Monday, October 30, 2006
Modification Turns Ultra-Short Nanotubes into Molecule-Like Drug Capsules
Investigators has developed a method for modifying ultra-short carbon nanotubes so that they do not aggregate into bundles, one of the major problems in using this material in biomedical applications.
The researchers note that ultra-short carbon nanotubes can be filled with drugs and imaging agents.
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Monday, October 16, 2006
The researchers note that ultra-short carbon nanotubes can be filled with drugs and imaging agents.
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Novel carbon nanotube-based nanoelectromechanical switch
Scientists from Northwestern University have demonstrated a novel carbon nanotube-based nanoelectromechanical switch exhibiting bistability based on current tunneling. The device could help advance technological developments in memory chips and electronic sensing devices.
Carbon nanotubes to detect defects in composites
Two University of Delaware researchers have discovered a means to detect and identify damage within advanced composite materials by using a network of tiny carbon nanotubes, which act in much the same manner as human nerves.
Making Carbon Nanotubes Commercially Viable
Current methods for synthesizing carbon nanotubes produce mixtures of tubes that differ in their diameter and twist. Variations in electronic properties arise from these structural differences, resulting in carbon nanotubes that are unsuitable for most proposed applications.
Now, a new method developed at Northwestern University for sorting single-walled carbon nanotubes promises to overcome this problem. The method works by exploiting subtle differences in the buoyant densities of carbon nanotubes as a function of their size and electronic behavior.
Now, a new method developed at Northwestern University for sorting single-walled carbon nanotubes promises to overcome this problem. The method works by exploiting subtle differences in the buoyant densities of carbon nanotubes as a function of their size and electronic behavior.
Carbon Nanotubes Yield Sensitive Detection Method for Cancer Markers
In an attempt to increase the sensitivity of cancer biomarker detection and to decrease the need for large samples from which to detect those molecules, a multi-institutional research team has shown that a “forest” of single-walled carbon nanotubes can be used to detect lower levels of the prostate specific antigen (PSA) than is possible using the current commercial assay.
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