Synthesis of a low-cost, stable, silicon-based SERS substrate for rapid, nondestructive biosensing

Advanced Application of Raman Spectroscopy and Surface-Enhanced Raman Spectroscopy in Plant Disease Diagnostics: A Review

“…During a nondestructive experiment, plant tissues can also be sprayed by the SERS substrate directly. The SERS substrate sprayed on the surface of plant tissues often conceals the Raman signal in a nondestructive experiment . The poor stability of the SERS substrate leads to difficulty in obtaining reproducible results .…”

Charge transfer-induced enhancement of a Raman signal in a hybrid Ag–GaN nanostructure

“…[12][13][14][15][16][17][18] Several other materials, such as silicon, graphene, and actinide-embedded structures, have been used as supporting substrates for distributing Ag and Au nanoparticles to enhance the interactions between the nanoparticles and analyte molecules and consequently improve the limits of detection and enhancement factors. [19][20][21] Similarly, the GaN thin lms of various morphologies (planar and porous) have been used as supports for depositing silver nanoparticles, on which a signicant enhancement in the Raman signal has been reported. 22,23 This wide band-gap semiconductor is an attractive material because of its chemical resistance, high temperature/high power capability, electron saturation velocity, and internal spontaneous and piezoelectric polarization.…”

Immersion-plated palladium nanoparticles onto meso-porous silicon layer as novel SERS substrate for sensitive detection of imidacloprid pesticide

“…The cell and as-synthesized specimen were subsequently rinsed by ethanol and dried. Pd NPs deposition onto non-porous Si and PSi surfaces was achieved utilizing immersion plating methodology in an aqueous solution of 1 × 10 −3 M Pd (CH 3 COO) 2 at room temperature for different immersion times mainly (10,20,30,40,50,60, 70 and 80 s). The prepared samples were carefully washed by distilled water and dried naturally.…”

“…In a recent report, the synthesis of SiO 2 capped Ag NPs on Si as SERS active substrates for in-situ cellular DNA detection was demonstrated 19 . Yue et al 20 reported a sputtering technique to fabricate Ag onto PSi as an active SERS substrate for the sensitive detection of R6G. Further details on recent development of SERS-active substrates based on metal-coated PSi are well documented 21 .…”