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03-25-2017, 04:00 PM
New Test Identifies Blood Type in Seconds
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Scientists working at the*Third Military Medical University in Chongqing, China have developed a tech**logy to quickly identify a blood sample’s blood type. It relies on using antibodies that target A and B antigens that give blood its type, and a dye that is activated when the antibodies are in attack mode. The same was done for the D antigen, which gives the plus or minus to the blood type.
The sample is placed on a plate with a combination of antibody and dye, and the color of the plate changes depending on if a reaction is occurring. It stays brown if **thing is happening.
A single test takes only 30 seconds to provide a result, which can be highly useful in emergency situations in which transfusion needs to be initiated as soon as possible. The team tested the technique on over 3,000 k**wn blood samples, demonstrating an accuracy of 99.9%.
Study in Science Translational Medicine:*A dye-assisted paper-based point-of-care assay for fast and reliable blood grouping… (http://stm.sciencemag.org/content/9/381/eaaf9209.full)
Image caption:*(A) ABO forward strip, (B) F&R assay, and (C) ABO and Rh group multiplex antigen assays. I and II represent the forward blood-grouping observation *******; III and IV represent the reverse blood-grouping observation *******. The observation zone is located between the two dotted lines as shown in the platforms of the ABO and Rh group assays (C). A strip without antibody (BCG only) was used for quality control (QC).
(hat tip: New Scientist (https://www.newscientist.com/article/2124803-o-my-paper-strip-test-determines-blood-type-in-just-30-seconds/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=health&campaign_id=RSS%7CNSNS-health))
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http://www.medgadget.com/wp-content/uploads/2017/03/blood-type-analysis-chart.jpg
Scientists working at the*Third Military Medical University in Chongqing, China have developed a tech**logy to quickly identify a blood sample’s blood type. It relies on using antibodies that target A and B antigens that give blood its type, and a dye that is activated when the antibodies are in attack mode. The same was done for the D antigen, which gives the plus or minus to the blood type.
The sample is placed on a plate with a combination of antibody and dye, and the color of the plate changes depending on if a reaction is occurring. It stays brown if **thing is happening.
A single test takes only 30 seconds to provide a result, which can be highly useful in emergency situations in which transfusion needs to be initiated as soon as possible. The team tested the technique on over 3,000 k**wn blood samples, demonstrating an accuracy of 99.9%.
Study in Science Translational Medicine:*A dye-assisted paper-based point-of-care assay for fast and reliable blood grouping… (http://stm.sciencemag.org/content/9/381/eaaf9209.full)
Image caption:*(A) ABO forward strip, (B) F&R assay, and (C) ABO and Rh group multiplex antigen assays. I and II represent the forward blood-grouping observation *******; III and IV represent the reverse blood-grouping observation *******. The observation zone is located between the two dotted lines as shown in the platforms of the ABO and Rh group assays (C). A strip without antibody (BCG only) was used for quality control (QC).
(hat tip: New Scientist (https://www.newscientist.com/article/2124803-o-my-paper-strip-test-determines-blood-type-in-just-30-seconds/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=health&campaign_id=RSS%7CNSNS-health))
This post New Test Identifies Blood Type in Seconds (http://www.medgadget.com/2017/03/new-test-identifies-blood-type-seconds.html) appeared first on Medgadget (http://www.medgadget.com).
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