Raman spectroscopy, a method that uses scattered laser light to identify molecules, has become increasingly critical to identify and characterize specimens on the molecular-scale. However, the technique has a limited ability to identify molecules in diluted specimens due to low signal yield. To address this issue, a team of scientists from the University of Hyderabad [...]
By chipping away at a viral protein, Rice University scientists have discovered a path toward virus-like, nanoscale devices that may be able to deliver drugs to cells. The protein is one of three that make up the protective shell, called the capsid, of natural adeno-associated viruses (AAV). By making progressively smaller versions of the protein, [...]
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An international team of researchers has created new antiviral nanoparticles that show potential for outperforming current antiviral drugs. Current broad-spectrum antiviral drugs ward off viruses but don't actually destroy them, whereas the newly designed nanoparticles have been shown the ability to kill off harmful viruses in testing. How the nanoparticles work The virus-eliminating nanoparticles mimic [...]
Cancer is often referred to as “smart,” and this term often refers to the ability of these cells to proliferate without purpose or restraint. The ability of cancer cells to develop multidrug resistance (MDR), a major problem that patients can face, making treatment against this disease even more elusive. In an effort to combat both [...]
Researchers have examined pancreatic cancer cells and discovered an inverse correlation between the signatures of miR-34a, a tumour suppressant, and PLK1, a known oncogene. The levels of miR-34a were low in pancreatic cancer mouse models, while the levels of the oncogene were high. This correlation made sense for such aggressive cancer. The research team now [...]
A team of researchers at the University of California San Diego has developed macrophage “nanosponges” that can safely absorb and remove molecules from the bloodstream that are known to trigger sepsis. These macrophage nanosponges, which are nanoparticles cloaked in the cell membranes of macrophages, have so far improved survival rates in mice with sepsis. This [...]
An electricity-conducting, environment-sensing, shape-changing machine the size of a human cell? Is that even possible? Cornell physicists Paul McEuen and Itai Cohen not only say yes, but they’ve actually built the “muscle” for one. With postdoctoral researcher Marc Miskin at the helm, the team has made a robot exoskeleton that can rapidly [...]
Carbon nanotubes bound for electronics not only need to be as clean as possible to maximize their utility in next-generation nanoscale devices, but contact effects may limit how small a nano device can be, according to researchers at the Energy Safety Research Institute (ESRI) at Swansea University in collaboration with researchers at Rice University. Carbon [...]
In trying to bring brain-like (neuromorphic) computing closer to reality, researchers have been working on the development of memory resistors, or memristors, which are resistors in a circuit that 'remember' their state even if you lose power. Today, most computers use random access memory (RAM), which moves very quickly as a user works but does [...]
