title: Batch fabrication of disposable screen printed SERS arrays.
abstract: 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.
authors.affiliation: State Key Laboratory of Bioreactor Engineering, Shanghai Key Laboratory of Functional Materials Chemistry & Department of Chemistry, East China University of Science and Technology, Shanghai, P R China.
authors.forename: Lu-Lu
authors.initials: LL
authors.lastname: Qu
authors.forename: Da-Wei
authors.initials: DW
authors.lastname: Li
authors.forename: Jin-Qun
authors.initials: JQ
authors.lastname: Xue
authors.forename: Wen-Lei
authors.initials: WL
authors.lastname: Zhai
authors.forename: John S
authors.initials: JS
authors.lastname: Fossey
authors.forename: Yi-Tao
authors.initials: YT
authors.lastname: Long
mesh_terms: D007281:Ink; D057230:Limit of Detection; D053768:Metal Nanoparticles / Q000737:chemistry*; D046228:Microarray Analysis / Q000295:instrumentation*; D011327:Printing; D015203:Reproducibility of Results; D012235:Rhodamines / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman
chemical_list: D012235:Rhodamines; C026188:rhodamine 6G; D012834:Silver