Science news articles about 'Silica particles'

  • Silica particles may improve drug delivery

    RICHLAND, Wash., May 25 (UPI) -- U.S. scientists say they've found packaging anti-cancer drugs in chemically modified silica particles hikes the drugs' ability to fight skin cancer in mice.
  • Nanoparticle toxicity doesn't get wacky at the smallest sizes

    ... smallest nano-sized silica particles used in biomedicine and engineering likely won't cause ... to cells the smaller the particles get. Thrall presented this toxicology data on amorphous silica nanoparticles ...
  • Nanoparticle Toxicity Doesn't Get Wacky At The Smallest Sizes

    ... smallest nano-sized silica particles used in biomedicine and engineering likely won't cause ... . The researchers concluded this by using total surface area as a measure of dose, rather than particle mass or number ...
  • Designing probiotics that ambush gut pathogens

    ... technologies in which synthetic receptors were displayed on inert silica particles. They are also more cost effective, as the bacteria can be grown cheaply in large-scale fermenters. "We initially developed ...
  • Coal Is Linked to Cancer in China Province

    Scientists say that silica particles released during cooking may be responsible for high rates of lung cancer in some women in China.
  • Watching crystals grow may lead to faster electronic devices

    ... what their "atoms"--actually, micron-sized silica particles suspended in fluid--did as they crystallized ... laterally from one site on the island to another. Because the particles have to traverse this distance in a Brownian fashion, it can take ...
  • Building a better nanoparticle reactor

    ... feed lines pushed sand-like silica particles into the top of the noisy reactor, a fine ... of the reactor, the stream of silica feedstock is completely vaporized, forming the miniscule particles as it exits and cools ...
  • Sandia and UNM lead effort to destroy cancers

    ... . The researchers continue to optimize the size of the porous silica particle, which is formed by aerosolizing a precursor solution ... the smaller sizes." Also of importance to the circulation time of the particle are its electrical charge and hydrophobicity [avoidance of water ...
  • A new approach to scratch resistance

    ... resistant to scratching than glass. Other researchers have added silica particles measuring just nanometers across ... team, for the first time, has found a way to analyze the particle-polymer interactions of such coatings at the nanoscale, which could facilitate ...
  • Light touch keeps a grip on delicate nanoparticles

    ... of Standards and Technology (NIST) have extended the trapped particles' useful life more than tenfold. This new approach, which one researcher ... times longer than had been seen in previous experiments. Silica particles 350 nanometers in diameter lasted ...
  • Newly modified nanoparticle opens window on future gene editing technologies

    ... . An additional modification-gold plating the entire silica particle prior to packing-improved DNA ... from working with Lin to make this next generation particle a reality. "We would have been unable to work out anything ...

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