Amid rising evidence that additives designed to improve plastics also disrupt sex hormones, a Rutgers laboratory trial shows that plastic itself can do likewise when inhaled at moderate levels.
Apr 26, 2023
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Current treatment for head and neck cancer can have debilitating side-effects, but new research combining robotics, nanoparticles, ultrasound and lasers could treat it without chemo- or radiotherapy.
Oct 2, 2018
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While most efforts to understand the brain focus on new technologies to magnify small anatomical features, engineers at the MIT-based Center for Brains, Minds and Machines have found a way to make brains physically bigger.
Jan 16, 2015
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(Medical Xpress)—Every living cell's surface has a protein-embedded membrane that's covered in polysaccharide chains – a literal sugar coating. On cancer cells, this coating is especially thick and pronounced.
Jun 26, 2014
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Antibodies are often the first line of defense against the body's invaders. Built to recognize and attack foreign bacteria and viruses, antibody molecules are released by cells to do battle with microbial hostiles as part ...
Nov 19, 2013
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A chemical component present in the nightshade family of plants is one of the world's most tenaciously addictive substances. It is the nicotine contained in tobacco and found in high concentrations in cigarettes. Smoking ...
Jul 2, 2013
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Pioneering biophotonics technology developed at Northwestern University is the first screening method to detect the early presence of ovarian cancer in humans by examining cells easily brushed from the neighboring cervix ...
Apr 22, 2013
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Osteoarthritis, which affects at least 20 percent of adults in the United States, leads to deterioration of cartilage, the rubbery tissue that prevents bones from rubbing together. By studying the molecular properties of ...
Apr 17, 2013
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Osteoarthritis is the most common joint disorder, affecting about one-third of older adults, and currently there is no cure. A study published by Cell Press April 2nd in the Biophysical Journal reveals how the nanoscale biomechanical ...
Apr 2, 2013
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In a breakthrough, researchers at the International Center for Materials Nanoarchitectonics (MANA, Japan) demonstrate for the first time the key features in the neuroscience and psychology of memory by a AgS2 synapse.
Sep 15, 2011
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The nanoscopic scale usually refers to structures with a length scale applicable to nanotechnology, usually cited as 1-100 nanometers. The nanoscopic scale is roughly speaking a lower bound to the mesoscopic scale for most solids.
For technical purposes, the nanoscopic scale is the size at which the expected fluctuations of the averaged properties due to the motion and behavior of individual particles can no longer be reduced to below some desirable threshold (often a few percent), and must be rigorously established within the context of any particular problem.
The 'nanoscopic scale' is sometimes marked as the point where the properties of a material change; above this point, the properties of a material are caused by 'bulk' or 'volume' effects, namely which atoms are present, how they are bonded, and in what ratios. Below this point, the properties of a material change, and while the type of atoms present and their relative orientations are still important, 'surface area effects', also referred to as quantum effects, become more apparent-these effects are due to the geometry of the material (how thick it is, how wide it is, etc), which, at these low dimensions, can have a drastic effect on quantized states, and thus the properties of a material.
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