Vaccine-Delivery Patch With Dissolving Microneedles Eliminates ‘Sharps,’ Boosts Protection

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An array of 36 dissolving microneedles is shown here on a fingertip for size comparison.

A new vaccine-delivery patch based on hundreds of microscopic needles that dissolve into the skin could allow persons without medical training to painlessly administer vaccines — while providing improved immunization against diseases such as influenza.

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Some Germs Are Good for You: Surface Bacteria Maintain Skin’s Healthy Balance

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Bacteria growing in a cell culture.

On the skin’s surface, bacteria are abundant, diverse and constant, but inflammation is undesirable. Research at the University of California, San Diego School of Medicine now shows that the normal bacteria living on the skin surface trigger a pathway that prevents excessive inflammation after injury.

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How Stem Cells Make Skin

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In normal skin (left), the stem cells at the base, shown in green, differentiate into skin cells, shown in red.

Stem cells have a unique ability: when they divide, they can either give rise to more stem cells, or to a variety of specialised cell types. In both mice and humans, a layer of cells at the base of the skin contains stem cells that can develop into the specialised cells in the layers above. Scientists at the European Molecular Biology Laboratory (EMBL) in Monterotondo, in collaboration with colleagues at the Centro de Investigaciones Energéticas, Medioambientales y Tecnologicas (CIEMAT) in Madrid, have discovered two proteins that control when and how these stem cells switch to being skin cells. Continue reading… “How Stem Cells Make Skin”

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Electronic Nose Created To Detect Skin Vapors

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The functioning and devices of the “electronic nose”:

A team of researchers from the Yale University (United States) and a Spanish company have developed a system to detect the vapours emitted by human skin in real time. The scientists think that these substances, essentially made up of fatty acids, are what attract mosquitoes and enable dogs to identify their owners

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Synthetic Biology: Gene Therapy Gets Under The Skin

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apply skin cream in order to stimulate the gene into action

Vaseline, a known molecule from apples and a gene network encapsulated in algal gelatin are the components of a possible gene therapy which literally gets under the skin.

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