Batch fabrication of disposable screen printed SERS arrays.

نویسندگان

  • Lu-Lu Qu
  • Da-Wei Li
  • Jin-Qun Xue
  • Wen-Lei Zhai
  • John S Fossey
  • Yi-Tao Long
چکیده

A novel facile method of fabricating disposable and highly reproducible surface-enhanced Raman spectroscopy (SERS) arrays using screen printing was explored. The screen printing ink containing silver nanoparticles was prepared and printed on supporting materials by a screen printing process to fabricate SERS arrays (6 × 10 printed spots) in large batches. The fabrication conditions, SERS performance and application of these arrays were systematically investigated, and a detection limit of 1.6 × 10(-13) M for rhodamine 6G could be achieved. Moreover, the screen printed SERS arrays exhibited high reproducibility and stability, the spot-to-spot SERS signals showed that the intensity variation was less than 10% and SERS performance could be maintained over 12 weeks. Portable high-throughput analysis of biological samples was accomplished using these disposable screen printed SERS arrays.

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عنوان ژورنال:
  • Lab on a chip

دوره 12 5  شماره 

صفحات  -

تاریخ انتشار 2012