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مشاهدة النسخة كاملة : Na**particle Mimics Viruses to Evade Immune System (VIDEO)


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05-13-2014, 11:27 PM
Na**particle Mimics Viruses to Evade Immune System (VIDEO)
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The potential for DNA-based na**tech**logy is immense, and in medicine it can have a revolutionary impact. Yet, getting DNA na**devices to escape the scrutiny of the immune system is a challenge for practical application of the tech**logy in clinical practice. Researchers at Harvard’s Wyss Institute developed a na**particle that mimics a virus,*which*the immune system ig**res, while carrying a DNA payload inside.

They essentially replicated the external casing that a real virus uses to protect its own ge**me. They put a layer of phospholipid around*their DNA na**devices, which were initially folded into octahedrons. The phospholipids were attached to the DNA by adding spots to the genetic material where the lipids could grab on. This then created a foundation for forming a complete bilayer membrane around the DNA payload, which resulted in particles that successfully evade the immune system.

Here are the Wyss researchers describing their work:





Wyss Institute: Cloaked DNA na**devices survive pilot mission… (http://wyss.harvard.edu/viewpressrelease/150/cloaked-dna-na**devices-survive-pilot-mission)

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