title: Cuttlebone-derived organic matrix as a scaffold for assembly of silver nanoparticles and application of the composite films in surface-enhanced Raman scattering.
abstract: Biologically derived materials provide a rich variety of approaches toward new functional materials because of their fascinating structures and environment-friendly features, which is currently a topic of research interest. In this paper, we show that the cuttlebone-derived organic matrix (CDOM) is an excellent scaffold for the one-step synthesis and assembly of silver nanoparticles (AgNPs), which can be further used as substrate for surface-enhanced Raman scattering (SERS). Formation of AgNPs-CDOM composite was accomplished by the reaction of CDOM with AgNO(3) and NH(3).H(2)O solution at 80 degrees C without using any other stabilizer and reducing agents. UV-vis spectra and TEM were utilized to characterize the AgNPs and investigate their formation process. Results demonstrate that the size and distribution of AgNPs can be partly regulated by changing incubation time; the concentration of NH(3).H(2)O is critical to the formation rate of AgNPs. As a proof of principle, we show that the AgNPs-CDOM composite can be employed in trace analysis using SERS.
authors.affiliation: State Key Laboratory of Bioelectronics, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, P R China.
authors.forename: Xueping
authors.initials: X
authors.lastname: Jia
authors.forename: Weiping
authors.initials: W
authors.lastname: Qian
authors.forename: Dajian
authors.initials: D
authors.lastname: Wu
authors.forename: Dongwei
authors.initials: D
authors.lastname: Wei
authors.forename: Guilan
authors.initials: G
authors.lastname: Xu
authors.forename: Xiaojun
authors.initials: X
authors.lastname: Liu
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000737:chemistry* / Q000648:ultrastructure; D049832:Decapodiformes / Q000737:chemistry*; D007700:Kinetics; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D053761:Nanocomposites / Q000737:chemistry*; D009930:Organic Chemicals / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013059:Spectrum Analysis, Raman; D013499:Surface Properties; D013997:Time Factors; D054457:Tissue Scaffolds
chemical_list: D009930:Organic Chemicals; D012834:Silver