title: Fabrication of transparent SERS platform via interface self-assembly of gold nanorods and gel trapping technique for on-site real time detection.
abstract: A transparent SERS platform was fabricated via the gel-trapping method coupled with a liquid/liquid interface self-assembly technique. We employed gold nanorods as the building blocks for interface self-assembly because of their strong localized surface plasmons upon excitation by infrared radiation. Based on a "top cover" configuration, this transparent SERS platform endows high signal reproducibility for directly detecting liquid samples by confining the sample droplet into a regular shape. The Au NR PDMS platform was able to directly detect crystal violet in aqueous solutions down to 10 ppb level with high enhancement factor (0.87 × 10(5)) and signal uniformity (RSD = 3.9%). Furthermore, SERS-based anti-fungal agent detection on a fish scale was demonstrated by simply covering the fish scale with a tailored GNRs PDMS film. The experimental results clearly show that the Au NR PDMS SERS platform has great potential for on-site real time detection of contaminants in water as well as on curved surfaces.
authors.affiliation: National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, 150080, China. hasiwuliji@126.com dianyanglin@hit.edu.cn zw_lu@sohu.com.
authors.forename: Xiang
authors.initials: X
authors.lastname: Lin
authors.affiliation: National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, 150080, China. hasiwuliji@126.com dianyanglin@hit.edu.cn zw_lu@sohu.com.
authors.forename: Wu-Li-Ji
authors.initials: WL
authors.lastname: Hasi
authors.affiliation: Affiliated Hospital of Inner Mongolia University for the Nationalities, Tongliao, 028007, Inner Mongolia, China.
authors.forename: Si-Qin-Gao-Wa
authors.initials: SQ
authors.lastname: Han
authors.affiliation: National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, 150080, China. hasiwuliji@126.com dianyanglin@hit.edu.cn zw_lu@sohu.com.
authors.forename: Xiu-Tao
authors.initials: XT
authors.lastname: Lou
authors.affiliation: National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, 150080, China. hasiwuliji@126.com dianyanglin@hit.edu.cn zw_lu@sohu.com.
authors.forename: Dian-Yang
authors.initials: DY
authors.lastname: Lin
authors.affiliation: National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin, 150080, China. hasiwuliji@126.com dianyanglin@hit.edu.cn zw_lu@sohu.com.
authors.forename: Zhi-Wei
authors.initials: ZW
authors.lastname: Lu