title: Rapid fabrication of silver nanoparticle-coated filter paper as SERS substrate for low-abundance molecules detection.
abstract: Silver nanoparticles (Ag NPs) were fabricated on the fibers of the filter paper by the reaction between silver nitrate (AgNO3) and hydrazine hydrate (N2H4·H2O). By using the Ag NPs-coated paper, the limit of detection as low as 10-11M for Rhodamine B (RhB) and 10-10M for crystal violet (CV) was achieved. Moreover, the uniformity, reproducibility and stability of the Ag NPs-coated paper were also involved. Meanwhile, the detection of 10-4-10-6M moxifloxacin in deionized water and tap water was also carried out successfully by using the paper-based substrates. The fabrication process is easy to handle, cost-efficient and the as-prepared paper-based SERS substrate is ideal for rapid and simple detection of low-abundance molecules.
authors.affiliation: Testing Center, Yangzhou University, Yangzhou City, Jiangsu 225009, China. Electronic address: wxwei@yzu.edu.cn.
authors.forename: Wenxian
authors.initials: W
authors.lastname: Wei
authors.affiliation: Testing Center, Yangzhou University, Yangzhou City, Jiangsu 225009, China.
authors.forename: Qingli
authors.initials: Q
authors.lastname: Huang
mesh_terms: D005374:Filtration / Q000295:instrumentation*; D024841:Fluoroquinolones / Q000032:analysis; D053768:Metal Nanoparticles / Q000737:chemistry*; D000077266:Moxifloxacin; D010209:Paper; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D012996:Solutions; D013059:Spectrum Analysis, Raman; D014961:X-Ray Diffraction
chemical_list: D024841:Fluoroquinolones; D012996:Solutions; D012834:Silver; D000077266:Moxifloxacin
keywords: Crystal violet; Filter paper; Moxifloxacin; Rhodamine B; SERS; Silver nanoparticles