Graphene oxide/gold nanorod plasmonic paper – a simple and cost-effective SERS substrate for anticancer drug analysis

Abstract

Plasmonic paper has received attention as a surface-enhanced Raman scattering (SERS) substrate due to several advantages. These include low cost, high rates of sample collection, high physical flexibility and relative...

Reproducible Flexible SERS Substrates Inspired by Bionic Micro‐Nano Hierarchical Structures of Rose Petals

“…[ 4 ] Because of its unique fingerprint peak characteristics, non‐destructive testing, fast response, and other advantages, [ 5,6 ] it is widely used in environmental monitoring, [ 7,8 ] food safety, [ 9–11 ] biomedicine, and other fields. [ 12–14 ]…”

“…[4] Because of its unique fingerprint peak characteristics, non-destructive testing, fast response, and other advantages, [5,6] it is widely used in environmental monitoring, [7,8] food safety, [9][10][11] biomedicine, and other fields. [12][13][14] So far, there is no clear theoretical model that can explain the complex SERS phenomenon.However, electromagnetic enhancement (EM) and chemical enhancement (CM) are two kinds of SERS mechanisms that are generally accepted by the academic community. [15,16] The EM means that incident laser excites the surface of the precious metal nanostructure to form localized surface plasmon resonance, thereby amplifying the scattering signal.…”

“…[4] Because of its unique fingerprint peak characteristics, non-destructive testing, fast response, and other advantages, [5,6] it is widely used in environmental monitoring, [7,8] food safety, [9][10][11] biomedicine, and other fields. [12][13][14] So far, there is no clear theoretical model that can explain the complex SERS phenomenon.…”

Highly Sensitive and Reproducible SERS Substrates Based on Ordered Micropyramid Array and Silver Nanoparticles

“…Surface-enhanced Raman scattering (SERS) is a trace detection technology, which is widely used in cancer diagnosis, , drug detection, food safety, , anticounterfeiting coding, and other fields. − At present, the generally accepted SERS mechanism is electromagnetic enhancement (EM) and chemical enhancement (CM), among which EM enhancement is the main enhancement mechanism. , According to the EM enhancement mechanism, the localized surface plasmon resonance (LSPR) can be produced in the nanometer gaps between precious metal structures or particles, named “hot spots”, − and then a large Raman signal enhancement is generated when the signal molecules are between the hot spots. To meet practical applications, the preparation of a highly sensitive and reproducible SERS substrate is quite important. , So far, domestic and foreign scholars have proposed various construction strategies for SERS substrates, including nanoparticles, − ordered micro–nano structure array, − and multicomponent systems. − …”

“…To meet practical applications, the preparation of a highly sensitive and reproducible SERS substrate is quite important. 16,17 So far, domestic and foreign scholars have proposed various construction strategies for SERS substrates, including nanoparticles, 18−20 ordered micro−nano structure array, 21−23 and multicomponent systems. 24−26 Precious metal nanoparticles are the most convenient and commonly used method to fabricate SERS substrates.…”