中國科學家研製出最快30秒測血型試紙大綱
Researchers from the Third Military Medical University in China said they have developed a cheap, easy test to determine a patient's blood type in a matter of seconds with nearly perfect accuracy.
我國第三軍醫大學的研究人員日前表示，已研製出一種鑑定病人血型的低成本簡易測試，準確率接近百分之百，耗時數秒。
The new assay is able to pinpoint whether a person is type A, B or O in just 30 seconds, and determine the blood type in full detail in about two minutes.
這項新測試能夠在僅僅30秒內就準確鑑定某人的血型是A、B還是O，並在約兩分鐘內鑑定血型的所有詳細情況。
Results on the new device were published in Science Translational Medicine.
《科學轉化醫學》雜誌刊登了這一血型鑑定新方法的研究結果。
To create the test, the researchers took advantage of chemical reactions between blood serum proteins and a widely-available dye called bromocreosol green.
爲了實現這項測試，研究人員利用了血漿蛋白和一種使用廣泛的染料溴甲酚綠之間的化學反應。
Each test paper strip was also equipped with antibodies that recognized different blood type markers, such as A or B antigens, which can be found on the surface of red blood cells.
每張試紙也都配備有可以識別匹配不同血型的抗體，例如他們可以在血紅細胞的表面發現A型或者B型血的抗原。
When a drop of blood was applied, the results appeared as visual color changes in the observation window of the paper strip: teal if a blood group antigen was present in a sample and brown if not.
當血滴在測試條上面，會有肉眼可以觀察到的顏色變化，這些顏色變化會在測試紙的觀察窗變化範圍之內，若提交樣本是血型匹配的抗原，爲藍綠色，如果沒有爲棕色。
The method was tested on 3,550 samples of human blood with results of more than 99.9% accuracy, and the only inconsistencies occurred in trials with highly uncommon blood types.
研究人員已用該方法對3550份人類血樣進行測試，結果準確度超99.9%，在試驗中唯一失敗的案例是由於血型罕見。
