条形码,大家都很熟悉,但目前广泛使用的可见条形码很容易被改变或复制。美国科学家开发出一种新方法,可以给物品“编上”隐形条形码,利用纳米颗粒的独特熔点辨别物品。实验显示,这些纳米颗粒条形码可添加到固态或者液态的药品中,保持稳定并且没有表现出明显毒副作用,从而展示了其可用于药品验证的潜力。研究者表 Barcodes are familiar to everyone, but the widely used visible barcodes are easy to change or copy. American scientists have developed a new method to “stealth” the barcode on an item and use the unique melting point of the nanoparticle to identify the item. Experiments have shown that these nanoparticle barcodes can be added to solid or liquid pharmaceuticals, remain stable and show no significant toxicological side effects, thus demonstrating their potential for drug validation. Investigator table