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Wafer-Scale Gold Nanomesh via Nanotransfer Printing toward a Cost-Efficient Multiplex Sensing Platform
Advanced Materials Technologies ( IF 6.4 ) Pub Date : 2023-03-14 , DOI: 10.1002/admt.202201758
Min Gao 1, 2 , Yi‐Bo Zhao 1, 2 , Zhi‐Jun Zhao 3 , Guangyu Qiu 4 , Yile Tao 1 , Guochen Bao 5 , Ying Du 5 , Martin Spillmann 1 , Jiukai Tang 1, 2 , Soonhyoung Hwang 6 , Jun‐Ho Jeong 6 , Jing Wang 1, 2
Affiliation  

Multiplex sensing platforms via large-scale and cost-efficient fabrication processes for detecting biological and chemical substance are essential for many applications such as intelligent diagnosis, environmental monitoring, etc. For the past decades, the performance of those sensors has been significantly improved by the rapid development of nanofabrication technologies. However, facile processes with cost-effectiveness and large-scale throughput still present challenges. Nano-transfer printing together with the imprinting process shows potential for the efficient fabrication of 100 nm structures. Herein, a wafer-scale gold nanomesh (AuNM) structure on glass substrates with 100 nm scale features via nano-imprinting and secondary transfer printing technology is reported. Furthermore, potential sensing applications are demonstrated towards biochemical substance detection by using AuNM structures as highly responsive substrates for achieving the surface enhanced Raman spectroscopy (SERS), and as working electrodes of electrochemical analysisfor the detection of metallic ions. In the SERS detection mode, different nucleotides can be detected down to 1 nm level and distinguished via theirunique fingerprint patterns. As for electrochemical analysis mode, Pb2+ ions can be detected out of other interfering components with concentration down to 30 nm. These multimodal sensing mechanisms provide complementary informationand pave the way for low-cost and high-performance sensing platforms.

中文翻译:

通过纳米转移印刷实现晶圆级金纳米网,打造经济高效的多重传感平台

通过大规模和具有成本效益的制造工艺检测生物和化学物质的多重传感平台对于智能诊断、环境监测等许多应用至关重要。在过去的几十年中,这些传感器的性能已经通过纳米加工技术的快速发展。然而,具有成本效益和大规模吞吐量的简便过程仍然存在挑战。纳米转移印刷与压印工艺一起显示出高效制造 100 纳米结构的潜力。在此,报道了通过纳米压印和二次转印技术在具有 100 nm 尺度特征的玻璃基板上的晶圆级金纳米网 (AuNM) 结构。此外,通过使用 AuNM 结构作为实现表面增强拉曼光谱 (SERS) 的高响应基板,以及作为用于检测金属离子的电化学分析的工作电极,潜在的传感应用被证明可用于生化物质检测。在SERS检测模式下,可检测低至1 n的不同核苷酸m级别并通过其独特的指纹图案进行区分。至于电化学分析模式,Pb 2+离子可以从其他干扰成分中检测出来,浓度低至30 n m。这些多模式传感机制提供了互补信息,并为低成本和高性能传感平台铺平了道路。
更新日期:2023-03-14
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