolve new traits in complex environments. They are synthetic versions of the protein shells that viruses use to protect and deliver materials. The synthetic proteins evolved better RNA packaging, resistance against degrading enzymes in blood and longer circulation time.
A team of Arizona State and Harvard scientists has invented a major new advance in DNA nanotechnology. Dubbed 'single-stranded origami,' their new strategy uses one long, thin noodle-like strand of DNA, or its chemical cousin RNA, that can self-fold -- without even a single knot -- into the largest, most complex structures to date. The strands forming these structures can be made inside living cells, opening up the potential for nanomedicine.
To prevent water and ice from making our shoes soggy, frosting our car windows and weighing down power lines with icicles, scientists have been exploring new coatings that can repel water. Now one team has developed a way to direct where the water goes when it's pushed away. Their report appears in the journal ACS Applied Materials & Interfaces.
The 2009 film 'Avatar' created a lush imaginary world, illuminated by magical, glowing plants. Now researchers are starting to bring this spellbinding vision to life to help reduce our dependence on artificial lighting. They report in ACS' journal Nano Letters a way to infuse plants with the luminescence of fireflies.
Researchers at Aalto University have developed a biosensor that enables creating a range of new easy-to-use health tests similar to home pregnancy tests. The plasmonic biosensor can detect diseased exosomes even by the naked eye. A rapid analysis by biosensors helps recognize inflammatory bowel diseases, cancer and other diseases rapidly and start relevant treatments in time. In addition to using discovery in biomedicine, industry may use advanced applications in energy.
How sensitive is the human sense of touch? Sensitive enough to feel the difference between surfaces that differ by just a single layer of molecules, a team of researchers at the University of California San Diego has shown. Researchers say this fundamental knowledge will be useful for developing electronic skin, prosthetics that can feel, advanced haptic technology for virtual and augmented reality and more.
Many people don't worry about the security of their personal information until it's too late. And protecting data is even more important for military personnel, whose lives could be in danger if some types of information were to get into the wrong hands. Now, one group reports in ACS Nano a new way to protect data, especially when it is subjected to extreme environmental conditions.