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Protein 'passport' helps nanoparticles get past immune system

The body's immune system exists to identify and destroy foreign objects, whether they are bacteria, viruses, flecks of dirt or splinters. Unfortunately, nanoparticles designed to deliver drugs, and implanted devices like pacemakers or artificial joints, are just as foreign and subject to the same response. Now, rersearchers have figured out a way to provide a "passport" for such therapeutic devices, enabling them to get past the body's security system.

Posted: Feb 21st, 2013

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Titanium dioxide nanoreactor

Researchers have developed a synthesis to produce nanoparticles at room temperature in a polymer network. Their analysis has revealed the crystalline structure of the nanoparticles. This represents a major step forward in the usage of polymeric nanoreactors since, until recently, the nanoparticles had to be thoroughly heated to get them to crystallize.

Posted: Feb 21st, 2013

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Supramolecular velcro for underwater adhesion

When gluing things together, both surfaces usually need to be dry. Gluing wet surfaces or surfaces under water is a challenge. Korean scientists have now introduced a completely new concept. They were able to achieve reversible underwater adhesion by using supramolecular "velcro".

Posted: Feb 21st, 2013

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Photonen im Paartanz

Photonen, die in ihrer Eigenschaften absolut identisch sind, sind ein Schlüssel für Quantennetzwerke und Quantencomputer. Einem internationalen Wissenschaftler-Team ist jetzt die Produktion solcher Photonen auf Knopfdruck gelungen.

Posted: Feb 21st, 2013

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Photo-immunotherapy boosts nanoparticle delivery to tumors

Hisataka Kobayashi and his colleagues at NCI's Center for Cancer Research employed a technique they call photo-immunotherapy, which uses an antibody linked to a light-sensitive compound or photosensitizer, to increase the leakiness of tumor-associated blood vessels.

Posted: Feb 20th, 2013

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Nanotechnology may enable earlier cancer diagnosis

Sangeeta Bhatia, a project leader at the MIT-Harvard Center of Cancer Nanotechnology Excellence, led the team that developed nanoparticles that can home to a tumor and interact with cancer proteins to produce thousands of biomarkers, which can then be easily detected in the patient's urine.

Posted: Feb 20th, 2013

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The nano-channel that disentangles knots

Scientists have considered a specific DNA filament model and examined its behavior within a nano-channel. They observed that by varying the channel's width it is possible to drastically change the quantity and complexity of the knots formed by the DNA.

Posted: Feb 20th, 2013

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