Tag: "nanotube" at biology news
Brightening prospects of using fluorescent nanotubes in medical applications
... and other tissue is transparent – that allows the nanotube
light to stand out. Nanotubes are made entirel...An example of the possible medical applications of nanotube
fluorescence is a collaboration that Hertel and Associate Professor of Biomedical Research Duco Jans...
The longest carbon nanotubes you've ever seen
... still slightly less than 2 centimeters long, each nanotube
is 900,000 times longer than its diameter. The fi...port of the carbon 'building blocks' to the carbon nanotube
growth zone," said Shanov. The carbon nanotubes are extremely long compared to predecessors--the ...
Cells selectively absorb short nanotubes
...hurdle in outlining the parameters contributing to nanotube
toxicity is to prepare well-defined and characterized nanotube
samples, as they typically contain a distribution of lengths, diameters, twists and impurities. T...
Nanotubes used for first time to send signals to nerve cells
...e Journal of Nanoscience and Nanotechnology, these nanotube
films could potentially serve as an electrical int...that may be used to guide cell growth or customize nanotube
electrical properties, to cells cultured on unmodified "native" carbon nanotubes and conventional ti...
Stable polymer nanotubes may have a biotech future
Editor : See how a nanotube
is created in this cool movie Scientists at th...al for commercial applications--and forming sturdy nanotube
network structures. First the researchers made tiny, fluid-filled spherical containers with bi-laye...
Carbon nanotubes that detect disease-causing mutations developed by Pitt researcher
...s in order to confirm that DNA had attached to the nanotube
surfaces and was subsequently hybridized, or match...e have found that electrical measurement of carbon nanotube
devices produce sensor results that are comparable to state-of-the-art optical techniques," Star sai...
Carbon nanotube absorption measured in worms, cancer cells
... cancer cells called HeLa cells, and also measured nanotube
uptake in an earthworm and an aquatic type of worm. The findings were presented Sunday at the 231st American Chemical Society National Meeting in Atlanta. Co-authors of the presentation are graduate student Elijah Petersen and postdoctoral research...
Nanoparticles, nanoshells, nanotubes: How tiny specks may provide powerful tools against cancer
...(IGF1R) of the cancer cell and are attached to the nanotube
?bind to the cancer cell surface, they produce a specific change in the electrical conductivity," Panchapakesan explains. The scientists found a "spike" in current with the MCF7 cells because it correlated with the greater IGF1R expression. "The t...
University of Delaware researchers develop cancer 'nanobomb'
...ng microsurgery. An advantage over other carbon nanotube
treatments being considered by scientists is that ...effectively clear the cell debris and the exploded nanotube
along with it. Other treatments retain the carbon nanotubes and nanoparticles intact. If the mate...
Scientists develop nanotech-laser treatment that kills cancer cells without harming healthy tissue
...be, and the results are dramatic. Electrons in the nanotube
become excited and begin releasing excess energy i...For example, we can attach an antibody to a carbon nanotube
to target a particular kind of cancer cell." One example is lymphoma, or cancer of the lymphatic sy...
Modifications render carbon nanotubes nontoxic
...ations could dramatically reduce cytotoxicity. The nanotube
study found similar results. In both cases, the researchers identified specific alterations that reduce toxicity. Cytotoxicity refers to toxic effects on individual cells. In cytotoxicological studies, identical cell cultures are exposed to various ...
Nanotubes inspire new technique for healing broken bones
...nts the way to a possible new direction for carbon nanotube
applications, in the medical treatment of broken bones," says Leonard Interrante, Ph.D., editor of Chemistry of Materials and a professor in the department of chemistry and chemical biology at Rensselaer Polytechnic Institute in Troy, N.Y. "This type...
Researchers Create DNA-Based Sensors for Nano-Tongues and Nano-Noses
...cule." Given the size of such sensors each carbon nanotube
is about a billionth of a meter wide, Johnson and ...tatic variations in their environment, whether the nanotube
is in a liquid or in air. "When the DNA portion of the nanosensor binds to a target molecule, there...
'Gadonanotubes' greatly outperform existing MRI contrast agents
... Lon Wilson, professor of chemistry at Rice. "Each nanotube
will hold more gadolinium atoms than a buckyball, so we expected them to be more effective agents. But they are actually much, much better than we anticipated, so much so that no existing theory can explain how they work." Wilson and colleagues use ...