2020
DOI: 10.1002/jrs.6030
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Single‐Particle Analysis on Plasmonic Nanogap Systems for Quantitative SERS

Abstract: With advances in the design, synthesis and analysis of various metallic nanoparticles and substrates, surface‐enhanced Raman scattering (SERS) with plasmonic nanostructures has been extensively studied, and numerous SERS applications have been demonstrated in various applications including biomedical applications; however, the mechanism of SERS is not completely understood yet, and many challenges, including structural and spectral reproducibility, exist to achieve quantitative SERS analysis for practical and … Show more

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Cited by 51 publications
(26 citation statements)
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“…They discuss the challenges and perspectives in designing and synthesizing nanogap structures that deliver strong, reproducible, and reliable SERS signals for quantitative SERS analysis. [ 11 ]…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…They discuss the challenges and perspectives in designing and synthesizing nanogap structures that deliver strong, reproducible, and reliable SERS signals for quantitative SERS analysis. [ 11 ]…”
Section: Methodsmentioning
confidence: 99%
“…They discuss the challenges and perspectives in designing and synthesizing nanogap structures that deliver strong, reproducible, and reliable SERS signals for quantitative SERS analysis. [11] In the work presented by Xu, Bell, et al, a SERSactive superhydrophobic (SHP) tip is constructed by an adsorbing a layer of densely packed and uniform plasmonic nanoparticles onto a hydrophilic tip. The resulting particle-tipped needles allow dual enhancement of the Raman signals from microdroplets of low concentration analytes by combining analyte enrichment through solvent evaporation and plasmonic SERS enhancement.…”
Section: Theorymentioning
confidence: 99%
“…4b, d, f, h, i ), as well as the selection of the excitation wavelength and plasmonic materials jointly determine the ultrahigh sensitivity of SERS and SEIRA. For a long time, nanogap engineering is the basic and crucial task for ultrasensitive SERS or SEIRA-active structures 57 . In the following section, a series of coupled structures will be discussed, such as interparticle, particle–substrate coupled structures, and nanotip-substrate.…”
Section: Principles Of Sers and Seiramentioning
confidence: 99%
“…Surface-enhanced Raman spectroscopy (SERS) is an ultra-sensitive and highly specific optical detection technique, benefited from the molecular “fingerprint” of Raman spectrum and the enormous signal enhancement (down to a single-molecule level) by plasmonic nanomaterials [ 28 , 29 ]. The applications of SERS in chemistry, biology and medicine have been widely reported [ [30] , [31] , [32] ].…”
Section: Introductionmentioning
confidence: 99%