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Fabrication and characterization of rhombic silver nanoparticles for biosensing
Zhu Shaoli; Du ChunLEi; Fu Yongqi
Source PublicationOptical Materials
Volume31Issue:6Pages:769-774
2009
Language英语
Indexed BySCI ; Ei
Subtype期刊论文
AbstractFabrication and characterization of rhombic silver nanoparticles array bEing used as a localized surface plasmon resonance (LSPR)-based nano-biosensor were reported in this paper. The sensor consists of a rhombic Ag nanoparticles array with single particle dimension of not, vert, similar140 nm in-plane width and 47 nm out-of-plane hEight. Characteristics of the nanoparticles such as extinction spectroscopy properties, refractive index sensitivity, and concentration of the target molecules were analyzed. The LSPR-based extinction spectra of the antigen or antibody with lower concentration were detected. The detection results from 100 nM target molecule indicate a larger peak wavelength shift for the rhombic nanoparticles-based nano-biosensor than that of the reported triangular particles-based biosensor. Using a discrete dipole approximation (DDA) algorithm aided design approach we demonstrated that the refractive index sensitivity is 330 nm per refractive index unit for the fabricated rhombic Ag nanoparticles array.; Fabrication and characterization of rhombic silver nanoparticles array bEing used as a localized surface plasmon resonance (LSPR)-based nano-biosensor were reported in this paper. The sensor consists of a rhombic Ag nanoparticles array with single particle dimension of not, vert, similar140 nm in-plane width and 47 nm out-of-plane hEight. Characteristics of the nanoparticles such as extinction spectroscopy properties, refractive index sensitivity, and concentration of the target molecules were analyzed. The LSPR-based extinction spectra of the antigen or antibody with lower concentration were detected. The detection results from 100 nM target molecule indicate a larger peak wavelength shift for the rhombic nanoparticles-based nano-biosensor than that of the reported triangular particles-based biosensor. Using a discrete dipole approximation (DDA) algorithm aided design approach we demonstrated that the refractive index sensitivity is 330 nm per refractive index unit for the fabricated rhombic Ag nanoparticles array.
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/4992
Collection微电子装备总体研究室(四室微光学)
Corresponding AuthorZhu Shaoli
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
Zhu Shaoli,Du ChunLEi,Fu Yongqi. Fabrication and characterization of rhombic silver nanoparticles for biosensing[J]. Optical Materials,2009,31(6):769-774.
APA Zhu Shaoli,Du ChunLEi,&Fu Yongqi.(2009).Fabrication and characterization of rhombic silver nanoparticles for biosensing.Optical Materials,31(6),769-774.
MLA Zhu Shaoli,et al."Fabrication and characterization of rhombic silver nanoparticles for biosensing".Optical Materials 31.6(2009):769-774.
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