>Microneedles remove pain

美研發(fā)微針頭打針不痛

US researchers have developed a microneedle skin patch (see photo) they claim can be stuck painlessly onto the skin by patients themselves. The less than 2cm-long patch bears some 50 microneedles, which can be coated with medicine or vaccine. Scientists believe the patches can effectively prevent some diseases if widely used.

美國研究人員最近研發(fā)出一種微針頭貼片(見圖)，號(hào)稱打針不會(huì)痛。在一塊不到2厘米長的貼片上，有50個(gè)微小的針頭，每個(gè)針頭上都可黏附藥劑或疫苗。病人無需專門培訓(xùn)即可自行注射。有科學(xué)家認(rèn)為，如果廣泛使用，將可有效預(yù)防某些疾病的發(fā)生。

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