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Unlocking the decoding of unknown magnetic nanobarcode signatures
Nanoscale Advances ( IF 4.6 ) Pub Date : 2020-12-9 , DOI: 10.1039/d0na00924e
Mohammad Reza Zamani Kouhpanji 1, 2 , Bethanie J H Stadler 1, 3
Affiliation  

Magnetic nanowires (MNWs) rank among the most promising multifunctional magnetic nanomaterials for nanobarcoding applications owing to their safety, nontoxicity, and remote decoding using a single magnetic excitation source. Until recently, coercivity and saturation magnetization have been proposed as encoding parameters. Herein, backward remanence magnetization (BRM) is used to decode unknown remanence spectra of MNWs-based nanobarcodes. A simple and fast expectation algorithm is proposed to decode the unknown remanence spectra with a success rate of 86% even though the MNWs have similar coercivities, which cannot be accomplished by other decoding schemes. Our experimental approach and analytical analysis open a promising direction towards reliably decoding magnetic nanobarcodes to expand their capabilities for security and labeling applications.

中文翻译:

解锁未知磁性纳米条形码签名的解码

磁性纳米线 (MNW) 因其安全、无毒和使用单个磁激发源进行远程解码而成为纳米条形码应用中最有前途的多功能磁性纳米材料之一。直到最近,矫顽力和饱和磁化强度被提议作为编码参数。在此,反向剩磁 (BRM) 用于解码基于 MNWs 的纳米条形码的未知剩磁光谱。提出了一种简单快速的期望算法来解码未知剩磁谱,即使MNW具有相似的矫顽力,成功率也达到86%,这是其他解码方案无法实现的。我们的实验方法和分析分析为可靠解码磁性纳米条形码开辟了一个有希望的方向,以扩展其在安全和标签应用中的能力。
更新日期:2020-12-21
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