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Article: Microscopic glass ribbons provide molecular labels. (Materials Science).(Brief Article)
- Article from:
- Science News
- Article date:
- February 8, 2003
CopyrightCOPYRIGHT 2003 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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A new type of barcode is too small to see with the naked eye, yet it holds big promise for biomedical research, law enforcement, and everyday life, say researchers.
The fluorescent tagging devices are short glass ribbons just 100 micrometers long and 20 [micro]m wide. They contain stripes reminiscent of the black-and-white barcodes on milk cartons or cereal boxes, but these new barcodes tag large biomolecules, such as DNA. The labels become visible under a microscope when they're hit with a wavelength of light that makes them fluoresce.
Other researchers have created molecular tags from fluorescing particles called quantum dots (SN: 7/7/01, p. 7) or tiny ...
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Article: MAD world: a claustrophobic, disused folly is transformed into a ...
The Architectural Review;
February 1, 2009 ;
700+ words
... ... incised with angular cuts, 600mm wide, which read as a stack of interlocking cantilevers. The linear precision of these glass ribbons contrasts with the expansive fenestration of the upper floors. A building that was once a hermetic block has been opened ...
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