In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 110, No. 6 ( 2019-06-12), p. 563-569
Abstract:
A novel approach has been successfully developed to synthesize Pd@Au core/shell nanosheets by using lemon extract as a biological reducing agent and microwave heating. This approach is suggested to be an eco-friendly, rapid and simple method for the synthesis of Pd@Au core/shell nanosheets. The Au shells that covered the Pd nanosheet surfaces were formed at 80 W in microwave for 20 min. The prepared Pd@Au core/shell nanosheets were characterized by UV–vis spectrophotometry, X-Ray diffraction, transmission electron microscopy, energy dispersive X-ray, energy dispersive X-ray elemental-mapping and energy dispersive X-ray line profile. A highly self-assemblage surface-enhanced Raman scattering methodology was developed by applying Pd@Au core/shell nanosheets for trace fluorescent dye detection. The highest R6G signal was attained with an Au layer of about 3 nm thickness. The results show that the SERS technique is able to detect trace fluorescent dye within a wide concentration range from 10 −8 M to 10 −17 M, with an extremely low limit of detection of 10 −17 M. The study offers a low-cost route to the fabrication of sensing devices capable of use for monitoring cancer progression in natural matrices such as blood.
Type of Medium:
Online Resource
ISSN:
2195-8556
,
1862-5282
Language:
Unknown
Publisher:
Walter de Gruyter GmbH
Publication Date:
2019
detail.hit.zdb_id:
2232675-3
detail.hit.zdb_id:
2128058-7
detail.hit.zdb_id:
203021-4
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