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Archive for the 'Health & longevity' Category

Nanotechnology drafts plant viruses for drug delivery

Posted by Jim Lewis on February 23rd, 2009

Plant viruses are a new addition to the long list of types of nanoparticles being investigated as next generation nanotech cancer therapies.

Controlling bone-forming cells through nanotechnology

Posted by Jim Lewis on February 9th, 2009

Nanotech may soon provide a solution for one of the more vexing problems in tissue engineering—how to control the differentiation of pluripotent or multipotent precursor cells into the specific cells needed to fix a specific problem.

Targeting brain cancer cells with nanotechnology makes them less invasive

Posted by Jim Lewis on January 30th, 2009

In new variation of ways to use nanotech to treat cancer, scientists have shown that using a scorpion toxin to target nanoparticles to brain cancer cells depletes the amount on the cancer cell surface of a protein required to make the cells invasive. From the National Cancer Institute’s Alliance for Nanotechnology in Cancer “Toxin-nanoparticle combo [...]

Oral anticancer therapy through nanotechnology?

Posted by Jim Lewis on January 22nd, 2009

An international team of investigators has demonstrated in mice a nanotech method of orally delivering an anticancer therapy that would normally have to be delivered by injection.

Nanotechnology method to shut down cancer inches toward clinical trials

Posted by Jim Lewis on January 20th, 2009

Having demonstrated a year ago an effective nanotech method for shutting down specific gene expression in a mouse model of colitis, a team of researchers at Tel Aviv University is preparing to test this method in clinical trials for blood, pancreatic, breast and brain cancers.

Update on promise of nanotechnology for radically extended life span

Posted by Jim Lewis on January 16th, 2009

The January issue of Life Extension Magazine offers a report on the eventual promise of medical nanobots.

Controlling the independent release of multiple drugs with nanotechnology

Posted by Jim Lewis on January 7th, 2009

Nanotech could make possible the controlled release within the patient of up to four different drugs by irradiation with different wavelengths of near-infrared radiation.

Interfacing with neurons using nanotechnology

Posted by Jim Lewis on January 1st, 2009

Research on the interactions between carbon nanotubes and neurons shows that electrical phenomena in nanotubes may lead to engineering interactions between nanomaterials and neurons.

Nanotechnology makes teeth too slippery for harmful bacteria

Posted by Jim Lewis on December 30th, 2008

Polishing teeth with silica nanoparticles produces much smoother surfaces than does polishing with larger silica particles, making it easier to remove harmful bacteria.

Nanotechnology-produced wires to swim through blood, attach to, and kill cancer cells

Posted by Jim Lewis on December 26th, 2008

Nanowerk News reports that an international nanotech collaboration of American and Korean scientists, funded by the Korean government, has developed multifunctional gold-coated nanowires that are designed to swim through the blood stream and attach to cancerous cells via antibodies against the cancer cells. Exposure to an electromagnetic field should heat the nanowires and destroy the [...]

Reading DNA sequences from single molecules of polymerase using nanotechnology

Posted by Jim Lewis on December 24th, 2008

A new nanotech method of DNA sequencing is 30,000 times faster than current DNA sequencing methods.

Targeting highly metastatic melanomas with nanotechnology

Posted by Jim Lewis on December 18th, 2008

Using a promising nanotech approach to deliver the RNA molecules, a type of nanoparticle described as a neutral liposome was administered to mice bearing melanoma tumors and found to cause a significant decrease in tumor growth and in the number of metastatic tumor colonies.

Tracking single molecules in living cells using nanotechnology

Posted by Jim Lewis on December 17th, 2008

Previously unknown spectral properties of carbon nanotubes functionalized with DNA have been exploited to create nanotech sensors that can simultaneously detect several different substances, in real time, within living cells, to single molecule sensitivity.

Nanotechnology advance toward individualized cancer treatments

Posted by Jim Lewis on December 11th, 2008

The effectiveness of treatment with multifunctional nanoparticles was studied using human breast tumors grown in rats lacking an immune system so that the variation in the effectiveness of treatment could be compared among individual breast tumors.

Nanotechnology delivers lethal dose of drug to prostate cancer cells

Posted by Jim Lewis on December 4th, 2008

In laboratory tests, nanoparticles that include a small molecule of nucleic acid that binds to a target molecule on prostate cancer cells were used to carry a lethal dose of the drug into the cancer cells without affecting cells lacking the cancer-specific target.

Nanotechnology-based assay for cancer proteins increases sensitivity a thousand fold

Posted by Jim Lewis on December 1st, 2008

A nanotech assay for trace levels of proteins associated with cancer is a thousand fold more sensitive than are current assays.

Texas invests in nanotechnology for delivery of anti-cancer drug

Posted by Jim Lewis on November 21st, 2008

A startup company has now received a $3.5 million grant from the state of Texas to commercialize the nanotech delivery of a drug for cancer treatment.

Nanotechnology minimizes problems with medical implants

Posted by Jim Lewis on November 12th, 2008

Nanotech membranes made of nanoporous alumina coated with diamond-like carbon films promise to minimize problems with medical implants.

Using nanotechnology to build backpacks for cells

Posted by Jim Lewis on November 10th, 2008

A patch consisting of three layers of polymers can be loaded with nanoparticles and attached to living cells to give them nanotech backpacks.

Nanotechnology shrinks tumors by targeting two genes

Posted by Jim Lewis on October 31st, 2008

Nanoparticles can introduce two very promising, but easily degraded, therapeutic molecules into a laboratory model of human skin, and together they are much more effective than either is alone is slowing the development of deadly melanoma skin cancer.